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    Flashlight control circuit
    1.
    发明授权
    Flashlight control circuit 有权
    手电筒控制电路

    公开(公告)号：US07106008B2

    公开(公告)日：2006-09-12

    申请号：US10930996

    申请日：2004-08-31

    Applicant: Yu-Shan Chu ,  Ming-Nan Chuang

    Inventor： Yu-Shan Chu ,  Ming-Nan Chuang

    IPC: H05B41/14

    CPC classification number: H05B41/325 ,  G03B7/16 ,  G03B15/05 ,  G03B2215/0503 ,  H04N5/2354

    Abstract: A flashlight control circuit is provided to control the flash according to an exposure voltage and a predetermined voltage. Either a first comparator, second comparator and logic gate or a comparator, a first inverter, a first transistor, a first logic gate and a second logic gate may be included in the control circuit. The provided circuit enables the capacitor to discharge promptly when the trigger signal stops. Therefore, an additional control signal for discharge is not necessary. Furthermore, the circuit has a clamping circuit to clamp the exposure voltage at a lower level than the predetermined voltage according to a full flash signal.

    Abstract translation: 提供手电筒控制电路以根据曝光电压和预定电压来控制闪光。 控制电路中可以包括第一比较器，第二比较器和逻辑门或比较器，第一反相器，第一晶体管，第一逻辑门和第二逻辑门。 当触发信号停止时，所提供的电路使电容器能够及时放电。 因此，不需要用于放电的附加控制信号。 此外，电路具有钳位电路，以根据全闪光信号将曝光电压钳位在比预定电压低的水平。

    SWITCH CONTROLLER FOR SWITCHING POWER SUPPLY AND METHOD THEREOF
    2.
    发明申请
    SWITCH CONTROLLER FOR SWITCHING POWER SUPPLY AND METHOD THEREOF 有权
    用于切换电源的开关控制器及其方法

    公开(公告)号：US20110141778A1

    公开(公告)日：2011-06-16

    申请号：US12910863

    申请日：2010-10-24

    Applicant: Tsung-Hsiu Wu ,  Wen-Chung Yeh ,  Ming-Nan Chuang

    Inventor： Tsung-Hsiu Wu ,  Wen-Chung Yeh ,  Ming-Nan Chuang

    IPC: H02M7/44

    CPC classification number: H02M1/4225 ,  Y02B70/126

    Abstract: A switch controller for switching power supply is coupled to an auxiliary winding of the switching power supply through a detecting resistor. The switch controller provides a detecting current passing through the detecting resistor for keeping the voltage level of a detecting signal transmitted by the detecting resistor higher than a predetermined voltage. In this way, the switch controller can avoid the latch-up phenomenon caused by receiving the detecting signal of the negative voltage level. In addition, the switch controller can detect the magnitude of an input voltage of the switching power supply by means of the detecting current, and accordingly control the operation of the switching power supply.

    Abstract translation: 用于开关电源的开关控制器通过检测电阻器耦合到开关电源的辅助绕组。 开关控制器提供通过检测电阻器的检测电流，以保持检测电阻器发送的检测信号的电压电平高于预定电压。 以这种方式，开关控制器可以避免由接收负电压电平的检测信号引起的闩锁现象。 此外，开关控制器可以通过检测电流来检测开关电源的输入电压的大小，从而控制开关电源的工作。

    Voltage converter for preventing switch device from being damaged by voltage spike by utilizing protection circuit
    3.
    发明授权
    Voltage converter for preventing switch device from being damaged by voltage spike by utilizing protection circuit 有权
    电压转换器通过利用保护电路防止开关器件被电压尖峰损坏

    公开(公告)号：US07821750B2

    公开(公告)日：2010-10-26

    申请号：US11468765

    申请日：2006-08-30

    Applicant: Yi-Shan Chu ,  Ming-Nan Chuang

    Inventor： Yi-Shan Chu ,  Ming-Nan Chuang

    IPC: H02H7/10

    CPC classification number: H02H9/045

    Abstract: A voltage converter includes an electronic induction device, a switch device, a protection circuit, and a control circuit. The switch device, electrically connected to the electronic induction device, is utilized for selectively establishing an electrical connection between the electronic induction device and a predetermined voltage level according to a control signal. The protection circuit, coupled to the electronic induction device, is utilized for selectively establishing an electrical connection between the electronic induction device and the predetermined voltage level, wherein the protection circuit is enabled to establish the electrical connection when a current passing through the switch device exceeds a predetermined current limit. The control circuit, coupled to the switch device, is utilized for generating the control signal.

