A full-wave rectifier circuit (200) includes a comparator (220) configured to output a logic 1 or logic 0 by comparing an analog input signal to a reference voltage. The circuit further includes an analog switch (230) with a control input coupled to the comparator output. A first input of the analog switch (230) is coupled to the analog electrical input and a second input of the analog switch (230) is coupled to a reference input voltage. The switch (230) thus selects the input signal or the reference signal to output based on the comparator output. An amplifier (250) is coupled to receive the analog switch output and generate a signal following the input in an inverting or a non-inverting mode depending on the selected analog switch output, thereby generating a rectified full-wave output of the analog input signal.
展开▼
