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1. 发明申请

US20180367031A1 POWER SUPPLY DEVICE 审中-公开
公开(公告)号：US20180367031A1
公开(公告)日：2018-12-20
申请号：US16061012
申请日：2016-11-16
申请人： DENSO CORPORATION
发明人： Keiichi ANDO , Yuichi HANDA , Kimikazu NAKAMURA , Kaoru KOKETSU , Yuki YAMADA , Seiji IYASU , Shuji KURAUCHI
IPC分类号： H02M1/44 , H02M3/335 , H05K1/18 , H05K1/11 , H01F27/28 , H01F27/24
CPC分类号： H02M1/44 , H01F27/24 , H01F27/28 , H02M3/28 , H02M3/33507 , H02M3/33576 , H02M3/33584 , H02M3/3382 , H02M7/003 , H05K1/115 , H05K1/184
摘要： A power supply device includes a transformer, a primary semiconductor component, a secondary semiconductor component, a choke coil and a circuit board. Electronic components which include the transformer, the primary semiconductor component, the secondary semiconductor component, and the choke coil, are stacked in pairs, in a normal direction of a board. One pair forms a first stacked body and another pair to forms a second stacked body. A circuit board is interposed between the one pair of electronic components which forms the first stacked body, and also between the other pair of electronic components which forms the second stacked body.

2. 发明申请

US20140226368A1 POWER CONVERSION APPARATUS 有权
标题翻译：功率转换装置
公开(公告)号：US20140226368A1
公开(公告)日：2014-08-14
申请号：US14176454
申请日：2014-02-10
申请人： NIPPON SOKEN, INC. , DENSO CORPORATION
发明人： Norihito KIMURA , Kimikazu NAKAMURA , Yuji HAYASHI
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0041
摘要： A power conversion apparatus includes a switch circuit which drives switching elements based on a control signal, a feedback section which performs feedback control, a signal output section which outputs the control signal based on a controlled variable of the feedback control, an output value detecting section which detects an output value outputted from the switch circuit, and an operation determining unit which has an operation stop determination section which determines whether to stop operation of the switching elements based on a rate of change of the output value, and an operation start determination section which determines whether to start operation of the switching elements based on the controlled variable.
摘要翻译：电力转换装置包括：基于控制信号驱动开关元件的开关电路;执行反馈控制的反馈部;基于反馈控制的受控变量输出控制信号的信号输出部;输出值检测部; 其检测从开关电路输出的输出值，以及操作判定单元，其具有基于输出值的变化率决定是否停止开关元件的动作的动作停止判定部，以及操作开始判定部其基于受控变量确定是否开始操作开关元件。

3. 发明申请

US20170033696A1 POWER CONVERSION APPARATUS 有权
标题翻译：功率转换装置
公开(公告)号：US20170033696A1
公开(公告)日：2017-02-02
申请号：US15222628
申请日：2016-07-28
申请人： DENSO CORPORATION
发明人： Yuuichi HANDA , Seiji IYASU , Kimikazu NAKAMURA
IPC分类号： H02M3/335 , H02M1/08
CPC分类号： H02M3/33584
摘要： A power conversion apparatus includes a power conversion circuit, a choke coil, an auxiliary coil, and a rectifier element. The choke coil is disposed between the power conversion circuit and an input side direct current power source. The auxiliary coil is magnetically coupled to the choke coil and is connected in parallel with an output side circuit. The auxiliary coil is wound in a direction so that an excitation current flows from a negative electrode to a positive electrode of the output side circuit when an excitation current flows from a positive electrode to a negative electrode of the direct current power source through the choke coil. The rectifier element is series connection with the auxiliary coil, and cuts off power supply from the direct current power source to the output side circuit through the auxiliary coil and power supply from the output side circuit to the input side.
摘要翻译：电力转换装置包括电力转换电路，扼流线圈，辅助线圈和整流元件。扼流线圈设置在电力转换电路和输入侧直流电源之间。辅助线圈磁耦合到扼流圈并与输出侧电路并联连接。当激励电流通过扼流线圈从直流电源的正电极流向负电极时，辅助线圈沿着使得激励电流从输出侧电路的负极流向正电极的方向缠绕。整流元件与辅助线圈串联连接，并通过辅助线圈和从输出侧电路到输入侧的电源切断直流电源到输出侧电路的电源。

