公开(公告)号：KR1020120079759A

公开(公告)日：2012-07-13

申请号：KR1020110001133

申请日：2011-01-05

Applicant: 전남대학교산학협력단

Inventor： 박성준 ,  남해곤 ,  김광헌 ,  김기선 ,  박병우

IPC: H02M3/28

CPC classification number: Y02B70/1491

Abstract: PURPOSE: A zero current switching type DC/DC converter is provided to reduce a switching loss by using a zero current switching method. CONSTITUTION: A zero current switching type DC/DC converter comprises a DC voltage input unit, a high frequency transforming unit(200), and a DC voltage output unit. The DC voltage input unit comprises a voltage source(114) and a switch element. The DC voltage input unit comprises resistance(124) and a second capacitor(122) respectively serially connected to the voltage source and a coil. A third capacity(112) is connected in parallel with the voltage source. The high frequency transforming unit comprises the coil, a first capacitor(134) LC resonating a leakage inductance component of the coil.

Abstract translation: 目的：提供零电流开关型DC / DC转换器，通过使用零电流开关方法来减少开关损耗。 构成：零电流开关型DC / DC转换器包括直流电压输入单元，高频变换单元（200）和直流电压输出单元。 直流电压输入单元包括电压源（114）和开关元件。 直流电压输入单元包括分别串联连接到电压源和线圈的电阻（124）和第二电容器（122）。 第三容量（112）与电压源并联连接。 高频变换单元包括线圈，谐振线圈的漏电感分量的第一电容器（134）LC。

公开(公告)号：KR101120659B1

公开(公告)日：2012-03-16

申请号：KR1020100085140

申请日：2010-08-31

Applicant: 전남대학교산학협력단

Inventor： 박성준 ,  남해곤 ,  김광헌 ,  임영철 ,  임상길

IPC: H05B6/06

Abstract: 본 발명은 전류형 유도가열 시스템에 관한 것으로, 보다 구체적으로는 입력측에 커패시터를 제거하여, 전력효율 고정회로(PFC 회로:Power Factor Correction 회로, 이하 'PFC 회로'라 함)를 사용하지 않고도 단위역률의 입력이 가능하여 고 역률화를 실현할 수 있고, 소자의 파괴나 단락회로 보호에 강인한 단위 역률 입력을 위한 전류형 유도가열 시스템에 관한 것이다.

公开(公告)号：KR1020120021141A

公开(公告)日：2012-03-08

申请号：KR1020110001156

申请日：2011-01-05

Applicant: 전남대학교산학협력단

Inventor： 박성준 ,  남해곤 ,  김광헌 ,  임영철 ,  최상규

IPC: H02M3/28 ,  H02M7/48

CPC classification number: Y02B70/1491

Abstract: PURPOSE: A synchronous DC/DC converter of a zero voltage switching mode using a tab transformer is provided to minimize rectification loss by forming switching devices of a rectifier part by using a MOSFET(Metal Oxide Semiconductor Field Effect Transistor) switch instead of a diode. CONSTITUTION: One end of a chopper switch(110) is connected to one end of a DC input voltage. An inverter unit(120) is connected to the other end of the chopper switch and one end of an input voltage. The inverter unit outputs an AC voltage by switching the input voltage. One end of a free wheeling device(130) is connected between the chopper switch and the inverter part. The other end of the free wheeling device is connected to the other end of the DC input voltage. The free wheeling device forms reflux pass in an off-state of the chopper switch. A tap transformer(140) transforms the AC voltage. A rectifier(150) is connected to an output end of the tap transformer. The rectifier performs a switching operation through synchronization with the inverter unit.

Abstract translation: 目的：使用标签变压器进行零电压开关模式的同步DC / DC转换器，通过使用MOSFET（金属氧化物半导体场效应晶体管）开关代替二极管，通过形成整流器部分的开关器件来最小化整流损耗。 构成：斩波开关（110）的一端连接到直流输入电压的一端。 逆变器单元（120）连接到斩波开关的另一端和输入电压的一端。 逆变器单元通过切换输入电压来输出交流电压。 斩波开关与逆变器部分之间连接有一个续流装置（130）的一端。 续流装置的另一端连接到直流输入电压的另一端。 自由轮装置在切断开关的断开状态下形成回流通道。 抽头变压器（140）转换交流电压。 整流器（150）连接到抽头变压器的输出端。 整流器通过与逆变器单元同步来执行切换操作。

公开(公告)号：KR1020120021089A

公开(公告)日：2012-03-08

申请号：KR1020100085140

申请日：2010-08-31

Applicant: 전남대학교산학협력단

Inventor： 박성준 ,  남해곤 ,  김광헌 ,  임영철 ,  임상길

IPC: H05B6/06

CPC classification number: H05B6/06 ,  H02M7/4826 ,  H02M2007/4815 ,  H05B1/02 ,  H05B6/04 ,  Y02B70/1441

Abstract: PURPOSE: A current type induction heating system for inputting a unity power factor is provided to protect a short circuit by using a current source as the input of a resonance part. CONSTITUTION: A rectifier(110) outputs DC power by rectifying commercial electricity. A convertor part(120) generates an input current source by switching the DC power outputted from the rectifier. The convertor part outputs the input current source generated to a resonance part(140). The convertor part comprises a switch(121), an input side inductor(122), and a free wheeling diode(123). The inverter unit performs a switching operation to apply the input current source to the resonance part to forward direction and reverse directions. The inverter unit comprises a first switching device(131), a second switching device(132), a third switching device(133), and a fourth switching device(134). The resonance part changes a switched input current source in the inverter unit into an electromagnetism.

Abstract translation: 目的：提供用于输入单位功率因数的电流式感应加热系统，以通过使用电流源作为谐振部件的输入来保护短路。 构成：整流器（110）通过整流商用电力输出直流电力。 转换器部件（120）通过切换从整流器输出的直流电力来产生输入电流源。 转换器部分将产生的输入电流源输出到共振部分（140）。 转换器部分包括开关（121），输入侧电感器（122）和续流二极管（123）。 逆变器单元执行切换操作以将输入电流源施加到谐振部分以向前和向后的方向。 逆变器单元包括第一开关装置（131），第二开关装置（132），第三开关装置（133）和第四开关装置（134）。 谐振部分将逆变器单元中的开关输入电流源变为电磁。