会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明专利
    • Light source lighting device and illuminating device
    • 光源照明装置和照明装置
    • JP2013161591A
    • 2013-08-19
    • JP2012021402
    • 2012-02-03
    • Mitsubishi Electric Corp三菱電機株式会社Mitsubishi Electric Lighting Corp三菱電機照明株式会社
    • NONAKA TAKAFUMIKINOSHITA HARUKAKUMAGAI TAKASHIFUNAYAMA SHINSUKEMAEDA TAKASHI
    • H05B37/02
    • PROBLEM TO BE SOLVED: To automatically determine which one of at least two kinds of light-emitting element groups is connected in one power supply circuit while considering influences of a temperature of the light-emitting element group at the determination.SOLUTION: In a power supply circuit 100, a microcomputer 151 stores a table of relation between the number of LED lamps of a light-emitting element group 802, a degree of dimming, and a current value outputted from a power conversion circuit 120, for each number of lamps. The microcomputer 151, in a state that a constant current of 15 mA is outputted from the power conversion circuit 120, receives an applied voltage to the light-emitting element group 802, which is detected by a voltage detection circuit 123, compares the received applied voltage with a number-of-lamps determination voltage in a memory 152, determines the number of LED lamps of the light-emitting element group 802, and selects the table depending on the determination result. The microcomputer 151, at the determination of the number of LED lamps, corrects the number-of-lamps determination voltage on the basis of temperature information detected by a temperature detection circuit 200, and then compares the detected applied voltage with the number-of-lamps determination voltage in the memory 152.
    • 要解决的问题:在确定中考虑发光元件组的温度的影响的同时,自动确定至少两种发光元件组中的哪一种连接在一个电源电路中。解决方案:在功率 电源电路100中,微型计算机151存储发光元件组802的LED灯的数量,调光度和从功率转换电路120输出的电流值之间的关系的表。 微型计算机151在从电力转换电路120输出15mA的恒定电流的状态下,接收对由电压检测电路123检测出的发光元件组802施加的电压, 在存储器152中具有数量灯确定电压的电压确定发光元件组802的LED灯的数量,并且根据确定结果来选择该表。 微型计算机151在确定LED灯的数量时,基于由温度检测电路200检测到的温度信息来校正灯数确定电压,然后将检测到的施加电压与数量 - 灯的确定电压在存储器152中。
    • 2. 发明专利
    • Power supply device and lighting device
    • 电源设备和照明设备
    • JP2013105713A
    • 2013-05-30
    • JP2011250759
    • 2011-11-16
    • Mitsubishi Electric Corp三菱電機株式会社Mitsubishi Electric Lighting Corp三菱電機照明株式会社
    • KINOSHITA HARUKANONAKA TAKAFUMIKUMAGAI TAKASHIITO YUICHIROFUNAYAMA SHINSUKEMAEDA TAKASHI
    • H05B37/02H01L33/00H02M3/155
    • PROBLEM TO BE SOLVED: To keep a power factor intact even when a power supply to a load circuit is reduced for dimming or the like, suppress a power loss in a power supply device, and stabilize an operation of a power factor improvement circuit.SOLUTION: A power factor improvement circuit 110 inputs thereinto an AC voltage, converts the input AC voltage to a DC voltage and outputs the converted DC voltage, and improves a power factor of an input AC current. A control circuit 140 increases the voltage value of the DC voltage output from the power factor improvement circuit 110 with increasing voltage value of the AC voltage input into the power factor improvement circuit 110. The control circuit 140 increases the voltage value of the DC voltage output from the power factor improvement circuit 110 with decreasing degree of dimming indicated by a dimmer signal input into a dimmer signal input circuit 180.
