Analysis of SMPS in Clinical Medical Equipment

Jun Ying Zhou; Nan Zhang; Su Fang Kong; Fu Hua Zhang; Xiu Xian Guo

doi:10.4028/www.scientific.net/AMM.484-485.671

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 484-485Analysis of SMPS in Clinical Medical Equipment

Analysis of SMPS in Clinical Medical Equipment

Abstract:

There exists low voltage in circuit of domestic and imported medical equipment and it is what we call power supply. In the past, equipment mainly uses transformer to step down the voltage of power supply. With the progress of science and technology, the technique is gradually replaced by SMPW (switch mode power supply) which is extensively applied to various types of medical equipment due to the high efficiency and wide voltage range. The mains power supply is rectified and filtered into a DC high voltage and then use the switch circuit and energy storage elements to convert them into a variety of required DC voltage output, output DC voltage level can be adjusted by changing the off time (namely Mark-Space Ratio) of switching circuit.

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Periodical:

Applied Mechanics and Materials (Volumes 484-485)

Pages:

671-673

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.484-485.671

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Online since:

January 2014

Authors:

Jun Ying Zhou, Nan Zhang, Su Fang Kong, Fu Hua Zhang, Xiu Xian Guo

Keywords:

High-Frequency, Medical Equipment, Switch Mode Power Supply, Voltage Step-Up

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References

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