I know there have been many posts about this issue but as I scroll them over, they're years old and I'm getting confused from reading so many threads. So I decided to start a new one instead.
I'm trying to build a Full H-Bridge Inverter for a school project. The description is as follows
1. The H-Bridge consisted of 4 IGBT (IRG4PC40U) driven by 2 IR2110.
2. The high input and low input for IR2110 is from two pins of Arduino PWM output.
void(loop) {
digitalWrite(3,HIGH);
digitalWrite(9,LOW);
delayMicroseconds(x); //x is 62, to produce 8Khz
digitalWrite(3,LOW);
digitalWrite(9,HIGH);
delayMicroseconds(125-x);
}
3. At first, I used 0,47mikrofarad electrolytic capacitor for VB to VS pin on IR2110, as I read about bootstrap capacitors, I changed it to 1mikrofarad and it is still not showing the waveform output but the voltage is 25V, while I got the waveform output from the LO pin at 9,2V
4. My friend suggested to use CD4049 to the LO pin of IR2110 and use it to activate the gate, replacing the HO pin. Will it work?
What could be the problem?
Any responses would be greatly appreciated.
Thanks and regards.
I'm trying to build a Full H-Bridge Inverter for a school project. The description is as follows
1. The H-Bridge consisted of 4 IGBT (IRG4PC40U) driven by 2 IR2110.
2. The high input and low input for IR2110 is from two pins of Arduino PWM output.
void(loop) {
digitalWrite(3,HIGH);
digitalWrite(9,LOW);
delayMicroseconds(x); //x is 62, to produce 8Khz
digitalWrite(3,LOW);
digitalWrite(9,HIGH);
delayMicroseconds(125-x);
}
3. At first, I used 0,47mikrofarad electrolytic capacitor for VB to VS pin on IR2110, as I read about bootstrap capacitors, I changed it to 1mikrofarad and it is still not showing the waveform output but the voltage is 25V, while I got the waveform output from the LO pin at 9,2V
4. My friend suggested to use CD4049 to the LO pin of IR2110 and use it to activate the gate, replacing the HO pin. Will it work?
What could be the problem?
Any responses would be greatly appreciated.
Thanks and regards.
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