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    • 4. 发明公开
    • 방전램프 점등장치 및 조명기구
    • 电子镇流器和照明灯具
    • KR1020040002725A
    • 2004-01-07
    • KR1020030041848
    • 2003-06-26
    • 도시바 라이텍쿠 가부시키가이샤
    • 오타케히로카즈다카하시고지데라사카히로시고즈카히데오
    • H05B41/16
    • H05B41/3925H05B41/2827
    • PURPOSE: An electronic ballast and a lighting fixture are provided to stabilize an output of a load circuit while the temperature of a current transformer is changed. CONSTITUTION: A driving circuit(5) is arranged between a switching circuit(3) and a load circuit(4). The driving circuit is provided with feedback wires(CT1b,CT1c) magnetically connected to a detecting wire of a current transformer(CT1). The driving circuit is configured to control a switching frequency of first and second switching elements(Q1,Q2) according to the detected current of the detecting coil. A magnetic energy control device(6) is configured to control the magnetic energy of the current transformer. A current detecting device(7) detects the average current either the output current of the direct current power supply or the current of the switching circuit. A current control device(8) is configured to control the magnetic energy control device and to fix the average current to a designated value.
    • 目的:提供电子镇流器和照明器具,以在电流互感器的温度改变时稳定负载电路的输出。 构成:驱动电路(5)布置在开关电路(3)和负载电路(4)之间。 驱动电路设有与电流互感器(CT1)的检测线磁性连接的反馈线(CT1b,CT1c)。 驱动电路被配置为根据检测线圈的检测电流来控制第一和第二开关元件(Q1,Q2)的开关频率。 磁能控制装置(6)被配置为控制电流互感器的磁能。 电流检测装置(7)检测直流电源的输出电流或开关电路的电流的平均电流。 电流控制装置(8)被配置为控制磁能控制装置并将平均电流固定为指定值。
    • 9. 发明公开
    • 방전램프점등장치및조명장치
    • 放电灯照明设备和照明设备
    • KR1019990083245A
    • 1999-11-25
    • KR1019990013517
    • 1999-04-16
    • 도시바 라이텍쿠 가부시키가이샤
    • 오타케히로카즈
    • H05B41/16
    • H05B41/28Y10S315/02
    • 종래기술과다른회로를채용하여, 역율이높고, 또한고조파왜를저감시킨방전램프점등장치및 이것을이용한조명장치를제공한다. 저주파교류전원에접속되는노이즈필터의후단에제1 및제2콘덴서의직렬회로와전파정류기의교류입력단을접속하고, 전파정류기의직류출력단사이에평활화수단을접속하며, 직렬접속된제1 및제2스위칭수단에평활화직류전압을인가하고, 제1 및제2스위칭수단이교대로스위칭됨에따라생기는고주파에의해, 방전램프, 방전램프와직렬접속된전류제한인덕턴스및 전류제한인덕턴스와직렬접속되어고주파에대하여직렬공진회로를형성하는제3콘덴서를구비한부하회로를작동시킴과동시에, 제1 및제2콘덴서의접속점과부하회로의사이를고주파전류통로에서접속하고, 또한제1 및제2스위칭수단의적어도한쪽및 부하회로와폐회로를형성하며, 또한전류제한인덕턴스와직렬공진회로를형성하는제4콘덴서를설치하였다. 평활화수단으로서, 평활콘덴서, 부분평활회로등을이용할수 있다. 스위칭수단이교대로스위칭하기위해서는, 자려, 타려어느쪽으로제어하여도좋다.