公开(公告)号：US5862044A

公开(公告)日：1999-01-19

申请号：US969335

申请日：1997-11-28

申请人： Masaki Shioya ,  Hideaki Matsumura ,  Takumi Ooe

发明人： Masaki Shioya ,  Hideaki Matsumura ,  Takumi Ooe

IPC分类号： H02M1/00 ,  H02M3/335 ,  H02M7/122

CPC分类号： H02M3/33523 ,  H02M1/32 ,  H02M2001/0006

摘要： A switching power supply apparatus wherein a main converter turns "on" and "off" a DC current applied to a primary winding of a main transformer using a main switching element and outputs a main output voltage to the secondary side after rectifying and smoothing current induced in a secondary winding; an error amplifier generates an error voltage between the main output voltage and a first reference voltage; a PWM control circuit outputs an on-off control signal for the main switching element so that the error voltage is minimized; a photo coupler receives the error voltage and provides an output to the PWM control circuit; an over-voltage protection circuit generates an over-voltage protection signal when the main output voltage exceeds a second reference voltage; an on-off circuit outputs either a high level potential or a common level potential depending on whether the power is to be turned "on" or "off"; a shut down latch circuit outputs a shut down signal when the over-voltage protection signal represents an over-voltage state; and a shut down implementation circuit holds the input voltage to the photo-coupler at a value which suppresses input to the photo-coupler when a signal from the on-off circuit specifies power off or when the shut down signal from the shut down latch circuit is effective; whereby only a single isolator is required in the apparatus.

摘要翻译： 一种开关电源装置，其中主转换器使用主开关元件将施加到主变压器的初级绕组的DC电流“on”和“off”，并且在整流和平滑电流感应之后将主输出电压输出到次级侧 在次级绕组中; 误差放大器在主输出电压和第一参考电压之间产生误差电压; PWM控制电路输出用于主开关元件的通断控制信号，使得误差电压最小化; 光耦合器接收误差电压并向PWM控制电路提供输出; 当主输出电压超过第二参考电压时，过电压保护电路产生过电压保护信号; 开关电路根据电源是否被“接通”还是“关闭”而输出高电平电位或公共电平电位; 当过电压保护信号表示过电压状态时，关闭锁存电路输出关闭信号; 并且关闭实施电路将来自光电耦合器的输入电压保持为当来自开 - 关电路的信号指定电源关闭时或当来自关闭锁存电路的关闭信号时抑制对光电耦合器的输入的值 是有效的; 从而在设备中仅需要一个隔离器。

公开(公告)号：US6023178A

公开(公告)日：2000-02-08

申请号：US50583

申请日：1998-03-30

申请人： Masaki Shioya ,  Hideaki Matsumura ,  Takumi Ooe ,  Iwao Nakanishi ,  Masuo Hanawaka

发明人： Masaki Shioya ,  Hideaki Matsumura ,  Takumi Ooe ,  Iwao Nakanishi ,  Masuo Hanawaka

IPC分类号： H02M3/335 ,  H03K3/017

CPC分类号： H02M3/33523

摘要： A pulse width control IC circuit that greatly reduces price, increases packaging density,and improves reliability for switching power supply units, wherein the IC circuit is on a single chip and includes a main converter control section that controls the ON and OFF actions of a main switch outside the IC, an output MOSFET, and an auxiliary converter control section that controls the ON and OFF actions of the output MOSFET.

摘要翻译： 一种脉冲宽度控制IC电路，其大大降低了价格，提高了封装密度，并提高了开关电源单元的可靠性，其中IC电路在单个芯片上，并且包括主转换器控制部分，其控制主电源的ON和OFF动作 在IC外部切换，输出MOSFET和辅助转换器控制部分，用于控制输出MOSFET的ON和OFF动作。

