Circuit Project Electronic

This is Circuit Auto Fast Battery Charger.
Here is circuit Auto Charger battery 12V will quickly and easily charge most any lead acid battery. When the battery is fully charged, the circuit Relay switches off
Use IC 7805 for power supply here circuit. and IC LM311 control test volt battery .
Read detail in circuit. [...]

Here is circuit controlling the speed of small DC motors,
Easy Circuit use IC NE556 and LM311 and IRF521 MOSFET transistor
Related Links
More Motor Speed Controller
More circuit about IC 556
More circuit by IC LM311
More circuit about Electronic Control
PWM Control Speed Motor 12V By TL494
PWM Motor Speed Controller - DC Light Dimmer by IC LM324
PWM Speed Motor [...]

Introduction
This circuit is for a temperature controlled constant current battery charger. It works with NICD, NIMH, and other rechargeable cells. The circuit works on the principle that most rechargeable batteries show an increase in temperature when the cells becomes fully charged. Overcharging is one of the main causes of short cell life, hot cells pop [...]