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Design Ideas

More Design Ideas

Power-supply decoupler protects your UUT

Detect and shutdown reverse polarity or overvoltage before damage occurs. Read More...

Build a digital PLL with three ICs

A counter’s self-presetting feedback loop hunts for the center count. Read More...

Signal-powered switch connects devices

Use a switch to selectively connect a terminal, personal computer, or any other originating device to one of four receivers. Read More...

Convert 1 to 5V signal to 4- to 20-mA output

Precision analog current loop converter uses a matched resistor network. Read More...

Linearize optical distance sensors with a voltage-to-frequency converter

Create the mathematical inverse of an analog voltage by converting it to frequency and measuring the period. Read More...

Use a transistor as a heater

A temperature sensor and a hot transistor hold biological samples at a preset temperature. Read More...

Monitor circuit conserves battery energy

Use a sampled-data technique to lower a monitor circuit’s average power consumption. Read More...

Lamps monitor beat frequency

Synchronize an unknown frequency with a reference to obtain a zero beat by employing a visual monitor for the audio gap surrounding the near-zero Read More...

Use a three-phase rectifier and voltage reducer for offline single-phase supplies

Missing diodes create gaps to allow voltage reduction. Read More...

Simple circuit lets you characterize JFETs

Measure the pinch-off voltage Vp and zero-bias drain current Idss to select matched pairs of JFETs. Read More...

Use a transistor and an ammeter to measure inductance

Bipolar junction transistors transfer a current from a lower-resistance emitter to a higher-resistance collector. You can use this property to Read More...

Condenser microphone uses dc-coupled impedance converter

Eliminate transformers and coupling capacitors in this self-balancing microphone interface. Read More...

Simple sawtooth generator operates at high frequency

Use a digital logic gate to generate an analog waveform. Read More...

Dual regulator handles two input voltages

Use a pair of MOSFETs to switch between 3.3 and 5V regulated voltage. Read More...

Circuit simultaneously delivers square and square root of two input voltages

Perform mathematical computations using analog techniques. Read More...

CMOS gate makes long-duration timers using RC components

Use a common CMOS gate to make long duration timers using low-value RC components. Read More...

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