    • 要解决的问题:为了使功率因数保持不变,即使当降低对负载电路的电源进行调光等时,抑制电源装置中的功率损耗,并且稳定功率因数改善的操作 电路。 解决方案:功率因数改善电路110输入AC电压,将输入AC电压转换成DC电压并输出转换的DC电压,并提高输入AC电流的功率因数。 控制电路140通过输入到功率因数改善电路110的交流电压的电压值增加从功率因数改善电路110输出的直流电压的电压值。控制电路140增加直流电压输出的电压值 来自功率因数提高电路110,其具有由输入到调光器信号输入电路180的调光信号指示的调光程度减小。(C)2013,JPO和INPIT
    • 6. 发明专利
    • 直流−直流コンバータ
    • DC-DC转换器
    • JP2014204499A
    • 2014-10-27
    • JP2013076897
    • 2013-04-02
    • 三菱電機株式会社Mitsubishi Electric Corp
    • KINOSHITA HARUKAKUMAGAI TAKASHINONAKA TAKAFUMI
    • H02M3/155
    • 【課題】電源投入時に発生する平滑コンデンサの充電電流(突入電流)に起因する直流−直流コンバータの信頼性低下が懸念される。【解決手段】直流−直流コンバータ(DC1)は、印加された直流入力電圧(Vin)を昇圧して昇圧パルス(Vs)を出力する昇圧部(2)と、昇圧パルスを平滑して直流出力電圧(Vout)を出力する平滑部(3)と、充電部(4)と、を備える。充電部は、直流入力電圧が昇圧部に印加される前に、平滑部が有する平滑コンデンサを設定電圧Vcに充電する。【選択図】図1
    • 要解决的问题为了解决在上电时发生的平滑电容器的充电电流(浪涌电流)导致DC-DC转换器的可靠性降低的问题。解决方案:DC-DC转换器(DC1)包括 升压单元(2),用于通过升压施加到其上的DC输入电压(Vin)来输出升压脉冲(Vs) 平滑单元(3),用于通过平滑所述升压脉冲来输出DC输出电压(Vout); 和充电单元(4)。 在将DC输入电压施加到增压器单元之前,充电单元将平滑单元所拥有的平滑电容器充电至设定电压Vc。
    • 8. 发明专利
    • Power supply circuit and lighting device
    • 电源电路和照明设备
    • JP2011151913A
    • 2011-08-04
    • JP2010010040
    • 2010-01-20
    • Mitsubishi Electric CorpMitsubishi Electric Lighting Corp三菱電機株式会社三菱電機照明株式会社
    • NONAKA TAKAFUMIKUMAGAI TAKASHIITO YUICHIROIWATSUBO KOKISAITO KOICHI
    • H02M7/12H02M3/155H02M7/21H05B37/02
    • PROBLEM TO BE SOLVED: To reduce a power loss in a power supply circuit.
      SOLUTION: A choke coil L22 (coil) gains an input voltage via a pair of input terminals. A smoothing capacitor C26 is charged with a coil current passing through the choke coil L22. A switching element Q21 (first switching circuit) is placed between the input terminals and the choke coil L22 and interrupts a voltage applied from the input terminals to the choke coil L22. A rectifying device D23 is placed between the choke coil L22 and the smoothing capacitor C26 and interrupts a current flowing from the choke coil L22 to the smoothing capacitor C26 when the switching element Q21 is in conduction. A switching element Q25 (second switching circuit) is electrically connected in parallel with the rectifying device D23, and interrupts a current charging the smoothing capacitor C26 from the choke coil L22 when the rectifying device D23 is interrupted.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:减少电源电路中的功率损耗。

      解决方案:扼流线圈L22(线圈)通过一对输入端子获得输入电压。 平滑电容器C26充满通过扼流线圈L22的线圈电流。 开关元件Q21(第一开关电路)设置在输入端子和扼流线圈L22之间,并且中断从输入端子施加到扼流线圈L22的电压。 整流装置D23位于扼流线圈L22与平滑电容器C26之间,当开关元件Q21导通时,中断从扼流线圈L22流向平滑电容器C26的电流。 开关元件Q25(第二开关电路)与整流装置D23并联电连接,并且当整流装置D23中断时,中断从扼流线圈L22向平滑电容器C26充电的电流。 版权所有(C)2011,JPO&INPIT

    • 9. 发明专利
    • Light source lighting device
    • 光源照明设备
    • JP2013089286A
    • 2013-05-13
    • JP2011225444
    • 2011-10-13
    • Mitsubishi Electric Corp三菱電機株式会社Mitsubishi Electric Lighting Corp三菱電機照明株式会社
    • NONAKA TAKAFUMIKUMAGAI TAKASHIKINOSHITA HARUKAFUNAYAMA SHINSUKEMAEDA TAKASHI
    • H05B37/02
    • PROBLEM TO BE SOLVED: To determine automatically a light emitting element group (e.g. LED series circuits) connected in one power supply circuit from at least two types of light emitting element groups, and to drive the light emitting element group with a constant current value required by the light emitting element.SOLUTION: In a power supply circuit 100, a microcomputer 151 prestores the correspondence of the number of lamps and the degree of dimming of an LED series circuit 851 and the current value of a constant current being output from a power conversion circuit 120. Based on a voltage being applied to the LED series circuit 851 from the power conversion circuit 120 and detected by a voltage detection circuit 123 while a constant current of 15 mA is output from the power conversion circuit 120, the microcomputer 151 determines the number of lamps of the LED series circuit 851, and makes the power conversion circuit 120 output a constant current of a current value corresponding to the combination of the number of lamps and a degree of dimming commanded from a dimmer 103. After determining the number of lamps, the microcomputer 151 determines the number of lamps again at a periodic timing and checks erroneous determination.
