Multi-brightness LED controller draws zero off-current

Multi-brightness LED controller draws zero off-current

T A Babu @ edn.com has a design idea of a led controller with some nice features:

The key features of this Design Idea are:

Soft switch on/off operation

Zero current drain in sleep mode

Two level dimming

Low battery protection

Simple controller based on CMOS 4017 Johnson counter

Multi-brightness LED controller draws zero off-current – [Link]

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About mixos

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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