公开(公告)号：US06566766B2

公开(公告)日：2003-05-20

申请号：US10097832

申请日：2002-03-15

申请人： Kouichi Matsuda ,  Mitsuo Saeki ,  Hidekiyo Ozawa

发明人： Kouichi Matsuda ,  Mitsuo Saeki ,  Hidekiyo Ozawa

IPC分类号： H02J100

CPC分类号： H02M1/10 ,  Y10T307/675 ,  Y10T307/696 ,  Y10T307/707 ,  Y10T307/858

摘要： In a DC—DC converter circuit having a plurality of input terminals connected to a plurality of DC power supplies, and an output terminal, the DC—DC converter circuit includes a power supply selection section for selecting a DC power supply of lowest voltage on the condition that the voltage is not less than a predetermined voltage, and a step-down type of regulator section for converting the voltage of the DC power supply selected by the power supply selection section into a predetermined voltage lower than the voltage of the DC power supply selected by the power supply selection section, and outputting the converted voltage through the output terminal.

公开(公告)号：US06414403B1

公开(公告)日：2002-07-02

申请号：US09158879

申请日：1998-09-23

申请人： Seiya Kitagawa ,  Mitsuo Saeki ,  Hidekiyo Ozawa

发明人： Seiya Kitagawa ,  Mitsuo Saeki ,  Hidekiyo Ozawa

IPC分类号： H02M700

摘要： A power unit having a built-in battery to supply voltage from the battery over a long period of time by utilizing fully the capabilities of the built-in battery. The power unit supplies electric power to a load even when a battery with a higher battery voltage than the external power source voltage is used by charging the battery from an external power source even when the external power source voltage is lower than the battery voltage. By charging the battery when electric power is supplied to a load from an external power source, the power unit supplies electric power to the load from the battery when the supply of electricity from an external power source is cut off. The power unit includes a having converter to boost output voltage from the battery and to supply the voltage to the load when the battery is discharged and the external power source voltage is higher than the battery voltage. Alternatively, the power unit includes a converter to boost the external power source voltage and to charge the battery when using the battery with a voltage lower than the external power source voltage.

公开(公告)号：US06404076B1

公开(公告)日：2002-06-11

申请号：US09690023

申请日：2000-10-17

申请人： Kouichi Matsuda ,  Mitsuo Saeki ,  Hidekiyo Ozawa

发明人： Kouichi Matsuda ,  Mitsuo Saeki ,  Hidekiyo Ozawa

IPC分类号： H02J300

CPC分类号： H02M1/10 ,  Y10T307/675 ,  Y10T307/696 ,  Y10T307/707 ,  Y10T307/858

摘要： In a DC-DC converter circuit having a plurality of input terminals connected to a plurality of DC power supplies, and an output terminal, the DC-DC converter circuit includes a power supply selection section for selecting a DC power supply of lowest voltage on the condition that the voltage is not less than a predetermined voltage, and a step-down type of regulator section for converting the voltage of the DC power supply selected by the power supply selection section into a predetermined voltage lower than the voltage of the DC power supply selected by the power supply selection section, and outputting the converted voltage through the output terminal.

摘要翻译： 在具有连接到多个DC电源的多个输入端子的DC-DC转换器电路和输出端子中，所述DC-DC转换器电路包括：电源选择部，用于选择所述DC-DC转换电路中的最低电压的直流电源; 条件是电压不小于预定电压;以及降压型调节器部分，用于将由电源选择部分选择的直流电源的电压转换成低于直流电源电压的预定电压 由电源选择部选择，并通过输出端子输出转换后的电压。

公开(公告)号：US5717318A

公开(公告)日：1998-02-10

申请号：US783003

申请日：1997-01-14

申请人： Kouichi Matsuda ,  Mitsuo Saeki ,  Hidetoshi Yano ,  Hidekiyo Ozawa

发明人： Kouichi Matsuda ,  Mitsuo Saeki ,  Hidetoshi Yano ,  Hidekiyo Ozawa

IPC分类号： H02J1/00 ,  H02M3/07 ,  H02M7/515

CPC分类号： H02M3/07

摘要： FET's lying on a switching circuit are used to execute a switched capacitor action. The FET's connect a first capacitor to a battery to charge the former at an input power voltage, and after charging, disconnect the first capacitor from the battery but simultaneously connect the first capacitor to a second capacitor to transfer accumulated electric charges to the latter. A control circuit including a comparator and a voltage controlled oscillator monitors an output voltage from the second capacitor and performs a switching control so that the output voltage is maintained at a specific level.

