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公开(公告)号：US09780671B2
公开(公告)日：2017-10-03
申请号：US15259070
申请日：2016-09-08
发明人： Chia-Ming Chan , Desi Pan , Shian-Sung Shiu , Li-Min Lee
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/158 , H02M3/33561 , H02M2001/0009 , H02M2001/009
摘要： A power conversion apparatus including a power converter, a first output port, a second output port, a load detection circuit and an output selection circuit is provided. The power converter generates a first and a second output voltages having different voltage specification. The first and the second output ports respectively provide the received output voltages to a back end. The load detection circuit is coupled with the power converter and the second output port and detects a load requirement of a load connected to the second output port to generate a load detection signal. The power converter generates a first switch control signal according to the load detection signal to control the output selection circuit, such that the output selection circuit provides one of the first and the second output voltages in response to the first switch control signal.
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公开(公告)号：US20170093292A1
公开(公告)日：2017-03-30
申请号：US15259070
申请日：2016-09-08
发明人： Chia-Ming Chan , Desi Pan , Shian-Sung Shiu , Li-Min Lee
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/158 , H02M3/33561 , H02M2001/0009 , H02M2001/009
摘要： A power conversion apparatus including a power converter, a first output port, a second output port, a load detection circuit and an output selection circuit is provided. The power converter generates a first and a second output voltages having different voltage specification. The first and the second output ports respectively provide the received output voltages to a back end. The load detection circuit is coupled with the power converter and the second output port and detects a load requirement of a load connected to the second output port to generate a load detection signal. The power converter generates a first switch control signal according to the load detection signal to control the output selection circuit, such that the output selection circuit provides one of the first and the second output voltages in response to the first switch control signal.
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公开(公告)号：US09407149B2
公开(公告)日：2016-08-02
申请号：US14266038
申请日：2014-04-30
发明人： Li-Min Lee , Chao Shao , Zhong-Wei Liu
CPC分类号： H02M3/1588 , H02M2001/0022 , Y02B70/1466
摘要： A buck converting controller, adapted to control a DC-DC buck converting circuit to convert an input voltage into an output voltage, is disclosed. The buck converting controller comprises a feedback control circuit, an off-time determination circuit and a load control circuit. The feedback control circuit turns on and off a high-side transistor and a low-side transistor of the DC-DC buck converting circuit in response to a feedback signal indicative of the output voltage. The off-time determination circuit determines a preset off-time period according to the input voltage and the output voltage and generates an off notice signal according to the preset off-time period. The load control circuit is coupled to the DC-DC buck converting circuit and determines whether to release an electronic energy stored in the DC-DC buck converting circuit according to the off notice signal.
摘要翻译： 公开了一种用于控制DC-DC降压转换电路以将输入电压转换为输出电压的降压转换控制器。 降压转换控制器包括反馈控制电路，关断时间确定电路和负载控制电路。 响应于表示输出电压的反馈信号，反馈控制电路接通和断开DC-DC降压转换电路的高侧晶体管和低侧晶体管。 关断时间确定电路根据输入电压和输出电压确定预设的关闭时间段，并根据预设的关闭时间周期生成关闭通知信号。 负载控制电路耦合到DC-DC降压转换电路，并根据关闭信号确定是否释放存储在DC-DC降压转换电路中的电子能量。
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公开(公告)号：US09407147B2
公开(公告)日：2016-08-02
申请号：US13845117
申请日：2013-03-18
发明人： Li-Min Lee , Quan Gan , Shian-Sung Shiu , Chao Shao
CPC分类号： H02M3/1584
摘要： A multiphase converter controller with current balance, configured to control a plural converting circuit to commonly supply an output voltage, is disclosed. The multiphase converter controller comprises a feedback circuit, a fixed on-time circuit, and a multiphase logical circuit. The feedback circuit detects the output voltage to generate a feedback control signal. The fixed on-time circuit generates an on-time signal according to the feedback control signal, and a pulse width of the on-time signal is determined according to a single timer. The multiphase logical circuit chooses a corresponding converting circuit, generates a phase signal according to a sequence of the feedback control signal and controls the corresponding converting circuit according to the on-time signal. Wherein, the fixed on-time circuit determines a correction value according to currents of the plural converting circuit and the phase signal, so as to correct the pulse width of the on-time signal.
