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1. 发明授权

US09065281B2 Charge/discharge control circuit and battery device 有权
标题翻译：充放电控制电路和电池装置
公开(公告)号：US09065281B2
公开(公告)日：2015-06-23
申请号：US13208753
申请日：2011-08-12
申请人： Atsushi Sakurai , Toshiyuki Koike , Kazuaki Sano , Fumihiko Maetani
发明人： Atsushi Sakurai , Toshiyuki Koike , Kazuaki Sano , Fumihiko Maetani
IPC分类号： H02J7/00
CPC分类号： H02J7/0034
摘要： Provided is a battery device for controlling charge/discharge of a secondary battery by a single bidirectionally conductive field effect transistor, a charge/discharge control circuit with which a leakage current of the bidirectionally conductive field effect transistor is reduced to perform stable operation. The charge/discharge control circuit includes: a switch circuit for controlling a gate of the bidirectionally conductive field effect transistor based on an output of a control circuit for controlling the charge/discharge of the secondary battery; and two MOS transistors for preventing back-flow of a charge current and a discharge current. The first MOS transistor has a drain and a back gate which are connected to each other, and a source connected to a drain of the bidirectionally conductive field effect transistor. The second MOS transistor has a drain and a back gate which are connected to each other, and a source connected to a source of the bidirectionally conductive field effect transistor.
摘要翻译：提供一种用于通过单个双向导电场效应晶体管控制二次电池的充电/放电的电池装置，具有双向导电场效应晶体管的漏电流被减小以执行稳定操作的充放电控制电路。充放电控制电路包括：开关电路，用于基于用于控制二次电池的充电/放电的控制电路的输出来控制双向传导场效应晶体管的栅极; 以及用于防止充电电流和放电电流的反向流动的两个MOS晶体管。第一MOS晶体管具有彼此连接的漏极和背栅极，以及连接到双向导电场效应晶体管的漏极的源极。第二MOS晶体管具有彼此连接的漏极和背栅极，以及连接到双向导电场效应晶体管的源极的源极。

2. 发明授权

US08384355B2 Battery state monitoring circuit and battery device 有权
标题翻译：电池状态监测电路和电池装置
公开(公告)号：US08384355B2
公开(公告)日：2013-02-26
申请号：US12874027
申请日：2010-09-01
申请人： Toshiyuki Koike , Atsushi Sakurai , Kazuaki Sano , Wataru Sakamoto , Fumihiko Maetani , Shohei Tsukamoto
发明人： Toshiyuki Koike , Atsushi Sakurai , Kazuaki Sano , Wataru Sakamoto , Fumihiko Maetani , Shohei Tsukamoto
IPC分类号： H01M10/46
CPC分类号： H02J7/0031 , H01M10/42
摘要： Provided are a battery state monitoring circuit and a battery device that are capable of reliably controlling charge by a charger even if a voltage of a secondary battery drops to around 0 V. In the battery device provided with the battery state monitoring circuit, respective gate voltages of a P-type metal oxide semiconductor (PMOS) transistor and an N-type metal oxide semiconductor (NMOS) transistor, which together form a voltage detection circuit for detecting a voltage of around 0 V of the secondary battery, are applied by a voltage dividing resistor circuit that is connected across terminals of the secondary battery.
摘要翻译：提供了即使二次电池的电压下降到0V左右，也能够可靠地控制充电器的电池状态监视电路和电池装置。在设置有电池状态监视电路的电池装置中，各自的栅极电压的P型金属氧化物半导体（PMOS）晶体管和N型金属氧化物半导体（NMOS）晶体管一起形成用于检测二次电池的0V左右的电压的电压检测电路，分压电阻器连接在二次电池的端子上。

