DC-DC converter

Details DC-DC converter DC-DC converter

2007-07-13

2010-02-02

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S284000, C323S326000

Reexamination Certificate

active

07656143

ABSTRACT:
To present a DC-DC converter efficient in conversion and not requiring an external diode. The DC-DC converter includes a main NMOS transistor FET1as a main switching device, a driver DVH1for driving a gate terminal of the main NMOS transistor FET1, a capacitor C2connected between a source terminal of the main NMOS transistor FET1and a power source terminal of the driver DVH1, and an NMOS transistor FET3connected between a route leading to an input power source and the power source terminal of the driver DVH1. The NMOS transistor FET3does not conduct when the main NMOS transistor FET1conducts, and conducts when the main NMOS transistor FET1does not conduct.

REFERENCES:
patent: 6069471 (2000-05-01), Nguyen
patent: 7098639 (2006-08-01), Natsume et al.
patent: 2002/0190701 (2002-12-01), Miyazaki
patent: 7-222439 (1995-08-01), None
patent: 2004-173460 (2004-06-01), None
Vitezlav Benda et al., “Power Semiconductor Devices Theory and Applications”, John Wiley&Sons, 1999.
B. Jayant Baliga, “Power Semiconductor Devices”, PWS Publishing Company, 1996.

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