Wake up bias circuit and method of using the same
US9164522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2013 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Oct 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/164
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A wake up circuit includes a bias signal control block configured to receive a sleep signal and to generate a plurality of bias control signals. The wake up circuit further includes a bias supply block configured to receive each bias control signal of the plurality of bias control signals and to generate a header bias signal. The bias supply block includes a first bias stage configured to receive a first bias control signal of the plurality of bias control signals, and to control the header bias signal to be equal to a first voltage. The bias supply block further includes a second bias stage configured to receive a second bias control signal of the plurality of bias control signals, and to control the header bias signal to be equal to a second voltage different from the first voltage. The wake up circuit further includes a header configured to receive the header bias signal, and to selectively connect a supply voltage to a load based on the header bias signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.