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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：US09232605B2
公开(公告)日：2016-01-05
申请号：US13360077
申请日：2012-01-27
申请人： Shian-Sung Shiu , Chia-Ming Chan
发明人： Shian-Sung Shiu , Chia-Ming Chan
CPC分类号： H05B33/089 , Y02B20/341
摘要： A load driving circuit comprises a converting circuit, a converting controller, a load driving modulator, and a charge spike protection circuit. The converting circuit is adapted to be coupled to an output power source and supplies a driving power source to drive a load. The converting circuit has an output capacitance coupled to an output end thereof. The converting controller controls an amount of the driving power source responsive to a current or a voltage of the load. The load driving modulator and the load, connected in series, are coupled to the output end and so the load driving modulator adjusts an electronic state of the load. The charge spike protection circuit is coupled to the output capacitance and at least one connecting node of the load and the load driving modulator to provide a unidirectional charge release path to the output capacitance.
摘要翻译： 负载驱动电路包括转换电路，转换控制器，负载驱动调制器和充电尖峰保护电路。 转换电路适于耦合到输出电源并提供驱动电源以驱动负载。 转换电路具有耦合到其输出端的输出电容。 转换控制器响应于负载的电流或电压来控制驱动电源的量。 串联连接的负载驱动调制器和负载耦合到输出端，因此负载驱动调制器调整负载的电子状态。 电荷尖峰保护电路耦合到输出电容和负载和负载驱动调制器的至少一个连接节点，以向输出电容提供单向电荷释放路径。
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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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9.发明授权公开(公告)号：US09000743B2
公开(公告)日：2015-04-07
申请号：US13645419
申请日：2012-10-04
发明人： Ming-Chiang Ting
摘要： A multi-channel constant voltage and constant current converting controller is provided. It comprises a multi-channel balance circuit and an error amplifier circuit. The multi-channel balance circuit receives a first voltage signal and load current detecting signals and outputs a second voltage signal and amplifying load current detecting signals. The error amplifier circuit receives the second voltage signal, the amplifying load current detecting signals and a reference voltage and outputs an error amplifying signal. The error amplifier circuit outs the error amplifying signal according to the reference voltage and the maximum value between the second voltage signal and amplifying load current detecting signals.
摘要翻译： 提供多通道恒压和恒流转换控制器。 它包括多通道平衡电路和误差放大器电路。 多通道平衡电路接收第一电压信号和负载电流检测信号，并输出第二电压信号并放大负载电流检测信号。 误差放大器电路接收第二电压信号，放大负载电流检测信号和参考电压，并输出误差放大信号。 误差放大器根据参考电压和第二电压信号与放大负载电流检测信号之间的最大值输出误差放大信号。
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公开(公告)号：US08907646B2
公开(公告)日：2014-12-09
申请号：US13236613
申请日：2011-09-19
申请人： Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu , Quan Gan
发明人： Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu , Quan Gan
CPC分类号： H02M3/158 , H02M2001/0025
摘要： A power converting circuit and a feedback control circuit for the power converting circuit are disclosed. The feedback control circuit comprises a feedback controller and a level controlling unit. The feedback controller generates a feedback control signal according to a reference voltage signal and a feedback signal. The level controlling unit receives one of the reference voltage signal and the feedback signal and modules a level of the received signal from a first level to a second level with time according to a level adjusting signal.
摘要翻译： 公开了一种功率转换电路和用于功率转换电路的反馈控制电路。 反馈控制电路包括反馈控制器和电平控制单元。 反馈控制器根据参考电压信号和反馈信号产生反馈控制信号。 电平控制单元接收参考电压信号和反馈信号中的一个，并且根据电平调整信号随时间将接收信号的电平从第一电平到第二电平模拟。
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