Power factor compensating electroluminescent lamp DC/AC inverter
    81.
    发明授权
    Power factor compensating electroluminescent lamp DC/AC inverter 失效
    功率因数补偿电致发光灯DC / AC逆变器

    公开(公告)号:US4254362A

    公开(公告)日:1981-03-03

    申请号:US61929

    申请日:1979-07-30

    摘要: This invention is a circuit to invert DC to AC for the operation of electroluminescent lamps. A primary winding of a transformer is in series with a power source and the input or output of the switching device. The output of the switching device is connected back to the power source. The secondary winding of the transformer is in series with an electroluminescent lamp and the controller side of the switching device. The secondary winding doubles as both the output to the electroluminescent lamp and the feedback winding to the controller side of the switching device. The electroluminescent lamp doubles both as the load and limiting impedance to the controller side of the switching device.

    摘要翻译: 本发明是用于将DC转换成AC以用于电致发光灯的操作的电路。 变压器的初级绕组与电源和开关装置的输入或输出串联。 开关装置的输出端连接回电源。 变压器的次级绕组与电致发光灯和开关装置的控制器侧串联。 次级绕组同时作为电致发光灯的输出和到开关装置的控制器侧的反馈绕组。 电致发光灯作为开关装置的控制器侧的负载和限制阻抗都加倍。

    Inverter ballast circuit
    82.
    发明授权
    Inverter ballast circuit 失效
    逆变器镇流器电路

    公开(公告)号:US4023067A

    公开(公告)日:1977-05-10

    申请号:US601255

    申请日:1975-08-04

    摘要: An inverter circuit suitable for use as a fluorescent lamp inverter ballast is disclosed. The inverter has the capability of starting the fluorescent lamp through regenerative feed-back techniques made possible by the amplification characteristic of the inverter switching transistor. Good efficiency at high frequency is provided by minimizing the transistor switching losses through use of resonant storage techniques and an unique feed-back system. Further, the normal energy lost in the feed-back circuit is eliminated by combining the resonant load means and the feed-back means into a single structure.

    摘要翻译: 公开了一种适用于荧光灯逆变器镇流器的逆变电路。 逆变器具有通过逆变器开关晶体管的放大特性可能的再生反馈技术启动荧光灯的能力。 通过使用谐振存储技术和独特的反馈系统最小化晶体管开关损耗来提供高频率的高效率。 此外,通过将谐振负载装置和反馈装置组合成单一结构来消除反馈电路中损耗的正常能量。

    Electric lighting systems
    83.
    发明授权
    Electric lighting systems 失效
    电照明系统

    公开(公告)号:US4004185A

    公开(公告)日:1977-01-18

    申请号:US571509

    申请日:1975-04-25

    摘要: A method and apparatus of lighting a cold cathode electric gas discharge lamp in which the lamp is connected across the secondary winding of a voltage step-up transformer, and the primary winding of the transformer is energized with a chopped D.C. voltage having a frequency of at least 12 kHz and a voltage which provides an output voltage from the secondary winding having an R.M.S. value no greater than 700 volts.

    摘要翻译: 一种照明冷阴极电气放电灯的方法和装置,其中灯连接在升压变压器的次级绕组两端,并且变压器的初级绕组由具有频率为 至少12kHz以及提供来自具有RMS的次级绕组的输出电压的电压 值不大于700伏。

    Timed switch circuits utilizing minority carrier injection in a semiconductor device
    84.
    发明授权
    Timed switch circuits utilizing minority carrier injection in a semiconductor device 失效
    在半导体器件中使用少量载体注入的定时开关电路

    公开(公告)号:US3875432A

    公开(公告)日:1975-04-01

    申请号:US18843071

    申请日:1971-10-21

    申请人: IBM

    发明人: SAIA JERRY

    CPC分类号: H02M1/32 H02M3/338 H03K3/33

    摘要: A family of circuits characterized by storage mode operation in a switching circuit employs minority carrier injection from the base into the collector region of a semi-conductor device. The minority carrier charge stored in the collector thereafter causes amplified forward collector emitter current when forward collector potential is applied. Particular examples of the circuit family includes inverters, single shot circuits transistor oscillators and electronic switching in general.

    摘要翻译: 在开关电路中以存储模式操作为特征的电路系列使用从基极到半导体器件的集电极区域的少数载流子注入。 此后收集的少数载流子电荷在施加正向集电极电位时会产生放大的正向集电极发射极电流。 电路系列的具体实例包括逆变器,单次电路晶体管振荡器和电子开关。

    Inverter
    85.
    发明授权
    Inverter 失效
    逆变器

    公开(公告)号:US3753075A

    公开(公告)日:1973-08-14

    申请号:US3753075D

    申请日:1972-07-03

    申请人: HITACHI K LTD

    发明人: TOMURA T IYAMA H

    IPC分类号: H02M3/338 H02M H03B

    CPC分类号: H02M3/338

    摘要: An inverter for transforming a d.c. current to an a.c. current comprising, a switching transistor and an output transformer having a primary winding connected to the collector of the transistor, a current transformer having a primary winding connected to the primary winding of the output transformer and a secondary winding connected to the base of the switching transistor, a coupling capacitor inserted between said base of the transistor and the secondary winding of the current transformer, a capacitor parallelly connected to the primary winding of the output transformer, the primary windings of the output and current transformers and said capacitor forming a resonance circuit to control the oscillation.

    摘要翻译: 用于转换直流电的逆变器 目前到a.c. 电流,包括开关晶体管和输出变压器,其具有连接到晶体管的集电极的初级绕组,具有连接到输出变压器的初级绕组的初级绕组的电流互感器和连接到开关晶体管的基极的次级绕组 插入在所述晶体管的所述基极和所述电流互感器的次级绕组之间的耦合电容器,并联地连接到所述输出变压器的初级绕组的电容器,所述输出和电流互感器的初级绕组以及所述电容器形成谐振电路 控制振荡。

    Self-exciting type high voltage generating apparatus utilizing piezolectric voltage transforming elements
    86.
    发明授权
    Self-exciting type high voltage generating apparatus utilizing piezolectric voltage transforming elements 失效
    自激式高压发生装置利用压电电压变换元件

    公开(公告)号:US3679918A

    公开(公告)日:1972-07-25

    申请号:US3679918D

    申请日:1970-06-19

    发明人: KEIZI INOUE

    CPC分类号: H02M3/338

    摘要: In a self-exciting type high voltage generating apparatus utilizing a piezolectric voltage transforming element driven by an oscillator, a capacitive feedback circuit is provided between the output of the piezolectric voltage transforming element and the oscillator to lock the oscillation frequency of the oscillator to the resonance frequency of the piezolectric voltage transforming element.

    摘要翻译: 在利用由振荡器驱动的压电变换元件的自激式高压发生装置中,在压电电压变换元件的输出端与振荡器之间设置电容性反馈电路,以将振荡器的振荡频率锁定到谐振 压电电压变换元件的频率。