High-efficiency power charge pump supplying high DC output currents
US6605985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2002 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Jun 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/077
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The voltage applied to the gate terminals of the charging transistors and charge-transfer transistors of two parallel pumping branches forming a charge pump is a boosted voltage generated internally and supplied in a crosswise manner. In particular, for driving the charge pump, first and second driving signals are generated respectively for the first and for the second pumping branch via a first and respectively a second driving circuit; the first and second driving signals are also supplied respectively to a first and to a second auxiliary charge pump to obtain respectively first and second voltage-boosted signals; and the first and second boosted voltages are respectively supplied to the second and to the first driving circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.