Adaptive driver with capacitive load sensing and method of operation
US6130541A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/2605
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An adaptive output driver includes circuitry for sensing the capacitive loading of a driver circuit and then adjusting the drive output so that the output signal possess a desired slew rate. In one embodiment, the circuit of the present invention includes a capacitance sensor, a control circuit, and an output driver. The capacitance sensor measures the unknown load capacitance. The control circuit generates a control signal in response to the capacitive load measurement. The output driver receives the control signal and in response produces an output level which when supplied to the capacitive load produces an output signal having the desired slew rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.