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US 2016/0113077 A1Published application
Led drive circuit
AssigneesCitizen Holdings Co., Ltd., Citizen Electronics Co., Ltd.
InventorTakashi Akiyama
Life of this patent
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Abstract
An LED drive circuit includes a rectification circuit configured to rectify an alternating-current voltage that is input via a dimmer circuit, a delay circuit having a switch, and a light emitting unit including an LED array including LEDs connected in series, wherein the delay circuit turns on the switch when a predetermined time elapses after the alternating-current current is input, and the rectification circuit and the LED array are directly connected when the switch is on.
Claims10
An LED drive circuit comprising:
- a rectification circuit configured to rectify an alternating-current voltage that is input via a dimmer circuit;
- a delay circuit having a switch;
- and
- a light emitting unit including an LED array including LEDs connected in series, wherein
- the delay circuit turns on the switch when a predetermined time elapses after the alternating-current current is input, and
- the rectification circuit and the LED array are directly connected when the switch is on.
3 more elements
Dependencies are inferred from the claim text.