公开(公告)号：US08508154B2

公开(公告)日：2013-08-13

申请号：US13092665

申请日：2011-04-22

Applicant: Ching-Ho Chou ,  Chia-Jung Nian

Inventor： Ching-Ho Chou ,  Chia-Jung Nian

IPC: G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC classification number: H05B33/0815 ,  H02M1/4225 ,  H02M2001/0067 ,  Y02B70/126

Abstract: A lighting device is provided, having at least one light emitting diode module, a power factor correction circuit, a non-regulated isolation DC to DC converter and at least one regulated non-isolation DC to DC converter. The power factor correction circuit performs a power factor correction on an AC power source and outputs a corrected DC voltage. The non-regulated isolation DC to DC converter generates an output voltage in a predetermined voltage range according to the corrected DC voltage, wherein the non-regulated isolation DC to DC converter is an open-loop controlled buck DC to DC converter. The regulated non-isolation DC to DC converter generates a fixed current or a fixed voltage according to the output voltage output from the non-regulated isolation DC to DC converter, thereby driving the light emitting diode module.

Abstract translation: 提供一种照明装置，具有至少一个发光二极管模块，功率因数校正电路，非调节隔离DC-DC转换器和至少一个调节非隔离DC-DC转换器。 功率因数校正电路对交流电源进行功率因数校正，输出校正后的直流电压。 非调节隔离DC-DC转换器根据校正的DC电压产生预定电压范围内的输出电压，其中非调节隔离DC-DC转换器是开环控制降压DC-DC转换器。 调节非隔离DC-DC转换器根据从非调节隔离DC-DC转换器输出的输出电压产生固定电流或固定电压，从而驱动发光二极管模块。

公开(公告)号：US20130076244A1

公开(公告)日：2013-03-28

申请号：US13437609

申请日：2012-04-02

Applicant: Ching-Ho Chou ,  Yung-Chuan Lu

Inventor： Ching-Ho Chou ,  Yung-Chuan Lu

IPC: H05B41/295

CPC classification number: H05B41/295 ,  H05B41/2827

Abstract: A current-preheat electronic ballast includes an AC-to-DC converter, a controlling unit, an auxiliary voltage generator, and an inverter. The inverter is connected with the DC bus for converting a high DC voltage into an AC output voltage and generating a resonant current and a lamp filament current to a lamp group. The inverter includes a resonant circuit and a resonant capacitor adjusting circuit. The resonant circuit provides electric energy required to preheat the lamp group. The resonant capacitor adjusting circuit judges whether the inverter is enabled according to the detecting element. After the inverter has been enabled for a delayed time, two high-voltage switching terminals of the resonant capacitor adjusting circuit are correspondingly conducted or shut off, so that an equivalent resonant capacitance value of the resonant circuit is changed and a voltage drop across two ends of a lamp filament of the lamp group is changed.

Abstract translation: 电流预热电子镇流器包括AC-DC转换器，控制单元，辅助电压发生器和逆变器。 逆变器与直流母线连接，用于将高直流电压转换为交流输出电压，并向灯组产生谐振电流和灯丝电流。 逆变器包括谐振电路和谐振电容器调节电路。 谐振电路提供预热灯组所需的电能。 谐振电容调节电路根据检测元件判断逆变器是否使能。 在逆变器使能了延迟时间后，谐振电容调节电路的两个高电压开关端子相应地导通或截止，使得谐振电路的等效谐振电容值发生变化，两端电压降 改变灯组的灯丝。

公开(公告)号：US08378592B2

公开(公告)日：2013-02-19

申请号：US12980449

申请日：2010-12-29

Applicant: Ching-Ho Chou ,  Yung-Chuan Lu ,  Edy Chandra ,  Chao-Wei Tsai

Inventor： Ching-Ho Chou ,  Yung-Chuan Lu ,  Edy Chandra ,  Chao-Wei Tsai

IPC: H05B37/02

CPC classification number: H05B41/2985

Abstract: The configurations of an end of lamp life protection circuit for a ballast and a method thereof are provided in the present invention. The proposed circuit includes a voltage-dividing circuit receiving an input voltage and outputting a first and a second divided voltages and a switch apparatus raising the first divided voltage when the second divided voltage is less than a first pre-determined threshold value and turning off the ballast when the first divided voltage is higher than a second pre-determined threshold value.

