The power amplifying circuit formed by LM377 and others

Published:2011/6/1 22:41:00 Author:leo | Keyword: The power amplifying circuit formed by LM377 and others, LM377 | From:SeekIC

Picture 1 is a power amplifying circuit formed by LM377 and others. LC377 is a integrated circuit which has two in-die power amplifiers. If making the two power amplifiers connecting as electronic bridge, it can supply double power in valve to floating land negative load RL. Negative load RL can be servo motor or speaker. A1 and DC output port has the same electric potential, so it can not be connected to the stop capacitor with large capability. When the negative load is 8 to 16 Ω, the response frequency of the circuit is 20Hz-160 KHz. When output power is 4W, the distortion of middle frequency is 0.1%. And when output power is 50mW, the distortion of middle frequency is 0.5%.



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