公开(公告)号：US20150237696A1

公开(公告)日：2015-08-20

申请号：US14595565

申请日：2015-01-13

申请人： Peter W. Shackle

发明人： Peter W. Shackle

IPC分类号： H05B33/08

CPC分类号： H05B33/0821 ,  H05B33/0809 ,  H05B33/0812 ,  H05B33/083 ,  Y02B20/42

摘要： AC LED light engines powered directly from the AC power line contain circuitry of resistors, capacitors, diodes and transistors which enables a single string LEDs connected to series to efficiently produce light with a relatively low level of flicker as perceived by the human eye. The LEDs are driven by a current which is alternately capacitively-limited and resistively-limited. Capacitively-limited pulses of current are interposed between resistively-limited pulses of current so that the resulting output current ripple is at frequencies of 240 Hz or above which the human eye cannot perceive. The combination of resistively-limited current and capacitively-limited current results in a current drain from the power line which is generally sinusoidal and can have a power factor in excess of 0.70.

摘要翻译： 交流电源线直接供电的交流LED发光二极管包含电阻，电容，二极管和晶体管的电路，使串联的单串LED可以有效地产生如人眼所见的较低闪烁水平的光。 LED由交流电容限制和电阻限制的电流驱动。 电流限制的电流脉冲被插入在电流限制的电流脉冲之间，使得所得到的输出电流纹波是240Hz或高于人眼不能察觉的频率。 电阻限制电流和电容限制电流的组合导致电力线的电流消耗，其通常是正弦的，并且可以具有超过0.70的功率因数。

公开(公告)号：US20080150447A1

公开(公告)日：2008-06-26

申请号：US11615950

申请日：2006-12-23

申请人： Peter W. Shackle ,  Zhanqi Du

发明人： Peter W. Shackle ,  Zhanqi Du

IPC分类号： H05B41/24 ,  H05B41/36

CPC分类号： H02M5/458 ,  H05B41/28 ,  H05B41/36

摘要： Methods and apparatus are described that can provide improved power factor correction and total harmonic distortion, efficiency and/or direct feedback of load current variations to a power source inverter. In one example, a power supply, for example, a ballast, can have an input circuit, an output circuit and an inverter circuit coupled between the input circuit and the output circuit. A current feedback circuit is coupled between the output circuit and the inverter circuit and configured to feed current back to the inverter circuit through a transformer stage separate from the inverter as a function of a current level in the output circuit.

摘要翻译： 描述了可以向电源逆变器提供改进的功率因数校正和总谐波失真，效率和/或负载电流变化的直接反馈的方法和装置。 在一个示例中，电源（例如镇流器）可以具有耦合在输入电路和输出电路之间的输入电路，输出电路和反相器电路。 电流反馈电路耦合在输出电路和逆变器电路之间，并且被配置成作为输出电路中的电流电平的函数，通过与逆变器分离的变压器级将电流馈送回到逆变器电路。

公开(公告)号：US07019662B2

公开(公告)日：2006-03-28

申请号：US10629389

申请日：2003-07-29

申请人： Peter W. Shackle

发明人： Peter W. Shackle

IPC分类号： G08B5/22 ,  G09F9/33

CPC分类号： H05B33/0815 ,  H05B33/0851

摘要： An LED light source drive includes an LED current generating circuit and an LED drive controller. The current generating circuit is operable to receive power from a power source and to generate a dc current that can be used to the drive an LED light source. The drive controller is operable to control the dc current to ensure that the light output of the light source remains approximately constant over its operating lifetime. In one embodiment, the drive controller ensures that the effective light output of the light source remains approximately constant by automatically increasing the dc current in predetermined amounts at predetermined times. In an alternative embodiment, the drive controller includes an LED light sensor that is operable to generate a light signal indicative of the effective light output of the light source and the controller uses this light signal to control the dc current output.

