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公开(公告)号:US20080273354A1
公开(公告)日:2008-11-06
申请号:US11547487
申请日:2005-03-24
申请人: Takashi Ryu , Hiroki Akashi , Takuya Ishii , Hiroshi Saito
发明人: Takashi Ryu , Hiroki Akashi , Takuya Ishii , Hiroshi Saito
IPC分类号: H02M3/335
CPC分类号: H02M3/156
摘要: There are provided an inductive load current control circuit for detecting and controlling a current flowing to an inductive load with high accuracy, and a power supply.The inductive load current control circuit includes first and second switch elements connected in series between an input voltage and a ground potential, an inductive load connected to a connection point between the first and second switch elements, a third switch element having one terminal connected to the connection point between the first and second switch elements, a current comparator connected to another terminal of the third switch element to compare an output current of the third switch element with a reference current, decide and output a magnitude relation, and a switch element control circuit that controls transition from a state in which the second switch element is turned on to a state in which the first switch element is turned on according to an output of the current comparator.
摘要翻译: 提供了一种感应负载电流控制电路,用于高精度地检测和控制流向电感负载的电流和电源。 感性负载电流控制电路包括串联连接在输入电压和接地电位之间的第一和第二开关元件,连接到第一和第二开关元件之间的连接点的电感负载,第三开关元件,其一个端子连接到 第一开关元件和第二开关元件之间的连接点,连接到第三开关元件的另一端子的电流比较器,以将第三开关元件的输出电流与参考电流进行比较,确定并输出幅度关系,以及开关元件控制电路 其根据电流比较器的输出控制从第二开关元件导通的状态到第一开关元件导通的状态的转变。
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公开(公告)号:US07592792B2
公开(公告)日:2009-09-22
申请号:US11547487
申请日:2005-03-24
申请人: Takashi Ryu , Hiroki Akashi , Takuya Ishii , Hiroshi Saito
发明人: Takashi Ryu , Hiroki Akashi , Takuya Ishii , Hiroshi Saito
CPC分类号: H02M3/156
摘要: There are provided an inductive load current control circuit for detecting and controlling a current flowing to an inductive load with high accuracy, and a power supply.The inductive load current control circuit includes first and second switch elements connected in series between an input voltage and a ground potential, an inductive load connected to a connection point between the first and second switch elements, a third switch element having one terminal connected to the connection point between the first and second switch elements, a current comparator connected to another terminal of the third switch element to compare an output current of the third switch element with a reference current, decide and output a magnitude relation, and a switch element control circuit that controls transition from a state in which the second switch element is turned on to a state in which the first switch element is turned on according to an output of the current comparator.
摘要翻译: 提供了一种感应负载电流控制电路,用于高精度地检测和控制流向电感负载的电流和电源。 感性负载电流控制电路包括串联连接在输入电压和接地电位之间的第一和第二开关元件,连接到第一和第二开关元件之间的连接点的电感负载,第三开关元件,其一个端子连接到 第一开关元件和第二开关元件之间的连接点,连接到第三开关元件的另一端子的电流比较器,以将第三开关元件的输出电流与参考电流进行比较,确定并输出幅度关系,以及开关元件控制电路 其根据电流比较器的输出控制从第二开关元件导通的状态到第一开关元件导通的状态的转变。
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公开(公告)号:US07250746B2
公开(公告)日:2007-07-31
申请号:US11092814
申请日:2005-03-30
申请人: Richard K. Oswald , Tamotsu Yamamoto , Hiroshi Saito , Takuya Ishii , Takashi Ryu , Hiroki Akashi , Takeshi Tanaka
发明人: Richard K. Oswald , Tamotsu Yamamoto , Hiroshi Saito , Takuya Ishii , Takashi Ryu , Hiroki Akashi , Takeshi Tanaka
CPC分类号: H02M3/156
摘要: A power supply switching regulator including a common terminal; an input terminal for supplying a direct current input; an output terminal; a recirculating diode having a first terminal connected to the common terminal; an inductor having a first terminal connected to a second terminal of the recirculation diode and a second terminal connected to the output terminal; a capacitor having a first terminal connected to the output terminal and a second terminal connected to the common terminal; a switch connected between the input terminal and the first terminal of the inductor, the switch operable for switching between an ON state in which the direct current input is coupled to the inductor, and an OFF state in which the direct current input is isolated from the inductor; and a controller coupled to the switch and operable for controlling the amount of time the switch is in the ON state and the OFF state such that the duration of time the switch is in the ON state is inversely proportional to the difference between the voltage at the input terminal and the voltage at the output terminal.
