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India’s pursuit of advanced stealth fighter technology has been a focal point in its defense modernization efforts. As of 2025, the Indian Air Force (IAF) operates a fleet that includes aircraft with varying degrees of stealth capabilities, while ambitious indigenous projects are underway to enhance its aerial prowess.

Current Stealth-Enhanced Aircraft in the IAF

While the IAF does not currently field a fully stealth fifth-generation fighter, it operates several aircraft with stealth features:

1. Dassault Rafale: India has inducted 36 Rafale fighters, which, although not classified as fifth-generation stealth aircraft, incorporate stealthy design elements and advanced avionics to reduce radar cross-section.
2. Sukhoi Su-30MKI: The Su-30MKI is a twin-engine multirole air superiority fighter developed by Russia’s Sukhoi and built under license by India’s Hindustan Aeronautics Limited (HAL). While not a stealth aircraft, efforts have been made to reduce its radar signature through various upgrades.

Indigenous Stealth Fighter Development: The AMCA Project

India’s most ambitious endeavor in stealth technology is the development of the Advanced Medium Combat Aircraft (AMCA), a fifth-generation stealth fighter designed to bolster the IAF’s capabilities.

In March 2024, the Cabinet Committee on Security (CCS) approved the full-scale engineering development of the AMCA, allocating over ₹15,000 crore for the creation of five prototypes and a structural test specimen. The Aeronautical Development Agency (ADA) of the Defence Research and Development Organisation (DRDO) is spearheading this project.

Key Features of the AMCA

• Stealth Design: The AMCA will feature advanced stealth characteristics, including serpentine air intakes, internal weapon bays, radar-absorbing materials, and conformal antennas, all aimed at minimizing its radar cross-section.
• Supersonic Cruise Capability: The aircraft is expected to achieve supersonic speeds without afterburners, enhancing its operational efficiency and reducing infrared signatures.
• Advanced Avionics: Integration of sensor fusion, multi-sensor data integration, and an Active Electronically Scanned Array (AESA) radar will provide superior situational awareness and combat capabilities.

Development Timeline and Future Prospects

The first AMCA prototype is slated to roll out within four years from the CCS approval, with its maiden flight anticipated a year thereafter. Comprehensive flight testing and certification processes are expected to culminate in the aircraft’s induction into the IAF by 2035.

The initial two squadrons of the AMCA will be powered by GE-F414 engines, developed in collaboration with a foreign partner. Subsequent variants, designated as AMCA Mark-2, will feature more powerful engines, with potential partners including General Electric, Rolls-Royce, and Safran.

Challenges and Strategic Significance

Developing a fifth-generation stealth fighter presents significant challenges, particularly in mastering stealth technology and advanced avionics. India’s previous attempt with the Kaveri engine project in the 1990s faced hurdles, underscoring the complexity of such endeavors. However, renewed efforts and international collaborations aim to overcome these obstacles.

The successful development and induction of the AMCA will position India among a select group of nations capable of producing advanced stealth fighters, significantly enhancing its air combat capabilities and strategic autonomy.

Conclusion

As of latest, while the Indian Air Force operates aircraft with certain stealth features, the realization of a fully indigenous stealth fighter remains a work in progress. The AMCA project represents a pivotal step toward achieving this goal, reflecting India’s commitment to advancing its defense technology and securing its airspace with homegrown solutions.

The post Top Stealth Fighter Jets in India appeared first on ELE Times.

Skyworks Solutions Inc of Irvine, CA, USA (which manufactures analog and mixed-signal semiconductors) has appointed Philip Brace as president & CEO and a member of the board of directors, effective 17 February...

I disassembled this "recalibrateable" Caliper and I was wondering why the LCD came off like this with no clear way for the signals to travel to it, I can only assume this is a very interesting way for them to recalibrate it without having to add more pins/pads. submitted by /u/holllow_world [link] [comments]

submitted by /u/liamkinne [link] [comments]

Soldering cobot I've made few months ago. It's based on UR5-e cobot with a JBC soldering tip. All is automated. submitted by /u/Open_Translator_7237 [link] [comments]

На війні загинув випускник ІАТЕ Валерій Потоскуєв kpi ср, 02/05/2025 - 23:04

submitted by /u/Mindless-Topic-5108 [link] [comments]

Navitas Semiconductor Corp of Torrance, CA, USA says that both its GaNFast gallium nitride (GaN) and GeneSiC silicon carbide (SiC) power semiconductor technologies have been adopted into Dell’s family of notebook adapters, from 60W to 360W...

MACOM Technology Solutions Inc of Lowell, MA, USA (which designs and makes RF, microwave, analog and mixed-signal and optical semiconductor technologies) says that its France-based European Semiconductor Center (MESC) has been awarded a multi-year contract from French Government agency Banque Publique d’Investissement (BPI) to lead the development and manufacturing of advanced semiconductor products, in collaboration with public and private sector partners...

Teledyne HiRel Semiconductors of Milpitas, CA, USA (part of the Teledyne Defense Electronics Group that provides solutions, sub-systems and components to the space, transportation, defense and industrial markets) has announced the availability of its latest rad-tolerant wideband 50GHz RF switch...

