Guyzz

I just saw || in a comparqator resistor calculation , what does that mean ?

SINGLE-SUPPLY INVERTING HYSTERESIS:

VTL = (R1||R3)*VCC/((R1||R3) + R2) + (R1||R2) *VOL/((R1||R2) + R3)

VTH = (R1||R3)*VCC/((R1||R3) + R2) + (R1||R2) *VOH/((R1||R2) + R3)

HYST = V TH "“ V TL

HYST = (R1||R2)*(VOH "“ VOL)/(R1||R2 + R3)

/Bingo