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1. 发明授权

US09843253B2 Voltage converter and voltage converting method 有权
公开(公告)号：US09843253B2
公开(公告)日：2017-12-12
申请号：US14483948
申请日：2014-09-11
申请人： DELTA ELECTRONICS, INC.
发明人： Hsien-Feng Hung , Yi-Lan Yang , Chung-Ping Ku
IPC分类号： H02M7/217 , H02M1/14 , H02M1/00 , H02M1/08 , H02M7/219
CPC分类号： H02M1/14 , H02M1/081 , H02M1/082 , H02M7/217 , H02M7/2173 , H02M7/219 , H02M2001/0003 , H02M2001/0025
摘要： A voltage converter includes a voltage conversion circuit, a pulse width modulation (PWM) signal generating module, a feedback controlling module, and a subtractor. The voltage conversion circuit is configured to convert an input voltage to an output voltage according to a PWM signal. The PWM signal generating module is configured to generate the PWM signal according to a control signal. The feedback controlling module is configured to generate the control signal according to a feedback signal. The subtractor is configured to subtract a first reference voltage by the output voltage, to generate the feedback signal. The phase of an AC component of the first reference voltage is substantially opposite to the phase of the input voltage.

2. 发明申请

US20140376288A1 APPARATUS AND METHOD FOR CONTROLLING MODULE SWITCHING OF POWER CONVERTING SYSTEM 有权
标题翻译：控制电力转换系统模块切换的装置及方法
公开(公告)号：US20140376288A1
公开(公告)日：2014-12-25
申请号：US14364494
申请日：2012-12-12
申请人： HYOSUNG CORPORATION
发明人： June-Sung Kim , Jong-Yun Choi
IPC分类号： H02M1/08 , H02M1/088
CPC分类号： H02M1/081 , H02M1/082 , H02M1/0845 , H02M1/088 , H02M7/483 , H02M2001/007 , H02M2007/4835
摘要： A technology is disclosed for controlling switching of power converters included in a power converting system. Phase angles are allocated to a plurality of sub-units corresponding to the power converters, and the respective sub-units create local switching carriers based on the allocated phase angles. The sub-units compare a reference AC voltage with the local switching carriers, and switch the power converters according to the result of the comparison.
摘要翻译：公开了一种用于控制包括在电力转换系统中的电力转换器的切换的技术。相位角被分配给对应于功率转换器的多个子单元，并且各个子单元基于分配的相位角创建本地交换载波。子单元将参考交流电压与本地交换载波进行比较，并根据比较结果切换功率转换器。

3. 发明申请

US20130342179A1 METHOD FOR GENERATING PWM SIGNALS AND A PULSE WIDTH MODULATION POWER CONVERTER 有权
标题翻译：用于产生PWM信号和脉宽调制功率转换器的方法
公开(公告)号：US20130342179A1
公开(公告)日：2013-12-26
申请号：US13884082
申请日：2011-11-09
申请人： Frank Trautmann , Armin Stingl
发明人： Frank Trautmann , Armin Stingl
IPC分类号： H03K3/017
CPC分类号： H03K3/017 , H02M1/082 , H02M3/158 , H02M3/335 , H02M2001/0019
摘要： A method and an apparatus for generating PWM signals is provided. Upon detection of a load transient, a new PWM period is started if the load transient occurs during the off-time of a PWM signal and exceeds a specific magnitude.
摘要翻译：提供了一种用于产生PWM信号的方法和装置。在检测到负载瞬变时，如果在PWM信号的关断时间期间发生负载瞬变并且超过特定的幅度，则开始新的PWM周期。

4. 发明授权

US3562625A Apparatus for controlling the mean value of current supplied by an alternating current source to an electric apparatus 失效
标题翻译：用于控制通过电流源将电流提供给电器的平均值的装置
公开(公告)号：US3562625A
公开(公告)日：1971-02-09
申请号：US3562625D
申请日：1967-10-11
申请人： AUTOMATISME CIE GLE
发明人： OBRENAN JEAN VAN DEN BROEK D
IPC分类号： G06F7/68 , H02M1/08 , H02M7/155 , H02M7/162 , H02P13/16
CPC分类号： G06F7/68 , H02M1/082 , H02M1/083 , H02M7/1555 , H02M7/1557 , H02M7/1626
摘要： Device for regulating the mean value of current supplied by an AC current source to an electrical apparatus, dependent on data supplied by a computer, comprising a cycle counter having N binary flip-flops providing N binary signal combinations of a series of 2N pulses and a control arrangement responsive to the computer for applying one of 2N combinations of said N binary signals in control of the current supplied to said electrical apparatus.