3. 发明授权

US07990669B2 Battery protection circuit and battery device 有权
标题翻译：电池保护电路和电池装置
公开(公告)号：US07990669B2
公开(公告)日：2011-08-02
申请号：US12393598
申请日：2009-02-26
申请人： Kiyoshi Yoshikawa , Atsushi Sakurai , Toshiyuki Koike , Kazuaki Sano , Yoshihisa Tange
发明人： Kiyoshi Yoshikawa , Atsushi Sakurai , Toshiyuki Koike , Kazuaki Sano , Yoshihisa Tange
IPC分类号： H02H3/00
CPC分类号： H02J7/0026
摘要： Provided is a battery protection circuit and a battery device which may be manufactured at lower cost. Before all terminals of a battery protection circuit are each connected to batteries, even when a logical circuit malfunctions by an operation of a parasitic bipolar transistor formed by P-wells due to a connection order in which the batteries are connected, the logical circuit is reset by an operation of a parasitic bipolar transistor formed by the P-wells. For this reason, a charge/discharge path of the batteries is not interrupted due to the connection order. Accordingly, no limitation is placed on the connection order.
摘要翻译：提供了可以以较低成本制造的电池保护电路和电池装置。在电池保护电路的所有端子各自连接到电池之前，即使逻辑电路由于由连接电池的连接顺序而由P阱形成的寄生双极晶体管的操作而发生功能，逻辑电路被复位通过由P阱形成的寄生双极晶体管的操作。为此，由于连接顺序，电池的充电/放电路径不会中断。因此，对连接顺序没有限制。

4. 发明申请

US20090185323A1 OVERHEAT PROTECTION CIRCUIT 审中-公开
标题翻译：过度保护电路
公开(公告)号：US20090185323A1
公开(公告)日：2009-07-23
申请号：US12353719
申请日：2009-01-14
申请人： Kiyoshi Yoshikawa , Toshiyuki Koike , Shohei Tsukamoto , Kazuaki Sano , Fumihiko Maetani , Wataru Sakamoto , Atsushi Sakurai , Muneharu Kawana , Yoshihisa Tange
发明人： Kiyoshi Yoshikawa , Toshiyuki Koike , Shohei Tsukamoto , Kazuaki Sano , Fumihiko Maetani , Wataru Sakamoto , Atsushi Sakurai , Muneharu Kawana , Yoshihisa Tange
IPC分类号： H02H5/04
CPC分类号： H02H5/042 , G01K3/005
摘要： In order to provide an overheat protection circuit having a small mounting area, the overheat protection circuit includes: a resistor bridge circuit which includes: a plurality of resistors each having a temperature coefficient; an input terminal; and an output terminal; and a comparator circuit connected to the output terminal and the input terminal of the resistor bridge circuit. Parts are each provided in the vicinity of one of the plurality of resistors each having the temperature coefficient, and the comparator circuit outputs an overheat detection signal when a temperature of one of the parts is equal to or higher than an overheat detection temperature. With this structure, a large number of parts can be protected from overheating by a minimum number of overheat protection circuits. Therefore, a circuit scale becomes smaller, and hence a cost for overheat protection becomes lower.
摘要翻译：为了提供具有小安装面积的过热保护电路，过热保护电路包括：电阻桥电路，其包括：多个电阻器，每个电阻器具有温度系数; 一个输入端; 和输出端子; 以及连接到电阻桥电路的输出端和输入端的比较器电路。各个部件分别设置在各自具有温度系数的多个电阻器中的一个附近，并且当其中一个部件的温度等于或高于过热检测温度时，比较器电路输出过热检测信号。通过这种结构，可以通过最少数量的过热保护电路来保护大量的部件免于过热。因此，电路规模变小，因此过热保护的成本降低。

5. 发明申请

US20070145947A1 Battery device 有权
标题翻译：电池装置
公开(公告)号：US20070145947A1
公开(公告)日：2007-06-28
申请号：US11635266
申请日：2006-12-07
申请人： Atsushi Sakurai , Kazuaki Sano , Toshiyuki Koike
发明人： Atsushi Sakurai , Kazuaki Sano , Toshiyuki Koike
IPC分类号： H02J7/00
CPC分类号： H02J7/0031 , H01M10/48
摘要： Provided are a battery state monitoring circuit in which charging of a secondary battery in an over-charge detection state is prevented to improve safety, and a battery device including the battery state monitoring circuit. A circuit for consuming a leakage current is provided in the battery state monitoring circuit to prevent the secondary battery from being charged with the leakage current.
摘要翻译：提供一种电池状态监视电路，其中防止了处于过充电检测状态的二次电池的充电以提高安全性，以及包括电池状态监视电路的电池装置。在电池状态监视电路中设置用于消耗泄漏电流的电路，以防止二次电池被泄漏电流充电。

