基于AD603和MC34063的AGC控制器的设计

摘要

The automatic gain controller(AGC)is widely used in the field of industrial automation control and the output constant control of variable gain amplifier has practical application value for the system.To adjust the system rapidly, a design based on AGC chip AD603 and switching power supply chip MC34063 with AGC controller was made.Making use of MC34063 stable reference voltage and dynamic voltage regulator output access AD 603 gain control terminal to control the gain,the purpose of constant amplitude output system was achieved.It operates stably,reducing the impact of input disturbance and having rapid ad-justment.%自动增益控制器(AGC)广泛应用工业自动化控制领域,放大器时变增益使得控制的输出恒定具有切实应用价值,为使系统调节迅速,设计了一款基于AGC芯片AD603和开关电源芯片MC34063结合的AGC控制器,巧妙利用MC34063的稳定的基准电压和动态电压调节输出接入AD603增益控制端来控制放大增益,达到系统输出幅度恒定的目的;具有稳定,减少输入干扰的影响,调节迅速等优点.