Extending the voltage operating range of boost regulators

Details Extending the voltage operating range of boost regulators Extending the voltage operating range of boost regulators

2006-11-28

2008-12-30

Nguyen, Matthew V (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S222000

Reexamination Certificate

active

07471071

ABSTRACT:
One embodiment of the invention is a hybrid boost regulator that includes a conventional boost regulator chip that operates when its input voltage is above 2.5 volts and a pre-boost circuit that operates when its input voltage is above 1 volt. A single 1.5 volt battery may be used to power the hybrid boost regulator. The pre-boost circuit is connected to the voltage input terminal of the boost regulator chip. The pre-boost circuit boosts the battery voltage (e.g., 1.5v) at an output terminal of the hybrid boost regulator to approximately the minimum operating voltage (e.g., 2.5v) of the boost regulator chip. Since this pre-boosted voltage is applied to the voltage input terminal of the boost regulator chip, the boost regulator chip will become operational when the ramping output voltage of the hybrid boost regulator exceeds about 2.5 volts. Once the boost regulator chip is operational, the pre-boost circuit is then turned off, and the boost regulator chip runs off the 1.5 volt power supply to ramp up the output voltage to the full regulated voltage.

REFERENCES:
patent: 5808884 (1998-09-01), Teggatz et al.
patent: 6897637 (2005-05-01), Chen et al.
patent: 6937487 (2005-08-01), Bron
patent: 7199565 (2007-04-01), Demolli
patent: 7317302 (2008-01-01), Collins
patent: 7394231 (2008-07-01), Flatness et al.

Affiliated with

Also associated with

Rating

Extending the voltage operating range of boost regulators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Extending the voltage operating range of boost regulators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extending the voltage operating range of boost regulators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4022473