Generally, the voltage used in the world is generally 110V or 220v AC voltage. For example, the United States/Japan mostly adopts 110v, and 4/5 countries adopt 220v.220V voltage standard. In addition to low line consumption and farther transmission, " There is one advantage: low cost of wires. Taking home lighting requirements as an example, 2.5 square circuits can be fully satisfied, but if 110V voltage is used, 5 square circuits are required.
There is also a type of DC 110vled fluorescent lamp, which is the power supply voltage on the train. In June 2019, there was such a case. There is a developing country, we will not mention the nationals, and it is located in South Asia. Because it is an old-fashioned train, the above The power supply is DC. The customer also explained that this voltage is not stable. Although the nominal value is DC110v, the voltage range is between 75v-110v. Let our company produce LED fluorescent lamps with this voltage range for replacement trains According to the current common practice, DC 110v, DC 220v, DC 12v-24v-36v, generally the voltage span between these three kinds of 75-110v, just between low voltage and 110v, a bit troublesome, and because of its The quantity is not very large, and the customer's request is still urgent. No way, our company has to re-develope a special power supply for them. The voltage range can be used between 70v-120v, and the output terminal adopts the boost mode to promote aluminum The substrate works, the power supply adopts the built-in mode, which makes up for the vacancy in the market, and also broadens the voltage range of our LED fluorescent lamp, and further increases the variety. Although it is troublesome, the customer's choice has increased.
Note that due to the low voltage range, the current will increase, so the wire diameter of the input line is required to be thicker than the 220v fluorescent lamp input line. The purpose is to reduce heat generation and use more safely. If you need something special Voltage, our company can develop for you, let you go back with satisfaction.
Knowledge points
Alternating current, abbreviated as AC in English, is a voltage that changes periodically in magnitude and direction. The waveform is a sine wave, and the frequency is generally 50/60 Hz.
Direct current is abbreviated as DC in English, which is the opposite of alternating current. It is a voltage whose magnitude and direction do not change with time. The waveform graph is a straight line.
The relationship between them is that the alternating voltage AC can be obtained by rectifying the direct current voltage DC, and the direct current voltage can be converted into an alternating voltage. The two can be converted into each other with the help of electronic technology.