公开(公告)号：US6088244A

公开(公告)日：2000-07-11

申请号：US437514

申请日：1999-11-10

申请人： Masaki Shioya ,  Hideaki Matsumura ,  Takumi Oe ,  Iwao Nakanishi

发明人： Masaki Shioya ,  Hideaki Matsumura ,  Takumi Oe ,  Iwao Nakanishi

IPC分类号： H02H3/20 ,  H02M1/32 ,  H02M3/28 ,  H02M3/335

CPC分类号： H02M1/32 ,  H02M3/33523 ,  H02M1/36 ,  H02M2001/0006 ,  Y10S323/902

摘要： A switching power supply comprising a main converter that turns ON and OFF a DC current applied to a primary winding of a main transformer by a main switching element and outputs a main output voltage to a secondary circuit by rectifying and smoothing current induced in a secondary winding; an error amplifier generating an error voltage between the main output voltage and a first reference voltage; an over-voltage protection circuit that generates an over-voltage protection signal when the main output voltage exceeds a second reference voltage; a PWM circuit to control a drive signal for the main switching element to minimize error voltage outputted by the error amplifier; and a shut-down execution circuit that stops the main converter operation when the over-voltage protection signal is generated; wherein are provided a device to superimpose the over-voltage protection signal on the error signal of the main output voltage induced in the secondary winding and to transmit the superimposed signal to the primary circuit after isolating the superimposed signal with a photo-coupler; and a primary control circuit that detects an error signal transmitted via the photo-coupler by dividing the error signal into three levels of stop range, normal operation range, and abnormal operation range, and rapidly stop operation of the main converter when the error signal value is deflected to the stop range or the abnormal operation range due to failure of the photo-coupler, thereby resulting in improved reliability of the switching power supply.

摘要翻译： 一种开关电源，包括主转换器，其通过主开关元件接通和断开施加到主变压器的初级绕组的DC电流，并且通过对次级绕组中感应的电流进行整流和平滑化而将主输出电压输出到次级电路 ; 误差放大器，产生主输出电压和第一参考电压之间的误差电压; 当主输出电压超过第二参考电压时产生过电压保护信号的过电压保护电路; PWM电路，用于控制主开关元件的驱动信号，以最小化由误差放大器输出的误差电压; 以及关闭执行电路，其在产生过电压保护信号时停止主转换器动作; 其中提供了一种用于将过电压保护信号叠加在次级绕组中感应的主输出电压的误差信号上的装置，并且在用光耦合器隔离叠加信号之后将叠加的信号发送到初级电路; 以及初级控制电路，其通过将误差信号除以三级停止范围，正常工作范围和异常运行范围来检测通过光电耦合器发送的误差信号，并且当误差信号值 由于光耦合器的故障而偏转到停止范围或异常操作范围，从而提高了开关电源的可靠性。

公开(公告)号：US5065301A

公开(公告)日：1991-11-12

申请号：US548010

申请日：1990-07-05

申请人： Masaki Shioya ,  Masuo Hanawaka

发明人： Masaki Shioya ,  Masuo Hanawaka

IPC分类号： H02M3/337

CPC分类号： H02M3/3376

摘要： A switching power supply for controlling an output voltage to a constant value with respect to fluctuations in input or in load, wherein are provided a DC power supply; two dividing capacitors connected in series to both ends of the DC power supply; two semiconductor switches connected in series to both ends of the DC power supply; a transformer having a primary winding, one end of which is connected to a connecting point of the two dividing capacitors; and a T type circuit comprising two inductors connected in series between the connecting point of the two semiconductor switches and the other end of the primary winding; and a capacitor connected between the connecting point of the two inductors and the other end of the primary winding. The control characteristics of the switching power supply are improved by reducing the dependency of the output voltage on fluctuations in the load.

公开(公告)号：US07280877B2

公开(公告)日：2007-10-09

申请号：US10822266

申请日：2004-04-08

申请人： Masaki Shioya ,  Noriyasu Sagara ,  Yuji Tsubota

发明人： Masaki Shioya ,  Noriyasu Sagara ,  Yuji Tsubota

IPC分类号： G05B11/01 ,  G05B15/00 ,  G06F9/44 ,  G06F9/45

CPC分类号： G05B23/0267 ,  G05B15/02

摘要： A facility control monitor method and a facility control monitor apparatus capable of visually tracing a control logic and easily finding a cause of an operation trouble caused by the control logic. The facility control monitor method monitors control performed by a control device included in a facility having a controllable device, the control device for controlling the controllable device, a setting device for transmitting a setting control value to the control device, and a sensor for transmitting an operation state measurement value of the controllable device to the control device. Processes of control performed by the control device are stored. When an arbitrary date and time is specified by a trace controller (35), predetermined control steps of the specified date and time and after are displayed in a flowchart on a control flow display unit.

摘要翻译： 能够可视地跟踪控制逻辑并容易地找到由控制逻辑引起的操作故障的原因的设备控制监视方法和设施控制监视装置。 设备控制监视方法监视由具有可控设备的设备中包括的控制设备执行的控制，用于控制可控设备的控制设备，用于向控制设备发送设置控制值的设置设备，以及用于发送控制设备的传感器 控制装置的运行状态测量值。 存储由控制装置进行的控制的处理。 当由跟踪控制器（35）指定任意的日期和时间时，在控制流程显示单元上的流程图​​中显示指定的日期和时间以及之后的预定控制步骤。