DC-DC converter

Details DC-DC converter DC-DC converter

2006-10-03

2006-10-03

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

C323S222000, C323S224000, C323S259000, C323S271000

Reexamination Certificate

active

07116085

ABSTRACT:
The objective of this invention is to reduce the current flowing through the inductance element in a step-up/step-down DC—DC converter and to control the ripple in the output voltage. In the DC—DC converter, four states, that is, the first state [1] of (M1, M2)=(off, on) and (M3, M4)=(on, off), the second state [2] of (M1, M2)=(on, off) and (M3, M4)=(off, on), the third state [3] of (M1, M2)=(on, off) and (M3, M4)=(on, off), and the fourth state [4] of (M1, M2)=(off, on) and (M3, M4)=(off, on) are repeated in a prescribed order, preferably in the order . . . [1]→[4]→[2]→[3]→[1] . . . or . . . [1]→[3]→[2]→[4]→[1] . . . .

REFERENCES:
patent: 5734258 (1998-03-01), Esser
patent: 5889392 (1999-03-01), Moore et al.
patent: 6166527 (2000-12-01), Dwelley et al.
patent: 6348779 (2002-02-01), Sluijs
patent: 6765371 (2004-07-01), Kataoka
patent: 6788033 (2004-09-01), Vinciarelli
patent: 6812676 (2004-11-01), Tateishi
patent: 6977488 (2005-12-01), Nogawa et al.
patent: 2005/0093526 (2005-05-01), Notman

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