Maker Pro
Maker Pro

Battery Simulation

Hello,

I am try to design a battery simulation to test a lead acid battery charger. My design is similar to one found here: http://www.accelinstruments.com/Applications/TS200/Battery-Simulator-AppNote.html (figure 2A). Other than I used MOSFETs instead of the BJT and alot PMOS is connected in collected parallel (the current sink).

I am having some of problems which I can't really figure out why. The charger will turn on for few seconds and then turns off without then repeat the cycle. Any help please?
 
Welcome adex44yrs,

Give us a circuit diagram of the what you have, it sounds as if the load does not accept the charge so that the charger thinks the battery is full and turns off.

Duke
 
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