专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP4425777A1 POWER CONVERSION DEVICE, MOTOR DRIVE DEVICE, AND REFRIGERATION CYCLE APPLICATION APPARATUS 审中-公开
公开(公告)号：EP4425777A1
公开(公告)日：2024-09-04
申请号：EP21962419.4
申请日：2021-10-28
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： SHIMIZU, Yuichi , HATAKEYAMA, Kazunori
IPC分类号： H02M3/155 , H02M7/12
CPC分类号： H02M7/12 , H02M3/155
摘要： An electric power conversion device (100) is a device (100) for supplying an output voltage to a load from output terminals (41, 42), and includes a rectifier circuit (20) to rectify an AC voltage and to output the rectified voltage, a booster circuit (30) to supply the output voltage to the output terminals (41, 42), a voltage detector (40) to output a voltage detection value (Vdc) indicating the output voltage, and a controller (60). The booster circuit (30) includes a reactor (31) connected to the rectifier circuit (20), a smoothing capacitor (33) to smooth the rectified voltage, thereby generating the output voltage, and a switching element (32) to short-circuit the reactor (31). The controller (60) controls a conduction period of the switching element (32) based on the voltage detection value (Vdc) so that a first pulsation frequency which is a frequency of pulsation of the output voltage is higher than a second pulsation frequency which is a frequency of pulsation of the rectified voltage. A refrigeration cycle application apparatus includes the electric power conversion device (100).

2. 发明授权

EP1978629B1 RECTIFYING CIRCUIT, AND THREE-PHASE RECTIFYING CIRCUIT 有权
公开(公告)号：EP1978629B1
公开(公告)日：2018-10-03
申请号：EP06834695.6
申请日：2006-12-14
申请人： DAIKIN INDUSTRIES, LTD.
发明人： OGUCHI, Kuniomi , SAKAKIBARA, Kenichi, c/o Shiga Plant
IPC分类号： H02M1/42 , H02M3/156 , H02M5/14 , H02M7/08 , H02M7/12
CPC分类号： H02M7/08 , H02M1/4216 , H02M1/4225 , H02M3/156 , H02M5/14 , H02M7/12 , Y02B70/126
摘要： According to the present invention, currents flowing in a transformer for outputting plural sets of three-phase currents given to a multiple rectifier circuit are easily made close to sinusoidal waves. Choppers (41, 42) are provided respectively in the output stages of two diode bridges (31, 32), and their output sides are connected in parallel to a smoothing capacitor (5). By controlling the operations of the two choppers (41, 42), the currents which are allowed to be inputted to the diode bridges (31, 32) are made triangular waves of mutually opposite phases, or middle-phase waveforms of three phases.

3. 发明公开

EP3365969A1 POWER MODULES WITH PROGRAMMED VIRTUAL RESISTANCE 有权
公开(公告)号：EP3365969A1
公开(公告)日：2018-08-29
申请号：EP16823163.7
申请日：2016-11-18
申请人： GE Energy Power Conversion Technology Limited
发明人： RAMAMURTHY, Shyam Sunder , LEE, Christopher Joseph , SOLOMON, Luke Anthony
IPC分类号： H02M7/12 , H02M1/12 , H02M7/483 , H02M7/493
CPC分类号： H02M7/04 , H02M1/08 , H02M1/12 , H02M7/12 , H02M7/493 , H02M2001/0025 , H02M2001/0048
摘要： A method, apparatus, and system to control a multi-phase converter having at least one power channel with a plurality of power modules, and involves detecting the voltage and the current of the power modules, calculating a command voltage based on a product of a programmed virtual resistance and the detected current, and transmitting a command voltage signal to the power modules based on the calculated command voltage.

4. 发明公开

EP3211779A4 ELECTRIC POWER CONVERSION DEVICE 有权
公开(公告)号：EP3211779A4
公开(公告)日：2018-05-16
申请号：EP15852833
申请日：2015-09-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKAHARA TAKAAKI , MURAKAMI SATOSHI , KONDO RYOTA , YAMADA MASAKI , UEHARA NAOHISA
IPC分类号： H02M3/28 , H02M7/12
CPC分类号： H02M3/33546 , H02M1/08 , H02M1/42 , H02M3/28 , H02M3/33561 , H02M3/33584 , H02M3/3376 , H02M7/12 , H02M7/487 , H02M2001/0009
摘要： This electric power conversion device includes a transformer (6) composed of three or more windings magnetically coupled with each other, wherein power supply sources (1, 11) are connected to at least two windings (6a, 6b) via switching circuits (4, 8), a load is connected to at least one winding (6c), and a control circuit (100) temporally divides, within one switching period, a total ON time during which power is supplied, in accordance with the number of the power supply sources (1, 11) to supply power, the one switching period being the minimum repetitive unit during which power is supplied alternately. The control circuit (100) allocates the divided ON times to the respective switching circuits (4, 8), and the switching circuits (4, 8) supply power from the power supply sources (1, 11) to the load side during the allocated ON times, respectively.

5. 发明公开

EP3236718A4 RADIO FREQUENCY POWER SOURCE DEVICE, AND POWER SOURCE FOR DUAL CATHODES 有权
公开(公告)号：EP3236718A4
公开(公告)日：2018-03-14
申请号：EP15881133
申请日：2015-02-20
申请人： KYOSAN ELECTRIC MFG
发明人： YUZURIHARA ITSUO , KODAMA SHINICHI , ADACHI TOSHIYUKI
IPC分类号： H01J37/32 , C23C14/34 , H01L21/203 , H01L21/31 , H02M5/08 , H02M7/12 , H05H1/46
CPC分类号： H01L21/203 , C23C14/34 , H01J37/32174 , H01L21/31 , H02M5/08 , H02M7/12 , H05H1/46 , H05H2001/4682
摘要： In radio frequency power source devices for delivering AC voltage outputs in antiphase with each other, having a configuration to divide the voltage output from a radio frequency output circuit into two, it is not possible to perform switching as appropriate, between different voltage values, high voltage and low voltage, resulting in that the voltage at an output end is reduced to have a half peak value of the voltage output of the radio frequency output circuit. There is provided a radio frequency power source device configured to change a voltage ratio between two output end voltages, by switching a connection state of a voltage divider that divides the radio frequency voltage, in such a manner that the radio frequency voltage is divided into voltage outputs in antiphase with each other with respect to ground potential, and high voltage and low voltage are delivered in switching manner. Switching of the connection state in the voltage divider enables selective delivery of voltage having different values, high voltage or low voltage, and by selecting and delivering high voltage for the time high voltage is required, reduction of the voltage output from the radio frequency output circuit is prevented.

6. 发明公开

EP3264581A1 SEMICONDUCTOR DEVICE FOR CONTROLLING POWER SOURCE 审中-公开
标题翻译：用于控制电源的半导体器件
公开(公告)号：EP3264581A1
公开(公告)日：2018-01-03
申请号：EP16755346.0
申请日：2016-02-19
申请人： Mitsumi Electric Co., Ltd.
发明人： MATSUDA, Hiroki , MURATA, Yukio
IPC分类号： H02M3/28
CPC分类号： H02M3/28 , G06F1/32 , H02M1/32 , H02M3/33515 , H02M3/33523 , H02M7/06 , H02M7/12 , H02M2001/0006 , H02M2001/0032 , Y02B70/16
摘要： The problem addressed by the present invention is to detect short-circuiting in an auxiliary winding by means of a semiconductor device for controlling a power source to enable halting switching operations of the power source device. This semiconductor device for controlling a power source is provided with: a high-voltage input start-up terminal into which an AC input voltage is inputted; a power source terminal into which is inputted a voltage induced by the auxiliary winding of a transformer; a switch means which is provided between the high-voltage input start-up terminal and the power source terminal; a power source voltage control circuit which monitors the voltage of the power source terminal and performs control to turn ON the switch means when said voltage is less than or equal to a first voltage value and to turn OFF the switch means when said value has reached a second voltage value; a state control circuit which controls switching ON and OFF the switch means on the basis of the voltage of the power source terminal such that the voltage of the power source terminal is within a voltage range narrower than the voltage range between the first voltage value and the second voltage value; and an auxiliary winding short-circuit detection circuit which detects short-circuits in the auxiliary winding. If a short-circuit is detected in the auxiliary winding, then operation of the ON/OFF control signal generation circuit is stopped and a state control circuit is activated.
摘要翻译：本发明解决的问题是借助于用于控制电源的半导体器件来检测辅助绕组中的短路，从而使得能够停止电源装置的开关操作。该用于控制电源的半导体器件设置有：高压输入启动端子，AC输入电压输入到该高压输入启动端子; 输入由变压器的辅助绕组感应的电压的电源端子; 开关装置，其设置在高压输入启动端子与电源端子之间; 电源电压控制电路，该电源电压控制电路监视电源端子的电压，并且当所述电压小于或等于第一电压值时执行控制以接通开关装置，并且当所述值达到a时切断开关装置第二电压值; 状态控制电路，其基于电源端子的电压来控制开关装置的接通和断开，使得电源端子的电压在比第一电压值和第二电压值之间的电压范围窄的电压范围内第二电压值; 以及检测辅助绕组短路的辅助绕组短路检测电路。如果在辅助绕组中检测到短路，则ON / OFF控制信号发生电路的操作停止，并且状态控制电路被激活。

