Tracking power supply with increased boost capability
US9484860B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | May 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/185
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A tracking power supply for one or more amplifiers includes one or more cascaded sets of power boost circuits to temporarily boost the positive and/or negative power supply rail, respectively. Each power boost circuit may include a gain element and an energy source such as a capacitor or battery, and the power boost circuits are linked to provide a greater degree of voltage boost when needed. An optional control circuit monitors amplifier output signal levels, or separately amplified input signal levels, and provides power boost control signals to the power boost circuits, which temporarily raise or lower the positive and/or negative supply voltages above or below the nominal voltage rails in tandem with the highest and lowest output signals, respectively, from the amplifier(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.