Electronic load using Op-Amp IC 358

Electronic load using Op-Amp IC 358

In this circuit i using IC 358 and some few components to make a simple constant load. 

The trick here is connecting a dc voltmeter to the non-inverting input of the op-amp to preset the current before connect it to the battery or the super cap. under test.

For more explanation you can watch the video below.

Parts list:

LM358 : https://www.banggood.com/custlink/Dvv3hO51Df
High power resistor: https://www.banggood.com/custlink/K3GvYjHwRm
Digital DC Voltmeter: https://www.banggood.com/custlink/3vmDYL5TDU
Copper board: https://www.banggood.com/custlink/3KDDmMsPSc
MOSFET IRFZ44N : https://goo.gl/35n5Tb 

Potentiometer 100K : https://goo.gl/dKnWCj
Resistor kit (10 Ohm): https://goo.gl/TgSaff

Heatsink: https://www.banggood.com/custlink/D3KGdOSmzf

Circuit:

 

Gerber file:

Download the Gerber file from here: 

https://drive.google.com/open?id=1Lx8xjfkyYPvvzAbA0ponFBYBTQDqrMvU

Video:

For more explanation you can watch the video below 

categories : circuits,Op-Amp Circuits,Testing Circuits