Hey!
I've tapped into my USB Port to extract 5V+ and 5V-, then lit up my USB Night Light circuit that I designed. Then, a strip of 60 (3 per section) LED lights came in from Hong Kong and they require 12V for operation.
Now, I could just buy a dang PS, but really, it is a lot more fun to do what I am doing. I've looked at a number of circuits, including the ICL7660-MAX1044, LT1073, and also - but not limited to - the NE555N Timer Chip with the PWM circuit in the datasheet. (I have a hundred of these chips, fresh from China!) I've also seen this same circuit in various forms via Google.
So, what way do I go? Cost is always a factor and the circuit with the least number of chips/components is the best.
~ LSD
I've tapped into my USB Port to extract 5V+ and 5V-, then lit up my USB Night Light circuit that I designed. Then, a strip of 60 (3 per section) LED lights came in from Hong Kong and they require 12V for operation.
Now, I could just buy a dang PS, but really, it is a lot more fun to do what I am doing. I've looked at a number of circuits, including the ICL7660-MAX1044, LT1073, and also - but not limited to - the NE555N Timer Chip with the PWM circuit in the datasheet. (I have a hundred of these chips, fresh from China!) I've also seen this same circuit in various forms via Google.
So, what way do I go? Cost is always a factor and the circuit with the least number of chips/components is the best.
~ LSD