High sensitivity dual function meter circuit
US4241448A · kind A · utility
0Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1979 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Dec 28, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a radio receiver or transmitter circuit, a high sensitivity dual function meter circuit for metering the DC and AC operation of a circuit stage is constructed by connecting a detector diode to a point in the source or emitter circuit of the metered stage rather than to ground. High sensitivity is obtained by passing both the DC and AC current through the detector diode so that a smaller AC voltage swing can be detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.