Switching arrangement and switch component for a DC-DC converter
US6175225A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2000 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Jun 29, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dc--dc converter comprises first (5) and second (6) transistor switches connected in series between a dc input (1) and ground (4). The converter includes an inductor connecting the junction (8) of the two switches to a dc output and also a capacitor connecting the dc output to ground. The switches are closed alternately in response to a switching signal applied to a switching signal input (3), thereby alternately charging the capacitor from the dc input through the first switch and the inductor and discharging the energy stored in the inductor into the capacitor via the second switch. The coupling (12) from the switching signal input to the control input (25) of the second switch is provided with a threshold-responsive disable signal input (13) which is connected to the junction (8) between the two switches, for preventing the second switch from being controlled to a closed state at any time that the voltage on the junction is above a predetermined threshold. This threshold is set to be substantially zero by means of a comparator (28). Thus the second switch is prevented from being closed both when the first switch is conducting and also should the capacitor attempt to discharge …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.