Slew-enhanced operational transconductance amplifier
US8975962B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2013 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Aug 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45183
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention are generally directed to improving the slew rate of an amplifier as the amplifier charges or discharges a capacitive load. In one embodiment, the amplifier is coupled to a slew-enhancing circuit which uses a control signal from the amplifier to aid the amplifier when charging or discharging the load. For example, the control signal may be an internal voltage used by the amplifier to control circuit elements within the amplifier. By routing the control signal to the slew-enhancing circuit, the control signal biases the circuit elements within the slew-enhancing circuit to source a boost current when charging the capacitive load or sink the boost current when discharging the capacitive load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.