DRIVING DEVICE FOR A LIGHT EMITTING DIODE CIRCUIT AND RELATED LIGHTING DEVICE
First Claim
1. A driving device for a light emitting diode (LED) circuit comprising:
- a power receiving terminal coupled to a switch for receiving a direct current (DC) power source that supplies for the LED circuit and the driving device via the switch;
a capacitor coupled to the power receiving terminal for storing energy; and
a light adjusting unit coupled to the power receiving terminal and the capacitor for generating a control signal according the status of the switch when a voltage on the capacitor decreases and does not decrease below a first threshold voltage, for adjusting light intensity of the LED circuit.
1 Assignment
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Accused Products
Abstract
A driving device for an LED circuit includes a power receiving terminal, a capacitor, and a light adjusting unit. The power receiving terminal is coupled to a switch for receiving a DC power source that supplies for the LED circuit and the driving device via the switch. The capacitor is coupled to the power receiving terminal, and is utilized for storing energy. The light adjusting unit is coupled to the power receiving terminal and the capacitor, and is utilized for generating a control signal according the status of the switch when a voltage on the capacitor decreases and does not decrease below a first threshold voltage, for adjusting light intensity of the LED circuit.
6 Citations
19 Claims
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1. A driving device for a light emitting diode (LED) circuit comprising:
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a power receiving terminal coupled to a switch for receiving a direct current (DC) power source that supplies for the LED circuit and the driving device via the switch; a capacitor coupled to the power receiving terminal for storing energy; and a light adjusting unit coupled to the power receiving terminal and the capacitor for generating a control signal according the status of the switch when a voltage on the capacitor decreases and does not decrease below a first threshold voltage, for adjusting light intensity of the LED circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A lighting device comprising:
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a light emitting diode (LED) circuit comprising at least one LED; a switch coupled to an alternating current (AC) power source supplying for the light device, for controlling an output status of the AC power source; and a driving device comprising; a power receiving terminal coupled to the switch for receiving a direct current (DC) power source converted by the AC power source via the switch; a capacitor coupled to the power receiving terminal for storing energy; a control unit coupled to the LED circuit for adjusting current consumption of the LED circuit according to a control signal, for driving the LED circuit; and a light adjusting unit coupled to the power receiving terminal, the capacitor, and the control unit, for generating the control signal according the status of the switch when a voltage on the capacitor decreases and does not decrease below a first threshold voltage, for adjusting light intensity of the LED circuit. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification