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

Testing Power Converters Using a Liquid-Rheostat Dummy Load

As part of a power electronics design project involving a 3.6-V dc-dc converter, it became necessary to test and accurately characterize the planar transformer shown in Fig. 1. Transformer operating ...
Electronic Design

Program a PIC Processor In-Circuit Using a 3.3-V Supply

Many PIC processors require 5-V power while being programmed, yet battery-powered systems may contain low-voltage devices that will be damaged at voltages above their maximum voltage ratings. In ...
Nature

Use of the Silicon Resistor in the d.c. Stabilization of Transistor Circuits

IT is well known that changes in the d.c. characteristics of transistor amplifiers with temperature are particularly severe, and tend to limit the range over which these devices can operate. The d.c.
EDN

A guide to using FETs for voltage controlled circuits, Part 1

Editor’s note: I am so happy that there are still companies around that create precision, discrete transistors in our industry; Linear Integrated Systems is one of the best I have encountered. There ...