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1. (WO2002009263) FULLY DIGITAL VOLTAGE TRANSFORMER

Pub. No.:    WO/2002/009263    International Application No.:    PCT/DE2001/002652
Publication Date: Jan 31, 2002 International Filing Date: Jul 12, 2001
IPC: H02M 3/157
Applicants: INFINEON TECHNOLOGIES AG
KRANZ, Christian
Inventors: KRANZ, Christian
Title: FULLY DIGITAL VOLTAGE TRANSFORMER
Abstract:
The invention relates to a switching DC voltage transformer, the regulation circuit of which functions digitally, apart from the digitisation element. During the off-phase of the switching cycle the output voltage is measured, which results in a characteristic sloped voltage curve. Control of the output voltage is achieved in such a way that said sloped voltage curve is divided about the given set voltage such that a particular fraction of the digitised voltage values lies above the set voltage and the remainder below the set voltage.