Low Power Regulated DC to DC Converter

low power dc to dc converterThis Low power regulated dc to dc converter circuit obtained by adding a flyback circuit to a square wave oscilator.

This dc dc converter circuit operating at a frequency of 20 kHz to minimize the size of L1 and C2. Regulation is achieved by zener diode D2. Maximum current available before the converter drops out of regulation is 5.5 mA.

Parts list :
R1, R2 : 300K
R3 : 560K
R4 : 100K
R5 : 10K
Rset : 100K
L1 : 2mH
C1 : 470pF
C2 : 10uF
D1 : 1N914
Q1 : 2N4403
IC : L161

Power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.

Tags: 5v to -12v dc dc converter dc dc converter circuit Low power dc to dc converter Regulated DC to DC Converter

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