摘要翻译: 一种电源开关调节器,包括公共端子; 用于提供直流输入的输入端; 输出端子; 循环二极管,其具有连接到所述公共端子的第一端子; 电感器,其具有连接到所述再循环二极管的第二端子的第一端子和连接到所述输出端子的第二端子; 电容器,其具有连接到所述输出端子的第一端子和连接到所述公共端子的第二端子; 连接在电感器的输入端子和第一端子之间的开关,所述开关可操作用于在其中直流输入耦合到电感器的导通状态和直流输入与电感器隔离的截止状态之间切换 电感; 以及控制器,其耦合到所述开关并且可操作用于控制所述开关处于导通状态和断开状态的时间量,使得所述开关处于导通状态的持续时间与所述开关处于所述开关状态的电压之间的差成反比 输入端子和输出端子的电压。
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公开(公告)号:US07119521B2
公开(公告)日:2006-10-10
申请号:US10811675
申请日:2004-03-29
申请人: Takuya Ishii , Hiroshi Saito , Kazuhiko Nagaoka
发明人: Takuya Ishii , Hiroshi Saito , Kazuhiko Nagaoka
CPC分类号: H02M3/33561
摘要: A multi-output DC-DC converter comprising a plurality of converters configured so that an inductor 2 and a main switch 31 are used in common, wherein a first output voltage Vo1 is output from a circuit comprising a diode 41 and a first output capacitor 51, and a second output voltage Vo2 is output from a circuit comprising an auxiliary switch 32, a diode 42 and a second output capacitor 52. The control circuit 80 of the multi-output DC-DC converter has an output detection circuit 81, an oscillation circuit 82, a PWM circuit 83, a frequency divider circuit 84 and a drive circuit 85, and controls a plurality of outputs at high efficiency and reliability.
摘要翻译: 一种多输出DC-DC转换器,包括多个转换器,其被配置为使得电感器2和主开关31共同使用,其中第一输出电压Vo 1从包括二极管41和第一输出电容器 51,并且从包括辅助开关32,二极管42和第二输出电容器52的电路输出第二输出电压Vo 2。 多输出DC-DC转换器的控制电路80具有输出检测电路81,振荡电路82,PWM电路83,分频器电路84和驱动电路85,并以高效率控制多个输出 和可靠性。
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5.
公开(公告)号:US06946820B2
公开(公告)日:2005-09-20
申请号:US10450768
申请日:2002-09-05
申请人: Takuya Ishii , Nobuyoshi Nagagata , Hiroshi Saito
发明人: Takuya Ishii , Nobuyoshi Nagagata , Hiroshi Saito
CPC分类号: H02M3/1584 , H02M3/1582 , H02M2001/007 , H02M2001/009
摘要: In order to supply controlled DC voltages to a plurality of loads at high efficiency by using smaller number of components, a multiple output DC-DC converter in accordance with the present invention comprises a first main switch 21, one terminal of which is connected to the negative electrode of an input DC power source 1, a first rectifying means 51 and a first smoothing means 61 connected to the other terminal of the first main switch 21, a second main switch 22, one terminal of which is connected to the positive terminal of the input DC power source 1, a second rectifying means 52 and a second smoothing means 62 connected to the other terminal of the second main switch 22, an inductor 31 connected between the other terminal of the first main switch 21 and the other terminal of the second main switch 22, and a control circuit 81 for driving the respective switches at predetermined ON/OFF period ratios.
