Micropower double ended limit detector


Posted on Apr 17, 2012

The detector uses three sections of an L144 and a DC4011 type CMOS NAND gate to make a very low power voltage monitor. If the input voltage, Vin, is above Vhigh or below Vlow, the output will be a logical high. If (and only if) the input is between the limits will the output be low


Micropower double ended limit detector
Click here to download the full size of the above Circuit.

The 1 megohm resistors Rl, R2, R3, and R4 translate the bipolar ±10V swing of the op amps to a 0 to LOV swing acceptable to the ground-referenced CMOS logic.





Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Dual Litz Honeycomb Coils Crystal Radio
Large-scale LED display system hardware structure and principle
Digital Decade Counter Schematic
diagram shows rather simple voltage
50w audio amplifier using ic tda1562
dmm fuse protector
RF Combo
Outdoor surveillance with condenser microphones
Video Amplifiers for the Mirror Screw
Flicker frequency of multiple sets of different light-emitting diode lights chain circuit
Household voice recording circuit



Top