hello all! happy holidays!
school vacation is on so i would like to get on some fun projects done.
anyway ive been stumped on my recent/first trial for an IR2153 HB build for an amplifier. i wanted to try out first if i can get the IC to work.
ive had danyk's schematic in my head as sort of a guide/reference:
i tried to veroboard the circuit with an ATX trafo just to get a quick and dirty smps. turns ratio should give around 25vdc on the 12v sec winding.
plugged it in, and the series 50w incandescent protection bulb glowed steadily. mosfets busted [they were tested ok before], and IC also busted. no smoke no sparks.
so i put the IR2153 circuit on the breadboard powered from an 12v supply. heres a pic of my board.
RC is 22k/1n giving around 32khz on the output. 10k dummy load resistors. the diode from pin1 to pin8 is an HER308, 100n mylar cap from pin8 to pin6.
the breadboard circuit WORKED FINE with push pull config [pin1 straight to pin8, pin6 to ground] but when i put the diode/capacitor combo for the highside i dont get any signal across the 10k resistor [electrical connection ensured].
the low side output still puts out around 31.8khz at 46% duty. i tried other IR2153 from the batch but all the same.
i could be a big idiot at times so i think i might have missed something somewhere. anything that could help?
thank you very much and happy holidays again!
school vacation is on so i would like to get on some fun projects done.
anyway ive been stumped on my recent/first trial for an IR2153 HB build for an amplifier. i wanted to try out first if i can get the IC to work.
ive had danyk's schematic in my head as sort of a guide/reference:
i tried to veroboard the circuit with an ATX trafo just to get a quick and dirty smps. turns ratio should give around 25vdc on the 12v sec winding.
plugged it in, and the series 50w incandescent protection bulb glowed steadily. mosfets busted [they were tested ok before], and IC also busted. no smoke no sparks.
so i put the IR2153 circuit on the breadboard powered from an 12v supply. heres a pic of my board.
RC is 22k/1n giving around 32khz on the output. 10k dummy load resistors. the diode from pin1 to pin8 is an HER308, 100n mylar cap from pin8 to pin6.
the breadboard circuit WORKED FINE with push pull config [pin1 straight to pin8, pin6 to ground] but when i put the diode/capacitor combo for the highside i dont get any signal across the 10k resistor [electrical connection ensured].
the low side output still puts out around 31.8khz at 46% duty. i tried other IR2153 from the batch but all the same.
i could be a big idiot at times so i think i might have missed something somewhere. anything that could help?
thank you very much and happy holidays again!