Switching regulator with asymmetrical feedback amplifier and method
US5220272A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1990 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Sep 10, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45721
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switching regulator network is disclosed which receives an input voltage and provides a regulated constant output supply voltage. The regulator includes a pulse width modulated switching circuit which regulates the output voltage responsive to a feedback error signal. A transconductance error amplifier produces an error feedback signal which is proportional to the difference between the reference input voltage and the output voltage. The overshoot of the output supply voltage is minimized by including a means in the transconductance error amplifier to provide a higher negative slew rate current than the positive slew rate current. This is done without employing extra pins or parts in the integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.