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1. 发明授权

US09252766B2 Load detecting circuits and the method thereof 有权
标题翻译：负载检测电路及其方法
公开(公告)号：US09252766B2
公开(公告)日：2016-02-02
申请号：US13538843
申请日：2012-06-29
申请人： Yuancheng Ren , En Li , Naixing Kuang , Yike Li
发明人： Yuancheng Ren , En Li , Naixing Kuang , Yike Li
IPC分类号： G01R19/00 , H03K17/30 , H03K17/20 , H02M1/00 , H02M1/32 , H04B1/00 , G01R31/40
CPC分类号： H03K17/30 , G01R31/40 , G05B2219/00 , H02M1/00 , H02M1/32 , H03K17/20 , H03K2017/307 , H04B1/00
摘要： A no-load detecting circuit and the method thereof are disclosed. The no-load detecting circuit may be applied in switching mode power supplies or other circuits. The no-load detecting circuit comprises: a variable resistance circuit coupled in series to a load of the switching mode power supply; and a first comparison circuit coupled to the variable resistance circuit to receive the voltage across the variable resistance circuit, wherein based on the comparison of the voltage across the variable resistance circuit and a first threshold, the first comparison circuit generates a no-load detecting signal indicative of the load status; wherein the equivalent resistance of the variable resistance circuit varies based on the varying of the load of the switching mode power supply.
摘要翻译：公开了一种空载检测电路及其方法。空载检测电路可以应用在开关模式电源或其他电路中。空载检测电路包括：串联耦合到开关模式电源的负载的可变电阻电路; 以及耦合到所述可变电阻电路以接收所述可变电阻电路两端的电压的第一比较电路，其中，基于所述可变电阻电路两端的电压与第一阈值的比较，所述第一比较电路产生无负载检测信号指示负载状态; 其中可变电阻电路的等效电阻根据开关模式电源的负载变化而变化。

2. 发明申请

US20130082742A1 LOAD DETECTING CIRCUITS AND THE METHOD THEREOF 有权
标题翻译：负载检测电路及其方法
公开(公告)号：US20130082742A1
公开(公告)日：2013-04-04
申请号：US13538843
申请日：2012-06-29
申请人： Yuancheng Ren , En Li , Naixing Kuang , Yike Li
发明人： Yuancheng Ren , Yifang Xi , En Li , Naixing Kuang , Yike Li
IPC分类号： H03K17/30 , H03K17/20
CPC分类号： H03K17/30 , G01R31/40 , G05B2219/00 , H02M1/00 , H02M1/32 , H03K17/20 , H03K2017/307 , H04B1/00
摘要： A no-load detecting circuit and the method thereof are disclosed. The no-load detecting circuit may be applied in switching mode power supplies or other circuits. The no-load detecting circuit comprises: a variable resistance circuit coupled in series to a load of the switching mode power supply; and a first comparison circuit coupled to the variable resistance circuit to receive the voltage across the variable resistance circuit, wherein based on the comparison of the voltage across the variable resistance circuit and a first threshold, the first comparison circuit generates a no-load detecting signal indicative of the load status; wherein the equivalent resistance of the variable resistance circuit varies based on the varying of the load of the switching mode power supply.
摘要翻译：公开了一种空载检测电路及其方法。空载检测电路可以应用在开关模式电源或其他电路中。空载检测电路包括：串联耦合到开关模式电源的负载的可变电阻电路; 以及耦合到所述可变电阻电路以接收所述可变电阻电路两端的电压的第一比较电路，其中，基于所述可变电阻电路两端的电压与第一阈值的比较，所述第一比较电路产生无负载检测信号指示负载状态; 其中可变电阻电路的等效电阻根据开关模式电源的负载变化而变化。

3. 发明授权

US08687387B2 Quasi-resonant controlled switching regulator and the method thereof 有权
标题翻译：准谐振控制开关调节器及其方法
公开(公告)号：US08687387B2
公开(公告)日：2014-04-01
申请号：US13218361
申请日：2011-08-25
申请人： Yike Li , Rui Wang , En Li
发明人： Yike Li , Rui Wang , En Li
IPC分类号： H02M3/335
CPC分类号： H02M3/156 , H02M2001/0058 , Y02B70/1425 , Y02B70/1491
摘要： A frequency limitation method used in a quasi-resonant controlled switching regulator is disclosed. The switching frequency is limited by setting a minimum time period, such as a minimum switching period or a minimum OFF time period. The minimum time period is varying according to the difference between the minimum time period of the previous cycle and an offset value, so as to eliminate the audible noise caused by the frequency hopping when the minimum OFF time period is close to the valley of a quasi-resonant signal.
摘要翻译：公开了一种在准谐振控制开关调节器中使用的频率限制方法。通过设置最小时间段（例如最小切换周期或最小关闭时间段）来限制开关频率。最小时间段根据前一周期的最小时间间隔和偏移值之间的差异而变化，以消除当最小关闭时间段接近准准的谷谷时跳频引起的可听见的噪声共振信号。

