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Taking apart a wall wart
Topic themes Although in general I strive to cover a diversity of topics here in the blog, regular readers may have noticed that some amount of chronological theme-grouping still goes on. A few years...
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AI-empowered optoelectronics reinvigorates biomedical sensing
Researchers are exploring a combination of optoelectronics components, artificial intelligence (AI), and analog drivers and amplifiers to seek new frontiers in biomedical sensing. Bill Schweber...
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Building a low-cost, precision digital oscilloscope
Editor’s note: In this DI, high school student Tommy Liu modifies a popular low-cost DIY oscilloscope to enhance its input noise rejection and ADC noise with anti-aliasing filtering and IIR filtering....
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PUT a reset in its place
One of my jobs as an engineer was working in the engineering department of an electronic contract manufacturer. Our department designed test equipment for the manufacturing lines, but we also assisted...
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Infineon prepares DTO247-packaged IGBTs
Infineon is developing TRENCHSTOP H7 IGBTs in a DTO247 package, which is twice the size of a standard TO247. A single high-current IGBT in a DTO247 can replace multiple lower-current TO247 IGBTs...
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Intelligent high-side switches manage diverse loads
ST’s four-channel high-side switches, the IPS4140HQ and IPS4140HQ-1, drive resistive, capacitive, and inductive loads with one side connected to ground. The IPS4140HQ handles up to 0.6 A per channel,...
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IR color sensor enhances automotive displays
Vishay’s VEML6046X00 RGB IR sensor is AEC-Q100 qualified for use in vehicle displays and interior lighting. This compact device integrates a photodiode, low-noise amplifier, and 16-bit ADC in an opaque...
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Partners demo 200G multimode VCSEL
Keysight and Coherent showcased 200G-per-lane VCSEL technology at OFC 2025, demonstrating characterization, tuning, and validation. The multimode VCSEL enables higher data transfer rates to meet...
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Fractal Unveils Acoustic Tech to Disable Drones
Fractal Antenna Systems has introduced Acoustic Resonance Mitigation (ARM), a technology that disables drones using directed acoustic energy. ARM emits sonic, ultrasonic, and subsonic waves to induce...
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Flip ON flop OFF without a flip/flop
There’s been a lot of interesting conversation and DI teamwork lately devising circuits for ON/OFF power control using inexpensive momentary-contact switches (See “Related Content” below). Wow the...
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