Voltage booster circuit
US5812018A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Jan 13, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In order to provide a voltage booster circuit to be controlled for generating either of a positive high voltage and a negative high voltage for economizing chip size, a voltage booster circuit of the invention, having a charge transfer circuit wherein charges are transfered from a lowest node (N10) to a highest node (N15), comprises switching means (1 and 2) for selecting one of a positive high voltage output mode and a negative high voltage output mode. A positive high voltage (VPP) is output from the highest node (N15) by supplying a power supply voltage (VCC) to the lowest node (N10) in the positive high voltage output mode, and a negative high voltage (VBB) is output from the lowest node (N10) by grounding the highest node (N15) in the negative high voltage output mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.