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    LED DRIVE CIRCUIT AND LED ILLUMINATION DEVICE USING SAME
    2.
    发明申请
    LED DRIVE CIRCUIT AND LED ILLUMINATION DEVICE USING SAME 审中-公开
    LED驱动电路和使用相同的LED照明装置

    公开(公告)号：US20090206776A1

    公开(公告)日：2009-08-20

    申请号：US12389074

    申请日：2009-02-19

    申请人： Katsumi INABA

    发明人： Katsumi INABA

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0851 ,  H02M2001/0032 ,  H05B33/0815 ,  H05B33/0818 ,  Y02B70/16

    摘要： An LED drive circuit includes a resistor for setting a constant current, a switching power supply circuit for outputting a DC output voltage and a constant-current power supply circuit that receives the DC output voltage and that outputs the constant current to drive the LED. The LED drive circuit reduces, in dim light mode in which the LED is driven by a current less than that in normal light mode, at least one of the oscillation frequencies of an oscillation circuit included in the switching power supply circuit and an oscillation circuit included in the constant-current power supply circuit as compared with the normal light mode.

    摘要翻译： LED驱动电路包括用于设定恒定电流的电阻器，用于输出DC输出电压的开关电源电路和接收DC输出电压并输出恒定电流以驱动LED的恒流电源电路。 LED驱动电路在以比正常光模式小的电流驱动LED的昏暗光模式下降低包括在开关电源电路中的振荡电路的振荡频率和包括的振荡电路中的至少一个振荡电路 在恒流电源电路中与普通光模式相比。

    Switched-capacitor-type stabilized power circuit
    3.
    发明授权
    Switched-capacitor-type stabilized power circuit 失效
    开关电容式稳压电源电路

    公开(公告)号：US06650555B2

    公开(公告)日：2003-11-18

    申请号：US10180106

    申请日：2002-06-27

    申请人： Tomohiro Suzuki ,  Katsumi Inaba ,  Toshiyuki Fujita

    发明人： Tomohiro Suzuki ,  Katsumi Inaba ,  Toshiyuki Fujita

    IPC分类号： H02M318

    CPC分类号： H02M3/07

    摘要： A switch selects an inputted direct-current voltage at rising of the inputted direct-current voltage, and selects an outputted voltage after the rising of the outputted voltage, for an input to the constant voltage circuit which supplies power to a control circuit. Therefore, once the step-up operation is carried out in a state where the inputted direct-current voltage is at or greater than the operation voltage of the control circuit, the power source of the control circuit is switched to the side of the outputted voltage which has been increased even when the inputted direct-current voltage decreases. Consequently, the voltage of the power source of the control circuit stays at or greater than the operation voltage of the control circuit, and the stabilized power circuit can carry out a proper operation. This function prevents the operation from being inadequate due to a decrease of the inputted direct-current voltage, and a proper operation can be carried out. Further, a signal of the hysteresis comparator is used for the switching for an input of the constant voltage circuit which supplies the power source to the control section. Thus, the circuit can be simplified.

    摘要翻译： 开关在输入的直流电压的上升时选择输入的直流电压，并且在向控制电路供电的恒压电路的输入之后选择输出电压上升之后的输出电压。 因此，一旦在输入的直流电压处于或大于控制电路的工作电压的状态下进行升压操作，则将控制电路的电源切换到输出电压的一侧 即使当输入的直流电压降低时，其也增加。 因此，控制电路的电源的电压保持在或大于控制电路的工作电压，并且稳定的电源电路可以进行适当的操作。 该功能由于输入的直流电压的降低而防止操作不足，可以进行适当的动作。 此外，滞环比较器的信号用于将电源供应给控制部分的恒压电路的输入的切换。 因此，可以简化电路。

    Regulator and electronic apparatus therewith
    7.
    发明申请
    Regulator and electronic apparatus therewith 失效
    调节器和电子设备

    公开(公告)号：US20060164770A1

    公开(公告)日：2006-07-27

    申请号：US11329253

    申请日：2006-01-11

    申请人： Katsumi Inaba

    发明人： Katsumi Inaba

    IPC分类号： H02H9/04

    CPC分类号： H02M1/32 ,  H02H9/042 ,  H02M3/156

    摘要： To reduce the electric power wasted in an overvoltage protection circuit, a regulator IC 100 incorporates an overvoltage protection circuit 105 that stops the output operation of the regulator when the output voltage Vo becomes higher than a predetermined threshold voltage Vth1. The overvoltage protection circuit 105 includes switch means FET3 that turns on and off the overvoltage protection operation thereof according to a predetermined control signal.

