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An Interleaved Buck Converter with PID Controller


Affiliations
1 Sethu Institute of Technology, Viruthunagar, India
2 Department with the Sethu Institute of Technology, Viruthunagar, India
     

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This work proposes a new interleaved buck converter (IBC) which maintains a constant output voltage to a specified value with a PID controller. The PID controller varies the duty cycle of the switches to regulate the output voltage. The proposed converter has low switching losses, reduced voltage stress and high step-down conversion ratio which is suitable for the applications where the input voltage is high. Here, two active switches are connected in series with a coupling capacitor in the power path which operates below 50% of duty ratio to reduce the voltage stress of the active switch to half the input value before turn on and after turn off. As a result of this the switching losses and capacitive discharge losses are reduced. Hence the efficiency of the converter is increased.


Keywords

Duty cycle, Interleaved Buck Converter (IBC), PID Controller, Switching Loss.
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  • An Interleaved Buck Converter with PID Controller

Abstract Views: 265  |  PDF Views: 2

Authors

G. Saranya Devi
Sethu Institute of Technology, Viruthunagar, India
S. P. Umayal
Department with the Sethu Institute of Technology, Viruthunagar, India

Abstract


This work proposes a new interleaved buck converter (IBC) which maintains a constant output voltage to a specified value with a PID controller. The PID controller varies the duty cycle of the switches to regulate the output voltage. The proposed converter has low switching losses, reduced voltage stress and high step-down conversion ratio which is suitable for the applications where the input voltage is high. Here, two active switches are connected in series with a coupling capacitor in the power path which operates below 50% of duty ratio to reduce the voltage stress of the active switch to half the input value before turn on and after turn off. As a result of this the switching losses and capacitive discharge losses are reduced. Hence the efficiency of the converter is increased.


Keywords


Duty cycle, Interleaved Buck Converter (IBC), PID Controller, Switching Loss.