Sampling device
US11190719B2 · kind B2 · utility
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24Claims
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Assignee
Inventor
Key dates
| Filing date | Jul 26, 2019 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Jul 26, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A first input receiving a voltage to be sampled formed by a terminal of a sampling capacitor. An amplifier has a first input connected to another terminal of the sampling capacitor and a second input connected to a reference voltage. The amplifier is supplied by a power supply configured to deliver a reduced current and to supply the amplifier in a first condition during a first period, deliver a rated current and to supply the amplifier in a second condition during a second period, the reduced current being lower than the rated current. During the first period, the first and second inputs of the amplifier are short-circuited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.