一、A类(甲类)放大级电路 A类(甲类)功率放大器,虽然在市场上不会取代B类(乙类)放大器而成为主流产品,但是它有其独特吸引人的地方,如迄今为止所考察的绝大多数失真机理来源于B类(乙类)放大器,而对于A类(甲类)而言,令人欣慰的是可以忘掉交越和开关失真、非线性VAS负载所造成的失真、电源干线干扰信号的注入、供电电流的感应及错误反馈连接所造成 A. Class A (Class A) Amplifier Circuits Class A (Class A) power amplifiers, while not a mainstream product in the marketplace as a replacement for Class B (Class B) amplifiers, have their own unique attractions, such as Most of the distortion mechanisms examined to date have come from Class B (class B) amplifiers, but for Class A (Class A), the relief is that crossover and switching distortion can be forgotten, caused by non-linear VAS loads Distortion, power line interference signal injection, the supply current sensing and error feedback connection