Power loss model for efficiency improvement of boost converter

Ivanovic, Zeljko; Blanuša, Branko; Knezic, Mladen

doi:10.1109/icat.2011.6102129

Cited by 53 publications

(25 citation statements)

References 4 publications

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“…This method will affect the conduction loss of the power MOSFET at the instant it is turned on/off. According to reference [18], the formula for power increment is the following:…”

Section: The Proposed Progressive Trigger Methodsmentioning

confidence: 99%

A novel progressive trigger method of di/dt control for MOSFET

Zhang

Pan

et al. 2016

IEICE Electron. Express

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A novel progressive trigger (PT) method of di/dt control for MOSFET is presented in this paper. The principle of the proposed method is based on the progressive trigger current during ON and OFF states by variable channel width for MOSFET. The experimental results show that the di/dt reduces from 105 mA/nS to 57 mA/nS for OFF state, and from 110 mA/nS to 86.7 mA/nS for ON state with R ON = 0.5 Ω and V gg = 3 V. The flexibility of the method is easy to implement in integrated circuits.

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“…This method will affect the conduction loss of the power MOSFET at the instant it is turned on/off. According to reference [18], the formula for power increment is the following:…”

Section: The Proposed Progressive Trigger Methodsmentioning

confidence: 99%

A novel progressive trigger method of di/dt control for MOSFET

Zhang

Pan

et al. 2016

IEICE Electron. Express

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“…power MOSFET losses in a buck converter [4], or system-level losses, e.g. boost converter [5], are addressed. Several methods to measure system-level power loss have been deliberated in some of the research work, for instance in [6,7], electrical power method and calorimetric methods are provided.…”

Section: Acrmentioning

confidence: 99%

A building-block approach to efficiency and cost models of power electronic systems

Kulkarni

Bazzi

2014

2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014

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This paper presents efficiency and cost models of power electronic converters based on converter ratings and datasheet information. These models aid in creating rapid prototypes which facilitate the component selection process. Through this rapid prototyping, users can estimate efficiency and cost which are essential in design decisions. The proposed approach treats main power electronic components as building blocks that can be re-arranged for different topologies. In order to get efficiency models, power losses of each building block are estimated. Cost models for each building block are derived based on an extensive market survey. Three examples are used to illustrate the proposed approach-boost and buck converters in continuous conduction mode (CCM) and flyback converter in discontinuous conduction mode (DCM). Achieved cost and loss estimates are over 92% accurate when compared to measured losses and real cost data. This paper presents derivations of the proposed models, detailed experimental measurements and demonstration of a GUI that integrates all models.

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“…Energy losses in elements of the boost converter can be divided into inductor losses, power switch losses and diode losses [37][38][39][40]. Total energy losses P TOT is expressed as:…”

Section: Loss Distribution Analysismentioning

confidence: 99%

High Gain Boost Interleaved Converters with Coupled Inductors and with Demagnetizing Circuits

et al. 2018

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This paper proposes double interleaved boost converters with high voltage gain and with magnetically coupled inductors, while a third coupled winding is used for magnetic flux reset of the core during converter operation. The topology of the proposal is simple, it does not require many additional components compared to standard interleaved topologies, and it improves the transfer characteristics, as well as system efficiency even for high power levels. The investigation of steady-state operation was undertaken. It was discovered that the proposed converter can be designed for a target application where very high voltage gain is required, while adjustment of voltage gain value can be done through duty-cycle variation or by the turns-ratio modification between individual coils. The 1 kW prototype was designed to test the theoretical analysis. The results demonstrate that the proposed converter achieves very high voltage gain (1:8), while for the designed prototype the peak efficiency reaches >96% even when two additional diodes and one winding were implemented within the converter's main circuit. The dependency of the output voltage stiffness on load change is minimal. Thus, the presented converter might be a proper solution for applications where tight constant DC-bus voltage is required (a DC-DC converter for inverters).

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Power loss model for efficiency improvement of boost converter

Cited by 53 publications

References 4 publications

A novel progressive trigger method of di/dt control for MOSFET

A novel progressive trigger method of di/dt control for MOSFET

A building-block approach to efficiency and cost models of power electronic systems

High Gain Boost Interleaved Converters with Coupled Inductors and with Demagnetizing Circuits

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