摘要翻译: 为了通过使用较少数量的组件以高效率向多个负载提供受控直流电压,根据本发明的多输出DC-DC转换器包括第一主开关21,其一端连接到 输入直流电源1的负极,第一整流装置51和连接到第一主开关21的另一端的第一平滑装置61,第二主开关22的一端连接到 连接到第二主开关22的另一个端子的输入直流电源1,第二整流装置52和第二平滑装置62,连接在第一主开关21的另一个端子和第二主开关22的另一个端子之间的电感器31 第二主开关22和用于以预定的ON / OFF周期比率驱动各个开关的控制电路81。
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公开(公告)号:US06831448B2
公开(公告)日:2004-12-14
申请号:US10427487
申请日:2003-05-01
申请人: Takuya Ishii , Hiroshi Saito , Hironori Kamiya , Takashi Ryu
发明人: Takuya Ishii , Hiroshi Saito , Hironori Kamiya , Takashi Ryu
IPC分类号: G05F140
CPC分类号: H02M3/158 , H02M3/1582
摘要: In order to increase the transient response speed of a DC-to-DC converter capable of voltage step-up and voltage step-down, to which a DC voltage is input from a battery or the like and from which a controlled DC voltage is supplied to a load, a first voltage E1 lower than an output setting voltage Eset by a predetermined voltage is defined and is compared with a DC output voltage Eo by a first comparator, and the result of the comparison is output. @a A second voltage E2 lower than a DC input voltage Ei by a predetermined voltage is defined and is compared with the DC output voltage Eo by a second comparator 133, and the result of the comparison is also output. When the results of the comparisons are represented by Eo
摘要翻译: 为了增加能够进行升压和降压的DC-DC转换器的瞬态响应速度,从电池等输入直流电压并从其提供受控直流电压 定义一个低于输出设定电压Eset的预定电压的第一电压E1并通过第一比较器与直流输出电压Eo进行比较,并输出比较结果。 定义了低于直流输入电压Ei的预定电压的第二电压E2,并且通过第二比较器133与直流输出电压Eo进行比较,并且还输出比较结果。 当比较结果由Eo
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公开(公告)号:US20060220629A1
公开(公告)日:2006-10-05
申请号:US11396647
申请日:2006-04-04
申请人: Hiroshi Saito , Ryou Watabe , Takuya Ishii
发明人: Hiroshi Saito , Ryou Watabe , Takuya Ishii
IPC分类号: G05F1/00
CPC分类号: H02M3/1588 , H02M3/157 , Y02B70/1466
摘要: A DC-DC converter includes a switch, a rectifier, a smoothing circuit, and a control circuit. The control circuit includes an output detection circuit for outputting an error signal, a current detection circuit for outputting a current detection signal in a period in which at least the switch is OFF, a first circuit for outputting a first signal for setting a timing of turning ON of the switch according to a comparison result between the error signal and the current detection signal, and a second circuit for outputting a second signal for setting an ON time of the switch, according to a reduction in output power from the smoothing circuit, so that the ON time of the switch is reduced, and generates the control signal, based on the first and second signals.
摘要翻译: DC-DC转换器包括开关,整流器,平滑电路和控制电路。 控制电路包括:输出检测电路,用于输出误差信号;电流检测电路,用于在至少开关断开的时段内输出电流检测信号;第一电路,用于输出用于设定转动定时的第一信号 根据误差信号和电流检测信号之间的比较结果,开关的导通,以及根据来自平滑电路的输出功率的降低而输出用于设定开关的接通时间的第二信号的第二电路,因此 减小开关的接通时间,并且基于第一和第二信号产生控制信号。
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公开(公告)号:US07075277B2
公开(公告)日:2006-07-11
申请号:US10468704
申请日:2002-12-12
申请人: Takuya Ishii , Hiroshi Saito
发明人: Takuya Ishii , Hiroshi Saito
IPC分类号: G05F1/24
CPC分类号: H02M3/1582
摘要: A DC—DC converter that receives input of a direct current voltage such as a battery and supplies a controlled direct current voltage to a load is simplified. It comprises a voltage step-down converter section consisting of a first switch 2, a first rectifying means 3 and an inductor 4, a voltage step-up converter section consisting of an inductor 4, a second switch 5 and a second rectifying means 6, and a control section consisting of an output capacitor 7, an error amplifying circuit 10, an oscillation circuit 11 and a pulse width control circuit 12. An oscillation voltage Vt from the oscillation circuit 11 is compared with an error voltage Ve from the error amplifying circuit 10 and a duty ratio of each switch is adjusted to control the operation of voltage step-down, voltage step-up and step-down, and voltage step-up.
摘要翻译: 接收直流电压(例如电池)的输入并向负载提供受控直流电压的DC-DC转换器。 它包括由第一开关2,第一整流装置3和电感器4组成的降压转换器部分,由电感器4,第二开关5和第二整流装置6组成的升压转换器部分, 以及由输出电容器7,误差放大电路10,振荡电路11和脉冲宽度控制电路12构成的控制部。 将来自振荡电路11的振荡电压Vt与来自误差放大电路10的误差电压Ve进行比较,调整各开关的占空比,控制降压,升压降压的动作, 和电压升压。
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公开(公告)号:US20050218877A1
公开(公告)日:2005-10-06
申请号:US11092814
申请日:2005-03-30
申请人: Richard Oswald , Tamotsu Yamamoto , Hiroshi Saito , Takuya Ishii , Takashi Ryu , Hiroki Akashi , Takeshi Tanaka
发明人: Richard Oswald , Tamotsu Yamamoto , Hiroshi Saito , Takuya Ishii , Takashi Ryu , Hiroki Akashi , Takeshi Tanaka
CPC分类号: H02M3/156
摘要: A power supply switching regulator including a common terminal; an input terminal for supplying a direct current input; an output terminal; a recirculating diode having a first terminal connected to the common terminal; an inductor having a first terminal connected to a second terminal of the recirculation diode and a second terminal connected to the output terminal; a capacitor having a first terminal connected to the output terminal and a second terminal connected to the common terminal; a switch connected between the input terminal and the first terminal of the inductor, the switch operable for switching between an ON state in which the direct current input is coupled to the inductor, and an OFF state in which the direct current input is isolated from the inductor; and a controller coupled to the switch and operable for controlling the amount of time the switch is in the ON state and the OFF state such that the duration of time the switch is in the ON state is inversely proportional to the difference between the voltage at the input terminal and the voltage at the output terminal.
