Invention Grant
US09247617B2 Control loop with a variable time constant for power factor correction for a load circuit comprising light-emitting means
有权
具有用于包括发光装置的负载电路的功率因数校正的可变时间常数的控制回路
- Patent Title: Control loop with a variable time constant for power factor correction for a load circuit comprising light-emitting means
- Patent Title (中): 具有用于包括发光装置的负载电路的功率因数校正的可变时间常数的控制回路
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Application No.: US14427217Application Date: 2013-09-10
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Publication No.: US09247617B2Publication Date: 2016-01-26
- Inventor: Christoph Vonach , Hans Auer
- Applicant: TRIDONIC GMBH & CO KG
- Applicant Address: AT Dornbirn
- Assignee: TRIDONIC GMBH & CO KG
- Current Assignee: TRIDONIC GMBH & CO KG
- Current Assignee Address: AT Dornbirn
- Agency: Volpe and Koenig, P.C.
- Priority: DE102012216047 20120911
- International Application: PCT/AT2013/000146 WO 20130910
- International Announcement: WO2014/040097 WO 20140320
- Main IPC: H05B37/02
- IPC: H05B37/02 ; H05B33/08
Abstract:
The invention proposes a method for operating an actively clocked PFC circuit (2) having a directly or indirectly connected load circuit (5) at the output of the PFC circuit (2), wherein the load circuit (5) has at least one luminous means, in particular one or more LEDs (4), wherein the PFC circuit (2) is controlled by a PFC controller (30) in such a manner that the PFC controller (30) determines a control parameter, in particular a switched-on time period (ton), for the clocking of the PFC circuit (2) on the basis of at least one first controller setting (RE_fast) and one second controller setting (RE_slow), wherein the time of a change from the first controller setting (RE_fast) to the second controller setting (RE_slow) is dependent on the directly or indirectly determined average value of the control parameter, in particular the switched-on time period (ton).
Public/Granted literature
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