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公开(公告)号：US07888977B2
公开(公告)日：2011-02-15
申请号：US12478730
申请日：2009-06-04
申请人： Kang Sheng
发明人： Kang Sheng
IPC分类号： H03K3/00
摘要： An electronic device for delivering DC power includes a load, a power end, an upper gate switch including a first end coupled to the power, a second end, and a third end, for conducting connection between the first and third ends according to the signal level of the second end, a lower gate switch including a first end coupled to the third end of the upper gate switch, a second end, and a third end coupled to ground, for conducting connection between the first and third ends according to the signal level of the second end, an inductor, and a switch control unit, coupled to the second end of the upper gate switch and the second end of the lower gate switch, for switching the upper gate switch between an ON state and an OFF state, and switching the lower gate switch between an ON state and a semi-ON state.
摘要翻译： 用于传送直流电力的电子设备包括负载，电源端，包括耦合到电源的第一端的上部栅极开关，第二端和第三端，用于根据信号在第一和第三端之间进行连接 第二端的电平，下栅极开关，包括耦合到上栅极开关的第三端的第一端，第二端和耦合到地的第三端，用于根据信号在第一端和第三端之间进行连接 第二端的电平，电感器和开关控制单元，耦合到上栅极开关的第二端和下栅极开关的第二端，用于在接通状态和断开状态之间切换上栅极开关， 并且在ON状态和半ON状态之间切换下栅极开关。
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公开(公告)号：US07667543B2
公开(公告)日：2010-02-23
申请号：US12105288
申请日：2008-04-18
申请人： Fu-Yuan Chen , Chung-An Hsieh , Yueh-Ping Yu
发明人： Fu-Yuan Chen , Chung-An Hsieh , Yueh-Ping Yu
IPC分类号： H03F3/04
CPC分类号： H03F1/0211
摘要： A power supply device for driving first and second amplifiers includes a first power generator, a second power generator, a charge pump and a control unit. The first power generator provides a first voltage for first power reception ends of the first and second amplifiers. The second power generator provides a second voltage. The charge pump is coupled between the second power generator and a second power reception end of the first amplifier and between the second power generator and a second power reception end of the second amplifier, and is used for generating a third voltage for the first and second amplifiers according to the second voltage. The control unit is coupled to the second power generator and is used for controlling the second power generator, so as to adjust the second voltage to make the third voltage equal to a multiple of the first voltage.
摘要翻译： 用于驱动第一和第二放大器的电源装置包括第一发电机，第二发电机，电荷泵和控制单元。 第一发电机为第一和第二放大器的第一电力接收端提供第一电压。 第二发电机提供第二电压。 电荷泵耦合在第二发电机和第一放大器的第二电力接收端之间以及第二发电机与第二放大器的第二电力接收端之间，并且用于产生用于第一和第二放大器的第三电压 放大器根据第二电压。 控制单元耦合到第二发电机并用于控制第二发电机，以便调节第二电压以使第三电压等于第一电压的倍数。
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公开(公告)号：US20090283796A1
公开(公告)日：2009-11-19
申请号：US12186966
申请日：2008-08-06
申请人： Florin Udrea , Chih-Wei Hsu
发明人： Florin Udrea , Chih-Wei Hsu
IPC分类号： H01L29/739
CPC分类号： H01L29/7397 , H01L29/0834 , H01L29/66348
摘要： A bipolar high voltage/power semiconductor device having a low voltage terminal and a high voltage terminal is disclosed. The bipolar high voltage/power semiconductor is a vertical insulated gate bipolar transistor with injection efficiency adjustment formed by highly doped n+ islands in a p+ anode layer. The device has a vertical drift region of a first conductivity type and having vertical first and second ends. In one example, a region of the second conductivity type is provided at the second end of the vertical drift region connected directly to the vertical high voltage terminal. In another example, a vertical buffer region of the first conductivity type is provided at the vertical second end of the vertical drift region and a vertical region of a second conductivity type is provided on the other side of the vertical buffer region and connected to the vertical high voltage terminal. A plurality of electrically floating lateral island regions are provided within the vertical drift region at or towards the vertical second end of the vertical drift region, the plurality of electrically floating lateral island regions being of the first conductivity type and being more highly doped than the drift region.