摘要翻译： 公开了一种具有电流平衡的多相转换器控制器，其被配置为控制多个转换电路以共同地提供输出电压。 多相转换器控制器包括反馈电路，固定导通时间电路和多相逻辑电路。 反馈电路检测输出电压以产生反馈控制信号。 固定导通时间电路根据反馈控制信号产生接通时间信号，并且根据单个定时器确定接通时间信号的脉冲宽度。 多相逻辑电路选择相应的转换电路，根据反馈控制信号的顺序产生相位信号，并根据接通时间信号控制相应的转换电路。 其中，固定导通时间电路根据多个转换电路的电流和相位信号确定校正值，以校正接通时间信号的脉冲宽度。
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公开(公告)号：US09313841B2
公开(公告)日：2016-04-12
申请号：US13672350
申请日：2012-11-08
发明人： Chung-Che Yu , Shian-Sung Shiu , Chia-Ming Chan , Li-Min Lee
CPC分类号： H05B33/0815 , H05B33/0827 , Y02B20/347
摘要： The present invention provides an LED current balance apparatus, which utilities capacitances coupled to secondary windings of a transformer to store voltage differences between LED strings. Thereby, the driving voltages applied to LED strings are respectively modulated to make the LED strings flowing through a same driving current. A current regulating apparatus is coupled to all LED strings to stabilize total current of the LED strings at a predetermined current.
摘要翻译： 本发明提供一种LED电流平衡装置，其利用耦合到变压器的次级绕组的电容来存储LED串之间的电压差。 因此，施加到LED串的驱动电压分别被调制以使LED串流过相同的驱动电流。 电流调节装置耦合到所有LED串，以稳定LED串在预定电流下的总电流。
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6.发明授权DC to DC buck converting controller with programmable on-time period unit 有权DC到DC降压转换控制器，具有可编程的导通时间单位公开(公告)号：US09293989B2
公开(公告)日：2016-03-22
申请号：US14109964
申请日：2013-12-18
发明人： Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu , Chao Shao , Quan Gan
CPC分类号： H02M3/156 , H02M3/158 , H02M3/1588 , H02M2001/0022 , H02M2001/0025 , Y02B70/1466
摘要： A programmable on-time period of a DC to DC buck converting controller is adjusted according to a level of a preset output voltage or a reference signal. Therefore, the DC to DC buck converting controller of the present invention is suitable for any applications with different requests of output voltages or different operating mode.
摘要翻译： DC-DC降压转换控制器的可编程导通时间段根据预设输出电压或参考信号的电平进行调整。 因此，本发明的DC-DC降压转换控制器适用于具有不同输出电压或不同工作模式要求的任何应用。
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公开(公告)号：US09107271B2
公开(公告)日：2015-08-11
申请号：US14158873
申请日：2014-01-20
发明人： Shian-Sung Shiu , Chia-Ming Chan , Ying Wang
CPC分类号： H05B33/089 , H05B33/0827 , Y02B20/341
摘要： A LED (Light-Emitting Diode) driving circuit including at least one light-emitting unit and a protection detecting circuit, is provided. Each light-emitting unit includes an LED string coupled to a driving voltage, a current regulator and a transistor. The current regulator is coupled to a corresponding LED string and controls a current flowing therethrough. The transistor is coupled between the LED string and the current regulator. The protection detecting circuit generates a clamping reference level signal to a control terminal of the at least one transistor and is coupled to a connection node of the at least one transistor and the at least one LED string. When a voltage of any connection node is higher than a preset protection value, the protection detecting circuit decreases the clamping reference value to reduce or cut off the current of the at least one LED string.
