Peak Detector Circuit Diagram. We have a diode connected in series to a diode which is in parallel to an open circuit. A fast peak detector similar but faster than previous peak detector can be implemented using open loop configuration.
The voltage at q1 emitter will follow the voltage at its base approximately same with the input voltage but added with base emitter voltage of q1. A fast peak detector similar but faster than previous peak detector can be implemented using open loop configuration. A peak detector circuit is a circuit that is able to measure the peak amplitude that occurs in a waveform.
The circuit does not require any complex component in order to determine the peak of the input waveform.
The circuit is shown in the figure below with the corresponding spice net list. In this design d1 is the detector diode and d2 is a level shifting or compensating diode. Dual comparator ic lm393 is the heart of this circuit. This gives us the highest value of a waveform reaches and it can measure the maximum amplitude value of a signal.
