High efficiency electronic circuit for generating and regulating a supply voltage
US6518830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Aug 21, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high-efficiency electronic circuit generates and regulates a supply voltage and includes a charge-pump voltage multiplier which is associated with an oscillator and has an output connected to a voltage regulator in order to ultimately output said supply voltage. Advantageously, the circuit comprises a first hysteresis comparator having as inputs the regulator output and the multiplier output, and comprises a second hysteresis comparator having as inputs a reference potential and a partition of the voltage presented on the regulator output. The comparators are structurally and functionally independent of each other, and their outputs are coupled to the oscillator through a logic circuit to modulate the oscillator operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.