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1. 发明授权

US4063148A First house protector for voltage regulators and the like 失效
标题翻译：电压调节器等的第一房屋保护装置
公开(公告)号：US4063148A
公开(公告)日：1977-12-13
申请号：US701521
申请日：1976-07-01
申请人： Hans R. Fehlmann , Richard D. Blackburn
发明人： Hans R. Fehlmann , Richard D. Blackburn
IPC分类号： G05F1/153 , G05F1/64
CPC分类号： G05F1/153
摘要： A control circuit for limiting the output voltage of a voltage regulator or the like to a safe level for consumers connected close to the voltage regulator. The output voltage of the regulator is measured and compared to a reference. If the voltage exceeds the preset level then the circuit is energized to prevent further tap change that would increase the voltage output. A time delay is provided to prevent immediate de-energization of the circuit when the voltage drops below the preset level. Should line fluctuations cause further voltage increase, then the circuit will cause a tap change so as to reduce the output voltage. If the output voltage drops below a preset level then the circuit will prevent further tap changing which would cause any further lowering of the output voltage.
摘要翻译：一种用于将电压调节器等的输出电压限制在靠近电压调节器的消费者的安全水平的控制电路。测量调节器的输出电压并将其与参考值进行比较。如果电压超过预设电平，则电路通电，以防止进一步的分接头更换，从而增加电压输出。提供时间延迟以防止当电压下降到预设电平以下时立即断开电路。如果线路波动引起电压进一步升高，那么电路会引起抽头变换，从而降低输出电压。如果输出电压低于预设电平，则电路将阻止进一步的分接头更换，这将进一步降低输出电压。

2. 发明授权

US06221535B1 Photorefractive composite 失效
$Photorefractive composite$
标题翻译：光折变复合材料
公开(公告)号：US06221535B1
公开(公告)日：2001-04-24
申请号：US09180402
申请日：1999-01-11
申请人： Alan M. Cox , Richard D. Blackburn , Frances A. Wade , David P. West , Terence A. King , David Leigh
发明人： Alan M. Cox , Richard D. Blackburn , Frances A. Wade , David P. West , Terence A. King , David Leigh
IPC分类号： G03H104
CPC分类号： C09B43/28 , G03F7/001 , G11B7/244 , G11B7/2467
摘要： A photorefractive composite comprises a charge transport matrix and an electrooptic dye having an aliphatic group of four or more carbon atoms.
摘要翻译：光折变复合物包含电荷传输基质和具有四个或更多个碳原子的脂族基团的电光染料。

3. 发明授权

US4346341A Method and apparatus for automatic voltage reduction control 失效
标题翻译：自动降压控制方法及装置
公开(公告)号：US4346341A
公开(公告)日：1982-08-24
申请号：US239696
申请日：1981-03-02
申请人： Richard D. Blackburn , Donald A. Duclos
发明人： Richard D. Blackburn , Donald A. Duclos
IPC分类号： G05F1/153 , H02J3/12 , G05F1/14
CPC分类号： G05F1/153 , H02J3/12
摘要： Automatic voltage reduction is provided by a voltage regulator by monitoring utility load currents and comparing the load currents to a predetermined current value. When the predetermined current value is exceeded, the voltage input to the voltage regulator control is increased by a fixed predetermined amount causing the voltage regulator output to decrease. One embodiment of the automatic voltage reduction control circuit utilizes a current transformer for receiving a signal from a utility line in proportion to the amount of line load current. The current signal is compared to a predetermined current value by means of a differential amplifier to determine when the predetermined current is exceeded. The differential amplifier output then operates a relay to connect an auxiliary voltage source in series with the sensing transformer within the voltage regulator control unit.
摘要翻译：电压调节器通过监测公用事业负载电流并将负载电流与预定电流值进行比较来提供自动降压。当超过预定电流值时，输入到电压调节器控制的电压增加固定的预定量，导致电压调节器输出减小。自动降压控制电路的一个实施例利用电流互感器与电力线路负载电流量成比例地接收来自公用事业线路的信号。通过差分放大器将电流信号与预定电流值进行比较，以确定何时超过预定电流。然后，差分放大器输出操作继电器，以将电压调节器控制单元内的感测变压器与辅助电压源串联连接。

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