Power supply for LED signal
First Claim
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1. A power supply for a light emitting diode (LED) traffic signal lamp comprising:
- a fuse module, an electromagnetic compatibility (EMC) filter module, a power supply module, a LED load module, a current monitor module, a RMS-to-DC conversion module, and a fuse blow out module.
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Abstract
A power supply for a Light Emitting Diode (LED) traffic signal that controls the light intensity. The light intensity conforms to a predetermined pattern based on the input voltage root mean square value (Vrms). The input voltage is changed by acting on the amplitude of the sine wave or by using a triac and controlling the angle of fire. The power supply comprises a fuse module, an electromagnetic compatibility filter module, a power supply module, a LED load module, a current monitor module, a RMS-DC conversion module and a fuse blow out module.
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Citations
27 Claims
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1. A power supply for a light emitting diode (LED) traffic signal lamp comprising:
- a fuse module, an electromagnetic compatibility (EMC) filter module, a power supply module, a LED load module, a current monitor module, a RMS-to-DC conversion module, and a fuse blow out module.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
Specification