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| LED lamp beads 7 volts |
| Time:2022-10-09 00:00:00 | view： |
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Hello everyone, I am Xiaobian Rong Sister today, let ’s introduce the problem of empty load voltage of LED lamp beads 7 volts of LED power supply. The following is the summary of Sister Rong’ s summary of this issue and related issues. Let ’s take a look. Catalog of the article:1, LED7 volt and connecting a few volt voltage 2. LED lamp switch power supply belt 7ⅴ empty load 103V. What are the reasons 3, 7030? How much voltage of LED lamp beads LED7 volt and couplet requires several voltage voltages If it is a 7 volt LED light, of course, a 7 -volt DC power supply is required. Any electrical appliance has its rated work voltage. In order to use electrical appliances to work normally, when using electrical access to voltage, it is necessary to strictly connect to the appropriate voltage of the working voltage of this electrical appliance. It is a DC that cannot access and communicate. Therefore, the above -mentioned 7 volt LED light can only be used on the voltage of 7 volts (and it depends on whether it is to communicate with 7 volts or DC 7 volts).LED lamp switch power supply belt load 7ⅴ empty load 103V what is the reason , LED lamp beads do not match the LED drive power supply, normal single foot 1W lamp beads to withstand current: 280-300mA, voltage: 3.0-3.4vvv If the lamp chip is not a sufficient power, it will cause the light and light sources of light. The current is too high and the lamp beads cannot bear it. Bright. Second, it may be that the driving power is broken. As long as you replace the other good driving power, it will not flash. 3, if the driver has a temperature protection function, and the material heat dissipation performance of the lamp can not meet the requirements, the driving temperature protection starts to work, for example: 20W light cast lamp shells are used to assemble 30W of 30W. Lighting, this is the same if it is not done well. 7030 lamp beads are the voltage of 6-7V. The so-called 6-7V refers to the discrete nature of each lamp bead product parameter. Since LED is a current -type component, the voltage is only a reference value, so its rated current (150mA) must be screened before production. LED12V power supply is only 7V. What is the reason for 1 reason I do n’t know if you are measured by the loading or empty load. The general switching power supply cannot be loaded. Starting the protection circuit, if the air load measurement is only 7V, it may be that the protection circuit works. Please load the measurement. If it is still 7V, the power supply is broken. The main shock power element should not be damaged.LED lamp bead voltage is the voltage of the voltage Generally, the working voltage of the LED light is 3-12V. LED lamp bead is actually a light -emitting diode, which will glow after loading a certain voltage and current. Generally speaking, the voltage of a single LED chip is about 3V and the current is 30mA. For the voltage and current of LED lamp beads, most of them are determined by the co -packaging relationship of LED chips during the LED packaging process. The most used LED lamp beads used in the lamp tube are made of two LED chips in parallel, that is, 3V, 60mA. For the high -voltage LED9V lamp beads that are used mostly, the three LED chips are connected in series, that is, 9V, 30mA. The above is the answer to the LED lamp bead 7 volt LED power supply voltage and related questions. I hope it will be useful to you [Responsible editor: Sister Rong] |