摘要翻译： 位于开关电路上的FET用于执行开关电容器动作。 FET将第一电容器连接到电池，以输入电源电压对前者充电，并且在充电之后，将第一电容器与电池断开，同时将第一电容器连接到第二电容器以将累积的电荷转移到后者。 包括比较器和压控振荡器的控制电路监视来自第二电容器的输出电压，并进行开关控制，使得输出电压保持在特定的电平。

公开(公告)号：US07944190B2

公开(公告)日：2011-05-17

申请号：US11889636

申请日：2007-08-15

申请人： Hidekiyo Ozawa ,  Morihito Hasegawa

发明人： Hidekiyo Ozawa ,  Morihito Hasegawa

IPC分类号： G05F1/565

CPC分类号： H02M3/1588 ,  H02J7/0065 ,  H02J7/0068 ,  Y02B40/90 ,  Y02B70/1466 ,  Y10S323/906

摘要： The control circuit 30 of power supply unit and power supply unit 10 controlling output power with electric power supplied from the external power 15, comprise a monitoring portion 40 monitoring current I1 and voltage outputted from the external power supply 15 and output power of the external power supply 15 and a setting portion e1 which sets an upper limit value of current outputted from the external power supply 15 based on a monitoring result of the monitoring portion 40.

摘要翻译： 供电单元的控制电路30和从外部电源15供给的电力来控制输出功率的电源单元10包括监视电流I1和外部电源15输出的电压的监视部40以及外部电力的输出功率 电源15和设定部e1，其基于监视部40的监视结果设定从外部电源15输出的电流的上限值。

公开(公告)号：US07928601B2

公开(公告)日：2011-04-19

申请号：US11101483

申请日：2005-04-08

申请人： Hidekiyo Ozawa ,  Hidenobu Ito ,  Chikara Tsuchiya

发明人： Hidekiyo Ozawa ,  Hidenobu Ito ,  Chikara Tsuchiya

IPC分类号： H02J1/00

CPC分类号： H02J1/08 ,  H02J2001/008 ,  H02M2001/0022 ,  H02M2001/009 ,  Y10T307/461

摘要： A DC-DC converter for controlling the order for providing a semiconductor integrated circuit device with a plurality of power supply voltages. A switch control circuit controls activation and inactivation of a transistor of the switch circuit based on the comparison result of a first voltage and a reference voltage and a notification signal provided to the switch control circuit. The switch control circuit generates a second voltage that is higher than the first voltage when the first voltage is higher than the reference voltage and the notification signal indicates that other semiconductor integrated circuit devices are ready to operate.

摘要翻译： 一种DC-DC转换器，用于控制提供具有多个电源电压的半导体集成电路器件的顺序。 开关控制电路基于第一电压和参考电压的比较结果以及提供给开关控制电路的通知信号来控制开关电路的晶体管的激活和失活。 当第一电压高于参考电压时，开关控制电路产生高于第一电压的第二电压，并且通知信号指示其他半导体集成电路器件准备运行。

公开(公告)号：US07423415B2

公开(公告)日：2008-09-09

申请号：US11350720

申请日：2006-02-10

申请人： Morihito Hasegawa ,  Hidekiyo Ozawa

发明人： Morihito Hasegawa ,  Hidekiyo Ozawa

IPC分类号： G05F1/00

CPC分类号： H02M3/1588 ,  H02M3/1584 ,  Y02B70/1466

摘要： A differential output DC-DC converter capable of decreasing power consumption is presented. The differential output DC-DC converter 1 comprises output terminals VP and VM connected to both ends of load, and a switching regulator 10 for passing a source current. It further comprises a third transistor FET3, a choke coil L2, and a fourth transistor FET4 for rectifying a sink current in a flowing direction, and further a second regulator for allowing the sink current to flow, and issuing a voltage higher than a grounding point GND voltage and lower than a voltage of an output terminal VP, to an output terminal VM.

