source:Industry News Popular:adapter release time:2021-06-30 09:32:27 Article author:sznbone
Temperature Resistance of Power Adapter！Temperature Resistance and fireproof not only relates to the reliability and life span of power adapter, but also relates to the danger level and user’s life and property safe when there is
fire disaster. Today, we talk the temperature resistance performance.
Heat sources of power adapter are mainly schottky rectifier diode, high-frequency switch transformer, MOS, filter electrolytic capacitor, among them, temperature of MOS, high-frequency transformer and schottky rectifier diode is highlighted. While designing the power adapter, to avoid it damages cause by overheating, choose the high temperature character components is a must, meanwhile, PCB, heatsink, high-frequency transformer have to be designed reasonable, and advanced production technology, and need to adopt overheat protection, all these are prerequisite conditions to ensure safety.
In order to control the temperature of power adapter, except to choose the MOS with low leak current and short storage time, and need to add heat sink. Proof by facts, stability of power adapter will be enhanced after adding heatsink, and rate of loss will reduce. The function of overheat protection is to cut off the AC input cable, or close modulating pulse output, cease high frequency oscillation before easy hot components or temperature of adapter case over limit value.
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