Title:
DC-DC CONVERTER
Document Type and Number:
WIPO Patent Application WO/2012/030824
Kind Code:
A3
Abstract:
An output stage of a switching DC-DC converter (110) includes a pair of transistors (220, 240) and a bias transistor (230) connected between the transistors (220, 240). A voltage regulator (210) generates a bias voltage to bias a control terminal of the bias transistor (230) with a fixed bias voltage. The voltage regulator (210) is operable in a full-power mode and a low-power mode. The voltage regulator (210) consumes larger current in the full-power mode than in the low-power mode. At low load currents, the voltage regulator (210) is operated in the low-power mode when both the transistors in the pair of transistors (220, 230) are off, and in the full-power mode otherwise.
More Like This:
| JP5542061 | SEPIC electric supply back converter |
| JP5327486 | Converter controller |
Inventors:
VEERAMREDI SRINIVAS V (IN)
SUBRAMANIAM MURUGESH P (IN)
PARTHASARATHY HARIKRISHNA (IN)
SUBRAMANIAM MURUGESH P (IN)
PARTHASARATHY HARIKRISHNA (IN)
Application Number:
PCT/US2011/049736
Publication Date:
May 03, 2012
Filing Date:
August 30, 2011
Export Citation:
Assignee:
TEXAS INSTRUMENTS INC (US)
TEXAS INSTRUMENTS JAPAN (JP)
VEERAMREDI SRINIVAS V (IN)
SUBRAMANIAM MURUGESH P (IN)
PARTHASARATHY HARIKRISHNA (IN)
TEXAS INSTRUMENTS JAPAN (JP)
VEERAMREDI SRINIVAS V (IN)
SUBRAMANIAM MURUGESH P (IN)
PARTHASARATHY HARIKRISHNA (IN)
International Classes:
H02M3/155
Foreign References:
| US20080191679A1 | 2008-08-14 | |||
| US6859372B2 | 2005-02-22 | |||
| JPH1189249A | 1999-03-30 | |||
| US6744322B1 | 2004-06-01 |
Attorney, Agent or Firm:
FRANZ, Warren, L. et al. (Deputy General Patent CounselP.O. Box 655474, Mail Station 399, Dallas TX, US)
Download PDF: