500 Watts DC to DC converter, 100 Khz Switching Frequency
500 Watts DC to DC converter, 100 Khz Switching Frequency
(OP)
I am in search on how to determine the primary and secondary conductor sizes for a 500 Watts, 100 KHz switching frequency, DC to DC converter. The configuration of the DC to DC converter will be a push pull configuration Circuit. A 12 volt DC voltage will be utilized for the primary side of the high frequency Converter. The secondary voltage will be 370 Vpp. I am considering to use a transformer wound with litz wire. I will be selecting the core of the transformer and the lintz wire. Can anyone advice on how to proceed on the calculations to achieve the above mentioned task?





RE: 500 Watts DC to DC converter, 100 Khz Switching Frequency
Keith Cress
kcress - http://www.flaminsystems.com
RE: 500 Watts DC to DC converter, 100 Khz Switching Frequency
The book by Snelling I mentioned is the top of Ferroxcube's reference list on page 56, and another book by the same author takes second place: draw you own conclusions about the quality of Snelling's work. There are quite a few other books listed which are worth at least checking out.
FWIW, at 500W from 12V at 100kHz you will probably be better using a tape or foil LV winding.
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If we learn from our mistakes I'm getting a great education!
RE: 500 Watts DC to DC converter, 100 Khz Switching Frequency
RE: 500 Watts DC to DC converter, 100 Khz Switching Frequency
Get litz wire, or parallel litz wire to get the cir-mils you calculate.
Or do as OperaHouse suggested. A 12VDC to 120VAC sinewave inverter will have a first stage output voltage of about 185VDC. A 12VDC to 230VAC sinewave inverter will have a primary stage very close to what you're looking for.
RE: 500 Watts DC to DC converter, 100 Khz Switching Frequency