Transistor junction monitors remote temperature


Posted on Jun 23, 2012

The circuit in Figure 1 uses a regular, general-purpose transistor as the sensing element and a thermal-diode monitor IC to measure temperature. The ADM1021 usually connects to an on-chip thermal diode on a CPU die itself, but in this application the sensor connects to a regulator low-cost discrete npn transistor, the 2N3904. The circuit ties the transistor base and collector together to form a two-wire sensor.






Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

LOTTO NUMBER SELECTOR
FM Transmitter with PLL
Advanced Electronic Siren
IC L298 based bidirectional H bridge DC motor control circuit
Arduino V-USB / HID 14 channel data logger
Ring Modulator
time delay relay circuit
555 ramp generator
Luxury Car Interior Light



Top