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

Series-telephone-connection
Perfboard Hackduino Arduino-compatible circuit
Dual cable (serial + USB) for Nikon coolpixes
Strobe Light circuit
Basic Tone Control
I2C communication between PICs
100 transistor circuits
60W inverter using transistors
XR4151 XR4151 -Voltage-to-Frequency Converter
Basic Stamp Based Altimeter
I2C Interfacing Acceleration Sensing PCF8591
One simple second pulse source circuit
XTR112 114 without external transistor circuit diagram
Thermocouple cold junction compensator AD596 597 a circuit diagram of Temperature Monitor



Top