Search found 11 matches

Thanks for the advice people.

PCM thanks for pointing that volts error out to me. Brilliant!

I am using the corresponding adc values to compare so the pic doesnt have to do unnecessary math calc ...

I need to measure the battery voltage.

I have the appropriate voltage divider network in place and when the battery is at its peak 14V the voltage on adc is +5V.

How do I get a read out on the a ...

Hi All,

I am trying to measure the voltage across a battery using the adc using a voltage divider network. Pic 18f4550 +Vref is +5v -Vref is ground. My ADC is not working any ideas whats wrong?

...

Hi all,

I have been doing research and found out that i can use the FULL Bridge setting to get what i need.

#int_TIMER2
void intrpt_service(void)
{
if (forward == 1 && ...

Hi PCM,

PMW frequency i want is 5KHz.

I have used the formula i get the PR2 value to be 199.

setup_timer_2(T2_DIV_BY_1, 199, 1);

Will the above interrupt at every PWM cycle?

The pwm frequency is 5Khz.

Hi PCM,

I have read the thread you have posted with regard to what I was trying to accomplish. I see that Ports can only be set if we disable the PWM.

I am using PWM techniques to control MOSFE ...

I tried your way and i am not getting the desired result.

What i need to happen is for 49 cycles P1A must be active and P1B must be zero and from 50 - 99 cycles P1A must be zero and P1B must be ac ...

Hi all,

I have a slight problem regarding the toggling of the PINS above.

Here is what i need to do:

My PWM is setup and half bridge is working. I have a 100 step look up table.

I want ...

Thanks

I have tried it and it works!

Much appreciated!

Hi All,

I have a problem making the half bridge PWM work on 18F4550.

#include<18f4550.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)

void main()
...