<p>In an up-converter supplied by the mains supply and operating in the critical mode, the on-time of the switching element (2) is modulated so that it is increased in the vicinity of the zero crossings of the mains supply voltage. As a result the THD is lowered.</p>
申请公布号
WO2004107545(A1)
申请公布日期
2004.12.09
申请号
WO2004IB50761
申请日期
2004.05.24
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;MELAI, HENRI, A., I.;HENDRIKX, JOHAN, A.;VAN DIJK, BERNHARD, C.;VELDMAN, PAUL, R.
发明人
MELAI, HENRI, A., I.;HENDRIKX, JOHAN, A.;VAN DIJK, BERNHARD, C.;VELDMAN, PAUL, R.
