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 | The application of led drivers?
The application of led drivers?
2019-09-09
It is critical to choose a right led driver for a particular application. such a dedicated drive circuit can provide the rated voltage and current for LEDs, creating a good condition for their normal operation.

To achieve illumination purpose, the LEDs need a forward voltage to allow current to flow. The LED driver therefore has to provide a forward bias to the LED to illuminate. The brightness of an LED is usually proportional to the magnitude of the forward current. In addition, the current through the LED should not exceed the rated current specified by the device. Thus a constant current driver circuit is the ideal solution for controlling the current at the correct level of driving the LED. In other words, the LED driver circuit is a power conversion circuit that provides a constant current instead of a constant voltage. The LED driver circuit should contain at least one voltage detection circuit and one current switch circuit.
When circuit detects different voltage levels of the power supply, it sends a signal to the current opening circuit, and then the current switching circuit is automatically activated, and the electrical setting of the LED is re-adjusted using a predetermined current value, thereby effectively lighting as many LEDs as possible.

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