公开(公告)号：US08446098B2

公开(公告)日：2013-05-21

申请号：US13244653

申请日：2011-09-25

申请人： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Xi Tu ,  Ying Wang

发明人： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Xi Tu ,  Ying Wang

IPC分类号： H05B41/16

CPC分类号： H05B33/0815 ,  H05B33/0827

摘要： An LED driving circuit includes a first and a second LED modules, a first and a second switching converters, an extreme voltage detecting and selecting circuit, a current balance circuit and a controller. The first switching converter transforms electric power of an input power supply into a first output voltage for lighting the first LED module. The second switching converter transforms electric power of the input power supply into a second output voltage for lighting the second LED module. The current balance circuit balances the currents flowing through the first and the second LED modules. The extreme voltage detecting and selecting circuit detects the first and the second LED modules and selects to output one of detecting results. The controller controls the transforming of the first switching converter and the second switching converter to light the first and the second LED modules in response to the outputted detecting result.

摘要翻译： LED驱动电路包括第一和第二LED模块，第一和第二开关转换器，极值电压检测和选择电路，电流平衡电路和控制器。 第一开关转换器将输入电源的电力变换为第一输出电压以点亮第一LED模块。 第二开关转换器将输入电源的电力转换成用于照亮第二LED模块的第二输出电压。 电流平衡电路平衡流经第一和第二LED模块的电流。 极端电压检测和选择电路检测第一和第二LED模块，并选择输出检测结果之一。 控制器控制第一开关转换器和第二开关转换器的变换，以响应于输出的检测结果点亮第一和第二LED模块。

公开(公告)号：US20130121037A1

公开(公告)日：2013-05-16

申请号：US13447285

申请日：2012-04-16

申请人： Ke Peng ,  Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu

发明人： Ke Peng ,  Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu

IPC分类号： H02M3/335

CPC分类号： H02H7/10 ,  H02M1/36 ,  H02M3/335 ,  H02M3/3376 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

摘要： A current detecting circuit detects a resonant current in a primary side of a resonant converting circuit to generate a current detecting signal. An output detecting circuit generates a feedback signal according to the output voltage. A resonant controller generates a clock signal and adjusts an operating frequency of the clock signal in response to the feedback signal for modulating the output voltage of the resonant circuit. The resonant controller includes a resonance deviation protection unit which detects the current detecting signal according to a phase of the clock signal to determine whether the resonant circuit enters a region of zero current switching or not. When the resonant circuit enters the region of zero current switching, the resonant controller executes a corresponding protection process in response to that the resonant controller operates in a starting mode or a normal operating mode.

摘要翻译： 电流检测电路检测谐振转换电路的初级侧的谐振电流以产生电流检测信号。 输出检测电路根据输出电压产生反馈信号。 谐振控制器响应于用于调制谐振电路的输出电压的反馈信号而产生时钟信号并调整时钟信号的工作频率。 谐振控制器包括谐振偏差保护单元，其根据时钟信号的相位检测电流检测信号，以确定谐振电路是否进入零电流切换的区域。 当谐振电路进入零电流切换区域时，谐振控制器响应于谐振控制器在启动模式或正常工作模式下运行而执行相应的保护处理。

公开(公告)号：US20130121036A1

公开(公告)日：2013-05-16

申请号：US13412636

申请日：2012-03-06

申请人： Ke Peng ,  Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu

发明人： Ke Peng ,  Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu

IPC分类号： H02M3/335

CPC分类号： H02M3/3376 ,  H02M1/32 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491 ,  Y02P80/112

摘要： The resonant converting circuit comprises a resonant circuit, a current detecting circuit and the resonant controller. The resonant controller controls a power conversion of the resonant circuit for converting an input voltage into an output voltage and the resonant controller comprises an over current judgment unit and an over current protection unit. The over current judgment unit determines whether the resonant current is higher than an over current value according to a current detecting signal generated by the current detecting circuit. The over current protection unit generates a protection signal in response to a determined result of the over current judgment unit and an indication signal indicative of an operating state of the resonant controller. The resonant controller executes a corresponding protecting process in response to the protection signal.

