Detection circuit for sensing the input voltage of transformer
US7671578B2 · kind B2 · utility
10Cited by
17References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2006 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Jul 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/183
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit for detecting an input voltage of a transformer is provided. The circuit includes a current source circuit coupled to a winding of a transformer. A current-to-voltage circuit is coupled to the current source circuit to generate a first voltage in response to a current outputted from the current source circuit. A sample-and-hold circuit generates an output voltage by sampling the first voltage. The transformer is coupled to the input voltage, and the output voltage is correlated to the input voltage of the transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.