Boost-buck cascade converter for pulsating loads
US6798177B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Oct 15, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/007
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter including a first stage, a reservoir capacitor and a second stage. The first stage converts the voltage of a primary energy source, such as a battery, to a voltage on the reservoir capacitor, which stores a large amount of energy in the form of a voltage substantially larger than the voltage of the primary energy source. The second stage converts the voltage on the reservoir capacitor to a substantially constant voltage for a load device that demands current having the form of large, short, current pulses. The cascaded converter prevents the pulsating load currents of the load device, such as a GSM power amplifier, from causing a severe voltage loss at the battery. This increases the power available from the battery and reduces loses from the internal resistance of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.