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1. 发明专利

JP2007265336A Reference power voltage circuit 有权
标题翻译：参考电源电路
公开(公告)号：JP2007265336A
公开(公告)日：2007-10-11
申请号：JP2006092988
申请日：2006-03-30
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： YATANI YOSHIAKI , ARAKAWA RYUTARO , KUNIMATSU TAKASHI , FUKUI MINORU
IPC分类号： G05F3/24
CPC分类号： G05F3/24
摘要： PROBLEM TO BE SOLVED: To provide a reference power voltage circuit which is safe even when a small and high voltage reference power voltage is used.
SOLUTION: The reference power voltage circuit has a VCC detection means 9, a comparator 10 and a preoperation malfunction prevention circuit 7 for an indefinite period. The VCC detection means 9 detects voltage of a VCC terminal 11. The comparator 10 outputs a signal for controlling an operating state and a stopping state of an operation circuit using voltage of a VDD terminal 12 which is below the voltage of the VCC terminal 11 as supply voltage by comparing the voltage terminal 11 detected by the VCC detection means 9 with VBG voltage. The preoperation malfunction prevention circuit 7 for indefinite period maintains the voltage of the VDD terminal 12 as zero when the voltage of the VCC terminal 11 is less than voltage VCCm, sets the voltage of the VDD terminal 12 equal to the voltage of the VCC terminal 11 when the voltage of the VCC terminal 11 is the VCCm or more and below voltage VCC_1 and sets the voltage of the VDD terminal 12 equal to the voltage of the VCC terminal 11 when the voltage of the VCC terminal 11 is the voltage VCC_1 or more.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供即使在使用小而高的基准电压电压时也是安全的参考电源电压电路。
解决方案：参考电源电压具有VCC检测装置9，比较器10和无限期的预操作故障防止电路7。 VCC检测装置9检测VCC端子11的电压。比较器10使用低于VCC端子11的电压的VDD端子12的电压来输出用于控制运行状态和运行电路的停止状态的信号，通过将由VCC检测装置9检测的电压端子11与VBG电压进行比较来提供电压。当VCC端子11的电压小于电压VCCm时，用于无限期的操作前故障防止电路7将VDD端子12的电压保持为零，将VDD端子12的电压设定为等于VCC端子11的电压当VCC端子11的电压为VCCm以上且低于电压VCC_1时，当VCC端子11的电压为VCC_1以上时，将VDD端子12的电压设定为与VCC端子11的电压相等。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007202313A Switching control circuit 有权
标题翻译：切换控制电路
公开(公告)号：JP2007202313A
公开(公告)日：2007-08-09
申请号：JP2006018308
申请日：2006-01-27
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： YATANI YOSHIAKI , ARAKAWA RYUTARO , KUNIMATSU TAKASHI , FUKUI MINORU
IPC分类号： H02M3/00
CPC分类号： H02M3/33507
摘要： PROBLEM TO BE SOLVED: To provide a switching control circuit capable of lengthening the off-period of a switching element, when the on-period of the switching element becomes equal to the total of a minimum pulse period (a specific period when drain current detection is not executed during a blanking period after the switching element is turned on), and of a detection delay period (a period from the time when the drain current exceeds a detection reference until the switching element is actually turned off), putting the switching element out of PWM control. SOLUTION: When the on-period of the switching element 2 becomes equal to the minimum pulse period, an off-period adjustment circuit 7 outputs an adjustment signal OFF_C for lengthening the off-period of the switching element 2 to the on/off circuit 6 which controls the intermittent on/off operation of the switching element 2. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够延长开关元件的截止周期的开关控制电路，当开关元件的导通周期变得等于最小脉冲周期的总和（特定时间段在开关元件接通后的消隐期间不执行漏极电流检测）和检测延迟期间（从漏极电流超过检测基准直到开关元件实际关断的时间段），放置开关元件超出PWM控制。解决方案：当开关元件2的导通周期变得等于最小脉冲周期时，偏移时间调整电路7输出用于将开关元件2的截止时间延长到导通/截止的调整信号OFF_C，关闭电路6，其控制开关元件2的间歇开/关操作。版权所有：（C）2007，JPO＆INPIT

3. 发明专利

JP2005266460A Driving substrate and semiconductor power module mounted on the same 审中-公开
标题翻译：驱动基板和半导体电源模块安装在同一个模块上
公开(公告)号：JP2005266460A
公开(公告)日：2005-09-29
申请号：JP2004080343
申请日：2004-03-19
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KUNIMATSU TAKASHI , ARAKAWA RYUTARO , KITADA KATSUHISA , HASHIGUCHI JUNPEI
IPC分类号： G09G3/20 , G09G3/291 , G09G3/294 , G09G3/296 , G09G3/28
摘要： PROBLEM TO BE SOLVED: To provide a driving substrate which makes a wiring pattern thereon simplified while suppressing a bad influence of spurious radiation noise, and also to provide a semiconductor power module having the driving substrate mounted thereon.
