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Development of a Novel Zero-Voltage Zero-Current-Switching Full-Bridge DC/DC Converter Based on ARM Control

Author: TanLi
Tutor: LiuXingQiao
School: Jiangsu University
Course: Power Electronics and Power Drives
Keywords: Soft-switching ZVZCS Phase-shifted ARM LPC2210 Full-bridge Converter
Type: Master's thesis
Year: 2007
Downloads: 258
Quote: 1
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Soft-Switching technique is a hotspot of power electronic research. It’s the key technique in high frequency and high density converter. With the advent of microprocessor, there has been an increased interest in digital control of switch mode power supply, instead of analog control. The digital control scheme has many advantages in simplifying the control circuit, improving the anti-interference ability, control precision and flexibility, general and intelligent level. A novel ZVZCS converter is proposed using a coupled output inductor, which is digital controlled.The principle of the novel converter is analyzed, and the foundations of parameter-design are presented. Furthermore, parameter calculation formulas at different modes are deduced. A digital control system based on ARM (LPC2210) controller is designed and achieve the output of Phase-shifting PWM signal. A simulation is performed for the converter using Pspice9.2, and different parameters’ effects on performance of converter are analyzed. A ZVZCS soft-switching power supply with 1kW based on this topology and digital control strategy is developed. And the design of main, control, drives and protection circuits are presented. Lastly, working waveforms of the converter are measured on the prototype.Theory analysis and experiments have showed that this novel converter can realize ZVS of leading-legs and ZCS of legging-legs. As adopting ARM to carry on the digital control, it is quicker, steadier, more flexible than the traditional analog control, and the circuits is simpler, etc.. It creates the foundation for the carrying out of the intelligent digital power supply. So this novel converter has a wide application and huge economy effect in power converting field.

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CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Converter
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