4. 发明申请

US20130336014A1 ELECTRIC POWER CONVERSION CIRCUIT 有权
标题翻译：电力转换电路
公开(公告)号：US20130336014A1
公开(公告)日：2013-12-19
申请号：US13845963
申请日：2013-03-18
申请人： DENSO CORPORATION
发明人： Hirofumi KINJOU , Keiji SHIGEOKA , Yuji HAYASHI , Kenji TOMITA , Kimikazu NAKAMURA
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/3376 , H02M7/53871
摘要： A DC-DC converter generates PWM signals PWM1H, PWM1L on the basis of a reference signal CLK1 to drive switching elements connected in series. When generating a reset signal RST, the converter generates PWM signals PWM2H, PWM2L on the basis of the reset signal RST. When generating no reset signal, the converter generates the PWM signals PWM2H, PWM2L on the basis of a reference signal CLK2 in order to drive other switching elements connected in series. The converter generates the reset signal RST at an optional timing to the reference signal CLK1. The reference signal CLK2 is brought forward from the reference signal CLK1 by ΔT1. The PWM signals PWM1H, PWM1L are different in timing from the PWM signals PWM2H, PWM2L. This makes it possible to avoid the switching elements diagonally arranged from being simultaneously turned on and off, and suppress a switching loss, and to increase an efficiency of the converter.
摘要翻译： DC-DC转换器基于参考信号CLK1产生PWM信号PWM1H，PWM1L，以驱动串联连接的开关元件。当产生复位信号RST时，转换器基于复位信号RST产生PWM信号PWM2H，PWM2L。当不产生复位信号时，转换器基于参考信号CLK2产生PWM信号PWM2H，PWM2L，以驱动串联连接的其它开关元件。转换器在参考信号CLK1的可选定时产生复位信号RST。参考信号CLK2从参考信号CLK1提前DeltaT1。 PWM1H，PWM1L的PWM信号与PWM2H，PWM2L的PWM信号的时序不同。这使得可以避免对角线布置的同时导通和截止的开关元件，并且抑制开关损耗，并且提高转换器的效率。

5. 发明申请

US20130300397A1 POWER CONVERTER 有权
标题翻译：电源转换器
公开(公告)号：US20130300397A1
公开(公告)日：2013-11-14
申请号：US13743745
申请日：2013-01-17
申请人： DENSO CORPORATION
发明人： Hirofumi KINJO , Keiji SHIGEOKA , Yuji HAYASHI , Kimikazu NAKAMURA
IPC分类号： H02J1/02 , H02M3/24 , B60R16/03
CPC分类号： H02M3/24 , B60R16/03 , H02M3/33507 , H02M3/3376
摘要： In a power converter, a reference signal generator generates a reference signal with a predetermined period. A current detector detects a current flowing in the converter. When a value of the detected current is larger than a value of a predetermined current command, a reset signal generator generates a reset signal. A driving unit drives a switch. The switch is turned on, and subsequently is turned off: (i) in synchronization with the reference signal when the reset signal is not outputted before the reference signal is outputted; and (ii) in synchronization with the reset signal when the reset signal is outputted before the reference signal is outputted. However, the switch is turned off in synchronization with the reset signal during a predetermined time including a first predetermined time before an output timing of the reference signal and a second predetermined time after the output timing of the reference signal.
摘要翻译：在功率转换器中，参考信号发生器产生具有预定周期的参考信号。电流检测器检测在转换器中流动的电流。当检测电流的值大于预定电流指令的值时，复位信号发生器产生复位信号。驱动单元驱动开关。开关导通，随后断开：（i）在参考信号输出之前不输出复位信号时与参考信号同步; 以及（ii）当在输出参考信号之前输出复位信号时与复位信号同步。然而，在包括参考信号的输出定时之前的第一预定时间和参考信号的输出定时之后的第二预定时间的预定时间期间，开关与复位信号同步地被关闭。

