公开(公告)号：US09584019B2

公开(公告)日：2017-02-28

申请号：US14425517

申请日：2013-09-03

申请人： Yohichi Shiwaya

发明人： Yohichi Shiwaya

IPC分类号： G05F1/56 ,  H02M3/158 ,  H02M3/156 ,  H02M1/00

CPC分类号： H02M3/158 ,  H02M3/156 ,  H02M3/1588 ,  H02M2001/0009 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

摘要： A switching regulator including an output switch element; a rectification switch element; an oscillation circuit; an error amplifier circuit; a slope circuit; a first voltage comparison circuit; a second voltage comparison circuit; a one pulse generation circuit; a control circuit; and a backflow detection circuit, and a control method thereof suppress variations to be stabilized with respect to a target value of the load current for switching between a PWM control and a PFM control, and ensure the switching from the PFM control to the PWM control or from the PWM control to the PFM control even if various parameters including external elements such as chips, coils, and capacitors vary.

摘要翻译： 一种开关调节器，包括输出开关元件; 整流开关元件; 振荡电路; 误差放大器电路; 斜坡电路; 第一电压比较电路; 第二电压比较电路; 一脉冲发生电路; 一个控制电路; 逆流检测电路及其控制方法抑制PWM控制与PFM控制之间切换的负载电流的目标值的稳定化，并且确保从PFM控制切换到PWM控制， 即使包括诸如芯片，线圈和电容器等外部元件的各种参数变化，也可以从PWM控制到PFM控制。

公开(公告)号：US20090261753A1

公开(公告)日：2009-10-22

申请号：US12375949

申请日：2008-05-14

申请人： Toshiki Kishioka ,  Yohichi Shiwaya

发明人： Toshiki Kishioka ,  Yohichi Shiwaya

IPC分类号： H05B37/02

CPC分类号： H02M3/07

摘要： A load driving circuit is disclosed that allows a charge pump circuit to operate at an optimum step-up ratio without frequently changing the step-up ratio. The load driving circuit includes a step-up circuit; a current setting circuit that sets a value of an electric current to be supplied to a load; a constant current circuit generating a constant electric current having the set value; a determination circuit; and a control circuit. In response to a load current setting signal, the current setting circuit sets the electric current to be maximum, and decreases the electric current step by step down to a preset value. Each time the electric current is decreased by one step, the control circuit changes the step-up ratio according to the determination results of the determination circuit, until the constant current circuit supplies the set electric current.

摘要翻译： 公开了一种负载驱动电路，其允许电荷泵电路以最佳升压比运行而不频繁地改变升压比。 负载驱动电路包括升压电路; 电流设定电路，其设定要提供给负载的电流值; 产生具有设定值的恒定电流的恒流电路; 确定电路; 和控制电路。 响应于负载电流设定信号，电流设定电路将电流设定为最大值，并将电流逐步降低到预设值。 每当电流减少一步时，控制电路根据确定电路的确定结果改变升压比，直到恒流电路提供设定的电流。

公开(公告)号：US09812959B2

公开(公告)日：2017-11-07

申请号：US14463895

申请日：2014-08-20

申请人： Yohichi Shiwaya ,  Shinya Shimizu

发明人： Yohichi Shiwaya ,  Shinya Shimizu

IPC分类号： H02M3/158 ,  H02M1/00

CPC分类号： H02M3/158 ,  H02M3/1582 ,  H02M2001/0032 ,  H02M2001/0041 ,  Y02B70/16

摘要： A step up/down switching regulator converts an input voltage of an input terminal into a predetermined setting voltage in a step up/down manner and outputs the setting voltage as an output voltage from an output terminal. The step up/down switching regulator includes a bypass mode in which the input voltage is directly bypassed to the output terminal without performing a step up/down switching, and a step up/down switching mode in which the step up/down switching is performed. The step up/down switching regulator includes a step up/down output unit, a step up/down control unit, and a mode select terminal.