Abstract translation: 本发明提供镇流器灯寿命保护电路结束及其方法的结构。 所提出的电路包括接收输入电压并输出第一和第二分压的分压电路和当第二分压低于第一预定阈值时提升第一分压的开关装置， 当第一分压高于第二预定阈值时的镇流器。

公开(公告)号：US08159142B2

公开(公告)日：2012-04-17

申请号：US12233054

申请日：2008-09-18

Applicant: Ching-Ho Chou ,  Yuan-Yuan Zhong ,  Wei-Qiang Zhang ,  Jian-Ping Ying

Inventor： Ching-Ho Chou ,  Yuan-Yuan Zhong ,  Wei-Qiang Zhang ,  Jian-Ping Ying

IPC: H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B41/16 ,  H05B41/24 ,  H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  G05F1/00

CPC classification number: H05B41/295

Abstract: A ballast comprising a first input terminal, a second input terminal, a switch circuit, and a plurality of lamp sets is provided. The switch circuit comprises a first switch and a second switch connected with the first one. The switches are connected with the first and second input terminals respectively. The lamp sets are connected in parallel with each other and have an arrangement sequence. Each of the lamp sets is coupled to the first and second switches and comprises a first lamp having a first filament. The filaments are connected in series according to the arrangement order so that at least one junction is formed in the at least one connection point. The first one of the first filaments is coupled to the first switch. The last one of the first filaments is coupled to the second switch. Thereby, the ballast can be implemented by less internal connection terminals and leads.

Abstract translation: 提供了包括第一输入端子，第二输入端子，开关电路和多个灯组的镇流器。 开关电路包括与第一开关连接的第一开关和第二开关。 开关分别与第一和第二输入端子连接。 灯组彼此并联连接并具有排列顺序。 每个灯组联接到第一和第二开关，并且包括具有第一灯丝的第一灯。 灯丝根据布置顺序串联连接，使得至少一个连接点形成在至少一个连接点上。 第一个灯丝中的第一个灯丝耦合到第一个开关。 第一个灯丝中的最后一个灯丝耦合到第二个开关。 因此，镇流器可以通过较少的内部连接端子和引线来实现。

公开(公告)号：US20120013268A1

公开(公告)日：2012-01-19

申请号：US13092665

申请日：2011-04-22

Applicant: Ching-Ho CHOU ,  Chia-Jung Nian

Inventor： Ching-Ho CHOU ,  Chia-Jung Nian

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H02M1/4225 ,  H02M2001/0067 ,  Y02B70/126

Abstract: A lighting device is provided, having at least one light emitting diode module, a power factor correction circuit, a non-regulated isolation DC to DC converter and at least one regulated non-isolation DC to DC converter. The power factor correction circuit performs a power factor correction on an AC power source and outputs a corrected DC voltage. The non-regulated isolation DC to DC converter generates an output voltage in a predetermined voltage range according to the corrected DC voltage, wherein the non-regulated isolation DC to DC converter is an open-loop controlled buck DC to DC converter. The regulated non-isolation DC to DC converter generates a fixed current or a fixed voltage according to the output voltage output from the non-regulated isolation DC to DC converter, thereby driving the light emitting diode module.

Abstract translation: 提供一种照明装置，具有至少一个发光二极管模块，功率因数校正电路，非调节隔离DC-DC转换器和至少一个调节非隔离DC-DC转换器。 功率因数校正电路对交流电源进行功率因数校正，输出校正后的直流电压。 非调节隔离DC-DC转换器根据校正的DC电压产生预定电压范围内的输出电压，其中非调节隔离DC-DC转换器是开环控制降压DC-DC转换器。 调节非隔离DC-DC转换器根据从非调节隔离DC-DC转换器输出的输出电压产生固定电流或固定电压，从而驱动发光二极管模块。

