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1. 发明申请

US20070170874A1 LIGHT EMITTING DIODE DRIVE APPARATUS 失效
标题翻译：发光二极管驱动装置
公开(公告)号：US20070170874A1
公开(公告)日：2007-07-26
申请号：US11623363
申请日：2007-01-16
申请人： Takashi KUNIMATSU , Ryutaro Arakawa , Yoshiaki Hachiya , Minoru Fukui
发明人： Takashi KUNIMATSU , Ryutaro Arakawa , Yoshiaki Hachiya , Minoru Fukui
IPC分类号： H05B41/36
CPC分类号： H05B33/0815 , H05B33/0809
摘要： There is provided a light emitting diode drive apparatus which decreases a conducted emission. The light emitting diode drive apparatus includes a light emitting diode to which a voltage is applied from a voltage source, a choke coil connected in series to the light emitting diode, a rectifier diode connected in parallel to the light emitting diode and the choke coil to supply a back electromotive force generated in the choke coil to the light emitting diode, and a switching drive circuit including a switching element and a control circuit block. The switching element determines whether a current is applied or not applied to the light emitting diode. The control circuit block controls on/off timing of the switching element to control the current flowing into the light emitting diode. The choke coil is connected between the light emitting diode and the switching element.
摘要翻译：提供了减少传导发射的发光二极管驱动装置。发光二极管驱动装置包括从电压源施加电压的发光二极管，与发光二极管串联连接的扼流线圈，并联连接到发光二极管和扼流线圈的整流二极管，将在扼流线圈中产生的反电动势提供给发光二极管，以及包括开关元件和控制电路块的开关驱动电路。开关元件确定电流是施加还是不施加到发光二极管。控制电路块控制开关元件的开/关定时以控制流入发光二极管的电流。扼流线圈连接在发光二极管和开关元件之间。

2. 发明申请

US20090302816A1 SWITCHING POWER SUPPLY AND SEMICONDUCTOR DEVICE USED FOR THE SAME 有权
标题翻译：切换电源和半导体器件
公开(公告)号：US20090302816A1
公开(公告)日：2009-12-10
申请号：US12472726
申请日：2009-05-27
申请人： Takashi KUNIMATSU
发明人： Takashi KUNIMATSU
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M1/36 , H02M2001/0032 , Y02B70/16
摘要： According to the present invention, it is possible to prevent an overcurrent from passing through a switching element 1 during overcurrent protection and reduce power consumption during standby while detecting an output voltage immediately after power-on and achieving soft start control without being restricted by time.
摘要翻译：根据本发明，可以防止在过电流保护期间过电流通过开关元件1，并且能够在不受时间限制的情况下检测上电后立即输出电压并实现软启动控制的同时降低待机期间的功耗。

3. 发明申请

US20080203533A1 SEMICONDUCTOR DEVICE 有权
标题翻译：半导体器件
公开(公告)号：US20080203533A1
公开(公告)日：2008-08-28
申请号：US11956715
申请日：2007-12-14
申请人： Saichiro KANEKO , Takashi KUNIMATSU
发明人： Saichiro KANEKO , Takashi KUNIMATSU
IPC分类号： H01L27/00
CPC分类号： H01L29/7393 , H03K17/0828 , H03K17/14 , H03K17/567 , H03K2217/0018
摘要： A semiconductor device includes a principal IGBT controllable in accordance with a gate voltage applied to a gate electrode thereof, a current detecting IGBT connected to the principal IGBT in parallel and a current detecting part including a detecting resistor capable of detecting a current passing through the current detecting IGBT. The base region of the current detecting IGBT and the emitter region of the principal IGBT are electrically connected to each other, and the emitter region of the current detecting IGBT and the emitter region of the principal IGBT are electrically connected to each other through the detecting resistor.
摘要翻译：半导体器件包括可根据施加到其栅电极的栅极电压控制的主IGBT，并联到主IGBT的电流检测IGBT，以及电流检测部，其包括检测电流，该电流检测电阻能够检测通过电流的电流检测IGBT。电流检测IGBT的基极区域和主要IGBT的发射极区域彼此电连接，并且电流检测IGBT的发射极区域和主要IGBT的发射极区域通过检测电阻器彼此电连接。

4. 发明申请

US20110057634A1 SWITCHING POWER SUPPLY DEVICE AND SEMICONDUCTOR DEVICE USED FOR THE SAME 有权
标题翻译：切换电源装置和使用该电源装置的半导体装置
公开(公告)号：US20110057634A1
公开(公告)日：2011-03-10
申请号：US12871104
申请日：2010-08-30
申请人： Takashi KUNIMATSU
发明人： Takashi KUNIMATSU
IPC分类号： G05F1/00
CPC分类号： H02M3/156
摘要： In a switching power supply device in which an operation reference voltage of a control circuit has an electric potential identical to that of a connection point between a switching element and a coil that is an energy conversion circuit, an output voltage detection circuit includes: a rectification circuit which converts an output voltage into a voltage signal rectified relative to the operation reference voltage terminal of the control circuit; and a voltage-to-current converter which is connected between an input terminal of a current detection circuit and the rectification circuit, and which converts the rectified voltage signal into a current signal. The current detection circuit is a sampling type which detects a current by sampling the current signal applied to the input terminal of the current detection circuit.
摘要翻译：在开关电源装置中，控制电路的运算基准电压具有与作为能量转换电路的开关元件和线圈之间的连接点的电位相同的电位，输出电压检测电路包括：整流电路，其将输出电压转换成相对于控制电路的运行基准电压端整流的电压信号; 以及连接在电流检测电路的输入端子与整流电路之间并将整流电压信号转换为电流信号的电压 - 电流转换器。电流检测电路是通过对施加到电流检测电路的输入端子的电流信号进行采样来检测电流的采样类型。

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