Fw: [sdiy] Level Translation

[Philippe Derenne]

 Hi Tim,

 One opamp (comparator) should do the job.
 Supply lines : +10 and -10 volt
 Non inverting input : fixed to 2 volts with a resistive divider.
 Inverting input : input voltage via a resistor (plus a diode to the +
 10 volt to protect the opamp's input)
 If input voltage is 0 V, the inverting input is lower than the
 non-inverting => output is + 10 V
 If input voltage is 15 V, the inverting input is higher than the
 non-inverting => output is - 10 V

 Just an idea, not tested ! It's 01:30 AM in Belgium... ;-)

 Phil.

 ----- Original Message -----
 From: "Tim Ressel" <madhun2001 at yahoo.com>
 To: "synth diy" <synth-diy at dropmix.xs4all.nl>
 Sent: Monday, October 28, 2002 10:59 PM
 Subject: [sdiy] Level Translation


  | Yo, Can you spare a cup of neurons? I'm all out...
 |
 | This is something I've never been good at: I have a
 | cmos gate putting out a 0-15V signal, and I need to
 | translate that to +/-10V. I just can't seem to wrap my
 | move-addled brain around this today.
 |
 | TIA
 |
 | --TR