Paper Pres1

8/2/2019 Paper Pres1

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AUTHOR : CO - AUTHOR:

INDERPREET KOUR ER .NAVDEEP KAUR BRAR


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CONTENT

INTRODUCTION

MAXIMUM CURRENT THROUGH INDUCTOR OF BUCK CONVERTER

OPERATING REGION OF BUCK CONVERTER

OUTPUT VOLTAGE RIPPLE (OVR) OF BUCK CONVERTER

OUTPUT SHORT CIRCUIT DISCHARGED ENERGY (OSDE)

CONCLUSION

REFERENCES


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PAPER DEALS WITHMAXIMUM CURRENT THROUGH INDUCTOR OF

BUCK CONVERTER


OUTPUT VOLTAGE RIPPLE (OVR)

OUTPUT SHORT CIRCUIT DISCHARGED ENERGY


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BUCK CONVERTER

It is a Step Down DC DC Converter.

It converts an input voltage into lower output

voltage.

A device termed intrinsically safe is designed to notcontain any components that produce sparks .

INTRODUCTION


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CIRCUIT DIAGRAM OF BUCK CONVERTER


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MAXIMUM CURRENT THROUGH

INDUCTOR OF BUCK CONVERTERANALYSED IN :

Continuous Conduction Mode (CCM)

Discontinuous Conduction Mode (DCM)


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1. CONTINUOUS CONDUCTION MODE


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2 . DISCONTINUOUS CONDUCTION MODE


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OVR OF BUCK CONVERTER

For L >L cc

For L< LCA

For LCA

< L


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LCA

< L< LCB

LCB

< L< L cc


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OUTPUT SHORT CIRCUIT DISCHARGED ENERGY

Summation Of Maximum Energy Stored in Capacitor

and Inductor

In CCM , it increases with inductor

In DCM , it is independent of the value of inductor


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If the maximum current of the inductor is less than the

minimum ignition current within the whole operating

region then converter meets the requirement of inner

intrinsic safety.

If MOSCDE is less than the corresponding minimum

ignition discharged energy then converter meets the

requirement of outer intrinsic safety.


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REFERENCES[1] Liu Shulin, Liu Jian. Intrinsically Safe switching Converters. Science press,

Beijing, 2008 (in Chinese).

[2] Shu-lin Liu, Yi - bo Ma, Yun-wu Zhang Optimal Design of Inductance and

Capacitance of Output Intrinsically Safe Buck DC-DC Converters . School of

Electrical and Control Engineering, Xi'an University of Science &

Technology,2010

[3] Liu Shulin, Liu Jian, Kou Lei, Zhong Jiuming. Analysis of Output Ripple

Voltage of Buck DC/DC Converter & Its Application. Transactions of China

Electro technical Society, 2009

[4] ZHOU Zheng hai, DENG Xian can, LOU Xiang xiong .The Design ofLow voltage High frequency PWM DC/DC Converter . Research & Progress

of SSE, 2004(4): 462-465,Apr.


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[7] Zhansong Zhang, Xuansan Cai, Theory and Design of Switching powersupply, Publishing house of electronics industry, Beijing,1998.

[8] Liu Xiaoqiang, On intrinsically safe DC switching power supply and its reserve

power supply Doctoral Dissertation of China University of Mining & Technology,

2001.

[9] Jianfei Li, Zhixin Xu, Heqing Zhong, Constant voltage restricted current and

constant current restricted voltage DC-DC converter. Power Electronic, 1999(1):42-

44, Feb.

[10] Shulin Liu, Jian Liu, Yinling Yang, Jiuming Zhong ChinaDesign of

Intrinsically Safe Buck DC/DC Converters . School of Electrical and ControlEngineering, Xi'an University of Science & Technology, Xi'an, 1996.

REFERENCES


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