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Car speed and radar guns

The following would apply to any moving vehicle, but just for the sake of clear thought, we will use the word “car”.
Imagine a car coming toward a radar antenna that is transmitting a microwave pulse which goes out toward that car and then comes back from that car in a time interval called “T1”. Then that same radar antenna transmits a second microwave pulse that also goes out toward that still oncoming car and then comes back from that car, but in a time interval called “T2”. This concept is illustrated in Figure 1.
Figure 1 Car radar timing where T1 is the time it takes for a first pulse to go out toward a vehicle get reflected back to the radiating source, and T2 is the time it takes for a second pulse to go out toward the same vehicle and get reflected back to the radiating source.
The further away the car is, the longer T1 and T2 will be, but if a car is moving toward the antenna, then there will be a time difference between T1 and T2 for which the distance the car has moved will be proportional to that time difference. In air, that scale factor comes to 1.017 nanoseconds per foot (ns/ft) of distance (see Figure 2).
Figure 2 Calculating roundtrip time for a radar signal required to catch a vehicle traveling at 55 mph and 65 mph.
Since we are interested in the time it takes to traverse the distance from the antenna to the car twice (round trip), we would measure a time difference of 2.034 ns/ft of car travel.
A speed radar measures the positional change of an oncoming or outgoing car. Since 60 mph equals 88 ft/s, we know that 55 mph comes to (80+2/3) ft/s. If the interval between transmitted radar pulses were one pulse per second, a distance of (80+2/3) feet would correspond to an ABS(T1-T2) time difference of 164.0761 ns. A difference in time intervals of more than that many nanoseconds would then be indicative of a driver exceeding a speed limit of 55 mph.
For example, a speed of 65 mph would yield 193.9081 ns, and on most Long Island roadways, it ought to yield a speeding ticket.
John Dunn is an electronics consultant, and a graduate of The Polytechnic Institute of Brooklyn (BSEE) and of New York University (MSEE).
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The post Car speed and radar guns appeared first on EDN.
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My grandpa's handmade intercom system from the communist era (~1980)
![]() | submitted by /u/Victor464543 [link] [comments] |
Top 10 Machine Learning Algorithms
The term ‘machine learning’ is used to describe the process of turning the machines smarter day by day in today’s technologically advanced environment. Machine learning serves as the foundation for the creation of voice assistants, tailored recommendations, and other intelligent applications.
The core of this intelligence is the machine learning algorithm, through which a computer learns from data and then makes decisions to some lower or higher extent without human intervention.
This article will explore what these algorithms are, the types, and their common daily life application, in addition to the top 10 machine learning algorithms.
Machine learning algorithms are sequences of instructions or models that allow computers to learn patterns from data and make decisions or prediction under conditions of uncertainty without explicit programming. Such an algorithm helps machines improve their performance in some task over time by processing data and observing trends.
In simple words, these enable computers to learn from data, just as humans learn from experience.
Types of Machine Learning Algorithms:
Machine learning algorithms fall into three main types-
- Supervised learning
These are systems of algorithms that work on data feeding from a system or set of systems and help form a conclusion from the data. In supervised learning, algorithms learn from labeled data, which means the dataset contains both input variables and their corresponding output. The goal is to train the model to make predictions or decisions. Common supervised learning algorithms include:
- Linear Regression
- Logistic Regression
- Decision Trees
- Random Forests
- Support Vector Machines
- Neural Networks
- Unsupervised learning
In this type of algorithms, the machine learning system studies data for pattern identification. There is no answer key provided and human operator instructing the computer. Instead, the machine learns correlations and relationships by analysing the data available to it. In unsupervised learning, the machine learning algorithm applies its knowledge to large data sets. Common unsupervised learning techniques include:
- Clustering
- Association
- Principal Component Analysis (PCA)
- Autoencoders
- Reinforcement learning
Reinforcement learning focuses on regimented learning. That is, a machine learning algorithm is given a set of actions, parameters, and an end value. Reinforcement learning is trial and error learning for the machine. It learns from past experiences and begins to modify its approach depending on circumstances.
- Q-learning
- Deep Q-Networks
- Policy Gradient Methods
- MCTS(Monte Carlo Tree Search)
Applications of Machine Learning Algorithm:
Many sectors utilize machine learning algorithms to improve decision-making and tackle complicated challenges.
- In transportation, machine learning enables self-driving cars and smart traffic systems
- In the healthcare sector, the algorithms promote disease diagnosis.
- In the finance industry, it power fraud detection, credit scoring and stock market forecasting.
