Invention Grant
- Patent Title: Feedforward circuit for fast analog dimming in LED drivers
- Patent Title (中): LED驱动器中快速模拟调光的前馈电路
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Application No.: US14097027Application Date: 2013-12-04
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Publication No.: US09148918B2Publication Date: 2015-09-29
- Inventor: Giovanni Capodivacca
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: H05B37/00
- IPC: H05B37/00 ; H05B33/08 ; H02M3/158

Abstract:
Methods, devices, and circuits are disclosed delivering a first level of output current to one or more loads in a buck-boost converter comprising an inductor. The methods, devices, and circuits may further be disclosed applying, in response to an indication of an altered output current requirement to one or more loads in a buck-boost converter comprising an inductor, a change in a supplied reference voltage to one or more elements including a feedforward control element, wherein applying the change in the supplied reference voltage to the feedforward control element causes an adjustment of the output current from the first level to a second level corresponding to the altered current output requirement.
Public/Granted literature
- US20150156834A1 FEEDFORWARD CIRCUIT FOR FAST ANALOG DIMMING IN LED DRIVERS Public/Granted day:2015-06-04
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