Hi, A 555 timer at 10 kHz is driving a IR2117 gate driver.
IR2117 datasheet here
The load is a capacitor in parallel with a light bulb.
The IR2117's Vcc is supplied by a bench power supply.
A permanent magnet alternator (=PMA) output is connected to a bridge rectifier and the DC output of the rectifier is connected to the Drain pin of the MosFet. I am manually spinning the PMA. The varying magnitude of the load wave form during the off cycle seems to suggest the MOSFET is not turning off properly.
I do not understand why the MOSFET is not turning off when the IR2117 input is low.
This is a first attempt and I do not have any real experience with this type of circuit. Thank you for any help received.
Frame from video.
Lower trace = IR2117 input.
Upper trace = load waveform.
The load is on for some of the time when the IR2117 input is low.
Watching the video will allow the timing of this relative to the overall cycle of events to be seen much more clearly.