5. 发明授权

US3504204A Device to regulate current from numerical signals 失效
标题翻译：用于规范数字信号的设备
公开(公告)号：US3504204A
公开(公告)日：1970-03-31
申请号：US54540066
申请日：1966-04-26
申请人： AUTOMATISME CIE GLE
发明人： CARRIVE FRANCOIS
IPC分类号： G06F7/68 , H02M1/08 , H02M7/155 , H02M7/162 , H03K19/08
CPC分类号： G06F7/68 , H02M1/082 , H02M1/083 , H02M7/1555 , H02M7/1557 , H02M7/1626

6. 发明授权

US09966947B2 Gate driving circuit for insulated gate-type power semiconductor element 有权
公开(公告)号：US09966947B2
公开(公告)日：2018-05-08
申请号：US15320658
申请日：2014-07-03
申请人： Mitsubishi Electric Corporation
发明人： Kazuhiro Otsu , Junichiro Ishikawa
IPC分类号： H02M7/48 , H03K17/687 , H02M1/08 , H02M1/084 , H03K17/06 , H01L29/08 , H01L29/06 , H02M7/162
CPC分类号： H03K17/6877 , H01L29/0653 , H01L29/0847 , H02M1/082 , H02M1/0845 , H02M7/1626 , H02M7/48 , H03K17/063 , H03K17/162
摘要： A gate driving circuit for an insulated gate-type power semiconductor element includes an Nch MOSFET which turns on the insulated gate-type power semiconductor element, a Pch MOSFET which turns off the insulated gate-type power semiconductor element, a control circuit which turns on the Nch MOSFET by applying a positive voltage to the gate electrode of the Nch MOSFET, and which turns on the Pch MOSFET by applying a negative voltage to the gate electrode of the Pch MOSFET, and a power supply which applies a negative voltage to the drain electrode of the Pch MOSFET and to a negative-side electrode of the control circuit, which applies a positive voltage to the drain electrode of the Nch MOSFET, and which applies to a positive-side electrode of the control circuit a positive voltage whose absolute value is larger than absolute value of the positive voltage applied to the drain electrode of the Nch MOSFET.

7. 发明授权

US09829513B2 Line voltage detection circuit 有权
公开(公告)号：US09829513B2
公开(公告)日：2017-11-28
申请号：US14548832
申请日：2014-11-20
申请人： Marvell World Trade LTD.
发明人： Jinho Choi , Hao Peng , Wanfeng Zhang , Tuyen Doan
IPC分类号： G01R19/00 , H02M3/335 , H05B33/08 , G01R17/02 , H02M1/08 , H02M1/00
CPC分类号： G01R19/0084 , G01R17/02 , H02M1/082 , H02M3/33523 , H02M2001/0022 , H05B33/0854
摘要： A first filter outputs a first signal in response to receiving an input signal. The first signal has a first state in response to the input signal reaching a first threshold voltage on a leading edge of the input signal, and a second state in response to the input signal reaching the first threshold voltage on a trailing edge of the input signal. A second filter outputs a second signal in response to receiving the input signal. The second signal has the first state in response to the input signal reaching a second threshold voltage on the leading edge of the input signal, and the second state in response to the input signal reaching the second threshold voltage on the trailing edge of the input signal. A detection circuit determines, based on times when the first and second thresholds are reached, whether the input signal is received from a triac.

8. 发明授权

US08896288B2 TRIAC dimmer detection 有权
标题翻译： TRIAC调光器检测
公开(公告)号：US08896288B2
公开(公告)日：2014-11-25
申请号：US13398150
申请日：2012-02-16
申请人： Jinho Choi , Hao Peng , Wanfeng Zhang , Tuyen Doan
发明人： Jinho Choi , Hao Peng , Wanfeng Zhang , Tuyen Doan
IPC分类号： G01D1/14 , H05B33/08 , H02M3/335 , H02M1/08 , H02M1/00
CPC分类号： G01R19/0084 , G01R17/02 , H02M1/082 , H02M3/33523 , H02M2001/0022 , H05B33/0854
摘要： Methods, circuits, and systems for determining the presence of a chopped input signal are disclosed. A digital signal generator can produce multiple digital signals when an alternating current (AC) signal input reaches multiple threshold voltages. The times at which the threshold voltages are reached can be determined by looking at the times at which the digital signals go high and low. The differences between the times at which the digital signals go high and low are used to determine if the AC signal input is a leading or trailing edge chopped signal. The AC input signal is a leading edge chopped signal when the difference between the times at which the digital signals go high is less than a predetermined time threshold, and is a trailing edge chopped signal when the difference between the times at which the digital signals go low is less than a predetermined time threshold.
摘要翻译：公开了用于确定斩波输入信号的存在的方法，电路和系统。当交流（AC）信号输入达到多个阈值电压时，数字信号发生器可以产生多个数字信号。达到阈值电压的时间可以通过查看数字信号变为高电平和低电平的时间来确定。使用数字信号变为高电平和低电平的时间之间的差异来确定AC信号输入是前导或后沿斩波信号。当数字信号变高的时间之间的差小于预定时间阈值时，AC输入信号是前沿斩波信号，并且当数字信号到达时间之间的差异时是后沿斩波信号低于预定时间阈值。

