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1. 发明专利

JP2013009476A Electric power conversion apparatus 审中-公开
标题翻译：电力转换装置
公开(公告)号：JP2013009476A
公开(公告)日：2013-01-10
申请号：JP2011139155
申请日：2011-06-23
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAWAKAMI TOMOYUKI
IPC分类号： H02M3/155 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide an electric power conversion apparatus that shares the discharge circuit of a smoothing capacitor provided with an inverter circuit with a booster circuit composing an electric power converter to achieve downsizing of the apparatus and to promote improvement of electric power conversion efficiency.SOLUTION: An electric power conversion apparatus performing DC/AC conversion includes: an input capacitor Cin for receiving DC power obtained from a DC power supply; a booster circuit for storing the DC voltage of the input capacitor Cin in an intermediate capacitor Cf to perform boosting operation; and a shared discharge circuit having smoothing capacitors Cp and Cn for smoothing the boosted DC voltage to discharge electric charges stored in each input capacitor Cin, intermediate capacitor Cf, and smoothing capacitors Cp and Cn.
摘要翻译：解决的问题：提供一种电力转换装置，其与构成电力转换器的升压电路共用设置有逆变器电路的平滑电容器的放电电路，以实现装置的小型化并且促进电力的改善电源转换效率。执行DC / AC转换的电力转换装置包括：用于接收从DC电源获得的DC电力的输入电容器Cin; 用于将输入电容器Cin的DC电压存储在中间电容器Cf中以进行升压操作的升压电路; 以及具有平滑电容器Cp和Cn的平滑电容器Cp和Cn的共享放电电路，用于平滑升压的DC电压以放电存储在每个输入电容器Cin，中间电容器Cf和平滑电容器Cp和Cn中的电荷。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2011114964A Power converter 审中-公开
标题翻译：电源转换器
公开(公告)号：JP2011114964A
公开(公告)日：2011-06-09
申请号：JP2009269774
申请日：2009-11-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAWAKAMI TOMOYUKI , IZUMI KIKUO , KUBOYAMA YU , IWATA AKIHIKO
IPC分类号： H02M3/155
摘要： PROBLEM TO BE SOLVED: To stably obtain a desired output voltage with respect to a wide-range input voltage while preventing an overcurrent from flowing in a power converter for executing DC/DC conversion. SOLUTION: A plurality of single-phase inverters 20a-20d are connected in series to the post stage of a DC power supply 1. The post stage is provided with a smoothing capacitor 6 connected via a rectifying diode 5 and a short-circuiting switch 4 for bypassing the smoothing capacitor 6. In a control circuit 7, a plurality of control modes comprise combinations of output control of each single-phase inverter 20a-20d and on/off control of the short-circuiting switch 4, the plurality of control modes are switched according to a voltage of the DC power supply 1, and a time ratio of drive signals 7a, 7b is adjusted on the basis of a deviation between an output voltage Vo and a command value, thereby allowing the output voltage Vo to moderately follow the command value. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了稳定地获得相对于宽范围输入电压的期望的输出电压，同时防止在用于执行DC / DC转换的功率转换器中的过电流流动。解决方案：多个单相逆变器20a-20d串联连接到直流电源1的后级。后级设有平滑电容器6，该平滑电容器6通过整流二极管5和短路在控制电路7中，多个控制模式包括每个单相逆变器20a-20d的输出控制和短路开关4的接通/断开控制的组合，多个根据直流电源1的电压切换控制模式，并且基于输出电压Vo与指令值之间的偏差来调节驱动信号7a，7b的时间比，从而允许输出电压Vo 适度地遵循命令值。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2009232629A Surge absorbing circuit 有权
标题翻译：浪涌吸收电路
公开(公告)号：JP2009232629A
公开(公告)日：2009-10-08
申请号：JP2008077067
申请日：2008-03-25
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUJIWARA KENJI , IWATA AKIHIKO , ITO HIROSHI , KAWAKAMI TOMOYUKI
IPC分类号： H02H9/04 , H01T4/16 , H02H9/06
摘要： PROBLEM TO BE SOLVED: To provide a surge absorbing circuit which is reduced in size over the entire circuit, suppresses a higher harmonic leak current by keeping a high impedance characteristic over the whole frequency region, operates at a voltage smaller than an insulation test voltage when a lightning surge is applied and does not operate during an insulation test.