    Abstract translation: 电压转换器包括电子感应装置，开关装置，保护电路和控制电路。 电连接到电子感应装置的开关装置用于根据控制信号选择性地建立电子感应装置与预定电压电平之间的电连接。 耦合到电子感应装置的保护电路用于选择性地建立电子感应装置与预定电压电平之间的电连接，其中当通过开关装置的电流超过时，保护电路能够建立电连接 预定电流限制。 耦合到开关装置的控制电路用于产生控制信号。

    High voltage charging circuit
    5.
    发明授权
    High voltage charging circuit 有权
    高压充电电路

    公开(公告)号：US07511974B2

    公开(公告)日：2009-03-31

    申请号：US10972123

    申请日：2004-10-22

    Applicant: Yi-Shan Chu ,  Ming-Nan Chuang ,  Yuan-Wen Chang

    Inventor： Yi-Shan Chu ,  Ming-Nan Chuang ,  Yuan-Wen Chang

    IPC: H02M3/335

    CPC classification number: H02M1/40 ,  H02M3/33507

    Abstract: A high voltage charging circuit is provided with the ability of rapid charging. The circuit is composed of a turn-on control circuit, a turn-off control circuit and a transistor. The turn-on control circuit is adopted to set a turn-on time of a transistor such that the transformer may store magnetic energy, while the turn-off control circuit is used to set a turn-off time of the transistor such that the transformer may release the magnetic energy to charge a high voltage capacitor. Smaller inductance reduces the turn-on time of the power transistor owing to the maximum current of the primary side of the transformer. Therefore, a small-sized transformer may be employed to reduce the volume of the charging circuit with nonoccurrence of saturation.

    Abstract translation: 高压充电电路具有快速充电的能力。 电路由导通控制电路，关断控制电路和晶体管组成。 采用导通控制电路来设置晶体管的接通时间，使得变压器可以存储磁能，而关断控制电路用于设置晶体管的截止时间，使得变压器 可以释放磁能以对高压电容器充电。 由于变压器初级侧的最大电流，较小的电感会降低功率晶体管的导通时间。 因此，可以采用小型变压器来减小充电电路的体积而不发生饱和。

    Apparatus for preventing capacitor charger from overcharging and method thereof
    6.
    发明授权
    Apparatus for preventing capacitor charger from overcharging and method thereof 有权
    用于防止电容器充电器过度充电的装置及其方法

    公开(公告)号：US07446506B2

    公开(公告)日：2008-11-04

    申请号：US11306857

    申请日：2006-01-13

    Applicant: Ming-Nan Chuang ,  Yi-Shan Chu

    Inventor： Ming-Nan Chuang ,  Yi-Shan Chu

    IPC: H02J7/00 ,  H02J7/04 ,  H02J7/16

    CPC classification number: H02H7/16 ,  H01G9/155 ,  H02J7/0031 ,  H02J7/025 ,  H02J50/05 ,  H02J50/80 ,  Y02E60/13

    Abstract: The present invention provides an apparatus for controlling a capacitor charging circuit and a method thereof. The apparatus includes a first comparator, a second comparator, and a controller. The first comparator, which is coupled to the charging circuit, receives a voltage level and compares the voltage level with a reference voltage level to generate a first indication signal. The voltage level corresponds to an output voltage of the charging circuit. The second comparator receives a control value and compares the control value with a threshold value to generate a second indication signal. The controller, which is coupled to the charging circuit, the first comparator and the second comparator, generates a control signal according to the first indication signal and the second indication signal to turn the charging circuit on and off, and further generates the control value according to the control signal.

    Abstract translation: 本发明提供一种电容充电电路的控制装置及其方法。 该装置包括第一比较器，第二比较器和控制器。 耦合到充电电路的第一比较器接收电压电平，并将电压电平与参考电压电平进行比较以产生第一指示信号。 电压电平对应于充电电路的输出电压。 第二比较器接收控制值并将控制值与阈值进行比较以产生第二指示信号。 耦合到充电电路的控制器，第一比较器和第二比较器，根据第一指示信号和第二指示信号产生控制信号，以打开和关闭充电电路，并进一步产生控制值 到控制信号。

    Flashlight control circuit
    7.
    发明申请
    Flashlight control circuit 有权
    手电筒控制电路

    公开(公告)号：US20050231129A1

    公开(公告)日：2005-10-20

    申请号：US10930996

    申请日：2004-08-31

    Applicant: Yi-Shan Chu ,  Ming-Nan Chuang

    Inventor： Yi-Shan Chu ,  Ming-Nan Chuang

    IPC: G03B7/16 ,  G03B15/03 ,  G03B15/05 ,  H04N5/235 ,  H05B41/32

    CPC classification number: H05B41/325 ,  G03B7/16 ,  G03B15/05 ,  G03B2215/0503 ,  H04N5/2354

    Abstract: A flashlight control circuit is provided to control the flash according to an exposure voltage and a predetermined voltage. Either a first comparator, second comparator and logic gate or a comparator, a first inverter, a first transistor, a first logic gate and a second logic gate may be included in the control circuit. The provided circuit enables the capacitor to discharge promptly when the trigger signal stops. Therefore, an additional control signal for discharge is not necessary. Furthermore, the circuit has a clamping circuit to clamp the exposure voltage at a lower level than the predetermined voltage according to a full flash signal.

