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2kW Full Bridge SMPS at 20kHz

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cupoftea

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Hi,
We were doing a 2kW PSFB off 400V PFC.
But realised the chip shortage may hit PSFB controllers.

I count approx 2 or 3 PSFB controllers on the market, from ti.com and analog (ex Linear)

So will also do plain FB, with simple ubiquitous controller.
Would you say 2kW is the practical limit of a FB at 20kHz?
Vout is +/-160V
 

One can take a push pull output of a standard controller - put it thru some gates and get full 4 channel phase shift outputs - plenty of examples on the net

lower freq's are a good idea for +/- 160V out -
 
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