00443nam a2200157Ia 4500008004100000020001400041082001900055100001800074245005000092250000700142260004400149300003100193500001900224600002700243650001500270240925s9999    xx            000 0 und d  a750695072  a621.381044 LEN  aLenk, John D. 0aSimplified Design of Switching Power Supplies  aNA  aBoston:bButterworth- Heinemannc,1995.  axxiii,1200p.bNAfOriginal  aIncludes Index  aElectronic Engineering  aTechnology