T
Wow, Thankyou!, I am guessing that there are multiple cells in the battery, and that there will be a charger for each cell, so many many chargers switching off the full bridge output.?
It may not be, if you take the whole business cycle into account.From an engineering point its a no brainer, but for the sales manager it will be a no no as its will be more expensive then a single unit solution.
Frank
7 kW is a 3 phase input, we routinely design these with just a 6 diode bridge on the front end, and 10uF of film cap 700V, then a 100kHz PWM phase shift full bridge to do the down conversion, 900V mosfets or now SiC 1200V, they only switch 14A, 2 x planar Tx's to give the 7kW out, current doubler out for high currents...
With 10 µF bus capacitor the converter can be operated as a buck PFC.thanks, ..no PFC?....just one phase shift full bridge converter for 7kw?
Right, just a certain PF improvement compared to a bus with large capacitor.I don't think you can have PFC downstream of a 3 phase rectifier?
A problem of your series connected voltage sources. Use phi = 0, 120, 240 degree instead.By the way, does anyone know why the phase currents are not the same in waveform shape in the 3 phase rectifier simulation of post #17?
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