Two level inverter type MAO power source and output regulation control method thereof
2008
The invention provides a two-stage inversion type micro-arc oxidation power supply, comprising a main circuit, a control system and a human-computer interaction device, wherein, the main circuit comprises a power supply switch, an input rectifying and filtering circuit, a power inverter circuit, a high frequency transformer, an output rectifying and filtering circuit and a chopper inverter circuit. The control system comprises a control transformer and a control circuit. The human-computer interaction device comprises a keyboard and a display. The control transformer and the input rectifying and filtering circuit are respectively connected with a power frequency AC network by the power supply switch. The chopper inverter circuit is connected with a load. The control circuit is respectively connected with the power inverter circuit, the chopper inverter circuit, the keyboard, the display and the output end of the output rectifying and filtering circuit. The two-stage inversion type micro-arc oxidation power supply is characterized by high control precision, rapid response speed and multiple outputs. Furthermore, the technique stability is good and the intelligent monitoring is adopted, therefore, high efficiency, high frequency and intelligence can be realized.
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