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    • 61. 发明授权
    • Power supply for electrophotography apparatus
    • 电子照相设备电源
    • US5144364A
    • 1992-09-01
    • US669384
    • 1991-03-14
    • Toshiyuki Ichikawa
    • Toshiyuki Ichikawa
    • G03G15/00G05F1/577G06K15/12
    • G03G15/80G05F1/577G06K15/12
    • A power supply device includes a first output circuit for outputting a power supply voltage of a first potential, a second output circuit for outputting a power supply voltage of a second potential, a circuit for connecting the first and second output circuits, a circuit for applying a predetermined central potential to the connecting circuit, a circuit for generating a reference potential having a predetermined potential difference from the central potential, a circuit for generating a first detection potential corresponding to the first potential, a circuit for generating a second detection potential corresponding to both the first potential and the second potential, a circuit for controlling the first output circuit to minimize a potential difference between the first detection potential and the reference potential, a circuit for controlling the second output circuit to minimize a potential difference between the second detection potential and the central potential, and a circuit for forcibly changing at least one of the first detection potential and the reference potential using a predetermined control signal, so that both the first potential and the second potential change toward the central potential.
    • 64. 发明授权
    • Multiple voltage regulator integrated circuit having control circuits
for selectively disabling a voltage regulator in an over-current
condition
    • 具有控制电路的多电压调节器集成电路,用于在过电流状态下选择性地禁用稳压器
    • US4675770A
    • 1987-06-23
    • US696306
    • 1985-01-30
    • Jan H. Johansson
    • Jan H. Johansson
    • G05F1/573G05F1/577H02H5/04
    • G05F1/577G05F1/573
    • A quadruple voltage regulator has four independently controllable power circuits in a single integrated circuit, and includes a current sensor for each of the power circuits. Each current sensor generates an active output signal when the magnitude of the current produced by the corresponding voltage regulator exceeds a selected limit. A single temperature sensing device monitors the temperature of the integrated circuit and generates a control signal when the temperature exceeds a selected threshold temperature magnitude. The output of the each current sensor is independently combined with the control signal from the temperature sensor to disable the corresponding voltage regulator circuit when the temperature exceeds the threshold magnitude coincident with an excess current produced by the regulator.
    • 一个四电压调节器在单个集成电路中具有四个可独立控制的电源电路,并且包括用于每个电源电路的电流传感器。 当由相应的电压调节器产生的电流的大小超过所选极限时,每个电流传感器产生有效的输出信号。 单个温度感测装置监测集成电路的温度,并且当温度超过所选阈值温度幅度时产生控制信号。 每个电流传感器的输出与来自温度传感器的控制信号独立地组合,以在温度超过与调节器产生的过电流一致的阈值幅值时禁用相应的稳压器电路。
    • 67. 发明授权
    • Data processing system power control
    • 数据处理系统电源控制
    • US4204249A
    • 1980-05-20
    • US810560
    • 1977-06-27
    • Malcolm DyeRichard C. J. Hyde
    • Malcolm DyeRichard C. J. Hyde
    • G06F1/26G05F1/577G06F1/28G06F11/00
    • G06F1/28G05F1/577Y10T307/615
    • The data processing system consists of a plurality of interconnected data processing subsystems one of which is a service subsystem devoted to servicing the remainder of the system and provides communication between the operator and the system to facilitate maintenance. A plurality of power supply units provide electrical power for the system, together with power supply means dedicated to the service subsystem to start up.The service subsystem includes a power adapter unit with measuring and logic circuits which cooperate with a power control microprogram to control and monitor the plurality of power supply units. The power adapter unit collects analog and digital data from the plurality of power supply units and distributes digital data to the plurality of power supply units in a multiplex mode as directed by the power control microprogram.The basic functions provided are sequencing turn-on and turn-off of the plurality of power supplies, monitoring voltage, temperatures, and air flows of the system and checking the correct operation of the plurality of power supply units.
