Input waveform follow-up AC power source system
    2.
    发明授权
    Input waveform follow-up AC power source system 失效
    输入波形跟踪交流电源系统

    公开(公告)号:US5635826A

    公开(公告)日:1997-06-03

    申请号:US544522

    申请日:1995-10-18

    申请人: Isao Sugawara

    发明人: Isao Sugawara

    CPC分类号: G05F1/20 H02M5/293

    摘要: An input waveform follow-up AC power source system is shown, which can obtain a desired sinusoidal voltage or current wave continuously and with the same or a similar waveform from a constant power source, as well as being small in size and light in weight.The AC power source system, which provides a desired AC voltage or current from an AC power source, comprises a first AC switch provided between the input side and the output side and on-off operated in a predetermined cycle, and a second AC switch provided on the output side of the first AC switch and at a position to short-circuit the output side and on-off operated conversely to the first AC switch. A predetermined pause time is provided between the operations of the first and second AC switches. Each AC switch has two semiconductor elements, and diodes each connected between controlled terminals of and in opposite conduction polarity to each semiconductor element, like polarity controlled terminals of the two semiconductor elements being connected to each other, the same control signal being supplied to a control input terminal of each semiconductor element for on-off switching AC between the other controlled terminals of the semiconductor elements.

    摘要翻译: 示出了输入波形跟随AC电源系统,其可以连续地获得期望的正弦电压或电流波形,并且具有来自恒定电源的相同或相似的波形,以及尺寸小和重量轻。 AC电源系统从交流电源提供期望的交流电压或电流,包括设置在输入侧和输出侧之间的第一AC开关以及以预定周期运行的开关,以及提供的第二AC开关 在第一AC开关的输出侧和在使第一AC开关相反地操作输出侧短路和断开的位置。 在第一和第二AC开关的操作之间提供预定的暂停时间。 每个AC开关具有两个半导体元件,并且二极管分别连接到每个半导体元件的受控端子和与其相反的导通极性,如同两个半导体元件的极性控制端子彼此连接的,将相同的控制信号提供给控制器 每个半导体元件的输入端子用于在半导体元件的其它受控端子之间开关交流AC。

    Ice making equipment
    3.
    发明授权
    Ice making equipment 失效
    制冰设备

    公开(公告)号:US4217762A

    公开(公告)日:1980-08-19

    申请号:US5971

    申请日:1979-01-24

    IPC分类号: F25C1/20 F25C1/04 F25C1/18

    摘要: The steps of handling ice cans in an ice making plant, such as placing the ice cans in alignment within one or more ice tanks, transferring ice cans each containing formed ice block to a stripping-off area, and placing and separating of the cover lid relative to ice can units, are automatically performed by an overhead travelling crane.Particularly, several ice can units are placed in the ice tank such that pairs of lugs provided on each ice can unit are arrayed in two straight lines to enable the overhead crane to selectively lift the ice cans.In order to produce high-quality ice blocks which are completely transparent through to the core portion thereof, each ice can is correlated with means for agitating ice making water contained therein and is connected with a piping for exchanging core water, in which impurities or foreign particles are likely to gather, with fresh water.The stripping-off of the ice blocks from the ice cans is also performed by an automatic system.

    摘要翻译: 在制冰设备中处理冰罐的步骤,例如将冰罐放置在一个或多个冰箱内对准,将含有形成的冰块的冰罐转移到剥离区域,以及放置和分离盖盖 相对于冰罐单元,由桥式起重机自动执行。 特别地,几个冰罐单元被放置在冰箱中,使得设置在每个冰罐单元上的成对的凸耳以两条直线排列,以使架空起重机能够选择性地提升冰罐。 为了生产通过其核心部分完全透明的高品质冰块,每个冰罐与用于搅拌其中所含的制冰水的装置相关联,并与用于交换核水的管道连接,其中杂质或异物 颗粒很可能会用淡水聚集。 冰块从冰罐的剥离也通过自动系统进行。

    AC voltage regulator
    4.
    发明授权
    AC voltage regulator 失效
    交流电压调节器

    公开(公告)号:US06236192B1

    公开(公告)日:2001-05-22

    申请号:US09589361

    申请日:2000-06-08

    IPC分类号: G05F110

    CPC分类号: H02M5/225

    摘要: An AC voltage regulator, which not only has a fast response speed with respect to input voltage fluctuations but also is small in size and light in weight and is capable to boost an input voltage, comprises a high-frequency transformer 4, a first bi-directional semiconductor switch circuit 3, a second bi-directional semiconductor switch circuit 5 and a third bi-directional semiconductor switch circuit 6; an input AC voltage is ring-modulated by the first bi-directional semiconductor switch circuit 3 and the obtained ring-modulated voltage is transformed at a high frequency by the high-frequency transformer 4 and then demodulated by the second bi-directional semiconductor switch circuit 5, and the obtained AC demodulated voltage is added to the input AC voltage to produce an AC raised voltage, and the AC raised voltage is pulse width modulated by the third bi-directional semiconductor switch circuit 6, which is controlled to become ON only while the second bi-directional semiconductor switch circuit 5 is OFF, and the AC raised voltage is continuously regulated by continuous regulation of a duty ratio D of the second bi-directional semiconductor switch circuit 6 in the pulse width modulation.