SOLUTION: The surge absorbing circuit is equipped with a first surge absorber 1 and a second surge absorber 2 which are connected in series; a first resistor 5 connected in parallel to the first surge absorber 1; a second resistor 6 connected in parallel to the second surge absorber 2; and a capacitor 7 connected in parallel to the second resistor 6.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供在整个电路上尺寸减小的浪涌吸收电路，通过在整个频率区域保持高阻抗特性来抑制较高的谐波泄漏电流，在小于绝缘的电压下工作在施加雷电浪涌时测试电压，并且在绝缘测试期间不工作。浪涌吸收电路配备有串联连接的第一浪涌吸收器1和第二浪涌吸收器2; 与第一浪涌吸收器1并联连接的第一电阻器5; 与第二浪涌吸收器2并联连接的第二电阻器6; 以及与第二电阻器6并联连接的电容器7.版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2004319114A Induction heating cooking device and its control method 有权
公开(公告)号：JP2004319114A
公开(公告)日：2004-11-11
申请号：JP2003107748
申请日：2003-04-11
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUGA IKURO , KAWAKAMI TOMOYUKI
IPC分类号： H05B6/12
摘要： PROBLEM TO BE SOLVED: To increase the maximum power of an induction heating cooker. SOLUTION: This induction heating cooker is provided with: a rectification circuit for converting an alternating current into a direct current; a first switching element connected to the high potential side of the D.C. output outputted by the rectification circuit; a second switching element connected to the low potential side of the D.C. output outputted by the rectification circuit in series to the first switching element; a load circuit having a heating coil and a resonant capacitor and connected in parallel with the second switching element; a control circuit for calculating input power; and an inverter driving circuit for generating a drive signal for changing duties of the first and second switching elements based on the calculated input power. The inverter driving circuit is characteristically capable of setting the maximum on-duty of the first switching element to a value exceeding 50%. COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2011061925A Power converter 审中-公开
标题翻译：电源转换器
公开(公告)号：JP2011061925A
公开(公告)日：2011-03-24
申请号：JP2009206959
申请日：2009-09-08
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAWAKAMI TOMOYUKI , IWATA AKIHIKO
IPC分类号： H02M3/07
摘要： PROBLEM TO BE SOLVED: To reduce power loss and noise and besides to downsize the structure of a device, in a power converter which performs DC/DC conversion. SOLUTION: A plurality of single-phase inverters 20a, 20b, 20c, and 30d are connected in series to the latter part of a DC power source 1, and its latter part is equipped with a smoothing capacitor 6 which is connected via a smoothing diode 5, and a switch 4 for short-circuit which bypasses the smoothing capacitor 6. For the output of each of single-phase inverters 20a, 20b, 20c, and 30d, its control mode is switched according to the voltage of the DC power source 1, and in case that the output of each of single-phase inverters 20a, 20b, and 20c becomes zero in this control mode, all the semiconductor switch elements 21-24, 31-34, and 41-44 in the single-phase inverters are switched on to perform DC/DC conversion, making use of the charge/discharge of the DC power in the inverter circuit 20. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了降低功率损耗和噪声，以及在执行DC / DC转换的功率转换器中，以及小型化设备的结构。解决方案：多个单相逆变器20a，20b，20c和30d串联连接到直流电源1的后半部分，后一部分装有平滑电容器6，该平滑电容器6经过平滑二极管5和旁路滤波电容器6的短路开关4.对于各相逆变器20a，20b，20c，30d的输出，其控制模式根据直流电源1，并且在该控制模式中，在单相逆变器20a，20b和20c中的每一个的输出为零的情况下，所有半导体开关元件21-24,31-34和41-44中的所有半导体开关元件使用逆变器电路20中的直流电源的充放电，单相逆变器被接通以执行DC / DC转换。（C）2011，JPO和INPIT

6. 发明专利

JP2011055593A Power converter 有权
标题翻译：电源转换器
公开(公告)号：JP2011055593A
公开(公告)日：2011-03-17
申请号：JP2009199946
申请日：2009-08-31
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： IWATA AKIHIKO , KAWAKAMI TOMOYUKI
IPC分类号： H02M3/07
