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1. 发明授权

US5883472A Circuit for operating a discharge lamp 失效
标题翻译：用于操作放电灯的电路
公开(公告)号：US5883472A
公开(公告)日：1999-03-16
申请号：US894053
申请日：1997-08-12
申请人： Franz Raiser
发明人： Franz Raiser
IPC分类号： H05B41/24 , H05B41/285 , H05B41/29
CPC分类号： H05B41/285 , Y02B20/183
摘要： The invention concerns a circuit for operating a discharge lamp with a habridge generator (T1, T2) wherein a turn-off transistor (T3) can stop the half-bridge generator The energy source for the base current of the turn-off transistor (T3) is formed by starter capacitor (C3) which starts the half-bridge generator (T1, T2), In addition, the collector-emitter section of the turn-off transistor (T3) is directly between the base of the lower transistor (T2) of the half-bridge generator and earth.
摘要翻译： PCT No.PCT / DE96 / 00198 Sec。 371日期：1997年8月12日 102（e）日期1997年8月12日PCT PCT 1996年2月8日PCT公布。公开号WO96 / 25833 日期：1996年8月27日本发明涉及一种用于操作具有半桥发生器（T1，T2）的放电灯的电路，其中关断晶体管（T3）可以停止半桥发生器。基极电流的能量源关断晶体管（T3）由启动半桥发生器（T1，T2）的起动电容器（C3）形成，此外，截止晶体管（T3）的集电极 - 发射极部分直接位于半桥发生器和地的下部晶体管（T2）的基极。

2. 发明授权

US5386181A Swept frequency switching excitation supply for gas discharge tubes 失效
标题翻译：用于气体放电管的扫频变频激励电源
公开(公告)号：US5386181A
公开(公告)日：1995-01-31
申请号：US825629
申请日：1992-01-24
申请人： Edward D. Orenstein
发明人： Edward D. Orenstein
IPC分类号： H05B41/285 , H05B41/29 , H05B41/36 , H05B41/44
CPC分类号： H05B41/2858
摘要： The present invention describes a method and apparatus for a swept frequency switching gas discharge tube supply which produces a "crawling effect" in gas discharge tubes containing neon, argon or mercury gases or other gases and which has a means for eliminating the "bubble effect". To produce the "crawling effect", the driving frequency of the switching supply is swept from a higher frequency to a lower frequency thereby causing the excitation point to move from the electrodes on both ends of the dual electrode gas discharge tube to the center of the gas discharge tube. By varying the base switching frequency of the supply, the bubble effect which plagues some displays can be eliminated.
摘要翻译：本发明描述了一种用于在包含氖气，氩气或汞气体或其他气体的气体放电管中产生“爬行效应”的扫频变频气体放电管供应器的方法和装置，并且具有消除“气泡效应” 。为了产生“爬行效应”，开关电源的驱动频率从较高频率向较低频率扫描，从而使激发点从双电极气体放电管的两端的电极移动到气体放电管。通过改变电源的基极开关频率，可以消除困扰一些显示器的气泡效应。

3. 发明授权

US5374874A Electronic ballast with crest factor control 失效
标题翻译：电子镇流器具有波峰因数控制
公开(公告)号：US5374874A
公开(公告)日：1994-12-20
申请号：US408270
申请日：1989-09-18
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H02M1/00 , H02M1/42 , H02M7/5383 , H05B41/28 , H05B41/282 , H05B41/40 , H05B41/29
CPC分类号： H02M1/425 , H02M7/53832 , H05B41/28 , H05B41/282 , H05B41/40 , Y02B20/185 , Y02B70/126 , Y10S315/07
摘要： A self-oscillating half-bridge inverter is powered from a power-line-operated rectifier means providing a DC supply voltage having a relatively high crest-factor. The inverter is loaded by way of a series-tuned high-Q LC circuit connected across this DC voltage. A pair of fluorescent lamps is series-connected across the tank-capacitor of the LC circuit. Also connected across the DC voltage is an arrangement of three energy-storing capacitors charged in series and discharged in parallel. The crest-factor of the current flowing through the fluorescent lamps is substantially lower than the crest-factor of the DC supply voltage.
摘要翻译：自振荡半桥逆变器由提供具有相对较高波峰因数的直流电源电压的电力线操作的整流装置供电。逆变器通过连接在该直流电压上的串联调谐的高Q LC电路加载。一对荧光灯串联连接在LC电路的电容器之间。还连接在直流电压上的是串联充电并并联放电的三个储能电容器的布置。流过荧光灯的电流的峰值因数远低于直流电源电压的波峰因数。

