Is ERD a good brand to buy 5V PSU? Any suggestion for 9v?Buy a decent quality usb phone charger. Battery power is the cleanest power.
I want to use 5V/2A power supply for some sensitive electronics. Can somebody recommend me a good regulated power supply?
9V power supply would be handy as well.
Thats a good suggestion. Unfortunately, I have a space constraint so cannot use an ATX supply.Pick up a used ATX power supply. Use the 5 volt rail (red). Tons of current and excellent regulation.
If you can solder, you can use a voltage follower to bring the 12 volt output of the ATX power supply down to 9.
USB chargers may not give you 2 Amps. Battery chargers, in general, are not power supplies. They can have voltage sensing/current limiting electronics at the output.
You install it wherever you have space and just run a wire to the device.Thats a good suggestion. Unfortunately, I have a space constraint so cannot use an ATX supply.