doubled312
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I'm working on a project that requires paralleling of 2 mosfets. I attached the wiring diagram for just the two mosfets below. Basically the gate on each mosfet is connected to their respective pin on a PIC microcontroller. When the respective pin is high, the respective MOSFET is turned on and sends a current through the coil. The transistor at the bottom has a resistor connected to the drain to reduce current flow to the coil when that transistor is on.
The PIC is programmed such that the two pins on the PIC can't be high at the same time. Only one can be high at a time. Basically, we want to send two different currents/voltage drops through/across the coil depending on whichever pin is high.
Do you guys see any problems with this wiring diagram?
thanks.
- - - Updated - - -
Another note: when I tested the circuit with one MOSFET it behaved as expected. When I added the second MOSFET in parallel, both MOSFETs turned on at the same time when either was activated.
The PIC is programmed such that the two pins on the PIC can't be high at the same time. Only one can be high at a time. Basically, we want to send two different currents/voltage drops through/across the coil depending on whichever pin is high.
Do you guys see any problems with this wiring diagram?
thanks.
- - - Updated - - -
Another note: when I tested the circuit with one MOSFET it behaved as expected. When I added the second MOSFET in parallel, both MOSFETs turned on at the same time when either was activated.