发明授权
- 专利标题: Feedforward circuit for fast analog dimming in LED drivers
- 专利标题(中): LED驱动器中快速模拟调光的前馈电路
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申请号: US14097027申请日: 2013-12-04
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公开(公告)号: US09148918B2公开(公告)日: 2015-09-29
- 发明人: Giovanni Capodivacca
- 申请人: Infineon Technologies AG
- 申请人地址: DE Neubiberg
- 专利权人: Infineon Technologies AG
- 当前专利权人: Infineon Technologies AG
- 当前专利权人地址: DE Neubiberg
- 代理机构: Shumaker & Sieffert, P.A.
- 主分类号: H05B37/00
- IPC分类号: H05B37/00 ; H05B33/08 ; H02M3/158
摘要:
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.
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