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

Stereo Synthesizer
Organ Sound Generator
Bar-Mode Lights Sequencer
6V Ultra-Bright LED Chasers
LED current limiter accepts ac or dc
ISL8107 Single-Phase Pulse-Width Modulation (PWM) Controller with Wide (9V-75V) V
NTSC Video Using the 68HC908QY4
Vibration sensing Voice FM radio transmitter circuit ND-2 TM-801A



Top