Hello all,
We can see in many half bridge circuits , there is a capacitor connected to the middle of half bridge(between 'Source' of High mosfet,and 'Drain' of Low mosfet) to power the driver IC , now the question is :
if I want to get 20ma current, what will the value of capacitor connected to the middle of half bridge when voltage =400v , freq=30khz ? I know the way to calculate capacitance and current in AC circuit, but here in the middle of half bridge, voltage is DC near square wave.
Thanks a lot.
attached: example schematic
V=400v
Frequency: 30khz
Question: what is the value of CSNUB if I want to get 20ma current?
We can see in many half bridge circuits , there is a capacitor connected to the middle of half bridge(between 'Source' of High mosfet,and 'Drain' of Low mosfet) to power the driver IC , now the question is :
if I want to get 20ma current, what will the value of capacitor connected to the middle of half bridge when voltage =400v , freq=30khz ? I know the way to calculate capacitance and current in AC circuit, but here in the middle of half bridge, voltage is DC near square wave.
Thanks a lot.
attached: example schematic
V=400v
Frequency: 30khz
Question: what is the value of CSNUB if I want to get 20ma current?
Last edited: