source:Industry News Popular:adapter release time:2021-12-29 11:27:48 Article author:sznbone
1. Power adapter fuse: It is mainly used for overload protection. If the fuse is properly placed in the circuit, the fuse will fuse and cut off the current when the current rises to a certain height and heat abnormally, which protects the safe operation of the circuit.
2. Inductance coil (also known as choke coil): choke and tuning, frequency selection.
3. Rectifier bridge: convert alternating current to direct current.
4. Varistor: Mainly used for voltage clamping when the circuit is subjected to overvoltage, absorbing excess current to protect sensitive devices
5. PWMIC (Integrated Circuit): Use a certain process to interconnect the transistors, resistors, capacitors, inductors and other components and wiring required in a circuit to make them on one or several small semiconductor wafers or dielectric substrates. , And then encapsulated in a tube case to become a miniature structure with the required circuit functions; all of the components have been structured as a whole, so that the electronic components are moving towards miniaturization, low power consumption, intelligence and high reliability. A big step.
6. Switching transformer: The DC input voltage is regarded as a series of DC pulse voltage, that is, unipolar pulse voltage, which directly supplies power to the switching transformer.
7. Electrolytic capacitor: Electrolytic capacitor gets its name because of its use of electrolyte as the electrode (negative electrode). One end of the electrolytic capacitor is the positive electrode, and the other end is the negative electrode, 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 to direct current, setting a filter capacitor will make the working performance of the electronic circuit more stable, and at the same time reduce the interference of the alternating ripple ripple on the electronic circuit
8. Power adapter high-power switching tube: It is one of the core components in the switching power supply. The switching power supply can work "one on and one off", and the switching tube is indispensable.
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