公开(公告)号：US06204648B1

公开(公告)日：2001-03-20

申请号：US09488014

申请日：2000-01-20

申请人： Mitsuo Saeki ,  Hidetoshi Yano ,  Hidekiyo Ozawa

发明人： Mitsuo Saeki ,  Hidetoshi Yano ,  Hidekiyo Ozawa

IPC分类号： G05F140

CPC分类号： H02H7/1213 ,  H02H7/16 ,  H02M3/1588 ,  Y02B70/1466

摘要： To avoid burning out a capacitor in a synchronous rectification type DC-to-DC converter due to overvoltages, the synchronous rectification type DC-to-DC converter includes a storage unit storing therein power derived from a power supply, switching elements connecting and disconnecting respective signal paths from power and ground, and a control unit controlling the connecting/disconnecting operations of the switching elements to maintain a voltage output from the storage unit at a predetermined value. The DC/DC converter also includes an overvoltage detecting unit monitoring a voltage derived from the power supply to thereby output an alarm signal when the voltage derived from the power supply exceeds a preselected voltage value, a shortcircuiting unit influencing the connecting conditions of the switching elements when the alarm signal from the overvoltage detecting unit is input therein, whereby the voltage derived from the power supply is shortcircuited, and an interrupting unit interrupting one of the signal paths by the power shortcircuited by the shortcircuiting unit.

摘要翻译： 为了避免由于过电压而在同步整流型DC-DC转换器中烧毁电容器，同步整流型DC-DC转换器包括存储单元，其存储来自电源的功率，各自连接和断开的开关元件 来自电源和地的信号路径，以及控制单元，控制开关元件的连接/断开操作，以将从存储单元输出的电压保持在预定值。 DC / DC转换器还包括过电压检测单元，其监视从电源导出的电压，从而当从电源导出的电压超过预选电压值时输出报警信号;影响开关元件的连接条件的短路单元 当来自过电压检测单元的报警信号被输入时，由电源导出的电压短路，并且中断单元通过由短路单元短路的电力中断信号路径之一。

公开(公告)号：US6147477A

公开(公告)日：2000-11-14

申请号：US884082

申请日：1997-06-27

申请人： Mitsuo Saeki ,  Hidetoshi Yano ,  Hidekiyo Ozawa ,  Seiya Kitagawa ,  Toshiyuki Matsuyama ,  Takashi Matsumoto ,  Kyuichi Takimoto ,  Yoshiaki Sano

发明人： Mitsuo Saeki ,  Hidetoshi Yano ,  Hidekiyo Ozawa ,  Seiya Kitagawa ,  Toshiyuki Matsuyama ,  Takashi Matsumoto ,  Kyuichi Takimoto ,  Yoshiaki Sano

IPC分类号： H02M3/155 ,  G05F1/40 ,  H02M1/00 ,  H02M1/36 ,  H02M3/156

CPC分类号： H02M1/36 ,  H02M3/156 ,  H02M2001/008

摘要： A direct-current to direct-current conversion (DC/DC) apparatus includes a control circuit having an error amplifier for voltage control and controlling a direct-current to direct-current conversion based on a pulse width modulation control using an output of the error amplifier. The error amplifier inputs a voltage signal corresponding to an output voltage of a DC/DC result and a plurality of reference voltage signals. The DC/DC apparatus also includes a soft start capacitor to provide one of the plurality of reference voltage signals. The error amplifier amplifies a difference between the voltage signal corresponding to the output voltage of a DC/DC result and a voltage signal of a lower potential among the plurality of reference voltage signals and, based on the amplified output, carries out the pulse width modulation control. Furthermore, the control circuit includes a circuit for discharging charges corresponding to the output voltage of the DC/DC result when a power supply to the control circuit is turned off. By the constitution, it is possible to easily realize power turn-on/turn-off sequence controls without requiring any special logic circuit, and thus to control rise/fall characteristics of the output voltage without depending on the load.

