I'm trying to restore an Atari 16 bit computer from 1990 (a STACY Laptop).
It has an LCD that requires -20v DC 0.03A
The ORIGINAL input power to the computer from the AC/DC power supply is 16.5VDC 2.5A, which feeds into a DC-DC board which basically outputs 12, -12, 5, gnd, -20v. This board is large and of course, 30 years old. I'd like to replace it and save a lot of internal space in the computer.
I'm leaning towards using a PICO PSU module which has the standard +12,+5, -12, GND
Can someone help me with a circuit that I can use to generate the -20v 0.03a DC using 12v DC as an input?
Thanks in advance!
It has an LCD that requires -20v DC 0.03A
The ORIGINAL input power to the computer from the AC/DC power supply is 16.5VDC 2.5A, which feeds into a DC-DC board which basically outputs 12, -12, 5, gnd, -20v. This board is large and of course, 30 years old. I'd like to replace it and save a lot of internal space in the computer.
I'm leaning towards using a PICO PSU module which has the standard +12,+5, -12, GND
Can someone help me with a circuit that I can use to generate the -20v 0.03a DC using 12v DC as an input?
Thanks in advance!