Because of this I’ve used 1N4001 diodes to make the bridge rectifier. ... My full-wave rectified signal was only showing up as half-wave rectified on the scope.

Precision half-wave rectifier; Inverting summing amplifier; ... Diode D1 is reverse biased and D2 Diode is forward biased, the circuit is. Vb = -(R2/R1) * Vin. In the circuit, R1 and R2 have been ...