Thermistor lights lighting delay circuit


Posted on Mar 28, 2007

Circuit shown in Figure 2-49. The circuit is very simple, cold PTC thermistor element, jump characteristic thermal resistance of the lamp to control delay time. Usually the del


Thermistor lights lighting delay circuit
Click here to download the full size of the above Circuit.

ay time is 10 ~ 30s, such as to change the delay time, adjustable Rz, the value of C. R. Adopt a positive temperature coefficient of thermal PTC thermistor, the choice of the Curie point about 80, nominal resistance value at 20 rise when 1500,80 to several thousand Euro to several tens of kilohms. Rt and R2 is required intimate contact.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Osmond PCB
WinCircuit
FM Stereo Transmitter with BA1404
High frequency signal generator
Linear-triangle-wave-timer
Buffer Lc Data And Clock Lines Circuit
How to make an Astable or Free running Multi vibrator using 741 Op-Amp
hv dc dc converter
simple digital counter by
park aid schematics
Infra-Red Remote Control Tester
Lessons on Electric Circuits Experiments
RAPID BATTERY CHARGER FOR ICOM IC 2A
10 MHz FREQUENCY COUNTER



Top