Exclusive NOR Circuit
This is a simplified exclusive NOR (XNOR) logic circuit. It performs logic function manipulations easily and with minimal complexity.
The circuit comprises two transistors, Q1 and Q2, and three resistors, R1, R2, and R3. The mode of operation is such that when the input voltages VA and VB are equal, the output voltage is equal to +VDC. When VA and VB are not equal, the output voltage is equal to the lesser of VA and VB.