公开(公告)号：US20060022608A1

公开(公告)日：2006-02-02

申请号：US11165084

申请日：2005-06-23

Applicant: Ching-Ho Chou

Inventor： Ching-Ho Chou

IPC: H05B37/02

CPC classification number: H05B41/2821

Abstract: An electronic ballast includes an inductor, an output transformer, at least two switching elements, a control circuit, a clamping circuit, and at least two return circuits. The inductor is electrically coupled to a DC power supply. The control circuit is electrically connected to the inductor, the output transformer and the switching elements for controlling on/off statuses of the switching elements. The clamping circuit is electrically connected to the inductor, and limits a node voltage among the inductor, the control circuit, and the clamping circuit below a threshold value and generates an output current on condition that the node voltage is larger than the threshold value. Each of the return circuits is electrically connected to the clamping circuit and coupled to both terminals of one of the switching elements for transmitting the output current to the output transformer, thereby permitting a reverse voltage of the switching elements within a maximum allowable range of the switching elements.

Abstract translation: 电子镇流器包括电感器，输出变压器，至少两个开关元件，控制电路，钳位电路和至少两个返回电路。 电感器电耦合到直流电源。 控制电路电连接到电感器，输出变压器和用于控制开关元件的开/关状态的开关元件。 钳位电路电连接到电感器，并且将电感器，控制电路和钳位电路之间的节点电压限制在阈值以下，并且在节点电压大于阈值的条件下产生输出电流。 每个返回电路电连接到钳位电路并且耦合到一个开关元件的两个端子，用于将输出电流传输到输出变压器，从而允许开关元件的反向电压在开关的最大允许范围内 元素。

公开(公告)号：US06936979B2

公开(公告)日：2005-08-30

申请号：US10617335

申请日：2003-07-10

Applicant: San-Jung Lee ,  Ching-Ho Chou ,  Yu-Chi Lee

Inventor： San-Jung Lee ,  Ching-Ho Chou ,  Yu-Chi Lee

IPC: H05B41/392 ,  H05B37/02

CPC classification number: H05B41/3921 ,  H05B41/3925 ,  Y10S315/04

Abstract: The present invention discloses a frequency-modulated dimming control system of a discharge lamp. The frequency-modulated dimming control system of a discharge lamp includes including a voltage regulator having a variable output voltage for converting an input voltage into a bus voltage, wherein a level of the bus voltage is a predetermined ratio of the input voltage, for example 10% of the input voltage, and a ballast circuit for driving the discharge lamp by detecting a variation of the bus voltage and then providing a current to the discharge lamp in response to a frequency modulation of the ballast circuit and the variation of the bus voltage so as to control a light intensity of the discharge lamp.

Abstract translation: 本发明公开了一种放电灯的调频调光控制系统。 放电灯的调频调光控制系统包括具有可变输出电压的电压调节器，用于将输入电压转换成总线电压，其中总线电压的电平是输入电压的预定比例，例如10 输入电压的百分比，以及用于通过检测总线电压的变化来驱动放电灯的镇流器电路，然后响应于镇流器电路的频率调制和总线电压的变化而向放电灯提供电流 以控制放电灯的光强度。

公开(公告)号：US5461978A

公开(公告)日：1995-10-31

申请号：US312645

申请日：1994-09-27

Applicant: Ching-Ho Chou

Inventor： Ching-Ho Chou

IPC: B41F13/30 ,  B41F13/24

CPC classification number: B41F13/30

Abstract: A printing press includes two opposite mounting walls formed with aligned horizontally extending openings in which two sliding seats are mounted slidably and respectively, a printing roller extending horizontally between the mounting walls and having a longitudinal axis and two opposite ends mounted rotatably and respectively to the sliding seats, a printing plate unit mounted securely on the printing roller, a first retaining assembly provided on one of the mounting walls for retaining releasably a first one of the sliding seats in a desired position in the respective opening, and a second retaining assembly provided on the other one of the mounting walls for retaining releasably a second one of the sliding seats in a desired position in the respective opening. The retaining assemblies are actuated simultaneously to cause longitudinal sliding movement of the sliding seats within the openings so as to result in movement of the longitudinal axis of the roller relative to the mounting walls in a direction parallel to the mounting walls. Actuation of the second retaining assembly without actuating the first retaining assembly causes longitudinal sliding movement of the second one of the sliding seats within the respective opening so as to vary an angle formed between the longitudinal axis of the printing roller and one of the mounting walls.

