公开(公告)号：US07403365B2

公开(公告)日：2008-07-22

申请号：US11505821

申请日：2006-08-18

申请人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Kawakubo ,  Kozaburo Kurita

发明人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Kawakubo ,  Kozaburo Kurita

IPC分类号： H02H9/08

CPC分类号： H02M1/32 ,  H02M3/156 ,  H02M2001/0009

摘要： An over-current detection circuit using the ON-voltage of a main MOSFET is provided, which is resistant to process variations of a main MOSFET and is not easily influenced by switching noise. Separately from a main MOSFET (Q1), a sense MOSFET (Q3) whose size is 1/m of the main MOSFET is provided and it is caused to be normally on. A DC ON-voltage generated when a current that is 1/m of an over-current value is caused to flow through the sense MOSFET is obtained as a reference voltage for over-current setting. The ON-voltage when the main MOSFET is on is sampled and held, and it is obtained as a DC voltage. These DC voltages are compared in a comparator (COMP).

摘要翻译： 提供了使用主MOSFET的导通电压的过电流检测电路，其抵抗主MOSFET的工艺变化，并且不容易受到开关噪声的影响。 与主MOSFET（Q1）分开，提供尺寸为主MOSFET的1 / m的感测MOSFET（Q 3），并使其正常导通。 获得当使过电流值为1 / m的电流通过感测MOSFET流过时产生的直流导通电压作为过电流设定的基准电压。 主MOSFET导通时的导通电压进行采样保持，作为直流电压获得。 在比较器（COMP）中比较这些直流电压。

公开(公告)号：US20070188958A1

公开(公告)日：2007-08-16

申请号：US11505821

申请日：2006-08-18

申请人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Kawakubo ,  Kozaburo Kurita

发明人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Kawakubo ,  Kozaburo Kurita

IPC分类号： H02H3/08 ,  H02H9/02

CPC分类号： H02M1/32 ,  H02M3/156 ,  H02M2001/0009

摘要： An over-current detection circuit using the ON-voltage of a main MOSFET is provided, which is resistant to process variations of a main MOSFET and is not easily influenced by switching noise. Separately from a main MOSFET (Q1), a sense MOSFET (Q3) whose size is 1/m of the main MOSFET is provided and it is caused to be normally on. A DC ON-voltage generated when a current that is 1/m of an over-current value is caused to flow through the sense MOSFET is obtained as a reference voltage for over-current setting. The ON-voltage when the main MOSFET is on is sampled and held, and it is obtained as a DC voltage. These DC voltages are compared in a comparator (COMP).

摘要翻译： 提供了使用主MOSFET的导通电压的过电流检测电路，其抵抗主MOSFET的工艺变化，并且不容易受到开关噪声的影响。 与主MOSFET（Q1）分开，提供尺寸为主MOSFET的1 / m的感测MOSFET（Q 3），并使其正常导通。 获得当使过电流值为1 / m的电流通过感测MOSFET流过时产生的直流导通电压作为过电流设定的基准电压。 主MOSFET导通时的导通电压进行采样保持，作为直流电压获得。 在比较器（COMP）中比较这些直流电压。

公开(公告)号：US07615980B2

公开(公告)日：2009-11-10

申请号：US11320872

申请日：2005-12-30

申请人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Kawakubo

发明人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Kawakubo

IPC分类号： G05F1/40

CPC分类号： H02M3/156 ,  H02M2001/0025

摘要： A power-supply device including a marginal check voltage setting circuit that is easily adaptable to downsizing of the device and to configuration using ICs. The power-supply device of this invention includes a marginal check voltage setting circuit that sets a desired marginal check voltage, an error amplifier that delivers output of an error signal, a pulse width modulation oscillator that modulates the pulse width of the output from the error amplifier, a driver circuit that generates driving signal from the pulse signal originating from the pulse width modulation oscillator, and a pair of power semiconductor switching devices that work to step down the input voltage and generate an output voltage based on the driving signal. Furthermore, the power-supply device is also provided with an over-voltage detection circuit and a power-good circuit both circuits being positioned at the output terminal of the marginal check voltage setting circuit.

摘要翻译： 一种电源装置，包括边缘检查电压设置电路，其容易适应于设备的小型化以及使用IC的配置。 本发明的电源装置包括设置期望的边缘检查电压的边缘检查电压设置电路，提供误差信号的输出的误差放大器，调制脉冲宽度的脉冲宽度的脉冲宽度调制振荡器 放大器，根据源自脉宽调制振荡器的脉冲信号产生驱动信号的驱动电路，以及一对功率半导体开关器件，用于降低输入电压并基于驱动信号产生输出电压。 此外，电源装置还设置有过电压检测电路和电源良好电路，两个电路位于边缘检查电压设置电路的输出端。