4. 发明授权

US5262701A Circuit arrangement for operating a high pressure sodium lamp 失效
标题翻译：用于操作高压钠灯的电路布置
公开(公告)号：US5262701A
公开(公告)日：1993-11-16
申请号：US834026
申请日：1992-02-11
申请人： Gunther Derra , Hans-Gunther Ganser , Hans-Peter Stormberg
发明人： Gunther Derra , Hans-Gunther Ganser , Hans-Peter Stormberg
IPC分类号： H05B41/36 , H05B41/392 , H05B41/29 , H05B41/39
CPC分类号： H05B41/3928 , Y02B20/202
摘要： The invention relates to a dimming circuit arrangement for operating a high-pressure sodium lamp L with controllable color temperature. The lamp is supplied with current pulses having a controllable duty cycle D. A change in the color temperature can be achieved through a change .DELTA.D in the duty cycle D and a simultaneous change .DELTA.P in the power supplied to the lamp, while the relation .DELTA.D/.DELTA.P>0 is satisfied.

5. 发明授权

US4800323A Single-ended self-oscillating dc-dc converter for intermittently energized load having V.sub.BE responsive current limit circuit 失效
标题翻译：具有VBE响应电流限制电路的单端自振DC-DC转换器，用于间歇通电负载
公开(公告)号：US4800323A
公开(公告)日：1989-01-24
申请号：US74697
申请日：1987-07-17
申请人： Scott T. Sikora
发明人： Scott T. Sikora
IPC分类号： H02M3/335 , H05B41/29 , H05B41/34
CPC分类号： H02M3/335 , Y10S315/07
摘要： The converter delivers current to an intermittently energized load and includes a coupled inductor having a primary winding, a secondary winding and a feedback winding. A switching transistor is coupled in series with the primary winding of the inductor and switches between conductive and non-conductive states to control the flow of current through the primary winding. A positive drive circuit provides positive bias voltage to the switching transistor. A current limiting circuit senses the voltage across the base-emitter junction of the switching transistor to measure the primary winding current, removes the positive bias voltage when the primary winding current reaches a predetermined value, and thereby switches the transistor out of the conductive state into the non-conductive state. A semiconductor switch includes a control lead coupled to a voltage divider which applies a scaled voltage to the control lead causing the semiconductor switch to conduct when the switching transistor base-emitter voltage reaches a predetermined current limit voltage representative of a preselected switching transistor collector current limit. The semiconductor switch then shunts the positive bias voltage away from the switching transistor base and switches that transistor into the non-conductive state.
摘要翻译：该转换器将电流传递到间歇通电的负载，并且包括具有初级绕组，次级绕组和反馈绕组的耦合电感器。开关晶体管与电感器的初级绕组串联耦合，并在导通状态和非导通状态之间切换，以控制通过初级绕组的电流流动。正驱动电路为开关晶体管提供正偏置电压。限流电路检测开关晶体管的基极 - 发射极结两端的电压，以测量初级绕组电流，当初级绕组电流达到预定值时，去除正偏置电压，从而将晶体管切换到导通状态非导电状态。半导体开关包括耦合到分压器的控制引线，该分压器对控制引线施加定标电压，使得当开关晶体管基极 - 发射极电压达到预定的限流电压时，半导体开关导通，该电流限制电压代表预选的开关晶体管集电极限流。然后半导体开关将正偏置电压分流离开开关晶体管基极，并将该晶体管切换到非导通状态。

