Grigorium
Newbie level 3
Hello guys,
I am working on a MOSFET full bridge with IR2113. The thing seems to be working but with a problem. MOSFETs have a really long turn-off delay (see the oscilloscope attachment). At low frequencies this is not a problem, however, when I increase the frequency to a few kHz the turn-off delay becomes problematic.
Can anyone please help me with the problem. I have attached the circuit diagram and oscilloscope images.
Thanks,
Greg.
At 4 kHz:
View attachment H_Bridge_4kHz.pdf
At 19 kHz:
View attachment H_Bridge_19kHz.pdf
Circuit diagram:
View attachment H-Bridge_2xIR2113.pdf
I am working on a MOSFET full bridge with IR2113. The thing seems to be working but with a problem. MOSFETs have a really long turn-off delay (see the oscilloscope attachment). At low frequencies this is not a problem, however, when I increase the frequency to a few kHz the turn-off delay becomes problematic.
Can anyone please help me with the problem. I have attached the circuit diagram and oscilloscope images.
Thanks,
Greg.
At 4 kHz:
View attachment H_Bridge_4kHz.pdf
At 19 kHz:
View attachment H_Bridge_19kHz.pdf
Circuit diagram:
View attachment H-Bridge_2xIR2113.pdf