BCM：电感电流连续工作模式（周期结束时电感电流刚好降为0） 看电感电流是否连续可以从每个周期的电感电流是否从0开始来判断。 这两种电路本质解释就是电压发生变化的电路。但是官方名称又叫单管不隔离直流变化。 单管：续流二极管。作用：续流。

Many of today's MP3 players, multimedia players, digital video recorders, and other portable electronic devices have found the micro hard disk drive to be the optimum device for memory storage ...

Buck-boost converter topologies fit into a wide range of applications. Whether you are charging a battery from a battery, powering a string of LEDs, or running a handheld device from a single cell, ...

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 ...

Buck-Boost DC-DC Converters are versatile power electronic devices that facilitate the conversion of a direct current (DC) input to a DC output that may be either higher or lower than the supply ...

Increasingly, many industrial PCs (IPCs), USB power delivery (PD), and automotive digital video recorders (DVRs) require wide V IN DC/DC converters to cope with a wide range of battery voltage ...

Check out a new feature newly loaded online at ElectronicsWeekly.com – Buck-boost converters change with the times. As serial-fabric technologies become the limiting factor to system performance, he ...

Texas Instruments’ TPS63000 helps extend battery life in smart phones, digital still cameras and other single-cell, Li-ion-powered devices by providing high-efficiency buck-boost power conversion. The ...

DC to DC conversion has come a long way. What was once took an electromechanical vibrator and transformer has been reduced to a PC board the size of a largish postage stamp that can be had for a ...

We all know that the reason the electrical system uses alternating current is because it’s easy to step the voltage up and down using a transformer, a feature which just isn’t possible with a DC ...

Maxim Integrated has introduced the Max77827, a buck-boost converter featuring a quiescent current (IQ) of 6µA and peak efficiency of 96%. It addresses the power requirements of low-power wide-area ...