Apparatus for comparing voltages
US4015141A · kind A · utility
1Cited by
9References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1974 |
| Grant date | Mar 29, 1977 |
| Priority date | — |
| Expiry date | Dec 4, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/1659
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for comparing voltages with predetermined upper and lower threshold levels is described. A single differential circuit is connected to a junction point in a first voltage divider, which determines one of the above threshold levels. The differential circuit produces a first output signal level when that threshold value is exceeded. A transistor is connected to a junction point of a second voltage divider, which determines the other threshold level, as to have its conducting state controlled thereby. The transistor is rendered conductive when the other threshold level is exceeded switching the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.