-
公开(公告)号：US20140232281A1
公开(公告)日：2014-08-21
申请号：US13833865
申请日：2013-03-15
Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
Inventor： Hirokazu Otake , Noriyuki Kitamura , Yuji Takahashi , Hiroshi Akahoshi
CPC classification number: H02M7/06 , H01L27/0817 , H02M3/1588 , H02M3/335 , H05B33/08 , Y02B70/1466
Abstract: According to an embodiment, a rectifier circuit includes a first diode, a switching element, and a second diode. The first diode is connected between a first terminal and a second terminal so that a direction toward the first terminal from the second terminal is in a forward direction. The switching element has a first main electrode connected to the first terminal, a second main electrode connected to a cathode of the first diode, and a gate electrode connected to an anode of the first diode. The second diode is connected in parallel with respect to the switching element so that a direction toward the first terminal from the cathode of the first diode is in a forward direction, between the first main electrode and the second main electrode of the switching element.
Abstract translation: 根据实施例，整流器电路包括第一二极管，开关元件和第二二极管。 第一二极管连接在第一端子和第二端子之间，使得从第二端子朝向第一端子的方向处于向前方向。 开关元件具有连接到第一端子的第一主电极，连接到第一二极管的阴极的第二主电极和连接到第一二极管的阳极的栅电极。 第二二极管相对于开关元件并联连接，使得从第一二极管的阴极朝向第一端子的方向在开关元件的第一主电极和第二主电极之间的正向方向上。
-
公开(公告)号：US20150084510A1
公开(公告)日：2015-03-26
申请号：US14190397
申请日：2014-02-26
Applicant: Toshiba Lighting & Technology Corporation
Inventor： Yohei Miura , Hiroshi Akahoshi , Noriyuki Kitamura , Hirokazu Otake , Masato Ishikawa , Yuji Takahashi
CPC classification number: H02H7/1213 , H02M3/335 , H05B33/0815 , H05B33/0887 , H05B33/0896 , Y02B20/341 , Y02B20/347
Abstract: According to one embodiment, there is provided a power supply device includes a DC-DC converter and a protection circuit. The DC-DC converter includes a switching element of a normally on type, a current control element of the normally on type connected to the switching element in series and configured to control an electric current flowing to the switching element, and a rectifying element connected to the current control element in series. The DC-DC converter converts, according to ON and OFF of the switching element, an input first direct-current voltage into a second-direct current voltage, which has an absolute value different from an absolute value of the first direct-current voltage, and supplies the second direct-current voltage to a load. When an electric current equal to or larger than a predetermined value flows to the switching element and the current control element, the protection circuit cuts off the electric current.
Abstract translation: 根据一个实施例，提供了一种包括DC-DC转换器和保护电路的电源装置。 DC-DC转换器包括一个常开型开关元件，一个常开型电流控制元件，其串联连接到该开关元件，并被配置为控制流向该开关元件的电流;以及整流元件，连接到 当前控制元件串联。 DC-DC转换器根据开关元件的ON和OFF将输入的第一直流电压转换成具有与第一直流电压的绝对值不同的绝对值的第二直流电压， 并将第二直流电压提供给负载。 当等于或大于预定值的电流流向开关元件和电流控制元件时，保护电路切断电流。
-
公开(公告)号：US08917021B2
公开(公告)日：2014-12-23
申请号：US13729993
申请日：2012-12-28
Applicant: Toshiba Lighting & Technology Corporation
Inventor： Yuji Takahashi , Hirokazu Otake , Noriyuki Kitamura , Hiroshi Akahoshi
CPC classification number: H05B37/02 , H02M1/126 , H02M2001/123 , H05B37/00
Abstract: A power supply apparatus of an embodiment includes a first filter, a second filter, and a switching power supply. The first filter and the second filter attenuate a common mode current to a level lower than a normal mode current. The switching power supply is connected between the first filter and the second filter, and supplies electric power to an illumination load via the second filter.
Abstract translation: 实施例的电源装置包括第一滤波器，第二滤波器和开关电源。 第一滤波器和第二滤波器将共模电流衰减到低于正常模式电流的电平。 开关电源连接在第一滤波器和第二滤波器之间，并通过第二滤波器向照明负载提供电力。
-
公开(公告)号：US20140285099A1
公开(公告)日：2014-09-25
申请号：US14017603
申请日：2013-09-04
Applicant: Toshiba Lighting & Technology Corporation
Inventor： Hiroshi Akahoshi , Hirokazu Otake , Noriyuki Kitamura , Yuji Takahashi
CPC classification number: H05B33/0896 , H02M1/126 , H02M1/32 , H02M7/217 , H05B33/0815 , Y02B20/347
Abstract: According to one embodiment, there is provided a power supply circuit including a power conversion unit, a current regulator, a controller, and a controller power supply. The power conversion unit converts an AC voltage with a controlled conduction angle into a different voltage. The current regulator includes a branch path electrically connected to the power supply path and switches between a first state in which a part of a current flowing through the power supply path flows to the branch path and a second state in which a current flowing to the branch path is lower than that of the first state. The controller switches the current regulator to the second state in at least a part of a conduction period of a detected conduction angle and switches the current regulator to the first state in a blocking period of the detected conduction angle.
