Air-Pulse Generating Device and Driving Circuit with Anti-Fatigue Asymmetric Initial Deflection

A driving circuit, configured to drive an air-pulse generating device, the driving circuit comprising:

• a raw valve driving signal generator, configured to generate a first raw valve driving signal and a second raw valve driving signal;
• wherein the air-pulse generating device comprises a flap pair, and the flap pair comprises a first flap and a second flap;
• wherein the driving circuit generates a first valve driving signal according to the first raw valve driving signal to drive the first flap and generates a second valve driving signal according to the second raw valve driving signal to drive the second flap;
• wherein the flap pair is driven to possess an initial deflection difference or exhibits an average displacement difference between the first flap and the second flap;
• wherein during a first phase, the first flap initially deflects toward a first direction;
• wherein during a second phase, the second flap initially deflects toward the first direction.