公开(公告)号：US07075463B2

公开(公告)日：2006-07-11

申请号：US10948643

申请日：2004-09-24

申请人： Kazuyoshi Arimura ,  Atsushi Hayakawa ,  Hidekiyo Ozawa

发明人： Kazuyoshi Arimura ,  Atsushi Hayakawa ,  Hidekiyo Ozawa

IPC分类号： H03M1/06

CPC分类号： H03M1/0621 ,  H03M1/12 ,  H03M1/66

摘要： A reference voltage generating circuit generates a reference voltage Vref. An A/D converting circuit compares an analog input voltage Vin with the reference voltage Vref to convert the analog input voltage Vin to a digital output value Dout. A measured value storing circuit stores a measured value of the reference voltage Vref in advance and outputs the stored measured value. A user of an A/D converter corrects the digital output value Dout from the A/D converting circuit by use of the measured value of the reference voltage Vref outputted from the measured value storing circuit, thereby obtaining a digital value representing the analog input voltage Vin accurately irrespective of the accuracy of the reference voltage Vref.

公开(公告)号：US20050258995A1

公开(公告)日：2005-11-24

申请号：US10948643

申请日：2004-09-24

申请人： Kazuyoshi Arimura ,  Atsushi Hayakawa ,  Hidekiyo Ozawa

发明人： Kazuyoshi Arimura ,  Atsushi Hayakawa ,  Hidekiyo Ozawa

IPC分类号： H03M1/10 ,  H03M1/06 ,  H03M1/12 ,  H03M1/36 ,  H03M1/66

CPC分类号： H03M1/0621 ,  H03M1/12 ,  H03M1/66

摘要： A reference voltage generating circuit generates a reference voltage Vref. An A/D converting circuit compares an analog input voltage Vin with the reference voltage Vref to convert the analog input voltage Vin to a digital output value Dout. A measured value storing circuit stores a measured value of the reference voltage Vref in advance and outputs the stored measured value. A user of an A/D converter corrects the digital output value Dout from the A/D converting circuit by use of the measured value of the reference voltage Vref outputted from the measured value storing circuit, thereby obtaining a digital value representing the analog input voltage Vin accurately irrespective of the accuracy of the reference voltage Vref.

摘要翻译： 参考电压产生电路产生参考电压Vref。 A / D转换电路将模拟输入电压Vin与参考电压Vref进行比较，以将模拟输入电压Vin转换为数字输出值Dout。 测量值存储电路预先存储参考电压Vref的测量值，并输出存储的测量值。 A / D转换器的用户通过使用从测量值存储电路输出的参考电压Vref的测量值来校正来自A / D转换电路的数字输出值Dout，从而获得表示模拟输入电压的数字值 Vin与参考电压Vref的精度无关。

公开(公告)号：US20050017676A1

公开(公告)日：2005-01-27

申请号：US10665406

申请日：2003-09-22

申请人： Kyuichi Takimoto ,  Hidekiyo Ozawa

发明人： Kyuichi Takimoto ,  Hidekiyo Ozawa

IPC分类号： G06F1/28 ,  H01M10/44 ,  H02H7/18 ,  H02J7/00 ,  H02J7/02 ,  H04M1/02

CPC分类号： H02J7/022 ,  H02J7/0031

摘要： A portable device for preventing overcharging of a secondary battery resulting from contact failure of a voltage detection terminal. The portable device includes a charging circuit for charging the secondary battery when a battery pack, which includes the secondary battery, is connected to the portable device. The charging circuit includes a charging terminal, which is used to supply the secondary battery with charging current, and a voltage detection terminal, which is used to detect voltage of the secondary battery. The charging circuit stops charging the secondary battery when voltage abnormality is detected at the voltage detection terminal.

摘要翻译： 一种用于防止由电压检测端子的接触故障引起的二次电池的过充电的便携式装置。 便携式装置包括充电电路，用于在包括二次电池的电池组连接到便携式装置时对二次电池进行充电。 充电电路包括用于向二次电池供给充电电流的充电端子和用于检测二次电池的电压的电压检测端子。 当在电压检测端检测到电压异常时，充电电路对二次电池进行充电。

公开(公告)号：US06492791B1

公开(公告)日：2002-12-10

申请号：US09528201

申请日：2000-03-17

申请人： Mitsuo Saeki ,  Masafumi Okumura ,  Shigeo Tanaka ,  Hidekiyo Ozawa

发明人： Mitsuo Saeki ,  Masafumi Okumura ,  Shigeo Tanaka ,  Hidekiyo Ozawa

IPC分类号： H02J700

CPC分类号： H01M10/425 ,  H02H7/18 ,  H02J7/0026 ,  H02J2007/0037 ,  H02J2007/004

摘要： A protection method for preventing battery cells from over-discharging and being overcharged, a control circuit, and a battery unit are provided. In the protection method, when a set signal “1” is supplied to a set terminal, a flip-flop outputs “1”. The gate of a discharge control FET then becomes “1”, so that the discharge control FET is OFF regardless of a discharge control signal supplied from a voltage monitor circuit. When a reset signal “1” is supplied to a reset terminal, the flip-flop outputs +0”. The discharge control FET is then switched on and off in accordance with the output of a discharge control circuit of the voltage monitor circuit. In this manner, battery cells connected to an electronic device do not over-discharge, even when they are left unused for a long period of time. Thus, the battery unit can be prevented from deteriorating and shortening the life thereof.

