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1. 发明申请

US20050040771A1 High intensity discharge lamp with current sense resistor 有权
标题翻译：高强度放电灯，带电流检测电阻
公开(公告)号：US20050040771A1
公开(公告)日：2005-02-24
申请号：US10985557
申请日：2004-11-10
申请人： Andrew Johnsen , Bernhard Ertl , Guy Bouchard , Vipin Madhani
发明人： Andrew Johnsen , Bernhard Ertl , Guy Bouchard , Vipin Madhani
IPC分类号： H05B39/00 , H05B41/02 , H05B41/282 , H05B41/288 , H05B37/02 , H05B41/36
CPC分类号： H05B41/2886 , H05B41/282 , Y02B20/202
摘要： A circuit for operating a high intensity discharge (HID) lamp includes an H-bridge connected between a common terminal and a power line, and a control circuit connected to the H-bridge. The control circuit includes a transformer having a primary winding connected between the common terminal and a power terminal and a secondary winding connected between the common terminal and the power line, and a current sense resistor connected in series between the secondary winding and the common terminal. The HID lamp is connected to the common terminal and to the second winding so as sense a current across the current sense resistor.
摘要翻译：用于操作高强度放电（HID）灯的电路包括连接在公共端子和电源线之间的H桥以及连接到H桥的控制电路。该控制电路包括：一个变压器，其具有连接在公共端子和电源端子之间的初级绕组和连接在公共端子和电力线路之间的次级绕组;以及电流检测电阻器，串联连接在次级绕组和公共端子之间。 HID灯连接到公共端子和第二绕组，以便感测电流检测电阻器上的电流。

2. 发明申请

US20060097661A1 High intensity discharge lamp ballast with anti-theft operating mode 有权
标题翻译：高强度放电灯镇流器具有防盗操作模式
公开(公告)号：US20060097661A1
公开(公告)日：2006-05-11
申请号：US11248730
申请日：2005-10-12
申请人： Andrew Johnsen , Vipin Madhani , Guy Bouchard
发明人： Andrew Johnsen , Vipin Madhani , Guy Bouchard
IPC分类号： H05B41/36
CPC分类号： H05B41/2925 , B60Q1/0005 , B60Q1/04 , Y02B20/208
摘要： A high intensity discharge (HID) assembly comprises ballast circuits which includes a micro-controller, and an HID headlamp. In order to deter theft of the HID assembly from a vehicle, the micro-controller communicates with a vehicle computer, checks the VIN of the vehicle, and if the micro-controller does not recognize the VIN, causes the HID headlamp to operate in a flickering power output mode. The ballast circuits include a power control circuit, a lamp current regulator, a 400v regulator, a current sense circuit, a turn-on synchronization circuit, a shut down circuit, and a pulse width modulator.
摘要翻译：高强度放电（HID）组件包括镇流器电路，其包括微控制器和HID前照灯。为了防止HID组件从车辆被盗窃，微控制器与车辆计算机进行通信，检查车辆的VIN，并且如果微控制器不识别VIN，则使HID前照灯在闪烁电源输出模式。镇流器电路包括功率控制电路，灯电流调节器，400v调节器，电流检测电路，导通同步电路，关断电路和脉冲宽度调制器。

3. 发明申请

US20060097663A1 High intensity discharge lamp with boost circuit 有权
公开(公告)号：US20060097663A1
公开(公告)日：2006-05-11
申请号：US10985555
申请日：2004-11-10
申请人： Andrew Johnsen , Bernhard Ertl , Guy Bouchard , Arnulf Rupp
发明人： Andrew Johnsen , Bernhard Ertl , Guy Bouchard , Arnulf Rupp
IPC分类号： H05B41/36
CPC分类号： H05B41/2885 , H05B41/2886 , Y02B20/202
摘要： A circuit for operating a high intensity discharge (HID) lamp includes an H-bridge connected between a common terminal and a power line, and a control circuit connected to the H-bridge. A boost circuit is connected in parallel with the H-bridge between the power line and the common terminal, where the boost circuit includes a resistor, a Zener diode and a capacitor connected in series.

