Self-compensation high-precision digital PWM signal generating circuit

The invention relates to the technical field of circuits, in particular to a self-compensation high-precision digital PWM signal generating circuit, which solves the problems of low precision and low compatibility in the prior art from the aspects of period, Dead-Band, duty ratio and the like, and solves the problem of errors generated by temperature difference of a standard delay unit by utilizing a compensation module. A self-compensation high-precision digital PWM signal generation circuit comprises a calculation module, a compensation module, a PWM generation module, a Dead-Band insertion module and a duty ratio fine adjustment module, and according to the calculation module, the cycle input by a bus and the numerical value of the duty ratio both comprise information used for coarse adjustment and information used for fine adjustment; the calculation module converts the input period and duty ratio into the clock period number needed by coarse adjustment and the delay unit number needed by fine adjustment