摘要： PROBLEM TO BE SOLVED: To reduce power loss and noise, facilitate reduction in size and weight of device configuration, and obtain a desired output voltage stably to a wide range of input voltage, in a power converter which performs DC/DC conversion. SOLUTION: The power converter includes a smoothing capacitor 6 which is connected via a rectifying diode 5 to the rear part of a plurality of single-phase inverters 20a and 20b connected in series to the rear part of a DC power source 1, and a switch 4 for short-circuit which bypasses the smoothing capacitor 6. Then, a plurality of control modes including combinations of output control of each of single-phase inverters 20a and 20b and ON-OFF control of a switch for short-circuit, are set in advance. A boosting ratio is selected by switching and using each control mode according to the voltage of a DC power source 1. DC/DC conversion is performed by utilizing charging/discharging of the DC power of each of the single-phase inverters 20a and 20b. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题为了降低功率损耗和噪声，在执行DC / DC转换的功率转换器中，便于减小器件配置的尺寸和重量，并且在宽范围的输入电压下稳定地获得期望的输出电压。解决方案：功率转换器包括平滑电容器6，其经由整流二极管5连接到与DC电源1的后部串联连接的多个单相逆变器20a和20b的后部，以及绕过平滑电容器6的短路开关4.然后，包括单相逆变器20a和20b中的每一个的输出控制的组合的多个控制模式和用于短路的开关的ON-OFF控制，提前设定。通过根据直流电源1的电压切换和使用每个控制模式来选择升压比。通过利用每个单相逆变器20a和20b的直流电力的充电/放电来执行DC / DC转换。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2009153316A Power conversion apparatus 有权
标题翻译：功率转换装置
公开(公告)号：JP2009153316A
公开(公告)日：2009-07-09
申请号：JP2007329971
申请日：2007-12-21
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUJIWARA KENJI , IWATA AKIHIKO , KAWAKAMI TOMOYUKI , ITO HIROSHI
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To obtain power conversion apparatus which prevents the breakage of a semiconductor switching element by effectively suppressing a surge with a countermeasure that enables the miniaturization and the lower loss of itself. SOLUTION: In the power conversion apparatus, which includes an output polarity fixed arm, in which two arms with semiconductor switching elements are connected in series between DC lines and which is switched when the output polarity switches from positive to negative or from negative to positive, and a PWM switching arm, in which two arms with semiconductor switching elements are connected in series between the DC lines and which regulates an output value by being PWM-switched, and which converts power between DC and AC, using each series junction as an AC terminal, capacitors are connected severally between the drain terminals and the source terminals of the individual semiconductor switching elements of the output polarity fixed arm. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：获得能够通过有效地抑制浪涌而防止半导体开关元件断裂的电力转换装置，其具有能够实现小型化和较低自身损耗的对策。解决方案：在包括输出极性固定臂的电力转换装置中，其中具有半导体开关元件的两个臂串联在DC线之间，并且当输出极性从正极转换为负极或从负极切换时切换和PWM开关臂，其中具有半导体开关元件的两个臂串联连接在DC线之间，并且通过PWM切换来调节输出值，并且使用每个串联结转换DC和AC之间的功率作为AC端子，电容器分别连接在输出极性固定臂的各个半导体开关元件的漏极端子和源极端子之间。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2004327104A Induction heating cooker 审中-公开
公开(公告)号：JP2004327104A
公开(公告)日：2004-11-18
申请号：JP2003116614
申请日：2003-04-22
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAWAKAMI TOMOYUKI , SUGA IKURO
IPC分类号： H05B6/12
摘要： PROBLEM TO BE SOLVED: To provide an induction heating cooker capable of reducing the cost and size of a resonance capacitor by limiting an application voltage to the resonance capacitor. SOLUTION: This induction heating cooker is equipped with: a rectifying circuit 10 for rectifying supply power from the outside; a smoothing circuit 20 for converting it into D.C. power; an inverter circuit 30 having a pair of switching elements 31 and 32 serially connected between output lines of the smoothing circuit 20, and a series load circuit of a heating coil 36 and a resonance capacitor 37 connected in parallel with either of the switching