Apparatus and method for monitoring electrical current
US9397690B2 · kind B2 · utility
1Cited by
16References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 21, 2013 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Mar 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/382
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for sensing current of a vehicle battery employs an extended counting analog-to-digital conversion process (212) to a chopped and amplified voltage appearing across a low ohmic shunt resistor (203) placed between the negative pole of the vehicle's battery and the chassis ground of the vehicle. Gain adjustment control of a programmable gain amplifier (209) by matching the gain to the dynamic range of the ADC (212) permits a high dynamic signal sensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.