Battery voltage level detecting apparatus
US4521735A · kind A · utility
16Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1982 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Oct 25, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3648
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A battery voltage level detecting apparatus makes possible the detection of the voltage level of a battery and the detection of a minimum operating voltage by means of a single comparison circuit and a single adjustment. A voltage varying with variation of the battery voltage is compared with an output voltage of a counter for counting reference clocks so as to control the counting operation. When a change occurs in the comparison result, a battery voltage level storage command is generated, and then the counter is preset. In response to the command, the count value is stored and displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.