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    • 1. 发明专利
    • Power supply unit and led lighting device using the same
    • 电源单元和使用其的LED照明设备
    • JP2013143807A
    • 2013-07-22
    • JP2012002101
    • 2012-01-10
    • Eye Lighting Syst Corp株式会社アイ・ライティング・システムIwasaki Electric Co Ltd岩崎電気株式会社
    • MATSUMOTO MINORUSHIRAKI TOMOHIRO
    • H02M3/28H05B37/02
    • PROBLEM TO BE SOLVED: To provide a power supply unit and an LED lighting device therewith which solve problems of various kinds of high frequency noise, especially radiation noise.SOLUTION: The power supply unit for lighting an LED includes a metal casing having an AC input section, a DC output section connected with an LED element, and a grounding terminal. The metal casing has therein: a DC conversion circuit for rectifying an AC input from the AC input section; a pair of output lines connecting output nodes of the DC conversion circuit to the DC output section; a control circuit for controlling the DC conversion circuit; a first capacitor having one node connected to at least one of the pair of output lines and the other node connected to the metal casing; and an inductor inserted in the at least one output line between the output node and the one node.
    • 要解决的问题:提供一种解决各种高频噪声,特别是辐射噪声问题的电源单元和LED照明装置。解决方案:用于点亮LED的电源单元包括具有AC输入的金属外壳 与LED元件连接的直流输出部以及接地端子。 金属外壳中有一个直流转换电路,用于对交流输入部分的交流输入进行整流; 一对输出线,将直流转换电路的输出节点连接到直流输出部分; 用于控制DC转换电路的控制电路; 第一电容器,其具有连接到所述一对输出线中的至少一个的节点和连接到所述金属壳体的另一节点; 以及插入在输出节点和一个节点之间的至少一个输出线路中的电感器。
    • 2. 发明专利
    • Led power-supply device with sensor
    • 带传感器的LED电源装置
    • JP2013093147A
    • 2013-05-16
    • JP2011233505
    • 2011-10-25
    • Iwasaki Electric Co Ltd岩崎電気株式会社
    • NOZUKI SHINICHISHIRAKI TOMOHIROKAWAMATA NAOKI
    • H05B37/02
    • Y02B20/42
    • PROBLEM TO BE SOLVED: To ensure a sensor operating voltage at the time of turning-off of an LED without increasing the power consumption at the time of turning-on of the LED, in an LED power-supply device with a sensor.SOLUTION: An LED power-supply device with a sensor includes: a DC/DC conversion section 3; a load section 4 receiving an output of the DC/DC conversion section 3; a control section 6 controlling the output of the DC/DC conversion section 3; a secondary power-supply section 5 generating a voltage according to an output current of the DC/DC conversion section 3; and a sensor section 8 in which a voltage generated by the secondary power-supply section 5 is supplied as an operating voltage and which determines lighting-on or lighting-off of an LED 40 according to a detection state of a sensor circuit 80. The load section 4 is composed of a series circuit of the LED 40 and a first switch element and a series circuit of a bleeder resistor and a second switch element, brings the first switch into conduction and the second switch out of conduction when the sensor section 8 determines turning-on of the LED 40, and brings the second switch element into conduction and brings the first switch element out of conduction when the sensor section 8 determines turning-off of the LED.
