Analog-to-digital (AD) converter using resonance frequency shifting and voltage detecting device thereof
US7561093B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Mar 14, 2008 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Mar 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/60
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog-to-digital (AD) converter and a voltage detecting device thereof are provided. The AD converter includes at least one voltage detecting device which outputs a signal of a frequency determined based on a magnitude of an input voltage using a resonance frequency of a resonator. The AD converter determines a digital output value depending on the output signal from the voltage detecting device. Therefore, the AD converter can achieve a high resolution and a high speed with far less power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.