摘要翻译: 一种电源开关调节器,包括公共端子; 用于提供直流输入的输入端; 输出端子; 循环二极管,其具有连接到所述公共端子的第一端子; 电感器,其具有连接到所述再循环二极管的第二端子的第一端子和连接到所述输出端子的第二端子; 电容器,其具有连接到所述输出端子的第一端子和连接到所述公共端子的第二端子; 连接在电感器的输入端子和第一端子之间的开关,所述开关可操作用于在其中直流输入耦合到电感器的导通状态和直流输入与电感器隔离的截止状态之间切换 电感; 以及控制器,其耦合到所述开关并且可操作用于控制所述开关处于导通状态和断开状态的时间量,使得所述开关处于导通状态的持续时间与所述开关处于所述开关状态的电压之间的差成反比 输入端子和输出端子的电压。
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10.
公开(公告)号:US09509235B2
公开(公告)日:2016-11-29
申请号:US14128519
申请日:2012-06-21
申请人: Tatsuo Furuta , Hiroshi Saito , Makoto Kubota , Kenichi Akashi
发明人: Tatsuo Furuta , Hiroshi Saito , Makoto Kubota , Kenichi Akashi
IPC分类号: H01L41/09 , H02N2/10 , C04B35/468 , H01L41/187 , H01L41/253 , H02N2/14 , H02N2/16 , C04B35/49 , C04B35/495 , C04B35/626 , C04B35/634 , H01L41/047 , H01L41/18 , H01L41/29 , B82Y30/00 , G02B7/08
CPC分类号: H01L41/312 , B82Y30/00 , C04B35/4682 , C04B35/49 , C04B35/495 , C04B35/6261 , C04B35/62685 , C04B35/63416 , C04B2235/3201 , C04B2235/3208 , C04B2235/3215 , C04B2235/3232 , C04B2235/3236 , C04B2235/3244 , C04B2235/3248 , C04B2235/3251 , C04B2235/3262 , C04B2235/3298 , C04B2235/442 , C04B2235/449 , C04B2235/5445 , C04B2235/5454 , C04B2235/656 , C04B2235/6562 , C04B2235/6567 , C04B2235/768 , G02B7/08 , H01L41/047 , H01L41/18 , H01L41/1871 , H01L41/1873 , H01L41/253 , H01L41/257 , H01L41/29 , H02N2/103 , H02N2/142 , H02N2/163 , Y10T29/42
摘要: A piezoelectric element that can decrease the output voltage for detection relative to the input voltage for driving without requiring a step-down circuit between a detection phase electrode and a phase comparator and an oscillatory wave motor including the piezoelectric element are provided. A piezoelectric element includes a piezoelectric material having a first surface and a second surface, a common electrode disposed on the first surface, and a drive phase electrode and a detection phase electrode disposed on the second surface. An absolute value d(1) of a piezoelectric constant of the piezoelectric material in a portion (1) sandwiched between the drive phase electrode and the common electrode and an absolute value d(2) of a piezoelectric constant of the piezoelectric material in a portion (2) sandwiched between the detection phase electrode and the common electrode satisfy d(2)
摘要翻译: 提供一种压电元件,其能够相对于用于驱动的输入电压而降低用于检测的输出电压,而不需要检测相位电极和相位比较器之间的降压电路以及包括压电元件的振荡波马达。 压电元件包括具有第一表面和第二表面的压电材料,设置在第一表面上的公共电极,以及布置在第二表面上的驱动相电极和检测相位电极。 夹在驱动相电极和公共电极之间的部分(1)中的压电材料的压电常数的绝对值d(1)和压电材料的压电常数的绝对值d(2) (2)夹在检测相电极和公共电极之间,满足d(2)
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