    • 要解决的问题:为了确保LED在关闭时的传感器工作电压,而不增加LED接通时的功耗,在具有传感器的LED电源装置中 。 具有传感器的LED电源装置包括:DC / DC转换部分3; 接收DC / DC转换部3的输出的负载部4; 控制部分6,控制DC / DC转换部分3的输出; 二次电源部分5,根据DC / DC转换部分3的输出电流产生电压; 以及传感器部分8,其中由二次电源部分5产生的电压作为工作电压被提供,并且根据传感器电路80的检测状态确定LED40的点亮或点亮。 负载部分4由LED 40的串联电路和第一开关元件以及放电电阻器和第二开关元件的串联电路组成,当传感器部分8 确定LED 40的导通,并且当传感器部分8确定LED的关闭时,使第二开关元件导通并使第一开关元件导通。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • Led power supply device and outdoor luminaire
    • LED电源装置和室外灯
    • JP2014049180A
    • 2014-03-17
    • JP2012188428
    • 2012-08-29
    • Iwasaki Electric Co Ltd岩崎電気株式会社
    • NISHIZAWA YOSHIOSHIRAKI TOMOHIRONAGAURA MASAYUKINOZUKI SHINICHIIWADATE HIDEAKI
    • F21V23/00F21S8/08F21Y101/02
    • PROBLEM TO BE SOLVED: To provide an LED power supply device for actualizing a well-workable ground wiring construction for an outdoor luminaire using an LED as a light source.SOLUTION: The LED power supply device at one end of which an LED-arranged lamp fitting part is mounted, the other end of which is built in a pole part to be embedded in a ground, and to which an AC power supply is input to supply a DC current to the LED, includes a conductive case sealing an internal circuit, a first ground terminal provided inside the case, a power supply ground wire connected via the first ground terminal to the case and the internal circuit and pulled outside the case, and a second ground terminal provided on the outer face of the case so that a relay ground wire connected to the ground terminal of the lamp fitting part is connectable thereto. The power supply ground wire and the second ground terminal are electrically connected to each other via the case.
    • 要解决的问题:提供一种LED电源装置,用于实现使用LED作为光源的室外照明设备的良好可行的接地布线结构。解决方案:一端的LED电源装置,其中LED布置的灯 安装件,其另一端安装在嵌入地面的极部件中,并且输入交流电源以向该LED提供直流电流,包括密封内部电路的导电壳体, 设置在壳体内的第一接地端子,经由第一接地端子连接到壳体和内部电路并被拉出外壳的电源地线,以及设置在壳体的外表面上的第二接地端子,使得继电器 连接到灯具部件的接地端子的接地线可连接到其上。 电源地线和第二接地端子经由壳体彼此电连接。
    • 4. 发明专利
    • Checker circuit detecting whether or not choke coil ballast is connected between socket for bulb and ac power supply, and checker device using the same
    • 检查电路是否连接到线圈和电源插座之间的连接,以及使用相同的检查器件
    • JP2013120667A
    • 2013-06-17
    • JP2011267579
    • 2011-12-07
    • Iwasaki Electric Co Ltd岩崎電気株式会社
    • NISHIZAWA YOSHIOSHIRAKI TOMOHIRO
    • H05B37/02
    • Y02B20/42
    • PROBLEM TO BE SOLVED: To provide a checker circuit for detecting whether or not a choke coil ballast is connected to a power supply side of a socket for a bulb, and a checker device using the same.SOLUTION: A checker circuit has: a first circuit connected between a pair of input terminals T1 and T2 to which a power can be fed from a socket for a bulb, and comprising a series circuit of a voltage semiconductor switch 101 and a capacitor 102; and a second circuit comprising a series circuit including a diode 103, a voltage regulator diode 105, and an output element 106. A Zener voltage of the voltage regulator diode 105 is higher than a peak voltage value of an AC power supply, and is lower than a peak value of a voltage generated at the capacitor 102 at conduction of the voltage semiconductor switch 101 in the case that the input terminals T1 and T2 are connected to the AC power supply via a choke coil ballast 12. The output element 106 is made be in an active state by a current flowing via the voltage regulator diode 105.