    • 要解决的问题:为了自动地确定从至少两种类型的发光元件组连接在一个电源电路中的发光元件组(例如,LED串联电路),并且以恒定的方式驱动发光元件组 发光元件所需的电流值。

      解决方案:在电源电路100中,微计算机151预先存储灯数量的对应关系和LED串联电路851的调光程度以及从功率转换电路120输出的恒定电流的当前值 基于从功率转换电路120施加到LED串联电路851的电压并由电压检测电路123检测到的电压,同时从功率转换电路120输出15mA的恒定电流,微计算机151确定 LED串联电路851的灯,并且使电力转换电路120输出与灯数量的组合对应的电流值和从调光器103指示的调光度的恒定电流。在确定灯的数量之后, 微计算机151在周期性定时再次确定灯的数量并检查错误的确定。 版权所有(C)2013,JPO&INPIT

    • 10. 发明专利
    • Electric power unit and luminaire
    • 电力单元和灯泡
    • JP2012175887A
    • 2012-09-10
    • JP2011038607
    • 2011-02-24
    • Mitsubishi Electric CorpMitsubishi Electric Lighting Corp三菱電機株式会社三菱電機照明株式会社
    • NONAKA TAKAFUMIKUMAGAI TAKASHIITO YUICHIROKINOSHITA HARUKAFUNAYAMA SHINSUKEMAEDA TAKASHI
    • H02M3/155H01L33/00
    • PROBLEM TO BE SOLVED: To automatically determine which of at least two kinds of light emitting element groups (for example, LED series circuits) is connected in one power supply circuit, and to drive the light emitting element group with a constant current value that the light emitting element group requires.SOLUTION: In a power supply circuit 100, a microcomputer 151 previously stores correspondence between a lighting number and a dimming degree of an LED series circuit 851 and a current value of a constant current output from a power conversion circuit 120. The microcomputer 15 determines a lighting number of the LED series circuit 851 based upon a voltage detected by a voltage detection circuit 123 and applied from the power conversion circuit 120 to the LED series circuit 851 in a state in which the power conversion circuit 120 outputs a constant current of 15 mA, and makes the power conversion circuit 120 output a constant current having a current value corresponding to a combination of the lighting number and a dimming degree commanded by a dimmer 103.
    • 要解决的问题:为了自动确定在一个电源电路中连接至少两种发光元件组(例如,LED串联电路)中的哪一种,并且以恒定电流驱动发光元件组 发光元件组要求的值。 解决方案:在电源电路100中,微计算机151预先存储LED串联电路851的点亮次数和调光度与从功率转换电路120输出的恒定电流的当前值之间的对应关系。微计算机 图15中,根据由电压检测电路123检测出的电压,并且在电力转换电路120输出恒定电流的状态下,从电力转换电路120向LED串联电路851施加的LED串联电路851的点亮次数 并且使电力转换电路120输出具有与由调光器103指示的点亮次数和调光度的组合对应的电流值的恒定电流。(C)2012,JPO&INPIT