description:
In the power circuit, the input power circuit is 220V AC voltage, and the DC working voltage output from the power circuit is often only a few volts or more than a dozen, or several tens of volts, and before the AC voltage is rectified, it needs to be lowered first. Pressure treatment, reduce the 220V AC voltage to a few volts or a dozen volts, or a few tens of volts. This process of AC voltage is done by an AC voltage circuit, specifically by a power transformer.
In the AC array circuit and the anti-jamming circuit, four kinds of electronic components, namely, an inductor, a transformer, a power switch, and a capacitor are mainly used.
The main contents of this document are the basic knowledge and detection method of the inductor, the basic knowledge and detection method of the transformer, the fault and maintenance method of the power switch circuit, the analysis of the AC input voltage conversion circuit and the fault analysis!
There are several circuit examples in the attached file. For more analysis and content, please refer to the PDF document!
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