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- W2363069469 abstract "Based on Class-AB complementary symmetry power amplifier circuit theory,the designed low-frequency power amplifier using an integrated operational amplifier NE5532 as 3-level preamplifier circuit to amplify the weak signal effectively.The last stage power amplifier tube using high-power MOS transistors IRF9 640 and IRF 640 right tube constitutes a push-pull output circuit and can reduce the non-linear distortion effectively.An integrated filter MAX 261 was used to eliminate frequency signal interference.The amplifier output power,the supply power of DC power,efficiency of detection and display of the machine were controlled by the microcontroller AT89C51.In addition,the built-in DC power was made for the system to ensure the power output of the load." @default.
- W2363069469 created "2016-06-24" @default.
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- W2363069469 date "2010-01-01" @default.
- W2363069469 modified "2023-09-23" @default.
- W2363069469 title "Design of Low-frequency Power Amplifier with Parameter Detection and Display Function" @default.
- W2363069469 hasPublicationYear "2010" @default.
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