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1. 发明授权

US07825646B2 Step-up converter 有权
标题翻译：升压转换器
公开(公告)号：US07825646B2
公开(公告)日：2010-11-02
申请号：US11905399
申请日：2007-09-28
申请人： Takuya Ishii , Mikio Motomori , Junichi Morita , Takashi Ryu , Masaaki Koto , Makoto Ishimaru , Kazuhito Kimura , Satoshi Wada
发明人： Takuya Ishii , Mikio Motomori , Junichi Morita , Takashi Ryu , Masaaki Koto , Makoto Ishimaru , Kazuhito Kimura , Satoshi Wada
IPC分类号： G05F1/40
CPC分类号： H02M3/156
摘要： The present invention provides a current-mode control step-up converter capable of reducing the minimum duty ratio to a sufficiently small value and facilitating the setting of the maximum duty ratio. The step-up converter comprises a current detector 9 for generating a current detection signal Vc corresponding to the current of a rectifier 4; an error amplifier 8 for generating an error signal Ve corresponding to an output DC voltage Vo; and a control circuit 10 for turning ON/OFF the main switch 3 on the basis of the current detection signal Vc and the error signal Ve. The control circuit 10 comprises a comparator 11 and a timer circuit 12. With this configuration, the ON time of the main switch 3 is set at a predetermined value, and the valley value of an inductor current changing in a triangular waveform is controlled. Hence, the OFF time of the main switch is adjusted to stabilize the output. Since the ON time of the main switch 3 can be set as desired, the minimum duty ratio can be reduced to zero or a sufficiently small value.
摘要翻译：本发明提供了一种电流模式控制升压转换器，其能够将最小占空比降低到足够小的值，并且有助于设定最大占空比。升压转换器包括用于产生与整流器4的电流相对应的电流检测信号Vc的电流检测器9; 用于产生对应于输出DC电压Vo的误差信号Ve的误差放大器8; 以及用于根据电流检测信号Vc和误差信号Ve导通/断开主开关3的控制电路10。控制电路10包括比较器11和定时器电路12.通过这种配置，主开关3的接通时间被设定为预定值，并且控制以三角波形变化的电感器电流的谷值。因此，主开关的断开时间被调节以稳定输出。由于可以根据需要设定主开关3的导通时间，所以可以将最小占空比降低到零或足够小的值。

2. 发明申请

US20080211475A1 Step-up converter 有权
标题翻译：升压转换器
公开(公告)号：US20080211475A1
公开(公告)日：2008-09-04
申请号：US11905399
申请日：2007-09-28
申请人： Takuya Ishii , Mikio Motomori , Junichi Morita , Takashi Ryu , Masaaki Koto , Makoto Ishimaru , Kazuhito Kimura , Satoshi Wada
发明人： Takuya Ishii , Mikio Motomori , Junichi Morita , Takashi Ryu , Masaaki Koto , Makoto Ishimaru , Kazuhito Kimura , Satoshi Wada
IPC分类号： G05F1/565
CPC分类号： H02M3/156
摘要： The present invention provides a current-mode control step-up converter capable of reducing the minimum duty ratio to a sufficiently small value and facilitating the setting of the maximum duty ratio. The step-up converter comprises a current detector 9 for generating a current detection signal Vc corresponding to the current of a rectifier 4; an error amplifier 8 for generating an error signal Ve corresponding to an output DC voltage Vo; and a control circuit 10 for turning ON/OFF the main switch 3 on the basis of the current detection signal Vc and the error signal Ve. The control circuit 10 comprises a comparator 11 and a timer circuit 12. With this configuration, the ON time of the main switch 3 is set at a predetermined value, and the valley value of an inductor current changing in a triangular waveform is controlled. Hence, the OFF time of the main switch is adjusted to stabilize the output. Since the ON time of the main switch 3 can be set as desired, the minimum duty ratio can be reduced to zero or a sufficiently small value.
摘要翻译：本发明提供了一种电流模式控制升压转换器，其能够将最小占空比降低到足够小的值，并且有助于设定最大占空比。升压转换器包括用于产生与整流器4的电流相对应的电流检测信号Vc的电流检测器9; 用于产生对应于输出DC电压Vo的误差信号Ve的误差放大器8; 以及用于根据电流检测信号Vc和误差信号Ve导通/断开主开关3的控制电路10。控制电路10包括比较器11和定时器电路12。利用这种配置，主开关3的接通时间被设定为预定值，并且控制以三角波形变化的电感器电流的谷值。因此，主开关的断开时间被调节以稳定输出。由于可以根据需要设定主开关3的导通时间，所以可以将最小占空比降低到零或足够小的值。

3. 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。

4. 发明授权

US07567069B2 Step-up power supply device 有权
标题翻译：升压电源装置
公开(公告)号：US07567069B2
公开(公告)日：2009-07-28
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： G05F1/40 , H02M3/18
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。

5. 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。

6. 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.

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

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。

9. 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。

10. 发明申请

US20060044724A1 Multi-output power supply and electronic device using them 有权
标题翻译：多输出电源和使用它们的电子设备
公开(公告)号：US20060044724A1
公开(公告)日：2006-03-02
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： H02H3/20
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.
摘要翻译：为了控制符合电压模式控制系统和电流模式控制系统的DC-DC转换器，在多输出电源中，第一转换器部分2被配置为：第一检测电路31输出第一控制信号，第一振荡电路32输出第一三角波信号和时钟信号，并且第一脉冲宽度调制电路33通过将第一控制信号与第一三角波信号进行比较来驱动第一开关。第二转换器部分4被配置为第二检测电路34输出第二控制信号，第二振荡电路35输出与时钟信号同步的第二三角波信号，电流检测电路36输出第二电感器的电流信号，第二脉冲宽度调制电路37与时钟信号同步地接通第二开关，并通过计算或比较第二控制信号，第二三角波信号和电流信号来关断第二开关。

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