Error amplifier
US10931242B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Aug 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/144
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An error amplifier for a pulse width modulation circuit is described. The amplifier includes an operational amplifier configured as an integrator and a feedback loop coupled between a signal output of the operational amplifier and an inverting input of the operational amplifier. The feedback loop comprises a feedback capacitor coupled to the signal output, a feedback resistor coupled to the feedback capacitor, and an integrator resistor coupled to the feedback resistor and the inverting input of the operational amplifier. A junction between the feedback resistor and the integrator resistor is configured to receive an input signal and a junction between the feedback capacitor and the feedback resistor is configured to receive a feedback signal from the pulse width modulation circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.