Constant Current Power Supply using Pulse Width Modulation
Light an LED, Power a motor, this simple – ish circuit will accommodate all you constant current needs using NE555 chips! This is a great way to learn about electronics and although not as efficient as using a pre made buckpuck, this is more fun, cheaper and hopefully you’ll learn something too! [via]
Constant Current Power Supply using Pulse Width Modulation - [Link]











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