    • 要解决的问题:提供一种用于检测扼流线圈镇流器是否连接到用于灯泡的插座的电源侧的检验电路,以及使用该电路的检验装置。 检验电路具有:连接在一对输入端子T1和T2之间的第一电路,能够从灯泡用插座供电,并且包括电压半导体开关101和 电容器102; 以及包括二极管103,稳压二极管105和输出元件106的串联电路的第二电路。稳压二极管105的齐纳电压高于交流电源的峰值电压值,并且较低 比在输入端子T1和T2经由扼流线圈镇流器12连接到AC电源的情况下在电压器半导体开关101的导通时在电容器102处产生的电压的峰值高。输出元件106被制成 通过电流调节器二极管105流动的电流处于活动状态。(C)2013,JPO和INPIT
    • 5. 发明专利
    • Case for power supply device, led power supply device, lighting equipment for road lamp and lighting equipment for tunnel lamp
    • 电源设备案例,LED电源设备,道路灯照明设备及隧道灯照明设备
    • JP2014056648A
    • 2014-03-27
    • JP2012199206
    • 2012-09-11
    • Iwasaki Electric Co Ltd岩崎電気株式会社
    • NISHIZAWA YOSHIOSHIRAKI TOMOHIRONAGAURA MASAYUKINOZUKI SHINICHIIWADATE HIDEAKI
    • F21S2/00F21S8/08F21Y101/02
    • PROBLEM TO BE SOLVED: To enable a case for power supply device to be standardized for various types of outdoor lighting equipment and a plurality of LED power supply devices to be efficiently arranged within the outdoor lighting equipment.SOLUTION: This case for a power supply device comprises a first plane part forming the maximum large plane, a second plane part bent perpendicular from the first plane part, oppositely faced third and fourth plane parts while being connected to the bent ends of the first and second plane parts and a closing plane for closing a space defined by the first to fourth plane parts to form the closed space. The third plane part has the first and second protrusions and the fourth plane part has the third and fourth protrusions. The first and third protrusions form a plane in parallel with the first plane part and are formed to protrude in opposite directions to each other while holding the first plane between them, the second and fourth protrusions form a plane in parallel with the second plane part and are formed to protrude in opposite directions to each other while holding the second plane between them, and each of the first to fourth insertion parts into which an insertion member can be inserted is formed at the first to fourth protrusions.
    • 要解决的问题:为了使各种类型的室外照明设备和多个LED电源装置的电源装置的外壳能够被有效地布置在室外照明设备内。解决方案:这种电源装置的情况 包括形成最大大平面的第一平面部分,与第一平面部分垂直弯曲的第二平面部分,相对地面对第三和第四平面部分,同时连接到第一和第二平面部分的弯曲端部,以及闭合平面 由第一至第四平面部分限定的空间以形成封闭空间。 第三平面部具有第一和第二突起,第四平面部具有第三和第四突起。 第一和第三突起形成与第一平面部平行的平面,并且形成为在彼此保持第一平面的同时彼此相反的方向突出,第二和第四突起形成与第二平面部平行的平面, 形成为在彼此保持第二平面的同时彼此相反的方向突出,并且在第一至第四突起处形成插入部件能插入的第一至第四插入部中的每一个。
    • 6. 发明专利
    • Led lighting device and led bulb
    • LED照明装置和LED灯泡
    • JP2012221561A
    • 2012-11-12
    • JP2011082521
    • 2011-04-04
    • Iwasaki Electric Co Ltd岩崎電気株式会社
    • NISHIZAWA YOSHIOSHIRAKI TOMOHIROYAMAZAKI YUYA
    • H05B37/02
    • PROBLEM TO BE SOLVED: To provide an LED lighting device which can maintain a constant LED current even when a power supply voltage fluctuates, and an LED bulb.SOLUTION: The LED lighting device comprises a rectification circuit which rectifies a power supply voltage, a step-down chopper circuit which controls by PWM an LED current which flows in the LED upon receiving the output of the rectification circuit, a detection circuit which detects the switching current of the step-down chopper circuit, and a PWM control circuit which controls by PWM the step-down chopper circuit so as to maintain a detected switching current at a constant level. The PWM control circuit of this device includes a filter circuit which filters the output voltage of the current detection circuit, a reference voltage generation circuit which generates a reference voltage, a comparison drive circuit which determines an electric conduction period of the step-down chopper circuit according to the result of comparison between the output voltage of the filter circuit and the reference voltage, and a power supply voltage detection circuit which detects the power supply voltage. Here, the reference voltage generation circuit is configured so that, in a prescribed power supply voltage range, the reference voltage monotonously decreases relative to the power supply voltage which is detected by the power supply voltage detection circuit.
