Title:
ADJUSTABLE CONSTANT CURRENT SOURCE WITH CONTINUOUS CONDUCTION MODE ("CCM") AND DISCONTINUOUS CONDUCTION MODE ("DCM") OPERATION
Document Type and Number:
WIPO Patent Application WO/2010/039588
Kind Code:
A3
Abstract:
A converter system and method of operating a converter system are disclosed. The converter system comprises a converter power stage that can operate in a Discontinuous Conduction Mode (DCM) in a range of output currents and a Continuous Conduction Mods (CCM) hi another range of output currents, The converter power stage includes at least an inductor with an inductor value and & control switch, The converter power stage provides an average current. A current controller is coupled to the converter power stage. When the converter power stage operates in DCM, She converter power stage provides the average current and the current controller is configured to measure the inductor value of the inductor. Furthermore, the current controller can also he configured to measure an input-to-output conversion ratio from the converter power stage.
Inventors:
MELANSON JOHN LAURENCE (US)
Application Number:
PCT/US2009/058298
Publication Date:
May 27, 2010
Filing Date:
September 25, 2009
Export Citation:
Assignee:
CIRRUS LOGIC INC
International Classes:
H02M3/156; H02M3/158; H05B44/00
Domestic Patent References:
| WO2007141741A1 | 2007-12-13 | |||
| WO2007139975A1 | 2007-12-06 |
Foreign References:
| US20060238174A1 | 2006-10-26 | |||
| US20080116818A1 | 2008-05-22 |
Attorney, Agent or Firm:
LIN, Steven (Inc.Assistant General Counsel,2901 Via Fortun, Austin TX, US)
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