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[Help] Circuit topology to reduce crowbar current at driver

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earthgod2504

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Hi everybody,

I need a circuit that avoid crow bar current at the driver

54656.PNG

Please suggest me circuit that can do such a thing, and it produce smallest propagation delay.

Thanks
 

The IR2104STRPBF is a Half Bridge Controller for the current driver. If you check the data sheet, you will see how it works. Sin título.png
The normal way to obtain a delay in order to avoid a short current is using a delay cell (nand, and, or, etc) to get a deadtime.

Hope will help!
Jesus
 

You are looking to get break-before-make conduction in
the switches. This is done either by simple phasing, or
sometimes with a sense feedback from the final gate to
somewhere back in the drive taper chain. I would not call
the cross-conduction interval "crowbar current", to the
power management / power conversion folks this has a
different meaning (a shunt which when triggered, stays
on past the point where some upstream current limit
trips, saving downstream electronics from overvoltage).
 

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