The working principle of led Lighting
Its luminous principle is similar to that of laser. Electrons in an atom have many energy levels. when electrons jump from a higher energy level to a lower energy level, the energy of the electron decreases, and the reduced energy is converted into photons. A large number of these photons are lasers. The principle of LED is similar.
LED lighting can directly convert electricity into light, while the working principle of led lighting circuit is to convert electrical energy into visible light solid-state semiconductor devices. From the led lighting circuit, we can see a semiconductor chip, which is also the principle of LED lamp luminous.
LED lighting principle the main working principle of LED lighting is that seven colors are changed by red, green and blue, and the pulse width modulation of output waveform is used to adjust the duty cycle of LED lighting.
Detailed description of the schematic diagram of LED fluorescent lamp power supply
1, the direction is the same as the original voltage direction, the two self-inductive electromotive force and the power supply voltage are added together to form an instantaneous high voltage, which is added to both ends of the lamp tube, so that the gas in the lamp tube begins to discharge, so the fluorescent lamp becomes the path of current and begins to glow.
2. The heart of LED is a semiconductor wafer, one end of which is attached to a bracket, one end is negative, and the other end is connected to the positive pole of power supply, so that the whole wafer is encapsulated by epoxy resin. Led fluorescent lamp is characterized by high quality, durability and energy saving, and its projection angle can be adjusted in a wide range. The brightness of 15W fluorescent lamp is equivalent to that of ordinary 40W fluorescent lamp.
3. The energy-saving lamp mainly heats the lamp filament through a ballast. When the temperature is about 1160K, the filament begins to emit electrons (because some electron powder is coated on the filament), and the electrons collide with argon atoms to produce inelastic collision. after the argon atom collides, the energy is obtained and the mercury atom is ionized after absorbing the energy.
4. How fluorescent lamps work-traditional fluorescent lamps are also called low-pressure mercury lamps. When the low-pressure mercury lamp is connected to the lamp holder, the electrodes and filaments in the bulb pour the current into it, while the low-pressure mercury vapor is affected by the current. It releases ultraviolet light.
5. The lighting circuit of fluorescent lamp is mainly composed of fluorescent tube, ballast and starter. A fluorescent tube is a glass tube that is pumped into a vacuum and then filled with a certain amount of argon and a small amount of mercury. Each end of the tube is equipped with a filament that can emit a large number of electrons when electrified. The tube is coated with phosphor (so it sometimes becomes a fluorescent lamp).
6. The voltage at both ends of the lamp ionizes argon, which is transferred from argon discharge to mercury vapor discharge, and the function of phosphor is to change the color of the light. The exterior of the lamp tube is also equipped with a ballast, a glow starter and a capacitor. Their functions are to limit the current, automatically close the two electrodes and improve the power factor of the circuit.
How does the led lamp work?
LED light-emitting principle is the use of light-emitting diodes. Led lamp luminous principle: LED inside the PN junction, driven by voltage, the internal electrons and holes will be recombined, the composite process energy will be released in the form of luminous, this is the working principle of LED lamp.
Its luminous principle is similar to that of laser. Electrons in an atom have many energy levels. when electrons jump from a higher energy level to a lower energy level, the energy of the electron decreases, and the reduced energy is converted into photons. A large number of these photons are lasers. The principle of LED is similar.
The intensity of light is related to electric current. The main working principle of full-color LED is to realize the change of seven colors by mixing red, green and blue, using pulse width modulation of output waveform, that is, adjusting the duty cycle of LED lights, and making use of the visual inertia of human eyes to achieve the effect of gradual change when the scanning speed is very fast.
Light-emitting principle LED (Light Emitting Diode), light-emitting diode, is a solid-state semiconductor device, which can directly convert electrical energy into light energy.
LED lighting can directly convert electricity into light, while the working principle of led lighting circuit is to convert electrical energy into visible light solid-state semiconductor devices. From the led lighting circuit, we can see a semiconductor chip, which is also the principle of LED lamp luminous.
The working principle of led lamp is that after being connected to the power supply, the current passes through the P region of the semiconductor, where it recombines with electrons and holes, and finally appears in the form of light. LED lamp is a semiconductor material, generally used silver glue to solidify it to the bracket, surrounded by epoxy resin seal, more able to protect the core wire.
What is the principle of LED lamp?
1. What is the light-emitting principle of led lamps? Led lamps belong to light-emitting diodes, which contain solid semiconductors that can convert input semiconductors into light energy. In addition, the semiconductors inside the led lamp are composed of three parts, including p-type semiconductors, n-type semiconductors, and 5-cycle quantum wells.
2. The LED principle is similar. The difference, however, is that LED does not emit light by jumping electrons within the atom, but by applying a voltage to both ends of the PN junction of the LED, causing the PN junction itself to form an energy level (in fact, a series of energy levels), at which electrons jump and produce photons.
3. LED lighting can directly convert electricity into light, while the working principle of led lighting circuit is to convert electrical energy into visible light solid-state semiconductor devices. From the led lighting circuit, we can see a semiconductor chip, which is also the principle of LED lamp luminous.
4. The principle of LED lamp LED, light-emitting diode, is a kind of solid-state semiconductor device that can convert electrical energy into visible light, it can directly convert electricity into light.
5. therefore, it does not glow. This kind of diode based on the principle of injection electroluminescence is called light-emitting diode, commonly known as LED. When it is in a positive working state (that is, a positive voltage is added at both ends), when the current flows from the LED anode to the cathode, the semiconductor crystal emits light of different colors from ultraviolet to infrared, and the intensity of the light is related to the current.
How does the LED lamp work?
1. When the reverse voltage is applied to the PN junction, it is difficult to inject minority carriers, so it does not emit light. This kind of diode based on the principle of injection electroluminescence is called light-emitting diode, commonly known as LED.
2. LED light-emitting principle is the use of light-emitting diodes. Led lamp luminous principle: LED inside the PN junction, driven by voltage, the internal electrons and holes will be recombined, the composite process energy will be released in the form of luminous, this is the working principle of LED lamp.
3. The LED principle is similar. The difference, however, is that LED does not emit light by jumping electrons within the atom, but by applying a voltage to both ends of the PN junction of the LED, causing the PN junction itself to form an energy level (in fact, a series of energy levels), at which electrons jump and produce photons.
What is the main use of led industrial and mining lamp?
1, from the led industrial and mining lamp attribute analysis use: led industrial and mining lamp power is generally larger, are dozens of W or hundreds of W led industrial and mining lamp waterproof grade is generally not waterproof, generally used indoors. The luminous angle of led industrial and mining lamp is generally local area lighting, not local emphasis lighting.
2. Industrial and mining lamps are widely used in industrial factories, production workshops, supermarkets, sports and entertainment places, warehouses and other places, it is also known as high ceiling lamp, is a high energy efficiency indoor LED lamps and lanterns. Expand small knowledge: which industrial and mining lamp installation requirements should first check whether the industrial and mining lamp is complete or not and the full range of accessories.
3. Factories, workshops, factories, shopping malls, hotels, warehouses, office environments, gymnasiums, exhibition halls, gas stations, highway toll stations, large supermarkets and other high hall rooms and other lighting places.
