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1. 发明申请

US20080074158A1 Step-up power supply device 有权
标题翻译：升压电源装置
公开(公告)号：US20080074158A1
公开(公告)日：2008-03-27
申请号：US11898701
申请日：2007-09-14
申请人： Takashi Ryu , Takuya Ishii , Mikio Motomori , Kazuhito Kimura , Satoshi Wada , Rumi Nakai
发明人： Takashi Ryu , Takuya Ishii , Mikio Motomori , Kazuhito Kimura , Satoshi Wada , Rumi Nakai
IPC分类号： H03L7/00
CPC分类号： H02M1/36 , Y10S323/901
摘要： A step-up power supply device includes: a step-up converter; a startup circuit which controls the on/off operation of a switch element of the step-up converter when an output voltage of the device is smaller than a reference voltage; and a control circuit which operates in substitution for the startup circuit when the output voltage is higher than the reference voltage to control the on/off operation of the switch element such that the output voltage reaches a target value. The startup circuit includes an oscillation circuit for generating a pulse signal which has a predetermined on/off ratio, a current comparison circuit for comparing a current of the switch element with a predetermined restriction value, and a drive circuit for generating a drive signal based on which the switch element is turned on/off, the drive signal being generated from the pulse signal to turn on the switch element, and the drive signal being generated from the output of the current comparison circuit or the pulse signal to turn off the switch element.
摘要翻译：升压电源装置包括：升压转换器; 启动电路，当所述器件的输出电压小于参考电压时，控制所述升压转换器的开关元件的接通/断开操作; 以及控制电路，其在输出电压高于基准电压时代替启动电路，以控制开关元件的导通/截止操作，使得输出电压达到目标值。启动电路包括用于产生具有预定的导通/关断比的脉冲信号的振荡电路，用于将开关元件的电流与预定限制值进行比较的电流比较电路，以及用于产生基于所述开关元件被接通/断开，所述驱动信号从所述脉冲信号产生，以接通所述开关元件，并且所述驱动信号是从所述当前比较电路的输出或所述脉冲信号产生的，以将所述开关元件。

2. 发明授权

US07081741B2 Multi-output power supply and electronic device using them 有权
公开(公告)号：US07081741B2
公开(公告)日：2006-07-25
申请号：US11153230
申请日：2005-06-15
申请人： Takuya Ishii , Takashi Ryu , Mikio Motomori , Hirohisa Tanabe , Masato Yoshida , Kazuhito Kimura , Tomoya Shigemi
发明人： Takuya Ishii , Takashi Ryu , Mikio Motomori , Hirohisa Tanabe , Masato Yoshida , Kazuhito Kimura , Tomoya Shigemi
IPC分类号： G05F1/577
CPC分类号： H02M3/158 , H02M2001/008
摘要： For controlling DC-DC converters conforming to voltage mode control system and current mode control system, in multi-output power supply, first converter section 2 is configured that first detection circuit 31 outputs first control signal, that first oscillation circuit 32 outputs first triangular wave signal and clock signal, and that first pulse-width modulation circuit 33 drives first switch by comparing first control signal with first triangular wave signal. Second converter section 4 is configured that second detection circuit 34 outputs second control signal, that second oscillation circuit 35 outputs second triangular wave signal synchronized with clock signal, that current detection circuit 36 outputs current signal of second inductor, and that second pulse-width modulation circuit 37 turns ON second switch in synchronization with clock signal and turns OFF second switch by calculating or comparing second control signal, the second triangular wave signal and current signal.

3. 发明授权

US07075275B2 DC-DC converter 有权
标题翻译： DC-DC转换器
公开(公告)号：US07075275B2
公开(公告)日：2006-07-11
申请号：US11280314
申请日：2005-11-17
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： G05F1/70 , H05B4/24
CPC分类号： H02M3/1588 , H02M2001/0025 , H02M2001/0029 , Y02B70/1466
摘要： A DC-DC converter has switching means which generates a continuous switching voltage having a specified period from an input voltage and outputs the generated switching voltage, output voltage generating means which receives the switching voltage at an inductor and generates an output voltage obtained by rectifying and smoothing a voltage generated in the inductor, lamp signal generating means which generates a lamp signal and outputs the generated lamp signal, and control means which performs an arithmetic operation using a current signal relative to a current flowing in the inductor, an error signal relative to the output voltage, and the lamp signal to generate a control signal for controlling the operation of the switching means and outputs the generated control signal to the switching means. The lamp signal generating means includes first signal generating means for generating a first output signal based on a frequency divided signal having first and second periods obtained by dividing the time of a clock signal having the specified period and second signal generating means for generating a second output signal having a phase 180 degrees different from the phase of the first output signal based on the frequency divided signal, generates the lamp signal which rises after being held at a constant value for a specified time period in each of the first and second periods, and outputs the generated lamp signal.
摘要翻译： DC-DC转换器具有切换装置，其从输入电压产生具有指定周期的连续切换电压，并输出产生的开关电压，输出电压产生装置，其接收电感器的开关电压，并产生通过整流和平滑电感器中产生的电压，产生灯信号的灯信号产生装置并输出所产生的灯信号;以及控制装置，其使用相对于在电感器中流动的电流的电流信号进行算术运算，相对于输出电压和灯信号，以产生用于控制开关装置的操作的控制信号，并将所生成的控制信号输出到开关装置。灯信号产生装置包括第一信号产生装置，用于根据具有通过划分具有指定周期的时钟信号的时间获得的第一和第二周期的分频信号产生第一输出信号，以及用于产生第二输出的第二信号产生装置基于分频信号具有与第一输出信号的相位相差180度的信号的信号，产生在第一和第二周期中的每个中保持恒定值一定时间后上升的灯信号，以及输出生成的灯信号。

4. 发明授权

US07479771B2 Current detection circuit and switching power supply 有权
标题翻译：电流检测电路和开关电源
公开(公告)号：US07479771B2
公开(公告)日：2009-01-20
申请号：US11843896
申请日：2007-08-23
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。

5. 发明申请

US20080018387A1 Current Detection Circuit and Switching Power Supply Using the Same 有权
标题翻译：电流检测电路和使用其的开关电源
公开(公告)号：US20080018387A1
公开(公告)日：2008-01-24
申请号：US11843896
申请日：2007-08-23
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： G05F1/10
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。

6. 发明授权

US07282900B2 Performance controller for a step down current mode switching regulator 有权
标题翻译：用于降压电流模式开关稳压器的性能控制器
公开(公告)号：US07282900B2
公开(公告)日：2007-10-16
申请号：US11206977
申请日：2005-08-19
申请人： Richard K. Oswald , Tamotsu Yamamoto , Takashi Ryu , Mikio Motomori , Takuya Ishii
发明人： Richard K. Oswald , Tamotsu Yamamoto , Takashi Ryu , Mikio Motomori , Takuya Ishii
IPC分类号： G05F1/40
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，并且如果输出电压低于期望电平，则激活高侧开关以便通过负载电感器向负载电容器提供电流，如果电压高于所需电平，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。

7. 发明授权

US07294994B2 Power supply 有权
标题翻译：电源
公开(公告)号：US07294994B2
公开(公告)日：2007-11-13
申请号：US11333312
申请日：2006-01-18
申请人： Takashi Ryu , Takuya Ishii , Mikio Motomori , Hiroki Akashi , Hirohisa Tanabe , Makoto Ishimaru , Tomoya Shigemi
发明人： Takashi Ryu , Takuya Ishii , Mikio Motomori , Hiroki Akashi , Hirohisa Tanabe , Makoto Ishimaru , Tomoya Shigemi
IPC分类号： G08F1/575
CPC分类号： H02M1/08 , H02M2001/0025
摘要： An output detection feedback section (5) for controlling the power supply output voltage of a converter unit (4) in response to an error signal Ve has an error amplifier (26) for outputting the error signal Ve, a phase compensation circuit (41), a state detection circuit (42), and a response compensation circuit (43) for setting the voltage of a capacitor (29) of the phase compensation circuit (41) to a predetermined value. When output voltage is switched, the output voltage is fixed at the predetermined value in a DC manner while a transitional response of the error signal (Ve) is accelerated, so that the output voltage is changed at a high speed to a desired value and the overshoot and undershoot are suppressed around the desired value.
摘要翻译：用于响应于误差信号Ve控制转换器单元（4）的电源输出电压的输出检测反馈部分（5）具有用于输出误差信号Ve的误差放大器（26），相位补偿电路（41）状态检测电路（42）以及用于将相位补偿电路（41）的电容器（29）的电压设定为规定值的响应补偿电路（43）。当切换输出电压时，在加速误差信号（Ve）的过渡响应的同时，以直流方式将输出电压固定为规定值，使得输出电压以高速变化为期望值，过冲和下冲被抑制在所需值附近。

8. 发明申请

US20070182390A1 Drive circuit and switching regulator comprising the same 有权
标题翻译：驱动电路和包括其的开关调节器
公开(公告)号：US20070182390A1
公开(公告)日：2007-08-09
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： G05F1/00
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。

9. 发明申请

US20070018628A1 DC-DC converter 有权
标题翻译： DC-DC转换器
公开(公告)号：US20070018628A1
公开(公告)日：2007-01-25
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： G05F1/00
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。

10. 发明申请

US20060131961A1 Multi-output power supply circuit 审中-公开
标题翻译：多路输出电源电路
公开(公告)号：US20060131961A1
公开(公告)日：2006-06-22
申请号：US11283582
申请日：2005-11-18
申请人： Takuya Ishii , Takashi Ryu , Mikio Motomori , Hiroki Akashi , Hirohisa Tanabe , Makoto Ishimaru , Tomoya Shigemi , Masato Yoshida
发明人： Takuya Ishii , Takashi Ryu , Mikio Motomori , Hiroki Akashi , Hirohisa Tanabe , Makoto Ishimaru , Tomoya Shigemi , Masato Yoshida
IPC分类号： H02J3/14 , H02J1/00
CPC分类号： H02M3/158 , H02M2001/007 , H02M2001/008 , H02M2001/009 , Y10T307/406
摘要： A multi-output power supply circuit comprising a switching circuit 10 having a series circuit of a high-side switch 11 and a low-side switch 12, connected in parallel with an input DC power supply 1, and a step-down control circuit 13, and multiple step-up circuits 20 and 30 connected to the output terminal of the switching circuit, wherein each step-up circuit has an inductor connected to the output terminal of the switching circuit, a step-up switch, a step-up rectifier, smoothing means for outputting an output DC voltage, and a step-up control circuit for driving the step-up switch.
摘要翻译：一种多输出电源电路，包括具有与输入DC电源1并联连接的高侧开关11和低侧开关12的串联电路的开关电路10和降压控制电路13 以及连接到开关电路的输出端子的多个升压电路20和30，其中每个升压电路具有连接到开关电路的输出端子的电感器，升压开关，升压整流器，用于输出输出直流电压的平滑装置和用于驱动升压开关的升压控制电路。

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