公开(公告)号：US20070120540A1

公开(公告)日：2007-05-31

申请号：US11320872

申请日：2005-12-30

申请人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Kawakubo

发明人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Kawakubo

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M2001/0025

摘要： A power-supply device comprising such marginal check voltage setting circuit that is easily adaptable to downsizing of the device and to configuration using ICs. The power-supply device of this invention comprises a marginal check voltage setting circuit that accepts input of a reference voltage and sets a desired marginal check voltage, an error amplifier that accepts input of the marginal check voltage and also the output voltage of the power-supply device and delivers output of an error signal, that is, the difference between the two inputs, a pulse width modulation oscillator that modulates the pulse width of the output from the error amplifier, a driver circuit that generates driving signal from the pulse signal originating from the pulse width modulation oscillator, and a pair of power semiconductor switching devices that work to step down the input voltage and generate an output voltage based on the driving signal. Furthermore, the power-supply device is also provided with an over-voltage detection circuit that sets an over-voltage detection reference voltage, and a power-good circuit that sets a power-good determination reference voltage, both circuits being positioned at the output terminal of the marginal check voltage setting circuit.

摘要翻译： 一种电源装置，包括这种边缘检查电压设置电路，其容易适应于设备的小型化和使用IC的配置。 本发明的电源装置包括边缘检查电压设置电路，其接受参考电压的输入并设置期望的边际检查电压，误差放大器，其接受边际检查电压的输入以及接收电源的输出电压， 提供装置并输出误差信号的输出，即，两个输入之间的差异，调制误差放大器的输出的脉冲宽度的脉宽调制振荡器，产生来自脉冲信号的驱动信号的驱动电路 以及一对功率半导体开关器件，用于降低输入电压并基于驱动信号产生输出电压。 此外，电源装置还设置有设置过电压检测基准电压的过电压检测电路，以及设定功率良好判定基准电压的电力供给电路，两个电路位于输出端 边缘检查电压设定电路的端子。

公开(公告)号：US20090021227A1

公开(公告)日：2009-01-22

申请号：US12019761

申请日：2008-01-25

申请人： Takashi Sase ,  Yosuke Kawakubo ,  Kozaburo Kurita

发明人： Takashi Sase ,  Yosuke Kawakubo ,  Kozaburo Kurita

IPC分类号： G05F1/44 ,  G05F1/00

CPC分类号： H02M1/36 ,  H02M3/156 ,  H02M2001/0009

摘要： An electric current flowing to an upper side power MOSFET during soft-start is detected according to an on-voltage of the MOSFET and an on-pulse width of a PWM pulse for driving the upper side power MOSFET is forced to be reset in the idle and decided according to a signal generated when the voltage falls below a predetermined specified voltage.

摘要翻译： 根据MOSFET的导通电压检测软启动期间流向上侧功率MOSFET的电流，驱动上侧功率MOSFET的PWM脉冲的导通脉冲宽度被迫在空闲状态下复位 并根据当电压低于预定的规定电压时产生的信号来决定。

公开(公告)号：US07990122B2

公开(公告)日：2011-08-02

申请号：US11853916

申请日：2007-09-12

申请人： Takashi Sase ,  Yosuke Kawakubo

发明人： Takashi Sase ,  Yosuke Kawakubo

IPC分类号： G05F1/575

CPC分类号： H02M3/157

摘要： To provide a digital control switching power-supply device capable of suitably achieving fast transient response at the time of a sudden load change. In parallel with normal digital signal processing means that outputs a PWM pulse signal having a desired duty, transient variation detection means composed of a CR filter provided across an output inductor and a window comparator is provided in preparation for a sudden load change. If a sudden decrease in load is detected, a PWM pulse signal having a duty of 0% is forcedly output, and if a sudden increase in load is detected, a PWM pulse signal having a duty of 100% is forcedly output.

摘要翻译： 提供能够在突然负载变化时适当地实现快速瞬态响应的数字控制开关电源装置。 与正常的数字信号处理装置并行地输出具有期望占空比的PWM脉冲信号，提供由跨过输出电感器提供的CR滤波器和窗口比较器组成的瞬态变化检测装置，用于突然的负载变化。 如果检测到负载突然减小，则强制输出占空比为0％的PWM脉冲信号，如果检测到负载突然增加，则强制输出占空比为100％的PWM脉冲信号。

公开(公告)号：US20080252277A1

公开(公告)日：2008-10-16

申请号：US11853916

申请日：2007-09-12

申请人： Takashi Sase ,  Yosuke Kawakubo

发明人： Takashi Sase ,  Yosuke Kawakubo

IPC分类号： G05F1/575

CPC分类号： H02M3/157

摘要： To provide a digital control switching power-supply device capable of suitably achieving fast transient response at the time of a sudden load change. In parallel with normal digital signal processing means that outputs a PWM pulse signal having a desired duty, transient variation detection means composed of a CR filter provided across an output inductor and a window comparator is provided in preparation for a sudden load change. If a sudden decrease in load is detected, a PWM pulse signal having a duty of 0% is forcedly output, and if a sudden increase in load is detected, a PWM pulse signal having a duty of 100% is forcedly output.

