Patent ID: 11863135
Assignee: CRM ICBG (WUXI) CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A method for realizing self-adaptive adjustment and modulation of an audio signal of a Class D power amplifier according to the system of claim 1, comprising:
(1) inputting the audio signal to the amplification circuit module, and performing amplification processing, by the amplification circuit module, on the audio signal;
(2) inputting the audio signal to the frequency detection circuit module, and performing frequency detection processing, by the frequency detection circuit module, on the audio signal;
(3) inputting the audio signal to the amplitude detection circuit module, and performing amplitude detection processing, by the amplitude detection circuit module, on the audio signal;
(4) transmitting a signal generated after the frequency detection processing to the carrier generator module, loading the signal generated after the frequency detection processing onto the carrier modulation signal, and transmitting the signal generated after the frequency detection processing and the carrier modulation signal to the PWM circuit module;
(5) performing, by the PWM circuit module, PWM processing on a signal generated after the amplification processing and a signal generated after the frequency detection processing to generate the PWM signal, and performing, by a drive circuit module, system drive processing on the PWM signal to feed back to the audio signal; and
(6) transmitting a signal generated after the amplitude detection processing to the DC potential adjustment module, performing, by the DC potential adjustment module, DC potential analysis on the signal generated after the amplitude detection processing to generate the DC potential of the audio signal.