    摘要翻译: 一种交流电压调节器,其不仅具有相对于输入电压波动的快速响应速度,而且尺寸小,重量轻,并且能够提高输入电压,包括高频变压器4, 定向半导体开关电路3,第二双向半导体开关电路5和第三双向半导体开关电路6; 输入交流电压由第一双向半导体开关电路3进行环形调制,并且所获得的环形调制电压被高频变压器4以高频率变换,然后由第二双向半导体开关电路 如图5所示,将得到的AC解调电压加到输入交流电压上,产生交流升压,交流升压由第三双向半导体开关电路6进行脉冲宽度调制,第三双向半导体开关电路6被控制为接通, 第二双向半导体开关电路5为OFF,并且通过在脉冲宽度调制中连续调节第二双向半导体开关电路6的占空比D来连续调节AC升压。

    Uninterruptible power supply method
    5.
    发明授权
    Uninterruptible power supply method 失效
    不间断电源方式

    公开(公告)号:US5856712A

    公开(公告)日:1999-01-05

    申请号:US838052

    申请日:1997-04-22

    摘要: A method for providing an uninterruptible power supply to a load both at ordinary times and in an emergency. At ordinary times, commercial AC input power is modulated into high-frequency AC power, which is then applied to a primary winding of a high-frequency transformer having the primary winding, a secondary winding and a tertiary winding. High-frequency AC power induced in the secondary winding from the primary winding is demodulated into AC output power, which is then supplied to the load. High-frequency AC power induced in the tertiary winding from the primary winding is rectified into DC power, with which a storage battery is charged. In an emergency, DC power from the storage battery is converted into high-frequency AC power, which is then applied to the tertiary winding. High-frequency AC power induced in the secondary winding from the tertiary winding is averaged, thereby producing AC output power, then the AC output power is supplied to the load.

    摘要翻译: 一种在正常时间和紧急情况下向负载提供不间断电源的方法。 通常,商用交流输入功率被调制成高频交流电源,然后将其施加到具有初级绕组,次级绕组和三次绕组的高频变压器的初级绕组。 在初级绕组的次级绕组中感应出的高频交流电被解调成交流输出功率,然后提供给负载。 在初级绕组的三次绕组中感应的高频交流电被整流为直流电,蓄电池通过该电力充电。 在紧急情况下,来自蓄电池的直流电力被转换为高频交流电源,然后将其施加到第三绕组。 对从三次绕组的次级绕组感应的高频交流电力进行平均化,从而产生交流输出功率,然后将交流输出功率提供给负载。

    AC-AC/DC converter
    6.
    发明授权
    AC-AC/DC converter 失效
    AC-AC / DC转换器

    公开(公告)号:US6067243A

    公开(公告)日:2000-05-23

    申请号:US194916

    申请日:1999-03-18

    IPC分类号: H02M5/22 H02M7/217 H02M7/5387

    CPC分类号: H02M7/2173 H02M5/225

    摘要: An AC-AC/DC converter for converting an AC input or an AC input voltage-divided by a capacitor into a high frequency AC. The converter includes a modulator for turning bi-directional AC switches on and off to convert the AC input or the AC input voltage-divided by the capacitor into a high frequency AC; a high frequency transformer for varying a voltage ratio of the high frequency AC; bi-directional AC switches for demodulating an output from the high frequency transformer into an AC output or rectifying the output into a DC output; a high frequency filter for removing high frequency components from the AC or DC output; and a control unit for controlling the AC switches using a pulse width or pulse phase modulation technique. Through the bi-directional AC switches, the converter can sequentially control an AC or DC input such that the AC or DC output has a value in a range from a maximum value of the positive phase or polarity, passing through zero, to the maximum value of the negative phase or polarity.

    摘要翻译: PCT No.PCT / JP96 / 01538 Sec。 371 1999年3月18日 102(e)1999年3月18日PCT PCT 1996年6月6日PCT公布。 公开号WO97 / 47070 日期1997年12月11日用于将由电容器分压的AC输入或AC输入转换成高频AC的AC-AC / DC转换器。 该转换器包括用于开启和关闭双向交流开关的调制器,以将由电容器分压的交流输入或交流输入转换为高频交流; 用于改变高频AC的电压比的高频变压器; 用于将高频变压器的输出解调为AC输出或将输出整流为DC输出的双向交流开关; 用于从AC或DC输出去除高频分量的高频滤波器; 以及控制单元,用于使用脉冲宽度或脉冲相位调制技术来控制AC开关。 通过双向AC开关,转换器可以顺序地控制AC或DC输入,使得AC或DC输出具有从正相或极性的最大值(通过零)到最大值的范围内的值 的负相或极性。

    Electric power source device
    7.
    发明授权
    Electric power source device 失效
    电源装置

    公开(公告)号:US4390939A

    公开(公告)日:1983-06-28

    申请号:US281085

    申请日:1981-07-07

    申请人: Isao Sugawara

    发明人: Isao Sugawara

    摘要: An electric power source device for electrolytical production or coloring of alumilite, wherein pulses are generated at a predetermined phase of A.C. source, the pulses are frequency-divided by a non-contact circuit and, depending on the results of the frequency division, analogue switches respectively comprising a non-contact circuit are driven to actuate rectifier units for rectifying the A.C. source. Outputs of alternately reversed polarities with distinctly sharp rising and falling are provided.

    摘要翻译: 一种用于电解生产或铝氧化物着色的电源装置,其中在AC源的预定相位处产生脉冲,所述脉冲被非接触电路分频,并且根据分频的结果,模拟开关 分别包括非接触电路以驱动用于整流AC电源的整流器单元。 提供具有明显急剧上升和下降的交替反向极性的输出。