SOLUTION: A semiconductor power module 9 mounted on a Y electrode-side driving substrate 1 includes a separation circuit 4 being a main circuit where a sustain pulse current flows, a sustain circuit 5, and a power recovery circuit 6, so that a wiring pattern on the Y electrode-side driving substrate 1 is simplified, and the substrate area is reduced. Since a circuit pattern and a terminal arrangement in the semiconductor power module 9 are laid out so that a sustain pulse current path is the shortest path, an inductance parasitic on the internal circuit pattern and a voltage drop resulting from passing-round of the circuit pattern are reduced.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供在其上简化布线图案的驱动基板，同时抑制杂散辐射噪声的不良影响，并且还提供其上安装有驱动基板的半导体功率模块。解决方案：安装在Y电极侧驱动基板1上的半导体功率模块9包括作为维持脉冲电流流动的主电路的分离电路4，维持电路5和电源恢复电路6，使得 Y电极侧驱动基板1上的布线图案被简化，并且基板面积减小。由于半导体功率模块9中的电路图案和端子布置布置成维持脉冲电流路径是最短路径，寄生在内部电路图案上的电感和由电路图案的通过引起的电压降减少了版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2008125266A Switching power supply 审中-公开
标题翻译：切换电源
公开(公告)号：JP2008125266A
公开(公告)日：2008-05-29
申请号：JP2006307453
申请日：2006-11-14
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： FUKUI MINORU , KUNIMATSU TAKASHI , YATANI YOSHIAKI , ARAKAWA RYUTARO
IPC分类号： H02M3/28 , H02H7/20
摘要： PROBLEM TO BE SOLVED: To solve a problem that the detection of an output overload by a feedback circuit causes obstruction to the miniaturization of the feedback circuit or the delay time of the feedback circuit produces stress to a switching power supply or a load.
SOLUTION: Electric power is supplied to an auxiliary winding 7-3 and the control of an output voltage of a load 15 is started. The output voltage of the load 15 is detected by an output voltage detection circuit 10 made up of an auxiliary winding voltage waveform process circuit 10-1 connected to the auxiliary winding 7-3 of a transformer 7, a peak voltage hold circuit 10-2, and a reset circuit 22. Because a voltage proportional to a voltage generated across both ends of the secondary side 7-2 of the transformer 7 is generated in the auxiliary winding 7-3 of the transformer 7, a voltage waveform is held by the auxiliary winding voltage waveform process circuit 10-1. By comparing this voltage with a reference voltage by a comparison circuit 23 and by detecting an overload of a DC output voltage, a peak current value of a switching element 8 is reduced.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了解决由反馈电路检测输出过载的问题导致对反馈电路的小型化的阻碍或反馈电路的延迟时间对开关电源或负载产生应力。解决方案：向辅助绕组7-3供电，开始控制负载15的输出电压。负载15的输出电压由连接到变压器7的辅助绕组7-3的辅助绕组电压波形处理电路10-1，峰值电压保持电路10-2 和复位电路22.由于在变压器7的辅助绕组7-3中产生与变压器7的次级侧7-2的两端产生的电压成比例的电压，所以电压波形由辅助绕组电压波形处理电路10-1。通过比较电路23将该电压与参考电压进行比较，并且通过检测直流输出电压的过载，开关元件8的峰值电流值减小。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007142057A Light emitting diode driving device, and semiconductor device for driving light emitting diode 有权
标题翻译：发光二极管驱动装置和用于驱动发光二极管的半导体装置
公开(公告)号：JP2007142057A
公开(公告)日：2007-06-07
申请号：JP2005332246
申请日：2005-11-17
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KUNIMATSU TAKASHI , ARAKAWA RYUTARO , FUKUI MINORU , YATANI YOSHIAKI
IPC分类号： H01L33/00
摘要： PROBLEM TO BE SOLVED: To provide a light emitting diode driving device capable of high-accuracy constant-current driving, and to provide a semiconductor device for driving a light emitting diode. SOLUTION: While a switching element 7 is in an on state, current is caused to flow from a light emitting diode block 5 toward the switching element 7. When it is detected by a second current detection circuit 24 that the current in the switching element 7 reaches a predetermined value or above, the switching element 7 is turned off. Meanwhile, while the switching element 7 is in an off state, current caused by counterelectromotive force of a primary-side coil of a transformer 3 is caused to flow in the light emitting diode block 5. When it is detected that the current in a secondary-side coil of the transformer 3 reaches a predetermined value or below, the switching element 7 is turned on. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够进行高精度恒流驱动的发光二极管驱动装置，并提供用于驱动发光二极管的半导体装置。解决方案：当开关元件7处于导通状态时，使电流从发光二极管块5流向开关元件7.当第二电流检测电路24检测到电流开关元件7达到规定值以上，开关元件7截止。同时，当开关元件7处于断开状态时，引起由变压器3的初级侧线圈的反电动势引起的电流在发光二极管块5中流动。当检测到次级变压器3的侧面线圈达到规定值以下，开关元件7接通。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006196697A Semiconductor device for driving led and led driving device 有权
