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US 2017/0303358 A1Published application
A Smart Lighting System
AssigneeDiodes Incorporated
InventorAdrian Wang
Life of this patent
Estimating the term…
Abstract
A multiple channel current regulator is configured to deliver a maximum current to a load associated with the channel in a lighting system. Different channels may have a different maximum current and the ratio among the maximum currents is fixed. In operation, the current of each channel can be individually modulated by a pulse stream that controls the current that flows to the load.
Claims18
An integrated circuit;
- comprising:
- a first current supply circuit connected to a first output pin, configured to output a first maximum current;
- a second current supply circuit connected to a second output pin, configured to output a second maximum current;
- and
- the second maximum current less than the first maximum current and being a fixed fraction of the first maximum current.
2 more elements
An integrated circuit;
- comprising:
- a first current supply circuit connected to a first output pin, configured to output a first maximum current;
- a second current supply circuit connected to a second output pin configured to output a second maximum current;
- a third current supply circuit connected to a third output pin configured to output a third maximum current;
- a fourth current supply circuit connected to a fourth output pin configured to output a fourth maximum current;
- and
- the fourth maximum current being a fraction a of the third maximum current, a fraction b of the second maximum, and a fraction c of the first maximum current;
- and a, b, and c not all equal to one.
5 more elements
A system comprising:
- an integrated circuit having a first output pin and a second output pin;
- a first LED light source external to the integrated circuit, coupled to the first output pin of the integrated circuit;
- a second LED light source external to the integrated circuit, coupled to the first output pin of the integrated circuit;
- the integrated circuit including a first current supply circuit and a second current supply circuit, the first current supply circuit configured to flow a first maximum current to the first output pin, the second current supply circuit, configured to flow a second maximum current to the second output pin, and
- the first maximum current being greater than the second maximum current.
2 more elements
Dependencies are inferred from the claim text.