Driver output swing control using a mirror driver
US6476649B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Nov 17, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/14
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Instrumentation driver apparatus, including a main driver, coupled to receive an alternating input signal and having a main circuit structure, which is adapted to generate, in response to the alternating input signal, a main output signal with alternating voltage. The apparatus includes a mirror driver, coupled to receive a direct voltage input and having a mirror circuit structure located in proximity to the main circuit structure, which is adapted to generate a mirror output signal in response to the direct voltage input, such that a variation in an operating condition of the main driver causes a corresponding variation in the mirror output signal. The apparatus further includes a feedback circuit, coupled to receive the mirror output signal, which provides in response to the mirror output signal a feedback stabilization input to the main driver so as to stabilize the main output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.