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    • 21. 发明授权
    • Power converting controller and light-emitting diode driving circuit
    • 电力转换控制器和发光二极管驱动电路
    • US08618748B2
    • 2013-12-31
    • US13192466
    • 2011-07-28
    • Shian-Sung ShiuChung-Che YuLi-Min LeeKe Peng
    • Shian-Sung ShiuChung-Che YuLi-Min LeeKe Peng
    • H05B37/02G05F1/00
    • H05B33/0815H05B33/0824Y02B20/341
    • A power converting controller and an LED driving circuit are provided. The power converting controller controls a converting circuit, which converts an input power source into an appropriate power source to drive a load. The power converting controller includes a feedback control unit, an open-circuit judging unit and a protection unit. The feedback control unit controls the converting circuit according to a feedback signal representing the status of the load. As the open-circuit judging unit has judged that the load is continuously in an open-circuit status for a predetermined time length, the open-circuit judging unit generates an open-circuit protection signal. The protection unit is coupled to the feedback control unit and the open-circuit judging unit so as to generate a protection signal as receiving the open-circuit protection signal and thereby the feedback control unit enters a latch status to stop controlling the converting circuit.
    • 提供电力转换控制器和LED驱动电路。 电力转换控制器控制转换电路,其将输入电源转换成适当的电源以驱动负载。 电力转换控制器包括反馈控制单元,开路判断单元和保护单元。 反馈控制单元根据表示负载状态的反馈信号控制转换电路。 由于开路判断部判断负载连续处于规定时间长度的开路状态,所以开路判断部生成开路保护信号。 保护单元耦合到反馈控制单元和开路判断单元,以便产生保护信号作为接收开路保护信号,由此反馈控制单元进入锁存状态以停止控制转换电路。
    • 22. 发明授权
    • Converting controller
    • 转换控制器
    • US08536804B2
    • 2013-09-17
    • US13304271
    • 2011-11-23
    • Chung-Che YuShian-Sung ShiuLi-Min LeeJuan-Juan Liu
    • Chung-Che YuShian-Sung ShiuLi-Min LeeJuan-Juan Liu
    • H05B37/02G05F1/46
    • H02M3/156H02M2001/0025H05B33/0815
    • 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.
    • 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。
    • 23. 发明授权
    • Driving circuit and control circuit
    • 驱动电路和控制电路
    • US08502461B2
    • 2013-08-06
    • US13115129
    • 2011-05-25
    • Shian-Sung ShiuChung-Che YuLi-Min Lee
    • Shian-Sung ShiuChung-Che YuLi-Min Lee
    • H05B37/02G05F1/00
    • H05B33/0848H05B33/0815
    • A driving circuit, comprising a power supply, a transistor unit and a feedback control circuit, is disclosed. The power supply is adaptor to provide an electric power to drive a load. The transistor unit comprises at least one load coupling end to couple to the load for adjusting an amount of current flowing through the load. The feedback control circuit controls an amount of the electric power provided by the power supply according to a voltage level of the least one load coupling end. Wherein, the feedback control circuit comprises an error amplifying circuit and a feedback control switch. The error amplifying circuit generates an error amplified signal according to the voltage level of the least one load coupling end, and the feedback control switch is coupled to an output of the error amplifying circuit and is switched between a turn-on state and a turn-off state based on a dimming signal.