摘要翻译： 提出了能够降低功耗的差分输出DC-DC转换器。 差分输出DC-DC转换器1包括连接到负载两端的输出端子VP和VM以及用于使源电流通过的开关调节器10。 它还包括用于整流流动方向的吸收电流的第三晶体管FET 3，扼流线圈L 2和第四晶体管FET 4，以及用于允许吸收电流流动的第二调节器，并且发出高于 接地点GND电压并低于输出端子VP的电压输出到输出端子VM。

公开(公告)号：US20080052550A1

公开(公告)日：2008-02-28

申请号：US11889636

申请日：2007-08-15

申请人： Hidekiyo Ozawa ,  Morihito Hasegawa

发明人： Hidekiyo Ozawa ,  Morihito Hasegawa

IPC分类号： G06F1/26

CPC分类号： H02M3/1588 ,  H02J7/0065 ,  H02J7/0068 ,  Y02B40/90 ,  Y02B70/1466 ,  Y10S323/906

摘要： The control circuit 30 of power supply unit and power supply unit 10 controlling output power with electric power supplied from the external power 15, comprise a monitoring portion 40 monitoring current I1 and voltage outputted from the external power supply 15 and output power of the external power supply 15 and a setting portion e1 which sets an upper limit value of current outputted from the external power supply 15 based on a monitoring result of the monitoring portion 40.

摘要翻译： 电源单元的控制电路30和从外部电源15供给的电力来控制输出功率的电源单元10包括监视电流I 1的监视部40和从外部电源15输出的电压和外部电力的输出功率 电源15和设定部e 1，其根据监视部40的监视结果设定从外部电源15输出的电流的上限值。

公开(公告)号：US20070090819A1

公开(公告)日：2007-04-26

申请号：US11342553

申请日：2006-01-31

申请人： Morihito Hasegawa ,  Hidekiyo Ozawa

发明人： Morihito Hasegawa ,  Hidekiyo Ozawa

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M2001/0022

摘要： A DC-DC converter applicable to a wide input voltage range. An error amplifier compares a divided voltage, which is generated by dividing output voltage with a plurality of resistors, and a reference voltage to generate an error signal. A voltage source generates an offset signal by offsetting the error signal. A PWM comparator compares the offset signal with a triangular wave signal to generate a drive signal for controlling activation and inactivation of a first output transistor and a second transistor at a duty corresponding to the comparison result. An offset controller determines the ratio between the output voltage and the input voltage and controls the offset voltage of the voltage source in accordance with the determination.

摘要翻译： 适用于宽输入电压范围的DC-DC转换器。 误差放大器比较通过将输出电压与多个电阻器分压而产生的分压和参考电压来产生误差信号。 电压源通过偏移误差信号产生偏移信号。 PWM比较器将偏移信号与三角波信号进行比较，以产生用于以对应于比较结果的占空比来控制第一输出晶体管和第二晶体管的激活和失活的驱动信号。 偏移控制器确定输出电压和输入电压之间的比率，并根据确定来控制电压源的偏移电压。

公开(公告)号：US07098639B2

公开(公告)日：2006-08-29

申请号：US10716401

申请日：2003-11-20

申请人： Masahiro Natsume ,  Kyuichi Takimoto ,  Hidekiyo Ozawa

发明人： Masahiro Natsume ,  Kyuichi Takimoto ,  Hidekiyo Ozawa

IPC分类号： G05F1/56

CPC分类号： H03K17/063 ,  H02M3/1588 ,  H03K17/6871 ,  H03K17/6872 ,  Y02B70/1466

摘要： A method for controlling a DC-DC converter that achieves high conversion efficiency without using a linear regulator circuit. The DC-DC converter includes a main switching transistor, a first capacitor, a second capacitor, and a diode that is series-connected to the first capacitor. The series-connected diode and the first capacitor are connected between the source and drain of the main switching transistor. The second capacitor is connected in parallel to the first capacitor or disconnected from the first capacitor in synchronism with activation and inactivation of the main switching transistor to generate gate voltage for driving the main switching transistor.

摘要翻译： 一种用于控制在不使用线性调节器电路的情况下实现高转换效率的DC-DC转换器的方法。 DC-DC转换器包括主开关晶体管，第一电容器，第二电容器和串联连接到第一电容器的二极管。 串联二极管和第一电容器连接在主开关晶体管的源极和漏极之间。 第二电容器与第一电容器并联连接或与主开关晶体管的激活和失活同步地与第一电容器断开以产生用于驱动主开关晶体管的栅极电压。