-
公开(公告)号：US12131971B2
公开(公告)日：2024-10-29
申请号：US17629054
申请日：2019-12-24
发明人： Shohei Maeda , Yoichi Makimoto
IPC分类号： H01L23/31 , H01L23/13 , H01L23/498 , H02M7/00
CPC分类号： H01L23/3107 , H01L23/13 , H01L23/49838 , H02M7/003
摘要： A semiconductor module includes a case accommodating a semiconductor element inside and being entirely molded by a resin, a first terminal placed on a top portion of the case and being a terminal to which a bus bar being a flat and elongated metal conductor is to be attached, a second terminal provided on the top portion of the case and being adjacent to the first terminal, and a rib provided between the first terminal and the second terminal. The rib includes a protrusion protruding toward the bus bar.
-
-
公开(公告)号：USD916039S1
公开(公告)日：2021-04-13
申请号：US29728654
申请日：2020-03-20
设计人： Tomohiro Yamanaka , Yoichi Makimoto
-
公开(公告)号：US10086463B2
公开(公告)日：2018-10-02
申请号：US15576411
申请日：2016-06-09
发明人： Yuji Ikejiri , Takeshi Morimoto
IPC分类号： B23K9/073 , H02M7/5387 , H02M3/335
摘要： An arc welding apparatus includes: a switching device connected to both terminals of a secondary winding of a transformer whose opposite primary winding serves as a smoothing reactor on an inverter's secondary side; an output voltage detector detecting an output voltage between a welding wire and a workpiece; and a control circuit controlling the switching device and a circuit on the inverter's primary side. The control circuit includes: a first control portion that turns off the circuit on the inverter's primary side and turns on the switching device when the output voltage detected by the output voltage detector rises to a first predetermined voltage; and a second control portion that turns on the circuit on the inverter's primary side and turns off the switching device after a lapse of a predetermined time after the switching device is turned on.
-
公开(公告)号：US20150285255A1
公开(公告)日：2015-10-08
申请号：US14438866
申请日：2012-10-30
CPC分类号： F04D25/06 , F04D19/002 , F04D25/068 , F04D27/004 , F04D29/5813 , H02M7/003 , H05K7/206 , H05K7/20918
摘要： A fan control unit includes: an internal fan that is provided inside a casing, in which an inverter containing a switching element is disposed, and generates an air current for air-cooling inside the casing; a heat sink which is exposed inside a duct provided on the casing and to which the switching element is attached, the duct being provided with an air-intake port and an air-exhaust port; an air-intake fan disposed at the air-intake port of the duct; an air-exhaust fan disposed at the air-exhaust port of the duct; and a control section performing a control such that the air-exhaust fan is turned on earlier than the air-intake fan and the internal fan as output power increases, and that the internal fan and the air-intake fan are turned off earlier than the air-exhaust fan as output power decreases from a state in which all the fans are kept turned on.
摘要翻译： 风扇控制单元包括：内部风扇，设置在壳体内部，其中设置有包含开关元件的逆变器，并且在壳体内产生用于空气冷却的气流; 散热器，其暴露在设置在所述壳体上并且所述开关元件附接到的管道内，所述管道设置有进气口和排气口; 设置在所述导管的所述进气口的进气风扇; 设置在所述管道的排气口的排气风扇; 以及执行控制的控制部分，使得排气风扇比进气风扇和输出功率增加的内部风扇开启，并且内部风扇和进气风扇早于 作为输出功率的排风扇从全部风扇保持接通的状态下降。
-
公开(公告)号：US11923261B2
公开(公告)日：2024-03-05
申请号：US17487674
申请日：2021-09-28
发明人： Koutarou Maeda
IPC分类号： H01L23/28 , H01L21/56 , H01L23/053 , H01L23/31
CPC分类号： H01L23/3107 , H01L21/565 , H01L23/053
摘要： A semiconductor chip is provided on a semiconductor circuit base on one surface of an insulating substrate. A reinforcement and balance base is provided on the one surface of the insulating substrate spaced to the semiconductor circuit base. The insulating substrate 4, the semiconductor circuit base, the semiconductor chip, and the reinforcement and balance base are sealed into a resin-molded sealing body. The sealing body has resin non-adhering portions.
