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What is the features of LED power supply?
2021-09-13

(1) High reliability

Especially like the driving power of LED street lamps, installed at high altitude, maintenance is inconvenient, and the maintenance cost is also high.

(2) High-efficiency

Battery life is critical in portable applications. For an LED driver to be useful, it must be efficient. An efficiency measurement of an LED driver differs from that of a typical power supply. An efficiency measurement of a typical power supply is defined as the output power divided by the input power. Defining the efficiency in this way means that the power dissipated in the current-sense resistor contributes to the power lost in the supply.A supply with a lower currentsense voltage is more efficient regardless of input voltage or LED current. With all else being equal, a lower reference voltage significantly improves efficiency and extends battery life.

Triac dimmable led driver 12V


(3) High power factor

The power factor is the requirement of the power grid on the load. Generally, there are no mandatory indicators for electrical appliances below 70 watts. Although the power factor of a single electrical appliance with low power is lower, it has little effect on the power grid, but the large amount of lighting used at night and too concentrated similar loads will cause serious pollution to the power grid. For LED power supplies of 30 watts to 40 watts, it is said that in the near future, there may be certain index requirements for power factors.

(4) Drive mode

There are two types currently in use: one is a constant voltage source for multiple constant current sources, and each constant current source individually supplies power to each LED. In this way, the combination is flexible, and the failure of one LED will not affect the work of other LEDs, but the cost will be slightly higher. The other is direct constant current power supply, which is the driving method adopted LED series operation. Its advantage is that the cost is a bit lower, but the flexibility is poor, and it must solve the problem of a certain LED failure without affecting the operation of other LEDs. These two forms coexist for a period of time. Multi-channel constant current output power supply mode will be better in terms of cost and performance. Maybe it will be the mainstream direction in the future.

(5) Surge protection

The most common type of surge protector contains a component called a metal oxide varistor or MOV, which diverts the extra voltage away from the device it is protecting.

In the end, SMARTS manufacture many kinds of led driver,such as Triac dimmable led driver 12V/24V, 0-10v dimmable driver/24V, or DMX 512I dimmable led driver/24V. Pls don’t hesitate to contact with us at info@swinpower.com.

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