LED DRIVE CIRCUIT, PHASE CONTROL DIMMER, LED ILLUMINATION FIXTURE, LED ILLUMINATION DEVICE, AND LED ILLUMINATION SYSTEM
First Claim
Patent Images
1. An LED drive circuit in which an alternating voltage is input and an LED is driven, and which is capable of connecting to a phase control dimmer;
- the LED drive circuit comprising;
a current extractor for continuing to allow current to flow into said phase control dimmer so that a phase control element inside said phase control dimmer does not switch off before said alternating voltage reaches 0 V after the phase control element inside said phase control dimmer switches on and said LED emits light.
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Abstract
An LED drive circuit for driving an LED by input of an alternating voltage, the LED drive circuit being capable of connecting to a phase control dimmer. The LED drive circuit is provided with a current extractor for continuing to allow current to flow into the phase control dimmer so that a phase control element inside the phase control dimmer does not switch off before the alternating voltage reaches 0 V after the phase control element inside the phase control dimmer switches on and the LED emits light.
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Citations
23 Claims
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1. An LED drive circuit in which an alternating voltage is input and an LED is driven, and which is capable of connecting to a phase control dimmer;
- the LED drive circuit comprising;
a current extractor for continuing to allow current to flow into said phase control dimmer so that a phase control element inside said phase control dimmer does not switch off before said alternating voltage reaches 0 V after the phase control element inside said phase control dimmer switches on and said LED emits light. - View Dependent Claims (2, 3, 4, 5, 6)
- the LED drive circuit comprising;
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7. A phase control dimmer capable of connecting to an LED drive circuit in which an alternating voltage is input and an LED is driven;
- the phase control dimmer comprising;
a phase control element; and a force-off unit for forcing said phase control element to switch off before said alternating voltage reaches 0 V after said phase control element switches on and said LED emits light. - View Dependent Claims (8, 9, 10, 11, 12)
- the phase control dimmer comprising;
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13. An LED illumination fixture comprising:
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an LED drive circuit; and an LED connected to the output side of said LED drive circuit; wherein said LED drive circuit is an LED drive circuit in which an alternating voltage is input and an LED is driven, and which is capable of connecting to a phase control dimmer;
the LED drive circuit comprising;a current extractor for continuing to allow current to flow into said phase control dimmer so that a phase control element inside said phase control dimmer does not switch off before said alternating voltage reaches 0 V after the phase control element inside said phase control dimmer switches on and said LED emits light.
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14. An LED illumination fixture comprising:
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an LED; and an LED flicker reduction unit for reducing flickering of said LED due to switching off of a phase control element inside said phase control dimmer before an alternating voltage inputted to said phase control dimmer reaches 0 V after the phase control element inside the phase control dimmer switches on and said LED emits light.
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15. An LED illumination device comprising:
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an LED drive circuit; wherein said LED drive circuit is an LED drive circuit in which an alternating voltage is input and an LED is driven, and which is capable of connecting to a phase control dimmer;
the LED drive circuit comprising;a current extractor for continuing to allow current to flow into said phase control dimmer so that a phase control element inside said phase control dimmer does not switch off before said alternating voltage reaches 0 V after the phase control element inside said phase control dimmer switches on and said LED emits light.
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16. An LED illumination device comprising:
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an LED illumination fixture; wherein said LED illumination fixture is an illumination fixture comprising; an LED drive circuit; and an LED connected to the output side of said LED drive circuit; wherein said LED drive circuit is an LED drive circuit in which an alternating voltage is input and an LED is driven, and which is capable of connecting to a phase control dimmer;
the LED drive circuit comprising;a current extractor for continuing to allow current to flow into said phase control dimmer so that a phase control element inside said phase control dimmer does not switch off before said alternating voltage reaches 0 V after the phase control element inside said phase control dimmer switches on and said LED emits light.
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17. An LED illumination device comprising:
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an LED illumination fixture; wherein said LED illumination fixture is an illumination fixture comprising; an LED; and an LED flicker reduction unit for reducing flickering of said LED due to switching off of a phase control element inside said phase control dimmer before an alternating voltage inputted to said phase control dimmer reaches 0 V after the phase control element inside the phase control dimmer switches on and said LED emits light.
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18. An LED illumination system comprising:
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an LED illumination fixture; and a phase control dimmer connected to the input side of the LED illumination fixture; wherein said LED illumination fixture is an illumination fixture comprising; an LED drive circuit; and an LED connected to the output side of said LED drive circuit; wherein said LED drive circuit is an LED drive circuit in which an alternating voltage is input and an LED is driven, and which is capable of connecting to a phase control dimmer;
the LED drive circuit comprising;a current extractor for continuing to allow current to flow into said phase control dimmer so that a phase control element inside said phase control dimmer does not switch off before said alternating voltage reaches 0 V after the phase control element inside said phase control dimmer switches on and said LED emits light.
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19. An LED illumination system comprising:
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an LED illumination fixture; and a phase control dimmer connected to the input side of the LED illumination fixture; wherein said LED illumination fixture is an illumination fixture comprising; an LED; and an LED flicker reduction unit for reducing flickering of said LED due to switching off of a phase control element inside said phase control dimmer before an alternating voltage inputted to said phase control dimmer reaches 0 V after the phase control element inside the phase control dimmer switches on and said LED emits light.
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20. An LED illumination system comprising:
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an LED illumination device; and a phase control dimmer connected to the input side of the LED illumination device; wherein said LED illumination device is an LED illumination device comprising; an LED drive circuit; wherein said LED drive circuit is an LED drive circuit in which an alternating voltage is input and an LED is driven, and which is capable of connecting to a phase control dimmer;
the LED drive circuit comprising;a current extractor for continuing to allow current to flow into said phase control dimmer so that a phase control element inside said phase control dimmer does not switch off before said alternating voltage reaches 0 V after the phase control element inside said phase control dimmer switches on and said LED emits light.
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21. An LED illumination system comprising:
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an LED illumination device; and a phase control dimmer connected to the input side of the LED illumination device; wherein said LED illumination device is an LED illumination device comprising; an LED illumination fixture; wherein said LED illumination fixture is an illumination fixture comprising; an LED drive circuit; and an LED connected to the output side of said LED drive circuit; wherein said LED drive circuit is an LED drive circuit in which an alternating voltage is input and an LED is driven, and which is capable of connecting to a phase control dimmer;
the LED drive circuit comprising;a current extractor for continuing to allow current to flow into said phase control dimmer so that a phase control element inside said phase control dimmer does not switch off before said alternating voltage reaches 0 V after the phase control element inside said phase control dimmer switches on and said LED emits light.
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22. An LED illumination system comprising:
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an LED illumination device; and a phase control dimmer connected to the input side of the LED illumination device; wherein said LED illumination device is an LED illumination device comprising; an LED illumination fixture; wherein said LED illumination fixture is an illumination fixture comprising; an LED; and an LED flicker reduction unit for reducing flickering of said LED due to switching off of a phase control element inside said phase control dimmer before an alternating voltage inputted to said phase control dimmer reaches 0 V after the phase control element inside the phase control dimmer switches on and said LED emits light.
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23. An LED illumination system comprising:
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a phase control dimmer connected to the input side of an LED illumination fixture or an LED illumination device; wherein said phase control dimmer is a phase control dimmer capable of connecting to an LED drive circuit in which an alternating voltage is input and an LED is driven;
the phase control dimmer comprising;a phase control element; and a force-off unit for forcing said phase control element to switch off before said alternating voltage reaches 0 V after said phase control element switches on and said LED emits light.
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Specification