- Cybersecurity relies on it for threat detection and facial recognition.
- Smart assistants, where NLP—drives voice recognition, language understanding, and contextual responses.
It also plays a vital role in agriculture, education, and smart city infrastructure, making it a cornerstone of modern innovation.
Machine Learning Algorithms Examples:
Machine learning algorithms are models that help computers learn from data and make predictions or decisions without being explicitly programmed. Examples include linear regression, decision trees, random forests, K-means clustering, and Q-learning, used across fields like healthcare, finance, and transportation.
Top 10 Machine Learning Algorithms:
- Linear Regression
Linear regression is a supervised machine learning technique, used for predicting and forecasting continuous-valued sales or housing prices. It is a technique that has been borrowed from statistics and is applied when one wishes to establish a relationship between one input variable (X) and one output variable (Y) using a straight line.
- Logistic Regression
Logistic regression is a supervised learning algorithm primarily used for binary classification problems. It allows to classify input data into two classes on the basis of probability estimate and set threshold. Hence, for the need to classify data into distinct classes, logistic regression stands useful in image recognition, spam email detection, or medical diagnosis.
- Decision Tree
Decision trees are supervised algorithms developed to address problems related to classification and prediction. It also looks very similar to a flow-chart diagram: a root node positioned at the top, which poses the first question on the data; given the answer, the data flows down one of the branches to another internal node with another question leading further down the branches. This continues until the data reach an end node
- Random Forest
Random forest is an algorithm which offers an ensemble of decision trees for classification and predictive modelling purposes. Unlike a single decision tree, random forest offers better predictive accuracy by combining predictions from many decision trees.
- Support Vector Machine (SVM)
Support vector machine is a supervised learning algorithm that can be applied for both classification and the prediction of instances. The appeal of SVM lies in the fact that it can build reliable classifiers even when very small samples of data are available. It builds a decision boundary called a hyperplane; a hyperplane in two-dimensional space is simply a line separating two sets of labeled data.
- K-Nearest Neighbors (KNN)
K-nearest neighbor (KNN) is a supervised learning model enhanced for classification and predictive modelling. K-nearest neighbour gives a clue about how the algorithm approaches classification: it will decide output classes based on how near they are to other data points on a graph.
- Naive Bayes
Naive Bayes describes a family of supervised learning algorithms used in predictive modelling for the binary or multi-class classification problems. It assumes independence between the features and uses Bayes’ Theorem and conditional probabilities to give an estimate of the likelihood of classification given all the feature values.
- K-Means Clustering
K-means is an unsupervised clustering technique for pattern recognition purposes. The objective of clustering algorithms is to partition a given data set into clusters such that the objects in one cluster are very similar to one another. Similar to the KNN (Supervised) algorithm, K-means clustering also utilizes the concept of proximity to find patterns in data.
- Principal Component Analysis (PCA)
Principal Component Analysis (PCA) is a statistical technique used to summarize information contained in a large data set by projecting it onto a lower-dimensional subspace. Sometimes, it is also regarded as a dimensionality reduction technique that tries to retain the vital aspects of the data in terms of its information content.
- Gradient Boosting (XGBoost/LightGBM)
The gradient boosting methods belong to an ensemble technique in which weak learners are iteratively added, with each one improving over the previous ones to form a strong predictive model. In the iterative process, each new learner is added to correct the errors made by the previous models, gradually improving the overall performance and resulting in a highly accurate final model
Conclusion:
Machine learning algorithms are used in a variety of intelligent systems: from spam filters and recommendation engines to fraud detection and even autonomous vehicles. Knowledge of the most popular algorithms, such linear regression, decision trees, and gradient boosting, explains how machines learn, adapt, and assist in smarter decision-making across industries. As data grows without bounds, the mastery of these algorithms becomes ever so vital in the effort toward innovation and problem solving in this digital age.
The post Top 10 Machine Learning Algorithms appeared first on ELE Times.
Impedance mask in power delivery network (PDN) optimization

In telecommunication applications, target impedance serves as a crucial benchmark for power distribution network (PDN) design. It ensures that the die operates within an acceptable level of rail voltage noise, even under the worst-case transient current scenarios, by defining the maximum allowable PDN impedance for the power rail on the die.
This article will focus on the optimization techniques to meet the target impedance using a point-of-load (PoL) device, while providing valuable insights and practical guidance for designers seeking to optimize their PDNs for reliable and efficient power delivery.
Defining target impedance
With the rise of high-frequency signals and escalating power demands on boards, power designers are prioritizing noise-free power distribution that can efficiently supply power to the IC. Controlling the power delivery network’s impedance across a certain frequency range is one approach to guarantee proper operation of high-speed systems and meet performance demands.
This impedance can generally be estimated by dividing the maximum allowed ripple voltage by the maximum expected current step load. The power delivery network’s target impedance (ZTARGET) can be calculated with below equation:
Achieving ZTARGET across a wide frequency spectrum requires a power supply at lower frequencies, combined with strategically placed decoupling capacitors at middle and higher frequencies. Figure 1 shows the impedance frequency characteristics of multi-layer ceramic capacitors (MLCCs).
Figure 1 The impedance frequency characteristics of MLCCs are shown across a wide frequency spectrum. Source: Monolithic Power Systems
Maintaining the impedance below the calculated threshold ensures that even the most severe transient currents generated by the IC, as well as induced voltage noise, remain within acceptable operational boundaries.
Figure 2 shows the varying target impedance across different frequency ranges, based on data from Qualcomm website. This means every element in the power distribution must be optimized at different frequencies.
Figure 2 Here is a target impedance example for different frequency ranges. Source: Qualcomm
Understanding PDN impedance
In theory, a power rail aims for the lowest possible PDN impedance. However, it’s unrealistic to achieve an ideal zero-impedance state. A widely adopted strategy to minimize PDN impedance is placing various decoupling capacitors beneath the system-on-chip (SoC), which flattens the PDN impedance across all frequencies. This prevents voltage fluctuations and signal jitter on output signals, but it’s not necessarily the most effective method to optimize power rail design.
Three-stage low-pass filter approach
To further explore optimizing power rail design, the fundamentals of PDN design must be re-examined in addition to considering new approaches to achieve optimal performance. Figure 3 shows the PDN conceptualized as a three-stage low-pass filter, where each stage of this network plays a specific role in filtering and stabilizing the current drawn from the SoC die.
Figure 3 The PDN is conceptualized as a three-stage low-pass filter. Source: Monolithic Power Systems
The three-stage low-pass filter is described below:
- Current drawn from the SoC die: The process begins with current being drawn from the SoC die. Any current drawn is filtered by the package, which interacts with die-side capacitors (DSCs). This initial filtering stage reduces the current’s slew rate before it reaches the PCB socket.
- PCB layout considerations and MLCCs: Once the current passes through the PCB ball grid arrays (BGAs), the second stage of filtering occurs as the current flows through the power planes on the PCB and encounters the MLCCs. During this stage, it’s crucial to focus on selecting capacitors that effectively operate at specific frequencies. High-frequency capacitors placed beneath the SoC do not significantly influence lower frequency regulation.
- Voltage regulator (VR) with power planes and bulk capacitors: The final stage involves the VR and bulk capacitors, which work together to stabilize the power supply by addressing lower-frequency noise.
The PDN’s three-stage approach ensures that each component contributes to minimizing impedance across different frequency bands. This structured methodology is vital for achieving reliable and efficient power delivery in modern electronic systems.
Case study: Telecom evaluation board analysis
This in-depth examination uses a telecommunications-specific evaluation board from MPS, which demonstrates the capabilities of the MPQ8785, a high-frequency, synchronous buck converter, in a real-world setting. Moreover, this case study underlines the importance of capacitor selection and placement to meet the target impedance.
To initiate the process, PCB parasitic extraction is performed on the MPS evaluation board. Figure 4 shows a top view of the MPQ8785 evaluation board layout, where two ports are selected for analysis. Port 1 is positioned after the inductor, while Port 2 is connected to the SoC BGA.
Figure 4 PCB parasitic extraction is performed on the telecom evaluation board. Source: Monolithic Power Systems
Capacitor models from vendor websites are also included in this layout, including the equivalent series inductance (ESL) and equivalent series resistance (ESR) parasitics. As many capacitor models as possible are allocated beneath the SoC in the bottom of the PCB to maintain a flat impedance profile.
Table 1 Here is the initial capacitor selection for different quantities of capacitors targeting different frequencies. Source: Monolithic Power Systems
Figure 5 shows a comparison of the target impedance profile defined by the PDN mask for the core rails to the actual initial impedance measured on the MPQ8785 evaluation board using the initially selected capacitors. This graphical comparison enables a direct assessment of the impedance characteristics, facilitating the evaluation of the PDN performance.
