LED란 무엇인가? LED 사용 방법. LED 극성 구분 법 3가지, 순방향 전압/ 순방향 전류, 문턱 전압. LED에 저항 값 계산 하는 법.

Hello? This is Gongdory sam.

Today we will learn how to use LED. 3 types of LED polarity classification, forward voltage / forward current, threshold voltage. Why you should use current limiting resistors for LEDs. How to calculate the resistance value connected to the LED.

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