Low Power 5V Switching Regulator

Low Power switching Regulator

This simple switching regulator circuit have 5 V output, the input provide by a 9 V battery. It having 80% efficiency and 50mA output capability.

How simple switching Regulator works:
While Q1 is actually on, its collector voltage increases, delivering current through the inductor. The output voltage goes up, triggering A1’s(precision op amp LT1013) output to rise. Q1 cuts off as well as the output decays through the load.

The 100pF capacitor would ensure clean switching. The cycle repeats when the output falls low enough for A1 to turn on Transistor Q1. The 1µF capacitor ensures low battery impedance at high frequencies, preventing sag during switching.

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 dc dc converter 5v switching power supply 5v switching regulator dc to dc converter simple switching regulator switching regulator circuit

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