Voltage generating apparatus
US8729959B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2013 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Aug 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/242
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage generating apparatus is provided. The voltage generating apparatus includes a reference voltage generator and an output voltage generator. The reference voltage generator is used for generating a reference voltage, and the reference voltage generator decides to generate the reference voltage or not according to a control signal. The output voltage generator includes a comparator, a variable resistor and a current source. The comparator compares the reference voltage and an output voltage to generator a calibrating signal. A resistance of the variable resistor is decided by the calibrating signal. The current source provides an output current to flow through the variable resistor for generating the output voltage. Wherein, the reference voltage is generated during an initial timing period, and the generator is turned off after the initial timing period. The initial timing period is determined according to the control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.