Apparatus and method to use a single reference component in a master-slave configuration for multiple circuit compensation
US6717455B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2003 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Jan 8, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/00384
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A single external impedance element is used to perform multiple circuit compensation. A reference impedance code is first generated from a master circuit, and then the reference impedance code is shifted to generate a slave impedance code. The slave impedance code is provided to one or more slave circuits to activate devices in the slave circuit(s). Impedance-generation devices coupled to the slave circuit are then activated one at a time until their generated impedance corresponds to the impedance generated by the slave circuit. The reference impedance code can be incremented or decremented (e.g., shifted) to generate slave impedance codes corresponding to different impedance values, according to impedance requirements of various different circuits that require compensation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.