公开(公告)号：US08823280B2

公开(公告)日：2014-09-02

申请号：US13567101

申请日：2012-08-06

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

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

IPC: G05F1/00 ,  H05B37/02

CPC classification number: H05B33/0827 ,  Y02B20/341

Abstract: An LED driving circuit comprises a converting circuit, a current regulator, a converting controller and a low dimming protection blocking circuit, is disclosed. The converting circuit is adapted to perform a power conversion to provide a driving voltage for lighting an LED module. The current regulator is coupled to the LED module for regulating a current flowing through the LED module. The current regulator conducts and stops conducting the current flowing through the LED module according to a dimming signal, and executes a protection process when the LED module operates abnormal. The converting controller controls the power conversion of the converting circuit according to a voltage level of at least one connection node of the current regulator and the LED module. The low dimming protection blocking circuit stops the protection process of the current regulator when the driving voltage is lower than a predetermined value.

Abstract translation: LED驱动电路包括转换电路，电流调节器，转换控制器和低调光保护阻断电路。 转换电路适于执行功率转换以提供用于点亮LED模块的驱动电压。 电流调节器耦合到LED模块，用于调节流过LED模块的电流。 电流调节器根据调光信号进行并停止导通LED模块的电流，并在LED模块运行异常时执行保护过程。 转换控制器根据电流调节器和LED模块的至少一个连接节点的电压电平来控制转换电路的功率转换。 当驱动电压低于预定值时，低调光保护阻断电路停止电流调节器的保护处理。

公开(公告)号：US08687332B2

公开(公告)日：2014-04-01

申请号：US13350423

申请日：2012-01-13

Applicant: Chung-Che Yu

Inventor： Chung-Che Yu

IPC: H02H7/00

CPC classification number: H05B33/0887 ,  H03K17/0822 ,  Y02B20/341

Abstract: The present invention provides a transistor circuit with protecting function. The transistor circuit includes a transistor, a voltage detecting unit, a current detecting unit, a temperature detecting unit, and a protecting unit. The voltage detecting unit detects a voltage drop of the transistor and generates an over-voltage protection signal. The current detecting signal detects a current flowing through the transistor and generates an over-current protection signal. The temperature detecting unit detects a temperature of the transistor circuit and generates an over-temperature protection signal. The protecting unit is coupled to the control terminal to control a state of the transistor according to the over-voltage protection signal, the over-current protection signal, and the over-temperature protection signal to reduce the voltage difference between the control terminal and the second terminal, such that the voltage drop of the transistor is decreased or decreased to zero.

Abstract translation: 本发明提供一种具有保护功能的晶体管电路。 晶体管电路包括晶体管，电压检测单元，电流检测单元，温度检测单元和保护单元。 电压检测单元检测晶体管的电压降，并产生过电压保护信号。 电流检测信号检测流过晶体管的电流，并产生过电流保护信号。 温度检测单元检测晶体管电路的温度并产生过温保护信号。 保护单元耦合到控制端子，以根据过电压保护信号，过电流保护信号和过温保护信号控制晶体管的状态，以降低控制端和控制端之间的电压差 第二端子，使得晶体管的电压降降低到零。

公开(公告)号：US08664893B2

公开(公告)日：2014-03-04

申请号：US13218405

申请日：2011-08-25

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

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

IPC: H05B37/02

CPC classification number: H05B33/0818 ,  H05B33/0824 ,  H05B33/0827 ,  Y02B20/346

Abstract: The present invention provides a feedback control circuit and an LED driving circuit for using the same, wherein the feedback control circuit receives a dimming signal. The dimming signal is changed between a first state and a second state. When being in the first state, the feedback control circuit controls a converter circuit to drive the LED module for lighting stably. When being in the second state, the feedback control circuit controls the converter circuit to maintain the power conversion of the converter circuit to have an output voltage outputted by the converter circuit maintained at a level close to a lighting threshold voltage of the LED module.

