CD4026B and 7-segment display tutorial - do I need LED protection resistors? ULN2803A @PizzeyTechnology
CD4026B and 7-segment display tutorial - do I need LED protection resistors? ULN2803A @PizzeyTechnology
Uploaded December 2020 | Updated September 2026, 3 weeks ago
Most student circuits that use LEDs include LED protection resistors (current limiting resistors). Do you need to use these resistors when using a CD4026B decade counter with 7-segment outputs? MAYBE! Watch this video to understand the problem and discover an additional component (ULN2803) that may improve your circuit.
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CD4026B and 7-segment display tutorial - do I need LED protection resistors? ULN2803A

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