POWER SUPPLY DEVICE, LUMINAIRE, AND POWER SUPPLYING METHOD
First Claim
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1. A power supply device comprising:
- a switching element; and
a control section configured to control the switching element, whereinthe control section receives an input of a first signal fixed with respect to an input voltage of the power supply device and a second signal, amplitude of which fluctuates according to the input voltage of the power supply device, and controls ON or OFF of the switching element according to time until a value of the second signal reaches a value of the first signal.
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Abstract
In a power supply device 1 including a switching element 12 and a control section 11 configured to control the switching element 12, the control section 11 receives an input of a first signal fluctuating according to an output voltage of the power supply device 1 and fixed with respect to an input voltage of the power supply device 1 and a second signal, the amplitude of which fluctuates according to the input voltage of the power supply device 1, and controls ON or OFF of the switching element 12 according to time until a value of the second signal reaches a value of the first signal.
6 Citations
20 Claims
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1. A power supply device comprising:
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a switching element; and a control section configured to control the switching element, wherein the control section receives an input of a first signal fixed with respect to an input voltage of the power supply device and a second signal, amplitude of which fluctuates according to the input voltage of the power supply device, and controls ON or OFF of the switching element according to time until a value of the second signal reaches a value of the first signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A luminaire comprising:
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a light-emitting element; and a power supply device including a switching element configured to adjust supplied power to the light-emitting element and a control section configured to control the switching element, wherein the control section receives an input of a first signal fixed with respect to an input voltage of the power supply device and a second signal, amplitude of which fluctuates according to the input voltage of the power supply device, and controls ON or OFF of the switching element according to time until a value of the second signal reaches a value of the first signal. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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- 14. A power supplying method in a power supply device that controls a switching element and controls supplied power to a light-emitting element, the power supplying method comprising controlling ON or OFF of the switching element according to time until a value of a second signal, amplitude of which fluctuates according to an input signal of the power supply device, reaches a value of a first signal fixed with respect to the input voltage of the power supply device.
Specification