Power losses and efficiency of buck PWM DC-DC power converter

机译：降压PWM DC-DC电源转换器的功率损耗和效率

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摘要

This paper derives an expression for efficiency of the buck converter that is obtained by determining the power loss in each component of a power converter. The expression for efficiency is derived as a function of the DC voltage transfer function and the circuit parameters. For a selected design, the derived expression is validated using a PSpice simulation. The expression is used to predict the variation in efficiency as well as the duty cycle of the design for two conditions: with varying input voltage and a fixed load; and with a fixed input voltage and a varying load.

机译：本文得出了降压转换器效率的表达式，该表达式可通过确定功率转换器每个组件的功率损耗来获得。效率的表达式是根据直流电压传递函数和电路参数得出的。对于选定的设计，使用PSpice仿真来验证派生的表达式。该表达式用于在两种情况下预测效率的变化以及设计的占空比：输入电压不断变化且负载固定;并具有固定的输入电压和变化的负载。

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《Electrical Insulation Conference and Electrical Manufacturing Expo, 2005. Proceedings》|2005年|P.417-423|共7页
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Das N.; Kazimierczuk M.K.;
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中图分类工业技术;
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DC-DC power convertors; PWM power convertors; SPICE; losses; transfer functions; PSpice simulation; buck PWM DC-DC power converter; power losses; voltage transfer function;

机译：DC-DC功率转换器; PWM功率转换器; SPICE;损耗;传递函数; PSpice模拟;降压PWM DC-DC功率变换器;功率损耗;电压传递函数;

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4. Power losses and efficiency of buck PWM DC-DC power converter [C] . Das N., Kazimierczuk M.K. Electrical Insulation Conference and Electrical Manufacturing Expo . 2005

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Power losses and efficiency of buck PWM DC-DC power converter

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