Method for realizing automatic switching of seven Lorenz type chaotic systems and analog circuit

The present invention proposes a method and an implementation of analog circuits to Lorenz chaotic system automatically switches seven system, the seven type of Lorenz chaotic system automatically switches from the operational amplifier circuit U1, an operational amplifier U2, operational amplifier U3, the operational amplifier U5 , the multiplier U4 operational amplifier U8, U9 multiplier, the multiplier U10, a multiplier U11, U12 multiplier, the multiplier and the voltage comparator U13 and the analog switch U6 U7 composition of the present invention is realized using an analog circuit to Lorenz seven the system automatically switches chaotic system and method of analog circuits, seven subsystems have different equilibrium points, automatic switching subsystems have the same equilibrium ratio has a greater random digital sequence generated based on more suitable in Chaos Secure communications, has better prospects in chaotic secure communication based.