DC/DC converter
US6483282B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2001 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Sep 13, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump-type DC/DC converter comprises n (n≧2) elementary stages, each consisting of a charge pump capacitor and several controllable switches connected thereto, whereby the input voltage of the DC/DC converter is applied to the input of the first stage, both electrodes of the charge pump capacitor of the kth stage are each connectable to one of the controllable switches with the output of the (k−1)th stage, k=2, . . . , n and the output of the nth stage forms the output of the DC/DC converter. The DC/DC converter in accordance with the invention is characterized in that it in addition enables one or more further controllable switches to be connected, via which the electrode of the charge pump capacitor of the nth stage which in the discharge phase is not connected to the output of the converter, to one or more outputs of the 1th stage (1=(n−2), . . . 1) and/or of the input voltage, and comprises a control circuit which in the discharge phase of the charge pump cycle signals ON, as a function of the input voltage of the DC/DC converter, that switch of the array consisting of the one controllable switch via which the electrode of the charge pump capacitor of the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.