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

Subwoofer Equaliser
Field strength meter 1-150Mhz
An Overly Sensitive One-Shot
Laser Communication (Transmitter
Simple Voltage comparator using CA3140
Simple Cellphone Battery Charger Circuit
booster radio fm schematic circuit
io port programing chalange
meter adaptor with symmetrical
Schematic Diagram LM4992 bassed Stereo audio power amplifier circuit and explanation
Three phase auto changer circuit
Toyota MR2 Power Steering System
interfacing touch panel with arm7 friendly
Single-phase motor energy consumption of the two brake circuits