Discharge lamp driving
    1.
    发明授权
    Discharge lamp driving 失效
    放电灯驱动

    公开(公告)号:US5932976A

    公开(公告)日:1999-08-03

    申请号:US783557

    申请日:1997-01-14

    摘要: A discharge lamp driving circuit includes DC voltage input connections, lamp driving connections, bridge circuitry, and control circuitry. The bridge circuitry is connected to the DC voltage input connections and to the lamp driving connections and includes circuit elements which in one mode of operation deliver a higher frequency AC voltage to the lamp driving connections and in another mode of operation deliver a lower frequency AC voltage to the lamp driving connections. The control circuitry is connected to control the bridge circuitry selectively as either a half-bridge to deliver the higher frequency AC voltage to the lamp driving connections during starting or a full-bridge to deliver only the lower frequency AC operating voltage to the lamp while the lamp is operating normally after starting. A low frequency driver and a high frequency driver are connected to drive the bridge circuitry.

    摘要翻译: 放电灯驱动电路包括直流电压输入连接,灯驱动连接,桥接电路和控制电路。 桥接电路连接到直流电压输入连接和灯驱动连接,并且包括电路元件,其在一种操作模式中向灯驱动连接提供较高频率的交流电压,并且在另一种操作模式中提供较低频率的交流电压 到灯驱动连接。 控制电路被连接以选择性地控制桥式电路作为半桥,以在启动期间将全高桥交流电压提供给灯驱动连接或全桥以将仅较低频率的交流工作电压传送到灯,同时 灯起动后运行正常。 连接低频驱动器和高频驱动器来驱动桥式电路。

    Power source device
    2.
    发明授权
    Power source device 失效
    电源设备

    公开(公告)号:US5644480A

    公开(公告)日:1997-07-01

    申请号:US235346

    申请日:1994-04-29

    摘要: A power source device for supplying a high frequency AC voltage to a load. An source voltage is changed by a rectifier into a into a DC voltage that is supplied to an inverter to produce the high frequency AC voltage. The high frequency AC voltage is fed back to the rectifier where a resonant circuit resonates with the high frequency AC voltage. The inverter may be self-excited through feedback of the high frequency AC voltage. In this power source device, any pausing in the AC source voltage is filled in through the feedback and resonant circuits.

    摘要翻译: 一种用于向负载提供高频AC电压的电源装置。 源极电压被整流器改变为提供给逆变器以产生高频AC电压的直流电压。 高频AC电压被反馈到整流器,其中谐振电路与高频AC电压谐振。 逆变器可以通过高频交流电压的反馈自激。 在该电源装置中,通过反馈和谐振电路填充AC电源电压中的任何暂停。

    Discharge lamp lighting device
    3.
    发明授权
    Discharge lamp lighting device 有权
    放电灯照明装置

    公开(公告)号:US6118224A

    公开(公告)日:2000-09-12

    申请号:US399161

    申请日:1999-09-20

    IPC分类号: H05B41/28 H05B37/00

    CPC分类号: H05B41/28

    摘要: A discharge lamp lighting device includes an inverter circuit connected through a first impedance element across output ends of a rectifier rectifying an AC source power, a smoothing capacitor inserted through a discharging diode in a power supply path to the inverter circuit, and a series circuit of a second impedance element, discharge lamp and inductor and connected between an output end of the inverter circuit and one output end of the rectifier, wherein a path for charging the smoothing capacitor is formed through a switching element included in the inverter circuit, and the discharging diode.

    摘要翻译: 一种放电灯点亮装置,包括:逆变器电路,通过整流整流AC电源的整流器的输出端通过第一阻抗元件连接;平滑电容器,其插入到逆变器电路的电源路径中的放电二极管;以及串联电路 第二阻抗元件,放电灯和电感器,并且连接在逆变器电路的输出端和整流器的一个输出端之间,其中通过包括在逆变器电路中的开关元件形成用于对平滑电容器充电的路径,并且放电 二极管。

    Power supply having a chopper with an improved power factor
    4.
    发明授权
    Power supply having a chopper with an improved power factor 失效
    电源具有功率因数提高的斩波器

