Pravin Gosavi
Member
Hello everybody. I have designed 3 Phase inverter using 3 half bridges with a PIC microcontroller and a step up transformer is used to raise the voltage. Now for charging the batteries we supply mains back to the transformer. The 3 MOSFETs which are connected to the positive terminal of the batteries are kept off, their body diodes work as rectifier and the mosfets which are connected to the negative terminal of the batteries are given pulses. That's the theory I read somewhere.
Now my questions are-
How to the pulses should be? All ON at the same time or will it short the circuit? Or ON one after other?
And if the pulses should be with delay and without overlapping, do I need to synchronise them with mains or should I send the pulses with duty cycle control according to the charging current and not consider synchronisation? Thanks!
This is the bridge configuration I used-
https://www.google.co.in/search?q=3...AUIBigB&biw=1366&bih=662#imgrc=GULXzZmg_X2rUM:
Now my questions are-
How to the pulses should be? All ON at the same time or will it short the circuit? Or ON one after other?
And if the pulses should be with delay and without overlapping, do I need to synchronise them with mains or should I send the pulses with duty cycle control according to the charging current and not consider synchronisation? Thanks!
This is the bridge configuration I used-
https://www.google.co.in/search?q=3...AUIBigB&biw=1366&bih=662#imgrc=GULXzZmg_X2rUM: