red2cwm
Newbie level 1
mosfet relay schematic
I need some help from you guys with a project I'm working on where I want to modify the factory setup of a circuit board and motor that only turns in one direction.
Currently the board sends 2 volts to the motor, which pulls .49 Amps at 2 volts. The board is powered by 9 volts.
I would like to use the board to trigger a transistor/mosfet/relay, which will send 6 volts to the motor. The transistor/mosfet/relay will have to be triggered by only 2 volts. I can use resistors to decrease the 9 volts as necessary (that's no problem). The motor will pull .65 Amps at 6 volts so the transistor/mosfet/relay will have to be able to handle nearly 4 watts.
I know how to set the circuit up. And I know how to calculate which resistor to use to get the 9v to 6v. But I need help picking out a transistor/mosfet/relay that can operate under such stressful conditions (4 watts) but be triggered by such a low voltage (2v).
Thanks,
Chris
I need some help from you guys with a project I'm working on where I want to modify the factory setup of a circuit board and motor that only turns in one direction.
Currently the board sends 2 volts to the motor, which pulls .49 Amps at 2 volts. The board is powered by 9 volts.
I would like to use the board to trigger a transistor/mosfet/relay, which will send 6 volts to the motor. The transistor/mosfet/relay will have to be triggered by only 2 volts. I can use resistors to decrease the 9 volts as necessary (that's no problem). The motor will pull .65 Amps at 6 volts so the transistor/mosfet/relay will have to be able to handle nearly 4 watts.
I know how to set the circuit up. And I know how to calculate which resistor to use to get the 9v to 6v. But I need help picking out a transistor/mosfet/relay that can operate under such stressful conditions (4 watts) but be triggered by such a low voltage (2v).
Thanks,
Chris