    公开(公告)号:US5517399A

    公开(公告)日:1996-05-14

    申请号:US117842

    申请日:1993-09-07

    IPC分类号: H02M1/08 H02M3/156 G05F1/613

    CPC分类号: H02M3/1563 H02M1/081

    摘要: A power supply with a full-wave rectifier and a chopper having an inductor and a transistor connected in series across the rectifier. The transistor is switched on and off providing an interrupted voltage which is applied across a smoothing capacitor, via a blocking diode, to produce a smoothed DC voltage for driving a load. When the transistor is turned on, current from the rectifier is drawn through the inductor. When the transistor is turned off, the current through the inductor is conducted, in a positive direction, to the smoothing capacitor. The inductor and parasitic capacitance inherently present in the chopper create oscillations which allow current to flow through the inductor in a negative direction. A controller turns the transistor on at a time when the current flows in the negative direction and turns the transistor off after a predetermined on-period so as to release the current through the inductor, thereby causing the current to first flow in the negative direction and then in the positive direction through the inductor during the on-period. An input current wave shaping circuit is provided so that for each on-period, the amount of current flowing continuously through the inductor in the negative direction occurring immediately after the turning on of the transistor is less than the amount of current flowing through the inductor in the positive direction.

    摘要翻译: 具有全波整流器的电源和具有串联连接在整流器上的电感器和晶体管的斩波器。 晶体管被接通和断开,提供通过阻塞二极管施加在平滑电容器上的中断电压,以产生用于驱动负载的平滑DC电压。 当晶体管导通时,来自整流器的电流通过电感器被吸入。 当晶体管关断时,通过电感器的电流在正方向传导到平滑电容器。 斩波器中固有地存在的电感器和寄生电容产生振荡,其允许电流沿负方向流过电感器。 控制器在电流在负方向上流动的同时使晶体管导通,并在预定的导通周期之后关断晶体管,以释放通过电感器的电流,从而使电流首先沿负方向流动, 然后在导通期间通过电感器的正方向。 提供输入电流波形整形电路,使得对于每个导通周期,在晶体管接通之后立即发生的在负方向上连续通过电感器的电流量小于流经电感器的电流量 积极的方向。

    Power supply for supplying AC output power
    5.
    发明授权
    Power supply for supplying AC output power 失效
    用于提供交流输出电源的电源

    公开(公告)号:US6057652A

    公开(公告)日:2000-05-02

    申请号:US598872

    申请日:1996-02-09

    摘要: High voltage stress on the semiconductor devices at light load conditions, high total harmonic distortion (THD) of the line current, and poor crest factor (CF) of lamp current of "charge pump" electronic ballast circuits make them difficult to manufacture cost-effectively. To overcome these deficiencies, the DC bus voltage is reduced at light loads by providing a second resonance. One technique, high-frequency second-stage resonance, provides sufficient preheating at low V.sub.dc. Combined with the instant startup and the proper restart scheme, this technique can greatly reduce the maximum V.sub.dc at ignition. Another technique, low-frequency second-stage resonance, can reduce the steady state V.sub.dc at light loads, including during start-up. Consequently, high ignition voltage can be continuously impressed on the lamp without increasing V.sub.dc. Further, a diode clamping technique smooths the envelope of V.sub.a, thereby achieving near unity power factor, low THD and low CF without close-loop control.

    摘要翻译: 在轻负载条件下,半导体器件上的高电压应力,线电流的总谐波失真(THD)和“电荷泵”电子镇流器电路的灯电流差峰值因数(CF)使得它们难以成本有效地制造 。 为了克服这些缺陷,通过提供第二共振,在轻负载时直流母线电压降低。 一种技术,高频第二级谐振在低Vdc下提供足够的预热。 结合即时启动和正确的重启方案,该技术可以大大降低点火时的最大Vdc。 另一种技术,低频第二级谐振可以减轻轻载时的稳态Vdc,包括启动期间。 因此,在不增加Vdc的情况下,可以在灯上持续施加高的点火电压。 此外,二极管钳位技术使Va的包络平滑,从而实现近乎一致的功率因数,低THD和低CF,而无需闭环控制。

    Socket for Electronic Component
    6.
    发明申请
    Socket for Electronic Component 失效
    电子元器件插座

    公开(公告)号:US20080220631A1

    公开(公告)日:2008-09-11

    申请号:US11915349

    申请日:2006-05-25

    IPC分类号: H01R12/00

    摘要: The present invention relates to a socket for electronic component which contains an electronic component. The socket for electronic component comprises a platy base, containers formed to be concaved on a front face of the base and to contain LED packages therein, connectors provided on side faces and connected to other members, supports each of which supports and fixes the LED package contained in the container and electrically connected to the LED package, heat conductors each of which is provided continuously from a bottom face side of the container to a rear face of the base and contacts the LED package contained in the container so as to conduct heat generated by the LED package, and terminals electrically connected to the other members coupled with the connectors and the supports. The heat generated by the LED package is conducted to the rear face of the base through the heat conductors, and effectively radiated to an installation member on which the socket for electronic component is mounted.

