Author |
Message |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
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Forum: General CCS C Discussion Posted: Tue Dec 25, 2012 12:42 am Subject: sine PWM inverter code going crazy |
Hey Mike
I've been trying now using 350 as the maximum value duty cycle. The array for now has 292 entreis. NO PREMATURE PULSES FOR NOW. I will continue adding entries and testing. The array will e ... |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Sun Dec 23, 2012 12:52 pm Subject: sine PWM inverter code going crazy |
hey guys
I did what mike suggested. The problem still exists at higher duty cycles. I also checked the chip. It's a 2009 one.
I will now move to eight bits and will feed you back if the problem pe ... |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Sun Dec 23, 2012 3:23 am Subject: sine PWM inverter code going crazy |
Hey guys and sorry for being late. I Was a little bit busy.
Here's what happens when i use T's code:
http://www.4shared.com/photo/i7OrhWns/new.html?
The fifth duty cycle gets smaller. AND, i ... |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Thu Dec 20, 2012 2:46 pm Subject: sine PWM inverter code going crazy |
Guys I went with your suggestion but still having the same problem. I will try T's idea of doing everything n the main loop. Will feed you back with results. If any other ideas please Let me know |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Wed Dec 19, 2012 4:32 pm Subject: sine PWM inverter code going crazy |
Ttelmah, try this. i hope it will work
http://www.4shared.com/photo/ZtYzIMm5/DSO_Proteus_32-point_array.html? |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Wed Dec 19, 2012 4:22 pm Subject: sine PWM inverter code going crazy |
mike
wether fifth or first. there i a problem that i must solve. please help me work it out
thanks |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Wed Dec 19, 2012 12:39 pm Subject: sine PWM inverter code going crazy |
Mike
Could be |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Wed Dec 19, 2012 12:37 pm Subject: sine PWM inverter code going crazy |
T check this
http://www.4shared.com/photo/HSMUphwe/Untitled.html? |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Wed Dec 19, 2012 11:44 am Subject: sine PWM inverter code going crazy |
Mike, I treated the inverting point with T's code. Inversion is now fine.However, thi is not the main problem. The main problem is what i showed in the photo linked above. "The fifth PWM problem& ... |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Wed Dec 19, 2012 11:09 am Subject: sine PWM inverter code going crazy |
Hey Ttelmah. Thanks for the code. I appreciate what you are trying to. I did understand your point before but i didn't program it because i'm trying to fix the problem shown in the attached photo abov ... |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Wed Dec 19, 2012 12:13 am Subject: sine PWM inverter code going crazy |
from both real scope and proteus simulation. i get the same results. thats why i'm sure proteus is correctly simulating my case. |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Tue Dec 18, 2012 3:52 pm Subject: sine PWM inverter code going crazy |
As for Proteus, well i do have hardware and I've been comparing results. in my case Proteus is correctly simulating. |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Tue Dec 18, 2012 3:46 pm Subject: sine PWM inverter code going crazy |
Here's the code Mike
#include <12F683.h>
#device adc=10
#FUSES NOWDT //No Watch Dog Timer
#FUSES INTRC_IO //Internal RC Osc, no CLKOUT
#FUSES CPD //Data EEPROM Code Protected
#FU ... |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Tue Dec 18, 2012 2:19 pm Subject: sine PWM inverter code going crazy |
hey guys
I went with T's suggestion and reduced the points to 32. One array of 32 points only.
Here's how PWM looks!!
http://www.4shared.com/photo/HSMUphwe/Untitled.html?
WHY the fifth pwm ... |
Topic: sine PWM inverter code going crazy |
GOBER
Replies: 87
Views: 178422
|
Forum: General CCS C Discussion Posted: Tue Dec 18, 2012 1:20 am Subject: sine PWM inverter code going crazy |
Hey temtronic
yeah T's is totally right in his point.
As for the other three '40-points', well they are to be used later in feedback. My method of feedback is to read the output (220v), and then ... |
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