4. 发明申请

US20120049822A1 QUASI-RESONANT CONTROLLED SWITCHING REGULATOR AND THE METHOD THEREOF 有权
标题翻译：有限共振控制开关稳压器及其方法
公开(公告)号：US20120049822A1
公开(公告)日：2012-03-01
申请号：US13218361
申请日：2011-08-25
申请人： Yike Li , Rui Wang , En Li
发明人： Yike Li , Rui Wang , En Li
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0058 , Y02B70/1425 , Y02B70/1491
摘要： A frequency limitation method used in a quasi-resonant controlled switching regulator is disclosed. The switching frequency is limited by setting a minimum time period, such as a minimum switching period or a minimum OFF time period. The minimum time period is varying according to the difference between the minimum time period of the previous cycle and an offset value, so as to eliminate the audible noise caused by the frequency hopping when the minimum OFF time period is close to the valley of a quasi-resonant signal.
摘要翻译：公开了一种在准谐振控制开关调节器中使用的频率限制方法。通过设置最小时间段（例如最小切换周期或最小关闭时间段）来限制开关频率。最小时间段根据前一周期的最小时间间隔和偏移值之间的差异而变化，以消除当最小关闭时间段接近准准的谷谷时跳频引起的可听见的噪声共振信号。

5. 发明授权

US08502486B2 DC brushless motor system and the method thereof 有权
标题翻译：直流无刷电机系统及其方法
公开(公告)号：US08502486B2
公开(公告)日：2013-08-06
申请号：US13231867
申请日：2011-09-13
申请人： Yike Li , Jian Zhao , Antonius Bakker
发明人： Yike Li , Jian Zhao , Antonius Bakker
IPC分类号： H02P6/00
CPC分类号： H02P6/15 , H02P6/26
摘要： A DC brushless motor system is disclosed. When a rotor of the DC brushless motor is close to an aligned position, there will be current spike in the coil and voltage spike in an input capacitor. By decreasing the peak current limit of the current in the coil when the rotor is close to the aligned position, the current spike and the voltage spike are reduced.
摘要翻译：公开了一种直流无刷电动机系统。当直流无刷电动机的转子接近对准位置时，线圈中将有电流尖峰和输入电容器中的电压尖峰。当转子接近对准位置时，通过减小线圈中电流的峰值电流极限，减小电流尖峰和电压尖峰。

6. 发明申请

US20120275199A1 SWITCH-MODE POWER SUPPLY CONTROLLER AND ASSOCIATED METHOD 有权
标题翻译：开关电源控制器及相关方法
公开(公告)号：US20120275199A1
公开(公告)日：2012-11-01
申请号：US13457857
申请日：2012-04-27
申请人： Yike Li , Xiangyong Xu
发明人： Yike Li , Xiangyong Xu
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： One embodiment of the present invention discloses a switch-mode power supply controller and associated method. In an embodiment, the controller comprises an on-time controller, an off-time controller, a switch control signal generator, and a jittering signal generator, wherein the jittering signal generator couples jitter into the on-time or the off-time of a primary switch of the power supply. Therefore the EMI performance may be improved.
摘要翻译：本发明的一个实施例公开了一种开关电源控制器及其相关方法。在一个实施例中，控制器包括接通时间控制器，关断时间控制器，开关控制信号发生器和抖动信号发生器，其中抖动信号发生器将抖动耦合到导通时间或关断时间主开关电源。因此，可以提高EMI性能。

7. 发明申请

US20120274247A1 DRIVE AND CONTROL CIRCUIT FOR MOTOR SYSTEM AND THE METHOD THEREOF 有权
标题翻译：电机系统的驱动和控制电路及其方法
公开(公告)号：US20120274247A1
公开(公告)日：2012-11-01
申请号：US13457845
申请日：2012-04-27
申请人： Jian Zhao , Yike Li , Yangwei Yu
发明人： Jian Zhao , Yike Li , Yangwei Yu
IPC分类号： H02P6/14
CPC分类号： H02P6/085 , H02P6/20
摘要： A drive and control circuit for motor system and the method thereof are disclosed. The motor system could be applied in a cooling device, wherein the motor system comprises a rotor, a coil and a bridge circuit. The drive and control circuit comprises a control unit, a state detecting circuit, a load determining circuit, and a startup setting circuit. The startup setting circuit makes the motor run with the maximum torque, thus to make the motor system start up easily and quickly. The load determining circuit detects the load of the motor system, thus to generate a load determining signal to determine the speed of the motor system. The control unit could be realized with few components so as to save the costs.
摘要翻译：公开了一种用于电动机系统的驱动和控制电路及其方法。马达系统可以应用在冷却装置中，其中马达系统包括转子，线圈和桥接电路。驱动和控制电路包括控制单元，状态检测电路，负载确定电路和启动设置电路。启动设置电路使电机以最大扭矩运行，从而使电机系统容易快速启动。负载确定电路检测电动机系统的负载，从而产生负载确定信号以确定电动机系统的速度。控制单元可以用很少的部件实现，从而节省成本。