6. 发明授权

US4704561A Push-pull generator 失效
标题翻译：推挽式发电机
公开(公告)号：US4704561A
公开(公告)日：1987-11-03
申请号：US825794
申请日：1986-02-03
申请人： Joachim Dietl
发明人： Joachim Dietl
IPC分类号： H03K17/042 , H03K17/06 , H03K17/12 , H05B41/282 , H05B41/29 , H02M7/537
CPC分类号： H03K17/06 , H03K17/04213 , H03K17/12 , H05B41/2828 , Y10S315/05 , Y10S315/07
摘要： A push-pull generator with a driver stage and a push-pull output stage. A parallel connection of a resistor (R3, R4) with a control transistor (T3, T4) is provided in the base line of each output stage transistor. In the push-pull output stage, resistors (R1, R2) are provided at which a voltage drop is caused by the output stage current. Depending on the magnitude of the voltage drop the control transistors (T3, T4) located parallel to the resistors in the base lines are either activated or blocked.
摘要翻译：具有驱动级和推挽输出级的推挽式发生器。电阻器（R3，R4）与控制晶体管（T3，T4）的并联连接设置在每个输出级晶体管的基极上。在推挽输出级中，提供电阻（R1，R2），由输出级电流引起电压降。根据电压降的大小，与基线中的电阻器平行的控制晶体管（T3，T4）被激活或阻断。

7. 发明授权

US4649321A Gate capacitance latch for DC to AC converters 失效
标题翻译：用于直流到交流转换器的栅极电容锁存器
公开(公告)号：US4649321A
公开(公告)日：1987-03-10
申请号：US791823
申请日：1985-10-28
申请人： Angelo Ferraro
发明人： Angelo Ferraro
IPC分类号： H05B41/288 , H05B41/29 , H02M7/5387
CPC分类号： H05B41/2887 , Y02B20/202 , Y10S315/07
摘要： By driving the gate of a voltage-controlled semiconductor switch, positioned as the upper device in each leg of a DC to AC converter, from an extremely high impedance, the need for floating gate drive power sources is eliminated. The invention takes advantage of the inherent gate capacitance of the switch as an energy storage device.
摘要翻译：通过以非常高的阻抗驱动位于DC-AC转换器的每个支路中的上位装置的压控半导体开关的栅极，消除了对浮栅驱动电源的需要。本发明利用了开关的固有栅极电容作为能量存储装置。

8. 发明授权

US4463286A Lightweight electronic ballast for fluorescent lamps 失效
标题翻译：轻便电子镇流器用于荧光灯
公开(公告)号：US4463286A
公开(公告)日：1984-07-31
申请号：US294953
申请日：1981-08-21
申请人： James W. H. Justice
发明人： James W. H. Justice
IPC分类号： H05B41/295 , H05B41/29
CPC分类号： H05B41/295 , Y02B20/19 , Y10S315/04 , Y10S315/07
摘要： A lightweight, transistorized, inverter circuit is particularly adapted for starting and operating a screw-in compact fluorescent lamp intended for incandescent lamp replacement. Household-type AC is converted to DC with one terminal connected to the center tap of a transformer primary through a choke which constitutes a high impedance at the operating frequency. A tuned circuit capacitor is connected across the transformer primary and a current-limiting capacitor and the lamp to be operated are connected in series across the transformer primary. A pair of transistors are connected in push-pull arrangement between the end portions of the transformer primary and the other terminal of the DC source, with the base electrodes of the transistors connected to the transformer secondary winding so that the push-pull connected transistors oscillate at the tuned circuit resonant frequency which is determined by the inductance of the transformer primary winding and the total capacitance of the connected capacitor means. A potential is applied to the midpoint of the transformer secondary upon energization of the apparatus in order to initiate transistor conduction. The system operates with a high efficacy for the production of light.
摘要翻译：轻便的，晶体管化的逆变器电路特别适用于启动和操作用于白炽灯更换的螺丝式紧凑型荧光灯。家用型交流电转换为直流，其一端通过在工作频率构成高阻抗的扼流圈连接到变压器初级的中心抽头。调制电路电容器连接在变压器初级和限流电容器两端，待操作的灯串连接在变压器初级端子上。一对晶体管以推挽方式连接在变压器初级端的另一端和DC源的另一端之间，晶体管的基极连接到变压器次级绕组，使得推挽连接的晶体管振荡在调谐电路谐振频率下，由变压器初级绕组的电感和连接的电容器装置的总电容确定。为了启动晶体管导通，在设备通电时将电位施加到变压器次级的中点。该系统具有高效率的光源生产。

