公开(公告)号：KR101200820B1

公开(公告)日：2012-11-13

申请号：KR1020110128260

申请日：2011-12-02

Applicant: 전남대학교산학협력단

Inventor： 박성준 ,  김승룡 ,  남해곤 ,  김진배

IPC: H02M3/155 ,  H02M1/42

Abstract: PURPOSE: A boost converter of a soft switching mode is provided to improve power conversion efficiency by offering switching loss of a main switch through resonance of leakage inductance of a capacitor and a transformer. CONSTITUTION: An anode of a second circulating diode(116) is connected to a terminal between a main switch and an inductor for resonance. A cathode of the second circulating diode is connected to one end of the capacitor for resonance. One end of an auxiliary switch(117) is connected to a terminal between the second circulating diode and the capacitor for resonance. A primary side of a transformer(118) is connected to the other end of the auxiliary switch and a minus terminal of an input power source. A secondary side of the transformer is connected to an output terminal and a plus terminal of the input power source.

Abstract translation: 目的：提供软开关模式的升压转换器，通过电容器和变压器的漏电感的谐振提供主开关的开关损耗来提高功率转换效率。 构成：第二循环二极管（116）的阳极连接到主开关和用于谐振的电感器之间的端子。 第二循环二极管的阴极连接到用于谐振的电容器的一端。 辅助开关（117）的一端连接到第二循环二极管和用于谐振的电容器之间的端子。 变压器（118）的初级侧连接到辅助开关的另一端和输入电源的负端子。 变压器的次级侧连接到输入电源的输出端子和正极端子。

公开(公告)号：KR1020120021140A

公开(公告)日：2012-03-08

申请号：KR1020110001155

申请日：2011-01-05

Applicant: 전남대학교산학협력단

Inventor： 박성준 ,  남해곤 ,  김광헌 ,  임영철 ,  김승룡

IPC: H02M3/28 ,  H02M7/48

CPC classification number: Y02B70/1491

Abstract: PURPOSE: A synchronous DC/DC converter of a zero voltage switching mode is provided to reduce rectification loss by using not a diode but a MOSFET(Metal Oxide Semiconductor Field Effect Transistor) switch. CONSTITUTION: One end of a chopper switch(110) is connected to one end of a DC input voltage. The chopper switch performs a function of making an input voltage be discontinued. An inverter unit(120) is connected to the other end of the chopper switch and the other end of the input voltage. The inverter unit outputs an AC voltage by switching the input voltage. A transformer(140) transforms the AC voltage. A rectifier(150) is synchronized with the inverter unit to perform a switching operation. The rectifier outputs a DC output voltage by rectifying an output voltage of the transformer. The inverter unit switches the input voltage in an off-state of the chopper switch.

Abstract translation: 目的：提供零电压开关模式的同步DC / DC转换器，通过使用二极管，但不使用MOSFET（金属氧化物半导体场效应晶体管）开关来减少整流损耗。 构成：斩波开关（110）的一端连接到直流输入电压的一端。 斩波开关执行使输入电压中断的功能。 逆变器单元（120）连接到斩波开关的另一端和输入电压的另一端。 逆变器单元通过切换输入电压来输出交流电压。 变压器（140）转换交流电压。 整流器（150）与逆变器单元同步以进行开关操作。 整流器通过整流变压器的输出电压输出直流输出电压。 变频器单元将输入电压切换到斩波开关的断开状态。