7. 发明授权

EP2592746B1 RECTIFIER DEVICE 失效
标题翻译：整流器装置
公开(公告)号：EP2592746B1
公开(公告)日：2017-09-13
申请号：EP11803343.0
申请日：2011-07-07
申请人： Panasonic Corporation
发明人： YOSHIDA, Izumi , DOYAMA, Yoshiaki , KYOGOKU, Akihiro , KAWASAKI, Tomohiro
IPC分类号： H02M7/12 , H02M1/42
CPC分类号： H02M1/4208 , H02M7/12 , Y02B70/126

8. 发明公开

EP3200337A1 POWER CONVERSION DEVICE 有权
标题翻译：电力转换装置
公开(公告)号：EP3200337A1
公开(公告)日：2017-08-02
申请号：EP15843810.1
申请日：2015-09-24
申请人： Daikin Industries, Ltd.
发明人： SAKAKIBARA Kenichi
IPC分类号： H02M7/12 , H02M5/458 , H02M7/48
CPC分类号： H02M7/48 , F03G7/08 , H02J3/36 , H02M1/42 , H02M1/4225 , H02M5/458 , H02M7/12 , H02P2201/09
摘要： An object is to provide a technique for increasing the voltage across a DC link without increasing the power covered by a power buffer circuit. A discharge duty (dc) that is a duty at which a switch (Sc) is conductive takes a value ((Vm/Vc)cos 2 (ωt)) obtained by dividing a product of a crest value (Vm) of a single-phase AC voltage (Vin) and a square (cos 2 (ωt)) of a cosine value of a phase (ωt) of the single-phase AC voltage (Vin) by a both-end voltage (Vc) across a capacitor (C4). A sum of a product of a rectifying duty (drec) that is a duty at which a converter (3) is conductive and a rectified voltage (Vrec) output from the converter (3) and a product of the both-end voltage (Vc) and the discharge duty (dc) varies in a period that is a half of the period of the single-phase AC voltage (Vin).
摘要翻译：一个目的是提供一种用于增加直流链路两端的电压而不增加功率缓冲电路所覆盖的功率的技术。作为开关（Sc）导通时的占空比的放电占空比（dc）采用通过将单相的峰值（Vm）乘积而得到的值（（Vm / Vc）cos2（ωt）交流电压（Vin）和单相交流电压（Vin）的相位（ωt）的余弦值的平方（cos2（ωt））除以电容器（C4）两端的两端电压（Vc）。作为转换器（3）导通的占空比的整流占空比（drec）与从转换器（3）输出的整流电压（Vrec）的乘积与两端电压（Vc）的乘积之和），放电占空比（dc）在单相交流电压（Vin）的一半的期间内变化。

9. 发明公开

EP3171502A1 DIRECT-TYPE AC POWER CONVERSION DEVICE 有权
标题翻译：直接式交流电力转换装置
公开(公告)号：EP3171502A1
公开(公告)日：2017-05-24
申请号：EP15821840.4
申请日：2015-07-21
申请人： Daikin Industries, Ltd.
发明人： YAMASHITA, Naoya , MAEDA, Toshiyuki
IPC分类号： H02M7/12 , H02M7/48
CPC分类号： H02P27/08 , H02M5/458 , H02M7/12 , H02M7/48 , H02P6/14
摘要： In a direct power converter including a boost chopper, an average value or an effective value of a current flowing in an inductor of the boost chopper is reduced. When a rectifying duty (dr), a discharge duty (dc), a voltage between both ends (Vc) of a capacitor (34), and a rectified voltage (Vrec) of an AC voltage (Vin) are introduced, a virtual DC link voltage (Vdc) in an inverter (6) is expressed by dc·Vc + dr·Vrec. The discharge duty (dc) is a time ratio at which a switch (41) is conductive. The rectifying duty (dr) has a value obtained by subtracting the discharge duty (dc) and a zero voltage duty (dz) from 1. The zero voltage duty (dz) is a time ratio at which the inverter (6) adopts a zero voltage vector irrespective of the magnitude of a voltage output from the inverter (6). In a boost chopper (3), the capacitor (34) is charged during a part of a period during which the virtual DC link voltage (Vdc) is greater than the rectified voltage (Vrec).
摘要翻译：在包括升压斩波器的直接功率转换器中，在升压斩波器的电感器中流动的电流的平均值或有效值减小。当引入整流负载（dr），放电占空比（dc），电容器（34）的两端电压（Vc）和交流电压（Vin）的整流电压（Vrec）时，虚拟DC 逆变器（6）中的链路电压（Vdc）由dc·Vc + dr·Vrec表示。放电占空比（dc）是开关（41）导通的时间比率。整流占空比（dr）具有通过从1减去放电占空比（dc）和零电压占空比（dz）获得的值。零电压占空比（dz）是逆变器（6）采用零而不管从逆变器（6）输出的电压的大小如何。在升压斩波器（3）中，电容器（34）在虚拟直流链路电压（Vdc）大于整流电压（Vrec）的时间段的一部分期间被充电。

10. 发明公开

EP3160001A1 SUPPLYING ELECTRICAL POWER 有权
标题翻译：提供电力
公开(公告)号：EP3160001A1
公开(公告)日：2017-04-26
申请号：EP15191172.4
申请日：2015-10-23
申请人： Vestel Elektronik Sanayi ve Ticaret A.S.
发明人： KIRISKEN, Barbaros
IPC分类号： H02J7/00
CPC分类号： H02J7/007 , H02J2007/0062 , H02M7/12 , H02M2001/0025 , H02M2001/007
摘要： The present invention provides an electrical power supply device (100; 200) comprising a controllable power converter (101; 201), with a power input (102; 202) which is connectable to a power source and with a power output (103; 203), wherein the power converter (101; 201) is configured to controllably provide electrical power (Pout) at one of a number of different electrical voltage levels (V1, V2) via the power output (103; 203), and a controller (104; 204), which is coupled to the power output (103; 203) and configured to monitor the voltage (Vout) at the power output (103; 203), wherein if the monitored voltage (Vout) drops below a predetermined voltage threshold (Vt1, Vt2) for the present voltage level (V1, V2) the controller (104; 204) is configured to control the power converter (101; 201) to provide the electrical power (Pout) at the next higher voltage level (V1, V2). Furthermore, the present invention provides a respective method.
摘要翻译：本发明提供了一种包括可控功率转换器（101; 201）的电源装置（100; 200），其具有可连接到电源和功率输出（103; 203）的功率输入端），其中所述功率转换器（101; 201）被配置为经由所述功率输出（103; 203）在多个不同的电压电平（V1，V2）之一处可控地提供电功率（Pout），以及控制器（103; 203），并且被配置为监测在所述功率输出端（103; 203）处的电压（Vout），其中如果所监测的电压（Vout）下降到低于预定电压阈值（V1，V2），所述控制器（104; 204）被配置为控制所述功率转换器（101; 201）以在下一个较高电压电平（V1; V2）处提供电功率，V2）。此外，本发明提供了相应的方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式