9. 发明授权

US4382212A One lamp out detect shutdown technique for high frequency, solid state fluorescent lamp ballasts 失效
标题翻译：一个灯灭检测高频，固态荧光灯镇流器的关机技术
公开(公告)号：US4382212A
公开(公告)日：1983-05-03
申请号：US232608
申请日：1981-02-09
申请人： David L. Bay
发明人： David L. Bay
IPC分类号： H02M7/5383 , H05B41/285 , H05B41/29
CPC分类号： H05B41/2855 , H02M7/53832 , Y10S315/07
摘要： An improved output configuration for a multiple-lamp electronic ballast system. The output includes a differential transformer having a primary adapted to be coupled in a first loop including a first filament filament drive winding and feedback winding and a secondary adapted to be coupled in a second loop that includes a second filament, filament drive winding and feedback winding.The improvement allows the entire ballast to be shut down when a lamp has been removed thereby avoiding aberrant oscillator operation under abnormal, yet predictable, lamp load conditions.
摘要翻译：多灯电子镇流器系统的改进的输出配置。该输出包括一个差分变压器，其具有适于耦合在包括第一灯丝丝驱动绕组和反馈绕组的第一回路中的初级，以及适于被耦合在包括第二灯丝的第二回路中的次级，其包括灯丝驱动绕组和反馈绕组。当灯被去除时，改进允许整个镇流器关闭，从而避免在异常但可预测的灯负载条件下的异常振荡器操作。

10. 发明授权

US4378514A Starting and operating circuit for gaseous discharge lamps 失效
标题翻译：气体放电灯的启动和运行电路
公开(公告)号：US4378514A
公开(公告)日：1983-03-29
申请号：US201014
申请日：1980-10-27
申请人： Byron R. Collins
发明人： Byron R. Collins
IPC分类号： H05B41/18 , H05B41/04 , H05B41/14 , H05B41/231 , H05B41/29
CPC分类号： H05B41/042 , Y10S315/07
摘要： Starting and operating circuit for gaseous discharge lamps has device for quickly re-starting extinguished lamps while still hot. Circuit comprises a source of alternating current, an inductive regulator ballast having its input connected to the alternating current source, and a gaseous discharge lamp connected to the output of the ballast, a sine wave oscillator circuit having its input connected to the current supply and having its output connected to a transformer connected in series between the ballast and the lamp for stepping up and applying voltage to a lamp, and a positive temperature coefficient resistor (PTCR) connected between the alternating current source and the oscillator circuit for reducing power to the oscillator circuit when the lamp is inoperative or absent.
摘要翻译：用于气体放电灯的启动和操作电路具有在仍然很热的情况下快速重新启动熄灭灯的装置。电路包括交流电源，其输入端连接到交流电源的感应调节器镇流器和连接到镇流器的输出的气体放电灯，正弦波振荡器电路的输入端连接到电流源并具有其输出连接到串联在镇流器和灯之间的变压器，用于升压和向灯施加电压，以及连接在交流电源和振荡器电路之间的正温度系数电阻器（PTCR），用于降低振荡器的功率当灯不工作或不存在时的电路。

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