Abstract translation: 印刷机包括形成有对准的水平延伸的开口的两个相对的安装壁，其中两个滑动座分别可滑动地安装，分别安装在安装壁之间水平延伸并具有纵向轴线的两个相对的端部和分别安装到滑动件 座位，安装在印刷辊上的印版单元，设置在一个安装壁上的第一保持组件，用于将可释放地保持在相应开口中所需位置的第一滑动座，以及第二保持组件， 所述安装壁中的另一个用于将所述滑动座中的第二个可释放地保持在相应开口中的期望位置。 保持组件被同时致动以使得滑动座在开口内的纵向滑动运动，从而导致辊的纵向轴线相对于安装壁在平行于安装壁的方向上移动。 在不致动第一保持组件的情况下，第二保持组件的致动导致第二滑动座在相应开口内的纵向滑动运动，从而改变在印刷辊的纵向轴线与其中一个安装壁之间形成的角度。

公开(公告)号：US08890424B2

公开(公告)日：2014-11-18

申请号：US13547213

申请日：2012-07-12

Applicant: Lizhi Xu ,  Weiqiang Zhang ,  Jianping Ying ,  Ching-Ho Chou ,  Hsiang-Chen Wu

Inventor： Lizhi Xu ,  Weiqiang Zhang ,  Jianping Ying ,  Ching-Ho Chou ,  Hsiang-Chen Wu

IPC: H05B37/00

CPC classification number: H05B33/0815 ,  H05B33/0851 ,  Y02B20/347

Abstract: The present invention provides an illumination device, an illumination system, and a lamp. The illumination system includes the illumination device and a light modulation module. The illumination device includes a light emitting diode (LED) array, an alternating current (AC) current source, and an output power control module. The AC current source is electrically coupled to the LED array. The output power control module is electrically coupled to the LED array and the AC current source. The LED array, the AC current source, and the output power control module together form a closed-loop control loop. The light modulation module is electrically coupled to the closed-loop control loop for modulating illumination brightness of the LED.

Abstract translation: 本发明提供一种照明装置，照明系统和灯。 照明系统包括照明装置和光调制模块。 照明装置包括发光二极管（LED）阵列，交流（AC）电流源和输出功率控制模块。 AC电流源电耦合到LED阵列。 输出功率控制模块电耦合到LED阵列和AC电流源。 LED阵列，AC电流源和输出功率控制模块一起形成闭环控制回路。 光调制模块电耦合到闭环控制环路，用于调制LED的照明亮度。

公开(公告)号：US08587207B2

公开(公告)日：2013-11-19

申请号：US13450489

申请日：2012-04-19

Applicant: Ching-Ho Chou ,  Tsung-Yu Ou

Inventor： Ching-Ho Chou ,  Tsung-Yu Ou

IPC: H05B37/02

CPC classification number: H05B41/2821 ,  H05B41/2858 ,  Y02B20/186

Abstract: An electronic ballast for a light emitting load is provided, and includes a transformer module, a resonance module, a high-frequency push-pull inverter and a driving controller module. The high-frequency push-pull inverter includes a first switch component and a second switch component. The driving controller module is used for generating and providing an asymmetric driving waveform to the first switch component and the second switch component. The asymmetric driving waveform includes a first discharging waveform portion for discharging and turning off the first switch component, and also a second discharging waveform portion for discharging and turning off the second switch component. The first and second discharging waveform portions are different in current amplitudes and time spans.

Abstract translation: 提供了用于发光负载的电子镇流器，并且包括变压器模块，谐振模块，高频推挽逆变器和驱动控制器模块。 高频推挽逆变器包括第一开关元件和第二开关元件。 驱动控制器模块用于产生并向第一开关部件和第二开关部件提供非对称驱动波形。 非对称驱动波形包括用于放电和关断第一开关部件的第一放电波形部分，以及用于放电和关断第二开关部件的第二放电波形部分。 第一和第二放电波形部分的电流幅度和时间跨度不同。