PIC16F72 Code and schematic for sine wave inverter.

[saarcgsm]

(push switch) mens push to on OR push to on\off ???

Yes soft touch?

 

[judfid]

Is the signal active low (does the mosfet switch on when the signal is low)

 

[shajansyed]

site is good
Iam looking for circuit diagram of sinewave inverter

 

[pranam77]

A complete technology of PIC16F72 based inveter design with all the required files is available on the same thread post #99 by "MRahman". https://www.edaboard.com/threads/150224/#post1008177
Cheers

 

[deva]

Is ur fusebit setting correct

 

[segunbabs]

I have this file, however, I haven't tested the entire thing.

I have constructed the circuit and it worked very perfectly.
I only used the controller circuit, i buffered the 2volts signal from the PIC with TLP250 and fed it into IR2110 accordingly.
I have been using it for 5kva and above up to 20kva, 192vdc. The code is superb and has never disappointed.
:grin::grin::grin::grin::grin::grin::grin::grin::grin::grin::grin::grin::grin::grin::grin::grin:

- - - Updated - - -

U do not need to stress urself about conversion, just open the asm file with pic programmer software already installed on ur PC, u will see all the hex code.U will need to build JDM programmer for yourself or buy one .

 

[Tipu606]

@segunbabs
so at last something works!!
"just open the asm file with pic programmer software already installed on ur PC, u will see all the hex code"
can you please explain in detail how we get the hex code from asm file?
regards

 

[kabiru]

I think the asm file has to be compile first using compiler before you get your hex file...

 

[keibbow]

when i simulate the code with Proteus it works i see the pwm signals but when i build the circute it does.nt work,can someone tell why it does'nt work?

 

[pradeep.g.belchada]

what problem u face in the circuit i also made it it works

 

[keibbow]

That s good one, which of the code did you used?

 

[keibbow]

Hello everyone, today i rebuid my circute and it seems to work but in charging mode,when i power the circute my alarm beeps pin 23 (RB3) comes one then pin 24(RB4) blinks 6times then buzzer stops,then delay for some seconds and pin27(RB6) start to blink continuously ,,,pin 11 and12 start to oscillate. but i did not connect pin5 of the pic , what is the minimum voltage needed at pin 5 ?

 

[OBIALOR]

Hello Segun, you said that you buffer the 2v with tlp250,remember that is the high drive what of the low drive?

 

[pnjbtr]

you said that you buffer the 2v with tlp250,remember that is the high drive what of the low drive?

We need almost double volts for high side mosfet,if we compare with lower side in H-BRIDGE circuit.
If we drive lower side with 5 volts,then we need 10 volts for upper(high) side.
For exact voltage we can see data sheet of FET and observe vgs(voltage gate_source).
For high side, we need boost trap circuit with(cap and diode).
Either we are driving high side with fet drivers ic like IR2110,or with bipolar transistor.

.

 

[israel7732]

hi all. pls what is the transformer voltages to wind? does this inverter charge the batteries at a constant current? what is the charging current? thanks to all.

 

[keibbow]

yes ,the inverter works now ,but remember that this inverter doesn't work without the feed back loop, my special thanks to segunbabs and also to M Rahman who share his work to this forum for everyone to learn and know the beauty of electronics.

 

[RushikeshPatil]

the file that Tahmid posted has only the .asm file
how to convert it to hex code file?

**********Compiling .asm to .hex using MPLAB IDE for PIC Microcontroller*************

see the link https://www.youtube.com/watch?v=D9ghkyLe7pI

 

[Tipu606]

Hi RushikeshPatil
thanks very much indeed for the youtube link !

 

[keibbow]

i think there is another problem with this inverter, and the problem is charging system may be i did not get it right but the inverter seems not to be charging because when ever in connect it to mains supply mains on LED comes on , after some seconds the charging LED start blinking continuously when ever i use my amp meter to check for the charging current i see zero amps and i can here only tik tik tik sound from the transformer can someone figure out this problem for me please why it is not charging but the inverter is working fine....

 

[RushikeshPatil]

does the relay give power to transformer (does relay bypass the power to transformer) you say the transformer make noise ("can here only tik tik tik sound from the transformer") it means your transformer gets the supply from relay means relay works with its signal from PIC means there is no problem in this section.
Does you connect any other charging control ckt between relay and transformer, if then remove it.
The problem should be in your transformer check it how much amp does he got and what is the amp of battery you are charging