I believe that everyone is familiar with LED displays, because in many fields, LED displays will be configured. LED displays are used as indicator lights in circuits and instruments, or to form text or digital displays. The gallium arsenide phosphorous diode emits red light, the gallium phosphide diode emits green light, the silicon carbide diode emits yellow light, and the indium gallium nitride diode emits blue light. Jinan LED display will talk about its power calculation method today.
The formula for power is P=UI:
P stands for power, U stands for voltage, and I stands for current. Usually, the power supply voltage we use is 5V, and the power supply is 30A and 40A; single color is 8 unit boards and 1 40A power supply, and double color is 6 unit boards. 1 power supply; The power of the outdoor screen refers to the "product parameters" on the website, which is very clear there.
An example will be given below:
A unit needs to make an indoor 5.0 two-color electronic screen of 9 square meters, and calculate the maximum power required. First, it is very simple to calculate the number of 40A power supplies = 9 (0.2440.488)/6=12.5=13 power supplies (to be an integer, whichever is larger), the maximum power P=1340A5V=2600W.
The power of a single lamp = the power of a lamp 5V20mA=0.1W
The power of the LED display unit board = the power of a single lamp resolution (the number of horizontal pixels the number of vertical pixels) / 2
The maximum power of the screen {{0}} the resolution of the screen the number of lights per resolution 0.1
The average power of the screen {{0}} the resolution of the screen the number of lights per resolution 0.1/2
The actual power of the screen {{0}} the resolution of the screen the number of lights per resolution 0.1 / the number of scans (4 scans, 2 scans, 16 scans, 8 scans, static)