摘要翻译： LED光源驱动器包括LED电流发生电路和LED驱动控制器。 电流产生电路可操作以从电源接收功率并产生可用于驱动LED光源的直流电流。 驱动控制器可操作以控制直流电流，以确保光源的光输出在其使用寿命内保持近似恒定。 在一个实施例中，驱动控制器通过在预定时间自动增加预定量的直流电流来确保光源的有效光输出保持近似恒定。 在替代实施例中，驱动控制器包括LED光传感器，其可操作以产生指示光源的有效光输出的光信号，并且控制器使用该光信号来控制直流电流输出。

公开(公告)号：US06791275B2

公开(公告)日：2004-09-14

申请号：US10212605

申请日：2002-08-05

申请人： Peter W. Shackle

发明人： Peter W. Shackle

IPC分类号： H05B4114

CPC分类号： H05B41/36 ,  H05B37/03 ,  H05B41/2855

摘要： A ballast for a low pressure gas discharge lamp, preferably of the heated-filament type, includes an on-off indicator for a lamp. The ballast includes a load circuit with a lamp, and a driver for supplying AC load current to the lamp. Such driver includes circuitry for shutting off the load current in the presence of a lamp fault condition. The ballast also includes a pair of nodes having voltage across them when the lamp operates normally, and having substantially no voltage across them when the lamp is off. An on-off lamp indicator circuit includes a light-emitting device and is coupled to the pair of nodes for causing the light-emitting device to emit light when the driver supplies load current to the lamp and for causing the light-emitting device to cease to emit light when the driver no longer supplies load current to the lamp.

摘要翻译： 用于低压气体放电灯的镇流器，优选为加热丝型，包括用于灯的开 - 关指示器。 镇流器包括具有灯的负载电路和用于向灯提供AC负载电流的驱动器。 这种驱动器包括用于在灯故障状况的情况下关闭负载电流的电路。 当灯正常工作时，镇流器还包括一对具有电压的节点，并且当灯关闭时，它们之间几乎没有电压。 开关灯指示电路包括发光装置，并且耦合到所述一对节点，用于当所述驱动器向所述灯提供负载电流并使所述发光装置停止时使所述发光装置发光 当驱动器不再向灯提供负载电流时发光。

公开(公告)号：US06420838B1

公开(公告)日：2002-07-16

申请号：US09801496

申请日：2001-03-08

申请人： Peter W. Shackle

发明人： Peter W. Shackle

IPC分类号： H05B3702

CPC分类号： H05B41/2851 ,  Y02B20/186

摘要： A ballast for a fluorescent lamp incorporates in an integrated circuit (IC) complex circuit functions, such as driving a switching arrangement that provides AC power to the lamp. Beneficially, such IC's may be widely available and inexpensive. Additional circuitry complements such IC by protecting against one or more of the following three conditions: (1) the lamp starting to significantly rectify current in either direction, (2) the lamp voltage exceeding a predetermined level for a prolonged duration, and (3) the power mains supply voltage falling below a predetermined level.

摘要翻译： 用于荧光灯的镇流器集成在集成电路（IC）复合电路功能中，例如驱动向灯提供AC电力的开关装置。 有利的是，这样的IC可以广泛可用且价格便宜。 附加电路通过防止以下三个条件中的一个或多个来补充这种IC：（1）灯开始显着地对任一方向上的电流进行整流，（2）灯电压超过预定电平持续长时间，以及（3） 电源电源电压低于预定电平。

公开(公告)号：US5925990A

公开(公告)日：1999-07-20

申请号：US995278

申请日：1997-12-19

申请人： Kent E. Crouse ,  Ronald J. Bezdon ,  Michael W. Bandel ,  Patrick J. Keegan ,  Boyko Boykov ,  Peter W. Shackle ,  William L. Keith

发明人： Kent E. Crouse ,  Ronald J. Bezdon ,  Michael W. Bandel ,  Patrick J. Keegan ,  Boyko Boykov ,  Peter W. Shackle ,  William L. Keith

