Integrator-ramp-generator-with-initial-condition-reset

  
Channell is wired as a conventional integrator, and channel2 as a voltage follower. When channel2 is switched on, the output will follow VJN and C will discharge to maintain 0 V across it. When channel! is then switched on, the output will initially be at the instantaneous value of VJN, and then will commence integrating towards the opposite polarity.
Integrator-ramp-generator-with-initial-condition-reset - schematic

This circuit is particularly suitable for timing ramp generation using a fixed de input. Many variations, such as building programmable time constant integrators, are possible.




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