I use this schematic for a 700 watt power supply.output voltage is 36v and current is 20amps.the core is etd44/freq is 50KHZ/primary is 30 turns litz(6*0.55)/secondary is 9 turns litz(22*0.55)
circuit worked but after 1 minute secondary winding become very very hot and i can't use power...
i design this circuit and build it.under no load condition input is 15 and output is 36 without problem.but when i connetct a 6 ohm load out put voltage drop to about 14.5v and output current about 2.4amps.
inductors are self made 31turns/2.5mm gap/er28(pc40 material)55uh
under no load...
i use this schematic to build a half bridge power supply.
but i have some problems and need some helps.
first problem is feedback.i think this feedback is not good beacause whit this feedback transformer produce a noisy sound like"tik-tik-tik"about twice every second.
i read some...