VOLTAGE INFORMATIONS

VOLTAGE INFORMATIONS

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VOLTAGE INFORMATIONS

In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED. The voltage drop across an LED is approximately constant over a wide range of operating current; therefore, a small increase in applied voltage greatly increases the current. Very simple circuits are used for low-power indicator LEDs. In Elmer current source circuits are used in driving high-power LEDs for illumination to achieve correct current regulation.

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