Charger for Car Battery

charger for car battery

Scheme chargers for car batteries are quite common, and each has its own advantages and disadvantages. Most of the simplest chargers schemes built on the principle of a voltage regulator with an output node, collected on thyristors or power transistors. These schemes have significant shortcomings – the current charge is not constant and depends on progress in battery voltage.

A large number of car battery charger schemes is not protected against short-circuit output, which leads to the breakdown of output power components. The proposed car battery charger scheme is free of these shortcomings, is quite reliable (developed in 1995 and produced in amounts of about 20 copies, never broke down) and is designed for amateurs, “the average level.”

The Charger for car battery circuit provides a charging current up to 6A, the control current and voltage with a dial indicator, short circuit protection and automatic shut-off after a specified time using a timer. The Charger for car battery circuit consists of a sawtooth voltage shaper (transistors VT1, VT2), the comparator DA1, signal amplifier with a shunt clamp for operational amplifier DA2 and output power thyristors VD5, VD6, which are mounted on a small radiator, in which we can use a metal enclosure.

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: car battery charger circuit car battery charger schemes chargers for car batteries chargers schemes

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