Home appliance fault monitoring equipment

Abstract

The invention discloses a household appliance fault monitoring device, which includes a frequency acquisition circuit, a separation calibration circuit and a signal output circuit. Use variable resistor RW1, variable resistor RW2, capacitor C4, and capacitor C3 to form a separation circuit to divide the signal into two signals with the same frequency and different amplitude, and use transistor Q1 and transistor Q2 to form a push-pull circuit to reduce the conduction loss of the signal. The second circuit uses variable resistor RW3, diode D4, and diode D5 to form a rectification circuit to rectify the signal, and the final signal output circuit uses triode Q5, triode Q6, resistor R14, and resistor R15 to form a composite circuit to prevent signal distortion. The trigger signal of the alarm module in the electrical fault monitoring equipment control terminal.

Description

Technical field [0001] The present invention relates to the field of circuit technology, and more particularly to household appliance fault monitoring equipment. Background technique [0002] At present, with the continuous development of science and technology, more and more household appliances have greatly improved our lives, bringing great convenience to people, especially today's information age, making people's living standards Further improvement, however, the US-in-US-in-American appliance fault monitoring does have a big problem, because now is now a lot of household appliances, it does not guarantee that each household appliance works in real time, so individual household appliances need to work, but find a failure , Seriously affect the use of household appliances, requires real-time monitoring of household appliances, and can trigger a alarm module working in the alarm module in the home appliance fault monitoring equipment. Inventive content [0003] In order to ove...

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Problems solved by technology

[0002] At present, with the continuous development of science and technology, there are more and more household appliances, which have greatly improved our lives and brought great convenience to people's lives, especially the advent of the information age, making people's living standards Further improvement, however, the fly in the ointment is that the fault monitoring of household appliances is indeed a big problem. Since there are so many household appliances, it is not guaranteed that every household appliance can work in real time. Therefore, when individual household appliances need to work, they are found to be faulty. , which seriously affects the use of household appliances, it is necessary to monitor the working status of household appliances in real time, and to trigger the alarm module in the household appliance fault monitoring equipment to work in time.

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