公开(公告)号：US08278991B2

公开(公告)日：2012-10-02

申请号：US12811924

申请日：2008-12-05

申请人： Yohichi Shiwaya

发明人： Yohichi Shiwaya

IPC分类号： G05F1/10 ,  G05F3/02

CPC分类号： H02M3/07 ,  H02M2001/0045

摘要： A power supply circuit includes a charge pump circuit configured to raise a voltage inputted from an input terminal and supply the raised voltage from an output terminal to a given load and a control circuit unit. The charge pump circuit includes a fly-back capacitor configured to store a charge of the voltage inputted from the input terminal and an output transistor connected between one terminal of the fly-back capacitor and the output terminal of the charge pump circuit. The control circuit unit receives a reference voltage and the voltage outputted from the charge pump circuit and is configured to generate a proportional voltage proportional to the voltage outputted from the charge pump circuit and output a voltage to control the output transistor depending on a difference between the proportional voltage and the reference voltage so that the proportional voltage has the same voltage level as the reference voltage.

摘要翻译： 电源电路包括电荷泵电路，其被配置为升高从输入端子输入的电压并将升高的电压从输出端子提供给给定负载和控制电路单元。 电荷泵电路包括：回扫电容器，被配置为存储从输入端子输入的电压的电荷以及连接在反光电容器的一个端子和电荷泵电路的输出端子之间的输出晶体管。 控制电路单元接收参考电压和从电荷泵电路输出的电压，并且被配置为产生与从电荷泵电路输出的电压成比例的比例电压，并输出电压以根据输入晶体管的差异来控制输出晶体管 比例电压和参考电压，使得比例电压具有与参考电压相同的电压电平。

公开(公告)号：US20150054479A1

公开(公告)日：2015-02-26

申请号：US14463895

申请日：2014-08-20

申请人： Yohichi Shiwaya ,  Shinya Shimizu

发明人： Yohichi Shiwaya ,  Shinya Shimizu

IPC分类号： H02M3/158

CPC分类号： H02M3/158 ,  H02M3/1582 ,  H02M2001/0032 ,  H02M2001/0041 ,  Y02B70/16

摘要： A step up/down switching regulator converts an input voltage of an input terminal into a predetermined setting voltage in a step up/down manner and outputs the setting voltage as an output voltage from an output terminal. The step up/down switching regulator includes a bypass mode in which the input voltage is directly bypassed to the output terminal without performing a step up/down switching, and a step up/down switching mode in which the step up/down switching is performed. The step up/down switching regulator includes a step up/down output unit, a step up/down control unit, and a mode select terminal.

摘要翻译： 升压/降压开关调节器以升/降方式将输入端子的输入电压转换成预定的设定电压，并从输出端子输出设定电压作为输出电压。 升压/降压开关调节器包括旁路模式，其中输入电压直接旁路到输出端子而不进行升压/降压切换，以及升压/降压切换模式，其中执行升压/降压切换 。 升压/降压开关调节器包括升压/降压输出单元，升压/降压控制单元和模式选择端子。

公开(公告)号：US20100277227A1

公开(公告)日：2010-11-04

申请号：US12811924

申请日：2008-12-05

申请人： Yohichi Shiwaya

发明人： Yohichi Shiwaya

IPC分类号： G05F1/10

CPC分类号： H02M3/07 ,  H02M2001/0045

摘要： A power supply circuit includes a charge pump circuit configured to raise a voltage inputted from an input terminal and supply the raised voltage from an output terminal to a given load and a control circuit unit. The charge pump circuit includes a fly-back capacitor configured to store a charge of the voltage inputted from the input terminal and an output transistor connected between one terminal of the fly-back capacitor and the output terminal of the charge pump circuit. The control circuit unit receives a reference voltage and the voltage outputted from the charge pump circuit and is configured to generate a proportional voltage proportional to the voltage outputted from the charge pump circuit and output a voltage to control the output transistor depending on a difference between the proportional voltage and the reference voltage so that the proportional voltage has the same voltage level as the reference voltage.

