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

IPC分类号： H02M3/158 ,  G05F1/613

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。

公开(公告)号：US5490052A

公开(公告)日：1996-02-06

申请号：US53525

申请日：1993-04-26

申请人： Koji Yoshida ,  Nobuyoshi Nagagata ,  Takuya Ishii

发明人： Koji Yoshida ,  Nobuyoshi Nagagata ,  Takuya Ishii

IPC分类号： H02M3/335 ,  H02M3/28

CPC分类号： H02M3/33569

摘要： A switching power supply supplies a regulated output voltage for an electronic apparatus in industrial or commercial use and suppresses generation of a spike voltage and a spike current due to a transformer, and a recovery voltage of a rectifying diode due to switching and it results in reduction of noise interference and power loss. A series connection of a first switching means and a second switching means repeating on/off action alternately is connected to a d-c source. A series connection of a first capacitor and a primary winding of a transformer is connected in parallel with the second switching means. An induced voltage in a secondary winding is supplied to an output through a rectifying/filtering means. A series resonance current in a closed circuit comprising the first capacitor and a leakage inductance suppresses spike voltage, spike current, and recovery voltage of the rectifying diode.

摘要翻译： 开关电源为工业或商业用电子设备提供调节的输出电压，并且抑制由于变压器而产生尖峰电压和尖峰电流，以及由于开关导致的整流二极管的恢复电压，并且导致减少 的噪声干扰和功率损耗。 交替地重复开/关动作的第一开关装置和第二开关装置的串联连接连接到d-c源。 变压器的第一电容器和初级绕组的串联连接与第二开关装置并联连接。 次级绕组中的感应电压通过整流/滤波装置提供给输出端。 包括第一电容器和漏电感的封闭电路中的串联谐振电流抑制了整流二极管的尖峰电压，尖峰电流和恢复电压。

公开(公告)号：US5383106A

公开(公告)日：1995-01-17

申请号：US1646

申请日：1993-01-07

申请人： Koji Yoshida ,  Nobuyoshi Nagagata ,  Takuya Ishii

发明人： Koji Yoshida ,  Nobuyoshi Nagagata ,  Takuya Ishii

IPC分类号： H02M3/28 ,  H02M3/335

CPC分类号： H02M3/33569 ,  Y02B70/1433

摘要： Disclosed is a switching power source device for supplying a DC stabilized voltage to industrial or household electronic appliances. The power source device can restrict a change in the switching frequency due to the change in load so that low noise and high efficiency can be realized. The power source device includes a first rectifying and smoothing circuit and a second rectifying and smoothing circuit. The first rectifying and smoothing circuit includes a rectifying diode and a smoothing capacitor. The second rectifying and smoothing circuit includes a rectifying diode and a smoothing capacitor. In a closed circuit composed of the first rectifying and smoothing circuit and second rectifying and smoothing circuit which are connected by a transformer, leakage inductance between the primary winding and secondary winding of the transformer is caused to resonate with the first or second rectifying and smoothing circuit so that a resonance current due to the resonance is taken as the current from the secondary winding to restrict occurrence of noise.

摘要翻译： 公开了一种用于向工业或家用电子设备提供DC稳定电压的开关电源装置。 电源装置可以限制由于负载变化引起的开关频率的变化，从而可以实现低噪声和高效率。 电源装置包括第一整流和平滑电路和第二整流和平滑电路。 第一整流平滑电路包括整流二极管和平滑电容器。 第二整流和平滑电路包括整流二极管和平滑电容器。 在由变压器连接的由第一整流平滑电路和第二整流电路组成的闭路中，使变压器的初级绕组和次级绕组之间的漏电感与第一或第二整流平滑电路 使得由于谐振引起的谐振电流被用作来自次级绕组的电流以限制噪声的发生。

公开(公告)号：US5448465A

公开(公告)日：1995-09-05

申请号：US111729

申请日：1993-08-25

申请人： Koji Yoshida ,  Nobuyoshi Nagagata ,  Takuya Ishii

发明人： Koji Yoshida ,  Nobuyoshi Nagagata ,  Takuya Ishii

IPC分类号： H02M3/335

CPC分类号： H02M3/33569 ,  H02M2001/009

摘要： A switching power supply supplies a regulated output voltage and suppresses spike voltage and spike current generated by a switching action of transformers, and suppresses switching frequency drift due to load variation. Output stability of multi-output design is improved and recovery of rectifying diodes by a current resonance are suppressed. A reduction of noise interference to electronic equipments and power loss in the switching power supply itself results. A series connection of a primary winding of a first transformer and a first switching means, which repeats an on/off action is connected across a d-c power source. A series connection of a second switching means, which repeats an on/off action alternately with the first switching means, and a first capacitor is connected in parallel with the primary winding of the first transformer. A series connection of a primary winding of the second transformer and a second capacitor is connected in parallel with the second switching means. Regulated d-c outputs are taken out from each secondary winding of the transformers through rectifiers/filters. A control circuit supplies on/off signals, which on/off-ratios are varied according to one of the regulated d-c outputs, to the first and the second switching means.

摘要翻译： 开关电源提供稳定的输出电压，并抑制由变压器的开关动作产生的尖峰电压和尖峰电流，并抑制由于负载变化引起的开关频率漂移。 多输出设计的输出稳定性得到改善，并且抑制了通过电流谐振的整流二极管的恢复。 降低对电子设备的噪声干扰和开关电源本身的功率损耗。 第一变压器的初级绕组和重复开/关动作的第一开关装置的串联连接跨d-c电源连接。 与第一开关装置交替地重复开/关动作的第二开关装置和第一电容器的串联连接与第一变压器的初级绕组并联连接。 第二变压器的初级绕组和第二电容器的串联连接与第二开关装置并联连接。 通过整流器/滤波器从变压器的每个次级绕组中取出调节的d-c输出。 控制电路将开/关信号根据调节的d-c输出之一提供，该开/关信号变化到第一和第二开关装置。

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

IPC分类号： G05F1/00 ,  G05F1/29

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。

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

IPC分类号： G05F1/618 ,  G05F1/575

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。

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

IPC分类号： G05F1/10 ,  H02M7/00 ,  H02H3/18

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。

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。

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。

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

IPC分类号： H02M3/155 ,  G05F1/40 ,  H02M3/156

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。