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    • 1. 发明申请
    • LIGHT DEVICE AND POWER CONTROL CIRCUIT THEREOF
    • 光器件及其功率控制电路
    • US20120176054A1
    • 2012-07-12
    • US13214502
    • 2011-08-22
    • Chi-Hung KUOChung-Ken CHENGLi-Yong KE
    • Chi-Hung KUOChung-Ken CHENGLi-Yong KE
    • H05B37/02
    • H05B33/0812H05B33/0824Y02B20/345
    • A light device comprising a light emitting unit, a voltage control unit, and a current control unit is provided. The light emitting unit is capable of receiving DC power. The voltage control unit has a power input terminal, a power output terminal, and a voltage setting member, with the power input terminal connecting with the light emitting unit, the voltage setting member having a threshold value to control the voltage of the power output terminal in a value equal to or lower than the threshold value. The current control unit has a voltage regulating member and a current adjusting member, with the voltage regulating member connecting with the power output terminal of the voltage control unit and generating a stable DC voltage, and with the current adjusting member connected between the voltage regulating member and a ground point to stabilize a current passing through the current adjusting member.
    • 提供了一种包括发光单元,电压控制单元和电流控制单元的灯装置。 发光单元能够接收直流电力。 电压控制单元具有电源输入端子,电力输出端子和电压设定构件,电力输入端子与发光单元连接,电压设定构件具有阈值以控制电力输出端子的电压 其值等于或小于阈值。 电流控制单元具有电压调节构件和电流调节构件,电压调节构件与电压控制单元的功率输出端连接并产生稳定的直流电压,并且电流调节构件连接在调压构件 以及用于稳定通过电流调节构件的电流的接地点。
    • 6. 发明申请
    • AC LED LAMP
    • 交流LED灯
    • US20110175537A1
    • 2011-07-21
    • US13006054
    • 2011-01-13
    • Alex HORNGChung-Ken ChengChi-Hung KuoKuan-Yin Hou
    • Alex HORNGChung-Ken ChengChi-Hung KuoKuan-Yin Hou
    • H05B37/02
    • H05B33/0809H05B33/0803H05B33/0812H05B33/0821Y02B20/343
    • An alternating current (AC) light-emitting diode (LED) lamp includes a first AC power end, a second AC power end, a lighting module and a direct current (DC) power output circuit. The lighting module has a first end, a second end and at least one LED unit, wherein the first end is electrically coupled to the first AC power end. The at least one LED unit has one or more LEDs connected in series. The DC power output circuit has a first end and a second end, wherein the second end of the DC power output circuit is electrically coupled to the second AC power end, while the first end of the DC power output circuit is electrically coupled to the second end of the lighting module. The DC power output circuit has a DC output side.
    • 交流(AC)发光二极管(LED)灯包括第一AC电源端,第二AC电源端,照明模块和直流(DC)电力输出电路。 照明模块具有第一端,第二端和至少一个LED单元,其中第一端电耦合到第一AC电力端。 所述至少一个LED单元具有串联连接的一个或多个LED。 DC功率输出电路具有第一端和第二端,其中DC功率输出电路的第二端电耦合到第二AC电源端,而DC功率输出电路的第一端电耦合到第二端 结束照明模块。 直流电源输出电路具有直流输出侧。
    • 7. 发明授权
    • Pulse-width-modulation motor drive circuit having potential limiter
    • 具有电位限制器的脉宽调制电机驱动电路
    • US07501781B2
    • 2009-03-10
    • US11643668
    • 2006-12-22
    • Alex HorngChung-Ken ChengCheng-Nan Tsai
    • Alex HorngChung-Ken ChengCheng-Nan Tsai
    • G05B11/28
    • H02P6/16H02P1/16H02P6/20
    • A PWM motor drive circuit includes a drive IC member, a PWM converter circuit and a potential limiter. The drive IC member electrically connects with a motor coil and further includes a pin electrically connected with the PWM converter circuit. The potential limiter has a first terminal electrically connected with a point between the pin of the drive IC member and the PWM converter circuit, and a second terminal electrically connected with a power source to supply an initial voltage to the pin of the drive IC member via the potential limiter. When the motor starts, the potential limiter can adjust of the initial voltage supplying to the pin of the drive IC member so that the drive IC member cannot unexpectedly enter a stop or high-speed mode.