IPC分类号： H05B41/285 ,  H05B41/36 ,  G05F1/00

CPC分类号： H05B41/2855 ,  H05B41/36 ,  Y02B20/186 ,  Y10S315/07

摘要： An electronic ballast includes an AC to DC converter for power factor correction, a bulk capacitor for storing energy from the converter, and a microprocessor controlled, half-bridge inverter including a series resonant, direct coupled output. Input ports of the microprocessor are coupled to several locations within the ballast to monitor the operation of the ballast or the operation of a gas discharge lamp coupled to the ballast. An analog voltage limiter overrides the microprocessor to limit output voltage under fault conditions. A storage capacitor, connected in series with the bulk capacitor, stores energy at low voltage for powering the microprocessor. The microprocessor is programmed to provide lamp protection features, lumen maintenance, and a warm-up period for a lamp. The microprocessor is also programmed to meet the operating requirements of world markets and of different lamp types.

摘要翻译： 电子镇流器包括用于功率因数校正的AC-DC转换器，用于存储来自转换器的能量的大容量电容器以及包括串联谐振直接耦合输出的微处理器控制的半桥逆变器。 微处理器的输入端口耦合到镇流器内的多个位置，以监测镇流器的操作或耦合到镇流器的气体放电灯的操作。 模拟电压限制器覆盖微处理器以在故障条件下限制输出电压。 与大容量电容器串联连接的存储电容器以低电压存储能量以为微处理器供电。 微处理器被编程为提供灯保护功能，流明维持和灯的预热时间。 微处理器也被编程为满足世界市场和不同灯类型的操作要求。

公开(公告)号：US5416388A

公开(公告)日：1995-05-16

申请号：US164183

申请日：1993-12-09

申请人： Peter W. Shackle

发明人： Peter W. Shackle

IPC分类号： H05B41/24 ,  H05B41/28 ,  H05B37/02

CPC分类号： H05B41/28 ,  H02M2001/4275 ,  Y02B70/126 ,  Y10S315/05

摘要： A power factor corrected electronic ballast circuit uses two transformer components. An inductively coupled charge pump technique is used for power factor correction while the gates of the transistor switches are driven directly from a resonant inductor.

摘要翻译： 功率因数校正电子镇流器电路使用两个变压器组件。 电感耦合电荷泵技术用于功率因数校正，而晶体管开关的栅极直接从谐振电感器驱动。

公开(公告)号：US4309715A

公开(公告)日：1982-01-05

申请号：US107776

申请日：1979-12-28

申请人： William F. MacPherson ,  Robert S. Scott ,  Peter W. Shackle

发明人： William F. MacPherson ,  Robert S. Scott ,  Peter W. Shackle

IPC分类号： H01L27/06 ,  H01L27/08 ,  H01L29/739 ,  H03K17/567 ,  H01L29/00

CPC分类号： H01L27/0814 ,  H01L27/0641 ,  H01L29/7392 ,  H03K17/567

摘要： A high voltage solid-state switch uses a dielectrically isolated lightly doped p- type semiconductor body with a heavily doped p+ type anode region, a heavily doped n+ type gate region, a moderately doped p type shield region, and a heavily doped n+ type cathode region. The shield region surrounds the cathode region. Separate electrodes contact the anode, gate, shield, and cathode regions. The gate and cathode regions also act as the collector-emitter output circuitry of an n-p-n transistor with the shield region acting as the base. With the shield (base) region forward-biased with respect to the cathode or gate regions, the n-p-n transistor is biased on and the collector and emitter are rapidly pulled close to each other in potential. With proper operating potentials applied to the anode and cathode regions, the switch rapidly assumes an "ON" state when the potential of the shield (base) region is set to a level which biases the n-p-n transistor ON. The integral n-p-n transistor serves to rapidly turn the switch to the ON state and only marginally increases the amount of silicon area needed to implement the switch.

