Power management circuit using two configuration signals to control the power modes of two circuit modules using two crosslinked multiplexers and a level shifter
US8762753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2012 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Feb 23, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power management circuit for managing power supplied to an electronic circuit by a core power supply. The electronic circuit includes digital and analog circuit domains and operates in POWER-ON, RUN and STANDBY modes. The power management circuit includes a master state machine that exchanges a handshake signal with the analog circuit domain to monitor the modes of operation and generates first and second configuration signals. The power management circuit enables and disables the analog circuit domain based on the first and second configuration signals. A switch connected to the core power supply and the digital circuit module enables and disables the digital circuit domain based on the second configuration signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.