Hi,
I have the following parts:
- 2 fans 12V 0.12A each
- 1 PNP transistor TIP125
- 1 Thermostat switch which disconnect when temperature goes above 40 C
- different types of resistors
- 1 power source of 12V 0.5A
I want to connect this parts so when the temperature goes above 40 C the fans will start to work, I tried to connect the emitter of the transistor to the power source (+) side, the collector of the trsnsitor to the fans (+) side, and the base to the power source (+) side through the thermostat switch. Yet the this circuit is not working. I attached a diagram. can someone tell me what is worng or missing?
I have the following parts:
- 2 fans 12V 0.12A each
- 1 PNP transistor TIP125
- 1 Thermostat switch which disconnect when temperature goes above 40 C
- different types of resistors
- 1 power source of 12V 0.5A
I want to connect this parts so when the temperature goes above 40 C the fans will start to work, I tried to connect the emitter of the transistor to the power source (+) side, the collector of the trsnsitor to the fans (+) side, and the base to the power source (+) side through the thermostat switch. Yet the this circuit is not working. I attached a diagram. can someone tell me what is worng or missing?