Abstract translation: 根据一个实施例，提供了一种电源电路，其包括功率转换单元，电流调节器，控制器和控制器电源。 功率转换单元将具有受控导通角的交流电压转换为不同的电压。 电流调节器包括电连接到电源路径的分支路径，并且在其中流过电源路径的电流的一部分流向分支路径的第一状态和其中流向分支的电流的第二状态 路径低于第一状态。 控制器在检测到的导通角的导通周期的至少一部分中将电流调节器切换到第二状态，并且在检测到的导通角的阻塞周期中将电流调节器切换到第一状态。
-
公开(公告)号：US20150084531A1
公开(公告)日：2015-03-26
申请号：US14211629
申请日：2014-03-14
Applicant: Toshiba Lighting & Technology Corporation
Inventor： Hirokazu Otake , Noriyuki Kitamura , Yuji Takahashi , Hiroshi Akahoshi
CPC classification number: H02M7/06 , H05B33/0803 , H05B33/0815 , Y02B20/347
Abstract: According to one embodiment, a power supply device includes a first inductor, a current control section configured to limit a current value of an electric current flowing through the first inductor to a predetermined current value, the current control section including a first switching element of a normally on type and a resistor connected to a main terminal of the first switching element, a rectifying element connected to the current control section in series, and a second inductor magnetically coupled to the first inductor. The second inductor is configured to induce a voltage for turning on the current control section, when the electric current of the first inductor increases, to induce a voltage for turning off the current control section, when the electric current of the first inductor decreases, and to supply the induced voltage to a control terminal of the current control section.
Abstract translation: 根据一个实施例，电源装置包括第一电感器，电流控制部分，被配置为将流过第一电感器的电流的电流值限制到预定电流值，电流控制部分包括第一开关元件 连接到第一开关元件的主端子的电阻器，连接到电流控制部件的串联的整流元件和与第一电感器磁耦合的第二电感器。 当第一电感器的电流降低时，第二电感器被配置为当第一电感器的电流增加时引起用于接通电流控制部分的电压，以引起用于关断电流控制部分的电压，以及 以将感应电压提供给电流控制部分的控制端子。
-
Patent Agency Ranking
公开(公告)号：US20150084530A1
公开(公告)日：2015-03-26
申请号：US14211214
申请日：2014-03-14
Applicant: Toshiba Lighting & Technology Corporation
Inventor： Noriyuki Kitamura , Yohei Miura , Hirokazu Otake , Yuji Takahashi
CPC classification number: H02M7/06 , H05B33/0815 , H05B37/02 , Y02B20/347
Abstract: According to one embodiment, a power supply device includes a conductive first mounting board, a first switching element, a current control element, and a second switching element. The first switching element is mounted on the first mounting board. The current control element is mounted on the first mounting board, includes a main terminal connected to the first mounting board, is connected to the first switching element in series, and is configured to limit an electric current of the first switching element. The second switching element is connected to the current control element in series. An electric current flows to the second switching element when the first switching element is off.
Abstract translation: 根据一个实施例，电源装置包括导电第一安装板，第一开关元件，电流控制元件和第二开关元件。 第一开关元件安装在第一安装板上。 电流控制元件安装在第一安装板上，包括连接到第一安装板的主端子，串联连接到第一开关元件，并且被配置为限制第一开关元件的电流。 第二开关元件串联连接到电流控制元件。 当第一开关元件断开时，电流流向第二开关元件。
-
公开(公告)号：US20150084528A1
公开(公告)日：2015-03-26
申请号：US14210529
申请日：2014-03-14
Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
Inventor： Hirokazu Otake , Noriyuki Kitamura , Yuji Takahashi , Masato Ishikawa , Yohei Miura
CPC classification number: H02M7/06 , H05B33/0815 , H05B37/02
Abstract: According to one embodiment, a power supply device includes a rectifier circuit, a smoothing capacitor, and a normally on type transistor. The rectifier circuit is configured to rectify an alternating current supplied from a voltage source. The smoothing capacitor is charged by an output current output from the rectifier circuit. The normally on type transistor is connected between the rectifier circuit and the smoothing capacitor in series and is configured to limit an output current value of the rectifier circuit during a voltage input from the voltage source to an output current value higher than an output current value of the rectifier circuit during a steady operation.