9. 发明申请

US20070290645A1 METHOD, SYSTEM, AND APPARATUS FOR CONTROLLING AN ELECTRIC MOTOR 有权
标题翻译：用于控制电动机的方法，系统和装置
公开(公告)号：US20070290645A1
公开(公告)日：2007-12-20
申请号：US11755627
申请日：2007-05-30
申请人： George Boyadjieff , John Hurst
发明人： George Boyadjieff , John Hurst
IPC分类号： H02K23/00
CPC分类号： H02M7/1555 , H02J3/1892 , H02M1/082 , H02M1/4208 , H02P23/26 , H02P31/00 , Y02B70/126
摘要： The present invention provides systems and methods for power factor control of a motor. A phase detector uses a line voltage of a power supply and a motor terminal voltage of a motor. The output of the phase detector is synchronized to a zero crossing of the motor current of the motor and a zero crossing of the line voltage. A digital microprocessor connected between the output of the phase detector and a rectifier driver senses a first time at which a phase of the motor voltage is crossing zero volts and a second time at which a phase of the motor current is crossing zero current. The digital microprocessor calculates the difference in time between the first and second times and uses the difference in time to calculate a phase lag of the motor. The digital microprocessor uses the phase lag to calculate a firing time of a rectifier to command power efficiently to the motor.
摘要翻译：本发明提供了一种用于电机的功率因数控制的系统和方法。相位检测器使用电源的线路电压和电动机的电动机端子电压。相位检测器的输出与电动机的电动机电流的过零点和线路电压的过零点同步。连接在相位检测器的输出端和整流器驱动器之间的数字微处理器检测电动机电压的相位与零电压相交的第一次，以及电动机电流的相位与零电流相交的第二时间。数字微处理器计算第一次和第二次之间的时间差，并使用时间差来计算电动机的相位滞后。数字微处理器使用相位滞后来计算整流器的点火时间以有效地向电动机指示功率。

10. 发明授权

US06960904B2 Switching power supply controller and switching power supply 失效
标题翻译：开关电源控制器和开关电源
公开(公告)号：US06960904B2
公开(公告)日：2005-11-01
申请号：US10801836
申请日：2004-03-17
申请人： Ken Matsuura , Takeshi Uematsu , Hiroshi Kawasaki , Takakazu Imai , Koichiro Miura
发明人： Ken Matsuura , Takeshi Uematsu , Hiroshi Kawasaki , Takakazu Imai , Koichiro Miura
IPC分类号： H02M1/08 , G05F1/44
CPC分类号： H02M1/082
摘要： An adder 11 outputs a signal VS indicating a value of (Vr−Vo), and a multiplier 12 outputs a control signal GS indicating a value of G(Vr−Vo) on the basis of the signal VS. An adder 13 outputs a signal HS on the basis of the control signal GS and a signal FS outputted from an operation circuit 30, and a PWM signal generating circuit 20 generates a PWM signal KS on the basis of the signal HS and a ramp signal RS outputted from a ramp signal circuit 15, and outputs this signal KS to a switching power supply. A counter 14 counts an on time of the PWM signal KS and retains a count value at a time of receiving a sample signal SMP. The operation circuit 30 has a high-pass filter 31 and an integrator 32, performs an operation based on a signal DS indicating the count value outputted from the counter 14, and outputs the signal FS after the operation.
摘要翻译：加法器11输出表示（Vr-Vo）的值的信号VS，乘法器12基于信号VS输出表示G（Vr-Vo）的值的控制信号GS。加法器13基于控制信号GS输出信号HS和从运算电路30输出的信号FS，PWM信号生成电路20根据信号HS和斜坡信号RS生成PWM信号KS 从斜坡信号电路15输出，并将该信号KS输出到开关电源。计数器14对PWM信号KS的导通时间进行计数，并且在接收采样信号SMP时保持计数值。运算电路30具有高通滤波器31和积分器32，根据从计数器14输出的计数值的信号DS进行运算，并在运算后输出信号FS。

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