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What is the Power Adapter Made Of?

1. Power adapter fuse: It is mainly used for overload protection. If the fuse is properly placed in the circuit, the fuse will cut off the current when the current abnormally rises to a certain height and heat, thus protecting the safe operation of the circuit.


2. Power adapter inductance coil (also known as choke coil): blocking effect, tuning and frequency selection.


3. Power adapter rectifier bridge: convert alternating current into direct current.


4. Power adapter varistor: It is mainly used for voltage clamping when the circuit is subjected to overvoltage, and absorbs excess current to protect sensitive devices.


5. Power adapter PWMIC (integrated circuit): Using a certain process, the transistors, resistors, capacitors, inductors and other components and wiring required in a circuit are interconnected, and made in a small or several small pieces of semiconductor wafers or dielectrics On the substrate, and then encapsulated in a package, it becomes a miniature structure with the required circuit functions; in which all components have been structurally formed as a whole, making electronic components towards miniaturization, low power consumption, intelligence and high reliability A big step forward.


6. Power adapter switching transformer: The DC input voltage is regarded as the same sequence of DC pulse voltage, that is, unipolar pulse voltage, through the function of controlling the switch on and off, and directly supplies power to the switching transformer.


7. Power adapter electrolytic capacitors: Electrolytic capacitors are named for their use of electrolytes as electrodes (negative electrodes). One end of the electrolytic capacitor is positive and the other end is negative, which cannot be reversed. The positive terminal is connected to the positive terminal of the rectifier output circuit, and the negative terminal is connected to the negative terminal of the circuit. In all circuits that need to convert alternating current into direct current, setting the filter capacitor will make the working performance of the electronic circuit more stable, and also reduce the interference of the alternating ripple on the electronic circuit.


8. High-power switch tube of China power adapter: It is one of the core components of switching power supply. The switching power supply can work "one on and one off", and the switch tube is indispensable.


As a leading power adapter supplier, we specialize in designing and manufacturing 5W to 120W power adapters/chargers, USB chargers and 100W to 3600W battery high power chargers. Almost all our products have passed UL, CE, GS, RCM, PSE, KC, KCC, BS, CCC and other safety certifications. Our customers come from all over the world, including the United States, Canada, Europe, Japan, Korea, etc. Welcome to consult.

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