Automatic power supply ration controller
A controller and power limiting technology, which is applied in the direction of automatic disconnection emergency protection devices, electrical components, circuit devices, etc., can solve the problems of wire heating and fire, troublesome operation, and potential safety hazards, and achieve simple circuit structure and low cost , the effect of convenient operation
Inactive Publication Date: 2015-06-17
重庆市翼珑蝶科技有限公司
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Problems solved by technology
[0002] With the continuous improvement of people's living standards, various high-power household appliances have entered thousands of households, and their power consumption has increased rapidly, especially in summer, and the power consumption is even greater, and the current capacity that the power supply line can pass through is limited. , once the current is over-current, it is easy to cause the wire to heat up and catch fire, and there is a potential safety hazard; The switch needs to be manually reset, which is troublesome to operate
Method used
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[0011] The present invention will be further described below in conjunction with accompanying drawing.
[0012] like figure 1 , figure 2 The automatic power limiting controller shown includes a current sampling circuit, a control circuit, an execution alarm circuit and a power circuit that provides a DC power supply VCC.
[0013] Among them, the power supply circuit consists of the sixth resistor R6, the third capacitor C3, the second bridge rectifier VD2, the fourth capacitor C4, the eighth capacitor C8, the voltage regulator U2 of model 7805, the fifth capacitor C5, and the seventh capacitor C7 and the second diode D2; the sixth resistor R6 is connected in parallel with the third capacitor C3, the positive pole of the third capacitor C3 is connected to the live wire terminal L of 220V AC, the negative pole is connected to the input end of the second bridge rectifier VD2, and the second bridge rectifier The other end of the input of the rectifier VD2 is connected to the ne...
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The invention discloses an automatic power supply ration controller. The automatic power supply ration controller comprises a current sampling circuit, a control circuit, an alarm executing circuit and a power supply circuit used for providing direct-current power supply. According to the automatic power supply ration controller, the power supply return circuit can be cut automatically and sound-light alarm can be emitted when the power consumption is over-limit, the power supply can recover automatically when the power consumption lowered to a set value, the circuit structure is simple, and the cost is low; the automatic power supply ration controller can be applied to places such as dormitories for students, restaurants and hospital wards widely to limit the use of high-power electrical appliances.
Description
technical field [0001] The invention relates to an automatic power limiting controller. Background technique [0002] With the continuous improvement of people's living standards, various high-power household appliances have entered thousands of households, and their power consumption has increased rapidly, especially in summer, and the power consumption is even greater, and the current capacity that the power supply line can pass through is limited. , once the current is over-current, it is easy to cause the wire to heat up and catch fire, and there is a potential safety hazard; The switch needs to be manually reset, which is troublesome to operate. Contents of the invention [0003] The purpose of the present invention is to provide an automatic power limiting controller, which automatically cuts off the power supply circuit and sends out an alarm when the power consumption exceeds the limit, and automatically restores the power supply after the power consumption retu...
Claims
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Login to View More IPC IPC(8): H02H3/42H02H3/04H02H3/06
Inventor 蒋云霞
Owner 重庆市翼珑蝶科技有限公司