摘要翻译： 提供能够在突然负载变化时适当地实现快速瞬态响应的数字控制开关电源装置。 与正常的数字信号处理装置并行地输出具有期望占空比的PWM脉冲信号，提供由跨过输出电感器提供的CR滤波器和窗口比较器组成的瞬态变化检测装置，用于突然的负载变化。 如果检测到负载突然减小，则强制输出占空比为0％的PWM脉冲信号，如果检测到负载突然增加，则强制输出占空比为100％的PWM脉冲信号。

公开(公告)号：USRE43946E1

公开(公告)日：2013-01-29

申请号：US13399572

申请日：2012-02-17

申请人： Takashi Sase ,  Yosuke Kawakubo

发明人： Takashi Sase ,  Yosuke Kawakubo

IPC分类号： G05F1/575

CPC分类号： H02M3/157

摘要： To provide a A digital control switching power-supply device is provided which is capable of suitably achieving fast transient response at the time of a sudden load change. In parallel with normal digital signal processing means that outputs a PWM pulse signal having a desired duty, transient variation detection means composed of a CR filter provided across an output inductor and a window comparator is provided in preparation for a sudden load change. If a sudden decrease in load is detected, a PWM pulse signal having a duty of 0% is forcedly output, and if a sudden increase in load is detected, a PWM pulse signal having a duty of 100% is forcedly output.

摘要翻译： 提供一种A数字控制开关电源装置，其能够在突然的负载变化时适当地实现快速的瞬态响应。 与正常的数字信号处理装置并行地输出具有期望占空比的PWM脉冲信号，提供由跨过输出电感器提供的CR滤波器和窗口比较器组成的瞬态变化检测装置，用于突然的负载变化。 如果检测到负载突然减小，则强制输出占空比为0％的PWM脉冲信号，如果检测到负载突然增加，则强制输出占空比为100％的PWM脉冲信号。

公开(公告)号：US07089435B2

公开(公告)日：2006-08-08

申请号：US10820129

申请日：2004-04-08

申请人： Yosuke Kawakubo

发明人： Yosuke Kawakubo

IPC分类号： G06F1/26

CPC分类号： G06F11/2015 ,  G06F1/30 ,  G06F11/1441

摘要： A feeding technique for a storage unit is provided, in which power can be supplied from an optimum power source depending on an operation mode of a cache memory, the stable switching of feeding paths can be performed, and the feeding with high voltage accuracy and small voltage variation can be achieved. For its achievement, the feeding system in the RAID system including a hard disk drive, a disk adaptor, a channel adaptor, and a cache memory is provided. The feeding system includes a DC-DC power source to supply, to the cache memory, the voltage for a normal operation mode in which the data is written/read to/from the cache memory, and a DC-DC power source to supply, to the cache memory, the voltage for a backup operation mode in which the data stored in the cache memory is retained, and the power sources are switched during the feeding depending on the operation mode of the cache memory.

摘要翻译： 提供一种用于存储单元的馈电技术，其中可以根据高速缓冲存储器的操作模式从最佳电源供电，可以执行馈送路径的稳定切换，并且高电压精度和小的馈电 可以实现电压变化。 为了实现，提供了包括硬盘驱动器，磁盘适配器，通道适配器和高速缓冲存储器的RAID系统中的馈送系统。 馈电系统包括DC-DC电源，用于向高速缓冲存储器提供用于将数据写入/读取到高速缓冲存储器的正常操作模式的电压，以及DC-DC电源， 高速缓存存储器中，存储在高速缓冲存储器中的数据的备份操作模式的电压被保持，并且根据高速缓冲存储器的操作模式在馈电期间切换电源。

公开(公告)号：US20050182991A1

公开(公告)日：2005-08-18

申请号：US10820129

申请日：2004-04-08

申请人： Yosuke Kawakubo

发明人： Yosuke Kawakubo

IPC分类号： G06F1/26 ,  G06F11/00

CPC分类号： G06F11/2015 ,  G06F1/30 ,  G06F11/1441

摘要： A feeding technique for a storage unit is provided, in which power can be supplied from an optimum power source depending on an operation mode of a cache memory, the stable switching of feeding paths can be performed, and the feeding with high voltage accuracy and small voltage variation can be achieved. For its achievement, the feeding system in the RAID system including a hard disk drive, a disk adaptor, a channel adaptor, and a cache memory is provided. The feeding system includes a DC-DC power source to supply, to the cache memory, the voltage for a normal operation mode in which the data is written/read to/from the cache memory, and a DC-DC power source to supply, to the cache memory, the voltage for a backup operation mode in which the data stored in the cache memory is retained, and the power sources are switched during the feeding depending on the operation mode of the cache memory.

摘要翻译： 提供一种用于存储单元的馈电技术，其中可以根据高速缓冲存储器的操作模式从最佳电源供电，可以执行馈送路径的稳定切换，并且高电压精度和小的馈电 可以实现电压变化。 为了实现，提供了包括硬盘驱动器，磁盘适配器，通道适配器和高速缓冲存储器的RAID系统中的馈送系统。 馈电系统包括DC-DC电源，用于向高速缓冲存储器提供用于将数据写入/读取到高速缓冲存储器的正常操作模式的电压，以及DC-DC电源， 高速缓存存储器中，存储在高速缓冲存储器中的数据的备份操作模式的电压被保持，并且根据高速缓冲存储器的操作模式在馈电期间切换电源。