摘要翻译： 公开了一种具有低电压端子和高电压端子的双极型高压/功率半导体器件。 双极性高压/功率半导体是垂直绝缘栅双极晶体管，其具有由p +阳极层中的高掺杂n +岛形成的注入效率调节。 该器件具有第一导电类型的垂直漂移区，并具有垂直的第一和第二端。 在一个示例中，第二导电类型的区域设置在直接连接到垂直高压端子的垂直漂移区域的第二端。 在另一示例中，第一导电类型的垂直缓冲区域设置在垂直漂移区域的垂直第二端，并且第二导电类型的垂直区域设置在垂直缓冲区域的另一侧并连接到垂直方向 高压端子。 多个电浮动横向岛区域设置在垂直漂移区域内或垂直于垂直漂移区域的垂直第二端处，多个电浮动横向岛区域是第一导电类型并且比漂移更高的掺杂 地区。
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公开(公告)号：US07609101B2
公开(公告)日：2009-10-27
申请号：US11907313
申请日：2007-10-11
申请人： Ching-Sheng Li
发明人： Ching-Sheng Li
摘要： The present invention relates to a pulse width modulation switching direct voltage circuit. The PWM circuit comprises a first passive device, a second passive device and a third passive device connected in series between a power supply and a ground such that the first passive device is connected to the second passive device and the second passive device is connected to the third passive device, and a fourth passive device which is connected in-parallel between an output end and a point between the first passive device and the second passive device, wherein the rated value of the fourth passive device is at least three times more than the rated value of the first passive device. Herewith, the voltage-cycle relationship of the PWM circuit becomes linear. Under such a state, the PWM circuit is enabled with good work efficiency.
摘要翻译： 本发明涉及脉宽调制切换直流电压电路。 PWM电路包括串联连接在电源和接地之间的第一无源器件，第二无源器件和第三无源器件，使得第一无源器件连接到第二无源器件，而第二无源器件连接到 第三无源器件和第四无源器件，其在输出端和第一无源器件与第二无源器件之间的点之间并联连接，其中第四无源器件的额定值为至少三倍于 第一被动设备的额定值。 因此，PWM电路的电压 - 周期关系变成线性的。 在这种状态下，PWM电路能够实现良好的工作效率。
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公开(公告)号：US20090108786A1
公开(公告)日：2009-04-30
申请号：US11976984
申请日：2007-10-30
申请人： Ching-Sheng Li
发明人： Ching-Sheng Li
摘要： A motor protection device includes a detection unit for detecting an operating state of a motor and outputting a detection signal; a reference unit for generating a variable reference signal; a discriminating unit for comparing the detection signal with the variable reference signal to discriminate whether the motor is in an abnormal condition; and a protection unit that receives a result of discrimination from the discriminating unit and limits a driving current for the motor when the motor is in an abnormal condition. The motor protection device is characterized in that the reference unit adjusts the variable reference signal according to a motor rotation detection signal, so that the motor rotation detection signal and the detection signal are used synchronously in discriminating whether the motor is in an abnormal condition, and the motor in an abnormal condition may be doubly protected.
摘要翻译： 电动机保护装置包括：检测电动机的运转状态并输出检测信号的检测部; 用于产生可变参考信号的参考单元; 鉴别单元，用于将检测信号与可变参考信号进行比较，以区分电动机是否处于异常状态; 以及保护单元，其接收到识别单元的鉴别结果，并且当电动机处于异常状态时限制电动机的驱动电流。 电动机保护装置的特征在于，基准单元根据电动机旋转检测信号来调整可变基准信号，使得电动机转动检测信号和检测信号被同步地使用以区分电动机是否处于异常状态，以及 电机处于异常状态可能会受到双重保护。
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公开(公告)号：US20070146066A1
公开(公告)日：2007-06-28
申请号：US11365708
申请日：2006-03-01
申请人： Ming Chang , Fu Chen
发明人： Ming Chang , Fu Chen
IPC分类号： H03F3/38
CPC分类号： H03F3/217
摘要： The present invention discloses a method for reducing switching interference in a switching amplifier. The switching amplifier includes a first half circuit having a first modulator and a first driver circuit, a second half circuit having a second modulator and a second driver circuit, a first reference wave generator for a first reference wave, and a second reference wave generator for a second reference wave. A first input signal and a second input signal are inputted to the first modulator and the second modulator, respectively. A first modulated signal and a second modulated signal are generated and inputted to the first driver circuit and second driver circuit, respectively. There is a time delay between the switching points, wherein the time delay is large enough to avoid mutual interference. Therefore, distortion of the output signal can be eliminated while the input signals are small.
