Patent ID: 7138730
Filing Date: 2006-11-21
Classification: H02J,H02M

Abstract:
1. A system comprising: a first direct current (DC) power source having a first-source positive DC terminal and a first-source negative DC terminal; a second DC power source having a second-source positive DC terminal and a second-source negative DC terminal; an output capacitor having an output-capacitor positive terminal operably coupled with the second-source positive DC terminal and an output-capacitor negative terminal operably coupled with the first-source negative DC terminal; a series electrical connection between the first-source positive DC terminal and the second-source negative DC terminal; a boost converter having a boost-converter DC input operably coupled with the series electrical connection and the first-source negative DC terminal, and a boost-converter DC output operably coupled with the output-capacitor positive and negative terminals; and a buck-boost converter having a buck-boost-converter DC input operably coupled with the series electrical connection and the second-source positive DC terminal, and a buck-boost-converter DC output operably coupled with the output-capacitor positive and negative terminals.