Solid-state lighting apparatus and methods using switched energy storage
First Claim
Patent Images
1. An apparatus comprising:
- at least one LED;
at least one charge storage device; and
a switching circuit configured to route current through the at least one LED to the at least one charge storage device for a first state of an applied voltage and to discharge the at least one charge storage device via the at least one LED for a second state of the applied voltage, wherein the switching circuit comprises;
a first switch coupled between a first terminal of the at least one LED and a first terminal of the at least one charge storage device; and
a second switch coupled between a second terminal of the at least one LED and the first terminal of the at least on charge storage device.
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Abstract
An apparatus includes at least one LED, at least one charge storage device and a switching circuit configured to route current through the least one LED to the at least one charge storage device for a first state of an applied voltage and to discharge the at least one charge storage device via the at least one LED for a second state of the applied voltage. The apparatus may further include a current control circuit coupled in series with the at least one LED.
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Citations
23 Claims
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1. An apparatus comprising:
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at least one LED; at least one charge storage device; and a switching circuit configured to route current through the at least one LED to the at least one charge storage device for a first state of an applied voltage and to discharge the at least one charge storage device via the at least one LED for a second state of the applied voltage, wherein the switching circuit comprises; a first switch coupled between a first terminal of the at least one LED and a first terminal of the at least one charge storage device; and a second switch coupled between a second terminal of the at least one LED and the first terminal of the at least on charge storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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at least one LED; at least one charge storage device; and a switching circuit configured to route current through the at least one LED to the at least one charge storage device for a first state of an applied voltage and to discharge the at least one charge storage device via the at least one LED for a second state of the applied voltage, wherein the switching circuit comprises; a first diode coupled between a first terminal of the at least one LED and a first terminal of the at least one charge storage device; and a second diode coupled between a second terminal of the at least one LED and the first terminal of the at least on charge storage device.
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12. An apparatus comprising:
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a plurality of lighting circuits coupled each lighting circuit comprising; at least one LED; at least one charge storage device; and a switching circuit configured to route current through the least one LED to the at least one charge storage device for a first state of an applied voltage and to discharge the at least one charge storage device via the at least one LED for a second state of the applied voltage, wherein the switching circuit comprises; a first diode coupled between a first terminal of the at least one LED and a first terminal of the at least one charge storage device; and a second diode coupled between a second terminal of the at least one LED and the first terminal of the at least on charge storage device. - View Dependent Claims (13, 14)
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15. An apparatus comprising:
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at least one LED; at least one charge storage device; a first switch coupled between a first terminal of the at least one LED and a first terminal of the at least one charge storage device; and a second switch coupled between a second terminal of the at least one LED and the first terminal of the at least one charge storage device, wherein the first and second switches are configured to route current through the least one LED to the at least one charge storage device for a first state of a voltage applied to the first terminal of the at least one LED and to discharge the at least one charge storage device via the at least one LED for a second state of the applied voltage. - View Dependent Claims (16, 17, 18, 19)
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20. A controller for a lighting apparatus comprising at least one LED, the controller comprising:
a switching circuit configured to route current through the at least one LED to at least one charge storage device for a first state of an applied voltage and to discharge the at least one charge storage device via the at least one LED for a second state of the applied voltage, wherein the switching circuit comprises; a first switch configured to be coupled between a first terminal of the at least one LED and a first terminal of the at least one charge storage device; and a second switch configured to be coupled between a second terminal of the at least one LED and the first terminal of the at least one charge storage device. - View Dependent Claims (21, 22, 23)
Specification