DIMMER JITTER CORRECTION
First Claim
1. A controller for controlling a lamp driver supplied with an output of a dimmer, said controller comprising:
- enabling means configured to enable said lamp driver at a start time and disable said lamp driver before the end of an active period of said dimmer.
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Accused Products
Abstract
A controller and a method for controlling lamp drivers such as e.g. LED drivers for lamps having a fast response behavior such as e.g. LED lamps are proposed. They enable to substantially reduce or prevent a visible luminance flicker at such lamps when dimming the lamps with a conventional dimmer such as e.g. a phase cut dimmer. This can be achieved by switching off the lamp driver prematurely in such a way that a time jitter of a dimmer switching does not influence an on-time of the lamp driver. No bulky or expensive filters or capacitors are needed. Thus, a space-switch saving and/or inexpensive construction is enabled.
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Citations
17 Claims
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1. A controller for controlling a lamp driver supplied with an output of a dimmer, said controller comprising:
enabling means configured to enable said lamp driver at a start time and disable said lamp driver before the end of an active period of said dimmer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of controlling a lamp driver supplied with an output of a dimmer, said method comprising:
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enabling said lamp driver at a start time; and disabling said lamp driver before the end of an active period of said dimmer.
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17. (canceled)
Specification