4. 发明申请

US20050057179A1 Driver circuit for LED vehicle lamp 有权
标题翻译： LED汽车灯驱动电路
公开(公告)号：US20050057179A1
公开(公告)日：2005-03-17
申请号：US10926674
申请日：2004-08-26
申请人： Vipin Madhani , Andrew Johnsen
发明人： Vipin Madhani , Andrew Johnsen
IPC分类号： B60Q1/30 , B60Q1/44 , H01L20060101 , H05B37/00 , H05B37/02
CPC分类号： B60Q1/30 , B60Q1/44 , H05B33/083 , H05B33/089 , Y02B20/343 , Y02B20/345
摘要： A first vehicle lamp driver circuit for a light emitting diode (LED) array, the LED array having a first string of four LEDs in series and a second string of four LEDs in series. A first LED driver drives the first LED string and a second LED driver drives the second LED string. In a STOP mode of operation, the current to both LED strings is controlled by the LED driver in series with the LED string. In a TAIL mode of operation, the current is provided to only one LED string via a series connected diode and resistor. When there is reduced input voltage, operation of the LED strings is provided by switching circuits that short-out one LED in each LED string. A second vehicle lamp driver circuit comprises a first LED string and a second LED string in series with a control switch having a feedback circuit for maintaining constant current regulation to control the sum of the current in each LED string and reduce switching noise.
摘要翻译：用于发光二极管（LED）阵列的第一车灯驱动器电路，所述LED阵列具有串联的四个LED的第一串和串联的四个LED的第二串。第一LED驱动器驱动第一LED串，第二LED驱动器驱动第二LED串。在STOP操作模式下，两个LED串的电流由与LED串串联的LED驱动器控制。在TAIL操作模式下，电流仅通过串联连接的二极管和电阻器提供给一个LED串。当输入电压降低时，通过在每个LED串中短路一个LED的开关电路来提供LED串的操作。第二车灯驱动器电路包括与控制开关串联的第一LED串和第二LED串，该控制开关具有用于保持恒定电流调节以控制每个LED串中的电流之和并降低开关噪声的反馈电路。

5. 发明申请

US20080061706A1 Ballast with Zero Voltage Switching Converter 有权
标题翻译：镇流器与零电压开关转换器
公开(公告)号：US20080061706A1
公开(公告)日：2008-03-13
申请号：US11660789
申请日：2005-10-21
申请人： Andrew Johnsen , Bernhard Ertl , Gerwin Thiel , John Cross
发明人： Andrew Johnsen , Bernhard Ertl , Gerwin Thiel , John Cross
IPC分类号： H05B37/02
CPC分类号： H05B41/2926 , H05B41/2886 , Y02B20/202
摘要： A ballast (10) for powering at least one gas discharge lamp (20) comprises a switching converter (100) and an inverter (900). Switching converter (100) includes a transistor (130) and a control circuit (200) that provides substantially zero voltage switching of the transistor (130) at a very high frequency. Preferably, control circuit (200) includes a drive circuit (300), a turn-on synchronization circuit (400), a current mirror circuit (500), a rail voltage regulator circuit (600), and a lamp current regulator circuit (700). Drive circuit (300) is preferably realized by a circuit arrangement that includes a standard pulse-width modulation integrated circuit (310).
摘要翻译：用于为至少一个气体放电灯（20）供电的镇流器（10）包括开关转换器（100）和逆变器（900）。开关转换器（100）包括以非常高的频率提供晶体管（130）的基本上零电压开关的晶体管（130）和控制电路（200）。优选地，控制电路（200）包括驱动电路（300），导通同步电路（400），电流镜电路（500），轨电压调节器电路（600）和灯电流调节器电路）。驱动电路（300）优选地通过包括标准脉宽调制集成电路（310）的电路装置来实现。

6. 发明授权

US09295129B1 Turn on optimization 有权
标题翻译：开启优化
公开(公告)号：US09295129B1
公开(公告)日：2016-03-22
申请号：US14677884
申请日：2015-04-02
申请人： Peng Xiao , Keng Chen , Andrew Johnsen
发明人： Peng Xiao , Keng Chen , Andrew Johnsen
IPC分类号： H05B33/08
CPC分类号： H05B33/089 , H05B33/0809 , H05B33/0848
摘要： Systems, methods, and computer program products for turn on optimization of a driver for one or more light sources are disclosed. A duty cycle value is selected from a table. The selected duty cycle corresponds to the target output current of the driver and has a corresponding voltage. The selected duty cycle is applied to the driver. An output voltage at the light source is measured, and compared to the corresponding voltage of the selected duty cycle to produce a voltage comparison result. Based on the comparison result, the selection of the duty cycle is adjusted. Additionally, an output current of the light source is measured and compared to the target output current, to produce a current comparison result. An adjustment coefficient is applied to a feedback circuit of the driver based thereon, wherein the feedback circuit adjusts a switching frequency of the driver based on the selected duty cycle.
摘要翻译：公开了用于对一个或多个光源的驱动器进行优化的系统，方法和计算机程序产品。从表中选择占空比值。所选占空比对应于驱动器的目标输出电流，并具有相应的电压。所选择的占空比应用于驱动器。测量光源处的输出电压，并与所选占空比的相应电压进行比较，以产生电压比较结果。根据比较结果，调整占空比的选择。此外，测量光源的输出电流并将其与目标输出电流进行比较，以产生电流比较结果。基于此，调整系数被施加到驾驶员的反馈电路，其中反馈电路基于所选择的占空比来调整驾驶员的切换频率。

