Systems with components operable in low power modes
US8766673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2012 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Aug 28, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/017518
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system comprises a first component operable in a plurality of modes coupled to a second component via an isolation circuit. The isolation circuit comprises a first diode coupled between a power supply of the first component and an output of the isolation circuit. The output of the isolation circuit is coupled to the second component.The isolation circuit also comprises a first transistor the base of which is coupled to an output of the first component and one of the collector and emitter of which is coupled to the output of the isolation circuit.In a low power mode of the first component, parasitic supply from the output of the isolation circuit is blocked from the power supply of the first component and from the output of the first component by the first transistor and the first diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.