| 基于TMS320F2812软开关技术的开关电源设计 |
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| 引用本文： | 孙起良,张志宏,何宏.基于TMS320F2812软开关技术的开关电源设计[J].天津理工大学学报,2012,28(4):46-50. |
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| 作者姓名： | 孙起良 张志宏 何宏 |
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| 作者单位： | 1. 天津理工大学自动化学院天津市复杂系统控制理论及应用重点实验室,天津,300384
2. 天津广播电视发展有限公司,天津,300072 |
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| 基金项目： | 天津市科技计划重点项目;新产品专项 |
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| 摘 要： | 针对目前开关电源滞后臂谐振能量不足难以实现零电压零电流开关（ZVZCS）的问题，本文基于DSP的控制芯片TMS320F2812，在移相全桥变换器电路的滞后臂串联二极管，利用PID控制技术，采用PWM移相全桥软开关技术控制开关电源的开关器件，在宽电压输入的情况下很好地实现了软开关，MATLAB仿真结果表明设计出的软开关技术开关电源具有较高的输出精度、快速的动态响应和很小的超调量等优点．
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| 关 键 词： | 软开关 开关电源 PID控制技术 数字信号处理 |
Design of switching power supply with soft switching technology based on TMS320F2812 |
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| SUN Qi-liang
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ZHANG Zhi-hong
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HE Hong.Design of switching power supply with soft switching technology based on TMS320F2812[J].Journal of Tianjin University of Technology,2012,28(4):46-50. |
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| Authors: | SUN Qi-liang ZHANG Zhi-hong HE Hong |
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| Institution: | 1. School of Electrical Engineering, Tianjin Key Laboratory for Control Theory and Application in Complicated Systems, Tianjin University of Technology, Tianjin 300384, China; 2. Tianjin broadcast and Television development company Ltd, Tianjin 300372, China) |
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| Abstract: | In the view of the adverse situation that lag-bridge of switching power supply does not have enough resonance energy to achieve zero-voltage zero-current switching（ ZVZCS）, this paper put diodes in series with the lag-bridge of phase-shifted full-bridge converter circuit, based on DSP control chip TMS320F2812, using PID control technology and PWM phaseshift full-bridge soft switching technology to control the switching devices of switching power supply. It performs well in achieving soft-switching with the changing input voltage, the results of MATLAB software simulation show that the designed switching power supply with soft switching technology has the benefits of high output accuracy, fast dynamic response and very small overshoot. |
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| Keywords: | soft switching switching power supply PID control technology digital signal processing |
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