公开(公告)号：US5572112A

公开(公告)日：1996-11-05

申请号：US412582

申请日：1995-03-29

申请人： Mitsuo Saeki ,  Hidekiyo Ozawa ,  Hidetoshi Yano

发明人： Mitsuo Saeki ,  Hidekiyo Ozawa ,  Hidetoshi Yano

IPC分类号： H02M3/00 ,  G05F1/56 ,  H02M3/156

CPC分类号： H02M3/156 ,  G05F1/56 ,  H02M2001/0022

摘要： h055721120A power supply unit comprising an output controller which is supplied with an input voltage from a voltage source and controls the output voltage, an output voltage detector for detecting the output voltage, a stable operation signal generator that generates a signal for stably operating the output controller, and a reference signal generator for generating a reference signal, wherein the output voltage is produced by controlling the output controller based upon the signals from the output voltage detector, stable operation signal generator and reference signal generator, and wherein provision is made of an input voltage detector for detecting the input voltage and a stable operation signal-level changer for changing the level of the signal in response to fluctuations in the input voltage to improve the operation of the stable operation signal generator.

摘要翻译： h055721120一种电源单元，包括：输出控制器，其被提供有来自电压源的输入电压并控制输出电压;输出电压检测器，用于检测输出电压;稳定运行信号发生器，其产生稳定运行输出的信号 控制器和用于产生参考信号的参考信号发生器，其中通过基于来自输出电压检测器，稳定操作信号发生器和参考信号发生器的信号控制输出控制器来产生输出电压，并且其中提供由 用于检测输入电压的输入电压检测器和用于响应于输入电压波动来改变信号电平的稳定操作信号电平变换器，以改善稳定运行信号发生器的运行。

公开(公告)号：US06486635B1

公开(公告)日：2002-11-26

申请号：US09709380

申请日：2000-11-13

申请人： Kouichi Matsuda ,  Nakazawa Shigeaki ,  Mitsuo Saeki ,  Hidekiyo Ozawa

发明人： Kouichi Matsuda ,  Nakazawa Shigeaki ,  Mitsuo Saeki ,  Hidekiyo Ozawa

IPC分类号： H02J700

CPC分类号： G01R31/3658 ,  G01R19/16542

摘要： Individual voltages of la plurality of batteries or voltage sources which are connected in series and voltages on both ends of the plurality of batteries or voltage sources are detected. An offset value of a differential amplifier is determined through an arithmetic operation for the detected voltages. The offset value thus determined is used to correct the measured values of the battery voltages.

摘要翻译： 检测多个串联连接的多个电池或电压源的单独电压，并且检测多个电池或电压源的两端的电压。 通过对检测到的电压的算术运算来确定差分放大器的偏移值。 由此确定的偏移值用于校正电池电压的测量值。

公开(公告)号：USRE43911E1

公开(公告)日：2013-01-08

申请号：US10383068

申请日：2003-03-07

申请人： Kouichi Matsuda ,  Mitsuo Saeki ,  Nobuo Tanaka ,  Hidekiyo Ozawa

发明人： Kouichi Matsuda ,  Mitsuo Saeki ,  Nobuo Tanaka ,  Hidekiyo Ozawa

IPC分类号： H02J7/24 ,  H02J7/04

CPC分类号： H02J7/0072 ,  H02J9/061

摘要： A control system for charging enabling efficient charging of rechargeable batteries in an electronic apparatus which charges its rechargeable batteries by using a charger circuit when driving the apparatus by using an external power source, including first detecting unit for detecting a differential value between a maximum permissible charging current allowed by the rechargeable batteries and a charging current flowing to the rechargeable batteries; second detecting unit for detecting a maximum usable current by detecting a differential value between a maximum supplyable current allowed by the external power source and the current consumption of the apparatus; third detecting unit for detecting a differential value between a maximum useable current and the charging current flowing to the rechargeable batteries; and control unit for controlling the system in accordance with the differential values detected by the first and third detecting units so that the charger circuit generates the maximum charging current within the range where the charging current flowing to the rechargeable batteries does not exceed either of the maximum permissible charging current and the maximum useable current.

