Design Ideas

More Design Ideas

Turn negative regulator “upside-down” to create bipolar supply from single source

This simple regulator hookup is perfect when you need a non-critical secondary voltage of opposite polarity. Read this new DI from Stephen Woodward. Read More...

LTC Design Note: Lower power op-amp: Utility sine wave

Learn how micropower parts running at 3V or less can nonetheless generate a very high purity sinewave. Read More...

Improve RFID by killing noise

RFID is great technology, but noisy power and other aggressors can ruin performance. Use this trick to solve the problem, for RFID or any RF or Read More...

LTC Design Note: Low power op-amp: Low power filter, headphone driver revisited

With great GBW:power ratio and low voltage operation, these op-amps enable many applications, including audio & headphone drive. Read More...

Double µC’s PWM frequency & resolution

Here’s a very simple way to increase PWM frequency and resolution. Read More...

LTC Design Note: 60V Low Iq buck has adjustable gate drive

High efficiency, low Iq, and its signature programmable gate-drive voltage, distinguish this dual-buck controller. Read More...

SEPIC/Ćuk converter sprouts second output

Here are the devilish details for creating a two-output SEPIC-Ćuk converter. Read More...

LTC Design Note: High-voltage, high-efficiency, positive-to-negative converter

A highly versatile converter, featuring programmable frequency, a 150V input range, and outputs to –60V. It simplifies the design of automotive and Read More...

Multi-brightness LED controller draws zero off-current

This quaint design offers up a battery-operated LED lantern with multiple brightness levels. Read More...

LTC Design Note: High efficiency, 15V rail-to-rail output synchronous step-down regulator can source or sink 5A

The LTC3623 step-down regulator enables compact POL solutions that can source or sink 5A without significant thermal mitigation. Power capability is Read More...

LTC Design Note: 560V Input, no-opto isolated flyback converter

This switcher operates at a wide input voltage range of 18V to 560V, delivering up to 15W of isolated output power. It requires no opto-coupler, and Read More...

1-bit PROM programmer shows status

The intuitive user interface of this PROM programmer is bound to impress. Read More...

Simple 3.3V power backup supply: ADI Power by Linear Design Note

Simplify backup supplies by employing low cost electrolytic capacitors as the energy storage component, leveraging higher energy density by running Read More...

One wire controls LCD module

This one-wire LCD interface DI generates all the signals required to control the ubiquitous character display. Read More...

Bang-bang photovoltaic regulator needs no magnetics

You don’t always need a sophisticated MPPT controller to extract and regulate photovoltaic power. This elegant little circuit may do just fine. Read More...

LTC Design Note: Bidirectional DC/DC regulator and supercapacitor charger

Combine a supercapacitor charge controller with a robust DC-DC to make a wide input-range supply with transient ride-out. Read More...

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