6. 发明授权

US08378635B2 Semiconductor device and rechargeable power supply unit 有权
标题翻译：半导体器件和可充电电源单元
公开(公告)号：US08378635B2
公开(公告)日：2013-02-19
申请号：US12004998
申请日：2007-12-20
申请人： Toshiyuki Koike , Atsushi Sakurai , Kazuaki Sano
发明人： Toshiyuki Koike , Atsushi Sakurai , Kazuaki Sano
IPC分类号： H02J7/00
CPC分类号： H02J7/0031 , H02J2007/0037
摘要： Provided are a semiconductor device and a rechargeable power supply unit which are capable of accurately detecting an overcharge state of a battery even in a case where the battery is charged with a sine wave charger. In a case where a ½ cycle of a charging voltage of the sine wave charger is shorter than a delay time for cancellation of an overdischarge state, when it is detected that a voltage of the battery in the overdischarge state exceeds an overdischarge detection voltage and becomes equal to or higher than an overcharge detection voltage, a delay circuit sets the delay time for cancellation of the overdischarge state to 0 seconds.
摘要翻译：提供了即使在电池被正弦波充电器充电的情况下也能够精确地检测电池的过充电状态的半导体器件和可再充电电源单元。在正弦波充电器的充电电压的1/2周期短于用于消除过放电状态的延迟时间的情况下，当检测到过放电状态的电池的电压超过过放电检测电压并变为等于或高于过充电检测电压，延迟电路将用于消除过放电状态的延迟时间设置为0秒。

7. 发明授权

US07791315B2 Battery state monitoring circuit and battery device 有权
标题翻译：电池状态监测电路和电池装置
公开(公告)号：US07791315B2
公开(公告)日：2010-09-07
申请号：US12005000
申请日：2007-12-20
申请人： Atsushi Sakurai , Kazuaki Sano , Toshiyuki Koike
发明人： Atsushi Sakurai , Kazuaki Sano , Toshiyuki Koike
IPC分类号： H02J7/00
CPC分类号： H02J7/0034 , H02J2007/0037 , H02J2007/0039 , H02J2007/004
摘要： An object of the present invention is to provide a battery state monitoring circuit and a battery device which are capable of normally operating when a charger (301) is connected to an opposite polarity in error, and then correctly connected. In the case where the charger (301) is connected to the opposite polarity in error and then correctly connected, a logic circuit (305) does not output a power-down signal that powers down the respective circuits to the respective circuits by the aid of a power-down preventing circuit (110). As a result, the battery device normally operates without falling into the power-down state.
摘要翻译：本发明的目的是提供一种电池状态监测电路和电池装置，当充电器（301）错误地连接到相反极性时，能够正常工作，然后正确连接。在充电器（301）错误地连接相反极性然后正确连接的情况下，逻辑电路（305）不输出掉电信号，借助于下述方式将相应电路断电到各个电路断电防止电路（110）。结果，电池装置通常在不掉电的状态下工作。

8. 发明申请

US20090179617A1 BATTERY STATE MONITORING CIRCUIT AND BATTERY DEVICE 审中-公开
标题翻译：电池状态监测电路和电池装置
公开(公告)号：US20090179617A1
公开(公告)日：2009-07-16
申请号：US12327097
申请日：2008-12-03
申请人： Toshiyuki Koike , Atsushi Sakurai , Kazuaki Sano , Yoshihisa Tange , Muneharu Kawana
发明人： Toshiyuki Koike , Atsushi Sakurai , Kazuaki Sano , Yoshihisa Tange , Muneharu Kawana
IPC分类号： H02J7/04
CPC分类号： H01M10/482 , H01M10/425
摘要： Provided is a battery state monitoring circuit for manufacturing a battery device at low cost, and a battery device including the same. A charge control transistor and a discharge control transistor are structured so as to be operated based on a low-level signal which is based on a ground voltage (VSS) and a high-level signal which is based on a voltage of a voltage regulator, which is lower than a power supply voltage (VDD) based on a voltage of a battery, respectively. Accordingly, in the charge control transistor and the discharge control transistor, voltages applied to gates thereof become low, whereby a low-breakdown-voltage element can be used. This leads to a reduction in cost for the charge control transistor and the discharge control transistor, leading to a reduction in manufacturing cost for the battery device.
摘要翻译：提供了一种用于以低成本制造电池装置的电池状态监视电路，以及包括该电池状态监视电路的电池装置。电荷控制晶体管和放电控制晶体管被构造成基于基于接地电压（VSS）的低电平信号和基于电压调节器的电压的高电平信号而被操作，其分别低于基于电池电压的电源电压（VDD）。因此，在充电控制晶体管和放电控制晶体管中，施加到其栅极的电压变低，从而可以使用低击穿电压元件。这导致电荷控制晶体管和放电控制晶体管的成本降低，导致电池装置的制造成本降低。

