Large power supplies that operatefrom ac wall voltage havelarge input-filter capacitors. You mustlimit the inrush current to those capacitors.Otherwise, the supply may tripthe ac circuit breaker, or ...

Editor's Note: Here's another take on the transformerless AC line power supply, which finds use in some well-insulated, low-power devices. Our technical reviewer pointed out that C ac should be an ...

Thyristors, three-terminal electronic components with bistable behavior, are used in switching and power control circuits, both in DC and AC regimes. Thyristors are three-terminal electronic ...

This air-conditioner (AC) power saver circuit can control the operation of two separate AC units, reducing energy consumption during preset periods and cutting overall load and electricity bills.

Power-control modules are circuits comprising devices such as silicon-controlled rectifiers, triacs, power transistors, and power rectifier diodes. Power-control modules are circuits comprising ...

To prevent a tragedy like an AC explosion at home, experts advise regular electrical audits, adherence to earthing standards, ...

Part 3 delves into critical equipment for testing today's electronics, and provides updates on circuit-board designs from Part 1. This series installment will address the lab equipment that’s pretty ...

Part 4 focuses on testing for a reflow oven and build of a mixed SMT/through-hole board. This column will address reflow-oven temperature testing. It uses the lab equipment to build the circuit board ...

Abstract: This paper presents a constant power control circuit for a three-stage high intensity discharge (HID) electronic ballast. The three-stage electronic ballast is composed of a boost ...