2016-06-03 - Anthony Smith

Precise over-voltage protection with circuit breaker

Read about a simple circuit breaker that delivers precision over-voltage protection and over-current protection.

2016-06-03 - Marian Stofka

Detect leakage of capacitors, semiconductor switches

The low input-bias current of a voltage-follower op amp enables this simple fixture to measure the leakage current of capacitors.

2016-06-03 - Stefano Salvatori

Enabling a simple ohmmeter with gigohm range

Through the use of an external counter and control circuitry, this system can measure resistances in the tens of gigohms.

2016-06-02 - John Lo

Testing low-current power supplies

Use this simple dual constant-current-load design, which can be built with inexpensive, common parts.

2016-06-02 - Djessas Zoheir

Two transistors make up high-precision, ac-mains ZCD

Here is a simple two-transistor circuit that can accurately detect the zero crossing of the ac mains voltage.

2016-06-01 - Mario Di Guardo, Ivan Massimiani

Exploring digital AC/DC power supply with active clamping

Here's an AC/DC power supply that features an active clamp circuit implementation, which is necessary to reduce over-voltage spikes in…

2016-06-01 - Michael Dunn

High-side current sensing methods

There are different ways to accomplish current sensing on a voltage rail. Learn more about these methods.

2016-06-01 - Stefano Salvatori

Spark current-ratio-to-frequency converter with integrator

Here is a precision integrator that generates a pulse train whose frequency is proportional to the ratio of two input…

2016-05-31 - Mark Thoren

Recycle potentiometers as handy voltage sources

Read about a circuit that recycles old precision potentiometers that have direct-reading scales into useful laboratory "volt boxes".

2016-05-31 - Robert Buono

Incorporate grounded-switch for Topswitch on/off control

Integrating a couple of components to the control pin of a Topswitch switching regulator enables on/off control.