hello electro techs.
i purchased a pre made circuit board yesterday that needs between 24v - 30v to operate. ( as it says in the instructions 24v>30v for single rail power and +/-12v->+/-15v for dual rail.
i have an old hewlett Packard (HP)PSU from a printer that passed away a while ago that outputs 40.6 volts and I have just found a voltage regulator on the net that can deliver 24volts.
the voltage regulator has a max input of 40v to operate but as i say my HP PSU ouputs 40.6 volts, so its a little high perhaps for real comfort? Could I simply place a resistor in series between the psu and regulator to bring this down a tiny bit so i've nothing to worry about when its up and running?
Voltage regulator,MC7824CT 24V 1A
circuit board power consumption 12ma ( i hope to power two cards in the future from this one supply)
thanks for help on this : )
i purchased a pre made circuit board yesterday that needs between 24v - 30v to operate. ( as it says in the instructions 24v>30v for single rail power and +/-12v->+/-15v for dual rail.
i have an old hewlett Packard (HP)PSU from a printer that passed away a while ago that outputs 40.6 volts and I have just found a voltage regulator on the net that can deliver 24volts.
the voltage regulator has a max input of 40v to operate but as i say my HP PSU ouputs 40.6 volts, so its a little high perhaps for real comfort? Could I simply place a resistor in series between the psu and regulator to bring this down a tiny bit so i've nothing to worry about when its up and running?
Voltage regulator,MC7824CT 24V 1A
circuit board power consumption 12ma ( i hope to power two cards in the future from this one supply)
thanks for help on this : )