    • 数据处理系统由多个相互连接的数据处理子系统组成,其中之一是致力于维护系统的其余部分的服务子系统,并提供操作员与系统之间的通信以便于维护。 多个电源单元为系统提供电力,以及专用于服务子系统的电源装置启动。 服务子系统包括具有测量和逻辑电路的电源适配器单元,其与功率控制微程序协作以控制和监视多个电源单元。 电源适配器单元从多个电源单元收集模拟和数字数据,并按照功率控制微程序的指示以多路复用模式将数字数据分配给多个电源单元。 提供的基本功能是多个电源的顺序打开和关闭,监视系统的电压,温度和空气流量,并检查多个电源单元的正确操作。
    • 69. 发明授权
    • Compromise voltage control for tracking multiple output power supply
    • 用于跟踪多个输出电源的电压控制
    • US3815014A
    • 1974-06-04
    • US37212873
    • 1973-06-21
    • IBM
    • DAVIS JDOBSON D
    • G05F1/00G05F1/10G05F1/577H02M3/335G05F1/46
    • H02M3/33561G05F1/577Y10T307/422
    • A feedback control system is utilized to control the output voltage levels of a power supply having multiple output voltage signals which relatively track one another. This feedback control system encloses each output voltage signal within the feedback loop and allows independent definition of the tolerance of each voltage signal. Each output voltage signal is normalized and a percent error signal is obtained for each normalized voltage signal by comparison to a common voltage reference. The percent error signals are then weighted by factors which are inversely proportional to the defined tolerances for their associated voltage signals. An error control system is then responsive to the weighted percent error signals to control the output voltage levels of the power supply. In a first embodiment, the control system includes a summing network which provides a feedback correction signal to the power supply when the sum of the weighted percent error signals does not equal zero. In a second embodiment, the control system includes a switching network which provides a feedback correction signal to the power supply when the magnitude of the most negative weighted percent error signal does not equal that of the most positive weighted percent error signal.
    • 利用反馈控制系统来控制具有相对彼此跟踪的多个输出电压信号的电源的输出电压电平。 该反馈控制系统将每个输出电压信号包含在反馈回路内,并允许对每个电压信号的公差的独立定义。 每个输出电压信号被归一化,并且通过与公共参考电压相比较,为每个归一化电压信号获得百分比误差信号。 误差信号百分数然后由与相关电压信号的限定公差成反比的因子加权。 然后,误差控制系统响应加权百分比误差信号来控制电源的输出电压电平。 在第一实施例中,控制系统包括一个求和网络,当加权百分比误差信号之和不等于零时,它向电源提供反馈校正信号。 在第二实施例中,控制系统包括交换网络,当最负负百分比误差信号的幅度不等于最正负加权误差信号的幅度时,向电源提供反馈校正信号。
    • 70. 发明授权
    • Powerplexer
    • POWERPLEXER
    • US3755686A
    • 1973-08-28
    • US3755686D
    • 1972-05-31
    • NASA
    • WOODS J
    • G05F1/577H02M1/10H02J1/06
    • H02M1/10G05F1/577Y10T307/305Y10T307/383Y10T307/391Y10T307/461
    • For use in the distribution of DC power levels to loads which require different voltages, a circuit which is supplied with DC voltage levels and commutates pulses for timed intervals onto a pair of distribution wires. The circuit is driven by a command generator which places pulses on the wires in a timed sequence. The pair of wires extend to voltage strippers connected to the various loads. The voltage strippers each respond to the pulse DC levels on the pair of wires and form different output voltages communicated to each load.
    • 用于将DC功率电平分配给需要不同电压的负载,一个电路被提供有直流电压电平,并将定时间隔的脉冲换向一对配线。 电路由命令发生器驱动,该指令发生器以定时顺序将脉冲放置在导线上。 一对电线延伸到连接到各种负载的电压剥离器。 电压剥离器各自响应一对导线上的脉冲直流电平,并形成传递到每个负载的不同输出电压。