Enable and disable of diode emulation in a DC/DC converter

Details Enable and disable of diode emulation in a DC/DC converter Enable and disable of diode emulation in a DC/DC converter

2007-04-17

2007-04-17

Sterrett, Jeffrey (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S283000

Reexamination Certificate

active

10854358

ABSTRACT:
A method of enabling and disabling diode emulation for a DC/DC converter which generates an output voltage including detecting a diode emulation request signal indicative of enabling or disabling diode emulation and delaying enabling or disabling diode emulation until after the output voltage begins changing. Diode emulation is enabled while the output voltage is decreasing or has reached a predetermined level and an optional delay may be included. Diode emulation is disabled while the voltage is increasing. A diode emulation control circuit includes a first circuit that determines when the output voltage is changing and a second circuit that selectively enables or disables diode emulation in response to a diode emulation enable/disable signal after the output voltage begins to change.

REFERENCES:
patent: 5077490 (1991-12-01), Brown
patent: 5373435 (1994-12-01), Jayaraman et al.
patent: 5502632 (1996-03-01), Warmerdam et al.
patent: 6643145 (2003-11-01), Harrison
patent: 6815936 (2004-11-01), Wiktor et al.
patent: 6894465 (2005-05-01), Sutardja et al.

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