摘要翻译： 一种用于充电的控制系统，其能够在通过使用外部电源驱动装置时通过使用充电器电路对其可再充电电池充电的电子设备中进行充电，包括第一检测单元，用于检测最大容许充电 充电电池允许的电流和流入可再充电电池的充电电流; 第二检测单元，用于通过检测由外部电源允许的最大可供电电流和设备的电流消耗之间的差值来检测最大可用电流; 第三检测单元，用于检测最大可用电流与流向可再充电电池的充电电流之间的差值; 以及控制单元，用于根据由第一和第三检测单元检测的差分值来控制系统，使得充电器电路在流过可再充电电池的充电电流不超过最大值的范围内产生最大充电电流 允许充电电流和最大可用电流。

公开(公告)号：USRE42114E1

公开(公告)日：2011-02-08

申请号：US09548213

申请日：2000-04-12

申请人： Kouichi Matsuda ,  Mitsuo Saeki ,  Nobuo Tanaka ,  Hidekiyo Ozawa

发明人： Kouichi Matsuda ,  Mitsuo Saeki ,  Nobuo Tanaka ,  Hidekiyo Ozawa

IPC分类号： H01M10/46 ,  H02J9/06

CPC分类号： H02J7/0072 ,  H02J9/061

摘要： A control system for charging enabling efficient charging of rechargeable batteries in an electronic apparatus which charges its rechargeable batteries by using a charger circuit when driving the apparatus by using an external power source, including first detecting unit for detecting a differential value between a maximum permissible charging current allowed by the rechargeable batteries and a charging current flowing to the rechargeable batteries; second detecting unit for detecting a maximum usable current by detecting a differential value between a maximum supplyable current allowed by the external power source and the current consumption of the apparatus; third detecting unit for detecting a differential value between a maximum useable current and the charging current flowing to the rechargeable batteries; and control unit for controlling the system in accordance with the differential values detected by the first and third detecting units so that the charger circuit generates the maximum charging current within the range where the charging current flowing to the rechargeable batteries does not exceed either of the permissible charging current and the maximum useable current.

摘要翻译： 一种用于充电的控制系统，其能够在通过使用外部电源驱动装置时通过使用充电器电路对其可再充电电池充电的电子设备中进行充电，包括第一检测单元，用于检测最大容许充电 充电电池允许的电流和流入可再充电电池的充电电流; 第二检测单元，用于通过检测由外部电源允许的最大可供电电流和设备的电流消耗之间的差值来检测最大可用电流; 第三检测单元，用于检测最大可用电流与流向可再充电电池的充电电流之间的差值; 以及控制单元，用于根据由第一和第三检测单元检测到的差分值来控制系统，使得充电器电路在流过可再充电电池的充电电流不超过允许的范围内产生最大充电电流 充电电流和最大可用电流。

公开(公告)号：US06724175B1

公开(公告)日：2004-04-20

申请号：US09716213

申请日：2000-11-21

申请人： Kouichi Matsuda ,  Hidekiyo Ozawa ,  Kazuhiko Itakura ,  Kyuichi Takimoto

发明人： Kouichi Matsuda ,  Hidekiyo Ozawa ,  Kazuhiko Itakura ,  Kyuichi Takimoto

IPC分类号： G05F140

CPC分类号： H02M3/156

摘要： A power supply control device, a power supply control circuit, a power supply control method, and an electronic apparatus wherein a determination is made of whether or not a switching element therein is in an ON state. When the switching element is in the ON state, a voltage generated across the switching element is detected in accordance with a current flowing through the switching element. In accordance with the detected voltage, the switching element is controlled and thereby an output voltage is controlled.

