hello people, i have slight dilemma. i need to build a thermostat to control a heating element in an incubator (for an engineering project), and i'm not sure of whether or not my design will work. i have a TC622EAT temperature sensor configured as following:
Vdd to +6v
Gnd to gnd....
Tset - 123.3kohm resistor - Vdd
Out - gate on a mosfet
i know a little about electronics (i'm a mechanical eng student though) but if i have the drain and source outputs connected to ground and +12v respectively; can the mosfet act as a switch for the heating element safely? It will be switching on and off a 55W (ish) load. ie around 3-4amps. Oh yes i have separate power supplies for both the TC622 (4AAA batteries - 6v) and the heating element, (12 DC car battery).
So... will my circuit work?![Roll Eyes :rolleyes: :rolleyes:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Cheers
Vdd to +6v
Gnd to gnd....
Tset - 123.3kohm resistor - Vdd
Out - gate on a mosfet
i know a little about electronics (i'm a mechanical eng student though) but if i have the drain and source outputs connected to ground and +12v respectively; can the mosfet act as a switch for the heating element safely? It will be switching on and off a 55W (ish) load. ie around 3-4amps. Oh yes i have separate power supplies for both the TC622 (4AAA batteries - 6v) and the heating element, (12 DC car battery).
So... will my circuit work?
Cheers