Figure 5 Here is a comparison between the target impedance profile and initial impedance using the initially selected capacitors. Source: Monolithic Power Systems
Based on the data from Figure 5, the impedance exceeds the specified limit within the 300-kHz to 600-kHz frequency range, indicating that additional capacitance is required to mitigate this issue. Introducing additional capacitors effectively reduces the impedance in this frequency band, ensuring compliance with the specification.
Notably, high-frequency capacitors are also observed to have a negligible impact on the impedance at higher frequencies, suggesting that their contribution is limited to specific frequency ranges. This insight informs optimizing capacitor selection to achieve the desired impedance profile.
Through an extensive series of simulations that systematically evaluate various capacitor configurations, the optimal combination of capacitors required to satisfy the impedance mask requirements was successfully identified.
Table 2 The results of this iterative process outline the optimal quantity of capacitors and total capacitance. Source: Monolithic Power Systems
The final capacitor selection ensures that the PDN impedance profile meets the specified mask, thereby ensuring reliable power delivery and performance. Figure 6 shows the final impedance with optimized capacitance.
Figure 6 The final impedance with optimized capacitance meets the specified mask. Source: Monolithic Power Systems
With a sufficient margin at frequencies above 10 MHz, capacitors that primarily affect higher frequencies can be eliminated. This strategic reduction minimizes the occupied area and decreases costs while maintaining compliance with all specifications. Performance, cost, and space considerations are effectively balanced by using the optimal combination of capacitors required to satisfy the impedance mask requirements, enabling robust PDN functionality across the operational frequency range.
To facilitate the case study, the impedance mask was modified within the 10-MHz to 40-MHz frequency range, decreasing its overall value to 10 mΩ. Implementing 10 additional 0.1-µF capacitors was beneficial to reduce impedance in the evaluation board, which then effectively reduced the impedance in the frequency range of interest.
Figure 7 shows the decreased impedance mask as well as the evaluation board’s impedance response. The added capacitance successfully reduces the impedance within the specified frequency range.
Figure 7 The decreased PDN mask with optimized capacitance reduces impedance within the specified frequency range. Source: Monolithic Power Systems
Compliance with impedance mask
This article used the MPQ8785 evaluation board to optimize PDN performance, ensuring compliance with the specified impedance mask. Through this optimization process, models were developed to predict the impact of various capacitor types on impedance across different frequencies, which facilitates the selection of suitable components.
Capacitor selection for optimized power rail design depends on the specific impedance mask and frequency range of interest. A random selection of capacitors for a wide variety of frequencies is insufficient for optimizing PDN performance. Furthermore, the physical layout must minimize parasitic effects that influence overall impedance characteristics, where special attention must be given to optimizing the layout of capacitors to mitigate these effects.
Marisol Cabrera is application engineer manger at Monolithic Power Systems (MPS).
Albert Arnau is application engineer at Monolithic Power Systems (MPS).
Robert Torrent is application engineer at Monolithic Power Systems (MPS).
Related Content
- SoC PDN challenges and solutions
- Power 107: Power Delivery Networks
- Debugging approach for resolving noise issues in a PDN
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- Power delivery network design requires chip-package-system co-design approach
The post Impedance mask in power delivery network (PDN) optimization appeared first on EDN.
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Vishay Intertechnology Automotive Grade IHDM Inductors Offer Stable Inductance and Saturation at Temps to +180 °C
Vishay Intertechnology, Inc. introduced two new IHDM Automotive Grade edge-wound, through-hole inductors in the 1107 case size with soft saturation current to 422 A. Featuring a powdered iron alloy core technology, the Vishay Inductors Division’s IHDM-1107BBEV-2A and IHDM-1107BBEV-3A provide stable inductance and saturation over a demanding operating temperature range from -40 °C to +180 °C with low power losses and excellent heat dissipation.
The edge-wound coil of the devices released provides low DCR down to 0.22 mΩ, which minimizes losses and improves rated current performance for increased efficiency. Compared to competing ferrite-based solutions, the IHDM-1107BBEV-2A and IHDM-1107BBEV-3A offer 30 % higher rated current and 30 % higher saturation current levels at +125 °C. The inductors’ soft saturation provides a predictable inductance decrease with increasing current, independent of temperature.
With a high isolation voltage rating up to 350 V, the AEC-Q200 qualified devices are ideal for high current, high temperature power applications, including DC/DC converters, inverters, on-board chargers (OBC), domain control units (DCU), and filters for motor and switching noise suppression in internal combustion (ICE), hybrid (HEV), and full-electric (EV) vehicles. The inductors are available with a selection of two core materials for optimized performance depending on the application.
