Rosenberg, Klein & Lee
Control apparatus and method for a boost-inverting converter
A plurality of switches, an inductor and two capacitors are configured to be a boost-inverting converter. To operate the converter in a boost-inverting mode, a control apparatus and method switch the switches such that the inductor is energized in a first phase, the first capacitor is discharged to produce an inverting voltage in a second phase, and the capacitor Cout1 is discharged to produce the inverting voltage and the second capacitor is charged to produce a boost voltage in a third phase. Therefore, the boost-inverting converter has lower peak inductor current and less power loss, and the limitation to the switch design for the boost-inverting converter is relaxed.
Richtek Technology Corp.
H H Y
H02M H02M Y02B
inventional inventional additional
Wei-Hsin Hung-Der Chung-Lung Jing-Meng
Wei Su Pai Liu