High-efficiency two-step DC-to-DC converter

Details High-efficiency two-step DC-to-DC converter High-efficiency two-step DC-to-DC converter

2007-06-19

2007-06-19

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

Reexamination Certificate

active

11114060

ABSTRACT:
A two-step DC-to-DC converter comprises a first converter stage for converting a first voltage to a second voltage, and a second converter stage for converting the second voltage to an output voltage. The first converter stage uses a MOSFET or normally-off JFET to serve as a high-side switch, and the second converter stage comprises a multi-phase modulator using a normally-on JFET to serve as a high-side switch, thereby improving the efficiency of the two-step DC-to-DC converter.

REFERENCES:
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patent: 6839252 (2005-01-01), Tai et al.
patent: 6876190 (2005-04-01), Tai et al.
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patent: 6960905 (2005-11-01), Chen et al.
patent: 7064533 (2006-06-01), Hsu

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