Standard terminals for the IHDM-1107BBEV-2A and IHDM-1107BBEV-3A are stripped and tinned for through-hole mounting. Vishay can customize the devices’ performance — including inductance, DCR, rated current, and voltage rating — upon request. Customizable mounting options include bare copper, surface-mount, and press fit. To reduce the risk of whisker growth, the inductors feature a hot-dipped tin plating. The devices are RoHS-compliant, halogen-free, and Vishay Green.
The post Vishay Intertechnology Automotive Grade IHDM Inductors Offer Stable Inductance and Saturation at Temps to +180 °C appeared first on ELE Times.
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The second version of my A+E Key M.2 to Front Panel USB 2.0 Adapter Card
![]() | I posted V1.0 here a few months ago and a couple people pointed out some problems. I also found some of my own. I need to change the design, so I've made V1.1. I've made a lot of improvements to the board and my documentation. All of my progress can be tracked in the v1.1 branch on my github. I am planning on ordering new boards soon. Any feedback would be appreciated. [link] [comments] |
Flip ON Flop OFF: high(ish) voltages from the positive supply rail

We’ve seen lots of interesting conversations and Design Idea (DI) collaboration devising circuits for power switching using inexpensive (and cute!) momentary-contact SPST pushbuttons. A recent and interesting extension of this theme by frequent contributor R Jayapal addresses control of relatively high DC voltages: 48 volts in his chosen case.
Wow the engineering world with your unique design: Design Ideas Submission Guide
In the course of implementing its high voltage feature, Jayapal’s design switches the negative (Vss a.k.a. “ground”) rail of the incoming supply instead of the (more conventional) positive (Vdd) rail. Of course, there’s absolutely nothing physically wrong with this choice (certainly the electrons don’t know the difference!). But because it’s a bit unconventional, I worry that it might create possibilities for the unwary to make accidental, and potentially destructive, misconnections.
Figure 1’s circuit takes a different tack to avoid that.
Figure 1 Flip ON/Flop OFF referenced to the V+ rail. If V+ < 15v, then set R4 = 0 and omit C2 and Z1. Ensure that C2’s voltage rating is > (V+ – 15v) and if V+ > 80v, R4 > 4V+2
Figure 1 returns to an earlier theme of using a PFET to switch the positive rail for power control, and a pair of unbuffered CMOS inverters to create a toggling latch to control the FET. The basic circuit is described in “Flip ON Flop OFF without a Flip/Flop.”
What’s different here is that all circuit nodes are referenced to V+ instead of ground, and Zener Z1 is used to synthesize a local bias reference. Consequently, any V+ rail up to the limit of Q1’s Vds rating can be accommodated. Of course, if even that’s not good enough, higher rated FETs are available.
Be sure to tie the inputs of any unused U1 gates to V+.
Stephen Woodward’s relationship with EDN’s DI column goes back quite a long way. Over 100 submissions have been accepted since his first contribution back in 1974.
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- Elaborations of yet another Flip-On Flop-Off circuit
- Latching D-type CMOS power switch: A “Flip ON Flop OFF” alternative
The post Flip ON Flop OFF: high(ish) voltages from the positive supply rail appeared first on EDN.
Hack Club Highway - My first two PCBs
![]() | Project 1: µController - A Custom Game Controller for Unrailed submitted by /u/RunTheBot I designed this compact controller specifically for playing Unrailed. Here's what makes it special:
The journey wasn't without its challenges - I may have slightly overheated a Nano S3 during assembly 😅 but managed to salvage it with some creative bodge-wiring using a Xiao. Currently, it's fully functional except for one hall effect sensor! Project 2: The Overkill Macro PadEver thought "I need more buttons"? Well, how about 100 of them? Features: - 100 mechanical switches - Individual RGB LEDs for EVERY key - OLED display - Powered by a Raspberry Pi Pico - Auto polarity-correcting power input (because who has time to plug in power the right way?) Some fun challenges I ran into: - Had to redo the PCB multiple times (always double-check your footprints!) - Learned the hard way about thermal management during soldering - Discovered that 100 LEDs can create some interesting signal integrity challenges - Found some microscopic shorts that only showed up when the board heated up (freezer debugging FTW!) Currently, it's working with some bodge wires, though a few keys are still being stubborn. The case needs some tweaking, but hey, that's part of the fun of DIY, right? Lessons Learned
Both projects are open source, and I'll be happy to share more details if anyone's interested! Let me know if you have any questions! [link] [comments] |
TDK showcases at electronica India 2025 its latest technologies driving transformation in automotive, industrial, sustainable energy, and digital systems
Under the claim “Accelerating transformation for a sustainable future,” TDK presents highlight solutions from September 17 to 19, 2025, at the Bangalore International Exhibition Centre (BIEC).