摘要翻译： 电源控制装置，电源控制电路，电源控制方法和电子装置，其中确定其中的开关元件是否处于接通状态。 当开关元件处于导通状态时，根据流过开关元件的电流来检测开关元件两端产生的电压。 根据检测到的电压，控制开关元件，从而控制输出电压。

公开(公告)号：US06657415B2

公开(公告)日：2003-12-02

申请号：US09930151

申请日：2001-08-16

申请人： Mitsuo Saeki ,  Kouichi Matsuda ,  Hidekiyo Ozawa ,  Shigeo Tanaka

发明人： Mitsuo Saeki ,  Kouichi Matsuda ,  Hidekiyo Ozawa ,  Shigeo Tanaka

IPC分类号： H02J700

CPC分类号： H02J7/045

摘要： When starting charging of an internal battery as a result of connection of an external power source by an AC adapter, a charging control unit sets a first charging voltage at which the charging capacity of the internal battery is maximized. When starting the charging from recognition of reduced capacity of the internal battery due to its self-discharge in desk-top use where the AC adapter is in connection at all times, the charging control unit sets a second charging voltage lower than the first charging voltage to prevent the battery from degrading.

摘要翻译： 当通过AC适配器连接外部电源而开始对内部电池充电时，充电控制单元设定使内部电池的充电容量最大化的第一充电电压。 当由于在任何时候AC适配器连接的桌面使用中的自放电而识别内部电池的容量降低而开始充电时，充电控制单元设定低于第一充电电压的第二充电电压 以防止电池劣化。

公开(公告)号：US07960946B2

公开(公告)日：2011-06-14

申请号：US12032237

申请日：2008-02-15

申请人： Hidekiyo Ozawa ,  Toru Nakamura

发明人： Hidekiyo Ozawa ,  Toru Nakamura

IPC分类号： H02J7/00

CPC分类号： H02J7/045 ,  H02J7/085

摘要： A power supply circuit charging a secondary battery by a DC-DC converter using a switching element and an inductance element includes a current adjustment circuit. The current adjustment circuit adjusts a charging current of the secondary battery by turning on/off the switching element according to a voltage difference of a lower one of a reference voltage and a first control voltage corresponding to a temperature of the secondary battery from a current detection voltage corresponding to the charging current of the secondary battery.

摘要翻译： 使用开关元件和电感元件由DC-DC转换器对二次电池充电的电源电路包括电流调节电路。 电流调节电路通过根据电流检测对应于二次电池的温度的基准电压和第一控制电压的下限的电压差来接通/关断开关元件来调整二次电池的充电电流 对应于二次电池的充电电流的电压。

公开(公告)号：US07957165B2

公开(公告)日：2011-06-07

申请号：US12032016

申请日：2008-02-15

申请人： Morihito Hasegawa ,  Hidekiyo Ozawa

发明人： Morihito Hasegawa ,  Hidekiyo Ozawa

IPC分类号： H02M1/36

CPC分类号： H02M1/36 ,  H02M1/32 ,  H02M3/156 ,  Y10S323/901

摘要： A DC-DC conversion circuit is configured by including a plurality of control signal generation circuits, a plurality of soft-start control circuits, and a start control circuit. The plurality of control signal generation circuits correspond to the plurality of control signals, and generate a corresponding control signal of the plurality of control signals based on a corresponding output value of a plurality of output values. The plurality of soft-start control circuits correspond to the plurality of control signals, and control a variation of the corresponding control signal at a start time of the DC-DC conversion circuit. The start control circuit instructs the corresponding soft-start control circuit to start operation in accordance with a change of the control signal taking part in an output control at the start time of the DC-DC conversion circuit.

摘要翻译： DC-DC转换电路通过包括多个控制信号生成电路，多个软启动控制电路和起动控制电路构成。 多个控制信号生成电路对应于多个控制信号，并且基于多个输出值的相应输出值生成多个控制信号的对应控制信号。 多个软启动控制电路对应于多个控制信号，并且在DC-DC转换电路的开始时间控制对应的控制信号的变化。 启动控制电路指示相应的软启动控制电路根据在DC-DC转换电路的开始时间中参与输出控制的控制信号的变化而开始工作。