    Abstract translation: 提供手电筒控制电路以根据曝光电压和预定电压来控制闪光。 控制电路中可以包括第一比较器，第二比较器和逻辑门或比较器，第一反相器，第一晶体管，第一逻辑门和第二逻辑门。 当触发信号停止时，所提供的电路使电容器能够及时放电。 因此，不需要用于放电的附加控制信号。 此外，电路具有钳位电路，以根据全闪光信号将曝光电压钳位在比预定电压低的水平。

    High voltage charging circuit for charging a high voltage capacitor
    8.
    发明申请
    High voltage charging circuit for charging a high voltage capacitor 有权
    高压充电电路，用于对高压电容器充电

    公开(公告)号：US20050094419A1

    公开(公告)日：2005-05-05

    申请号：US10919301

    申请日：2004-08-17

    Applicant: Yi-Shan Chu ,  Ming-Nan Chuang ,  Yuan-Wen Chang

    Inventor： Yi-Shan Chu ,  Ming-Nan Chuang ,  Yuan-Wen Chang

    IPC: H02M3/335

    CPC classification number: H02M3/33507

    Abstract: A high voltage charging circuit includes an activation control circuit, an inactivation control circuit and a power transistor. The activation control circuit is used for controlling an ON time period of the power transistor to enable the transformer to store excited-magnetic energy; the inactivation control circuit is used for controlling an OFF time period of the power transistor to make the transformer to release the excited-magnetic energy and use the excited-magnetic energy to charge the high voltage capacitor. Since the user can select a smaller Lp to keep constant the maximum value IP,max for the primary side current IP, the period tON can be made smaller as well, which means that a transformer 14 with a smaller volume can be utilized to reduce the entire size of the high voltage charging circuit.

    Abstract translation: 高压充电电路包括启动控制电路，失活控制电路和功率晶体管。 激活控制电路用于控制功率晶体管的接通时间段，以使变压器能够存储激发磁能; 失活控制电路用于控制功率晶体管的OFF时间周期，以使变压器释放激发磁能，并使用激发磁能对高压电容器充电。 由于用户可以选择较小的Lp来保持初级侧电流I P P的最大值I SUB，最大值，所以周期t ON ON >也可以变得更小，这意味着可以利用具有较小体积的变压器14来减小高压充电电路的整体尺寸。

    POWER CONVERTER WITH PROTECTION MECHANISM FOR DIODE IN OPEN-CIRCUIT CONDITION AND PULSE-WIDTH-MODULATION CONTROLLER THEREOF
    10.
    发明申请
    POWER CONVERTER WITH PROTECTION MECHANISM FOR DIODE IN OPEN-CIRCUIT CONDITION AND PULSE-WIDTH-MODULATION CONTROLLER THEREOF 审中-公开
    具有开路状态下二极管保护机构的电源转换器及其脉宽调制控制器

    公开(公告)号：US20090115390A1

    公开(公告)日：2009-05-07

    申请号：US11934791

    申请日：2007-11-05

    Applicant: Chen-Min Chen ,  Ching-Tsan Lee ,  Yi-Shan Chu ,  Ming-Nan Chuang

    Inventor： Chen-Min Chen ,  Ching-Tsan Lee ,  Yi-Shan Chu ,  Ming-Nan Chuang

    IPC: G05F1/44 ,  G05F1/10

    CPC classification number: H02M1/32 ,  H02M3/155 ,  H02M2001/0041

    Abstract: A power converter with a protection mechanism for a diode in an open-circuit condition includes a DC to Dc (DC/DC) conversion circuit, a detection and protection circuit, a pulse-width-modulation (PWM) signal generator, and a logic gate. The detection and protection circuit is used for detecting an open-circuit condition of the diode of the DC/DC conversion circuit. The logic gate receives an output signal of the detection and protection circuit and a PWM signal outputted by the PWM signal generator. When the diode is in an open-circuit condition, the PWM signal cannot be transmitted to a power switch of the DC/DC conversion circuit due to the output signal of the detection and protection circuit.

    Abstract translation: 具有开路状态的二极管保护机构的电力转换器包括直流到直流（DC / DC）转换电路，检测和保护电路，脉冲宽度调制（PWM）信号发生器和逻辑 门。 检测和保护电路用于检测DC / DC转换电路二极管的开路状态。 逻辑门接收检测和保护电路的输出信号以及由PWM信号发生器输出的PWM信号。 当二极管处于开路状态时，由于检测和保护电路的输出信号，PWM信号不能传输到DC / DC转换电路的电源开关。

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