Light driving apparatus and driving method therefor
First Claim
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1. A light driving apparatus comprising:
- a driving unit supplying driving power to a light emitting device according to controlling to drive the light emitting device; and
a general-purpose dimming controlling unit controlling dimming of the light emitting device by converting a range of a brightness control signal of an external dimmer into a first voltage range according to a preset ratio to control the supplying of the driving power from the driving unit,wherein the general-purpose dimming controlling unit converts a voltage range or an impedance range of the brightness control signal of the external dimmer into the first voltage range,wherein the general-purpose dimming controlling unit includes;
a voltage conversion unit converting the voltage range or the impedance range of the brightness control signal of the external dimmer into the first voltage range; and
a controlling unit recognizing that a type of corresponding dimmer according to the first voltage range from the voltage conversion unit is a source dimmer or a sink dimmer, to provide a dimming signal according to the brightness control signal based on the dimmer type.
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Abstract
There are provided a light driving apparatus capable of being commonly used in various types of dimmers, and a driving method therefor. The light driving apparatus includes: a driving unit supplying driving power to a light emitting device according to controlling to drive the light emitting device; and a general-purpose dimming controlling unit controlling dimming of the light emitting device by converting a range of a brightness control signal of an external dimmer into a first voltage range according to a preset ratio to control the supply of power from the driving unit.
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7 Claims
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1. A light driving apparatus comprising:
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a driving unit supplying driving power to a light emitting device according to controlling to drive the light emitting device; and a general-purpose dimming controlling unit controlling dimming of the light emitting device by converting a range of a brightness control signal of an external dimmer into a first voltage range according to a preset ratio to control the supplying of the driving power from the driving unit, wherein the general-purpose dimming controlling unit converts a voltage range or an impedance range of the brightness control signal of the external dimmer into the first voltage range, wherein the general-purpose dimming controlling unit includes; a voltage conversion unit converting the voltage range or the impedance range of the brightness control signal of the external dimmer into the first voltage range; and a controlling unit recognizing that a type of corresponding dimmer according to the first voltage range from the voltage conversion unit is a source dimmer or a sink dimmer, to provide a dimming signal according to the brightness control signal based on the dimmer type. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification