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公开(公告)号：US10700511B2
公开(公告)日：2020-06-30
申请号：US14513346
申请日：2014-10-14
申请人： Yazaki Corporation
摘要： A protector for an electricity supply circuit includes: a power switch for switching between connection and disconnection of the electricity supply circuit; a controller configured to output a switching command signal to the power switch in accordance with an input signal; and a current detector for detecting current flowing to the electricity supply circuit. The controller includes: a lower limit threshold determination unit configured to determine whether or not an estimated temperature of a power line has dropped below a lower limit threshold; a timer for counting the time that passes after a load has been turned off, when the load is turned off by the power switch; and a mode switching unit configured to switch the controller to a sleep mode when a predetermined time is counted by the timer and the lower limit threshold determination unit determines that the estimated temperature has dropped below the lower limit threshold.
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公开(公告)号：US20170005653A1
公开(公告)日：2017-01-05
申请号：US15267236
申请日：2016-09-16
申请人： Yazaki Corporation
IPC分类号： H03K17/30
CPC分类号： H03K17/30 , H02J7/0063 , H02J2007/004 , H02J2007/0067 , H03K17/22
摘要： A load drive circuit shuts off power supply to a load when a semiconductor relay is off. The load drive circuit includes: the semiconductor relay which is turned off when a predetermined operation voltage cannot be secured; a low-voltage detection circuit which detects that the operation voltage is a predetermined value or less; a negative-voltage generation circuit which generates a negative voltage; and a switch unit which is turned on and connects between the negative-voltage generation circuit and a ground terminal of the semiconductor relay, in a case where the low-voltage detection circuit detects that the operation voltage is the predetermined value or less.
摘要翻译： 当半导体继电器关闭时，负载驱动电路关闭负载的电源。 负载驱动电路包括：当不能确保预定操作电压时关闭的半导体继电器; 低电压检测电路，其检测出所述工作电压为规定值以下; 产生负电压的负电压产生电路; 以及在低电压检测电路检测到操作电压为预定值或更小的情况下，导通并连接在负电压产生电路和半导体继电器的接地端子之间的开关单元。
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公开(公告)号：US20170288463A1
公开(公告)日：2017-10-05
申请号：US15467448
申请日：2017-03-23
申请人： Yazaki Corporation
摘要： A non-contact power transmission device includes a resonance coil and a resonance capacitor, and includes impedance variable circuits the impedance of which can be changed. In the non-contact power transmission device, a power transmission side controller changes impedance of one of the impedance variable circuits, a power reception side controller changes impedance of the other one of the impedance variable circuits, and output impedance on a power supply side with respect to a power transmission coil unit and input impedance on a load side with respect to the power transmission coil unit are matched.
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公开(公告)号：US09774323B2
公开(公告)日：2017-09-26
申请号：US15267236
申请日：2016-09-16
申请人： Yazaki Corporation
CPC分类号： H03K17/30 , H02J7/0063 , H02J2007/004 , H02J2007/0067 , H03K17/22
摘要： A load drive circuit shuts off power supply to a load when a semiconductor relay is off. The load drive circuit includes: the semiconductor relay which is turned off when a predetermined operation voltage cannot be secured; a low-voltage detection circuit which detects that the operation voltage is a predetermined value or less; a negative-voltage generation circuit which generates a negative voltage; and a switch unit which is turned on and connects between the negative-voltage generation circuit and a ground terminal of the semiconductor relay, in a case where the low-voltage detection circuit detects that the operation voltage is the predetermined value or less.
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公开(公告)号：US10312739B2
公开(公告)日：2019-06-04
申请号：US15467448
申请日：2017-03-23
申请人： Yazaki Corporation
摘要： A non-contact power transmission device includes a resonance coil and a resonance capacitor, and includes impedance variable circuits the impedance of which can be changed. In the non-contact power transmission device, a power transmission side controller changes impedance of one of the impedance variable circuits, a power reception side controller changes impedance of the other one of the impedance variable circuits, and output impedance on a power supply side with respect to a power transmission coil unit and input impedance on a load side with respect to the power transmission coil unit are matched.
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公开(公告)号：US09413159B2
公开(公告)日：2016-08-09
申请号：US14391833
申请日：2013-04-05
申请人： YAZAKI CORPORATION
摘要： A switching circuit protector switches a semiconductor device (11) provided in a switching circuit connecting a power supply (VB) to a load (RL), from a PWM drive state to a DC drive state when an estimated temperature of a cable of the switching circuit estimated by a temperature estimator (22) exceeds a threshold temperature (Tth), in the state where the semiconductor device (11) is controlled to operate in the PWM drive state to drive the load (RL). Therefore, when an overcurrent is caused in the cable, the estimated temperature exceeds the threshold temperature (Tth) so as to break the semiconductor device (11). Accordingly, the switching circuit can surely be protected by the switching circuit protector.