At hall 3, booth H3.D01, visitors can explore innovations in automotive solutions, EV charging, renewable energy, industrial automation, smart metering, and AI-powered sensing TDK’s technologies support the region’s shift toward cleaner mobility, intelligent infrastructure, and energy efficient living across automotive, industrial, and consumer sectors TDK Corporation will showcase its latest component and solution portfolio at electronica India 2025, held from September 17 to 19, 2025, at the Bangalore International Exhibition Centre (BIEC).
With the theme “Accelerating transformation for a sustainable future,” TDK presents technologies that reflect the region’s priorities in mobility electrification, industrial modernization, renewable energy, and digital infrastructure. The exhibit at hall 3, booth H3.D01 features live demonstrations and expert-led insights across key applications — from electric vehicles and smart factories to energy-efficient homes and immersive digital experiences.
TDK’s solution highlights at electronica India 2025:
Automotive solutions: Explore TDK’s comprehensive portfolio for electric two-wheelers and passenger vehicles, including components for battery management, motor control, onboard charging, and ADAS. Highlights include haptic feedback modules, Hall-effect sensors, and a live demo of the Volkswagen ID.3 traction motor featuring precision sensing technologies.
EV charging: Experience innovations in DC fast charging, including components for bi-directional DC-DC conversion, varistors, inductors, and transformers. A live 11 kW reference board demonstrates scalable, efficient charging for India’s growing e-mobility infrastructure.
Industrial automation: Discover intelligent sensing and connectivity solutions that boost uptime and efficiency. Live demos include SmartSonic Mascotto (MEMS time-of-flight), USSM (ultrasonic module), and VIBO (industrial accelerometer) – all designed to support predictive maintenance and smart infrastructure.
Energy & home: TDK presents high-voltage contactors, film capacitors, and protection devices for solar, wind, hydrogen, and storage systems. Explore TDK’s India-made portfolio of advanced passive components and power quality solutions, developed at the company’s state-of-the-art Nashik and Kalyani facilities. These technologies support a wide range of applications, including mobility, industrial systems, energy infrastructure, and home appliances.
Smart metering: TDK showcases ultrasonic sensor disks, NTC sensors, inductors, and RF solutions that enable accurate and connected metering for electricity, water, and gas, supporting smarter utility management.
ICT & Connectivity: Explore AR/VR retinal projection modules, energy harvesting systems, and acoustic innovations. Highlights include PiezoListen floating speakers, BLE-powered CeraCharge demos, and immersive sound and navigation technologies for smart devices and wearables.
Accessibility & Innovation: TDK presents the WeWALK Smart Cane, powered by ultrasonic time-of-flight sensors, accelerometers, gyroscopes, and MEMS microphones — enhancing mobility and independence for visually impaired users.
The post TDK showcases at electronica India 2025 its latest technologies driving transformation in automotive, industrial, sustainable energy, and digital systems appeared first on ELE Times.
k-Space hires new sales director
Top 10 Machine Learning Frameworks
Today’s world includes self-driving cars, voice assistants, recommendation engines, and even medical diagnoses thrive powered at their core by robust machine learning frameworks. Machine learning frameworks are the solution that really fuels all these intelligent systems. This article will delve into the definition and what it means to function as a machine learning framework, mention some popular examples, and review the top 10 ML frameworks.
A machine learning framework is a set of tools, libraries, and interfaces to assist developers and data scientists in building, training, testing, and deploying machine learning models.
It functions as a ready-made software toolkit, handling the intricate code and math so that users may concentrate on creating and testing algorithms.
Here is how most ML frameworks work:
- Data Input: You feed your data into the framework (structured/unstructured).
- Model Building: Pick or design an algorithm (e.g neural networks).
- Training: The model is fed data so it learns by adjusting weights via optimization techniques.
- Evaluation: Check the model’s accuracy against brand new data.
- Deployment: Roll out the trained model to implementation environments (mobile applications, website etc.)
Examples of Machine Learning Frameworks:
- TensorFlow
- PyTorch
- Scikit-learn
- Keras
- XGBoost
Top 10 Machine Learning Frameworks:
- TensorFlow
Google Brain created the open-source TensorFlow framework for artificial intelligence (AI) and machine learning (ML). It was created to make it easier to create, train and implement machine learning models especially deep learning models across several platforms by offering the necessary tools.
