公开(公告)号：US20070210649A1

公开(公告)日：2007-09-13

申请号：US11526051

申请日：2006-09-25

申请人： Hidekiyo Ozawa ,  Morihito Hasegawa

发明人： Hidekiyo Ozawa ,  Morihito Hasegawa

IPC分类号： H02J1/00

CPC分类号： H02M3/156 ,  H02M2001/008 ,  H02M2001/009 ,  Y10T307/281 ,  Y10T307/406

摘要： An object of the present invention is to provide a DC-DC converter control circuit capable of maintaining, even when any one of a plural number of DC-DC converters enters the abnormal state due to the occurrence of a failure, a voltage relationship between the output voltage of the faulty DC-DC converter and the output voltage of another DC-DC converter. An error amplifier ERA1G has an inverting input, a first non-inverting input, and a second non-inverting input. A first divided voltage VV1 provided from a first voltage divider circuit VD1 is fed into the inverting input; a reference voltage e1G from ground is fed into the first non-inverting input; and a second divided voltage VV2 provided from a second voltage divider circuit VD2 is fed into the second non-inverting input. The error amplifier ERA1G amplifies the error between the lower of the two voltage inputs fed into the two non-inverting inputs (i.e. the lower of the reference voltage e1G and the second divided voltage VV2), and the first divided voltage VV1 fed into the inverting input. The output terminal of the error amplifier ERA1G is connected to the input terminal of a PWM unit P1G.

摘要翻译： 本发明的一个目的是提供一种DC-DC转换器控制电路，即使当多个DC-DC转换器中的任何一个由于发生故障而进入异常状态时，也能够维持 故障DC-DC转换器的输出电压和另一个DC-DC转换器的输出电压。 误差放大器ERA1G具有反相输入，第一同相输入和第二同相输入。 从第一分压器电路VD1提供的第一分压VV1馈送到反相输入端; 来自地的参考电压e 1 G被馈送到第一同相输入端; 并且从第二分压器电路VD 2​​提供的第二分压VV 2被馈送到第二同相输入端。 误差放大器ERA 1 G放大馈入两个非反相输入端的两个电压输入的较低端之间的误差（即，参考电压e 1 G和第二分压VV 2的较低者），第一分压 VV 1馈入反相输入。 误差放大器ERA1G的输出端连接到PWM单元P 1 G的输入端。

公开(公告)号：US20070194766A1

公开(公告)日：2007-08-23

申请号：US11447009

申请日：2006-06-06

申请人： Hidekiyo Ozawa ,  Morihito Hasegawa ,  Toru Nakamura

发明人： Hidekiyo Ozawa ,  Morihito Hasegawa ,  Toru Nakamura

IPC分类号： G05F1/577

CPC分类号： H02M3/156 ,  H02M3/33561 ,  H02M2001/008 ,  Y10T307/414

摘要： An object of the present invention is to provide a DC-DC converter control circuit that, even when a plurality of output voltages of DC-DC converters is controlled independently of one another, can maintain a predetermined relationship of voltages established among the output voltages. A first reference voltage with which a high-potential back-gate voltage is controlled and a second reference voltage with which a supply voltage is controlled are dynamically controlled to be varied independently from one another. A supply voltage is applied to the inverting input terminal of a second differential-input amplifier. The second reference voltage is applied to the first non-inverting input terminal of the second differential-input amplifier, and the first reference voltage for a first DC-DC converter is applied to the second non-inverting input terminal thereof. The second differential-input amplifier amplifies the difference between a lower one of the first and second reference voltages applied to the two non-inverting input terminals thereof and the supply voltage applied to the inverting input terminal thereof.

