Power sequencing control
US5550729A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1994 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Jun 9, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/305
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An apparatus for sequencing turn-on and turn-off of power converters includes a first DC to DC converter responsive to a control signal for asserting a voltage supply signal and a sense circuit responsive to the output of said first converter to sense the level of voltage at the output of the first converter and to provide an enable signal in response to the output of said first converter when the first converter reaches a desired value. The apparatus further includes a second DC to DC converter responsive to said enable signal to provide a second supply voltage at a second different voltage level. The sequencing control has a circuit responsive to said second supply voltage and the first supply voltage, to short the second DC to DC converter to a reference potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.