need help with power inverter

[babatundeawe]

huy guys! i am very glad to be in this forum atlast. i ve read so many threads posted by talented people here. i really appreciate them all.

please i need help on how to construct an inverter using pic16f877a 50hz pwm with an input of 12v an output of 260v 2000kva. please anybody that can help will be highly appreciated.
my main problem is to generate the pwm 50hz from the micro.schematic and source code (asm or pbp) will do along way to help me. thanks in anticipation

[babalola]

Hi awe,

Are you realy talking about 2000KVA or you mean to say 2KVA?.

Regards,
babalola.

[babatundeawe]

Hi awe,

Are you realy talking about 2000KVA or you mean to say 2KVA?.

Regards,
babalola.

thanks. its a mistake i mean 2kva.

[babalola]

Hi Awe,

Honestly you need to start yourself from somewhere, however i can help with block diagram,but hang on while i try to do that.

Babalola.

[mikeh]

first forget 12 volt current to high 166 amps
for 2kv 48 or 60 volts
i am busy with a inverter at the moment
what you need is 64 steps 32 first half and 32 second half
using ccp1 and ccp2
can supply you basic wave form numbers
you need voltage check amp check tx loss control all done in loop
i use a full h bridge driver to give pure sine wave
mosfet driven.
the pic is quite busy use 20mhz
this is just basic
hope it helps

[Andre_Pretorius]

Hi there seems if this can become very interesting, is there any change of see-ing the H-bridge circuit for the 2Kva inverter

[sudipmuk]

what you need is 64 steps 32 first half and 32 second half
using ccp1 and ccp2
hope it helps

Hi
I have seen PCBs of sinewave inverter using 16F72. They do not have CCP1 and CCP2 , they only have CCP1 . I wonder how they have done it.

Regards
Sudip