公开(公告)号：US09288853B2

公开(公告)日：2016-03-15

申请号：US13354343

申请日：2012-01-20

Applicant: Chung-Che Yu

Inventor： Chung-Che Yu

IPC: H05B37/00 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0848

Abstract: The present invention discloses an LED driving circuit and controller, capable of maintaining an average value of a current flowing through an LED module at a predetermined current value. The LED driving circuit and controller compensates influences of any factors deviating the average value of the current flowing through the LED module by modulating a period of constant on time or constant off time, or by modulating the determining value(s) of current peak value and/or current valley value according to a difference between an actual average value and the preset current value.

Abstract translation: 本发明公开了一种LED驱动电路和控制器，其能够将流过LED模块的电流的平均值保持在预定电流值。 LED驱动电路和控制器通过调制恒定导通时间或恒定关闭时间的周期，或通过调制电流峰值的确定值来补偿影响流过LED模块的电流的平均值的任何因素的影响， /或当前谷值根据实际平均值和预置电流值之间的差值。

公开(公告)号：US09024611B2

公开(公告)日：2015-05-05

申请号：US13585811

申请日：2012-08-14

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

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

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

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

Abstract: 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.

Abstract translation: 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

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

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

IPC: H05B37/02

CPC classification number: H05B33/0824 ,  H05B33/0815

Abstract: 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.

Abstract translation: 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

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

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

IPC: H03B1/00 ,  H03K3/00

CPC classification number: H02M1/38 ,  H02M3/156

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08487599B2

公开(公告)日：2013-07-16

申请号：US12906137

申请日：2010-10-18

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

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

IPC: G05F1/40

CPC classification number: G05F1/10

Abstract: 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.

Abstract translation: 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：US08358084B2

公开(公告)日：2013-01-22

申请号：US12826699

申请日：2010-06-30

Applicant: Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Hai-Po Li

Inventor： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Hai-Po Li

IPC: G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC classification number: H05B33/0887 ,  H05B33/0827 ,  H05B33/0866 ,  Y02B20/341

Abstract: An LED current control circuit including a current adjusting unit, a detecting unit, and a current control unit is provided. The current adjusting unit has a current control end coupled to an LED string for determining an amount of current flowing through the LED string according to a current control signal. The detecting unit detects the current control end and determines whether to generate a protecting signal according to a protecting voltage value. The current control unit generates the current control signal to control the amount of current flowing through the LED string of and determines whether to stop the current flowing through the LED string according to the protecting signal.

Abstract translation: 提供了包括电流调节单元，检测单元和电流控制单元的LED电流控制电路。 电流调节单元具有耦合到LED串的电流控制端，用于根据电流控制信号确定流过LED串的电流量。 检测单元检测电流控制端，并根据保护电压值确定是否产生保护信号。 电流控制单元产生电流控制信号以控制流过LED串的电流量，并根据保护信号确定是否停止流经LED串的电流。

公开(公告)号：US20120319754A1

公开(公告)日：2012-12-20

申请号：US13244636

申请日：2011-09-25

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

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

IPC: H03K3/356

CPC classification number: H02M1/38 ,  H02M3/156

Abstract: 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.

Abstract translation: 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引起短路信息素。 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。

公开(公告)号：US08299755B2

公开(公告)日：2012-10-30

申请号：US12484259

申请日：2009-06-15

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

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

IPC: H02J7/00

CPC classification number: H02J7/0018

Abstract: A battery charging controlling apparatus for balancing voltages of the charged batteries is provided. The battery charging controlling includes a battery reference voltage generating unit, a voltage balancing unit, and a balance judging unit. The battery charging controlling apparatus determines whether a battery voltage difference between any two adjacent battery units of a battery module is too large or not by using a reference voltage provided from the battery reference voltage generating unit. The battery charging controlling apparatus further detects the voltage of the battery module and a charging current thereto to determine a suitable time for balancing the charged batteries. Then, the voltage balancing unit controlled by the balance judging unit allows the charging current of the lower-voltage battery unit greater than the charging current of the higher-voltage battery, unit so as to lower the battery voltage difference of the battery units.

Abstract translation: 提供一种用于平衡已充电电池的电压的电池充电控制装置。 电池充电控制包括电池参考电压产生单元，电压平衡单元和平衡判断单元。 电池充电控制装置通过使用从电池参考电压产生单元提供的参考电压来确定电池模块的任何两个相邻电池单元之间的电池电压差是否过大。 电池充电控制装置还检测电池模块的电压和充电电流，以确定用于平衡充电电池的合适时间。 然后，由平衡判定单元控制的电压平衡单元使得低电压电池单元的充电电流大于高电压电池单元的充电电流，以降低电池单元的电池电压差。

公开(公告)号：US08288993B2

公开(公告)日：2012-10-16

申请号：US12453284

申请日：2009-05-06

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

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

IPC: H02J7/00

CPC classification number: H02J7/0016

Abstract: The present invention discloses a battery charging controller for balancing the charged batteries. The battery charging controller comprises a battery reference voltage generator, a voltage balancing module and a balance judging circuit. The battery charging controller determines which one has the lower voltage between battery units of a battery module according to reference voltages generated by the battery reference voltage generator. The voltage balancing module controlled by the balance judging circuit allows the charging current of the lower-voltage battery larger than the charging current of the higher-voltage battery in such that the final voltages of the battery units are substantially equaled when they are completely saturated.

Abstract translation: 本发明公开了一种用于平衡充电的电池的电池充电控制器。 电池充电控制器包括电池参考电压发生器，电压平衡模块和平衡判定电路。 电池充电控制器根据由电池参考电压发生器产生的参考电压来确定哪个电池在电池模块的电池单元之间具有较低的电压。 由平衡判断电路控制的电压平衡模块允许低电压电池的充电电流大于高电压电池的充电电流，使得当电池单元完全饱和时，电池单元的最终电压基本相等。

公开(公告)号：US20120229050A1

公开(公告)日：2012-09-13

申请号：US13304271

申请日：2011-11-23

Applicant: Chung-Che YU ,  Shian-Sung SHIU ,  Li-Min LEE ,  Juan-Juan LIU

Inventor： Chung-Che YU ,  Shian-Sung SHIU ,  Li-Min LEE ,  Juan-Juan LIU

IPC: H05B37/02 ,  G05F1/46

CPC classification number: H02M3/156 ,  H02M2001/0025 ,  H05B33/0815

Abstract: A converting controller is provided and comprises a first comparing unit, a second comparing unit, a duty cycle operating unit and a reference voltage supplying unit. The first comparing unit receives a detecting signal representing a state of the load and a first reference signal, and generates a first comparing signal accordingly. The duty cycle operating unit controls power conversion of the converting circuit according to the first comparing signal. The second comparing unit receives the detecting signal and a second reference signal, and generates a second comparing signal accordingly. The reference voltage supplying unit supplies the first reference signal and adjusts a level of the first reference signal in response to the second comparing signal.

Abstract translation: 提供转换控制器，包括第一比较单元，第二比较单元，占空比操作单元和参考电压提供单元。 第一比较单元接收表示负载状态的检测信号和第一参考信号，并相应地产生第一比较信号。 占空比操作单元根据第一比较信号控制转换电路的功率转换。 第二比较单元接收检测信号和第二参考信号，并相应地产生第二比较信号。 参考电压提供单元响应于第二比较信号提供第一参考信号并调节第一参考信号的电平。