Isolated dc-dc converters are prone to excessive in-rush current, but a small soft-start circuit can solve the problem and limit that...

A microcontroller's internal ADC was inadequate to measure its own supply rail, so a circuit using standard discrete components was devised to do this with just one pin of the IC.

Feb 21, 2017

This simple approach allows all low-frequency attenuator parameters for T pads and pi pads to be computed from just three measurements of dc resistance

The micro-programmed machine approach offers important performance features such as speed, but it is tedious and error-prone. This Visual Basic 6 GUI automates and eases the process.

Dec 15, 2016

This basic low-power driver, based on a few standard discrete components, can supply a variety of LED types and loads.

Low-range current (coulomb counting) measurement is a challenge when the associated voltage is relatively high, but a...

A string of D-flip flops configured as a counter can be used to establish the initial frame synchronization needed to decode...

This model yields accurate analysis of silicon diodes, avoiding the complex iterative calculations for determining voltage drop...

Measuring long-period signals and translating them to low-frequency RPM is challenging, but a circuit built of medium-scale ICs will do so—without a microcontroller or firmware.

A transformerless ac-dc supply can provide dc power for light loads using a capacitor's reactions as a current-limiting element.

A standard circuit for extracting the square root of an analog signal has accuracy limitations, but adding some basic circuitry in a feedback topology can increase performance at low cost.