    摘要翻译: 本发明涉及一种包含电子部件的电子部件用插座。 用于电子部件的插座包括板状基座,形成为凹陷在基座的前表面上并容纳LED封装的容器,设置在侧面上并连接到其它构件的连接器,每个支撑件支撑并固定LED封装 容纳在容器中并电连接到LED封装的导热体,每个热导体从容器的底面侧连续地设置到基座的后表面,并与容纳在容器中的LED封装体接触,以便产生热量 通过LED封装,以及电连接到与连接器和支撑件耦合的其它构件的端子。 由LED封装产生的热量通过导热体传导到基座的后表面,并有效地辐射到安装有用于电子部件的插座的安装部件上。

    Electronic ballast for a high-pressure discharge lamp
    7.
    发明授权
    Electronic ballast for a high-pressure discharge lamp 有权
    电子镇流器用于高压放电灯

    公开(公告)号:US06914395B2

    公开(公告)日:2005-07-05

    申请号:US10473361

    申请日:2002-11-26

    摘要: An electronic ballast for a high intensity discharge lamp (HID) includes a power converters, a controller, and a lamp power switch. In the power converter, an input DC voltage is converted into a ballast output power for lighting the HID lamp. The controller has a function to control the power converter and change the ballast output power. The lamp power switch detects a lamp output parameter indicated after the HID lamp starts discharge, identifies a lamp power of the HID lamp according to the lamp output parameter, and gives an identification signal indicating the lamp power. In response to this identification signal, the power converter outputs the ballast output power which matches with the lamp power identified.

    摘要翻译: 用于高强度放电灯(HID)的电子镇流器包括电力转换器,控制器和灯电源开关。 在功率转换器中,将输入直流电压转换为镇流器输出功率,以便照亮HID灯。 控制器具有控制功率转换器和改变镇流器输出功率的功能。 灯电源开关检测HID灯开始放电后指示的灯输出参数,根据灯输出参数识别HID灯的灯功率,并给出指示灯功率的识别信号。 响应于该识别信号,功率转换器输出与所识别的灯功率相匹配的镇流器输出功率。

    Power supply device
    8.
    发明授权
    Power supply device 失效
    电源设备

    公开(公告)号:US5995398A

    公开(公告)日:1999-11-30

    申请号:US63013

    申请日:1998-04-21

    摘要: A power supply device for a discharge lamp has a rectifier for rectification of an AC voltage from an AC voltage source into an output DC voltage, a smoothing capacitor connected across the rectifier for providing a smoothed DC voltage, and an inverter which receives the smoothed DC voltage to provides a high frequency output to the lamp. The inverter includes a composite resonant circuit with first and second resonant systems each including an impedance element. The lamp is connected across the impedance element of the first resonant system. A balancing circuit is included to combine the high frequency powers fed respectively through the first and second resonant systems in a direction of canceling the high frequency powers with each other to provide a combined high frequency power. A feedback arrangement is included to superimpose the combined high frequency power upon the output DC voltage of the rectifier so as to feedback the resulting power to an input of the inverter for flowing a charge current for the smoothing capacitor. The first and second resonant systems are arranged to vary an amount of the combined high frequency power provided from the balancing means in response to a varying load condition of the lamp for reducing the canceling effect at the balancing means as the high frequency power supplied to the lamp increases.

