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    • 2. 发明专利
    • Power conversion device
    • 电源转换器件
    • JP2013150490A
    • 2013-08-01
    • JP2012010758
    • 2012-01-23
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • KANESHIRO HIROBUMISHIGEOKA KEIJIHAYASHI YUJINAKAMURA KIMIKAZU
    • H02M3/28
    • PROBLEM TO BE SOLVED: To provide a power conversion device capable of suppressing variation in output current characteristics occurring due to variation in an input/output voltage in a constant-current control region.SOLUTION: A DC-DC converter device 1 includes a transformer 10, an input-side circuit 11, an output-side circuit 12, and a control circuit 13. The control circuit 13 determines a current reference value on the basis of a voltage reference value and an output voltage of the output-side circuit 12. The control circuit 13 controls the input-side circuit 11 on the basis of the current reference value and a current flowing through a primary winding 100 at the time of a constant-voltage control region in which the current reference value is lower than or equal to the maximum current reference value, and on the basis of the maximum current reference value and the current flowing through the primary winding 100 at the time of the constant-voltage control region in which the current reference value is larger than or equal to the maximum current reference value. At this time, the maximum current reference value is adjusted on the basis of an input voltage of the input-side circuit 11 and the output voltage of the output-side circuit 12. For this reason, in the constant-current control region, variation in output current characteristics occurring due to variation in an input/output voltage can be suppressed.
    • 要解决的问题:提供能够抑制由于恒定电流控制区域中的输入/输出电压的变化而产生的输出电流特性的变化的电力转换装置。解决方案:DC-DC转换器装置1包括变压器10 ,输入侧电路11,输出侧电路12和控制电路13.控制电路13基于输出侧电路12的电压基准值和输出电压来决定电流基准值。 控制电路13基于当前参考值和当前参考值低于或等于的一个恒定电压控制区域时流过初级绕组100的电流来控制输入侧电路11 最大电流参考值,并且基于最大电流参考值和流过初级绕组100的电流在恒压控制区域的时间 t参考值大于或等于最大电流参考值。 此时,基于输入侧电路11的输入电压和输出侧电路12的输出电压来调整最大电流基准值。因此,在恒流控制区域中,变化 可以抑制由于输入/输出电压的变化而产生的输出电流特性。
    • 4. 发明专利
    • Dc-dc converter
    • DC-DC转换器
    • JP2005051995A
    • 2005-02-24
    • JP2004207617
    • 2004-07-14
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • KAWASAKI KOJISHIGEOKA KEIJIYAMASHITA TAKESHI
    • H02M7/21H02M3/155H02M3/28
    • PROBLEM TO BE SOLVED: To provide a two-transformer type DC-DC converter in which a size and a weight can be reduced, the number of switching elements can be reduced, and further which has an excellent efficiency and in which a ripple component of output current can be reduced and a capacity of an input side smoothing capacitor can be reduced. SOLUTION: The DC-DC converter includes coils W1, W4, coils W2, W5 in which a voltage is supplied from a primary side AC/DC converter circuit for forming an inverter, coils W3, W6 connected to a secondary side for forming a synchronous rectifier circuit and coils W1, W2 and W3 for forming a transformer T1, and coils W4, W5, and W6 for forming a transformer T2. In the DC-DC converter, poles 1011, 1021 in which the coils W1, W2, and W3 are wound, and poles 1013, 1023 in which the coils W4, W5, and W6 are wound, are magnetically short-circuited by poles 1013, 1023, 1013', and 1023' for forming a common magnetic path, a top plate 1020 and a bottom plate 1010. Since substantially two transformers are integrated, reduction in the size and the weight can be realized. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供其中可以减小尺寸和重量的双变压器型DC-DC转换器,可以减少开关元件的数量,并且进一步具有优异的效率,并且其中 可以减小输出电流的波动分量,并且可以减小输入侧平滑电容器的容量。 解决方案:DC-DC转换器包括线圈W1,W4,其中从用于形成逆变器的一次侧AC / DC转换器电路提供电压的线圈W2,W5,连接到次级侧的线圈W3,W6 形成同步整流电路和用于形成变压器T1的线圈W1,W2和W3,以及用于形成变压器T2的线圈W4,W5和W6。 在DC-DC转换器中,缠绕有线圈W1,W2和W3的极点1011,1021和缠绕有线圈W4,W5和W6的极点1013,1043被磁极1013磁性地短路 ,1023,1013'和1023',用于形成公共磁路,顶板1020和底板1010.由于基本上两个变压器集成在一起,可以实现尺寸和重量的减小。 版权所有(C)2005,JPO&NCIPI
    • 5. 发明专利
    • Power conversion device
    • 电源转换器件
    • JP2013150394A
    • 2013-08-01
    • JP2012007310
    • 2012-01-17
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • KANESHIRO HIROBUMISHIGEOKA KEIJIHAYASHI YUJINAKAMURA KIMIKAZU
    • H02M3/28
    • H02M3/24B60R16/03H02M3/33507H02M3/3376
    • PROBLEM TO BE SOLVED: To provide a power conversion device capable of suppressing variation in, for example, an input current even if a delay occurs in, for example, current detection means.SOLUTION: A DC-DC converter device 1 includes a mask circuit 134 and a mask signal generator 138. The mask signal generator 138 generates and outputs a mask signal during a predetermined time interval including the time before and after an output timing of a reference signal. The mask circuit 134 forces to set an output voltage of an input-current detection unit 133 to 0 V during a mask time. For this reason, comparators 135a and 135b can set an output of a reset signal to a low level during the mask time. Thus, a PWM signal generator 137b and a driving circuit 139b are synchronized with the reset signal and can cause a switch not to turn off during the mask time. For this reason, a switching operation different from the original operation, which occurs due to a delay of, for example, the input current detection unit 133, can be suppressed, thereby suppressing variation in, for example, an input current even if the delay occurs.
