rmunson
Well-Known Member
Hello folks -
I'm working on a simple power supply for a project -
I've got a LM7812 providing 12 volts to the main section of the circuit, but I'd like to drop that regulated 12 volts down to six or nine for another part of the device --
Can I just send the regulated 12 volt current from the main section into another power regulator (ie LM7809 or 7806) and drop it down to 9 volts or 6 volts --- or would it be better to use a zener diode?
Is there a problem if you try to drop power too far with a linear power regulator? What is the recommended limit?
Thanks!
Reed
I'm working on a simple power supply for a project -
I've got a LM7812 providing 12 volts to the main section of the circuit, but I'd like to drop that regulated 12 volts down to six or nine for another part of the device --
Can I just send the regulated 12 volt current from the main section into another power regulator (ie LM7809 or 7806) and drop it down to 9 volts or 6 volts --- or would it be better to use a zener diode?
Is there a problem if you try to drop power too far with a linear power regulator? What is the recommended limit?
Thanks!
Reed