Comparing device having hysteresis characteristics and voltage regulator using the same
US7990184B2 · kind B2 · utility
3Cited by
5References
19Claims
0Family size
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Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Jan 20, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/22
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments include a comparing device having hysteresis characteristics and a voltage regulator using the same. The voltage regulator includes a comparator which compares a comparison voltage with a reference voltage and outputs a result of the comparison, a switching controller which generates a plurality of switching signals in response to the comparison result, resistors connected in the form of a string to divide the comparison voltage into a plurality of voltages, and a switching box which selects one of the plural voltages as the comparison voltage in response to the switching signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.