ESC

Design Ideas

More Design Ideas

Simple circuit helps to protect a vehicle-reverse camera

Add a delay to prevent short power pulses as you shift through reverse. Read More...

Eight LEDs make a 100-division voltmeter

Use a counter IC to drive two sets of four LEDs. Read More...

Simple circuit controls the rate of voltage change across a capacitor or another load

The output rate of change servos a pass FET. Read More...

LED bar-graph display represents two digits

Novel circuit uses a reference ladder signal based on the most-significant-digit display. Read More...

Polynomial rotation accelerates CRC calculations

This idea introduces a method of CRC calculation that rotates a polynomial instead of shifting data. Read More...

Simple circuit measures optocoupler's response time

Measure the response speed of optocouplers in order to select matching devices. Read More...

Circuit provides visual verification of IR pulses

Use a transimpedance amplifier to drive an LED. Read More...

An LED's intrinsic capacitance works in a 650-mV LRC circuit

The LED and a discrete inductor form an LC tank circuit. Read More...

Circuit provides universal ac-input-voltage adapter

Use a TRIAC and optocoupler to automatically change between doubler and bridge configurations. Read More...

Logic probe uses two comparators

Build a logic probe whose voltage thresholds vary with your circuit's power supply voltage. Read More...

DAC fine-tunes reference output

Adding a DAC and op amp makes a precision adjustable reference. Read More...

LEDs indicate sound level

Build a battery-operated portable meter to measure sound-pressure levels. Read More...

Driver circuit lights architectural and interior LEDs

Hold the current constant and within tolerance. Read More...

Use op amps to make automatic-ORing power selector

Replace diodes with FETs to reduce power loss. Read More...

Charging time indicates capacitor value

A comparator changes state when capacitor voltages are equal during rise and fall, which triggers a time measurement. Read More...

Positive edges trigger parabolic timebase generator

Generate sawtooth, quadratic-parabolic, and cubic-parabolic signals. Read More...

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