摘要翻译： 本发明公开了一种减少开关放大器的开关干扰的方法。 开关放大器包括具有第一调制器和第一驱动器电路的第一半电路，具有第二调制器和第二驱动器电路的第二半电路，用于第一参考波的第一参考波发生器和用于 第二个参考波。 第一输入信号和第二输入信号分别输入到第一调制器和第二调制器。 第一调制信号和第二调制信号被分别产生并输入到第一驱动电路和第二驱动电路。 在切换点之间存在时间延迟，其中时间延迟足够大以避免相互干扰。 因此，输入信号较小时可以消除输出信号的失真。
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公开(公告)号：US12068689B2
公开(公告)日：2024-08-20
申请号：US17833847
申请日：2022-06-06
发明人： Jen-Chien Hsieh , Tsung-Yu Wu
CPC分类号： H02M3/158 , H02M1/0016 , H02M1/0022 , H03L7/0891 , H03L7/099
摘要： A power converter device is provided. A feedback circuit outputs a comparison output signal. A phase-locked loop circuit provides a phase-locked signal according to a reference clock signal and an inductor voltage in a power converter circuit. An on-time circuit provides an on-time comparing signal according to the phase-locked signal, an input voltage, the inductor voltage and an output voltage of the power converter circuit. A first input terminal of an SR flip-flop receives the on-time comparing signal from the on-time circuit. A second input terminal of the SR flip-flop receives the comparison output signal from the feedback circuit. A frequency control circuit, according to changes in the input voltage and the output voltage of the power converter circuit, instantaneously adjusts the on-time of the on-time signal such that an output terminal of the SR flip-flop outputs the adjusted on-time signal to the power converter circuit.
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公开(公告)号：US12047021B2
公开(公告)日：2024-07-23
申请号：US17878151
申请日：2022-08-01
发明人： Ming-Jung Tsai
CPC分类号： H02P1/16
摘要： A motor driver having a high success rate starting mechanism is provided. A multi-segment slope pattern circuit connects a plurality of values of waveforms of a starting waveform signal to form a curve. The multi-segment slope pattern circuit determines a plurality of slopes respectively of a plurality of curve segments included in the curve according to a plurality of parameters related to a motor. The multi-segment slope pattern circuit outputs a multi-segment slope pattern signal according to the plurality of slopes of the plurality of curve segments. A startup signal generating circuit outputs a first startup waveform signal according to the multi-segment slope pattern signal. A motor controller circuit controls a motor driving circuit to start up the motor according to the first startup waveform signal.
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公开(公告)号：US20240146217A1
公开(公告)日：2024-05-02
申请号：US18179375
申请日：2023-03-07
发明人： JYUN-PING JIANG , Shih-Hai Chien
摘要： A motor driver using a motor magnetic pole reference controlling mechanism is provided. A motor position detecting circuit detects a rotor of a motor to determine a plurality of magnetic pole positions to which the rotor of the motor is switched respectively during a plurality of time intervals. A reference magnetic pole switching circuit selects one of the plurality of time intervals according to a change in rotational speed of the motor over time. The reference magnetic pole switching circuit uses the magnetic pole position to which the rotor of the motor is switched during the one of the plurality of time intervals as magnetic pole reference data. A motor driving circuit drives the motor according to the magnetic pole reference data from the reference magnetic pole switching circuit.
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公开(公告)号：US11863071B2
公开(公告)日：2024-01-02
申请号：US17670509
申请日：2022-02-14
发明人： Chien-Nan Chen , Fu-Chuan Chen
CPC分类号： H02M3/158 , H02M1/0041 , H02M1/08
摘要： A power converter having a smooth transition control mechanism is provided. An oscillator circuit outputs a clock signal. A control circuit receives the clock signal from the oscillator circuit and outputs a control signal based on the clock signal. A driver circuit outputs a high-side conduction signal and a low-side conduction signal according to the control signal. A high-side switch is turned on or off according to the high-side conduction signal from the driver circuit. A low-side switch is turned on or off according to the low-side conduction signal from the driver circuit. The oscillator circuit receives the high-side conduction signal from the driver circuit. The oscillator circuit, according to the high-side conduction signal, determines whether or not the clock signal outputted to the control circuit needs to be adjusted.
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