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    • 7. 发明授权
    • 전기집진용펄스전원장치및그보호방법
    • KR100433356B1
    • 2004-08-16
    • KR1019970054934
    • 1997-10-24
    • 오리진 덴키 가부시키가이샤
    • 아라이노부유키
    • H02M7/10
    • PROBLEM TO BE SOLVED: To surely protect a high voltage semiconductor switch from overvoltage by turning the high voltage semiconductor switch ON, when surge voltage generating at a spark time is going to ascend higher than specified voltage set higher than voltage impressed on the high voltage semiconductor switch at a steady-state time. SOLUTION: This device is provided with a pulse generation circuit constituted of the high voltage semiconductor switch 3 (hereafter switch) connected to a first direct current power source 1, a reverse current feed back means 4 connected to the switch 3 in a reverse-parallel, a resonance inductance 5, and a resonance condenser 6. Pulse is generated by turning the switch 3 On and OFF, and dust collection is performed by impressing the pulse output on a dust collection room 7. In this case, a turn ON circuit 12 at a spark time is connected to a control electrode of the semiconductor constituting the switch 3, and the turn ON circuit 12 at a spark time is operated with overvoltage generated due to spark at the dust collection room 7 to turn the semiconductor ON. Thus, the switch 3 is protected from overvoltage.
    • 要解决的问题:通过接通高压半导体开关以确保保护高压半导体开关免于过电压,当在火花时间产生的浪涌电压将升高到高于设定为高于施加在高电压半导体上的电压的设定电压时 在稳定的时间切换。 本发明提供了一种脉冲发生电路,其由连接到第一直流电源1的高压半导体开关3(以下称为开关),以反向并联方式连接到开关3的反向电流反馈装置4 ,谐振电感5和谐振电容器6.通过打开和关闭开关3产生脉冲,并通过将脉冲输出施加在集尘室7上来执行集尘。在这种情况下,接通电路12 在火花时间连接到构成开关3的半导体的控制电极,并且火花时间的接通电路12由于在集尘室7处由于火花而产生的过电压而被操作,以接通半导体。 因此,开关3被保护免于过电压。
    • 9. 实用新型
    • 고온플라즈마용 배전압 정류장치
    • 用于高温等离子体的电压调节器
    • KR200261169Y1
    • 2002-01-19
    • KR2020010033622
    • 2001-11-02
    • 박현우
    • 박현우
    • H02M7/10H02M3/07
    • 본 고안은 고온플라즈마용 배전압 정류장치에 관한 것으로써, 인버터 회로부 고주파 트랜스의 2차 코일의 권선수를 감소시켜 발생된 저전압을 양배압 정류하여 초기 아크 발생시의 전압을 보상하고 이 후, 아크 유지시의 감소된 저항값을 고전류에 의해 보상하여 효율을 증대시킨 고온플라즈마용 배전압 정류장치에 관한 것이다. 이를 위한 본 고안은 전원공급부로부터 공급되는 교류전원을 정류하는 저주파 정류부로부터 유입되는 직류를 인버터하여 고주파 트랜스부의 2차 코일에 고주파 교류를 인가하는 인버터 회로부와, 상기 인버터 회로부로부터 투입되는 상기 고주파 교류를 정류하여 전극간에 방전하는 고주파 정류부를 포함하는 고온플라즈마용 정류장치에 있어서, 상기 고주파 정류부로부터 정류되는 전기량에 의해 배전압으로 충전되어 상기 전극간에 고압 방전하는 충전부를 포함하는 것을 특징으로 한다.
    • 10. 发明公开
    • 복수 배압 발생회로
    • 多电压电压发生电路
    • KR1020010093974A
    • 2001-10-31
    • KR1020000017306
    • 2000-04-03
    • 주식회사 한국전자홀딩스
    • 홍문헌
    • H02M7/10
    • PURPOSE: A multiplied voltage generating circuit is provided to reduce weight and size of the circuit and reduce switching noise by generating multiplied power voltages having multiple double levels without using an additional boosting switching transformer. CONSTITUTION: A multiplied voltage generating circuit comprises a micro computer(22) having two output terminals(OUT20,OUT21), and which outputs first and second switching pulse signals having inverted phases through output terminals; a first switching unit(24) for switching the power voltage output from a power circuit unit(20) in accordance with the first switching pulse signal output from the micro computer, and generating a pulse signal; a second switching unit(26) for switching the power voltage output from the power circuit unit in accordance with the second switching pulse signal output from the micro computer, and generating a pulse signal; and a voltage doubler rectifier(28) for inputting pulse signals output from first and second switching units in such a manner that pulse signals have inverted phases, respectively, rectifying input signals, and outputting power voltages having multiple double levels. First and second switching units have transistors(Q21,Q22,Q23,Q24) which are turned on/off in accordance with switching pulse signals output from the micro computer and switch positive power and negative power of the power circuit unit, respectively.
    • 目的:提供一个倍增电压发生电路,以减少电路的重量和尺寸,并通过在不使用额外的升压开关变压器的情况下,产生具有多个双电平的倍增电源电压来降低开关噪声。 构成:倍增电压发生电路包括具有两个输出端子(OUT20,OUT21)的微型计算机(22),并通过输出端子输出具有反相的第一和第二开关脉冲信号; 第一开关单元(24),用于根据从微计算机输出的第一开关脉冲信号切换从电力电路单元(20)输出的电力电压,并产生脉冲信号; 第二切换单元(26),用于根据从微计算机输出的第二切换脉冲信号切换从电力电路单元输出的电力电压,并产生脉冲信号; 以及电压倍增器整流器(28),用于输入从第一和第二开关单元输出的脉冲信号,使得脉冲信号分别具有反相,整流输入信号,以及输出具有多个双电平的电压。 第一和第二开关单元具有根据从微计算机输出的切换脉冲信号导通/截止的晶体管(Q21,Q22,Q23,Q24),并分别切换电源电路单元的正功率和负功率。