peterl86
Junior Member level 1
Hi guys,
i am making DC-DC converter with following parameters:
Uin: 10.8 - 14.4V
Uout: ~310V
Pout: ~150W
The circuit is H bridge and used transistors are IRF2807. They are controlled with IR2110. Over transistors have
diodes(FR604) to protect them from reverse voltage. Transformer is YE ERL-35 from ATX power supply Codegen 350W.
I am using 12v winding for primary winding. The problem is that when i connect load(two electric bulb 60W series)
voltage drops to ~20V, current on output is very small. I tryed with three different frequencies: 25, 50, 100kHz
and different duty cycle 1 - 20%, but no change. The pwm is generated by mcu(stm32f100). Later i will upload circuit.
Thank's in advance !
i am making DC-DC converter with following parameters:
Uin: 10.8 - 14.4V
Uout: ~310V
Pout: ~150W
The circuit is H bridge and used transistors are IRF2807. They are controlled with IR2110. Over transistors have
diodes(FR604) to protect them from reverse voltage. Transformer is YE ERL-35 from ATX power supply Codegen 350W.
I am using 12v winding for primary winding. The problem is that when i connect load(two electric bulb 60W series)
voltage drops to ~20V, current on output is very small. I tryed with three different frequencies: 25, 50, 100kHz
and different duty cycle 1 - 20%, but no change. The pwm is generated by mcu(stm32f100). Later i will upload circuit.
Thank's in advance !
