Predictively turning off a charge pump supplying voltage for overdriving gates of the power switch header in a microprocessor with power gating
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 12, 2016
Grant Date -
Mar 19, 2015
app pub date -
Sep 13, 2013
filing date -
Sep 13, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A mechanism is provided for an integrated circuit with power gating. A power header switch is configured to connect and disconnect a circuit to a common voltage source. The circuit is powered off circuit when disconnected. A multiplexer selectably connects a charge pump or common voltage source to a gate terminal of the power header switch. The charge pump provides a higher voltage to the gate terminal than the common voltage source. A controller is configured to control a selection of the multiplexer to the charge pump and the common voltage source. The controller is configured to disconnect the charge pump from the gate terminal and connect the common voltage source to the gate terminal of the power header switch in response to conditions: a prediction of a demand core power-up request, an increase in a gate leakage current, and/or a reduction in temperature of the powered off circuit.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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