A whole series of interesting and seemingly well-designed and -made power supply modules have come out of Rui Deng (Hangzhou Ruideng Technologies) of China over the last year or two. If you read Help ...
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 ...
在一个周期内,当MOS管Q1导通时,二极管D1截止,输入给电感L1储能,输出需要的能量靠输出电容维持;当MOS管Q1关断时,二极管D1导通,输入源和电感L1共同给输出提供能量。 通过理论推导可以得到,Boost的输入输出电压公式为: D为占空比,也就是MOS管Q1的导通 ...
Linear Technology’s LTM4607, the latest member of its μModule family of dc-dc converters, uses a four-switch synchronous MOSFET design to achieve up to 92% efficiency in boost mode (V IN: 5 V, V OUT: ...
Once you set VOUT, an automatic buck-boost architecture maintains the regulated VOUT regardless of whether VIN it is equal to, greater or less than VOUT. 1. Simplified diagram of the LTM8055; the ...