An experimental circuit for controlling discrete chaos based on OGY method is introduced, and the control of the unstable fixed point is realized by means of Henon's circuit, the experimental results are corresponding with theoretic results.
This paper introduces the fullctional characters of the completely electrically isolated RS -485 serial data communication interface chip MAX1480A/B.The different characters between MAX1480A and MAX1480B were instrictly tested and analyzed by the two AT89C51 communication circuit and useful conclusions, complete experiment circuit and test programs were given.
This paper discusses and analyzes error code performance when Binary Frepuency Shift Keying waves 2FSK are receipted by the transformation way of frequency-phase, flowchart and the test method of the error code performance of this experiment circuit by use of TP-801 single board computer.
The induction heating power system composition, the circuit resonance way and the characteristic, the MOSFET parallel technology, as well as the many kinds of power adjust way was carried on the theory and simulation, though designed experiment circuit, each kind of concrete question, the phenomenon and its solution which appeared in the realization process was conducted the research and the practice.
The relevant experimental circuits and testing method are also presented in this paper. Experimental results show that SK8050S is much superior to the widely used three-terminal regulator L7805 in terms of the efficiency and vol-tage stability. Its output current can reach 3A at the output voltage of 5V.Its efficiency can be as high as 91%.
Through comparing the Wheatstone bridge experiments using the digital voltmeters of different precisions with the same experiments using the AC5/1 galvanometer on the experimental results,the operating methods,the requirements of measurement resistances and the service life of instruments,it has been shown that the digital voltmeter can simplify the experimental circuits,reduce the operation steps and increase experimental precisions.
The synchronous convergence of circuits parameters matching between transmitter and receiver is discussed. Hardware experimental circuits are designed. Chaotic communication on speech and music signals transmission is demonstrated.
Based on the analysis of binary and ternary flip flops,quaternary D type and T type master slave flip flops with four rail outputs are introduced. The computer simulation and the test of the experimental circuits composed of TTL gates show that the flip flops have predetermined logic functions.
By an analysis of the relationship between the waveforms of the cycle five-counterdown in the current switch, several methods for mode changing by using this circuit are given. Logical combinations are studied, the resolution for the preset counterdown is discussed and the test circuit presented.
The typical current and voltage waveform of TRAPATT diode as well as its inherent physical parameters and operating parameters are investigated in this paper. The normalized impedance, power output, efficiency and characteristics of the harmonics in the large nonlinear range are analysed by using the frequency domain method. The requirements of impedance match between the device and the circuit in various operating conditions are obtained. The maximum possible efficiency of TRAPATT diode is estimated. The numerical...
The typical current and voltage waveform of TRAPATT diode as well as its inherent physical parameters and operating parameters are investigated in this paper. The normalized impedance, power output, efficiency and characteristics of the harmonics in the large nonlinear range are analysed by using the frequency domain method. The requirements of impedance match between the device and the circuit in various operating conditions are obtained. The maximum possible efficiency of TRAPATT diode is estimated. The numerical calculations are given with some typical parameters of the device and the circuit in S-band as an example, and characteristic curves for different working conditions are plotted. The results, show that measured values of circuit impedance are close to those calculated from typical waveforms.
It is very important to choose a good synchronoua system of M(?)ssbauerspectrometer for getting accurate M(?)ssbauer spectra.In this paper somealternative synchrodyne circuits and an accessory synchro-indicator areprovided.