How do make battery eliminator?

Answer 1

a battery eliminator is an electronic circuit which enables the user to run a device which is normally powered by a battery, by using outlet AC power without having to replace a run down battery.

the pros for using a battery eliminator is that the device can run continously without having to replace any battery.

the cons of using a battery eliminator is that the portablity / freedom to move anywhere without trailing cumbersome wires is lost.

moreover the device should have a builtin receptacle to accept power from a battery eliminator.

most importantly the user should preferably use a manufaturer supplied eliminator , since the user then does not have to know all the technical specifications and designs requirements which are needed to make your own battery eliminator.

just for info , the following info is a must to construct a battery eliminator.

1 ) The outlet power supply voltage at the place of use & appropriate plug supply

cord for the same which will be used to connect the eliminator

2 ) The device DC operating voltage & expected current drain in operation

3 ) The appropriate jack plug which will be suitable for the device and the polarity

of the connection , since the output of the eliminator is DC.

4 ) A step down transformer of suitable rating as per points 1 & 2

5 ) Rectifier Diodes , Circuit board to mount the components , Electrolytic cap

of rating as may be required with reference to pt.2

The output of stepdown transformer is fed to the rectifier device which converts the

AC power available from the transformer to DC. A electrolytic capacitor is used to

smoothen out the variations in DC output of the rectifier & make it simulate a constant battery voltage. This description is just for info since it is impossible to give a full construction detail here suitable for any application.