Comparator detects failed telecomm supplies


Posted on Feb 7, 2013

You often need to know when a telecomm power supply`s output drops below its nominal value. The dropout generally indicates a failure and may dictate replacement of the supply or some other form of system maintenance. The circuit in Figure 1 uses an isolated comparator to monitor two 48V telecomm supplies (of either polarity).






Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

25W 230VAC small size ballast using IR2520D
Lead Acid Battery Charger II
Dc static switch
Conversion Receiver For 160 To 20M Circuit
DIY Binary Clock with Arduino
microcontroller Arduino 230v Light bulb dimming
Signal Conditioners Information
Negative oxygen ion generator 4
Wien bridge sine wave oscillator circuit composed of LM101A
AVR ISP programmer In-System Programmer
Volume control circuit
Sound field effect transistor amplifier circuit



Top