Method and circuit for power factor correction
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 20, 2015
Grant Date -
May 31, 2012
app pub date -
Jul 7, 2010
filing date -
Jul 23, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and circuit for correcting a power factor in an alternating current/direct current power transformer. The circuit has an inductor fed by a rectified AC voltage, and a switch by which the inductor can be charged and discharged by closing and opening the switch, and further has a diode by which the discharge current of the inductor is fed to the output of the circuit. During the discharge phase, a voltage corresponding to the output voltage is measured, and the measured values are stored. It is further determined when the discharge current reaches or crosses the zero line at the end of a discharge phase. Switch-on and switch-off signals for actuating the switch are generated by analyzing the information determined. The switch should not be switched on again until a particular minimum switch-off time has been reached.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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