-
公开(公告)号：US20230411959A1
公开(公告)日：2023-12-21
申请号：US18039975
申请日：2021-01-27
发明人： Atsushi MAKITANI , Taro UENOYAMA
IPC分类号： H02J1/10
CPC分类号： H02J1/106
摘要： Provided is a power supply system in which two or more power supply units are optionally connected and used in any operation mode. A power supply system 100 includes two or more power supply units 10 to 13, the power supply units 10 to 13 cooperating to supply DC power to a shared load 22, the power supply units 10 to 13 including a power supply main circuit 30 that converts AC power inputted from the outside into DC power; a control unit 36 that controls the power supply main circuit 30; a pair of synchronous terminals Z1, Z2 respectively connected to a pair of synchronous signal lines ZCL; a transmission unit 35 that outputs an error signal ER by establishing conduction between the pair of synchronous signal lines ZCL upon detection of an abnormality; and a reception unit 35 that detects a conductive state between the pair of synchronous signal lines ZCL and that receives the error signal ER, wherein the power supply main circuit 30 stops outputting based on timing of receiving the error signal ER.
-
公开(公告)号：US11791244B2
公开(公告)日：2023-10-17
申请号：US17603254
申请日：2019-12-23
发明人： Hiroko Mori
IPC分类号： H01L23/492 , H01R12/55
CPC分类号： H01L23/492 , H01R12/55
摘要： A semiconductor-module external terminal includes a bottom portion to be soldered and a terminal body vertically bent from the bottom portion, and the terminal body includes a first groove on a left end side and a second groove on a right end side of a bending portion which is bent immediately above the bottom portion, and the first groove and the second groove are asymmetrical with respect to a center line passing the terminal body in a vertical direction.
-
公开(公告)号：US11532998B2
公开(公告)日：2022-12-20
申请号：US16739289
申请日：2020-01-10
发明人： Naoki Nishimura , Masashi Fukai
IPC分类号： H02M7/5395 , G01R31/26 , H01L23/58 , H02M1/32 , H02M7/5387
摘要： A power supply circuit for measuring transient thermal resistances includes an inverter circuit provided on a primary side of a transformer and controlled by a PWM signal, a rectifier circuit provided on a secondary side of the transformer and including a DC reactor, and a control circuit controlling the PWM signal so as to output a pulsed output current from the rectifier circuit to a semiconductor device to be measured. The control circuit sets a first PWM frequency at rising timing of the output current, and sets a second PWM frequency when a predetermined time t1 elapses from the rising timing of the output current. The control circuit sets the first PWM frequency higher than the second PWM frequency.
-
公开(公告)号：US09863428B2
公开(公告)日：2018-01-09
申请号：US14438866
申请日：2012-10-30
CPC分类号： F04D25/06 , F04D19/002 , F04D25/068 , F04D27/004 , F04D29/5813 , H02M7/003 , H05K7/206 , H05K7/20918
摘要： A fan control unit includes: an internal fan that is provided inside a casing, in which an inverter containing a switching element is disposed, and generates an air current for air-cooling inside the casing; a heat sink which is exposed inside a duct provided on the casing and to which the switching element is attached, the duct being provided with an air-intake port and an air-exhaust port; an air-intake fan disposed at the air-intake port of the duct; an air-exhaust fan disposed at the air-exhaust port of the duct; and a control section performing a control such that the air-exhaust fan is turned on earlier than the air-intake fan and the internal fan as output power increases, and that the internal fan and the air-intake fan are turned off earlier than the air-exhaust fan as output power decreases from a state in which all the fans are kept turned on.
-
-
-
-
-
-
-
-
-
搜索结果
31 条记录 (耗时 0.016 秒)