6. 发明申请

US20170085181A1 POWER CONVERSION APPARATUS AND METHOD FOR CONTROLLING POWER CONVERSION APPARATUS 有权
公开(公告)号：US20170085181A1
公开(公告)日：2017-03-23
申请号：US14857023
申请日：2015-09-17
申请人： DENSO CORPORATION
发明人： Kenji TOMITA , Kimikazu NAKAMURA , Shinya GOTO , Katsutoyo MISAWA , Yuuichi HANDA , Seiji IYASU
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/3378
摘要： A power conversion apparatus supplies power from a DC power supply to a capacitive load by a current input push-pull DCDC converter provided with switching elements Q1 and Q2. When a capacitive load voltage is not larger than a second predetermined value, a first mode is used which turns ON one of the switching elements Q1 and Q2 alternated with turning OFF both. When the capacitive load voltage is larger than the second predetermined value but not larger than a first predetermined value, a second mode is used which turns ON both of the switching elements Q1 and Q2, then turns ON one of them, then turns OFF both, sequentially. When the capacitive load voltage is larger than the first predetermined value, a third mode is used, turning ON both of the switching elements Q1 and Q2 alternated with turning ON one of them.

7. 发明申请

US20160094134A1 POWER CONVERSION APPARATUS 有权
标题翻译：功率转换装置
公开(公告)号：US20160094134A1
公开(公告)日：2016-03-31
申请号：US14863801
申请日：2015-09-24
申请人： DENSO CORPORATION
发明人： Seiji IYASU , Kimikazu NAKAMURA , Yuuichi HANDA
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/3353 , H02M3/33569 , H02M3/3378 , H02M2001/0019 , H02M2001/325
摘要： Power conversion apparatus converts input voltage and supplies output voltage to the electric load. The apparatus includes a semiconductor switch switches between open and closed states to regulate voltage control current for controlling output voltage, a first voltage detection section detects remote voltage being applied to the electric load as output voltage, a second voltage detection section detects a local voltage being applied to the output terminal as output voltage, a target current calculation section calculates target current which is the voltage control current target value, based on voltage deviation between target voltage which is the output voltage target value and either remote voltage or local voltage, and a switch control section controls the semiconductor switch so voltage control current becomes target current, to regulate output voltage to target voltage. The target current calculation section calculates the target current by using one of the remote or local voltage corresponds to a smaller target current.
摘要翻译：电力转换装置转换输入电压并向电负载提供输出电压。所述装置包括半导体开关，其在开状态和闭态之间切换以调节用于控制输出电压的电压控制电流，第一电压检测部分检测施加到电负载的远程电压作为输出电压，第二电压检测部分检测局部电压施加到输出端子作为输出电压，目标电流计算部分基于作为输出电压目标值的目标电压与远程电压或局部电压之间的电压偏差来计算作为电压控制电流目标值的目标电流，以及开关控制部分控制半导体开关，使电压控制电流成为目标电流，以调节输出电压到目标电压。目标电流计算部分通过使用对应于较小目标电流的远程或局部电压之一来计算目标电流。

8. 发明申请

US20140307480A1 ELECTRIC POWER CONVERSION DEVICE 有权
标题翻译：电力转换装置
公开(公告)号：US20140307480A1
公开(公告)日：2014-10-16
申请号：US14245379
申请日：2014-04-04
申请人： DENSO CORPORATION
发明人： Masashi HAMAMOTO , Kimikazu NAKAMURA , Kenta HATAKENAKA
IPC分类号： H02M3/335
CPC分类号： H02M3/3376
摘要： An electric power conversion device has a transformer, a DC-AC conversion circuit, an AC-DC conversion circuit and a control circuit. The control circuit calculates an input current instruction value Iref based on a difference value ΔV between an output voltage Vout of the AC-DC conversion circuit and an output voltage instruction value Vref. A comparator compares an input current Iin of the DC-AC conversion circuit with the value Iref. The DC-AC conversion circuit is controlled by the comparison result of the comparator. The control circuit correctly determines an occurrence of an abnormality state of the electric power conversion device based on the operation state of the comparator, the difference value ΔV between the output voltage Vout of the AC-DC conversion circuit and the output voltage instruction value Vref, and the input voltage Vin of the DC-AC conversion circuit without using any output current of the AC-DC conversion circuit.
摘要翻译：电力转换装置具有变压器，DC-AC转换电路，AC-DC转换电路和控制电路。控制电路基于AC-DC转换电路的输出电压Vout与输出电压指令值Vref之间的差值Dgr; V来计算输入电流指令值Iref。比较器将DC-AC转换电路的输入电流Iin与值Iref进行比较。 DC-AC转换电路由比较器的比较结果控制。控制电路基于比较器的运行状态，AC-DC转换电路的输出电压Vout与输出电压指令值之间的差值＆Dgr; V，正确地确定电力转换装置的异常状态的发生 Vref和DC-AC转换电路的输入电压Vin，而不使用AC-DC转换电路的任何输出电流。

