公开(公告)号：US07646179B2

公开(公告)日：2010-01-12

申请号：US11723515

申请日：2007-03-20

申请人： Koichi Hagino

发明人： Koichi Hagino

IPC分类号： G05F1/00

CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

摘要： An electric power supply circuit includes a first switching element that turns on or off according to an external signal; an inductor capacitor circuit provided between the power supply and the load that charges or discharges electric power provided by the power supply according to the on or off state of the first switching element; a rectifier diode provided between the first switching element and the ground; a second switching element provided in parallel with the rectifier diode that turns on or off synchronously with the first switching element; and a depletion transistor that detects a direction of a current flowing through the inductor capacitor circuit based on a voltage detected across the second switching element to generate a detection result, and causes the second switching element to turn on or off according to the detection result.

摘要翻译： 电源电路包括根据外部信号接通或断开的第一开关元件; 电源电容器电路，设置在所述电源和所述负载之间，根据所述第一开关元件的接通或断开状态对由所述电源提供的电力进行充电或放电; 设置在第一开关元件和地之间的整流二极管; 与整流二极管并联设置的与第一开关元件同步地导通或截止的第二开关元件; 以及耗尽型晶体管，其基于在所述第二开关元件上检测到的电压来检测流过所述电感器电容器电路的电流的方向，以产生检测结果，并且根据所述检测结果使所述第二开关元件导通或截止。

公开(公告)号：US07663406B2

公开(公告)日：2010-02-16

申请号：US12202780

申请日：2008-09-02

申请人： Koichi Hagino

发明人： Koichi Hagino

IPC分类号： H03K19/0948 ,  H03K19/017

CPC分类号： H03K5/1515 ,  H02M1/08 ,  H02M1/38 ,  H03K5/084 ,  H03K7/08

摘要： An output circuit including an input terminal; an output terminal; a PMOS transistor connected with a positive side of a power voltage and the output terminal; a NMOS transistor connected with a negative side of the power supply voltage and the output terminal; a first inverter, to which a gate voltage of the PMOS transistor is input and which exhibits hysteresis in threshold voltage; and a second inverter, to which a gate voltage of the NMOS transistor is input and which exhibits hysteresis in threshold voltage, wherein an OR logic signal of the input signal and a signal obtained by inverting an output signal from the second inverter is input to a gate of the PMOS transistor, and an AND logic signal of the input signal and a signal obtained by inverting an output signal from the first inverter is input to a gate of the NMOS transistor.

摘要翻译： 一种包括输入端的输出电路; 输出端子; 与电源电压的正侧连接的PMOS晶体管和输出端子; 与所述电源电压的负侧连接的NMOS晶体管和所述输出端子; 第一反相器，其中输入PMOS晶体管的栅极电压并且在阈值电压中表现出滞后; 以及第二反相器，输入NMOS晶体管的栅极电压并且在阈值电压中表现出滞后，其中输入信号的OR逻辑信号和通过将来自第二反相器的输出信号反相而获得的信号被输入到 PMOS晶体管的栅极和输入信号的AND逻辑信号以及通过使来自第一反相器的输出信号反相而获得的信号被输入到NMOS晶体管的栅极。

公开(公告)号：US07619400B2

公开(公告)日：2009-11-17

申请号：US11605007

申请日：2006-11-28

申请人： Koichi Hagino

发明人： Koichi Hagino

IPC分类号： G05F1/618

CPC分类号： H02M3/1582

摘要： This patent specification describes a switching regulator which includes a step-up/step-down unit configured to generate an output voltage by stepping up or down an input voltage in accordance with a control signal, and a control unit configured to cause the step-up/step-down unit to perform the step-up or step-down operation.

摘要翻译： 该专利说明书描述了一种开关调节器，其包括升压/降压单元，其被配置为通过根据控制信号升压或降低输入电压来产生输出电压，以及控制单元，其被配置为使升压 /降压单元执行升压或降压操作。

公开(公告)号：US07884584B2

公开(公告)日：2011-02-08

申请号：US12487073

申请日：2009-06-18

申请人： Katsuhisa Furuse ,  Yasuhiro Ishizaka ,  Shohtaroh Sohma ,  Koichi Hagino ,  Shinichiro Yamada ,  Toshiya Murota ,  Masanobu Fukushima

发明人： Katsuhisa Furuse ,  Yasuhiro Ishizaka ,  Shohtaroh Sohma ,  Koichi Hagino ,  Shinichiro Yamada ,  Toshiya Murota ,  Masanobu Fukushima

IPC分类号： G05F1/00

CPC分类号： H02M3/157 ,  H02M2001/0025 ,  Y10S323/901

摘要： A switching power supply circuit for generating an output voltage at an output node based on an input voltage at an input node includes a reference voltage generating circuit configured to generate a reference voltage such that during an initial start-up period of the reference voltage a voltage rise rate of the reference voltage within a first predetermined period from a start point of the initial start-up period and a voltage rise rate thereof within a second predetermined period immediately preceding an end point of the initial start-up period are smaller than a voltage rise rate thereof in a period between the first predetermined period and the second predetermined period, a coil disposed between the input output nodes, and a switch circuit configured to switch on and off to control current through the coil in response to comparison between the reference voltage and a voltage proportional to the output voltage.