    摘要翻译： 为了减少浪费在过电压保护电路中的电力，调节器IC100包含过电压保护电路105，当输出电压Vo变得高于预定的阈值电压Vth 1时，停止调节器的输出操作。 过电压保护电路105包括根据预定控制信号接通和断开其过电压保护操作的开关装置FET 3。

    Stabilized power unit
    8.
    发明授权
    Stabilized power unit 失效
    稳定动力装置

    公开(公告)号：US06624619B2

    公开(公告)日：2003-09-23

    申请号：US10162063

    申请日：2002-06-05

    申请人： Toshiyuki Fujita ,  Katsumi Inaba ,  Tomohiro Suzuki

    发明人： Toshiyuki Fujita ,  Katsumi Inaba ,  Tomohiro Suzuki

    IPC分类号： G05F140

    CPC分类号： H02M3/07 ,  H02M1/36 ,  Y10S323/901

    摘要： A control section controls a switch to a charge period so as to charge a voltage-increasing capacitor at a start up. Then, the control section controls the switch to a voltage-increasing period so as to increase a voltage by a voltage-increasing capacitor and charges the output capacitor. The switching section alternately switches the charge period and the voltage-increasing period so that the charged voltage of the output capacitor, i.e., the output voltage is always stabilized within a range of the output voltage in a steady state. Here, a soft start circuit controls the switching section to carry out the switching operation so that the charged voltage always becomes not more than the output voltage in the steady state at the start-up.

    摘要翻译： 控制部分控制开关到充电周期，以便在启动时对增压电容器充电。 然后，控制部分将开关控制到增压周期，以便通过增压电容器增加电压并对输出电容器充电。 开关部分交替地切换充电周期和增压周期，使得输出电容器的充电电压，即输出电压在稳定状态下始终稳定在输出电压的范围内。 这里，软启动电路控制开关部分进行开关操作，使得充电电压总是在启动时稳定在稳定状态下的输出电压以上。

    Regulated power source circuit including an overcurrent detecting mechanism for eliminating loss in the output control element
    9.
    发明授权
    Regulated power source circuit including an overcurrent detecting mechanism for eliminating loss in the output control element 失效
    包括用于消除输出控制元件中的损耗的过电流检测机构的稳压电源电路

    公开(公告)号：US06429631B2

    公开(公告)日：2002-08-06

    申请号：US09794363

    申请日：2001-02-28

    申请人： Katsumi Inaba ,  Tomohiro Suzuki ,  Kohji Hisakawa ,  Tsutomu Satou

    发明人： Katsumi Inaba ,  Tomohiro Suzuki ,  Kohji Hisakawa ,  Tsutomu Satou

    IPC分类号： G05F1573

    CPC分类号： G05F1/575 ,  G05F1/5735 ,  Y10S323/901

    摘要： In the regulated power supply circuit, an overcurrent detection circuit detects the flow of an overcurrent through a transistor acting as an output control element and supplies a result of the detection to a cut-off operation prohibition circuit. During non-startup time of the regulated power supply circuit, the cut-off operation prohibition circuit simply relays a result of the overcurrent detection circuit detecting an overcurrent to a cut-off circuit without introducing any changes to the result. The cut-off circuit increases a base potential of the transistor according to the result of the detection of an overcurrent to cut off the output of the transistor. It is ensured that the output voltage rises even if the overcurrent detection circuit has activated the cut-off circuit upon detection of the overcurrent temporarily passing through the transistor during a startup. Therefore, the cut-off operation prohibition circuit prohibits the cut-off circuit from performing the cut-off operation from the outset to the end of the startup. Hence, a regulated power supply circuit can be provided which, even if an overcurrent is detected, develops no loss in the transistor during non-startup time.

    摘要翻译： 在稳压电源电路中，过电流检测电路检测作为输出控制元件的晶体管的过电流，并将检测结果提供给截止运算禁止电路。 在稳定电源电路的非启动时间期间，截止操作禁止电路简单地将过电流检测电路的结果中断到截止电路，而不会对结果进行任何改变。 截止电路根据检测过电流的结果增加晶体管的基极电位，以切断晶体管的输出。 即使过电流检测电路在启动期间检测到临时通过晶体管的过电流检测到激活截止电路，也能确保输出电压上升。 因此，截止操作禁止电路禁止截止电路从开始到启动结束时执行截止操作。 因此，可以提供稳定的电源电路，其即使检测到过电流，在非启动时也不会在晶体管中产生损耗。

    ILLUMINATION LIGHT EMITTING ELEMENT AND ILLUMINATION DEVICE PROVIDED THEREWITH
    10.
    发明申请
    ILLUMINATION LIGHT EMITTING ELEMENT AND ILLUMINATION DEVICE PROVIDED THEREWITH 审中-公开
    照明灯发光元件和照明设备

    公开(公告)号：US20080315783A1

    公开(公告)日：2008-12-25

    申请号：US12134926

    申请日：2008-06-06

    申请人： Katsumi INABA

    发明人： Katsumi INABA

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0851 ,  H05B33/0815 ,  H05B33/0818 ,  H05B41/28

    摘要： An illumination light emitting element driving circuit includes a power factor improving circuit (2). The power factor improving circuit (2), when a load (illumination light emitting diode 17) of the illumination light emitting element driving circuit is light, performs operation (including stopping the operation) different from operation performed when the load is not light to thereby make power consumption lower than power consumption during the operation performed when the load is not light.

    摘要翻译： 照明发光元件驱动电路包括功率因数改善电路（2）。 功率因数改善电路（2）当照明发光元件驱动电路的负载（照明发光二极管17）为浅时，进行与负载不轻的动作不同的动作（包括停止动作），从而 在负载不亮时，功耗低于运行时的功耗。