Organisatieveranderingen in samenwer­king detailhandel ('80-'94)

Kunden-Nutzen mit Multimedia im Detailhandel

v 1 5 O ct 1 99 4 DAMTP 94 - 80 CONFORMAL FIELD

An account is given of the structure and representations of chiral bosonic meromorphic conformal field theories (CFT's), and, in particular, the conditions under which such a CFT may be extended by a representation to form a new theory. This general approach is illustrated by considering the untwisted and Z 2-twisted theories, H(Λ) and˜H(Λ) respectively , which may be constructed from a suitabl...

An Integrated 80-V Class-D Power Output Stage with 94% Efficiency in a 0.14μm SOI BCD Process

In this paper we present a highly-efficient 80V class-D power stage design in a 0.14μm SOI-based BCD process. Immunity to the on-chip supply bounce is realized by internally regulated floating supplies, variable driving strength for the gate driver, and an efficient 2-step level shifter design. Fast switching transition and minimized switching loss are achieved with a 94% peak efficiency in the...

KONVENS 94 in Wien

namayeh 94

0