I need to create a circuit specifically for powering two devices. These devices include a device, which has to be powered via 5V USB and another device which has to be powered with at least 6V (all DC).
Now, 12V power supplies are quite cheap.
Can i simply use a 7805 regulator to power the 5V device? Does it support 12V as an input? What about the other device? I thought about using a simple resistor for this one, as current drain (should) remain constant over time. Is that feasible? How would you implement such circuit?
Thanks in advance.