Voltage charge pump with circuit to prevent pass device latch-up
US6646493B2 · kind B2 · utility
10Cited by
19References
69Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2001 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Oct 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump is disclosed with a circuit to prevent pass device latch-up. The charge pump includes at least one charge storage device and a pre-charge circuit to charge the at least one charge storage device to a charge level to provide a predetermined output voltage from the charge pump. A pass device is coupled between the charge storage device and an output of the charge pump, and a circuit is coupled to the pass device to prevent a latch-up condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.