Invention Grant
US08947016B2 Transformer-isolated LED lighting circuit with secondary-side dimming control
有权
变压器隔离型LED照明电路采用二次侧调光控制
- Patent Title: Transformer-isolated LED lighting circuit with secondary-side dimming control
- Patent Title (中): 变压器隔离型LED照明电路采用二次侧调光控制
-
Application No.: US13537301Application Date: 2012-06-29
-
Publication No.: US08947016B2Publication Date: 2015-02-03
- Inventor: John L. Melanson , Eric King
- Applicant: John L. Melanson , Eric King
- Applicant Address: US TX Austin
- Assignee: Cirrus Logic, Inc.
- Current Assignee: Cirrus Logic, Inc.
- Current Assignee Address: US TX Austin
- Agency: Mitch Harris, Atty at Law, LLC
- Agent Andrew M. Harris
- Main IPC: H05B37/02
- IPC: H05B37/02 ; H05B33/08
Abstract:
A transformer isolated LED lighting circuit supplies current from a secondary-side storage capacitor to one or more LED strings in conformity with one or more dimming values. The dimming values are communicated through the transformer by patterns or codes provided in pulses of a power converter circuit that charges the storage capacitor from the primary side of the transformer, or alternatively by a special modulated signal provided in addition to the switching pulses.
Public/Granted literature
- US20130002156A1 TRANSFORMER-ISOLATED LED LIGHTING CIRCUIT WITH SECONDARY-SIDE DIMMING CONTROL Public/Granted day:2013-01-03
Information query
