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TOP 5 ways to check LED

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ElectronicsClub

Published on Aug 20, 2019

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We have considered 5 ways to test an LED. The leads of a new LED, the anode and cathode, have different lengths. The anode is longer than the cathode. Therefore, even without using a multimeter or tester, you can immediately determine the corresponding leads. Moreover, there is a cut on the case from the cathode side. To find out the leads of an LED in a circuit, it is enough to determine the negative or common bus and the lead that is soldered to the ground is the cathode. A more reliable way to test an LED is with a multimeter or tester. To do this, the multimeter should be switched to the continuity mode. However, for LEDs with a large voltage drop, for example, violet or blue, the latter method is unacceptable, since the multimeter in the continuity mode does not give the required voltage to open the LED, so it seems that the latter is not working. In this case, only a power source of at least 3 V will help, then there is no need to use a current-limiting resistor. These are the 5 ways to test an LED that I use in practice. All about LEDs: • How to connect an LED Microcontroller programming lessons for beginners: / @user-li4xh9fi6w Buy a useful set of LEDs of different colors, 300 pieces: http://ali.pub/3mubp1 Buy a useful set of resistors, 600 pieces, 30 denominations of 20 pieces: http://ali.pub/3muaey Buy a good multimeter: http://ali.pub/3mn1ru Buy the simplest multimeter: http://ali.pub/3mn8qo Get a high DISCOUNT on the purchase of ALL products: http://ali.pub/3mwkwb #electronicsclub #electronics #LED #HowToCheck

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