Trimming impedance between two nodes connected to a non-fixed voltage level
US6642779B2 · kind B2 · utility
2Cited by
7References
1Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 25, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Feb 25, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J1/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A T-network containing three impedances is provided between two terminating ends connected to a non-fixed voltage level. Two impedances are connected in series between the two terminating ends. A third impedance is connected between the junction of the first two impedances and a fixed voltage. Switches may be used to trim the third impedance, thus obtaining a desired voltage between the two terminating ends. A terminal of any switches used for trimming can be connected to the fixed voltage node, thereby ensuring that the impedance introduced by the switches does not change substantially during different operating situations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.