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

Derived Center-Channel Stereo System
8052 Microcontroller Projects
TT6061A and TT8486A sensitive touch light dimmer circuit with explanation
how to build digital step km counter
MC34017A Telephone Tone Ringer Bipolar Linear/I2L
Morse Code Bicycle Safety Blinker
A voice-activated lights control circuit