DRIVER FOR SOLID STATE LIGHT SOURCES
First Claim
1. A method, comprising:
- receiving input power at a light driver circuit comprising a plurality of output channels, wherein the plurality of output channels comprises a first output channel and a second output channel;
setting an output current for at least a first output channel and a second output channel in the plurality of output channels by using a respective multi-pin header block, such that an output current of the first output channel of the light driver circuit is set by using a first multi-pin header block and an output current of the second output channel of the light driver circuit is set by using a second multi-pin header block; and
providing the output current of the first output channel to a first light source and the output current of the second output channel to a second light source.
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Accused Products
Abstract
Techniques are disclosed for providing an adaptive and scalable output drive current by a lighting driver, which helps mitigate issues related to binning of solid state light sources. The disclosed techniques may be implemented, for example, with the use of header pins and one or more jumpers or so-called shunt connectors. This allows for a given driver with a constant current output to provide any number of desired output drive currents on demand, by switching and/or adding and/or removing one or more shunt connectors across the appropriate header pins. The header may include any number of pin-pairs, with each pin-pair capable of receiving a shunt connector. Any number of driver topologies may be implemented with the header, such as flyback, buck, boost, buck-boost, and variants thereof.
19 Citations
20 Claims
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1. A method, comprising:
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receiving input power at a light driver circuit comprising a plurality of output channels, wherein the plurality of output channels comprises a first output channel and a second output channel; setting an output current for at least a first output channel and a second output channel in the plurality of output channels by using a respective multi-pin header block, such that an output current of the first output channel of the light driver circuit is set by using a first multi-pin header block and an output current of the second output channel of the light driver circuit is set by using a second multi-pin header block; and providing the output current of the first output channel to a first light source and the output current of the second output channel to a second light source. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A driver, comprising:
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a first converter stage configured with a first output channel to provide a current to a first light source; and a first multi-pin header block configured to set the current of the first output channel, comprising a plurality of first pin-pairs, each capable of receiving a shunt connector. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A lighting system, comprising:
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a first converter stage configured with a first output channel to provide a current to a first light source; a first multi-pin header block configured to set the current of the first output channel, and comprising a plurality of first pin-pairs, each capable of receiving a shunt connector; a second converter stage configured with a second output channel to provide a current to a second light source; and a second multi-pin header block configured to set the current of the second output channel, and comprising a plurality of second pin-pairs, each capable of receiving a shunt connector; wherein at least one of the current of the first output channel and the current of the second output channel is set by installing and/or removing one or more shunt connectors from at least one of the first multi-pin header block and the second multi-pin header block; and wherein the first converter stage and the second converter stage are implemented with a single multi-channel driver or two single-channel drivers. - View Dependent Claims (18, 19, 20)
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Specification