Patch light-emitting diodes (leds) is how to send 'light'?
patch light-emitting diodes (leds) is a solid-state semiconductor devices, it can be directly put DianZhuan into light. Normally its voltage is 1. 9 - 3. Minimum 2 v, the red light, yellow light voltage. The heart of the LED is a semiconductor chip, chip attached on a bracket, at the end of the end is negative, the other end connected to the power of the anode, the whole chip is encapsulated by epoxy resin.
patch of light emitting diode & other; Heart & throughout; ( Semiconductor wafer) Consists of two parts, one part is a p-type semiconductor, dominated by holes in it, the other end is n-type semiconductor, this way is mainly electronic. Connect the two kinds of semiconductor, a P - to form between them N junction. When a current flows through a wire to the chip, the electron will be pushed P area, electron and holes in the P zone compound, then will be issued in the form of photon energy, so that the LED can light.
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