公开(公告)号：US20080079409A1

公开(公告)日：2008-04-03

申请号：US11902829

申请日：2007-09-26

申请人： Mikio Motomori ,  Takuya Ishii

发明人： Mikio Motomori ,  Takuya Ishii

IPC分类号： G05F1/44 ,  G05F1/00

CPC分类号： H02M3/156 ,  H02M1/32

摘要： To securely detect the short-circuited state of a rectifier without detecting current and to protect a switching device in a DC-DC converter, in a state in which the potential at the connection point of the rectifier and the switching device is detected and a drive signal turns ON the switching device, the protection circuit of the DC-DC converter is configured to securely turn OFF the switching device when the potential at the connection point is a predetermined potential or more.

摘要翻译： 为了在不检测电流的情况下安全地检测整流器的短路状态并保护DC-D​​C转换器中的开关装置，在检测到整流器和开关装置的连接点处的电位和驱动 信号导通开关装置，DC-DC转换器的保护电路被配置为当连接点处的电位为预定电位或更大时可靠地关闭开关装置。

公开(公告)号：US20070075687A1

公开(公告)日：2007-04-05

申请号：US11527441

申请日：2006-09-27

申请人： Takuya Ishii ,  Masato Yoshida ,  Mikio Motomori ,  Jun-ichiro Hara

发明人： Takuya Ishii ,  Masato Yoshida ,  Mikio Motomori ,  Jun-ichiro Hara

IPC分类号： G05F1/613

CPC分类号： H02M3/1582

摘要： A buck-boost converter includes: a buck converter section including a first switch, a first rectifier, and an inductor; a boost converter section sharing the inductor and including a second switch, a second rectifier, and a smoothing circuit; and a control circuit for generating and outputting a first driving signal for opening and closing the first switch and a second driving signal for opening and closing the second switch. The control circuit includes:an error amplifier circuit for amplifying an error between an output value from the smoothing circuit and a predetermined voltage value to thereby generate and output an error signal; an oscillator circuit for generating and outputting a triangular wave signal having a predetermined cycle; a compensatory signal generation circuit for generating and outputting a compensatory signal, which oscillates in a cycle that is at least twice the cycle of the triangular wave signal; a control signal generation circuit for adding together the error signal and the compensatory signal to thereby generate and output a control signal; and a comparator circuit for comparing the triangular wave signal with the control signal to generate and output the first or second driving signal.

摘要翻译： 降压 - 升压转换器包括：降压转换器部分，包括第一开关，第一整流器和电感器; 共享电感器并包括第二开关，第二整流器和平滑电路的升压转换器部分; 以及用于产生和输出用于打开和关闭第一开关的第一驱动信号的控制电路和用于打开和关闭第二开关的第二驱动信号。 控制电路包括：误差放大器电路，用于放大来自平滑电路的输出值与预定电压值之间的误差，从而产生并输出误差信号; 用于产生并输出具有预定周期的三角波信号的振荡器电路; 补偿信号生成电路，用于产生和输出补偿信号，该补偿信号以至少是三角波信号周期的两倍的周期振荡; 控制信号生成电路，用于将误差信号和补偿信号相加，从而生成并输出控制信号; 以及用于将三角波信号与控制信号进行比较以产生并输出第一或第二驱动信号的比较器电路。

公开(公告)号：US20060214647A1

公开(公告)日：2006-09-28

申请号：US11384247

申请日：2006-03-21

申请人： Makoto Ishimaru ,  Takuya Ishii ,  Mikio Motomori ,  Takashi Ryu ,  Hirohisa Tanabe ,  Hiroki Akashi ,  Tomoya Shigemi

发明人： Makoto Ishimaru ,  Takuya Ishii ,  Mikio Motomori ,  Takashi Ryu ,  Hirohisa Tanabe ,  Hiroki Akashi ,  Tomoya Shigemi

IPC分类号： G05F1/00

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

摘要： A current detector detects a current flowing through a high-side switch to output a current detection signal. When the current detection signal is lower than an error signal which is generated based on the difference between an output voltage and a reference voltage, a comparator outputs a signal. A timer outputs a signal a predetermined time after the high-side switch is turned ON. When the timer outputs the signal and the comparator outputs the signal, the high-side switch is turned OFF.

摘要翻译： 电流检测器检测流过高侧开关的电流以输出电流检测信号。 当电流检测信号低于基于输出电压和参考电压之差产生的误差信号时，比较器输出信号。 定时器在高侧开关接通之后的预定时间输出信号。 当定时器输出信号并且比较器输出信号时，高侧开关被关闭。

公开(公告)号：US20060044853A1

公开(公告)日：2006-03-02

申请号：US11206977

申请日：2005-08-19

申请人： Richard Oswald ,  Tamotsu Yamamoto ,  Takashi Ryu ,  Mikio Motomori ,  Takuya Ishii

发明人： Richard Oswald ,  Tamotsu Yamamoto ,  Takashi Ryu ,  Mikio Motomori ,  Takuya Ishii

IPC分类号： H02J1/10

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A method of regulating an output voltage by utilizing a switching regulator, where the switching regulator includes a high side switch, a low side switch having an active diode, a controller coupled to the high side switch and the low side switch, and a current measuring circuit coupled to the high side switch. The method includes the steps of: measuring the output voltage and if the output voltage is below a desired level, activating the high side switch so as to provide current to a load capacitor via a load inductor, if the voltage is above the desired level, activating the low side switch so as to sink current from the load capacitor via the load inductor; and utilizing the current measuring circuit to measure the current flowing through the high side switch in either a positive direction or a negative direction, where the controller is operable for controlling the current measuring circuit and disabling active components contained in the current measuring circuit and the active diode when the active components are not utilized during operation of the switching regulator so as to reduce operational power requirements of the switching regulator.

摘要翻译： 一种通过利用开关调节器来调节输出电压的方法，其中开关调节器包括高侧开关，具有有源二极管的低侧开关，耦合到高侧开关和低侧开关的控制器以及电流测量 电路耦合到高侧开关。 该方法包括以下步骤：测量输出电压，如果输出电压低于期望电平，则激活高侧开关，以便如果电压高于所需电平，则通过负载电感器向负载电容器提供电流， 激活低侧开关，以便经由负载电感器从负载电容器吸收电流; 并利用电流测量电路来测量在正方向或负方向上流过高侧开关的电流，其中控制器可操作用于控制电流测量电路并禁用包含在电流测量电路中的有源元件和有源 当在开关调节器的操作期间不使用有源组件以减少开关调节器的操作功率需求时，二极管。

公开(公告)号：US07538531B2

公开(公告)日：2009-05-26

申请号：US11529271

申请日：2006-09-29

申请人： Takuya Ishii ,  Mikio Motomori

发明人： Takuya Ishii ,  Mikio Motomori

IPC分类号： G05F1/40

CPC分类号： H03K19/018507 ,  H02M3/1588 ,  H03K17/163 ,  H03K17/165 ,  H03K17/6871 ,  Y02B70/1466

摘要： A drive circuit drives a switch element having a first terminal, a second terminal, and a control terminal. A direct-current voltage is applied to the first terminal. The drive circuit includes a capacitor which is charged when the switch element is in the OFF state, and applies a charged voltage between the control terminal and the first terminal of the switch element or between the control terminal and the second terminal of the switch element when the switch element is in the ON state.

摘要翻译： 驱动电路驱动具有第一端子，第二端子和控制端子的开关元件。 向第一端子施加直流电压。 驱动电路包括电容器，当开关元件处于断开状态时，该电容器被充电，并且在控制端子与开关元件的第一端子之间或控制端子与开关元件的第二端子之间施加充电电压，当 开关元件处于ON状态。

公开(公告)号：US07482789B2

公开(公告)日：2009-01-27

申请号：US11414373

申请日：2006-05-01

申请人： Mikio Motomori ,  Takuya Ishii ,  Takashi Ryu ,  Hiroki Akashi ,  Hirohisa Tanabe ,  Makoto Ishimaru ,  Tomoya Shigemi

