Design of a New Triangular Wave Generator Applied to D-class Power Amplifiers
This paper expounds the problem of poor symmetry and low linearity of the positive rise and negative attenuation of triangular wave signals in Class D audio amplifiers.Using the Mutisum simulation tool,the charging and discharging circuit of the triangular wave generator composed of 555 is improved and optimized by adding diodes,variable resistors,and introducing a constant current source.A triangular wave generation circuit that meets the parameter requirements of Class D audio amplifiers is designed,and a practical application circuit is formed to improve the symmetry and linearity of the positive rise and negative attenuation of triangular wave signals.
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