摘要翻译： 提供了包括至少一个发光单元和保护检测电路的LED（发光二极管）驱动电路。 每个发光单元包括耦合到驱动电压的LED串，电流调节器和晶体管。 电流调节器耦合到相应的LED串并且控制流过其中的电流。 晶体管耦合在LED串和电流调节器之间。 保护检测电路产生钳位参考电平信号到至少一个晶体管的控制端，并且耦合到至少一个晶体管和至少一个LED串的连接节点。 当任何连接节点的电压高于预设保护值时，保护检测电路减小钳位参考值以减少或切断至少一个LED串的电流。
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公开(公告)号：US20140197808A1
公开(公告)日：2014-07-17
申请号：US13894394
申请日：2013-05-14
发明人： Li-Min LEE , Chao SHAO , Shian-Sung SHIU , Quan GAN
IPC分类号： H02M3/156
CPC分类号： H02M3/158 , H02M3/156 , H02M2003/1566
摘要： A DC-DC converter, adapted to control a converting circuit to convert an input voltage into an output voltage, is disclosed. The converting circuit comprises a switch module and an LC filter, the switch module is coupled to the input voltage, and the LC filter is coupled to the switch module and provides the output voltage. The DC-DC converter comprises a system control circuit, a driver circuit, and an output voltage adjusting circuit. The system control circuit generates a switch control signal according to a reference voltage and a state of the LC filter. The driver circuit controls the switch module according to the switch control signal for adjusting the output voltage in response to the reference voltage. The output voltage adjusting circuit determines whether adjusting the output voltage toward a predetermined adjusting voltage according to an adjusting reference voltage and a detecting voltage indicative of the output voltage.
摘要翻译： 公开了一种用于控制转换电路以将输入电压转换为输出电压的DC-DC转换器。 转换电路包括开关模块和LC滤波器，开关模块耦合到输入电压，LC滤波器耦合到开关模块并提供输出电压。 DC-DC转换器包括系统控制电路，驱动电路和输出电压调节电路。 系统控制电路根据参考电压和LC滤波器的状态产生开关控制信号。 驱动器电路根据开关控制信号控制开关模块，用于响应于参考电压来调节输出电压。 输出电压调节电路根据调整参考电压和表示输出电压的检测电压来确定是否朝向预定调整电压调节输出电压。
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公开(公告)号：US20130119895A1
公开(公告)日：2013-05-16
申请号：US13737291
申请日：2013-01-09
发明人： SHIAN-SUNG SHIU , JUANJUAN LIU
CPC分类号： H02H3/06 , H05B33/089 , H05B37/02
摘要： A driving controller for driving a load is disclosed. The driving circuit includes a driving power supply and the driving controller. The driving power supply provides a first power source to the load. The controller is coupled to a second power source to receive an electric power for operating. The controller controls the amount of the electric power to the load when operating in a first mode and stops the driving power supply from providing the electric power to the load when operating in a second mode. The controller operates exclusively in the first mode before the driving power supply provides the first power source to the load.
摘要翻译： 公开了一种用于驱动负载的驱动控制器。 驱动电路包括驱动电源和驱动控制器。 驱动电源为负载提供第一个电源。 控制器耦合到第二电源以接收用于操作的电力。 当在第一模式下操作时，控制器控制负载的电力的量，并且在第二模式下操作时停止驱动电源向负载提供电力。 在驱动电源向负载提供第一电源之前，控制器仅在第一模式下操作。
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公开(公告)号：US20220085663A1
公开(公告)日：2022-03-17
申请号：US17232417
申请日：2021-04-16
发明人： CHEN-HSUNG WANG
摘要： A metal object detecting device for a wireless charging device is provided and includes an object detection coil, a relay and an object detector circuit. The wireless charging device has a transmitter coil, a first digital signal processor and a receiver coil. The object detection coil is disposed above the transmitter coil. The relay is connected to the object detection coil. The object detector circuit is connected to the relay and the first digital signal processor. The transmitter coil transmits a power signal to the receiver coil within a power supplying time. The relay is turned on during an object detection time such that an oscillation signal is generated from the object detection coil and the object detector circuit as a basis for determining whether or not a metal object is close to the wireless charging device.
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