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    • 4. 发明申请
    • BAND-GAP REFERENCE VOLTAGE GENERATION CIRCUIT
    • 带隙参考电压发生电路
    • US20110068756A1
    • 2011-03-24
    • US12635584
    • 2009-12-10
    • Seung-Hun Hong
    • Seung-Hun Hong
    • G05F1/10
    • G11C5/147G05F3/30
    • A band-gap reference voltage generation circuit and methods thereof. A band-gap reference voltage generation circuit may include a current generator configured to generate a first current and/or a second current. A band-gap reference voltage generation circuit may include a current controller including a first resistor, through which a first current may flow, a first bipolar transistor connected with a first resistor at an emitter of a first bipolar transistor and/or connected with a node at a base of a first bipolar transistor, and/or a second bipolar transistor connected with a node at a base of a second bipolar transistor. A band-gap reference voltage generation circuit may include a current controller to generate a proportional to absolute temperature current, a feedback unit to control first and second currents to be substantially equal, and a band-gap voltage output unit to generate a reference voltage in response to a PTAT current.
    • 一种带隙基准电压产生电路及其方法。 带隙基准电压产生电路可以包括被配置为产生第一电流和/或第二电流的电流发生器。 带隙基准电压产生电路可以包括电流控制器,该电流控制器包括第一电流可以流过的第一电阻器,与第一双极晶体管的发射极处的第一电阻器连接的第一双极晶体管和/ 在第一双极晶体管的基极处,和/或与第二双极晶体管的基极处的节点连接的第二双极晶体管。 带隙基准电压产生电路可以包括电流控制器以产生与绝对温度电流成比例的电流控制器,用于控制第一和第二电流基本相等的反馈单元和带隙电压输出单元,以产生参考电压 响应PTAT电流。
    • 9. 发明授权
    • Apparatus for driving light emitting diode (LED) and illumination system including the same
    • 用于驱动发光二极管(LED)的装置和包括其的照明系统
    • US09253837B1
    • 2016-02-02
    • US14707411
    • 2015-05-08
    • Seung Hun Hong
    • Seung Hun Hong
    • H05B33/08
    • H05B33/083
    • An LED driving apparatus controls a light emitting unit including first to k-th LED arrays, a rectifier for rectifying an AC signal, and first to (k−1)-th driving units respectively corresponding to the first to (k−1)-th LED arrays. Each driving unit includes an input terminal connected to a first terminal of the LED array, a sensing terminal connected to a second terminal of the LED array, an output terminal connected to a next driving unit, a transistor between the input terminal and the sensing terminal, and a sensing resistor between the sensing terminal and the output terminal. The rectified signal or voltage is applied to the first driving unit.
    • LED驱动装置控制包括第一至第K LED阵列的发光单元,用于整流AC信号的整流器,以及分别对应于第一至第(k-1)个LED阵列的第一至第(k-1)个驱动单元, LED阵列。 每个驱动单元包括连接到LED阵列的第一端子的输入端子,连接到LED阵列的第二端子的感测端子,连接到下一驱动单元的输出端子,输入端子和感测端子之间的晶体管 ,以及感测端子和输出端子之间的感测电阻。 整流的信号或电压被施加到第一驱动单元。
    • 10. 发明申请
    • Light Emitting Device Driving Apparatus and Illumination System Including the Same
    • 发光装置驱动装置及其照明系统
    • US20150351182A1
    • 2015-12-03
    • US14631202
    • 2015-02-25
    • Seung Hun HONG
    • Seung Hun HONG
    • H05B33/08
    • H05B33/083
    • Disclosed is a light emitting device driving apparatus configured to control a light emitting unit including light emitting devices or array(s) thereof connected in series. The light emitting device driving apparatus includes a rectifier configured to rectify an AC signal and supply to the light emitting unit a ripple current signal, and a sequential driving controller configured to generate a reference current, compare the reference current with a channel current from the light emitting unit, and selectively connect one of channel lines connected to respective output terminals of the light emitting devices or array(s) thereof. The sequential driving controller adjusts a level and/or value of the reference current based on the ripple current signal. The reference current is a current flowing between the first node and a ground potential.
    • 公开了一种配置为控制包括串联连接的发光器件或阵列的发光单元的发光器件驱动装置。 发光器件驱动装置包括:整流器,被配置为对AC信号进行整流并向发光单元提供纹波电流信号;以及顺序驱动控制器,被配置为产生参考电流,将参考电流与来自光的通道电流进行比较 并且选择性地连接连接到发光器件或其阵列的各个输出端子的通道线之一。 顺序驱动控制器基于纹波电流信号来调整参考电流的电平和/或值。 参考电流是在第一节点和地电位之间流动的电流。