Boosting type dc/dc converter

Abstract

Abstract PURPOSE:To improve a boosting ratio by connecting a transistor for a switch between a node between a choke coil and a capacitor connected in series and a ground (a power supply) and supplying load with electricity from the coil and capacitor. CONSTITUTION:A boosting type DC-DC converter is constituted in such a manner that a series body of a choke coil L and a transistor (hereinafter called TR) for a switch is connected to a power supply, a capacitor C1, a diode D1 for rectifying and a capacitor C0 for smoothing are connected in parallel with the TR, and load R0 is connected in parallel with the capacitor C0 for smoothing. A diode D2 is connected in parallel between the choke coil L and the capacitor C1. Consequently, supply voltage VS is applied to the choke coil L while the capacitor C1 is charged when the TR is at ON. The induced voltage of the coil L and the charging voltage of the capacitor C1 are applied and fed in series to the load R0 when the TR is at OFF.

Inventors

• 👤 Koji Kuwabara
• 👤 桑原　厚二

Bibliographic Details