The circuit was devised to monitor car battery voltage and to connect using only two wires. The output indications follow a two stage development. Three window comparators monitor the battery supply voltage producing a low output in the ranges 11-14, 12-15, and equal to or greater than 13 V respectively.
Low cost DVM for automotive applications
Billiges Digitalvoltmeter fuer Kraftfahrzeuganwendungen
New Electronics ; 10 , 4 ; 52-54
1977
3 Seiten
Article (Journal)
English
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