⭐ Запрошуємо на День відкритих дверей КПІАбітFest 15 лютого ОНЛАЙН! kpi ср, 02/05/2025 - 17:07

I cool find on some decommissioned equipment. submitted by /u/Miserable-Mode-1261 [link] [comments]

We had a requirement to measure the RMS value of a unipolar square wave being fed to a resistive load. Our resistive loads were light bulb filaments (Numitrons) so the degree of brightness was dependent on the applied RMS.

Our digital multimeters did not have an RMS measurement capability, but they could measure the average value of the waveform at hand.

Conversion of a measured average value to the RMS value was accomplished by taking the average value and dividing that by the square root of the waveform’s duty cycle.

The applicable equations are shown in Figure 1.

Figure 1 Equations used to convert a measured average value to RMS value by taking the average value and dividing that by the square root of the waveform’s duty cycle.

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 Converting from average to RMS values appeared first on EDN.

Toggle, slide, push-pull, push-push, tactile, rotary, etc. The list of available switch styles goes on and on (and off?). Naturally, as mechanical complexity goes up, so (generally) does price. Hence simpler generally translates to cheaper. Figure 1 goes for economy by adding a D-type flip-flop and a few discretes to a minimal SPST momentary pushbutton to implement a classic push-on, push-off switch.

Figure 1 F1a regeneratively debounces S1 so F1b can flip ON and flop OFF reliably.

Wow the engineering world with your unique design: Design Ideas Submission Guide

An (almost) universal truth about mechanical switches, unless they’re the (rare) mercury-wetted type, is contact bounce. When actuated, instead of just one circuit closure, you can expect several, usually separated by a millisecond or two. This is the reason for the RC network and other curious connections surrounding the F1a flip/flop.

When S1 is pushed and the circuit closed, a 10 ms charging cycle of C1 begins and continues until the 0/1 switching threshold of pin 4 is reached. When that happens, poor F1a is simultaneously set to 1 and reset to 0. This contradictory combination is a situation no “bistable” logic element should ever (theoretically) have to tolerate. So, does it self-destruct like standard sci-fi plots always paradoxically predict? 

Actually, the 4013-datasheet truth table tells us that nothing so dramatic (and unproductive) is to be expected. According to that, when connected this way, F1a simply acts as a non-inverting buffer with pin 2 following the state of pin 4, snapping high when pin 4 rises above its threshold, and popping low when it descends below. Positive feedback through C1 sharpens the transition while ensuring that F1a will ignore the inevitable S1 bounce. Meanwhile the resulting clean transition delivered to F1b’s pin 11 clock pin causes it to reliably toggle, flipping ON if it was OFF and flopping OFF if it was ON where it remains until S1 is next released and then pushed again.

Thus, the promised push-ON/push-OFF functionality is delivered!

The impedance of F1b’s pin 13 is supply-voltage dependent, ranging from 500 Ω at 5 V to 200 Ω at 15 V. If the current demand of the connected load is low enough, then power can be taken directly from F1b pin 13 and the Q1 MOSFET is unnecessary. Otherwise, it is, and a suitably capable transistor should be chosen. For example, the DMP3099L shown has an Ron less than 0.1 Ω and can pass 3 A.

But what about that “no switch at all” thing?

The 4013 input current is typically only 10 pA. Therefore, as illustrated in Figure 2, a simple DC touchplate comprising a small circuit board meander can provide adequate drive and allow S1 to be dispensed with altogether. It’s hard to get much cheaper than that.

Figure 2 An increase in RC network resistances allows substitution for S1 with a simple touchplate.

 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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The post Flip ON flop OFF appeared first on EDN.

Design engineers aiming to protect the input and output of op amps have several options. They can use an electrostatic discharge (ESD) diode or input current-limiting resistor alongside a transient voltage suppressor (TVS) diode. However, both design approaches have limitations. Here is why an op amp with integrated JFET input protection has better design merits.

Read the full article at EDN’s sister publication, Planet Analog.

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• Are you violating your op amp’s input-common-mode range?
• Op Amp Circuitry Ultra-High-Precision Resistor Usage: Matching and Stability Importance

The post Build ESD protection using JFETs in op amps appeared first on EDN.

submitted by /u/Exploring-new [link] [comments]

Процес очищення стічних вод в університеті kpi ср, 02/05/2025 - 13:53

Intelligent power and sensing technology firm onsemi of Scottsdale, AZ, USA says that the Science Based Targets initiative (SBTi) has approved its near-term science-based emissions reduction targets. Validation of these targets attests that the planned decrease of onsemi’s greenhouse gas (GHG) emissions is aligned to the ambition of limiting global temperature rise to 1.5°C...

APC Electronics (APC-E) of Bend, OR, USA — which researches, develops and manufactures wide-bandgap power semiconductor products — has announced Luminus Devices Inc of Sunnyvale, CA, USA — which designs and makes LEDs and solid-state technology (SST) light sources for illumination markets — as its exclusive worldwide sales channel and go-to-market partner...