BUCK-BOOST电路是一种常用的DC/DC变换电路，其输出电压既可低于也可高于输入电压，但输出电压的极性与输入电压相反。下面 ...

Power supply circuits come in the form of voltage step-up (boost) or the more common step-down (buck) DC/DC converter. Many of today’s applications require multiple voltage rails to drive a variety of ...

注：此拓扑出的是负压，4开关的buck-boost可实现正压的升降压。 在一个周期内，当MOS管Q1导通时，二极管截止，输入给电感储能，输出需要的能量靠输出电容维持；当MOS管Q1关断时，续流二极管导通，储能电感给输出提供能量。 Buck-Boost的输入输出电压公式为 ...

不知道大家在项目于上使用Buck-Boost芯片时，有没有这样的疑问：选用的明明是升降压变换器，也在单板上正常使用了，但是输出并不是负压！ 应该很多人有过这样的设计：输入电压是2.5~5V，输出3.3V，DC-DC芯片选用的就是Buck-Boost芯片，输出也的确是正的3.3V，并不 ...

What are the spec needs for for a USB power-sourcing programmable power supply (PPS)? What comprises a high-efficiency USB-C buck converter solution. The key factors behind a USB-C buck-boost ...

While searching for some SEPIC converters (https://en.wikipedia.org/wiki/Single-ended_primary-inductor_converter), I came across a popular power supply module that is ...

Linear Technology’s LTC3119 is an efficient, monolithic buck-boost converter that operates with inputs from 2.5 to 18 V (Fig. 1), making it well-suited to operate from one- to four-cell Li-ion ...

A high-efficiency buck-boost DC-DC converter was developed by the research team headed by Prof. CHENG Lin from the School of Microelectronics at the University of Science and Technology of China (USTC ...