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    Static inverter
    1.
    发明授权
    Static inverter 失效
    静态逆变器

    公开(公告)号：US3914680A

    公开(公告)日：1975-10-21

    申请号：US54186775

    申请日：1975-01-17

    Applicant: GEN ELECTRIC

    Inventor： HESLER JOSEPH P ,  KORZEKWA SAMUEL M

    IPC: H02M7/5383 ,  H02M7/53846 ,  H02M7/53862 ,  H02M7/48

    CPC classification number: H02M7/53862 ,  H02M7/53846

    Abstract: A static inverter is disclosed for d.c. to a.c. conversion comprising a pair of switching semiconductor devices and a power transformer having primary, secondary and feedback windings associated with a linear magnetic core. A small perforation partitions the core into two localized branches at the same time forming a small magnetic loop encircling the perforation. Both power windings encircle the full core, while the feedback windings are associated with one of the branches. One branch is designed to saturate before the other branch and thus before full core saturation. Saturation of one branch affects the feedback derived in a winding encircling either branch - decreasing the feedback in the winding encircling the saturated branch and increasing the feedback in the winding encircling the branch remaining unsaturated. The arrangement permits cyclical control of the feedback to avoid full core saturation and thus avoids overstressing the switching devices. The feedback windings are typically single turn windings. The introduction of an additional single turn primary winding connected in the primary power circuit creates a virtual current transformer utilizing the small magnetic loop which makes the feedback drive proportional to load current. The arrangement is reliable and economical in its use of materials.

    Abstract translation: 公开了一种静态逆变器，用于直流 到a.c. 转换器包括一对开关半导体器件和具有与线性磁芯相关的初级，次级和反馈绕组的电力变压器。 小的穿孔将芯分成两个局部分支，同时形成一个环绕穿孔的小磁环。 两个功率绕组环绕整个芯，而反馈绕组与其中一个分支相关联。 一个分支设计成在另一个分支之前饱和，从而在全核饱和之前饱和。 一个分支的饱和影响环绕任一分支的绕组中产生的反馈 - 减小围绕饱和分支的绕组中的反馈，并增加围绕分支保持不饱和的绕组中的反馈。 该布置允许反馈的周期性控制以避免全核饱和，并且因此避免了对开关器件的过应力。 反馈绕组通常是单匝绕组。 引入连接在主电源电路中的附加单匝初级绕组产生利用小磁环的虚拟电流互感器，其使得反馈驱动与负载电流成比例。 该装置在使用材料方面是可靠和经济的。

    Power supply for a thermionic emission gas discharge lamp
    4.
    发明授权
    Power supply for a thermionic emission gas discharge lamp 失效
    用于热电子发射气体放电灯的电源

    公开(公告)号：US3904925A

    公开(公告)日：1975-09-09

    申请号：US40246173

    申请日：1973-10-01

    Applicant: GEN ELECTRIC

    Inventor： KORZEKWA SAMUEL M ,  PEIL WILLIAM

    IPC: H02M1/08 ,  H03K3/57 ,  H05B41/04 ,  H05B37/00

    CPC classification number: H02M1/081 ,  H03K3/57 ,  H05B41/042 ,  Y10S315/05

    Abstract: The present invention relates to a power supply for a gas discharge lamp such as a xenon arc lamp normally operating in the thermionic emission mode. The power supply is energized from an a.c. line and includes a d.c. source of low voltage and high current for sustained operation and a starter. During starting, the starter provides a succession of high voltage trigger pulses for initiating the gas discharge and a succession of unidirectional, medium voltage power pulses synchronized with the trigger pulses for heating the lamp to thermionic emission temperature. The medium voltage pulses are portions of half cycles derived from the a.c. line and applied to the lamp without filtering or energy storage. The circuit uses low cost components and provides a gradual warm-up of the lamp with a minimum of thermal shock.

    Abstract translation: 本发明涉及一种通常以热电子发射模式工作的氙弧灯等气体放电灯的电源。 电源从一个交流电 线，包括一个直径 用于持续运行的低电压和高电流源和起动器。 起动期间，起动器提供一连串的高电压触发脉冲，用于启动气体放电，以及一系列与用于将灯加热至热离子发射温度的触发脉冲同步的单向中压电源脉冲。 中压脉冲是从a.c.得到的半周期的部分。 线路并应用于灯没有过滤或储能。 该电路使用低成本元件，并以最少的热冲击提供灯的逐渐预热。

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