    • PWM电动机驱动电路包括驱动IC部件,PWM转换器电路和电位限制器。 驱动IC部件与电动机线圈电连接,还包括与PWM转换电路电连接的销。 电位限制器具有与驱动IC部件的引脚与PWM转换电路之间的点电连接的第一端子和与电源电连接的第二端子,用于向驱动IC部件的引脚经由 潜在限制器。 当电动机起动时,电位限制器可以调节向驱动IC元件的引脚提供的初始电压,使得驱动IC元件不能意外地进入停止或高速模式。
    • 8. 发明申请
    • Pulse-width-modulation motor drive circuit having potential limiter
    • 具有电位限制器的脉宽调制电机驱动电路
    • US20080101778A1
    • 2008-05-01
    • US11643668
    • 2006-12-22
    • Alex HorngChung-Ken ChengCheng-Nan Tsai
    • Alex HorngChung-Ken ChengCheng-Nan Tsai
    • H02P7/29
    • H02P6/16H02P1/16H02P6/20
    • A PWM motor drive circuit includes a drive IC member, a PWM converter circuit and a potential limiter. The drive IC member electrically connects with a motor coil and further includes a pin electrically connected with the PWM converter circuit. The potential limiter has a first terminal electrically connected with a point between the pin of the drive IC member and the PWM converter circuit, and a second terminal electrically connected with a power source to supply an initial voltage to the pin of the drive IC member via the potential limiter. When the motor starts, the potential limiter can adjust of the initial voltage supplying to the pin of the drive IC member so that the drive IC member cannot unexpectedly enter a stop or high-speed mode.
    • PWM电动机驱动电路包括驱动IC部件,PWM转换器电路和电位限制器。 驱动IC部件与电动机线圈电连接,还包括与PWM转换电路电连接的销。 电位限制器具有与驱动IC部件的引脚与PWM转换电路之间的点电连接的第一端子和与电源电连接的第二端子,用于向驱动IC部件的引脚经由 潜在限制器。 当电动机起动时,电位限制器可以调节向驱动IC元件的引脚提供的初始电压,使得驱动IC元件不能意外地进入停止或高速模式。
    • 9. 发明授权
    • Frequency-variable pulse-width-modulation motor drive circuit capable of operating under different PWM frequencies
    • 频率可变的脉宽调制电机驱动电路,能够在不同的PWM频率下工作
    • US07265514B1
    • 2007-09-04
    • US11386673
    • 2006-03-23
    • Alex HorngChung-Ken ChengPei-Wei Lo
    • Alex HorngChung-Ken ChengPei-Wei Lo
    • H02P6/08
    • H02P6/16H02P6/08
    • A frequency-variable PWM motor drive circuit includes a drive IC member, a Hall IC member, a PWM converter circuit and a compensation unit. The drive IC member electrically connects with the Hall IC member, the drive IC member further includes a pin electrically connected with the compensation unit and the PWM converter circuit. The PWM converter circuit has a PWM input pin to receive a PWM signal, and converts it into a voltage signal. The compensation unit connects between the pin of the drive IC member and the PWM converter circuit. In operation, the compensation unit can improve a waveform of the voltage signal supplied from the PWM converter circuit, and then output it to the pin of the drive IC member. Consequently, the drive IC member can be steadily operated at predetermined motor speeds under various frequencies of the PWM signals.
    • 频率可变PWM电动机驱动电路包括驱动IC部件,霍尔IC部件,PWM转换电路和补偿部。 驱动IC元件与霍尔IC元件电连接,驱动IC元件还包括与补偿单元和PWM转换电路电连接的引脚。 PWM转换器电路具有PWM输入引脚,用于接收PWM信号,并将其转换为电压信号。 补偿单元连接在驱动IC部件的引脚和PWM转换电路之间。 在操作中,补偿单元可以改善从PWM转换器电路提供的电压信号的波形,然后将其输出到驱动IC构件的引脚。 因此,可以在PWM信号的各种频率下以预定的电动机速度稳定地操作驱动IC部件。