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Hacheur

Hacheur. Support de cours. Christian PERRIN christian.perrin@ac-nancy-metz.fr. I)Rappel fonctionnement interrupteur unidirectionnel à transistor. ic. ib. vce. chronogrammes. ib. vbe. t. .T. T. vce. ic. ib. vbe. t. .T. T. vce. Vbe>0, saturation (vce=0 si parfait)

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Hacheur

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  1. Hacheur Support de cours Christian PERRIN christian.perrin@ac-nancy-metz.fr

  2. I)Rappel fonctionnement interrupteur unidirectionnel à transistor ic ib vce

  3. chronogrammes ib vbe t .T T vce ic

  4. ib vbe t .T T vce Vbe>0, saturation (vce=0 si parfait) ic= icmax ic

  5. ib vbe t .T T vce Vbe0, blocage (ic=0 si parfait) vce= vcemax ic

  6. II) Hacheur série

  7. 1) Courant ininterrompu U uc t .T T icmax ic Ondulation I = icmax-icmin icmin icmax iDRL iH icmin

  8. 1) Courant ininterrompu U uc Hfermé t .T T icmax ic icmin icmax iDRL iH icmin

  9. 1) Courant ininterrompu (cas général) U uc Hfermé t .T T icmax ic icmin icmax iDRL iH icmin

  10. 1) Courant ininterrompu (cas général) U uc Hfermé Houvert t .T T icmax ic icmin icmax iDRL iH icmin

  11. 1) Courant ininterrompu (cas général) U uc Hfermé Houvert t .T T icmax ic icmin icmax iDRL iH icmin

  12. 1) Courant ininterrompu (cas général) U uc Hfermé Houvert t .T T icmax ic icmin icmax iDRL iH icmin

  13. 1) Courant ininterrompu (cas général) U uc Hfermé Houvert t .T T icmax ic icmin icmax iDRL iH icmin

  14. 1) Courant ininterrompu (cas général) U uc Hfermé Houvert t .T T icmax ic icmin icmax iDRL iH icmin

  15. REMARQUE: Courant ininterrompu (cas fréquent  >>T) U uc Hfermé Houvert t .T T icmax ic icmin icmax iDRL iH icmin

  16. 2) Courant interrompu (cas général) U uc Houvert Hfermé t .T .T T icmax ic icmin icmax iDRL iH icmin

  17. 2) Courant interrompu (cas général) U uc Houvert Hfermé t .T .T T icmax ic icmin icmax iDRL iH icmin

  18. 2) Courant interrompu (cas général) U uc Houvert Hfermé t .T .T T icmax ic icmin icmax iDRL iH icmin

  19. 2) Courant interrompu (cas général) U uc Houvert E Hfermé t .T .T T icmax ic icmin icmax iDRL iH icmin

  20. 2) Courant interrompu (cas général) U uc Houvert E Hfermé t .T .T T icmax ic icmin icmax iDRL iH icmin

  21. III) Hacheur parallèle : élévateur iH Hypothèse courant linéaire

  22. chronogrammes commande Houvert Hfermé t T .T ic,iL,iH uc uH

  23. chronogrammes commande Houvert Hfermé t T .T ic,iL,iH uc uH

  24. chronogrammes commande Houvert Hfermé t T .T ic,iL,iH uc uH

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