The Application of SG3525 Pulse Width Modulator in Intermediate Frequency Induction Heating Power Supply

Xiao Ping Zong; Teng Yue Ma; Yao Xu Lei

doi:10.4028/www.scientific.net/AMM.281.308

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 281The Application of SG3525 Pulse Width Modulator in...

The Application of SG3525 Pulse Width Modulator in Intermediate Frequency Induction Heating Power Supply

Abstract:

In This paper, we introduce a kind of intermediate frequency induction heating power supply integral design based on the pulse width modulator SG3525, analyse SG3525, KA962F driving chip, the main circuit structure and function and realize frequency and occupies emptiescompared independent can be adjusted. The main circuit adopts the series resonant type IGBT half bridge inverter circuit. It outputs pulse with difference of two phases of 180 degrees to the IGBT driver board through the SG3525, IGBT driver board receives the pulse and drive the IGBT main circuit. Circuit adds the limit frequency protection circuit design, so that the heating power supply works in the inductive state. To improve the on-site operation safety.Finally the unit circuit experiment is conducted on the basis of the field experiment, it is proved that the whole design scheme is feasibility by experiments.

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Periodical:

Applied Mechanics and Materials (Volume 281)

Pages:

308-311

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.281.308

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Online since:

January 2013

Authors:

Xiao Ping Zong, Teng Yue Ma, Yao Xu Lei

Keywords:

IGBT Driver, Induction Heating (IH), Limit-Frequency Protect, SG3525

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