    • 公开了一种包括电源,晶体管单元和反馈控制电路的驱动电路。 电源是适配器,用于提供驱动负载的电力。 晶体管单元包括至少一个耦合到负载的负载耦合端,用于调节流过负载的电流量。 反馈控制电路根据至少一个负载耦合端的电压电平来控制由电源提供的电力的量。 其中,反馈控制电路包括误差放大电路和反馈控制开关。 误差放大电路根据至少一个负载耦合端的电压电平产生误差放大信号,反馈控制开关耦合到误差放大电路的输出,并在导通状态和转向开关状态之间切换, 基于调光信号的关闭状态。
    • 24. 发明授权
    • Transistor module and transistor driving module
    • 晶体管模块和晶体管驱动模块
    • US08368433B2
    • 2013-02-05
    • US13092142
    • 2011-04-21
    • Li-Min LeeShian-Sung ShiuChung-Che YuSi-Min Wu
    • Li-Min LeeShian-Sung ShiuChung-Che YuSi-Min Wu
    • H03K3/01
    • H02H7/122
    • The present invention discloses a transistor driving module, coupling to a converting controller, to driving a high side transistor and a low side transistor connected in series, wherein one end of the high side transistor is coupled to an input voltage and one end of the low side transistor is grounded. The transistor driving module comprises a high side driving unit, a low side driving unit, a current limiting unit and an anti-short through unit. The high side driving unit generates a high side driving signal to turn the high side transistor on according to a duty cycle signal, and the low side driving unit generates a low side driving signal turn the low side transistor on according to the high side driving signal. The current limiting unit is coupled to the high side transistor and the high side driving unit, and generates a current limiting signal when a current flowing through the high side transistor higher than a current limiting value. The high side driving unit is stopped to generate the high side driving signal when receiving the current limiting value. The anti-short through unit is coupled to the high side driving unit and the low side driving unit to control the generations of the high side driving signal and the low side driving signal to have the timings of the high side driving signal and the low side driving signal non-overlapped.
    • 本发明公开了一种与转换控制器耦合以驱动串联连接的高侧晶体管和低侧晶体管的晶体管驱动模块,其中高侧晶体管的一端耦合到输入电压,低端的一端 侧晶体管接地。 晶体管驱动模块包括高侧驱动单元,低侧驱动单元,限流单元和防短路单元。 高侧驱动单元产生高侧驱动信号,以根据占空比信号使高侧晶体管导通,低边驱动单元产生低侧驱动信号,根据高侧驱动信号使低侧晶体管导通 。 电流限制单元耦合到高侧晶体管和高侧驱动单元,并且当流过高侧晶体管的电流高于电流限制值时,产生限流信号。 当接收到电流限制值时,高侧驱动单元被停止以产生高侧驱动信号。 防短路单元耦合到高侧驱动单元和低侧驱动单元,以控制高侧驱动信号和低侧驱动信号的代,以具有高侧驱动信号和低侧的定时 驾驶信号不重叠。
    • 27. 发明申请
    • DRIVING CIRCUIT AND CONTROL CIRCUIT
    • 驱动电路和控制电路
    • US20110291591A1
    • 2011-12-01
    • US13115129
    • 2011-05-25
    • Shian-Sung ShiuChung-Che YuLi-Min Lee
    • Shian-Sung ShiuChung-Che YuLi-Min Lee
    • H05B37/02H02J7/00
    • H05B33/0848H05B33/0815
    • A driving circuit, comprising a power supply, a transistor unit and a feedback control circuit, is disclosed. The power supply is adaptor to provide an electric power to drive a load. The transistor unit comprises at least one load coupling end to couple to the load for adjusting an amount of current flowing through the load. The feedback control circuit controls an amount of the electric power provided by the power supply according to a voltage level of the least one load coupling end. Wherein, the feedback control circuit comprises an error amplifying circuit and a feedback control switch. The error amplifying circuit generates an error amplified signal according to the voltage level of the least one load coupling end, and the feedback control switch is coupled to an output of the error amplifying circuit and is switched between a turn-on state and a turn-off state based on a dimming signal.
    • 公开了一种包括电源,晶体管单元和反馈控制电路的驱动电路。 电源是适配器,用于提供驱动负载的电力。 晶体管单元包括至少一个耦合到负载的负载耦合端,用于调节流过负载的电流量。 反馈控制电路根据至少一个负载耦合端的电压电平来控制由电源提供的电力的量。 其中,反馈控制电路包括误差放大电路和反馈控制开关。 误差放大电路根据至少一个负载耦合端的电压电平产生误差放大信号,反馈控制开关耦合到误差放大电路的输出,并在导通状态和转向开关状态之间切换, 基于调光信号的关闭状态。