Got a question about converting voltages.
i've got a +3.3V pwm signal out of my CPLD, convert it with a RC network to a maximum analog voltage of +3.3V (duty cycle 100%).
Now i'am going to use the signal for creating an offset signal after a DAC circuit.
This offset must be about -5V or +5V.. it also may be a little bit lower (4V should also work).
so i want to convert the analog voltage of the RC network (0..+3.3V) to a range of -5V..+5V.
Somebody got an idea how to do it?
thank you...
i've got a +3.3V pwm signal out of my CPLD, convert it with a RC network to a maximum analog voltage of +3.3V (duty cycle 100%).
Now i'am going to use the signal for creating an offset signal after a DAC circuit.
This offset must be about -5V or +5V.. it also may be a little bit lower (4V should also work).
so i want to convert the analog voltage of the RC network (0..+3.3V) to a range of -5V..+5V.
Somebody got an idea how to do it?