Diode: a semi-conductor or vacuum tube device which has two electrodes. It permits a current to flow from from cathode to anode only Used as a rectifier.
二极管：具有两个电极的半导体或空管。它只容电流从阴极流向阳极。可作整流器用。
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This paper based on analyzing the X-Ray tube designs the switching power supply circuit, analyzes the principle of APFC, LCC half bridge resonance convertor and dual rectifier circuit.
The Dongguan spring core electron Limited company manages silicon-controlled rectifier, field tube, two triodes, rectification bridge best-selling consumer market.