Here's an H-bridge circuit I could use some commentary on, as I've never built one. I'm trying to use components I have on hand, and stick to N-channel MOSFETs. Just wondering how likely this is to fail due to shoot-thru or other problems.
Not shown in the schematic:
Inductor load is a ~10:1 transformer, which I want to run at ~1A. Is there a transformer in LTSpice?
My MOSFETs are IRF540N, by I used IRF530 because that one is in LTSpice
Frequency range = 400-2000Hz, set by R2. I'll use a pot there, with fixed resistors to limit the range.
The diodes D1 and D2 form a Dickson charge pump to get the voltage up for the high side switches.
The goal is a DC-AC inverter to drive some EL (electroluminescent) tape. My plan is to use a 555 oscillator driving an H-bridge to pulse current thru the secondary coil of a wall wart used backwards, to get ~120VAC and ~100mA at the output.
Will the charge pump provide enough juice to drive the high side?
Is there any problem using both the 555 Output and Discharge outputs? I don't see this done very often but it seems a handy way to spare an external transistor.
Any suggestions for component values? (Don't worry about the timing components - I can handle those.)
Anything I'm missing? (More gate resistors?)
Not shown in the schematic:
Inductor load is a ~10:1 transformer, which I want to run at ~1A. Is there a transformer in LTSpice?
My MOSFETs are IRF540N, by I used IRF530 because that one is in LTSpice
Frequency range = 400-2000Hz, set by R2. I'll use a pot there, with fixed resistors to limit the range.
The diodes D1 and D2 form a Dickson charge pump to get the voltage up for the high side switches.
The goal is a DC-AC inverter to drive some EL (electroluminescent) tape. My plan is to use a 555 oscillator driving an H-bridge to pulse current thru the secondary coil of a wall wart used backwards, to get ~120VAC and ~100mA at the output.
Will the charge pump provide enough juice to drive the high side?
Is there any problem using both the 555 Output and Discharge outputs? I don't see this done very often but it seems a handy way to spare an external transistor.
Any suggestions for component values? (Don't worry about the timing components - I can handle those.)
Anything I'm missing? (More gate resistors?)
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