Test batteries without a voltmeter


Posted on Sep 5, 2012

From a high-volume-production point of view of the Design Idea `Test batteries without a voltmeter` (EDN, Nov 9, 2000, pg 167), it is a time-consuming and laborious task to tweak the large number of potentiometers on each of the comparator input references. An alternative to this onerous adjustment chore is to replace all potentiometers with 1%-tolerance fixed resistors (Figure 1). Before calculating each voltage-reference resistance value, you should use a reasonable selected total resistance value, RTOT, ranging from 100 k to 1 M.






Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Integrated solid state relay
Touch Switch Circuit with explnation
power electronic design
Infrared Alarm Barrier Circuit
theremin
4 in 1 burglar alarm pcb
Hacking an alarm clock
Balanced Low Noise Microphone Preamp
Multifunction appliance protection circuit diagram
Burglar alarm bell
Monitor circuit diagram with over 555



Top