Boost升压电路

在交换式电源电路里面一种用来把输出电压升高的电路.应用在输出电压比输入电压高的需求上面. 理想电压放大增益是 A=1/(1-D) 但是实际上面使用上面设置成最多放大5倍.

A boost converter (step-up converter) is a DC-to-DC power converter steps up voltage (while stepping down current) from its input (supply) to its output (load). It is a class of switched-mode power supply (SMPS) containing at least two semiconductors (a diode and a transistor) and at least one energy storage element, a capacitor, inductor, or the two in combination. To reduce voltage ripple, filters made of capacitors (sometimes in combination with inductors) are normally added to such a converter's output (load-side filter) and input (supply-side filter).