标题翻译：用于驱动LED和LED驱动器件的半导体器件
公开(公告)号：JP2006196697A
公开(公告)日：2006-07-27
申请号：JP2005006742
申请日：2005-01-13
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： ARAKAWA RYUTARO , YATANI YOSHIAKI , KUNIMATSU TAKASHI , FUKUI MINORU
IPC分类号： H01L33/00
CPC分类号： H05B33/0848 , H05B33/0815 , H05B33/0854 , H05B33/0887
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor device for driving an LED having an excellent power conversion efficiency and being proper to a miniaturization and an LED driving device using the semiconductor device. SOLUTION: The semiconductor device for driving the LEDs drives one or more of the LEDs. The semiconductor device has an input terminal being connected on the high-voltage side of a rectifying circuit rectifying an AC voltage and inputting a voltage from the rectifying circuit, an output terminal imparting a current to one or more of the LEDs, and a switching element block being connected between the input terminal and the output terminal and having a first switching element. The semiconductor device further has a regulator forming a power-supply voltage for driving and controlling the switching element block, and a drain-current detector detecting the drain current of the switching element block. The semiconductor device further has a control unit on-off controlling the first switching element so as to interrupt the drain current of the switching element block when the drain current reaches a fixed value. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于驱动具有优异的功率转换效率并且适合于小型化的LED的半导体器件和使用该半导体器件的LED驱动器件。解决方案：用于驱动LED的半导体器件驱动一个或多个LED。半导体器件具有连接在整流电路的高压侧的输入端子，对交流电压进行整流并输入来自整流电路的电压，向一个或多个LED赋予电流的输出端子，以及开关元件块连接在输入端和输出端之间并具有第一开关元件。半导体器件还具有形成用于驱动和控制开关元件块的电源电压的调节器和检测开关元件块的漏极电流的漏极电流检测器。半导体器件还具有控制单元开关控制第一开关元件，以便当漏极电流达到固定值时中断开关元件块的漏极电流。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2006108260A Semiconductor circuit for driving light emitting diode and light emitting diode driving device equipped therewith 有权
标题翻译：用于驱动发光二极管的半导体电路及其配备的发光二极管驱动装置
公开(公告)号：JP2006108260A
公开(公告)日：2006-04-20
申请号：JP2004290713
申请日：2004-10-01
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： YATANI YOSHIAKI , ARAKAWA RYUTARO
IPC分类号： H01L33/00
CPC分类号： H05B33/0815 , Y02B20/347
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor circuit for driving a light emitting diode capable of constant current control with simplified circuit constitution, with reduced electric power loss, and with a wide input voltage range; and to provide a light emitting diode driving device equipped with the semiconductor circuit. SOLUTION: The semiconductor circuit for driving a light emitting diode comprises a first input terminal connected with a light emitting diode; a switching element block composed of a first junction type FET and a first switching element; a reference voltage terminal connected with the other end of the first junction type FET for outputting reference voltage; a start/stop circuit for outputting a start signal if the reference voltage is above a predetermined value, while outputting a stop signal if the reference voltage is lower than the predetermined value; a current detection circuit for detecting a current flowing through the first switching element; and a control circuit for intermittently on/off controlling the first switching element at a predetermined oscillation frequency, based on an output signal of the start/stop circuit and an output signal of the current detection circuit, such that the current flowing through the light emitting diode is kept unchanged. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种半导体电路，用于驱动具有简化电路结构的恒定电流控制的发光二极管，具有降低的电功率损耗和较宽的输入电压范围; 并提供配备有半导体电路的发光二极管驱动装置。解决方案：用于驱动发光二极管的半导体电路包括与发光二极管连接的第一输入端; 由第一结型FET和第一开关元件构成的开关元件块; 与第一结型FET的另一端连接用于输出参考电压的参考电压端子; 如果所述参考电压高于预定值，则在所述参考电压低于所述预定值的同时输出停止信号的用于输出起始信号的启动/停止电路; 用于检测流过第一开关元件的电流的电流检测电路; 以及控制电路，用于基于所述启动/停止电路的输出信号和所述电流检测电路的输出信号，以预定的振荡频率间歇地开/关控制所述第一开关元件，使得流过所述发光二极管保持不变。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2008098352A Light emitting diode driving device 审中-公开
标题翻译：发光二极管驱动装置
公开(公告)号：JP2008098352A
公开(公告)日：2008-04-24
申请号：JP2006277554
申请日：2006-10-11
