One circuit thermistor relay contacts to prevent competition


Posted on Mar 28, 2007

Competition is ~ relay contacts contactor control systems often encounter problems, too much trouble to deal with, and sometimes need to add a lot of elements to add. However, if the use of negative temperature coefficient thermistor (NTC) delay switching


One circuit thermistor relay contacts to prevent competition
Click here to download the full size of the above Circuit.

characteristics, can easily and effectively prevent relay contact competition. Circuit 11 in FIG. 6. It is the thermistor resistance RT larger at room temperature, through the current demand after a period of delay (about 0. 5s), the sharp decline in the resistance, time delay relay KAz pull to avoid contact with the contactor KM point competition dispute, avoid circuit out of control.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

22 Watt Audio Amplifier
FM reciever with classic TDA7000
10 Mhz fiberoptic receiver
Monostable photocell circuit
5V Power Supply For On Train Radio Camera
Fuse Saver Circuit
build one transistor fm radio
current controlled oscillator
Ultrasonic switch
Metal detector circuit diagram 3
Single Display LED Frequency Counter
Remote tracking circuit schematics



Top