8. 发明申请

US20120112725A1 Circuit and Method for Voltage Regulator Output Voltage Trimming 有权
标题翻译：电压调节器输出电压调整电路和方法
公开(公告)号：US20120112725A1
公开(公告)日：2012-05-10
申请号：US13282744
申请日：2011-10-27
申请人： Yike Li , Jiangyun Zhou
发明人： Yike Li , Jiangyun Zhou
IPC分类号： G05F1/648
CPC分类号： G05F1/575 , H01C17/22
摘要： The present disclosure discloses a voltage regulator comprising a trimming circuit. The present disclosure also discloses a method for trimming an output voltage of a voltage regulator. In one embodiment the voltage regulator may comprise a power conversion module, a feedback and trimming module and a control module. The voltage regulator may be able to provide an output voltage that could be regulated to a plurality of output values, the feedback and trimming module may be able to trim the plurality of output values to their desired values successively and independently.
摘要翻译：本公开公开了一种包括修整电路的电压调节器。本公开还公开了一种用于修整电压调节器的输出电压的方法。在一个实施例中，电压调节器可以包括功率转换模块，反馈和微调模块以及控制模块。电压调节器可以能够提供可被调节到多个输出值的输出电压，反馈和修整模块可以能够连续和独立地将多个输出值修剪到其期望值。

9. 发明授权

US08836310B2 Switch-mode power supply controller and associated method 有权
标题翻译：开关电源控制器及相关方法
公开(公告)号：US08836310B2
公开(公告)日：2014-09-16
申请号：US13457857
申请日：2012-04-27
申请人： Yike Li , Xiangyong Xu
发明人： Yike Li , Xiangyong Xu
IPC分类号： H02M3/156 , H02M3/335
CPC分类号： H02M3/33507
摘要： A controller having an on-time controller, an off-time controller, a switch control signal generator, and a jittering signal generator, wherein the jittering signal generator couples jitter into the on-time or the off-time of a primary switch of the power supply. Therefore the EMI performance may be improved.
摘要翻译：具有导通时间控制器，截止时间控制器，开关控制信号发生器和抖动信号发生器的控制器，其中抖动信号发生器将抖动耦合到主开关的导通时间或关断时间电源。因此，可以提高EMI性能。

10. 发明授权

US08803719B2 Sample and hold circuit with toggle control and method thereof 有权
标题翻译：采样和保持电路与切换控制及其方法
公开(公告)号：US08803719B2
公开(公告)日：2014-08-12
申请号：US13538940
申请日：2012-06-29
申请人： Yike Li , Xiaoyu Xi , Fei Wang , Zhengxing Li
发明人： Yike Li , Xiaoyu Xi , Fei Wang , Zhengxing Li
IPC分类号： H03M1/66
CPC分类号： H03K5/1532
摘要： A sample and hold circuit and the method thereof are disclosed. The sample and hold circuit may be applied in voltage regulators or other circuits. The sample and hold circuit comprises: an input terminal configured to receive an input signal; an output terminal configured to provide an output signal; a control circuit configured to receive the input signal and the output signal, and wherein based on the input signal and the output signal, the control circuit generates a digital signal, and wherein the digital signal increases when the output signal is lower than the input signal, and maintains when the output signal is larger than or equal to the input signal; a digital-to-analog converter (DAC) configured to convert the digital signal to the output signal.
摘要翻译：公开了采样保持电路及其方法。采样保持电路可以应用在电压调节器或其他电路中。采样和保持电路包括：输入端，被配置为接收输入信号; 输出端子，被配置为提供输出信号; 控制电路，被配置为接收所述输入信号和所述输出信号，并且其中基于所述输入信号和所述输出信号，所述控制电路产生数字信号，并且其中当所述输出信号低于所述输入信号时，所述数字信号增加并且当输出信号大于或等于输入信号时保持; 配置为将数字信号转换为输出信号的数模转换器（DAC）。

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