jeff@abnji.UUCP (jeff) (03/29/85)
[spritzensparken!]
I am currently breadboarding a Z80 and need a power supply to
burn EPROMS. The 2764 needs a Vpp of 21 volts +/- .5 volts. It MUST NOT
EXCEED 25 v including overshoot.
My research found a circuit in Radio Electronics that used a
regulator that has a switched input (a TTL signal turns it on/off),
the rationale being that there will be no transients when turning on/off
since the regulator is designed for that purpose.
That seems to be the most trustworthy design I've seen, but I
have the yearning to have a DC/DC converter so as to keep the
entrie system +5V only. Does anyone have an EPROM burner that works on
+5 only? If so,please tell me so we can arrange for me to get the schematic.
Or if you have any information that could help my choice of a
circuit, please pass it on. Thanks in advance.
Jeff 'hardware AND software type' Skot
{ ihnp4 | mcnc | cbosgb} abnji ! jeff