Abstract translation: 本发明提供一种反馈控制电路和使用该反馈控制电路的LED驱动电路，其中反馈控制电路接收调光信号。 调光信号在第一状态和第二状态之间改变。 当处于第一状态时，反馈控制电路控制转换器电路以驱动LED模块以稳定点亮。 当处于第二状态时，反馈控制电路控制转换器电路以维持转换器电路的功率转换，使转换器电路输出的输出电压保持在接近LED模块的点亮阈值电压的水平。

公开(公告)号：US20130271006A1

公开(公告)日：2013-10-17

申请号：US13567101

申请日：2012-08-06

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

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

IPC: H05B37/02

CPC classification number: H05B33/0827 ,  Y02B20/341

Abstract: An LED driving circuit comprises a converting circuit, a current regulator, a converting controller and a low dimming protection blocking circuit, is disclosed. The converting circuit is adapted to perform a power conversion to provide a driving voltage for lighting an LED module. The current regulator is coupled to the LED module for regulating a current flowing through the LED module. The current regulator conducts and stops conducting the current flowing through the LED module according to a dimming signal, and executes a protection process when the LED module operates abnormal. The converting controller controls the power conversion of the converting circuit according to a voltage level of at least one connection node of the current regulator and the LED module. The low dimming protection blocking circuit stops the protection process of the current regulator when the driving voltage is lower than a predetermined value.

Abstract translation: LED驱动电路包括转换电路，电流调节器，转换控制器和低调光保护阻断电路。 转换电路适于执行功率转换以提供用于点亮LED模块的驱动电压。 电流调节器耦合到LED模块，用于调节流过LED模块的电流。 电流调节器根据调光信号进行并停止导通LED模块的电流，并在LED模块运行异常时执行保护过程。 转换控制器根据电流调节器和LED模块的至少一个连接节点的电压电平来控制转换电路的功率转换。 当驱动电压低于预定值时，低调光保护阻断电路停止电流调节器的保护处理。

公开(公告)号：US08446098B2

公开(公告)日：2013-05-21

申请号：US13244653

申请日：2011-09-25

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

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

IPC: H05B41/16

CPC classification number: H05B33/0815 ,  H05B33/0827

Abstract: 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.

Abstract translation: 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

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

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

IPC: H02M3/335

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

Abstract: 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.

Abstract translation: 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

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

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

IPC: H02M3/335

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

Abstract: 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.

Abstract translation: 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

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

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

IPC: G05F1/10

CPC classification number: H02M3/158 ,  H02M2001/0025

Abstract: 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.

Abstract translation: 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：US20120146534A1

公开(公告)日：2012-06-14

申请号：US13396609

申请日：2012-02-15

Applicant: Chung-Che Yu ,  Shih-Chung Huang ,  Chien-Pang Hung ,  Chih-Shun Lee

Inventor： Chung-Che Yu ,  Shih-Chung Huang ,  Chien-Pang Hung ,  Chih-Shun Lee

IPC: H05B41/36 ,  H02M7/44

CPC classification number: H02M7/53871 ,  H05B41/2825 ,  H05B41/2828 ,  Y02B20/186 ,  Y02B70/1441

Abstract: A fluorescent lamp device includes a frequency generator for generating a pulse signal, a driver circuit coupled to said frequency generator for generating at least one driving signal according to said pulse signal, a half bridge power switch unit coupled to the driver circuit, a resonant tank coupled to the half bridge power switch unit, and a fluorescent lamp coupled to the resonant tank.

Abstract translation: 荧光灯装置包括用于产生脉冲信号的频率发生器，耦合到所述频率发生器的驱动电路，用于根据所述脉冲信号产生至少一个驱动信号;耦合到驱动电路的半桥功率开关单元，谐振槽 耦合到半桥功率开关单元，以及耦合到谐振槽的荧光灯。

公开(公告)号：US20110248675A1

公开(公告)日：2011-10-13

申请号：US12906142

申请日：2010-10-18

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

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

IPC: H02J7/00

CPC classification number: H01M10/44 ,  H01M10/4207 ,  H02J7/0016

Abstract: 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.

Abstract translation: 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。