    • 要解决的问题:提供即使在例如电流检测装置中发生延迟的情况下也能够抑制例如输入电流的变化的电力转换装置。解决方案:DC-DC转换器装置1包括掩模电路 134和掩模信号发生器138.掩模信号发生器138在包括参考信号的输出定时之前和之后的时间的预定时间间隔期间产生并输出屏蔽信号。 掩模电路134迫使在屏蔽时间期间将输入电流检测单元133的输出电压设置为0V。 为此,比较器135a和135b可以在屏蔽时间期间将复位信号的输出设置为低电平。 因此,PWM信号发生器137b和驱动电路139b与复位信号同步,并且可以在掩模时间期间使开关不断开。 为此,可以抑制由于例如输入电流检测单元133的延迟而发生的与原始操作不同的开关操作,从而抑制例如输入电流的变化,即使延迟 发生。
    • 6. 发明专利
    • Power source system
    • 电源系统
    • JP2013090519A
    • 2013-05-13
    • JP2011231461
    • 2011-10-21
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • SHIGEOKA KEIJINAKAMURA KIMIKAZUHAYASHI YUJI
    • H02M3/28H02M3/335
    • PROBLEM TO BE SOLVED: To provide a power source system of a digital control type having a plurality of DCDC converters connected together in parallel, the power source system capable of suitably preventing generation of difference in on-switching timings of respective switching elements of the DCDC converters due to delay in transmission of a synchronization pulse.SOLUTION: A master controller 16a outputs a synchronization pulse in a predetermined cycle to each of first and second slave controllers 16b and 16c, and resets its own counter value when the counter value reaches a specified value. Further, the first and second slave controllers 16b and 16c resets their respective counter values upon input of a synchronization pulse. With the above configuration, the master controller 16a accelerates output of a synchronization pulse by delay time due to compound delay with regard to the reset timing of its own counter value.
    • 解决的问题:为了提供具有并联在一起的多个DCDC转换器的数字控制型电源系统,能够适当地防止各个开关元件的导通时序的差异的产生的电源系统 的DCDC转换器由于延迟同步脉冲的传输而发生。 解决方案:主控制器16a以预定周期将同步脉冲输出到第一和第二从控制器16b和16c中的每一个,并且当计数器值达到指定值时重置其自己的计数器值。 此外,第一和第二从控制器16b和16c在输入同步脉冲时重置它们各自的计数器值。 利用上述配置,主控制器16a相对于其自己的计数器值的复位定时由于由于复合延迟而延迟同步脉冲的输出。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Two-transformer type dc-dc converter and dc-dc converter
    • 双变压器型DC-DC转换器和DC-DC转换器
    • JP2005051994A
    • 2005-02-24
    • JP2004207597
    • 2004-07-14
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • KAWASAKI KOJISHIGEOKA KEIJIYAMASHITA TAKESHI
    • H02M3/28
    • PROBLEM TO BE SOLVED: To provide a two-transformer type DC-DC converter of which the size and weight can be reduced, the number of switching elements can be reduced, which further has an excellent efficiency and a small input current ripple component, and in which the capacity of an input side smoothing capacitor can be reduced. SOLUTION: The two-transformer type DC-DC converter includes an AC/DC converter circuit 11 as an inverter disposed between an input DC power source 2 and transformers T1, T2 and a AC/DC converter circuit 21 as a rectifier circuit disposed between the transformers T1, T2 and a load 3. The AC/DC converter circuit 11 includes primary coils W2, W5 connected in series with each other, and a capacitor C1 connected in series with a parallelly connected main switch Q1 and a clamp circuit so that a voltage is supplied from the input DC power source 2 through the primary coils W1, W4 connected in series with each other. The transformer T1 has the primary coils W1, W2 and a secondary coil W3, the transformer T2 has primary coils W4, W5 and a secondary coil W6, and outputs of the secondary coils W3, W6 are rectified by a AC/DC converter circuit 21 of a synchronous rectifier circuit, and output to the load 3. The clamp circuit is connected in series with a subswitch Q2 and a capacitor C2. Thus, an input current ripple rate can be reduced. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供可以减小尺寸和重量的双变压器型DC-DC转换器,可以减少开关元件的数量,这进一步具有优异的效率和小的输入电流纹波 分量,并且可以减小输入侧平滑电容器的容量。 解决方案:双变压器型DC-DC转换器包括作为逆变器的AC / DC转换器电路11,其设置在输入DC电源2和变压器T1,T2和作为整流电路的AC / DC转换器电路21之间 设置在变压器T1,T2和负载3之间.AC / DC转换器电路11包括彼此串联连接的初级线圈W2,W5和与并联连接的主开关Q1和钳位电路串联连接的电容器C1 使得从输入DC电源2通过彼此串联连接的初级线圈W1,W4提供电压。 变压器T1具有初级线圈W1,W2和次级线圈W3,变压器T2具有初级线圈W4,W5和次级线圈W6,次级线圈W3,W6的输出由AC / DC转换器电路21整流 的同步整流电路,并输出到负载3.钳位电路与子开关Q2和电容器C2串联连接。 因此,可以减小输入电流纹波率。 版权所有(C)2005,JPO&NCIPI
