K
Kev
Guest
Hey Everyone.
I need to be able to generate a negative voltage from a microcontroller. To
be more detailed, when the microcontrollers output is 1 (high) I want to
generate a positive voltage of 9V. But when the output is 0 (low) I want to
generate a negative voltage of -9V. The positive and negative 9V supply
must be with respect to the microcontrollers ground. The microcontroller is
5V and I have a 9V supply (from a 78L09 regulator). I have no negative
supplies though. The circuit would need to run at speeds of about 70KHz.
The simpler the solution the better.
Thanks.
I need to be able to generate a negative voltage from a microcontroller. To
be more detailed, when the microcontrollers output is 1 (high) I want to
generate a positive voltage of 9V. But when the output is 0 (low) I want to
generate a negative voltage of -9V. The positive and negative 9V supply
must be with respect to the microcontrollers ground. The microcontroller is
5V and I have a 9V supply (from a 78L09 regulator). I have no negative
supplies though. The circuit would need to run at speeds of about 70KHz.
The simpler the solution the better.
Thanks.