摘要翻译： 高电压固态开关使用具有重掺杂p +型阳极区，重掺杂n +型栅极区，中等掺杂p型屏蔽区和重掺杂n +型阴极的介电隔离的轻掺杂p型半导体本体 地区。 屏蔽区域围绕阴极区域。 单独的电极接触阳极，栅极，屏蔽和阴极区域。 栅极和阴极区域也用作n-p-n晶体管的集电极 - 发射极输出电路，屏蔽区域用作基极。 在屏蔽（基极）区域相对于阴极或栅极区域正向偏置的情况下，n-p-n晶体管被偏压，并且集电极和发射极在电势中彼此靠近地被拉近。 当施加到阳极和阴极区域的适当的工作电位时，当屏蔽（基极）区域的电位被设置为使n-p-n晶体管导通偏置的电平时，开关快速地呈现“导通”状态。 积分n-p-n晶体管用于快速地将开关转到导通状态，并且仅稍微增加实现开关所需的硅面积的量。

公开(公告)号：US4250409A

公开(公告)日：1981-02-10

申请号：US107778

申请日：1979-12-28

申请人： James A. Davis ,  William F. MacPherson ,  Peter W. Shackle

发明人： James A. Davis ,  William F. MacPherson ,  Peter W. Shackle

IPC分类号： H01L29/74 ,  H01L27/08 ,  H03K17/567 ,  H03K17/60 ,  H03K17/62 ,  H03K17/72 ,  H03K17/51 ,  H03K17/74

CPC分类号： H03K17/567 ,  H01L27/0817

摘要： To switch a first gated diode switch (GDS) to the "OFF" state requires a voltage applied to the gate which is more positive than that of the anode or cathode and the sourcing of current into the gate which is of the same order of magnitude as flows between the anode and cathode. Control circuitry, which uses a second GDS coupled by the cathode to the gate of the first GDS, is used to control the state of the first GDS. The state of the second GDS is controlled by a branch circuit having a relatively modest current handling capability. An n-p-n junction transistor has the emitter and collector coupled to the cathode and gate, respectively, of the first GDS, and has the base coupled through a p-n-p transistor to the input terminal of the control circuitry. The n-p-n transistor facilitates a quick turn-on of the first GDS by rapidly bringing the potentials of the gate and cathode of the first GDS to levels which are close together.

摘要翻译： 要将第一门控二极管开关（GDS）切换到“OFF”状态，需要施加到栅极的电压，该电压比阳极或阴极的电压更正，并且电流进入栅极的电流是相同的数量级 作为阳极和阴极之间的流动。 使用由阴极耦合到第一GDS的栅极的第二GDS的控制电路用于控制第一GDS的状态。 第二GDS的状态由具有相对适度的当前处理能力的分支电路控制。 n-p-n结晶体管的发射极和集电极分别耦合到第一GDS的阴极和栅极，并且其基极通过p-n-p晶体管耦合到控制电路的输入端。 n-p-n晶体管通过将第一GDS的栅极和阴极的电位快速地接近一起的水平来促进第一GDS的快速接通。

公开(公告)号：US06437520B1

公开(公告)日：2002-08-20

申请号：US09613919

申请日：2000-07-11

申请人： Gueorgui L. Grouev ,  Peter W. Shackle

发明人： Gueorgui L. Grouev ,  Peter W. Shackle

IPC分类号： H05B4136

CPC分类号： H05B41/295

摘要： Gas discharge lamps having filaments at each end thereof are operated in groups according to the power applied to separate line inputs to the ballast. The filaments of the lamps in a first group are powered by a first inverter that provides lamp current to a second group. The filaments of the lamps in the second group are powered by a second inverter that provides lamp current to the first group of lamps. Thus, even if an inverter is turned off, the lamps powered by that inverter are in a pre-heated state for instant starting. Power is coupled to the filaments by a network that is relatively insensitive to changes in frequency.

摘要翻译： 在其每端具有长丝的气体放电灯根据施加到分离到镇流器的线路输入的功率分组操作。 第一组灯的灯丝由向第二组提供灯电流的第一反相器供电。 第二组中的灯的灯丝由向第一组灯提供灯电流的第二逆变器供电。 因此，即使逆变器关闭，由该逆变器供电的灯处于预热状态，以便立即启动。 功率通过对频率变化相对不敏感的网络耦合到灯丝。