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1. 发明授权

US4644458A Electric power supply circuit capable of reducing a loss of electric power 失效
标题翻译：能够减少电力损失的电力供应电路
公开(公告)号：US4644458A
公开(公告)日：1987-02-17
申请号：US712990
申请日：1985-03-18
申请人： Yoshihiko Harafuji , Hideki Yamamoto , Katsuhiko Yamamoto
发明人： Yoshihiko Harafuji , Hideki Yamamoto , Katsuhiko Yamamoto
IPC分类号： H04B3/44 , H02M3/28
CPC分类号： H04B3/44
摘要： In an electric power supply circuit comprising a plurality of constant current units each of which is controllable by a control voltage (V.sub.c) to keep a circuit output current (I.sub.OUT) substantially constant and which has no shunt resistor, the control voltage is supplied from a single current to voltage converter (44) operable in response to a control current (I.sub.c) corresponding to the circuit output current. A control unit (39) produces the control current in response to a detection signal supplied from a current detector (37) and representative of a result of detection of the circuit output current. A plurality of current detectors may be coupled to a plurality of control units coupled in common to the single current to voltage converter. The single current to voltage converter may be a saturable reactor, a resistor, or the like. Alternatively, each of the constant current units may comprise a shunt resistor when the shunt resistor is connected in series to a current restriction circuit coupled to an additional winding attached to the current detector.
摘要翻译：在包括多个恒定电流单元的电力供应电路中，每个恒定电流单元可由控制电压（Vc）控制，以保持电路输出电流（IOUT）基本恒定并且不具有分流电阻器，所述控制电压从单个电流 - 电压转换器（44）可响应于对应于电路输出电流的控制电流（Ic）而工作。控制单元（39）响应于从电流检测器（37）提供的检测信号产生控制电流，并且代表检测电路输出电流的结果。多个电流检测器可以耦合到共同耦合到单个电流 - 电压转换器的多个控制单元。单个电流 - 电压转换器可以是可饱和电抗器，电阻器等。或者，当分流电阻器串联连接到连接到连接到电流检测器的附加绕组的电流限制电路时，每个恒流单元可以包括分流电阻器。

2. 发明授权

US4728807A Power source system comprising a plurality of power sources having negative resistance characteristics 失效
标题翻译：电源系统包括具有负电阻特性的多个电源
公开(公告)号：US4728807A
公开(公告)日：1988-03-01
申请号：US761745
申请日：1985-08-01
申请人： Yoshihiko Harafuji , Hideki Yamamoto , Tsutomu Ogata
发明人： Yoshihiko Harafuji , Hideki Yamamoto , Tsutomu Ogata
IPC分类号： G05F1/59 , H02J9/06
CPC分类号： G05F1/59 , Y10T307/527 , Y10T307/549 , Y10T307/615
摘要： In a power source system for supplying a load with a load voltage and a load current, a plurality of power sources share the load at rates of load sharing and have negative resistance characteristics. When the power sources are connected together in series, the rates are determined by source voltages produced by the respective power sources which also produce d.c. currents. Each d.c. current increases with an increment of each rate so as to specify each negative resistance characteristic. A control circuit is included in each power source to control the d.c. current and may be a combination of a current detector (60a, 60b) and a resistor (56a, 56b). Alternatively, the rates are determined by source currents produced by the respective power sources which also produce d.c. voltages when the power sources are connected together in parallel. The d.c. voltages are controlled by control circuits to specify the negative resistance characteristics so that each d.c. voltage increases with an increment of each source current. Each negative resistance characteristic may be changed to a positive resistance characteristic at a preselected one of each rate.
摘要翻译：在用于向负载提供负载电压和负载电流的电源系统中，多个电源以负载共享的速率共享负载并具有负电阻特性。当电源串联连接在一起时，速率由相应电源产生的源电压决定，电源也产生直流。电流。每个直径电流以每个速率的增量增加，以指定每个负电阻特性。每个电源都包含一个控制电路，以控制直流电。并且可以是电流检测器（60a，60b）和电阻器（56a，56b）的组合。或者，速率由通过相应电源产生的源电流确定，该电源也产生直流。电源并联连接在一起时的电压。直径电压由控制电路控制，以指定负电阻特性，使得每个直流电压随每个电源电流的增加而增加。每个负电阻特性可以以每个速率的预选一个改变为正电阻特性。

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