发明人： Mikio Motomori ,  Takuya Ishii ,  Takashi Ryu ,  Hiroki Akashi ,  Hirohisa Tanabe ,  Makoto Ishimaru ,  Tomoya Shigemi

IPC分类号： G05F1/62

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A step-up converter includes an inductor which receives input voltage Vi at one end, a first FET of the first conduction type which functions as a switch for determining whether or not energy is accumulated in the inductor, a second FET of the second conduction type which rectifies a current output from the other end of the inductor, an output capacitor having an end connected to the source of the second FET, a current detection circuit, and a feedback control circuit. The current detection circuit detects a current flowing through the first N-channel FET to output current detection signal Vc. The feedback control circuit controls the operations of the first N-channel FET and a P-channel FET based on current detection signal Vc.

摘要翻译： 升压转换器包括在一端接收输入电压Vi的电感器，第一导电类型的第一FET，其用作用于确定能量是否积聚在电感器中的开关，第二导电类型的第二FET 其对来自电感器另一端的电流输出进行整流;输出电容器，其端部连接到第二FET的源极，电流检测电路和反馈控制电路。 电流检测电路检测流过第一N沟道FET的电流以输出电流检测信号Vc。 反馈控制电路基于电流检测信号Vc来控制第一N沟道FET和P沟道FET的操作。

公开(公告)号：US20080179950A1

公开(公告)日：2008-07-31

申请号：US11902880

申请日：2007-09-26

申请人： Junichi Morita ,  Takuya Ishii ,  Mikio Motomori

发明人： Junichi Morita ,  Takuya Ishii ,  Mikio Motomori

IPC分类号： H02J1/10 ,  H02J1/00

CPC分类号： H02J1/08 ,  H02J1/108 ,  H02J2001/008 ,  Y10T307/352 ,  Y10T307/707

摘要： The present invention provides an efficient multi-output power supply apparatus that enables a reduction in the on voltage of a main switch in a step-down power supply circuit or the like over a wide input range from a low input to a high input. The power supply apparatus includes a first power supply circuit that increases an input voltage from an input power source to output a first output voltage Vo1, and a second power supply circuit that outputs a second output voltage Vo2 obtained from the input voltage via a main switch circuit connected to the input power source. The main switch circuit having a first switch element that is a PMOS transistor and a second switch element that is an NMOS transistor connected to each other in parallel. The first output voltage Vo1 is applied to a gate of the second switch element.

摘要翻译： 本发明提供了一种有效的多输出电源装置，其能够在从低输入到高输入的宽输入范围内降低降压电源电路等中的主开关的导通电压。 电源装置包括：第一电源电路，其从输入电源增加输入电压以输出第一输出电压Vo1;以及第二电源电路，其输出从输入电压获得的第二输出电压Vo 2，经由 主开关电路连接到输入电源。 主开关电路具有作为PMOS晶体管的第一开关元件和作为彼此并联连接的NMOS晶体管的第二开关元件。 第一输出电压Vo 1被施加到第二开关元件的栅极。

公开(公告)号：US07391199B2

公开(公告)日：2008-06-24

申请号：US11489184

申请日：2006-07-19

申请人： Hiroki Akashi ,  Takashi Ryu ,  Takuya Ishii ,  Mikio Motomori ,  Hirohisa Tanabe ,  Makoto Ishimaru ,  Tomoya Shigemi

发明人： Hiroki Akashi ,  Takashi Ryu ,  Takuya Ishii ,  Mikio Motomori ,  Hirohisa Tanabe ,  Makoto Ishimaru ,  Tomoya Shigemi

IPC分类号： G05F1/575 ,  G05F1/618

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

摘要： In a DC-DC converter conforming to the current mode control system, in which the valley value of an inductor current is controlled for output control, a current detection circuit 6 is configured to detect the current flowing from a low-side FET 2 to an inductor 3 using an FET 60, an NPN transistor 61, an NPN transistor 62, a PNP transistor 64, a PNP transistor 65 and a resistor 66, to detect the current flowing from the inductor 3 to the low-side FET 2 using an FET 67, a differential amplifier 68, an FET 69 and the resistor 66, and to output a current detection signal Vc.

