Alternator testing apparatus
US4459548A · kind A · utility
202Cited by
20References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1981 |
| Grant date | Jul 10, 1984 |
| Priority date | — |
| Expiry date | Nov 12, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An alternator produces current that has an average component and a ripple component. The alternator testing apparatus produces one voltage representative of the magnitude of the peak-to-peak amplitude of the ripple component and a second voltage representative of the sum of the average component and the peak-to-peak amplitude of the ripple component. A series of comparators each have their signal inputs coupled to receive the first voltage and their control inputs coupled to a divider network which is in turn coupled to receive the second voltage. Indicators are coupled to the comparators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.