elements; a control circuit 50 for outputting a control signal based on a predetermined power setting value; an inverter drive circuit 60 for outputting drive signals of the respective switching elements 31 and 32 according to the control signal; and a capacitor voltage detection circuit 40 for detecting the application voltage to the resonance capacitor 37. The control circuit 50 varies the duty ratio of each drive signal so as to set a detection signal below a predetermined reference value. COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2011172485A Power conversion apparatus 有权
标题翻译：功率转换装置
公开(公告)号：JP2011172485A
公开(公告)日：2011-09-01
申请号：JP2011125951
申请日：2011-06-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ITO HIROSHI , IWATA AKIHIKO , KAWAKAMI TOMOYUKI
IPC分类号： H02M7/48 , H02M3/155
摘要： PROBLEM TO BE SOLVED: To realize an apparatus configuration having high conversion efficiency with reduced loss in a power conversion apparatus for boosting solar-light voltage, converting the resultant voltage into AC voltage and supplying the AC power to a load or a system. SOLUTION: AC sides of single-phase inverters 6-8 receiving input DC power for each of first-third capacitors 3-5 are connected in series, and an output voltage is controlled by the total sum of the generated voltage from each of the inverters. The voltage of the first capacitor 3 having the maximum voltage is generated into a desired voltage from the solar-light voltage via a step-down converter 17 and a boosting chopper 11. Bypass circuits 12, 18 and 28 are provided to bypass both or either of the step-down converter 17 and the boosting chopper 11 as required. When the voltages of the second and third capacitors 4 and 5 increase to the predetermined voltages or higher, control for reducing the voltage of the first capacitor 6 is performed to increase the amount of discharging of the second and third capacitors 4 and 5 via single-phase inverters 2 and 3. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了实现在用于升压太阳能电压的功率转换装置中具有较高转换效率和降低的损耗的装置配置，将所得到的电压转换成AC电压并将AC电力提供给负载或系统。解决方案：对第一，第三电容器3-5中的每一个接收输入直流电力的单相逆变器6-8的交流侧串联连接，并且输出电压由来自每一个的所产生的电压的总和控制的逆变器。具有最大电压的第一电容器3的电压经由降压转换器17和升压斩波器11从太阳能电压产生到期望的电压。旁路电路12,18和28被设置为绕过两者或任一的降压转换器17和升压斩波器11。当第二和第三电容器4和5的电压增加到预定电压或更高电平时，执行用于降低第一电容器6的电压的控制，以通过单相电容器6增加第二和第三电容器4和5的放电量。相位逆变器2和3.版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2006136057A Power supply device 有权
标题翻译：电源设备
公开(公告)号：JP2006136057A
公开(公告)日：2006-05-25
申请号：JP2004319361
申请日：2004-11-02
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAWAKAMI TOMOYUKI , SUGA IKURO , OSUGA HIROYUKI
IPC分类号： H02M3/00
摘要： PROBLEM TO BE SOLVED: To obtain a power supply device that can control a rising speed of a high voltage applied to a load, can suppress to the minimum the generation of a steep output current flowing at discharging, and can surely perform the start and restart of discharging in a short time.
SOLUTION: A high-voltage filter circuit 5 applies a voltage to a load 100 that has a non-loading characteristic before being discharged. The high-voltage filter circuit 5 comprises a capacitor that has a capacity having a such a level that a voltage fed to the load 100 immediately after being discharged is varied at an negative inclination, and the voltage does not become zero. By this, the voltage fed to the load 100 is once lowered immediately after the load 100 is discharged, and after that, the fed voltage is moderately raised.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了获得能够控制施加到负载的高电压的上升速度的电源装置，可以最小化抑制在放电时流过的陡峭的输出电流，并且可以可靠地执行在短时间内启动和重新启动放电。解决方案：高压滤波电路5对放电前具有非负载特性的负载100施加电压。高压滤波器电路5包括电容器，该电容器具有这样的电平，使得在放电之后立即向负载100馈送的电压以负斜率变化，并且电压不变为零。由此，在负载100被放电之后，馈送到负载100的电压立即下降，然后，馈送电压适度地升高。版权所有（C）2006，JPO＆NCIPI

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