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Title: Systems and methods of delivering rectified voltage to a load

Abstract

A solid state light source driver circuit that operates in either a buck convertor or a boost convertor configuration is provided. The driver circuit includes a controller, a boost switch circuit and a buck switch circuit, each coupled to the controller, and a feedback circuit, coupled to the light source. The feedback circuit provides feedback to the controller, representing a DC output of the driver circuit. The controller controls the boost switch circuit and the buck switch circuit in response to the feedback signal, to regulate current to the light source. The controller places the driver circuit in its boost converter configuration when the DC output is less than a rectified AC voltage coupled to the driver circuit at an input node. The controller places the driver circuit in its buck converter configuration when the DC output is greater than the rectified AC voltage at the input node.

Inventors:
Issue Date:
Research Org.:
Osram Sylvania Inc., Wilmington, MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1498493
Patent Number(s):
10186981
Application Number:
15/092,688
Assignee:
Osram Sylvania Inc. (Wilmington, MA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING
DOE Contract Number:  
EE0000611
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Apr 07
Country of Publication:
United States
Language:
English

Citation Formats

Palmer, Fred. Systems and methods of delivering rectified voltage to a load. United States: N. p., 2019. Web.
Palmer, Fred. Systems and methods of delivering rectified voltage to a load. United States.
Palmer, Fred. Tue . "Systems and methods of delivering rectified voltage to a load". United States. https://www.osti.gov/servlets/purl/1498493.
@article{osti_1498493,
title = {Systems and methods of delivering rectified voltage to a load},
author = {Palmer, Fred},
abstractNote = {A solid state light source driver circuit that operates in either a buck convertor or a boost convertor configuration is provided. The driver circuit includes a controller, a boost switch circuit and a buck switch circuit, each coupled to the controller, and a feedback circuit, coupled to the light source. The feedback circuit provides feedback to the controller, representing a DC output of the driver circuit. The controller controls the boost switch circuit and the buck switch circuit in response to the feedback signal, to regulate current to the light source. The controller places the driver circuit in its boost converter configuration when the DC output is less than a rectified AC voltage coupled to the driver circuit at an input node. The controller places the driver circuit in its buck converter configuration when the DC output is greater than the rectified AC voltage at the input node.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}

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Works referenced in this record:

Electronic ballast
patent-application, January 2003