- Sat Jul 29, 2017 4:26 am
#195686
hi,all.The buck circuit using half-bridge will burned after power on if no pwm in.Two MOSs and IR2103 burned.But if there is 100khz 50% pwm ,the circuit can work normally. If no pwm in,HIN and LIN are high level,the bootstrap capacitor can not charge. So i think no MOS can be on. However,the fact is my circuit is burned.Sadness.
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