Impulse generator for use with phosphor energizable lamps
    1.
    发明授权
    Impulse generator for use with phosphor energizable lamps 失效
    脉冲发生器,用于磷光体可激发灯

    公开(公告)号:US4288724A

    公开(公告)日:1981-09-08

    申请号:US961976

    申请日:1978-11-20

    申请人: Eli H. Sherman

    发明人: Eli H. Sherman

    摘要: An impulse generator for use with phosphor energizable lamps, e.g. gaseous discharge lamps and electroluminescent lamps, and which eliminates the need of a conventional ballast and starting mechanism. The impulse generator includes a pair of terminals which are adapted to be connected to a conventional source of alternating electrical current with a diode rectifying bridge for rectifying the electrical current. A solid-state circuit switching element is connected to the rectifier and operates in conjunction with a timing means including a resistive capacitive network. Moreover, the solid-state switching element is connected to a primary coil which is coupled to a secondary coil. The secondary coil includes terminals for connection to the lamp. The circuit is operable to generate pulses in a sequence and at time intervals sufficient to maintain energization of the lamp. Thus, the pulses transmitted to the lamp will maintain ignition of the lamp, such that the pulses are applied to the lamp prior to termination of an electric discharge in the lamp. In one of the preferred aspects, the primary and secondary coils form part of a core transformer with the housing sections being separated to create a gap therebetween. In another aspect, the transformer includes an electrically non-conductive spool which holds the windings and with an electrically conductive core located within the non-conductive spool.

    摘要翻译: 用于磷光体可激发灯的脉冲发生器。 气体放电灯和电致发光灯,并且不需要常规的镇流器和起动机构。 脉冲发生器包括一对端子,其适于与二极管整流桥连接到常规的交流电流源,以便整流电流。 固态电路开关元件连接到整流器并与包括电阻性电容网络的定时装置一起工作。 此外,固态开关元件连接到耦合到次级线圈的初级线圈。 次级线圈包括用于连接到灯的端子。 该电路可操作以产生脉冲,其顺序和时间间隔足以维持灯的通电。 因此,传输到灯的脉冲将保持灯的点火,使得在灯中的放电终止之前将脉冲施加到灯。 在优选方面之一中,初级和次级线圈形成芯变压器的一部分,其中壳体部分被分离以在它们之间产生间隙。 在另一方面,变压器包括保持绕组和位于非导电线轴内的导电芯的非导电线轴。

    Generator for use with loads having changing impedance characteristics

    公开(公告)号:US4286194A

    公开(公告)日:1981-08-25

    申请号:US45111

    申请日:1979-06-07

    申请人: Eli H. Sherman

    发明人: Eli H. Sherman

    摘要: A generator for the starting and thereafter maintaining energization and operation of a load which has a relatively high impedance during starting and a substantially lower impedance after starting and during operation thereof. The load may be an ionic conduction lamp including a phosphor excitable lamp in the nature of a fluorescent lamp, or electroluminescent lamp, or vapor lamp. The generator includes a mechanism for generating electrical power with a relatively high voltage and impedance so as to match the relatively high impedance of the load before starting and generization of electrical power of a substantially lower voltage and impedance so as to match the lower impedance of the load during the energizing and operation of the load. The mechanism for generating the electrical power may be an inductive member, such as a coil, and a solid state element, such as a transistor, to develop a voltage over the coil. The coil may be coupled to the lamp through some agent developing a capacitance, e.g., a conductor with a capacitor or stray capacitance between the lamp and the coil. Further a tap intermediate the ends of the coil may be coupled to the load. The capacitance which couples the generator to the lamp before starting is effectively electrically inoperable and out of the circuit after starting of the load. The agent developing the capacitance is located such that the full voltage developed across the coil is delivered to the load during starting, but after starting and during operation only a portion of the voltage developed between one terminal and the tap of the coil is used to drive the load. The generator thereby eliminates the need of a conventional ballast and starting mechanism. In this way, energization of the lamp can be maintained with substantial energy savings compared to prior art ballasts used with ionic conduction lamps. Further energy savings are achieved by generating current and voltage pulses for operating the lamp where the voltage pulses have a greater decay rate to a zero level than the current pulses which have a more gradual decay. Thus, the lamps may be driven by an electric signal where the current pulses are driven by a substantially reduced voltage level for a substantial period of time.

    Impulse generator for use with phosphor energizable lamps
    3.
    发明授权
    Impulse generator for use with phosphor energizable lamps 失效
    脉冲发生器,用于磷光体可激发灯

    公开(公告)号:US4129805A

    公开(公告)日:1978-12-12

    申请号:US857220

    申请日:1977-12-05

    申请人: Eli H. Sherman

    发明人: Eli H. Sherman

    摘要: An impulse generator for use with phosphor energizable lamps, e.g. gaseous discharge lamps and electroluminescent lamps, and which eliminates the need of a conventional ballast and starting mechanism. The impulse generator includes a pair of terminals which are adapted to be connected to a conventional source of alternating electrical current with a diode rectifying bridge for rectifying the electrical current. A solid-state circuit switching element is connected to the rectifier and operates in conjunction with a timing means including a resistive capacitive network. Moreover, the solid-state switching element is connected to a primary coil which is electromagnetically coupled to a secondary coil. The secondary coil includes terminals for connection to the lamp. The circuit is operable to generate pulses in a sequence and at time intervals sufficient to maintain energization of the lamp. Thus, the pulses transmitted to the lamp will cause ignition of the lamp, at least just prior to termination of an electric discharge in the lamp. In one of the preferred aspects, the primary and secondary coils form part of a core transformer with the housing sections being separated to create a gap therebetween. In another aspect, the transformer includes an electrically non-conductive spool which holds the windings and with an electrically conductive core located within the non-conductive spool.

    摘要翻译: 用于磷光体可激发灯的脉冲发生器。 气体放电灯和电致发光灯,并且不需要常规的镇流器和起动机构。 脉冲发生器包括一对端子,其适于与二极管整流桥连接到常规的交流电流源,以便整流电流。 固态电路开关元件连接到整流器并与包括电阻性电容网络的定时装置一起工作。 此外,固态开关元件连接到与次级线圈电磁耦合的初级线圈。 次级线圈包括用于连接到灯的端子。 该电路可操作以产生脉冲,其顺序和时间间隔足以维持灯的通电。 因此,至少恰好在灯的放电终止之前,传输到灯的脉冲将引起灯的点燃。 在优选方面之一中,初级和次级线圈形成芯变压器的一部分,其中壳体部分被分离以在它们之间产生间隙。 在另一方面,变压器包括保持绕组和位于非导电线轴内的导电芯的非导电线轴。