摘要翻译： 本发明的目的是提供一种DC-DC转换器控制电路，即使在DC-DC转换器的多个输出电压彼此独立地被控制的情况下，也可以保持在输出电压之间建立的电压的预定关系。 控制高电位背栅极电压的第一参考电压和控制电源电压的第二参考电压被动态地控制以彼此独立地变化。 电源电压被施加到第二差分输入放大器的反相输入端子。 第二参考电压被施加到第二差分输入放大器的第一非反相输入端，并且第一DC-DC转换器的第一参考电压被施加到第二非反相输入端。 第二差分输入放大器放大施加到其两个非反相输入端的第一和第二参考电压中的较低的一个和施加到其反相输入端的电源电压之间的差。

公开(公告)号：US07221131B2

公开(公告)日：2007-05-22

申请号：US11101473

申请日：2005-04-08

申请人： Hidekiyo Ozawa ,  Hidenobu Ito ,  Chikara Tsuchiya ,  Yasushige Ogawa

发明人： Hidekiyo Ozawa ,  Hidenobu Ito ,  Chikara Tsuchiya ,  Yasushige Ogawa

IPC分类号： G05F1/00 ,  G11C5/14 ,  H03K5/08

CPC分类号： H02M3/158 ,  H02M3/156

摘要： A DC-DC converter for generating power supply voltage differing from input voltage, while operating a semiconductor circuit at a predetermined speed regardless of differences between devices or changes in the operation environment. An output voltage control circuit compares an oscillation signal, which is provided from a ring oscillator of the semiconductor circuit, with a triangular wave signal, which is provided from an oscillator of the DC-DC converter, and changes the output voltage of the DC-DC converter in accordance with the comparison result. This substantially equalizes the oscillation signal of the ring oscillator with the triangular wave signal, which functions as a reference signal, and operates the semiconductor circuit at a speed that is in accordance with the triangular wave signal.

摘要翻译： DC-DC转换器，用于产生与输入电压不同的电源电压，同时以预定速度操作半导体电路，而不管设备之间的差异或操作环境的改变。 输出电压控制电路将从半导体电路的环形振荡器提供的振荡信号与由DC-DC转换器的振荡器提供的三角波信号进行比较，并将DC- DC转换器根据比较结果。 这使得用作为参考信号的三角波信号实质上均衡环形振荡器的振荡信号，并以与三角波信号相应的速度操作半导体电路。

公开(公告)号：US07116258B2

公开(公告)日：2006-10-03

申请号：US11387694

申请日：2006-03-24

申请人： Kazuyoshi Arimura ,  Atsushi Hayakawa ,  Hidekiyo Ozawa

发明人： Kazuyoshi Arimura ,  Atsushi Hayakawa ,  Hidekiyo Ozawa

IPC分类号： 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：US20060164050A1

公开(公告)日：2006-07-27

申请号：US11121084

申请日：2005-05-04

申请人： Morihito Hasegawa ,  Hidekiyo Ozawa

发明人： Morihito Hasegawa ,  Hidekiyo Ozawa

IPC分类号： G05F1/618 ,  G05F1/56

CPC分类号： H02M3/1584

摘要： A self-excited multi-phase DC-DC converter having satisfactory responsiveness when its load suddenly changes. A control unit of the converter compares output currents of first and second converter units. Based on the comparison result, the control unit generates control signals to operate a converter unit through which a smaller output current flows. For example, when an output voltage of the converter decreases due to a sudden change in the load while the first converter unit is operating to supply current, the second converter unit through which a smaller output current flows is operated to increase the output voltage.

摘要翻译： 一种自激式多相DC-DC转换器，当其负载突然变化时具有令人满意的响应能力。 转换器的控制单元比较第一和第二转换器单元的输出电流。 基于比较结果，控制单元产生控制信号以操作较小输出电流流过的转换器单元。 例如，当第一转换器单元正在运行以提供电流时，由于负载突然变化而导致转换器的输出电压下降，所以操作较小输出电流流动的第二转换器单元被增加输出电压。

公开(公告)号：US06911806B2

公开(公告)日：2005-06-28

申请号：US10734170

申请日：2003-12-15

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, basing the conversion 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 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.

