DRIVING APPARATUS FOR LED CHIPS OF DIFFERENT SPECIFICATIONS
First Claim
1. A driving apparatus for driving LED chips of different specifications, wherein one of the LED chips is connected to the driving apparatus, comprising:
- a driving unit electrically connected to a power source and the LED chip, wherein the driving unit receives power of the power source, and provides a driving voltage and a driving current to the LED chip;
a voltage measuring unit electrically connected to the driving unit, wherein the voltage measuring unit measures the driving voltage; and
a feedback control module electrically connected to the voltage measuring unit and the driving unit, wherein the feedback control module is stored with a default power to control the driving unit to regulate the driving current to match a rated current of the LED chip according to the driving voltage measured by the voltage measuring unit and the default power.
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Accused Products
Abstract
A driving apparatus for LED chips includes: a driving unit, a voltage measuring unit, and a feedback control module. The driving unit provides a driving voltage and a driving current to a LED chip; the voltage measuring unit measures the driving voltage; the feedback control module is built-in with a default power; According to the driving voltage measured by the voltage measuring unit and the default power, the feedback control module controls the driving unit to maintain the driving current at a working current, wherein the working current matches the rated current of the LED chip. Whereby, the driving apparatus could drive LED chips of different specifications.
7 Citations
12 Claims
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1. A driving apparatus for driving LED chips of different specifications, wherein one of the LED chips is connected to the driving apparatus, comprising:
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a driving unit electrically connected to a power source and the LED chip, wherein the driving unit receives power of the power source, and provides a driving voltage and a driving current to the LED chip; a voltage measuring unit electrically connected to the driving unit, wherein the voltage measuring unit measures the driving voltage; and a feedback control module electrically connected to the voltage measuring unit and the driving unit, wherein the feedback control module is stored with a default power to control the driving unit to regulate the driving current to match a rated current of the LED chip according to the driving voltage measured by the voltage measuring unit and the default power. - View Dependent Claims (2, 3, 4, 5)
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6. A driving apparatus for driving a plurality of LED chips of different specifications, wherein one of the LED chips is connected to the driving apparatus, comprising:
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a driving unit electrically connected to a power source and the LED chip, wherein the driving unit receives power of the power source, and provides a driving voltage and a driving current to the LED chip; a voltage measuring unit electrically connected to the driving unit, wherein the voltage measuring unit measures the driving voltage; and a feedback control module electrically connected to the voltage measuring unit and the driving unit, wherein the feedback control module is stored with a plurality of reference voltages to control module controls the driving unit to regulate the driving current to match the rated current of the LED chip according to the reference voltage corresponding to the driving voltage measured by the voltage measuring unit. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification