I have designed a circuit to capture/output the peak voltage of an input signal, with the output value the inverse of a negative input, such that the output is always a positive voltage, e.g. if the peak input signal is at minus 5V, then the circuit output will be plus 5V.
This is achieved by feeding the signal into a precision rectifier, followed by a simple peak-picker circuit.
Although the circuit works and only uses four op-amps, I’m wondering if there is a simpler solution – or if there is a single device available which performs this function?
A requirement of the circuit is for good accuracy, the peak output voltage should agree with the input at no more than 2% error.
This is achieved by feeding the signal into a precision rectifier, followed by a simple peak-picker circuit.
Although the circuit works and only uses four op-amps, I’m wondering if there is a simpler solution – or if there is a single device available which performs this function?
A requirement of the circuit is for good accuracy, the peak output voltage should agree with the input at no more than 2% error.