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： FUKUI MINORU , KUNIMATSU TAKASHI , YATANI YOSHIAKI , ARAKAWA RYUTARO
IPC分类号： H01L33/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that a rectifier diode used in a light emitting diode driving circuit is an obstruction in reducing the number of components and reducing a substrate area. SOLUTION: A zero cross detecting circuit 6 of input AC voltage 1 turns on IGBT for a collector terminal of IGBT2 at + side voltage, and it does not make current flow by IGBT reverse breakdown voltage at - side voltage. Namely, IGBT operates as the rectifier diode and the need for the rectifier diode is eliminated in the light emitting diode driving device. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题为了解决在发光二极管驱动电路中使用的整流二极管是减少元件数量和减少衬底面积的障碍的问题。
解决方案：输入交流电压1的零交叉检测电路6在+侧电压下对IGBT2的集电极端子导通IGBT，并且在侧电压下不通过IGBT反向击穿电压使电流流动。即，IGBT作为整流二极管工作，在发光二极管驱动装置中不需要整流二极管。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007194478A Light-emitting diode driving device 有权
标题翻译：发光二极管驱动器件
公开(公告)号：JP2007194478A
公开(公告)日：2007-08-02
申请号：JP2006012603
申请日：2006-01-20
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KUNIMATSU TAKASHI , ARAKAWA RYUTARO , YATANI YOSHIAKI , FUKUI MINORU
IPC分类号： H01L33/00
CPC分类号： H05B33/0815 , H05B33/0809
摘要： PROBLEM TO BE SOLVED: To provide a light-emitting diode driving device which reduces the noise terminal voltage. SOLUTION: The light emitting-diode driving device has a light-emitting diode 2 to which a voltage is impressed from a voltage source, a choke coil 3 connected in series to the light-emitting diode 2, a rectifier diode 4 which is connected in parallel to the light-emitting diode 2 and a choke coil 4 and supplies an electromotive force generated in the choke coil 3 to the light-emitting diode 2, and a switching drive circuit 5 having a control circuit block 7 which controls the current flowing in the light-emitting diode 2 by controlling the switching element 6 to determine the impression/un-impression of the current to the light-emitting diode 2 and the on/off timing of the switching element 6. The choke coil 3 is connected between the light-emitting diode 2 and the switching element 6. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供降低噪声端电压的发光二极管驱动装置。解决方案：发光二极管驱动装置具有从电压源施加电压的发光二极管2，与发光二极管2串联连接的扼流线圈3，整流二极管4，与发光二极管2和扼流线圈4并联连接并将产生在扼流线圈3中的电动势提供给发光二极管2，切换驱动电路5具有控制电路块7，控制电路块7控制通过控制开关元件6来确定对发光二极管2的电流的印象/不印象以及开关元件6的接通/断开定时，在发光二极管2中流动的电流。扼流线圈3是连接在发光二极管2和开关元件6之间。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2007115594A Attachment for led light 有权
标题翻译： LED灯具附件
公开(公告)号：JP2007115594A
公开(公告)日：2007-05-10
申请号：JP2005307560
申请日：2005-10-21
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： ARAKAWA RYUTARO , KUNIMATSU TAKASHI , YATANI YOSHIAKI , FUKUI MINORU
IPC分类号： H05B37/02 , F21V21/02 , F21Y101/02
摘要： PROBLEM TO BE SOLVED: To provide an attachment for LED light which is laid between an existing receptacle for a lighting apparatus etc. and an LED module to supply a constant current to the LED module. SOLUTION: A driving circuit is placed in a case which generates a constant current for driving LED from electric power supplied through a power input terminal 2 prepared on the surface of the case, and outputs the current to a DC output terminal 3. In this case, the driving circuit includes a switching element serially connected to the LED module 4, a coil for accumulating electric energy as magnetic energy, a regenerating diode for continuing passing an electric current to the LED module 4 based on the magnetic energy accumulated in the coil when the switching element is turned off, a detection circuit which detects the current passing through the switching element, and a control circuit of the switching element which performs on/off-control on the basis of a predetermined clock and an output from the detection circuit. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供放置在用于照明装置等的现有插座和LED模块之间的LED灯的附件，以向LED模块提供恒定电流。解决方案：驱动电路被放置在通过在外壳表面准备的电源输入端子2提供的电力产生用于驱动LED的恒定电流的驱动电路，并将电流输出到DC输出端子3。在这种情况下，驱动电路包括串联连接到LED模块4的开关元件，用于蓄积电能作为磁能的线圈，再生二极管，用于基于积聚在LED模块4中的磁能继续流过LED模块4 当开关元件断开时的线圈，检测通过开关元件的电流的检测电路以及基于预定时钟执行开/关控制的开关元件的控制电路和来自检测电路。版权所有（C）2007，JPO＆INPIT

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