7. 发明授权

US08378585B2 High frequency integrated HID lamp with run-up current 有权
标题翻译：高频集成HID灯带起动电流
公开(公告)号：US08378585B2
公开(公告)日：2013-02-19
申请号：US12690320
申请日：2010-01-20
申请人： Andrew Johnsen , Estrella Kim
发明人： Andrew Johnsen , Estrella Kim
IPC分类号： H05B37/02
CPC分类号： H05B41/2881 , H05B41/382
摘要： A high frequency ballast for a metal halide lamp comprises a controller, a switch, and an oscillator. The ballast is rated at a higher power than the steady state operating power of the lamp. The controller ignites the lamp at a frequency which is less than the steady state operating frequency of the lamp and ignites the lamp at a current which is greater than the steady state operating current of the lamp.
摘要翻译：用于金属卤化物灯的高频镇流器包括控制器，开关和振荡器。镇流器的额定功率高于灯的稳态工作功率。控制器以小于灯的稳态工作频率的频率点亮灯，并以大于灯的稳态工作电流的电流点亮灯。

8. 发明授权

US07863827B2 Ceramic metal halide lamp bi-modal power regulation control 失效
标题翻译：陶瓷金属卤化物灯双模功率调节控制
公开(公告)号：US07863827B2
公开(公告)日：2011-01-04
申请号：US12165295
申请日：2008-06-30
申请人： Andrew Johnsen , Phillip Whitt
发明人： Andrew Johnsen , Phillip Whitt
IPC分类号： H05B37/02
CPC分类号： H05B41/2883
摘要： A high frequency ballast for a metal halide lamp comprises a controller, a switch, and an oscillator. The controller selectively enables and disables the oscillator via the switch to ignite the lamp. The switch selectively alters an inductance of the inductor to switch between a first frequency of the oscillator and a second frequency of the oscillator different than the first. The controller monitors a current of a power supply loop of the oscillator and a voltage of the oscillator and determines a duty cycle as a function of the monitored voltage and current. The duty cycle is indicative of the percentage of time that the oscillator is to operate at the first frequency versus the second frequency.
摘要翻译：用于金属卤化物灯的高频镇流器包括控制器，开关和振荡器。控制器通过开关选择性地启用和禁用振荡器以点燃灯。开关选择性地改变电感器的电感以在振荡器的第一频率和不同于第一频率的振荡器的第二频率之间切换。控制器监视振荡器的电源回路的电流和振荡器的电压，并确定作为监视的电压和电流的函数的占空比。占空比表示振荡器在第一频率与第二频率下操作的时间百分比。

9. 发明申请

US20200008277A1 SWITCHABLE STABILIZATION LOAD AT LOW DIMMING LEVELS 审中-公开
公开(公告)号：US20200008277A1
公开(公告)日：2020-01-02
申请号：US16456338
申请日：2019-06-28
申请人： Markus Zeigler , Andrew Johnsen , Satish Chandupatla , Yaping-Abner Liu
发明人： Markus Zeigler , Andrew Johnsen , Satish Chandupatla , Yaping-Abner Liu
IPC分类号： H05B33/08 , H02M7/06 , H02M3/335 , H02M1/42
摘要： A PFC flyback converter topology is disclosed. The topology can be implemented in a single-stage and is particularly useful in driving dimmable solid state light sources in lighting applications, though other applications susceptible to instability at very low loading conditions may also benefit. Stable operation is achieved over a broader range of loading using the converter topology as provided herein. In a dimmable lighting application, stable operation (e.g., flicker-free lighting) is achieved at very low dimming levels (e.g., where the load is less than 10% full load). In some topologies, a serial arrangement including a stabilization network and a switch is connected across the solid state light sources or other load. A microcontroller unit controls the duty cycle of the switch to selectively steer excess current from the solid state light sources to the stabilization circuit, at very low dimming conditions.

10. 发明授权

US08076865B2 Ignition for ceramic metal halide high frequency ballasts 失效
标题翻译：陶瓷金属卤化物高频镇流器点火
公开(公告)号：US08076865B2
公开(公告)日：2011-12-13
申请号：US12191929
申请日：2008-08-14
申请人： Andrew Johnsen , James N. Lester
发明人： Andrew Johnsen , James N. Lester
IPC分类号： H05B37/02 , H05B39/02 , H05B39/04 , H05B41/36 , H05F1/00
CPC分类号： H05B41/2885 , H05B41/2988 , H05B41/382 , Y02B20/204
摘要： A high frequency ballast for a metal halide lamp comprises a controller, a switch, and an oscillator. The controller selectively enables and disables the oscillator via the switch to ignite the lamp. The switch is in a power supply loop of the oscillator and selectively open circuits and close circuits the power supply loop. When the switch close circuits the power supply loop, the oscillator oscillates and provides power to the lamp. When the switch open circuits the power supply loop, the oscillator does not oscillate and does not provide power to the lamp.
摘要翻译：用于金属卤化物灯的高频镇流器包括控制器，开关和振荡器。控制器通过开关选择性地启用和禁用振荡器以点燃灯。开关处于振荡器的电源回路中，并选择性地打开电路并闭合电源回路。当开关闭合电源回路时，振荡器振荡并向灯提供电源。当开关断开电源回路时，振荡器不振荡，不向灯提供电源。

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