Applications supported by TensorFlow are diverse and include time series forecasting, reinforcement learning, computer vision and natural language processing.
- PyTorch
Created by Facebook AI Research, PyTorch is an eminent, yet beginner-friendly academic research framework. PyTorch uses dynamic computation graphs that provide easy debugging and testing. Being very flexible, it is mostly preferred while conducting deep learning work with a number of breakthroughs and research papers taking PyTorch as their primary framework.
- Scikit-learn
Scikit-learn is a Python library built upon NumPy and SciPy. It’s the best choice for classical machine learning algorithms like linear regression, decision trees, and clustering. It’s simple API with documented instructions for use makes it fit for handling small to medium-sized datasets when prototyping.
- Keras
Being a high-level API, Keras is tightly integrated into TensorFlow. More modern deep learning techniques promoted and supported from the interface deliver ease in realizing ML problems. Keras covers all the stages that an ML engineer goes through in the realization of a solution: data processing, hyperparameter tuning, deployment, etc. Its intention was to enable fast experimentation.
- XGBoost
XGBoost- Extreme Gradient Boosting-is an advanced machine-learning technique geared toward efficiency, speed, and utmost performance. It is a GBDT-based machine-learning library that is scalable and distributed. It is the best among the machine learning libraries for regression, classification, and ranking, offering parallel tree-boosting.
The understanding of the bases of machine learning and the methods on which XGBoost runs is important; these are supervised machine learning, decision trees, ensemble learning, and gradient boosting.
- LightGBM
LightGBM is an open-source high-performance framework and is also created by Microsoft. It is the technique on gradient boosting used in ensemble learning framework.
LightGBM is a fast gradient boosting framework that uses tree-based learning algorithms. It was developed in the product environment while keeping the requirements of speed and scalability in mind. Training times are much shorter, and the computer resources are fewer. Memory requirements are also less, making it suitable for resource-starved systems.
LightGBM will also, in many cases, provide better predictive accuracy because of its novel histogram-based algorithm and optimized decision tree growth strategies. It allows for parallel learning, distributed training on multiple machines, and GPU acceleration-to scale to massive datasets while maintaining performance
- Jax
JAX is an open-source machine learning framework based on the functional programming paradigm developed and maintained by Google. JAX stands for “Just Another XLA,” where XLA is short for Accelerated Linear Algebra. It is famous for numerical computation and automatic differentiation, which assist in the implementation of many machine learning algorithms. JAX, being a relatively new machine learning framework, is some way in providing features useful in realizing a machine learning model.
- CNTK
Microsoft Cognitive Toolkit (CNTK) is an open-source deep learning framework developed by Microsoft to implement efficient training of deep neural networks. It is scalable in training models across multiple GPUs and across multiple servers, especially good for large datasets and complex architectures. Weighing its flexibility, CNTK supports almost all classes of neural networks and is useful in many kinds of machine-learning tasks such as feedforward, convolutional, and recurrent networks.
- Apache Spark MLlib
Apache Spark MLlib is Apache Spark’s scalable machine learning library built to ease the development and deployment of machine learning apps for large datasets. It offers a rich set of tools and algorithms for various machine learning tasks. It is designed for simplicity, scalability and easy integration with other tools.
- Hugging Face Transformers
Hugging Face Transformers is an open-source framework specializing in deep learning paradigms developed by Hugging Face. It provides APIs and interfaces for the download of state-of-the-art pre-trained models. Following their download, the user can then fine-tune the model to best serve his or her purpose. The models perform usual tasks in all modalities, including natural language processing, computer vision, audio, and multi-modal. Hugging Face Transformers represent Machine Learning toolkits for NLP, trained on specific tasks.
Conclusion:
Machine learning frameworks represent the very backbone of modern AI applications. Whether a beginner or a seasoned pro building very advanced AI solutions, the right framework will make all the difference.
From huge players such as TensorFlow and PyTorch down to niche players such as Hugging Face and LightGBM, each framework claims certain virtues that it is best suited for in different kinds of tasks and industries.
The post Top 10 Machine Learning Frameworks appeared first on ELE Times.
