Voltage tripler using a charge pump having a single multiplexed charge transfer capacitor
US5397928A · kind A · utility
16Cited by
39References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1994 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Jun 17, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage tripler which uses a charge pump with a single charge transfer capacitor to produce the required voltage is disclosed. The voltage tripler in conjunction with an inverter is useful for producing voltages with negative polarities. The voltage tripler when used in conjunction with a variable frequency oscillator circuit is useful in optimizing the power consumption by the charge pump of the voltage tripler when the tripler is not operating under load conditions. The tripler is useful in supplying power to a combination RS232 and RS422 or RS232 and RS485 interface, as well as other monolithic interface products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.