摘要翻译： 用于基于输入节点处的输入电压在输出节点处产生输出电压的开关电源电路包括：参考电压产生电路，被配置为产生参考电压，使得在参考电压的初始启动周期期间，电压 在初始启动周期的起始点之前的第一预定时间段内的参考电压的上升速率和在初始启动周期的结束点之前的第二预定时段内的电压上升速率小于电压 在第一预定周期和第二预定周期之间的周期内的上升速率，布置在输入输出节点之间的线圈和被配置为接通和关断的开关电路，以响应于参考电压 和与输出电压成比例的电压。

公开(公告)号：US20080231209A1

公开(公告)日：2008-09-25

申请号：US12048968

申请日：2008-03-14

申请人： Yohichi Shiwaya ,  Toshiki Kishioka ,  Koichi Hagino

发明人： Yohichi Shiwaya ,  Toshiki Kishioka ,  Koichi Hagino

IPC分类号： H05B41/36 ,  G05F1/10 ,  G05F1/44

CPC分类号： H05B33/0851 ,  H05B33/0827

摘要： A power supply device includes a step-up circuit configured to supply a driving voltage to a load, a comparison circuit configured to compare an output voltage from the load with a reference voltage, and a control circuit configured to control the step-up circuit based on a comparison result generated by the comparison circuit. The step-up circuit includes multiple operation modes each outputting a given voltage not lower than a power source voltage. The control circuit controls the step-up circuit to operate in one of the multiple operation modes. The control circuit maintains a current operation mode of the step-up circuit until the output voltage from the load decrease to below the reference voltage and, when the output voltage from the load is less than the reference voltage, switches the operation mode to another operation mode to output a voltage higher than a voltage output in the current operation mode.

摘要翻译： 电源装置包括：升压电路，其被配置为向负载提供驱动电压;比较电路，被配置为将来自所述负载的输出电压与参考电压进行比较;以及控制电路，被配置为基于所述控制电路来控制所述升压电路 比较电路产生的比较结果。 升压电路包括多个操作模式，每个操作模式输出不低于电源电压的给定电压。 控制电路控制升压电路以多种操作模式之一工作。 控制电路保持升压电路的电流运行模式，直到负载的输出电压降低到参考电压以下，当负载的输出电压小于参考电压时，将运行模式切换到另一个运行 模式以输出高于当前操作模式中的电压输出的电压。

公开(公告)号：US20070120546A1

公开(公告)日：2007-05-31

申请号：US11605007

申请日：2006-11-28

申请人： Koichi Hagino

发明人： Koichi Hagino

IPC分类号： G05F1/00

CPC分类号： H02M3/1582

摘要： This patent specification describes a switching regulator which includes a step-up/step-down unit configured to generate an output voltage by stepping up or down an input voltage in accordance with a control signal, and a control unit configured to cause the step-up/step-down unit to perform the step-up or step-down operation.

摘要翻译： 该专利说明书描述了一种开关调节器，其包括升压/降压单元，其被配置为通过根据控制信号升压或降低输入电压来产生输出电压，以及控制单元，其被配置为使升压 /降压单元执行升压或降压操作。

公开(公告)号：US20110187452A1

公开(公告)日：2011-08-04

申请号：US13014138

申请日：2011-01-26

申请人： Yukihiro Imai ,  Yukio Kadowaki ,  Koichi Hagino ,  Shunsei Tanaka

发明人： Yukihiro Imai ,  Yukio Kadowaki ,  Koichi Hagino ,  Shunsei Tanaka

IPC分类号： H03G3/20

CPC分类号： H03G3/20

摘要： A sound and music playback device includes: an output amplifier; a power supply circuit that supplies electric power to the output amplifier; and an output signal level judging circuit; wherein an output voltage value of the power supply circuit is changed based on a level of a sound and music signal to be outputted.

