Y capacitor Of Switching power supply, charger knowledge
Y capacitor in switching power supply and charger mainly plays the role of power supply filtering and common mode filtering, eliminating interference signals and clutter in the circuit, making it work more stably, and improving the quality and safety of power supply and charger.
Common mode filtering Y capacitor is a safety capacitor, mainly used in power filter, playing a filtering role, and suppressing common mode interference. Y capacitor is used between live wire and ground wire, and between neutral wire and ground wire, and its appearance is blue or orange. Marked with safety certification mark and AC withstand voltage
Y capacitor capacity selection. Generally speaking, the larger the capacity, the better the filtering effect, but too large a capacity may cause leakage current to increase, affecting EMC.
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