摘要翻译： 在符合电流模式控制系统的DC-DC转换器中，其中电感电流的谷值被控制用于输出控制，电流检测电路6被配置为检测从低侧FET 2流向 使用FET60，NPN晶体管61，NPN晶体管62，PNP晶体管64，PNP晶体管65和电阻器66的电感器3，以使用FET检测从电感器3流向低侧FET2的电流 67，差分放大器68，FET69和电阻66，并输出电流检测信号Vc。

公开(公告)号：US07323850B2

公开(公告)日：2008-01-29

申请号：US11195835

申请日：2005-08-02

申请人： Takashi Ryu ,  Takuya Ishii ,  Mikio Motomori ,  Hirohisa Tanabe ,  Tomoya Shigemi

发明人： Takashi Ryu ,  Takuya Ishii ,  Mikio Motomori ,  Hirohisa Tanabe ,  Tomoya Shigemi

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M2001/0009

摘要： A current detection circuit of the present invention has a switching device 1; an auxiliary switching device 2; an offset voltage source comprising an offset resistor device 7 and a current source circuit 8; a compensation circuit, comprising a differential amplifier 4 and a compensation transistor 5, for adjusting the output current of the auxiliary switching device 2 so that the potential obtained by subtracting the voltage drop across the offset resistor device 7 from the output potential of the switching device 1 is equal to the output potential of the auxiliary switching device 2, being configured that the detection level of the current flowing in the switching device 1 is shifted by an offset amount.

摘要翻译： 本发明的电流检测电路具有开关元件1， 辅助切换装置2; 偏移电压源，包括偏移电阻器件7和电流源电路8; 补偿电路，包括差分放大器4和补偿晶体管5，用于调整辅助开关器件2的输出电流，使得通过从开关器件的输出电位减去偏移电阻器件7上的电压降而获得的电位 1等于辅助开关装置2的输出电位，被配置为使在开关装置1中流动的电流的检测电平偏移了偏移量。

公开(公告)号：US07268525B2

公开(公告)日：2007-09-11

申请号：US11527441

申请日：2006-09-27

申请人： Takuya Ishii ,  Masato Yoshida ,  Mikio Motomori ,  Jun-ichiro Hara

发明人： Takuya Ishii ,  Masato Yoshida ,  Mikio Motomori ,  Jun-ichiro Hara

IPC分类号： G05F1/575

CPC分类号： H02M3/1582

摘要： A buck-boost converter includes: a buck converter section including a first switch, a first rectifier, and an inductor; a boost converter section sharing the inductor and including a second switch, a second rectifier, and a smoothing circuit; and a control circuit for generating and outputting a first driving signal for opening and closing the first switch and a second driving signal for opening and closing the second switch. The control circuit includes: an error amplifier circuit for amplifying an error between an output value from the smoothing circuit and a predetermined voltage value to thereby generate and output an error signal; an oscillator circuit for generating and outputting a triangular wave signal having a predetermined cycle; a compensatory signal generation circuit for generating and outputting a compensatory signal, which oscillates in a cycle that is at least twice the cycle of the triangular wave signal; a control signal generation circuit for adding together the error signal and the compensatory signal to thereby generate and output a control signal; and a comparator circuit for comparing the triangular wave signal with the control signal to generate and output the first or second driving signal.

摘要翻译： 降压 - 升压转换器包括：降压转换器部分，包括第一开关，第一整流器和电感器; 共享电感器并包括第二开关，第二整流器和平滑电路的升压转换器部分; 以及用于产生和输出用于打开和关闭第一开关的第一驱动信号的控制电路和用于打开和关闭第二开关的第二驱动信号。 控制电路包括：误差放大器电路，用于放大来自平滑电路的输出值与预定电压值之间的误差，从而产生并输出误差信号; 用于产生并输出具有预定周期的三角波信号的振荡器电路; 补偿信号生成电路，用于产生和输出补偿信号，该补偿信号以至少是三角波信号周期的两倍的周期振荡; 控制信号生成电路，用于将误差信号和补偿信号相加，从而生成并输出控制信号; 以及用于将三角波信号与控制信号进行比较以产生并输出第一或第二驱动信号的比较器电路。