Invention Grant
- Patent Title: Forward converter having a primary-side current sense circuit
- Patent Title (中): 正转换器具有初级侧电流检测电路
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Application No.: US13834153Application Date: 2013-03-15
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Publication No.: US09232574B2Publication Date: 2016-01-05
- Inventor: Dragan Veskovic
- Applicant: Lutron Electronics Co., Inc.
- Applicant Address: US PA Coopersburg
- Assignee: LUTRON ELECTRONICS CO., INC.
- Current Assignee: LUTRON ELECTRONICS CO., INC.
- Current Assignee Address: US PA Coopersburg
- Agency: Condo Roccia Koptiw LLP
- Main IPC: H05B37/02
- IPC: H05B37/02 ; H05B33/08 ; H02M3/335

Abstract:
A load control device for controlling the amount of power delivered to an electrical load (e.g., an LED light source) comprises an isolated forward converter comprising a transformer, a controller, and a current sense circuit operable to receive a sense voltage representative of a primary current conducting through to a primary winding of the transformer. The primary winding is coupled in series with a semiconductor switch, while a secondary winding is adapted to be operatively coupled to the load. The forward converter comprises a sense resistor coupled in series with the primary winding for producing the sense voltage that is representative of the primary current. The current sense circuit receives the sense voltage and averages the sense voltage when the semiconductor switch is conductive, so as to generate a load current control signal that is representative of a real component of a load current conducted through the load.
Public/Granted literature
- US20140009084A1 Forward Converter Having a Primary-Side Current Sense Circuit Public/Granted day:2014-01-09
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