Voltage regulation and power switching system
US6201374A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1998 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | May 14, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/56
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A power switching and voltage regulation system utilizing a conventional switching element to provide distributed power switching and voltage regulation. The system utilizes a switching element to impose an impedance in a controlled manner to provide power to a load such as a plug-in module in an electronic apparatus. The power source supplying an input DC voltage is intentionally set to a higher voltage than the level required by the plug-in module. The voltage supplied is required to be sufficiently high such that the voltage delivered to the plug-in module, exceeds the maximum permitted voltage level of the voltage required by the particular plug-in module. Once the switching device is turned on, the switching element exerts an impedance which functions to drop the voltage supplied to the load to the required value. The impedance is generated in accordance with a feedback control signal. The drop in voltage is achieved in accordance with a reference signal input to a comparison circuit such as an operational amplifier. A first embodiment discloses a system wherein a plurality of DC output voltages are generated in which all the output voltage levels are the same. A second embodi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.