Research And Design Of Complex And Regulated Power Supply Based On FPCA

For actualizing the stability of electrical source better and enhancing the working outputextension of electric current, advancing the efficiency of power, a controlling tactic forcomplex and regulated power supply based on current tracking and hysteresis control isproposed.The complex and regulated power supply is formed by linear manostat and Buckconverter. The digital controller confirm the working state of linear manostat and Buckconverter based on the voltage and current, and the inductance current sample of Buckconverter, then actualizing the function of them by control arithmetic. For the greater rippleand lower precision of Buck converter compared with linear manostat, the Buck convertorwould be working when the load is low, and the linear manostat would be working when theload is high, and the inductance current would be controlling in a hysteresis extension of thedistributing current. It would make the average output-current of inductance to anticipantvalue, and level off the output-voltage. The detailed analysis for the dynamic response ofvoltage and current in load break and start-up process is proposed in this paper, and themethod for preferences and basis of design is proposed too. The emulation result included dataand waveform is gained through the emulation experiment on the analysissitus circuit of Buckconvertor-linear manostat parallel connection in Matlab/simulink surroundings. Finally, acomplex and regulated power supply based on current tracking and intelligent control modulewas fabricating based on the FPGA-Cyclone II EP2C8Q208C control terrace, and the researchwas accomplished by experimentation.The tactic in this paper was proved feasible and the academic analysis is proved accurate.Meanwhile the velocity of dynamic response was rapid, and it could ameliorate the ripplevoltage and voltage stabilizing precision availably, and it advanced the wide-load dynamic extension of voltage stabilizing power.For advancing the rapid of power dynamic response, the switch between each power issmooth. The time of load break is optimized analyzing and advancing detailedly. Theemulation result presented better effect of control tactic,and the dynamic characteristic ofcontrol system is advances.