    • 要解决的问题:提供即使当电源电压波动时也能够保持LED电流恒定的LED照明装置和LED灯泡。 解决方案:LED照明装置包括整流电源电压的整流电路,通过PWM控制在接收到整流电路的输出时在LED中流动的LED电流的降压斩波电路,检测电路 其检测降压斩波电路的开关电流,以及通过PWM控制降压斩波电路以将检测的开关电流保持在恒定电平的PWM控制电路。 该装置的PWM控制电路包括对电流检测电路的输出电压进行滤波的滤波电路,产生基准电压的基准电压产生电路,决定降压斩波电路的导通时间的比较驱动电路 根据滤波电路的输出电压与基准电压的比较结果,以及检测电源电压的电源电压检测电路。 这里,参考电压产生电路被配置为使得在规定的电源电压范围内,参考电压相对于由电源电压检测电路检测到的电源电压单调减小。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • Led lighting device, and led illuminating fixture
    • LED照明设备和LED照明灯具
    • JP2014082148A
    • 2014-05-08
    • JP2012230527
    • 2012-10-18
    • Iwasaki Electric Co Ltd岩崎電気株式会社
    • NISHIZAWA YOSHIOSHIRAKI TOMOHIRONAGAURA MASAYUKINOZUKI SHINICHIIWADATE HIDEAKI
    • H05B37/02
    • PROBLEM TO BE SOLVED: To provide an LED lighting device having a switching power supply circuit, capable of achieving a configuration by which a high input power factor can be obtained over a wide input current range, and thereby, to provide a standard power supply that matches various types of LED illuminating fixtures.SOLUTION: An LED lighting device 1 comprises: a rectification circuit 3 rectifying an AC input current; a first capacitor 4 in which an output of the rectification circuit is charged; a switching power supply circuit 5 converting a voltage of the first capacitor into a predetermined DC output, and applying it to an LED array; and a capacitor switching circuit 6. The capacitor switching circuit comprises: an input current detector detecting the AC input current; a switch part that becomes in a conduction state when an AC input current value detected at the input current detector becomes larger than a predetermined value; and a second capacitor 67 connected in series to the switch part. A series circuit of the switch part and the second capacitor is connected in parallel with the first capacitor.
    • 要解决的问题:为了提供具有开关电源电路的LED照明装置,能够实现能够在宽的输入电流范围内获得高输入功率因数的结构,从而提供标准电源, 匹配各种LED照明灯具。解决方案:LED照明装置1包括:整流电路3整流交流输入电流; 对整流电路的输出进行充电的第一电容器4; 开关电源电路5,将第一电容器的电压转换成预定的直流输出,并将其施加到LED阵列; 电容器切换电路包括:检测交流输入电流的输入电流检测器; 当在输入电流检测器处检测到的交流输入电流值变得大于预定值时变为导通状态的开关部分; 以及与开关部串联连接的第二电容器67。 开关部分和第二电容器的串联电路与第一电容器并联连接。
    • 9. 发明专利
    • Led lighting device and led bulb
    • LED照明装置和LED灯泡
    • JP2012169198A
    • 2012-09-06
    • JP2011030589
    • 2011-02-16
    • Iwasaki Electric Co Ltd岩崎電気株式会社
    • NISHIZAWA YOSHIOSHIRAKI TOMOHIROTAKEDA TOSHIYAYAMAZAKI YUYA
    • H05B37/02F21S2/00F21Y101/02
    • PROBLEM TO BE SOLVED: To provide a configuration for protecting an LED bulb in a reusable state even when the LED bulb happens to be connected to a power supply via high pressure discharge lamp stabilizer (choke coil).SOLUTION: An LED lighting device comprises a rectification circuit for rectifying an input voltage, a current limiting circuit for limiting a current flowing from an output of the rectification circuit into an LED element, a control circuit for controlling an output of the current limiting circuit, and a smoothing capacitor connected in parallel to the LED element. In the LED lighting device, a series circuit consisting of a voltage switching element which conducts electricity when an applied voltage exceeds a breakdown voltage and an impedance element is connected between output ends of the rectification circuit, so that, when a voltage developed in the impedance element exceeds a prescribed threshold, the control circuit places the current limiting circuit into an inoperative state.
    • 要解决的问题:即使当LED灯泡恰好通过高压放电灯稳定器(扼流圈)连接到电源时,提供用于保护LED灯泡处于可重复使用状态的配置。 解决方案:一种LED照明装置,包括用于整流输入电压的整流电路,用于限制从整流电路的输出流入LED元件的电流的限流电路,用于控制电流输出的控制电路 并且与LED元件并联连接的平滑电容器。 在LED照明装置中,由施加电压超过击穿电压的导通电压的电压开关元件和阻抗元件连接在整流电路的输出端之间的串联电路,使得当阻抗 元件超过规定的阈值时,控制电路将限流电路置于非工作状态。 版权所有(C)2012,JPO&INPIT