In this illustration, the graph on the upper right represents the voltage across the sensor capacitor. Changes in the SR Latch state will be indicated by highlighting green the appropriate row in the SR Latch truth table. Starting at device power-up, the voltage across the sensor capacitor is 0. Therefore, comparator 2 output goes HIGH while the inverted output of comparator 2 goes low since both inverting inputs are less than the non-inverting input threshold voltages. This places the SR Latch into Reset driving the Q bar output to 1. This begins to charge the sensor capacitor.