摘要翻译： 切换电路保护器将设置在将电源（VB）连接到负载（RL）的开关电路中的半导体器件（11）从PWM驱动状态切换到DC驱动状态，当开关电缆的估计温度 在半导体器件（11）被控制为在PWM驱动状态下工作以驱动负载（RL）的状态下，由温度估计器（22）估计的电路超过阈值温度（Tth）。 因此，当在电缆中产生过电流时，估计温度超过阈值温度（Tth），以破坏半导体器件（11）。 因此，开关电路确实可以被开关电路保护器保护。
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公开(公告)号：US20150138682A1
公开(公告)日：2015-05-21
申请号：US14391833
申请日：2013-04-05
申请人： YAZAKI CORPORATION
IPC分类号： H02H3/08
摘要： A switching circuit protector switches a semiconductor device (11) provided in a switching circuit connecting a power supply (VB) to a load (RL), from a PWM drive state to a DC drive state when an estimated temperature of a cable of the switching circuit estimated by a temperature estimator (22) exceeds a threshold temperature (Tth), in the state where the semiconductor device (11) is controlled to operate in the PWM drive state to drive the load (RL). Therefore, when an overcurrent is caused in the cable, the estimated temperature exceeds the threshold temperature (Tth) so as to break the semiconductor device (11). Accordingly, the switching circuit can surely be protected by the switching circuit protector.
摘要翻译： 切换电路保护器将设置在将电源（VB）连接到负载（RL）的开关电路中的半导体器件（11）从PWM驱动状态切换到DC驱动状态，当开关电缆的估计温度 在半导体器件（11）被控制为在PWM驱动状态下工作以驱动负载（RL）的状态下，由温度估计器（22）估计的电路超过阈值温度（Tth）。 因此，当在电缆中产生过电流时，估计温度超过阈值温度（Tth），以破坏半导体器件（11）。 因此，开关电路确实可以被开关电路保护器保护。
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公开(公告)号：US11831194B2
公开(公告)日：2023-11-28
申请号：US17392343
申请日：2021-08-03
申请人： Yazaki Corporation
发明人： Kentaro Imoto , Akinori Maruyama , Keisuke Ueta , Yoshiya Ohnuma , Shohei Komeda
CPC分类号： H02J7/06 , H02J7/00711 , H02M3/33573 , H02M3/33576 , H02J2207/20 , H02M7/06
摘要： A charger includes a rectifier including two input terminals for connection to an AC power supply, a cathode terminal and an anode terminal, a DC/DC converter including a first terminal be connected to the cathode terminal, a second terminal to be connected to the anode terminal, and two output terminals for connection to a battery, a power pulsation absorbing circuit including a first diode, a second diode, a third diode, an inductor, a capacitor, a first switch and a second switch, and a control section configured to control a switch of the DC/DC converter, the first switch and the second switch, wherein the control section is configured to control the DC/DC converter, the first switch and the second switch in such a way that a sum of a power outputted from the AC power supply and a power outputted from the capacitor is constant.
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公开(公告)号：US10780782B2
公开(公告)日：2020-09-22
申请号：US16393036
申请日：2019-04-24
申请人： Yazaki Corporation
发明人： Keisuke Ueta
摘要： A vehicle information display system includes: a master-side instrument including a first power transmission coil, a first signal transmission coil, and a first case; and a meter instrument including a display unit, a second power transmission coil, a second signal transmission coil, and a second case. The master-side instrument and the meter instrument have a positional relation such that in a state in which a fitting recessed part of the first case and the second case are fitted to each other, the first power transmission coil is opposed to the second power transmission coil, and the first signal transmission coil is opposed to the second signal transmission coil.
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公开(公告)号：US10707675B2
公开(公告)日：2020-07-07
申请号：US15911445
申请日：2018-03-05
发明人： Takashi Kikuchi , Keisuke Ueta , Syunsuke Nagakura , Takahiro Miyakawa , Tomoya Nishino , Noboru Ujigawa , Seiju Kawamata , Masataka Tsukioka , Rikuya Ezoe
IPC分类号： H02H5/04 , G01K3/00 , G01K7/42 , H02H3/08 , H02H6/00 , G01R19/00 , H02H7/22 , H02H7/26 , H01H11/00
摘要： An electric-wire protection device includes a voltage adjustment unit that adjusts the voltage to a load, and a controller that includes a temperature calculation unit that calculates temperature information on an electric wire from a value of current, and makes the voltage adjustment unit into a shut-off state based on the temperature information. The temperature information is calculated from an amount of temperature changes based on the current value and a predetermined initial value. The controller shifts into a sleep state when a sleep condition is satisfied that includes a condition that the temperature information is lower than the initial value. The initial value when the controller returns from the sleep state is based on a convergence value of temperature in conducting energization on the electric wire at a maximum value of steady-state current.
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