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

power supply for PC
Battery Indicator based on PIC18f452
picaxe 18X repeater controller
high voltage white led driver
Output Assign Module
Circuit From the Past
CMOS interface circuit and the switching amplifier



Top