9. 发明申请

US20150280591A1 POWER CONVERSION APPARATUS 有权
标题翻译：功率转换装置
公开(公告)号：US20150280591A1
公开(公告)日：2015-10-01
申请号：US14667894
申请日：2015-03-25
申请人： DENSO CORPORATION
发明人： Yuuichi HANDA , Seiji IYASU , Kimikazu NAKAMURA
IPC分类号： H02M3/335
CPC分类号： H02M3/33546 , H02M1/08 , H02M1/32 , H02M1/4225 , H02M1/4233 , H02M3/1584 , H02M3/33507 , H02M3/33569 , H02M2001/0009 , H02M2001/007 , Y02B70/126
摘要： A power conversion apparatus for converting AC power supplied from an AC power source to DC power includes an AC-DC conversion circuit connected with the AC power source at an input end thereof for converting the AC power to DC power, a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit, a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit, a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage, and a control unit for controlling operation of the DC-DC conversion circuit. The control unit suppresses output power of the DC-DC conversion circuit if the DC link voltage is
摘要翻译：用于将从AC电源提供的AC电力转换为DC电力的电力转换装置包括：AC电源转换电路，其与AC电源在其输入端连接，用于将AC电力转换为DC电力; DC-DC转换电路与AC-DC转换电路的输出端连接，用于转换由AC-DC转换电路产生的直流电力的直流电压电平，平滑电容并联连接到AC-DC转换的输出端电路和DC-DC转换电路的输入端，用于检测作为直流链路电压的平滑电容器的电压的直流链路电压检测器和用于控制DC-DC转换电路的操作的控制单元。如果DC链路电压为负，则控制单元抑制DC-DC转换电路的输出功率

10. 发明申请

US20140347767A1 POWER CONVERTER WITH SWITCHING ELEMENT 有权
标题翻译：带开关元件的电力转换器
公开(公告)号：US20140347767A1
公开(公告)日：2014-11-27
申请号：US14287507
申请日：2014-05-27
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Kimikazu NAKAMURA , Yuji HAYASHI
IPC分类号： H02H7/12
CPC分类号： H02H7/1213 , G05F1/573 , H02H3/44 , H02H9/02 , H02M1/32 , H02M3/155 , H02M3/335 , H02M7/5387
摘要： In a power converter, a driver that drives, according to a control signal, a switching element of a switch circuit for converting input power to output power. The control signal represents how to drive the switching element. A controller outputs the control signal to the driver for controlling the driver. A measuring unit measures a value of input power input to the switch circuit. A protection determining unit determines, based on the measured value of the input power, whether there is a need to protect the power converter. The protection determining unit outputs a stop control signal to at least one of the driver and the controller based on a result of the determination of whether there is a need to protect the power converter. The stop control signal represents whether to forcibly stop drive of the switching element.
摘要翻译：在功率转换器中，驱动器根据控制信号驱动用于将输入功率转换为输出功率的开关电路的开关元件。控制信号表示如何驱动开关元件。控制器将控制信号输出到驾驶员以控制驾驶员。测量单元测量输入到开关电路的输入电源的值。保护确定单元基于输入功率的测量值确定是否需要保护功率转换器。保护确定单元基于确定是否需要保护功率转换器的结果向至少一个驱动器和控制器输出停止控制信号。停止控制信号表示是否强制停止开关元件的驱动。

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