what is the role of Y capacitor in charger?

Charger manufacturer: what is the role of Y capacitor in charger?

Eahunt has industry-leading power supply technology, monthly production capacity of more than 3 million, is currently one of the major power supply manufacturers in China.Eahunt charger manufacturer produces power supply products such as small home appliance chargers, USB chargers,, balance car chargers, electric car chargers, with a variety of specifications, certified power supply, welcome to come to consult.

Charger when charging such as encountering poor quality charger will appear without reason spontaneous combustion, bursting cell phone, or even electrocution while charging, triggering personnel injury busy. This all stems from the quality of the electronic components in the charger. Charger y capacitor is used for common mode filtering, it is connected to the L in the ground or N in the ground between, filtering out the L to ground or N to ground common mode signal, y capacitor is usually symmetrical use, the role of the main bypass; decoupling; filtering; energy storage. y capacitor good or bad on the quality of the charger has a great impact.

In the primary end of the power into a voltage 400v capacitor, that is the main filter capacitor, filter out the utility rectifier after the stray wave, so that the back of the circuit can get a smoother DC sinusoidal wave, only less stray wave, the circuit can be better and stable, as for the capacitance selection of the 400v withstand voltage value, the switching circuit, the capacitance of both sides of the voltage drop of more than 300 volts, coupled with the power-on instantaneous voltage peaks, so if the withstand voltage value is Too small, will shadow up capacitance cracking, and the output capacitance depending on the size of its output voltage to choose the appropriate voltage withstand value, such as 5v, the voltage withstand value is 10v, the capacitance is also filtering, so that the charger outputs a smooth DC, as for the size of the capacity of the front of the withstand voltage of large capacitors are generally selected 47 ~ 470uF, output capacitance is generally 100 ~ 1,000uF, in principle, is the larger the better, but in fact, the larger the capacity, the larger the leakage current, the larger the capacity, the larger the current. The larger the capacity, the larger the leakage current, y capacitance through the AC block DC. So we should choose a good quality charger when charging the cell phone. The quality of y-capacitor is directly related to the quality of the charger.

As a cell phone charger in the y capacitor, quality assurance is very important, buy y capacitor when choosing must have a safety testing organization certification and the safety certification of the industrial countries, Eahunt charger manufacturer for 15 years adhere to the quality first policy, the charger material is to choose the best quality components, military quality, worthy of your trust.

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