    摘要翻译: 用于放电灯的电源装置具有用于将AC电压从AC电压源整流为输出DC电压的整流器,连接在整流器上的平滑电容器,用于提供平滑的DC电压;以及逆变器,其接收平滑的DC 电压为灯提供高频输出。 逆变器包括具有第一和第二谐振系统的复合谐振电路,每个谐振系统均包括阻抗元件。 灯连接在第一谐振系统的阻抗元件两端。 包括平衡电路以将分别通过第一和第二谐振系统馈送的高频功率在消除高频功率的方向相互组合以提供组合的高频功率。 包括反馈装置以将组合的高频功率叠加在整流器的输出直流电压上,以将所得到的功率反馈到用于流过平滑电容器的充电电流的逆变器的输入。 第一和第二谐振系统被布置成响应于灯的变化的负载条件来改变从平衡装置提供的组合的高频功率的量,以减少在平衡装置处的抵消效应,因为提供给 灯增加。

    Socket for electronic component
    9.
    发明授权
    Socket for electronic component 失效
    电子元件插座

    公开(公告)号:US07553162B2

    公开(公告)日:2009-06-30

    申请号:US11915349

    申请日:2006-05-25

    IPC分类号: F21V21/00

    摘要: The present invention relates to a socket for electronic component which contains an electronic component. The socket for electronic component comprises a platy base, containers formed to be concaved on a front face of the base and to contain LED packages therein, connectors provided on side faces and connected to other members, supports each of which supports and fixes the LED package contained in the container and electrically connected to the LED package, heat conductors each of which is provided continuously from a bottom face side of the container to a rear face of the base and contacts the LED package contained in the container so as to conduct heat generated by the LED package, and terminals electrically connected to the other members coupled with the connectors and the supports. The heat generated by the LED package is conducted to the rear face of the base through the heat conductors, and effectively radiated to an installation member on which the socket for electronic component is mounted.

    摘要翻译: 本发明涉及一种包含电子部件的电子部件用插座。 用于电子部件的插座包括板状基座,形成为凹陷在基座的前表面上并容纳LED封装的容器,设置在侧面上并连接到其它构件的连接器,每个支撑件支撑并固定LED封装 容纳在容器中并电连接到LED封装的导热体,每个热导体从容器的底面侧连续地设置到基座的后表面,并与容纳在容器中的LED封装体接触,以便产生热量 通过LED封装,以及电连接到与连接器和支撑件耦合的其它构件的端子。 由LED封装产生的热量通过导热体传导到基座的后表面,并有效地辐射到安装有用于电子部件的插座的安装部件上。

    Charge pump power factor correction circuit for power supply for gas
discharge lamp
    10.
    发明授权
    Charge pump power factor correction circuit for power supply for gas discharge lamp 失效
    气体放电灯电源的充电泵功率因数校正电路

    公开(公告)号:US5959410A

    公开(公告)日:1999-09-28

    申请号:US790652

    申请日:1997-01-29

    CPC分类号: H05B41/28 Y10S315/02

    摘要: An electric power source device includes a power converting circuit and a load circuit (LD) for receiving an output from the power converting circuit. The power converting circuit includes a rectifier element (DB) for rectifying an input from an alternating current source (AC), a smoothing capacitor (Ce) for smoothing an output from the rectifier element (DB) with a direct current, and switching elements (Q1, Q2) for generating high frequency voltage and current in response to receipt of a voltage of the smoothing capacitor (Ce). The power converting circuit makes use of a current source type charge pump (CSCP) for capturing an input current from the alternating current source (AC) by the use of one of high frequency current loops generated in the circuit as a result of switching on and off of the switching elements (Q1, Q2), and a voltage source type charge pump (VSCP) for capturing the input current from the alternating current source (AC) by the use of one of high frequency voltage nodes generated in the circuit as a result of the switching on and off of the switching elements (Q1, Q2).

    摘要翻译: 电源装置包括用于接收来自电力转换电路的输出的电力转换电路和负载电路(LD)。 电力转换电路包括用于对来自交流电源(AC)的输入进行整流的整流元件(DB),用直流电流对整流元件(DB)的输出进行平滑的平滑电容器(Ce)和开关元件 Q1,Q2),用于响应于接收到平滑电容器(Ce)的电压而产生高频电压和电流。 电力转换电路利用电流源型电荷泵(CSCP),通过使用在电路中产生的高频电流回路中的一个作为接通的结果从交流电源(AC)捕获输入电流,以及 关闭开关元件(Q1,Q2)和用于通过使用在电路中产生的高频电压节点之一来从交流电源(AC)捕获输入电流的电压源型电荷泵(VSCP),作为 开关元件(Q1,Q2)的接通和断开的结果。