Title:
INPUT CURRENT SHAPING FOR TRANSITION AND DISCONTINUOUS MODE POWER CONVERTER
Document Type and Number:
WIPO Patent Application WO/2012/109536
Kind Code:
A3
Abstract:
A power converter (920) operable to draw an input current that is in phase with an input voltage (140) of the power converter and proportional to a voltage of the input voltage of the power converter includes a drive switch (44), a waveform generator (126) and a current shaping circuit (120). The drive switch is connected between an input inductor and ground and draws current through the input inductor when turned on. The current shaping circuit provides an on- time of the drive switch for a next cycle of the drive switch as a function of an input current decay time, a switching period of the waveform generator, and an output voltage of the power converter.
Inventors:
ZIEGLER SILVIO (CH)
FENO IVAN (CH)
FENO IVAN (CH)
Application Number:
PCT/US2012/024643
Publication Date:
November 01, 2012
Filing Date:
February 10, 2012
Export Citation:
Assignee:
POWER ONE INC (US)
ZIEGLER SILVIO (CH)
FENO IVAN (CH)
ZIEGLER SILVIO (CH)
FENO IVAN (CH)
International Classes:
G05F1/70; H02M1/42; H02M3/158
Foreign References:
| US20100110593A1 | 2010-05-06 | |||
| EP1826896A1 | 2007-08-29 | |||
| US20100109615A1 | 2010-05-06 | |||
| EP1887681A1 | 2008-02-13 | |||
| US20050276294A1 | 2005-12-15 |
Attorney, Agent or Firm:
SHOUSE, Emily A. (Roundabout Plaza1600 Division Street, Suite 50, Nashville Tennessee, US)
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