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Short circuit tracer/finder uses low power

Build this bench tool and become a master at pinpointing shorts. Read More...

Optocoupler speed-up also reduces power consumption

Optocouplers tend to be sluggish, unless you have this circuit up your sleeve. Read More...

LTC Design Note: High input IP3 mixer enables robust VHF receivers

High performance mixer has built-in transformers. Read More...

Add phases to simple RC oscillator

Here’s a simple way to add one or more output phases to an RC oscillator. Read More...

3 pins, 3 LEDs, 3 buttons

This LED multiplexing scheme allows for switches in the matrix too. Read More...

Hybrid vacuum tube/solid-state audio power amplifier

An audio power amp design that combines vacuum tube input circuitry with solid-state output and feedback components. Read More...

Avago Tech Note: 14.2mm wide Creepage and clearance optocouplers for high-voltage applications

Not any optocoupler will do for applications requiring extra-high-voltage isolation. Read More...

HB-LED flashing beacon repurposes switching regulator

A classic, low-cost “switcher” IC is repurposed to flash a high-brightness LED in this minimal-parts-count Design Idea. Read More...

Avago Tech Note: High-speed optocouplers enable industrial networks

Communicate at up to 25Mb/s over (e.g.) PROFIBUS. Read More...

555-based class-D headphone driver makes great practice amp

This class-D audio amp “plays” to the 555’s strengths. Read More...

Improve efficiency of low-cost switcher

Reduce losses by over 30%, and improve Vin(min) too, on a 34063-based or similar switcher. Read More...

LTC Design Note: Robust 10MHz reference clock input protection circuit and distributor for RF systems

Design a protected 10MHz reference input without degrading phase noise. Read More...

Variable HV power supply employs photovoltaic optocoupler

This unusual topology saved the day when a higher-voltage variable supply was needed. Read More...

Avago Tech Note: Isolated current sensing with ∑-∆ optoisolators

Sigma-delta optocouplers make for accurate isolated sensing, and can trade off speed for ENOB. Read More...

Facilitate oscilloscope debug of small microcontroller systems

A probe-to-the-metal approach is often the best way to debug a small µC system, and here’s some code to help out. Read More...

Avago Tech Note: Fast analog isolation with linear optocouplers

Implement isolated analog signals and current loops with linear optocouplers. Read More...

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