The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Analysis of Current Mode Controlled Zero Voltage Switching Half Bridge PWM Converter

전류모드로 제어되는 영전압 스위칭 하프 브리지 PWM 컨버터의 해석

  • Published : 2003.02.01
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Abstract

There exist the high frequency components, which can not be predicted by the low frequency model, due to the presence of sampling effect in current mode control. In this paper, the output voltage equations for the ZVS half bridge PWM convertor are derived from the steady state analysis, and the sampling gain presented in the current control loop is Investigated to improve the Prediction Performance of low frequency model of ZVS half bridge PWM converter.

전류모드 제어시 전류루프에는 표본화 효과에 의해 저주파 모델로는 예측하기 어려운 고주파 성분이 존재한다. 본 논문에서는 영전압 스위칭 하프 브리지 컨버터의 정상상태에서의 출력전압 관계식을 구한다 또 이를 바탕으로 전류모드로 제어할 때 전류루프에 존재하는 표본화 효과를 고려하여 저주파 소신호 모델이 예측하기 어려운 고주파 성분의 특성을 표본화 이득을 통하여 더욱 정확히 예측할 수 있는 방법을 제시한다.

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References

  1. IEEE Trans. on Industry Applications Asymmetrical duty cycle permits zero switching loss in PWM circuits with no conduction loss penalty P. Imbertson;N. Mohan
  2. IEEE Power Electron. Spec. Conf. Records An overall study of the half bridge complementary-control DC-to-DC converter J. Sebastian;J.A. Cobos;O. Garcia;J. Uceda
  3. IEEE Power Electron. Spec. Conf. Calculation of the voltage transfer ratio of the asymmetrical half-bridge DC/DC converter using transformer's windings coupling coefficients S. Korotkov;S. Fraidlin
  4. IEEE Power Electron. Spec. Conf. Modelling of ZVS transitions in asymmetrical half-bridge PWM converters T. Tolle;T. Duerbaum
  5. IEEE Trans. on Power Electron. v.6 no.2 A new, continuous-time model for current-mode control R.B. Ridley
  6. IEEE Trans. on Power Electron. v.10 no.4 A Unified Model for Current-Programmed Converters T.D. Tan;R.D. Middlebrook
  7. International Journal of Electronics v.86 no.4 Mathematical interpretation of practical sampler in current mode control Y.S. Jung;I.H. Oh;H.C. Choi;M.J. Youn