Discharge lamp lighting device
    1.
    发明授权
    Discharge lamp lighting device 失效
    放电灯照明装置

    公开(公告)号:US4187448A

    公开(公告)日:1980-02-05

    申请号:US858473

    申请日:1977-12-07

    摘要: Discharge lamps are connected to a commerical alternating current power supply through an impedance for blocking high frequency signals and an impedance compensating for the negative resistance of the discharge lamps. The discharge lamps are also connected to the commercial alternating current power supply through a rectifier and oscillator circuit, a voltage signal is generated including the commercial alternating current voltage superposed on a high-frequency, high-voltage signal from the oscillator. This voltage signal is applied to the discharge lamps to energize the same and maintain the lamps in a lighted condition.

    摘要翻译: 放电灯通过用于阻挡高频信号的阻抗和补偿放电灯的负电阻的阻抗连接到商用交流电源。 放电灯还通过整流器和振荡器电路连接到商用交流电源,产生电压信号,包括叠加在来自振荡器的高频高电压信号上的商用交流电压。 该电压信号被施加到放电灯以对其通电并将灯保持在点亮状态。

    Light control device for high frequency lighted fluorescent lamp
    2.
    发明授权
    Light control device for high frequency lighted fluorescent lamp 失效
    高频点灯荧光灯控制装置

    公开(公告)号:US4158792A

    公开(公告)日:1979-06-19

    申请号:US842338

    申请日:1977-10-14

    摘要: A light control device for a high frequency lighted fluorescent lamp includes a high frequency variable voltage power source. A first impedance element (a capacitor and inductor in series) is provided between the terminals of the lamp on the side opposite to the power source. A second impedance element (an inductor) is connected between the power source and the terminals of the lamp, and a third impedance element (a capacitor) is connected across the lamp on the power source side. A constant power source circuit supplies, upon starting of the lamp, constant power to the first impedance element to thereby apply substantially constant cathode pre-heating current and starting voltage and applies, during the lighting of the lamp, substantially constant cathode heating current. The control circuit is capable of pre-set light control. The light control device suppresses beat interference and fluorescent lamp noises due to the electric field radiated from the lamp. Rapid and instant starting is enabled. The solid state ballast is suitable for fluorescent lamp appliances for domestic use and permits use as an emergency lamp.

    摘要翻译: 一种用于高频照明荧光灯的光控制装置包括高频可变电压电源。 在与电源相反的一侧的灯的端子之间设置有第一阻抗元件(串联的电容器和电感器)。 第二阻抗元件(电感器)连接在电源和灯的端子之间,并且第三阻抗元件(电容器)连接在电源侧的灯之间。 恒定电源电路在启动灯时提供恒定的功率到第一阻抗元件,从而施加基本恒定的阴极预热电流和启动电压,并且在灯的点亮期间施加基本恒定的阴极加热电流。 控制电路能够预先设定灯光控制。 光控制装置抑制由于从灯辐射的电场引起的节拍干扰和荧光灯噪声。 快速即时启动启用。 固态镇流器适用于家用荧光灯设备,并可用作应急灯。