摘要翻译： 电源电路包括电荷泵电路，其被配置为升高从输入端子输入的电压并将升高的电压从输出端子提供给给定负载和控制电路单元。 电荷泵电路包括：回扫电容器，被配置为存储从输入端子输入的电压的电荷以及连接在反光电容器的一个端子和电荷泵电路的输出端子之间的输出晶体管。 控制电路单元接收参考电压和从电荷泵电路输出的电压，并且被配置为产生与从电荷泵电路输出的电压成比例的比例电压，并输出电压以根据输入晶体管的差异来控制输出晶体管 比例电压和参考电压，使得比例电压具有与参考电压相同的电压电平。

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：US08669749B2

公开(公告)日：2014-03-11

申请号：US12961907

申请日：2010-12-07

申请人： Yohichi Shiwaya

发明人： Yohichi Shiwaya

IPC分类号： G05F1/00

CPC分类号： H02M3/1584

摘要： A switching power supply unit of a non-insulated, synchronous rectification type converts a voltage input to an input terminal into a predetermined voltage and outputs the voltage. The unit includes an inductor, a plurality of output switching elements, a plurality of rectifying switching elements, a switching element control circuit, a switching regulator integrated circuit, and a plurality of buffer circuits. The output switching elements, the rectifying switching elements, the switching element control circuit and the buffer circuits are integrated on the switching regulator integrated circuit.

摘要翻译： 非绝缘同步整流型开关电源单元将输入到输入端子的电压转换为预定电压并输出该电压。 该单元包括电感器，多个输出开关元件，多个整流开关元件，开关元件控制电路，开关调节器集成电路和多个缓冲电路。 输出开关元件，整流开关元件，开关元件控制电路和缓冲电路集成在开关稳压器集成电路上。

公开(公告)号：US08295064B2

公开(公告)日：2012-10-23

申请号：US12665583

申请日：2008-10-08

申请人： Yohichi Shiwaya

发明人： Yohichi Shiwaya

IPC分类号： H02M3/18

CPC分类号： H02M3/07

摘要： A disclosed operation control method of a charge pump circuit for boosting an input voltage to a desired magnitude in the range between the input voltage and twice the input voltage and outputting the boosted voltage. The method includes the steps of (a) during a charging period, charging, with the input voltage, one or more of the capacitors connected in series by selectively turning on one or more of the first switches in accordance with the desired voltage magnitude, turning on the third switch, and selectively turning on the second switch or one of the fourth switches; and (b) during a discharging period, turning off the third switch and the second switch or the fourth switch having been turned on; selectively turning on one or more of the first switches; and turning on one or more fourth and the fifth switches.

摘要翻译： 一种电荷泵电路的公开的操作控制方法，用于在输入电压和两倍于输入电压之间的范围内将输入电压升压到期望的幅度，并输出升压电压。 该方法包括以下步骤：（a）在充电期间，通过根据期望的电压大小选择性地接通一个或多个第一开关，使输入电压中的一个或多个电容器串联连接， 在第三开关上，并选择性地接通第二开关或第四开关中的一个; 和（b）在放电期间，关闭第三开关和第二开关或第四开关已经接通; 选择性地接通一个或多个第一开关; 并打开一个或多个第四和第五开关。

公开(公告)号：US20100188065A1

公开(公告)日：2010-07-29

申请号：US12665583

申请日：2008-10-08

申请人： Yohichi Shiwaya

发明人： Yohichi Shiwaya

IPC分类号： G05F5/00

CPC分类号： H02M3/07

摘要： A disclosed operation control method of a charge pump circuit for boosting an input voltage to a desired magnitude in the range between the input voltage and twice the input voltage and outputting the boosted voltage. The method includes the steps of (a) during a charging period, charging, with the input voltage, one or more of the capacitors connected in series by selectively turning on one or more of the first switches in accordance with the desired voltage magnitude, turning on the third switch, and selectively turning on the second switch or one of the fourth switches; and (b) during a discharging period, turning off the third switch and the second switch or the fourth switch having been turned on; selectively turning on one or more of the first switches; and turning on one or more fourth and the fifth switches.

摘要翻译： 一种电荷泵电路的公开的操作控制方法，用于在输入电压和两倍于输入电压之间的范围内将输入电压升压到期望的幅度，并输出升压电压。 该方法包括以下步骤：（a）在充电期间，通过根据期望的电压大小选择性地接通一个或多个第一开关，使输入电压中的一个或多个电容串联连接， 在第三开关上，并选择性地接通第二开关或第四开关中的一个; 和（b）在放电期间，关闭第三开关和第二开关或第四开关已经接通; 选择性地接通一个或多个第一开关; 并打开一个或多个第四和第五开关。