Keysight Automated Test Solution Validates Fortinet’s SSL Deep Inspection Performance and Network Security Efficacy
Keysight BreakingPoint QuickTest simplifies application performance and security effectiveness assessments with predefined test configurations and self-stabilizing, goal-seeking algorithms
Keysight Technologies, Inc. announced that Fortinet chose the Keysight BreakingPoint QuickTest network application and security test tool to validate SSL deep packet inspection performance capabilities and security efficacy of its FortiGate 700G series next-generation firewall (NGFW). BreakingPoint QuickTest is Keysight’s turn-key performance and security validation solution with self-stabilizing, goal-seeking algorithms that quickly assess the performance and security efficacy of a variety of network infrastructures.
Enterprise networks and systems face a constant onslaught of cyber-attacks, including malware, vulnerabilities, and evasions. These attacks are taking a toll, as 67% of enterprises report suffering a breach in the past two years, while breach-related lawsuits have risen 500% in the last four years.
Fortinet developed the FortiGate 700G series NGFW to help protect enterprise edge and distributed enterprise networks from these ever-increasing cybersecurity threats, while continuing to process legitimate customer-driven traffic that is vital to their core business. The FortiGate 700G is powered by Fortinet’s proprietary Network Processor 7 (NP7), Security Processor 5 (SP5) ASIC, and FortiOS, Fortinet’s unified operating system. Requiring an application and security test solution that delivers real-world network traffic performance, relevant and reliable security assessment, repeatable results, and fast time-to-insight, Fortinet turned to Keysight’s BreakingPoint QuickTest network applications and security test tool.
Using BreakingPoint QuickTest, Fortinet validated the network performance and cybersecurity capabilities of the FortiGate 700G NGFW using:
- Simplified Test Setup and Execution: Pre-defined performance and security assessment suites, along with easy, click-to-configure network configuration, allow users to set up complex tests in minutes.
- Reduced Test Durations: Self-stabilizing, goal-seeking algorithms accelerate the test process and shorten the overall time-to-insight.
- Scalable HTTP and HTTPS Traffic Generation: Supports all RFC 9411 tests used by NetSecOPEN, an industry consortium that develops open standards for network security testing. This includes the 7.7 HTTPS throughput test, allowing Fortinet to quickly assess that the FortiGate 700G NGFW’s SSL Deep Inspection engine can support up to 14 Gbps of inspected HTTPS traffic.
- NetSecOPEN Security Efficacy Tests: BreakingPoint QuickTest supports the full suite of NetSecOPEN security efficacy tests, including malware, vulnerabilities, and evasions. This ensures the FortiGate 700G capabilities are validated with relevant, repeatable, and widely accepted industry standard test methodologies and content.
- Robust Reporting and Real-time Metrics: Live test feedback and clear, actionable reports showed that the FortiGate 700G successfully blocked 3,838 of the 3,930 malware samples, 1,708 of the 1,711 CVE threats, and stopped 100% of evasions, earning a grade “A” across all security tests.
Nirav Shah, Senior Vice President, Products and Solutions, Fortinet, said: “The FortiGate 700G series next-generation firewall combines cutting-edge artificial intelligence and machine learning with the port density and application throughput enterprises need, delivering comprehensive threat protection at any scale. Keysight’s intuitive BreakingPoint QuickTest application and security test tool made our validation process easy. It provided clear and definitive results that the FortiGate 700G series NGFW equips organizations with the performance and advanced network security capabilities required to stay ahead of current and emerging cyberthreats.”
Ram Periakaruppan, Vice President and General Manager, Keysight Network Test and Security Solutions, said: “The landscape of cyber threats is constantly evolving, so enterprises must be vigilant in adapting their network defenses, while also continuing to meet their business objectives. Keysight’s network application and security test solutions help alleviate the pressure these demands place on network equipment manufacturers by providing an easy-to-use package with pre-defined performance and security tests, innovative goal-seeking algorithms, and continuously updated benchmarking content, ensuring solutions meet rigorous industry requirements.”
The post Keysight Automated Test Solution Validates Fortinet’s SSL Deep Inspection Performance and Network Security Efficacy appeared first on ELE Times.
TIL you can use the iPhone magnifier app to inspect PCB much better than the camera app
![]() | One of the difficulties I had with the camera app is that you couldn't leave the LED on for close up pictures to read off resistor codes. The magnifier app will let you manually leave the iPhone flashlight on, and set a fixed zoom if needed and save the controls layout so you can jump back to PCB inspection. The first picture is with the magnifier and the second is with the iPhone camera app. It saves you from needing to take a PCB to a microscope to figure out what was up with it. Also saves some disassembly to get the PCB out of whatever it is installed in. I was able to figure out the board at some point had been hand soldered with the wrong resistor value and that was the source of all our issues. [link] [comments] |
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