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Dear all,
I need to generate PWM signal with dsPIC33FJ64GS610 for generating PWM signal. I am using the following code but failed to get any PWM output. It would be nice if anyone come forward with any advice.
#include "p33FJ64GS610.h"
/* Configuration Bit Settings */
_FOSCSEL(FNOSC_FRC)...
Hi,
I am using dsPIC33J256GP710 for PWM generation. As this device doesn't support any built-in PWM functionality, I am using the output compare PWM mode in this regard.
I am operating the mcu at it's highest speed which is 40MHz. Now I need to generate PWM with variable frequency from 600KHz...
Hi All,
I am using dsPIC33FJ256GP710 for PWM generation. As this particular MCU doesn't support any direct PWM mode, I am using the Output Compare PWM mode for generating two PWM signals from OC1 and OC2 pins. The frequency and duty cycle for the two PWM are same.
Here's the code:
// Initialize...
I am using two PWM amplifiers for amplifying two PWM signals which are 90degree out of phase. Both the amplifiers are run from the same dc power source and common ground. I am providing the PWM signals from function generator.
Now the problem is- in the output end the rising and falling of one...
Hi,
I'm using Explorer16 board, with dsPIC33FJ256GP710. It seems like this MCU doesn't support any direct way to generate PWM signal and I am not in the position of changing my MCU now. But the datasheet says I can use the Output Compare mode in this purpose. Could anyone please help me with...
Re: 600kHz PWM Amplifier
Hi,
I have implemented the circuit as you referred. In simulation it was working fine, but in real case it's not.
When I add the PZT which has a capacitance of 14nF, the output gets totally flat like a dc signal. Could you please tell me how I can get a pulse of same...
Hi,
I am a beginner in using MCU. I am using a dsPIC33F MCU for a project. I loaded my firmware in my MCU and it works fine. The problem is I have lost the firmware file in my PC. Is there any way to retrieve the code from my MCU?
thanks a lot in advance
Re: 600kHz PWM Amplifier
Hello,
Thanks a lot for the simplified circuit. Did you simulate it? I have made the same schematic in OrCAD but the output is not even close to my desired result. Would you please analyze the circuit once again.
kind Regards
Re: 600kHz PWM Amplifier
I have simulated the same circuit as referred here. At 6 kHz it works fine though with some distortaion and ringing effect. But at 600 kHz the output is far away from the desired one. I am totally inexperienced about circuit design. Could you please help me to find a...
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