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Boost converter RHPZ

cupoftea

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Hi,
Sorry , got caught out without Basso book...
Doing Boost for 5vin, 24vout, 3.75Aout, 350kHz, L = 5.6uH, synchronous.

RHPZ = [R(1-D)^2]/L
Please could i confirm the above is RHPZ frequency?, obviosuly in radians per second.
It comes out as 7.9kHz, higher than i thought it would.
 

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