摘要翻译： 谐振转换电路包括谐振电路，电流检测电路和谐振控制器。 谐振控制器控制用于将输入电压转换为输出电压的谐振电路的功率转换，并且谐振控制器包括过电流判断单元和过电流保护单元。 过电流判断单元根据由电流检测电路产生的电流检测信号来判定谐振电流是否高于过电流值。 过电流保护单元响应于过电流判断单元的确定结果和表示谐振控制器的工作状态的指示信号产生保护信号。 谐振控制器响应于保护信号执行相应的保护处理。

公开(公告)号：US20120268085A1

公开(公告)日：2012-10-25

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

IPC分类号： G05F1/10

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。

公开(公告)号：US20110248675A1

公开(公告)日：2011-10-13

申请号：US12906142

申请日：2010-10-18

申请人： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Ke Peng

发明人： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Ke Peng

IPC分类号： H02J7/00

CPC分类号： H01M10/44 ,  H01M10/4207 ,  H02J7/0016

摘要： In the related art, the measurement error due to the internal resistance of the battery is not considered in the battery balance method, such that the battery balance is not accurate, or the battery balance process is frequently started and stopped. In exemplary embodiments of the invention, detecting battery voltage and balancing battery voltage are performed in different time, such that the difference of charge current/discharge current among the batteries due to the battery voltage balance process do not affect the battery voltage detecting.

摘要翻译： 在现有技术中，在电池平衡方法中没有考虑由于电池的内部电阻引起的测量误差，使得电池平衡不准确，或者电池平衡过程频繁地开始和停止。 在本发明的示例性实施例中，在不同的时间内执行检测电池电压和平衡电池电压，使得由于电池电压平衡处理而导致的电池之间的充电电流/放电电流的差异不影响电池电压检测。

公开(公告)号：US20110215780A1

公开(公告)日：2011-09-08

申请号：US12906137

申请日：2010-10-18

申请人： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Ji-Ming Chen

发明人： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Ji-Ming Chen

IPC分类号： G05F1/10

CPC分类号： G05F1/10

摘要： A de-glitch switching converting circuit and a controller thereof are provided. In the embodiment of the invention, the circuit can filter noises with high frequency by way of time judgment, so as to avoid the erroneous operation of the controller affecting the stability of the output voltage or the output current. Compared with the method of using low-pass filters with large capacitors to filter noises, highly increasing the cost of the circuit is unnecessary in the embodiment of the invention. The circuit in the embodiment of the invention also has the capability for filtering noises with high amplitudes. In addition, by setting suitable parameters, the circuit in the embodiment of the invention can also avoid affecting the transient response of the circuit while filtering noises.

摘要翻译： 提供去毛刺切换转换电路及其控制器。 在本发明的实施例中，电路可以通过时间判断过滤高频噪声，以避免控制器误操作，影响输出电压或输出电流的稳定性。 与使用具有大电容器的低通滤波器对噪声进行滤波的方法相比，在本发明的实施例中不需要大量增加电路的成本。 本发明实施例中的电路还具有以高幅度对噪声进行滤波的能力。 此外，通过设定适当的参数，本发明的实施例中的电路也可以避免在过滤噪声时影响电路的瞬态响应。

公开(公告)号：US20070115057A1

公开(公告)日：2007-05-24

申请号：US11308019

申请日：2006-03-03

申请人： Chung-Che Yu ,  Shian-Sung Shiu ,  Li-Min Lee

发明人： Chung-Che Yu ,  Shian-Sung Shiu ,  Li-Min Lee

IPC分类号： H03F3/45

CPC分类号： H03F3/45197 ,  H03F3/45632 ,  H03F2203/45101 ,  H03F2203/45352 ,  H03F2203/45641 ,  H03F2203/45646 ,  H03F2203/45681 ,  H03F2203/45726 ,  H03G1/0088

摘要： A variable gain device having higher linearity and wider gain range is provided. The variable gain device includes a transduction unit for generating an output current, a control unit for adjusting the current gain of the gain amplifying unit according to a gain control signal, a gain amplifying unit receiving the current signal and generating a gain adjustable current according to the current gain of the control unit, an output DC level control unit controlling the DC level of the output signal of the variable gain device, and an output unit generating an output signal according to the signals output by the output DC level control unit and the gain amplifying unit.

