Hi folks.
So I recently were talking here about making an smps out of some leftover BJT's , after some failures and problems to drive it , i think i will try my hand at making a smps out of components dedicated for such use.
Since I have a IR2110 chip already , i google a schematic based on this driver chip and found some good looking schematics , so i will post them here and ask what do you think.
basically all i need is the oscillator chip SG3525, and a few resistors and diodes.
also , what would change if I attached the float capacitor not to the middle point of the smoothing capacitors but to the ground ?Because if I understand correctly now that the transformer primary is tied via the capacitor to the middle of the rectifier capacitors the mosfets drive the primary only half the voltage of the rectified mains , If I would attache the capacitor to the ground the mosfets would drive the capacitor to the full rectified voltage correct? the power output would be larger , why is this not done here for example?
I plan on using IRFP 460 as drivers , If i recall correctly they were 400 volt devices.
I used a red arrow in the schematic to point the thing I was asking about the capacitor connection.
So I recently were talking here about making an smps out of some leftover BJT's , after some failures and problems to drive it , i think i will try my hand at making a smps out of components dedicated for such use.
Since I have a IR2110 chip already , i google a schematic based on this driver chip and found some good looking schematics , so i will post them here and ask what do you think.
basically all i need is the oscillator chip SG3525, and a few resistors and diodes.
also , what would change if I attached the float capacitor not to the middle point of the smoothing capacitors but to the ground ?Because if I understand correctly now that the transformer primary is tied via the capacitor to the middle of the rectifier capacitors the mosfets drive the primary only half the voltage of the rectified mains , If I would attache the capacitor to the ground the mosfets would drive the capacitor to the full rectified voltage correct? the power output would be larger , why is this not done here for example?
I plan on using IRFP 460 as drivers , If i recall correctly they were 400 volt devices.
I used a red arrow in the schematic to point the thing I was asking about the capacitor connection.
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