摘要翻译： 直流到直流转换（DC / DC）装置包括具有用于电压控制的误差放大器的控制电路，利用误差放大器的输出根据脉宽调制控制的转换。 误差放大器输入对应于DC / DC结果和多个参考电压信号的输出电压的电压信号。 DC / DC装置还包括软启动电容器，以提供多个参考电压信号中的一个。 误差放大器放大对应于DC / DC结果的输出电压的电压信号与多个参考电压信号中较低电位的电压信号之间的差值，并执行脉宽调制控制。 此外，当控制电路的电源被断开时，控制电路包括用于放电对应于DC / DC结果的输出电压的电荷的电路。

公开(公告)号：US06897635B2

公开(公告)日：2005-05-24

申请号：US10412427

申请日：2003-04-14

申请人： Hidekiyo Ozawa ,  Shigeo Tanaka

发明人： Hidekiyo Ozawa ,  Shigeo Tanaka

IPC分类号： G01R31/36 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00 ,  H01M10/46

CPC分类号： H02J7/0047 ,  H02J2007/005

摘要： A remaining charge predicting method which improves the precision of predicting the remaining charge of a rechargeable battery. A battery pack has a measuring circuit which monitors a charge current, discharge current, the voltage of the rechargeable battery and the temperature of the battery. The measuring circuit notifies a power management microcomputer, provided in a portable device, of the measured current, voltage and temperature. The power management microcomputer predicts the remaining charge of the battery based on the received measured values. The battery pack does not perform data processing for predicting the remaining charge.

摘要翻译： 一种提高预测可再充电电池的剩余电量的精度的剩余电荷预测方法。 电池组具有监测充电电流，放电电流，可再充电电池的电压和电池温度的测量电路。 测量电路通知便携式设备中提供的电源管理微计算机测量的电流，电压和温度。 电源管理微型计算机基于接收的测量值预测电池的剩余电量。 电池组不执行用于预测剩余电量的数据处理。

公开(公告)号：US06498459B1

公开(公告)日：2002-12-24

申请号：US09437288

申请日：1999-11-09

申请人： Masafumi Okumura ,  Hidekiyo Ozawa

发明人： Masafumi Okumura ,  Hidekiyo Ozawa

IPC分类号： H02J700

CPC分类号： H02J7/0068

摘要： An electronic equipment is connectable to a battery unit which includes an electronic circuit and a battery, and is provided with a power supply circuit to supply a power supply voltage directly to the electronic circuit.

摘要翻译： 电子设备可连接到包括电子电路和电池的电池单元，并且设置有电源电路，用于将电源电压直接提供给电子电路。

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：US06452364B1

公开(公告)日：2002-09-17

申请号：US09532790

申请日：2000-03-22

申请人： Mitsuo Saeki ,  Seiya Kitagawa ,  Hidekiyo Ozawa ,  Toshiyuki Matsuyama

发明人： Mitsuo Saeki ,  Seiya Kitagawa ,  Hidekiyo Ozawa ,  Toshiyuki Matsuyama

IPC分类号： H02J700

CPC分类号： H02J7/0068 ,  H02J7/022

摘要： A battery charge control circuit, a battery charging device, and a battery charge control method for controlling the charging of a battery are provided. A power source supplies a current to a load, and a battery also supplies a current to the load. If the current supply capacity of the power source is restricted when the power source charges the battery, the charging of the battery is not stopped. Thus, a wrong operation can be avoided, and more reliable battery charging can be performed.

摘要翻译： 提供了一种用于控制电池充电的电池充电控制电路，电池充电装置和电池充电控制方法。 电源向负载提供电流，电池还向负载提供电流。 如果当电源为电池充电时电源的电流容量受到限制，则电池的充电不会停止。 因此，可以避免错误的操作，并且可以执行更可靠的电池充电。