00354    a2200121   4500020001800000082001700018100001600035245006800051260005100119300002300170650001900193650002000212  a9788173197161  a621.317bARO  aArora, O.P.  aPower electronics laboratorybtheory, practice and organization  aNew DelhibNarosa publishing housec2007g2007  axiii, 356p.c24cm.  aApplied phsics  aControl devices