Power supply control circuit
US9768619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2016 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Dec 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/23
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A power supply control circuit includes a drive voltage generation circuit configured to generate a plurality of drive voltages by using a plurality of power supply voltages that are supplied from outside, a sequencer configured to stop, when supply of the plurality of power supply voltages is stopped in a predetermined order, generation of the plurality of drive voltages according to priority ranks set in advance, and a power supply monitor circuit configured to perform, when supply of one power supply voltage, among the plurality of power supply voltages, is stopped in an order different from the predetermined order but supply of other power supply voltages is continued, an operation for simultaneously stopping generation of drive voltages that are set at higher priority ranks than a priority rank for stopping generation of a drive voltage that uses the one power supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.