Voltage-driver circuit with dynamic slew rate control
US9294078B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2014 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Sep 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/24
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system for circuit for generating an output signal with a dynamically adjustable slew rate includes a sampler, an envelope detector, an envelope comparison and control circuit, and a voltage-driver circuit that includes output buffers for generating the output signal. The sampler generates a sampled signal indicative of the slew rate of the output signal. The envelope detector generates an envelope detection signal indicative of a peak value of the sampled signal. The envelope comparison and control circuit compares a voltage level of the envelope detection signal with various threshold voltage levels, and generates control signals. The voltage-driver circuit controls the operation states of the output buffers based on the control signals to dynamically adjust the slew rate of the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.