EDN

A guide to using FETs for voltage controlled circuits, Part 2

In Part 1 of this five-part series, we examined FET voltage controlled resistors, basic voltage controlled resistor circuits, and a balanced or push pull voltage controlled resistor (VCR) circuit.
Electronic Design

Current Limiter Offers Circuit Protection with Low Voltage Drop

There are many cases where a power supply needs an internal current-limiter function, usually built using a current sensor, a control circuit, and a pass transistor. The current sensor itself can be a ...
Electronic Design

High-Voltage Integrated Circuits

What are HVICs? High-voltage integrated circuits (HVICs) translate low-voltage control signals to levels that are suitable for driving power switches in high-voltage applications. HVICs also can ...
EDN

A guide to using FETs for voltage-controlled circuits, Part 5

The final part of this series will start with bias servo circuits for automatic set up. The FETs pinch off or threshold voltage can vary widely for the same part number. Depending on the fabrication ...