Last gasp hold-up circuit using adaptive constant on time control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 10, 2016
Grant Date -
Jul 16, 2015
app pub date -
Jan 12, 2015
filing date -
Mar 16, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hold-up circuit coupled to a first node to receive an input voltage and to provide a hold-up voltage includes an inductor, a constant on-time buck-boost control circuit configured to drive a high-side power switch and a low-side power switch to operate in a buck mode and a boost mode of operation, and an energy storage capacitor. When the input voltage is greater than a predetermined threshold, the buck-boost control circuit is configured to drive the power switches in the boost mode to charge the capacitor to a capacitor voltage greater than the input voltage. When the input voltage is less than the predetermined threshold, the buck-boost control circuit is configured to drive the power switches in the buck mode to supply the energy stored on the capacitor to the inductor to provide a regulated voltage less than the capacitor voltage as the hold-up voltage to the first node.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully