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Author Topic: Sinewave Inverter With Pic  (Read 36920 times)
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alejandro
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« on: November 22, 2005, 02:12:40 14:12 »

I am looking for a project of a dc/ac sinewave inverter with pic, if anybody can help


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picstudent
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« Reply #1 on: November 22, 2005, 04:40:57 16:40 »

this file is from the cekit magazine...
 
http://kittecnologia.com/download/industrial/down_industrial.php
 
 
i'll scan the pages next week for you.
 
 
Shocked  i hope this code will be useful to you
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alejandro
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« Reply #2 on: November 22, 2005, 07:04:17 19:04 »

Thanks a lot picstudent, I´ll test it.
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Kabron
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« Reply #3 on: November 24, 2005, 09:37:17 09:37 »

Look also Microchip Application notes for PIC based UPS project.
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alejandro
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« Reply #4 on: November 24, 2005, 03:40:26 15:40 »

thanks too. I saw that project but I m looking for somethin using picbasic.
I 'm fighting with some designs with push pull and a 16f73 but couldnt get a good
waveform
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Kabron
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« Reply #5 on: November 25, 2005, 10:18:26 10:18 »

U can use MC3PHAC chip from Freescale(free samples!) with PIC as master controller. I now developing drive for high-end vinil turnable with this combination. If any interest arise I'll upload the details.
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alejandro
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« Reply #6 on: November 25, 2005, 01:13:16 13:13 »

Yes, please up load it

thank you
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Kabron
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« Reply #7 on: November 28, 2005, 11:19:00 11:19 »

OK Just wait a while I clear some shit.
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acat_lm
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« Reply #8 on: November 30, 2005, 11:05:47 11:05 »

One more reference on circuitry of the inverter:
http://www.irf.com/technical-info/refdesigns/iradk31.pdf
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Kabron
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« Reply #9 on: December 01, 2005, 12:47:04 12:47 »

Not cleared yet. Working with real MC3PHAC withouth powerstage. Any questions welcome.
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alejandro
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« Reply #10 on: December 15, 2005, 04:55:42 16:55 »

thanks a lot for share your project Kabron
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sohel
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« Reply #11 on: March 19, 2007, 11:43:25 11:43 »

i have a product and software with pic 16F72 , but i cant share it bcause its my buisness product.
pure sinewave 50HZ with pic16f72.
« Last Edit: March 19, 2007, 12:01:38 12:01 by sohel » Logged

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Taner
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« Reply #12 on: March 22, 2007, 01:43:56 13:43 »

I made a sine wave inverter with PIC16F876A,
Input: 12V DC (10-16V), Output: 220V AC,50Hz, Output power: 500W
Here is the CCS C code and circuit of the sine wave inverter:
http://www.4shared.com/file/216893275/9a3044e6/PIC16_Inverter.html
« Last Edit: February 07, 2010, 03:08:17 15:08 by Taner » Logged
sohel
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« Reply #13 on: April 14, 2008, 09:26:43 21:26 »

only sine and modified inverter simulation with proteus. only video  direct download

http://rapidshare.com/files/107494510/matrix.rar
« Last Edit: April 14, 2008, 09:38:35 21:38 by sohel » Logged

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Bacra2k
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« Reply #14 on: April 15, 2008, 03:34:53 03:34 »

this file is from the cekit magazine...
 
http://kittecnologia.com/download/industrial/down_industrial.php
 
 
i'll scan the pages next week for you.
 
 
Shocked  i hope this code will be useful to you


Hi picstudent
Can you upload scanned documents from magazine?

Thanks
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jojora
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« Reply #15 on: November 07, 2008, 01:08:02 13:08 »

Hello
Anyone has the complete list of the parties, because in the Schematic some values are missing.

Thanks

jojora
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jojora
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« Reply #16 on: November 10, 2008, 02:20:28 02:20 »

Hi, sohel, I want to know much will it cost to the investor but output at 60Hz
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junaid_766
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« Reply #17 on: November 13, 2008, 06:21:54 06:21 »

I made e sine wave inverter with PIC16F876A,
Input: 12V DC (10-16V), Output: 220V AC,50Hz, Output power: 500W
Here is the CCS C code and circuit of the sine wave inverter:
http://www.4shared.com/dir/2136086/3afe23e/sharing.html
thanx for sharing Schematic
but there are some values missing and connection of some comparator are also missing can u upload the complete schematic plz
« Last Edit: November 13, 2008, 06:22:45 06:22 by junaid_766 » Logged
dennis78
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« Reply #18 on: November 14, 2008, 11:52:20 23:52 »

Atmel AVR model ATtiny26 has nice hardware built-in PWM generator for driving bridge's circuits with dead-time generation. I think that it can be good platform for your project.
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sohel
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« Reply #19 on: November 15, 2008, 01:40:56 13:40 »

there are many wayes to build sinewave inverter without microcontroller. some cmos or ttl and eprom, dac

for who want to see circuit with pic16f72.
http://rapidshare.com/files/163986365/scamitic.rar

u need to get topology thats it.
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Walkura
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« Reply #20 on: November 15, 2008, 05:57:41 17:57 »

I fully agree with Sohel on this .
Although microcontrollers offer the possibility of pimpy add-ons they are by no means needed .
You can generate that pwm easily with a few opamps or even with some standard pwm generator .
For instance the setup for class d audio pwm generation .
Even the good'oll SG3525 can generate that pwm and is capable of adjusting the dutycycle according to your feedback loop .
Although microcontroller might seem the way '
you should ask yourself the question isn't programming just a longer way to the same goal .
To be honest i wouldnt be suprised when a analog setup outclasses the microcontroller bigtime in speed of feedback etc .
Afterall there wont be any calculations to be done no capture and compare you just feedback your output to your pwm generator (isolated ofcourse ) the reaction is instant (almost)
Maybe it sounds *stoneage* but you should be able to do that with a few opamps and a handfull of discrete components Smiley
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junaid_766
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« Reply #21 on: November 15, 2008, 07:12:45 19:12 »

I made e sine wave inverter with PIC16F876A,
Input: 12V DC (10-16V), Output: 220V AC,50Hz, Output power: 500W
Here is the CCS C code and circuit of the sine wave inverter:
http://www.4shared.com/dir/2136086/3afe23e/sharing.html


Can anyone explain the working of the above circuit ...plz
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alien
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« Reply #22 on: November 15, 2008, 08:05:14 20:05 »

Hi sohel,

The hardware schematic you provided is the one many people are using india,I know of many companies here including me who developed software around this hardware....in this I am using Spwm frequency of 6.4Khz.This design also uses BOOST PFC charging by switching lower mosfets @ 15Khz.
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sohel
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« Reply #23 on: November 15, 2008, 11:52:41 23:52 »

please help us with ur firmware and idea.  thanks.
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alien
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« Reply #24 on: November 16, 2008, 08:56:45 08:56 »


I am extremely sorry as I can not share the code and other details because its a commercial design with some commitments,but still I can give some hints...bythe way ...Sohel as you already own the code then you should be well aware of how this design works?Huh

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