Energy saving switch circuit with thyristor
An energy-saving switch and switching circuit technology, applied in the field of electrical appliances, can solve the problems of wasting electric energy and potential safety hazards, and achieve the effect of saving electric energy
Inactive Publication Date: 2015-12-30
SANJIANG UNIVERSITY
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Problems solved by technology
However, the existing switches generally have such a defect: when the power supply is restored after the power supply line is cut off, the electrical equipment will automatically start, which often wastes a lot of electric energy and also brings certain safety hazards.
Therefore, there is an urgent need to develop a switch—a switch that is closed again only when electricity is needed, so as to achieve energy saving and safety effects, but there is no such switch in the market at present.
Method used
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[0009] The principle diagram of an energy-saving switch circuit with a thyristor of the present invention is as follows figure 1 As shown, among them: A, B are the power supply input terminals connected; D 1 、D 2 、D 3 、D 4 It is a rectifier diode; terminals 1 and 3 of the full-wave rectifier bridge form the input terminals, and terminals 2 and 4 are output terminals.
[0010] An energy-saving switching circuit with thyristors, including a full-wave rectifier bridge, a common non-turn-off thyristor SCR⑤, a resistor R②, a polar capacitor C③, an automatic reset normally open button SW0④, an automatic reset normally closed button SW1①; two full-wave rectifier bridges An ordinary non-turn-off thyristor SCR is connected between the two output terminals; one input terminal of the full-wave rectifier bridge is connected to one terminal of the automatic reset normally closed button SW1, and the other terminal of the automatic reset normally closed button SW1 is used as the input ter...
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The present invention discloses an energy saving switch circuit. A general non-turn-off thyristor SCR is connected between the two output ends of a full wave rectifier bridge. One input end of the full wave rectifier bridge is connected to one terminal of an automatic reset normally closed key SW1, and the other terminal of the automatic reset normally closed key SW1 is used as the input terminal of the full wave rectifier bridge. The anode of the general non-turn-off thyristor SCR is connected to one end of a resistor R, the other end of the resistor R is connected to one terminal of an automatic reset normally opened key SW0, and the other end of the automatic reset normally opened key SW0 is connected to the gate of the general non-turn-off thyristor SCR. The positive electrode of a polarity capacitor C and the resistor R are connected in series, and the other end of the polarity capacitor C is connected to the cathode of the general non-turn-off thyristor SCR. According to the switch control circuit provided by the invention, electrical equipment does not start automatically when power supply is restored after the cut of a power supply line.
Description
technical field [0001] The invention relates to a switch control circuit in the electrical field. Background technique [0002] The power control switch is widely used in the field of daily life. Due to various reasons, power outages often occur. The easiest way is to close the power switch to restore the power supply. However, the existing switches generally have such a defect: when the power supply is restored after the power supply line is cut off, the electrical equipment will automatically start, which often wastes a lot of electric energy and also brings certain potential safety hazards. Therefore, there is an urgent need to develop a switch—a switch that is closed again only when electricity is needed, so as to achieve energy saving and safety effects, but such a switch has not yet appeared on the market. Contents of the invention [0003] The purpose of the present invention is to provide a switch control circuit capable of restoring power supply after the power s...
Claims
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Login to View More IPC IPC(8): H03K17/56
Inventor 于彩敏徐伟
Owner SANJIANG UNIVERSITY