    • 8. 发明专利
    • Dc/dc converter
    • DC / DC转换器
    • JP2013090520A
    • 2013-05-13
    • JP2011231462
    • 2011-10-21
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • SHIGEOKA KEIJINAKAMURA KIMIKAZUHAYASHI YUJI
    • H02M3/155H02M3/28
    • PROBLEM TO BE SOLVED: To provide a DC/DC converter CV of digital control system capable of suitably suppressing ripples of output voltage thereof.SOLUTION: In an AD conversion unit B1, output voltage from a DC/DC converter CV is sampled, every period thereof, in a time interval obtained by dividing one period of the output voltage by N-th power (N=1) of 2, and the output voltage thus sampled is acquired as digital data. In an average value calculation unit B2, average value VA of the output voltage Vout, as the digital data thus acquired, is calculated by digital processing. In a feedback control unit B3, a threshold Cα for feedback controlling the average value VA to a target voltage VREF is calculated, and an operation signal SW (PWM signal) for a switching element 16 is generated using the threshold Cα thus calculated as an input.
    • 要解决的问题:提供能够适当地抑制其输出电压的波动的数字控制系统的DC / DC转换器CV。 解决方案:在AD转换单元B1中,在通过将输出电压的一个周期除以N次幂(N = 1)而获得的时间间隔中,对每个周期对来自DC / DC转换器CV的输出电压进行采样 )为2,并且作为数字数据获取如此采样的输出电压。 在平均值计算单元B2中,通过数字处理来计算作为如此获取的数字数据的输出电压Vout的平均值VA。 在反馈控制单元B3中,计算用于反馈控制平均值VA至目标电压VREF的阈值Cα,并且使用这样计算的阈值Cα作为输入产生用于开关元件16的操作信号SW(PWM信号) 。 版权所有(C)2013,JPO&INPIT
    • 9. 发明专利
    • Operation detection device
    • 操作检测装置
    • JP2012168747A
    • 2012-09-06
    • JP2011029334
    • 2011-02-15
    • Nippon Soken IncDenso Corp株式会社デンソー株式会社日本自動車部品総合研究所
    • MIMA NORIOSHIGEOKA KEIJITOMITA YOSHITAKANAKAGAWA KUNIHIRO
    • G06F3/041G06F3/044
    • PROBLEM TO BE SOLVED: To provide an operation detection device detecting touch operation capable of detecting touch operation even when a user operates the device, wearing gloves, or when water attaches to the device.SOLUTION: A sheet-like metal body 12 is attached to an operation unit 11. The operation unit 11 has a detection coil substrate 20 on the rear side thereof through a spacer 30. The detection coil substrate 20 has coils 21 formed thereon and facing the metal body 12. Inputting an alternating current from an alternating current generation unit 40 to the coils 21 generates magnetic flux through the coils 21. The magnetic flux generates an eddy current in the metal body 12. The eddy current generates reverse magnetic flux. Operating the operation unit 11 shortens a distance between the operation unit 11 and the detection coil substrate 20 and increases the eddy current generated in the metal body 12. This increases the reverse magnetic flux and decreases inductance of the coils 21. A detection circuit 50 detects the decrease in the inductance, and a microcomputer 60 determines that the operation unit 11 is operated.
    • 要解决的问题:提供一种检测触摸操作的操作检测装置,即使当用户操作装置,佩戴手套或当水附着到装置时,也能检测触摸操作。 解决方案:片状金属体12安装在操作单元11上。操​​作单元11通过间隔件30在其后侧具有检测线圈基板20.检测线圈基板20具有形成在其上的线圈21 并且面向金属体12.从交流发电单元40向线圈21输入交流电流产生通过线圈21的磁通。磁通在金属体12中产生涡电流。涡流产生反向磁通 。 操作操作单元11缩短操作单元11和检测线圈基板20之间的距离,并且增加在金属体12中产生的涡流。这增加了反向磁通量并降低了线圈21的电感。检测电路50检测 电感的减少,微型计算机60确定操作单元11被操作。 版权所有(C)2012,JPO&INPIT