Audio amplifiers for high-power portable speakers such as trolley speakers usually operate with lithium-ion batteries, and these batteries can vary from a single cell to a few cells in series.

H-bridge buck-boost ICs are widely used in applications requiring a constant voltage or current source even when the system ...

Adding charge pump and LDO components to a boost converter circuit creates a cost-effective power supply for LCDs and other portable applications. Many portable devices use LCD displays. These ...