公开(公告)号：US07355830B2

公开(公告)日：2008-04-08

申请号：US10992104

申请日：2004-11-19

申请人： Mikio Motomori

发明人： Mikio Motomori

IPC分类号： H02H3/00

CPC分类号： H02H7/1213 ,  H02M1/32 ,  H02M3/158 ,  H02M2001/0009

摘要： The switching regulator comprises a main switch, a rectifier switch, an RS-flipflop, a judging unit, an edge pulse generator, a second prohibiting unit, and a reference voltage source. When a voltage drop caused due to an on-resistance of the main switch exceeds a predetermined value, the judging unit sets a set signal of the RS-flipflop at a high level, and thereby an overcurrent is cut off. The edge pulse generator monitors a gate voltage of the rectifier switch, and sets a prohibition signal at a high level for a predetermined time period from the trailing edge. Then, the second prohibiting unit sets the set signal at a low level, and prohibits cutting the overcurrent off. Herewith, the likelihood that the main switch will be destroyed by the overcurrent can be reduced.

摘要翻译： 开关调节器包括主开关，整流开关，RS触发器，判断单元，边沿脉冲发生器，第二禁止单元和参考电压源。 当由于主开关的导通电阻引起的电压降超过预定值时，判断单元将RS触发器的设定信号设定在高电平，从而切断过电流。 边沿脉冲发生器监视整流器开关的栅极电压，并且在从后沿开始的预定时间段内将禁止信号设置在高电平。 然后，第二禁止单元将设定信号设定在低电平，并且禁止切断过电流。 因此，可以减少主开关被过电流破坏的可能性。

公开(公告)号：US20080079410A1

公开(公告)日：2008-04-03

申请号：US11902089

申请日：2007-09-19

申请人： Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Yoichi Deguchi ,  Satoshi Wada ,  Yoshihisa Minami

发明人： Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Yoichi Deguchi ,  Satoshi Wada ,  Yoshihisa Minami

IPC分类号： G05F1/575 ,  G05F1/618

CPC分类号： G05F1/575

摘要： A power supply device includes an inductor controlled by switching to be charged or discharged such that a DC input voltage is boosted and a capacitor which smoothes the boosted voltage to generate a DC output voltage. Specifically, the power supply device further includes a transistor connected between the inductor and the capacitor to carry out a rectification function; an output voltage determination circuit which refers to the DC input voltage and the DC output voltage to determine the level of these voltages; and a current control circuit which controls a current flowing through the transistor such that the current has a predetermined value when the output voltage determination circuit determines that the DC output voltage is lower than the DC input voltage.

摘要翻译： 电源装置包括通过切换进行充电或放电控制的电感器，使得DC输入电压升压，以及电容器，其使升压电压平滑以产生DC输出电压。 具体地，电源装置还包括连接在电感器和电容器之间的晶体管，以实现整流功能; 输出电压确定电路，其参考DC输入电压和DC输出电压以确定这些电压的电平; 以及电流控制电路，其控制流过所述晶体管的电流，使得当所述输出电压确定电路确定所述DC输出电压低于所述DC输入电压时，所述电流具有预定值。

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：US07852059B2

公开(公告)日：2010-12-14

申请号：US11902089

申请日：2007-09-19

申请人： Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Yoichi Deguchi ,  Satoshi Wada ,  Yoshihisa Minami

发明人： Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Yoichi Deguchi ,  Satoshi Wada ,  Yoshihisa Minami

IPC分类号： G05F1/40

CPC分类号： G05F1/575

摘要： A power supply device includes an inductor controlled by switching to be charged or discharged such that a DC input voltage is boosted and a capacitor which smoothes the boosted voltage to generate a DC output voltage. Specifically, the power supply device further includes a transistor connected between the inductor and the capacitor to carry out a rectification function; an output voltage determination circuit which refers to the DC input voltage and the DC output voltage to determine the level of these voltages; and a current control circuit which controls a current flowing through the transistor such that the current has a predetermined value when the output voltage determination circuit determines that the DC output voltage is lower than the DC input voltage.

摘要翻译： 电源装置包括通过切换进行充电或放电控制的电感器，使得DC输入电压升压，以及电容器，其使升压电压平滑以产生DC输出电压。 具体地，电源装置还包括连接在电感器和电容器之间的晶体管，以实现整流功能; 输出电压确定电路，其参考DC输入电压和DC输出电压以确定这些电压的电平; 以及电流控制电路，其控制流过所述晶体管的电流，使得当所述输出电压确定电路确定所述DC输出电压低于所述DC输入电压时，所述电流具有预定值。

公开(公告)号：US20100244797A1

公开(公告)日：2010-09-30

申请号：US12726791

申请日：2010-03-18

申请人： Katsuyuki TABATA ,  Mikio Motomori

发明人： Katsuyuki TABATA ,  Mikio Motomori

IPC分类号： G05F1/10

CPC分类号： H02M1/32 ,  H02M3/158 ,  H02M2001/0009

摘要： A current limiting circuit for a boost converter includes a voltage divider circuit between a main switch which flows a current to an inductor and a comparator included in a current detecting circuit. The voltage divider circuit includes two transistors of the same type as that of the main switch, which are connected in series. One of the two transistors is a sub-switch which is connected between a voltage division point and a drain terminal of the main switch, and is turned on/off in synchronization with the main switch in accordance with an output signal of a control circuit. The other transistor is a detection resistance transistor which is connected between the voltage division point and a source terminal of the main switch, and whose gate terminal is connected to a bias voltage so that the detection resistance transistor is always on.

摘要翻译： 用于升压转换器的限流电路包括在电流流向电感器的主开关和包括在电流检测电路中的比较器之间的分压器电路。 分压器电路包括与主开关相同类型的两个串联的晶体管。 两个晶体管中的一个是子开关，其连接在主开关的分压点和漏极端子之间，并且根据控制电路的输出信号与主开关同步地导通/截止。 另一个晶体管是连接在主开关的分压点和源极端子之间的检测电阻晶体管，其栅极端子连接到偏置电压，使得检测电阻晶体管总是导通。

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。