9. 发明申请

US20120056593A1 CHARGE/DISCHARGE CONTROL CIRCUIT AND BATTERY DEVICE 审中-公开
标题翻译：充电/放电控制电路和电池装置
公开(公告)号：US20120056593A1
公开(公告)日：2012-03-08
申请号：US13209671
申请日：2011-08-15
申请人： Atsushi Sakurai , Toshiyuki Koike , Kazuaki Sano , Fumihiko Maetani
发明人： Atsushi Sakurai , Toshiyuki Koike , Kazuaki Sano , Fumihiko Maetani
IPC分类号： H02J7/00
CPC分类号： H02J7/0034
摘要： Provided is a battery device including, in a charge/discharge protection circuit for controlling charge/discharge of a secondary battery by a single bidirectionally conductive field effect transistor, a charge/discharge control circuit with which the layout area is reduced and a leakage current of the bidirectionally conductive field effect transistor is reduced to perform stable operation. The charge/discharge control circuit includes: a switch circuit for controlling a gate of the bidirectionally conductive field effect transistor based on an output of a control circuit for controlling the charge/discharge of the secondary battery; and two Schottky barrier diodes for preventing back-flow of a charge current and a discharge current. The first Schottky barrier diode has a cathode connected to a drain of the bidirectionally conductive field effect transistor, and the second Schottky barrier diode has a cathode connected to a source of the bidirectionally conductive field effect transistor.
摘要翻译：本发明提供一种电池装置，其特征在于，在通过一个双向导电场效应晶体管控制二次电池的充放电的充放电保护电路中，布置面积减小的充放电控制电路和泄漏电流双向导电场效应晶体管被降低以执行稳定的操作。充放电控制电路包括：开关电路，用于基于用于控制二次电池的充电/放电的控制电路的输出来控制双向传导场效应晶体管的栅极; 和两个用于防止充电电流和放电电流反向流动的肖特基势垒二极管。第一肖特基势垒二极管具有连接到双向传导场效应晶体管的漏极的阴极，并且第二肖特基势垒二极管具有连接到双向传导场效应晶体管的源极的阴极。

10. 发明授权

US07923968B2 Charge and discharge control circuit and rechargeable power supply device 有权
标题翻译：充放电控制电路和可充电电源装置
公开(公告)号：US07923968B2
公开(公告)日：2011-04-12
申请号：US12231261
申请日：2008-08-28
申请人： Kazuaki Sano , Kiyoshi Yoshikawa , Toshiyuki Koike , Yoshihisa Tange , Atsushi Sakurai
发明人： Kazuaki Sano , Kiyoshi Yoshikawa , Toshiyuki Koike , Yoshihisa Tange , Atsushi Sakurai
IPC分类号： H02J7/00
CPC分类号： H01M10/48 , H01M10/052 , H01M10/425 , H01M10/44 , H02J7/0031 , H02J7/0073 , H02J7/0093 , H02J2007/0037
摘要： A charge and discharge control circuit which accommodates pulsed charge and pulsed discharge and can control charge and discharge of a secondary battery with safety, and a rechargeable power supply device having the same built therein are provided. The charge and discharge control circuit includes a delay time switching circuit for shortening a delay time of overcharge detection after charge inhibition is canceled. When overcharge is detected after the charge inhibition is canceled, the charge is inhibited in a delay time which is shorter than a normal delay time of the overcharge detection.
摘要翻译：一种充电和放电控制电路，其容纳脉冲电荷和脉冲放电，并且可以安全地控制二次电池的充电和放电，并且提供具有内置的二次电池的可再充电电源装置。充放电控制电路包括延迟时间切换电路，用于在消除电荷禁止之后缩短过充电检测的延迟时间。当在禁止充电禁止之后检测到过充电时，在比过充电检测的正常延迟时间短的延迟时间内禁止充电。

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