A General Chaotic Circuit Design and Hardware Implementation via the Inductance Integrators

This paper presents a scheme for the modified chaotic circuits based on inductance integration. In view of the fact that the DC resistance of an inductor in the circuit cannot be ignored, this way of constructing the circuits is provided that can eliminate its influence on the integral circuits. By means of cascading an inverting adder circuit and inductance integral circuit, the output signal of the integral circuit is fed back to the inverting adder circuit, and its additive term is artificially added to match the actual inductance integrated circuit to achieve integral circuit based on the actual inductor which can offset the effect of its DC resistance. In order to verify the generality of the design, the process of designing Lorenz chaotic circuit is given and its attractors can also be observed from the oscilloscope.

Circuit Design of High Reliability Pulse Driver for Relay Control

Relay control is one of the most commonly device driver methods used in industrial control, the commonly control method is using high or low level. Short pulse jitter is extremely easy to cause misoperation of relay. This paper mainly introduces a kind of high reliability relay control method what using pulse driving source, integral circuit, selector and comparator. It can be effectively to reduce the relay misoperation, guarantee the equipment reliability in the engineering application.

Intelligent Temperature Controlling System Based on Single Chip Microcomputer

Based on the principle of integral circuit and thermal element, the present study considers the application of 80C51 single-chip micro-computer into the design of intelligent temperature control system. In this paper, the main approach is to make the ambient temperature change in accordance with the pulse width variation. The process is realized through the integral circuit consisting of the thermal resistor, capacitor and operational amplifier. In this way, with the pulse width measurement, we can detect the ambient temperature as well as control the external circuit. The experiment indicated that the system simplifies the temperature measurement with high reliability, great convenience and wide applications.