Abstract translation: 根据一个实施例，电源装置包括整流器电路，平滑电容器和正常型晶体管。 整流电路被配置为对从电压源提供的交流电进行整流。 平滑电容器由整流电路输出的输出电流充电。 正常型晶体管串联连接在整流电路和平滑电容器之间，被配置为在电压源的电压输入期间将整流电路的输出电流值限制为高于输出电流值的输出电流值 整流电路稳定运行。
-
公开(公告)号：US20140285101A1
公开(公告)日：2014-09-25
申请号：US14018742
申请日：2013-09-05
Applicant: Toshiba Lighting & Technology Corporation
Inventor： Noriyuki Kitamura , Hiroshi Akahoshi , Hirokazu Otake , Yuji Takahashi
IPC: H05B33/08
CPC classification number: H05B33/08 , H05B33/0815 , Y02B20/347
Abstract: According to one embodiment, a lighting light source including a current control element and a voltage-dividing resistor is provided. The current control element has a first main electrode, a second main electrode series-connected with respect to a lighting light source, and a first control electrode for controlling a current flowing between the first main electrode and the second main electrode, and controls a current supplied to the lighting light source. The voltage-dividing resistor is parallel-connected with respect to the lighting light source and connected to the first control electrode, and inputs a voltage obtained by division of a voltage of the lighting light source to the first control electrode.
Abstract translation: 根据一个实施例，提供了包括电流控制元件和分压电阻器的照明光源。 电流控制元件具有第一主电极，与照明光源串联连接的第二主电极和用于控制在第一主电极和第二主电极之间流动的电流的第一控制电极，并且控制电流 提供给照明光源。 分压电阻器相对于照明光源并联连接到第一控制电极，并将通过将照明光源的电压分压而获得的电压输入到第一控制电极。
-
公开(公告)号：US20150085544A1
公开(公告)日：2015-03-26
申请号：US14210500
申请日：2014-03-14
Applicant: Toshiba Lighting & Technology Corporation
Inventor： Hirokazu Otake , Noriyuki Kitamura , Yuji Takahashi , Masato Ishikawa , Yohei Miura
IPC: H02M7/06
CPC classification number: H02M7/08 , H01L21/8258 , H01L24/48 , H01L25/18 , H01L27/0814 , H01L2224/4813 , H01L2224/4814 , H01L2224/48149 , H01L2924/10253 , H01L2924/1033 , H01L2924/13091 , H02H3/18 , H02M1/32 , H02M1/4225 , H02M2001/327 , H05B33/0818 , Y02B70/126 , H01L2924/00
Abstract: A rectifying circuit according to an embodiment includes a first rectifying portion and a second rectifying portion. The first rectifying portion has a positive temperature coefficient. The second rectifying portion has a negative temperature coefficient, is connected in parallel to the first rectifying portion, and has a forward voltage-forward current curve intersecting a forward voltage-forward current curve of the first rectifying portion.
Abstract translation: 根据实施例的整流电路包括第一整流部分和第二整流部分。 第一整流部具有正温度系数。 第二整流部具有负温度系数，与第一整流部并联连接，并具有与第一整流部的正向电压 - 正向电流曲线相交的正向电压 - 正向电流曲线。
-
公开(公告)号：US20140285089A1
公开(公告)日：2014-09-25
申请号：US14016515
申请日：2013-09-03
Applicant: Toshiba Lighting & Technology Corporation
Inventor： Hiroshi Akahoshi , Noriyuki Kitamura , Hirokazu Otake , Yuji Takahashi
CPC classification number: H05B33/089 , H02M1/32 , H02M3/158 , H05B33/0815 , H05B33/0845 , Y02B20/341 , Y02B20/347
Abstract: According to one embodiment, a power supply circuit includes: a DC-DC converter which converts a first DC voltage supplied from a power supply flow path into a second DC voltage having a different absolute value, to supply the voltage to a DC load; and an overcurrent protection unit which is electrically connected to an end portion of the DC load on a low potential side, and performs feedback control of the DC-DC converter based on current which flows to the DC load. The DC-DC converter includes a normally-on type switching element. The overcurrent protection unit is electrically connected to the third electrode. When the current which flows to the DC load is greater than a reference value, the overcurrent protection unit changes the state of the switching element from the first state to the second state by decreasing the potential of the third electrode.
Abstract translation: 根据一个实施例，电源电路包括：DC-DC转换器，其将从电源流路提供的第一DC电压转换为具有不同绝对值的第二DC电压，以将电压提供给DC负载; 以及在低电位侧电连接到DC负载的端部的过电流保护单元，并且基于流向DC负载的电流进行DC-DC转换器的反馈控制。 DC-DC转换器包括常开型开关元件。 过电流保护单元电连接到第三电极。 当流过DC负载的电流大于参考值时，过电流保护单元通过降低第三电极的电位将开关元件的状态从第一状态改变到第二状态。
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.017 seconds)