摘要翻译： 声音和音乐播放装置包括：输出放大器; 向输出放大器供给电力的电源电路; 和输出信号电平判断电路; 其中电源电路的输出电压值根据要输出的声音和音乐信号的电平而改变。

公开(公告)号：US20100013447A1

公开(公告)日：2010-01-21

申请号：US12487073

申请日：2009-06-18

申请人： Katsuhisa FURUSE ,  Yasuhiro Ishizaka ,  Shohtaroh Sohma ,  Koichi Hagino ,  Shinichiro Yamada ,  Toshiya Murota ,  Masanobu Fukushima

发明人： Katsuhisa FURUSE ,  Yasuhiro Ishizaka ,  Shohtaroh Sohma ,  Koichi Hagino ,  Shinichiro Yamada ,  Toshiya Murota ,  Masanobu Fukushima

IPC分类号： G05F1/10

CPC分类号： H02M3/157 ,  H02M2001/0025 ,  Y10S323/901

摘要： A switching power supply circuit for generating an output voltage at an output node based on an input voltage at an input node includes a reference voltage generating circuit configured to generate a reference voltage such that during an initial start-up period of the reference voltage a voltage rise rate of the reference voltage within a first predetermined period from a start point of the initial start-up period and a voltage rise rate thereof within a second predetermined period immediately preceding an end point of the initial start-up period are smaller than a voltage rise rate thereof in a period between the first predetermined period and the second predetermined period, a coil disposed between the input output nodes, and a switch circuit configured to switch on and off to control current through the coil in response to comparison between the reference voltage and a voltage proportional to the output voltage.

摘要翻译： 用于基于输入节点处的输入电压在输出节点处产生输出电压的开关电源电路包括：参考电压产生电路，被配置为产生参考电压，使得在参考电压的初始启动周期期间，电压 在初始启动周期的起始点之前的第一预定时间段内的参考电压的上升速率和在初始启动周期的结束点之前的第二预定时段内的电压上升速率小于电压 在第一预定周期和第二预定周期之间的周期内的上升速率，布置在输入输出节点之间的线圈和被配置为接通和关断的开关电路，以响应于参考电压 和与输出电压成比例的电压。

公开(公告)号：US07564196B2

公开(公告)日：2009-07-21

申请号：US12048968

申请日：2008-03-14

申请人： Yohichi Shiwaya ,  Toshiki Kishioka ,  Koichi Hagino

发明人： Yohichi Shiwaya ,  Toshiki Kishioka ,  Koichi Hagino

IPC分类号： H05B37/02

CPC分类号： H05B33/0851 ,  H05B33/0827

摘要： A power supply device includes a step-up circuit configured to supply a driving voltage to a load, a comparison circuit configured to compare an output voltage from the load with a reference voltage, and a control circuit configured to control the step-up circuit based on a comparison result generated by the comparison circuit. The step-up circuit includes multiple operation modes each outputting a given voltage not lower than a power source voltage. The control circuit controls the step-up circuit to operate in one of the multiple operation modes. The control circuit maintains a current operation mode of the step-up circuit until the output voltage from the load decrease to below the reference voltage and, when the output voltage from the load is less than the reference voltage, switches the operation mode to another operation mode to output a voltage higher than a voltage output in the current operation mode.

摘要翻译： 电源装置包括：升压电路，其被配置为向负载提供驱动电压;比较电路，被配置为将来自所述负载的输出电压与参考电压进行比较;以及控制电路，被配置为基于所述控制电路来控制所述升压电路 比较电路产生的比较结果。 升压电路包括多个操作模式，每个操作模式输出不低于电源电压的给定电压。 控制电路控制升压电路以多种操作模式之一工作。 控制电路保持升压电路的电流运行模式，直到负载的输出电压降低到参考电压以下，当负载的输出电压小于参考电压时，将运行模式切换到另一个运行 模式以输出高于当前操作模式中的电压输出的电压。

公开(公告)号：US20070216386A1

公开(公告)日：2007-09-20

申请号：US11723515

申请日：2007-03-20

申请人： Koichi Hagino

发明人： Koichi Hagino

IPC分类号： G05F1/00

CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

摘要： An electric power supply circuit includes a first switching element that turns on or off according to an external signal; an inductor capacitor circuit provided between the power supply and the load that charges or discharges electric power provided by the power supply according to the on or off state of the first switching element; a rectifier diode provided between the first switching element and the ground; a second switching element provided in parallel with the rectifier diode that turns on or off synchronously with the first switching element; and a depression transistor that detects a direction of a current flowing through the inductor capacitor circuit based on a voltage detected across the second switching element to generate a detection result, and causes the second switching element to turn on or off according to the detection result.

摘要翻译： 电源电路包括根据外部信号接通或断开的第一开关元件; 电源电容器电路，设置在所述电源和所述负载之间，根据所述第一开关元件的接通或断开状态对由所述电源提供的电力进行充电或放电; 设置在第一开关元件和地之间的整流二极管; 与整流二极管并联设置的与第一开关元件同步地导通或截止的第二开关元件; 以及抑制晶体管，其基于在所述第二开关元件上检测到的电压来检测流过所述电感器电容器电路的电流的方向，以产生检测结果，并且根据所述检测结果使所述第二开关元件导通或截止。