摘要翻译： 提供一种用于防止电池过度放电和过充电的保护方法，控制电路和电池单元。 在保护方法中，当设定信号“1”被提供给设定端子时，触发器输出“1”。 然后，放电控制FET的栅极变为“1”，使得放电控制FET不管从电压监视电路提供的放电控制信号如何都是OFF的。 当复位信号“1”被提供给复位端时，触发器输出+0“，然后根据电压监视电路的放电控制电路的输出，对放电控制FET进行接通和断开 这样，即使长时间不使用的情况下，连接到电子设备的电池单元也不会过度放电，因此能够防止电池单元的劣化，缩短寿命。

公开(公告)号：US06465984B2

公开(公告)日：2002-10-15

申请号：US09729850

申请日：2000-12-06

申请人： Kazuhito Fukuoka ,  Nobuo Tanaka ,  Hidekiyo Ozawa

发明人： Kazuhito Fukuoka ,  Nobuo Tanaka ,  Hidekiyo Ozawa

IPC分类号： H02J700

CPC分类号： G06F1/1613 ,  G06F1/1635 ,  G06F1/263 ,  H02J7/345 ,  H02J9/061

摘要： An electronic apparatus system includes a battery pack housing batteries and a battery pack connection section connecting the battery pack to the electronic apparatus, the electronic apparatus operable with one of electric power from an external power supply and electric power from the battery pack. A pseudo battery pack includes a power holding unit holding electric power to be supplied to the electronic apparatus, wherein if the external power supply is used and the external power supply fails to supply the electric power, the pseudo battery pack is mounted on the battery pack connection section.

摘要翻译： 电子装置系统包括容纳电池和将电池组连接到电子装置的电池组连接部的电池组，该电子装置可以利用来自外部电源的电力和来自电池组的电力进行操作。 伪电池组包括保持供给到电子设备的电力的电力保持单元，其中如果使用外部电源并且外部电源不能供应电力，则将所述伪电池组安装在电池组 连接部分。

公开(公告)号：US6020718A

公开(公告)日：2000-02-01

申请号：US763793

申请日：1996-12-11

申请人： Hidekiyo Ozawa ,  Nobuo Tanaka ,  Masami Itoyama ,  Yoshiro Takeda

发明人： Hidekiyo Ozawa ,  Nobuo Tanaka ,  Masami Itoyama ,  Yoshiro Takeda

IPC分类号： G01R31/36 ,  G06F1/28 ,  H02H7/18 ,  H02J7/00

CPC分类号： G01R31/3679 ,  G01R31/3658 ,  H02H7/18 ,  H02J7/0021

摘要： A battery capacity predicting method predicts a remaining capacity of a battery unit including a plurality of battery cells connected in series in an apparatus which uses the battery unit. The battery capacity predicting method includes the steps of comparing output voltages of each of the battery cells, and predicting the remaining capacity of the battery unit based on at least one of a minimum voltage and a maximum voltage out of the compared output voltages of the battery cells.

摘要翻译： 电池容量预测方法预测包括在使用电池单元的装置中串联连接的多个电池单元的电池单元的剩余容量。 电池容量预测方法包括以下步骤：比较每个电池单元的输出电压，并且基于电池的比较输出电压中的最小电压和最大电压中的至少一个来预测电池单元的剩余容量 细胞。

公开(公告)号：US5905361A

公开(公告)日：1999-05-18

申请号：US786363

申请日：1997-01-17

申请人： Mituo Saeki ,  Hidekiyo Ozawa ,  Tsutomu Suzui

发明人： Mituo Saeki ,  Hidekiyo Ozawa ,  Tsutomu Suzui

IPC分类号： H02J7/02 ,  H01M2/10 ,  H01M10/42 ,  H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  H02J7/10 ,  H02J7/34

CPC分类号： H02J7/0004 ,  H01M10/425 ,  H01M10/44 ,  H01M10/441 ,  H01M10/46 ,  H02J7/0013 ,  H02J7/0024 ,  H02J7/0031 ,  H02J7/0068 ,  H02J7/0073 ,  H02J7/022

摘要： A charging-and-discharging device in an electronic apparatus includes a rechargeable battery and a charging device for charging the battery. The charging-and-discharging device includes a switching circuit electrically isolating one terminal side of the battery from a ground side of the electronic apparatus. The charging-and-discharging device further includes a charge control section controlling the isolating of the one terminal side of the battery from the ground side of the electronic apparatus by turning off the switching circuit during charging of the battery. In the charging-and-discharging device, the one terminal side of the battery is isolated from the ground side of the electronic apparatus by the switching circuit during charging of the battery and a closed loop including the charging device and the battery is established to charge the battery.

摘要翻译： 电子设备中的充放电装置包括可充电电池和用于对电池充电的充电装置。 充放电装置包括将电池的一个端子侧与电子设备的接地侧电隔离的开关电路。 充放电装置还包括充电控制部，其通过在电池充电期间关闭开关电路来控制电池的一个端子侧与电子设备的接地侧的隔离。 在充放电装置中，在电池充电期间，电池的一个端子侧通过开关电路与电子设备的接地侧隔离，并且建立包括充电装置和电池的闭环以充电 电池。