摘要翻译： 提供具有更高线性度和更宽增益范围的可变增益器件。 可变增益装置包括用于产生输出电流的转换单元，用于根据增益控制信号调整增益放大单元的电流增益的控制单元，接收当前信号的增益放大单元，并根据 控制单元的当前增益，控制可变增益装置的输出信号的直流电平的输出直流电平控制单元和根据由输出直流电平控制单元输出的信号产生输出信号的输出单元， 增益放大单元。

公开(公告)号：US09024611B2

公开(公告)日：2015-05-05

申请号：US13585811

申请日：2012-08-14

申请人： Li-Min Lee ,  Quan Gan ,  Shian-Sung Shiu ,  Chung-Che Yu

发明人： Li-Min Lee ,  Quan Gan ,  Shian-Sung Shiu ,  Chung-Che Yu

IPC分类号： G05F1/10 ,  H02M3/156 ,  H02M1/32 ,  H01L21/00 ,  H02H3/10 ,  H02H7/122 ,  H02M3/158

CPC分类号： H02M3/156 ,  H01L21/00 ,  H02H3/10 ,  H02H7/1222 ,  H02H7/1227 ,  H02M1/32 ,  H02M3/158

摘要： A controller with a multi-function pin, adapted to control a converting circuit according to a control signal for converting an input voltage into an output voltage, is disclosed. The controller has the multi-function pin, an enable unit, an over-current detecting unit and a logic control unit. The enable unit is coupled to the multi-function pin for receiving an enable signal and activates the controller in response to the enable signal. The over-current detecting is coupled to the multi-function pin and determines an over-current value according to an over-current set resistance coupled between the multi-function pin and a voltage source. The over-current detecting unit generates an over-current protection signal according to the over-current value and a current flowing through the converting circuit. The logic control unit determines whether executing an over-current protection according to the over-current protection signal.

摘要翻译： 公开了一种具有多功能引脚的控制器，其适于根据用于将输入电压转换为输出电压的控制信号来控制转换电路。 控制器具有多功能引脚，使能单元，过流检测单元和逻辑控制单元。 使能单元耦合到多功能引脚，用于接收使能信号，并响应于使能信号激活控制器。 过电流检测耦合到多功能引脚，并根据耦合在多功能引脚和电压源之间的过电流设定电阻确定过电流值。 过流检测单元根据过电流值和流过转换电路的电流产生过电流保护信号。 逻辑控制单元根据过电流保护信号判定是否执行过电流保护。

公开(公告)号：US08558483B2

公开(公告)日：2013-10-15

申请号：US13118557

申请日：2011-05-30

申请人： Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Xi Tu

发明人： Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Xi Tu

IPC分类号： H05B37/02

CPC分类号： H05B33/0824 ,  H05B33/0815

摘要： A non-linear load driving circuit and a controller for controlling a conversion circuit to drive a non-linear load are provided. The controller includes a feedback unit, a pulse width control unit, and an overshoot reduction unit. The feedback unit generates a feedback signal according to a current feedback signal that represents a load current flowing through the non-linear load. The pulse width control unit generates a control signal according to the feedback signal to control a power output of the conversion circuit. The overshoot reduction unit generates an overshoot reduction signal when the load current changes from being smaller than to being greater than a predetermined value according to the current feedback signal. The pulse width control unit receives the overshoot reduction signal and reduces the duty cycle of the control signal accordingly. Thereby, stability of feedback control is improved and damage to circuit is prevented.

摘要翻译： 提供了非线性负载驱动电路和用于控制转换电路以驱动非线性负载的控制器。 控制器包括反馈单元，脉冲宽度控制单元和过冲减少单元。 反馈单元根据表示流过非线性负载的负载电流的电流反馈信号产生反馈信号。 脉冲宽度控制单元根据反馈信号产生控制信号，以控制转换电路的功率输出。 当负载电流根据电流反馈信号从小于大于预定值变化时，过冲减少单元产生过冲减小信号。 脉冲宽度控制单元接收过冲减小信号并相应地减小控制信号的占空比。 由此，能够提高反馈控制的稳定性，防止对电路的损坏。

公开(公告)号：US08552768B2

公开(公告)日：2013-10-08

申请号：US13244636

申请日：2011-09-25

申请人： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Si-Min Wu

发明人： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Si-Min Wu

IPC分类号： H03B1/00 ,  H03K3/00

CPC分类号： H02M1/38 ,  H02M3/156

摘要： A synchronous driving circuit in the arts may cause a short through pheromone when a duty cycle of a duty cycle control signal is too short. The present invention sets a delay time with a suitable period when the duty cycle of the duty cycle control signal is too short to avoid the short through phenomenon.

摘要翻译： 当占空比控制信号的占空比太短时，本技术中的同步驱动电路可能导致短路信息素。 本发明在占空比控制信号的占空比太短而避免短路现象时，以合适的周期设定延迟时间。