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I 've put the schematic on the post .It is a halfbridge but it mine is a full bridge can someone pliz send me a schematic of something that proved to be working.
can someone please send me a schematic of a mosfet full bridge of ir2110 that works because I have connected the bridge as shown in the application note an978 but the circuit bridge is not working .I have tested the circuit by sending a signal from the microcontroller and testing the switching...
I'M HAVING A PROBLEM WITH LOOKUP VALUES IN THIS PROGRAM IF I INCREASE THE VALUE IN STEPCOUNT TO 200 AND INCREASE THE NUMBER OF LOOKUP VALUES TO 200 THE MPLAB SIMULATOR DOES NOT SHOW CHANGES OF DUTY CYCLE WHEN PR2 MATCHES TIMER 2.When the value initially loaded to the temporary register is...
I would like to ask how the other negative half cycle is produced and if the interrupts are used to load values to ccpr1l or if it is used to change from positive to negative half cycle of the sine wave.
CAN YOU PLEASE HELP ME ON SINUSOIDAL PWM .Is the value of ccpr1l loaded by an interrupt service routine of tmr2 or there is need to use another timer . I want to get a 50hz sine wave therefore should I use tmr2 to change the duty cycle.how am I going to determine the 50Hz frequency in my code...
Can you please help me with the formulas to design a simple lc filter inductor and capacitor values .The switching frequency is 20khz and cutoff is 5khz .The out put frequency should be 50khz.
I want to design two full bridges for a dc-dc converter and dc-ac inverter of a 1.5kva inverter how many mosfet should I put in each bridge as I have heard other saying that there should be a combination of four groups of mosfets .In each group there will be 8 mosfets in parallel.Some are...
My program is varying duty cycles taking them from a lookup tgable therefore it is difficult to change ccp1rl at the same time changing ccp1con and the signal is at 200khz therefore the resolution is to be about 6 bits so how do I set these in my program.
Ihave written this code .Iwant the ccp module to generate 0.5 duty cycle signals at 200khz in the half bridge mode but after simulation I am failing to get the required signal at the output.
TITLE "PWM based pulse generator"
#INCLUDE P16F887.INC
BANKSEL CCP1CON...
I intend to use the pic16f877 in either asm;proton or basic code .the first bridge will be controlled by two alternating signals at 0.5 duty cycle and frequency 200khz and the other at 20khz with 2 sinusoidal pwm outputs which are 180 degrees out of phase.The code is required for a pure sine...
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