EXAMPLE: Design an inverting Schmitt trigger circuit with VUTP = 3V and VLTP = 2.6V. Assume the supply voltages are 12V. Recall for Inverting Schmitt Trigger, Hysteresis band: VUTP-VLTP Centre of transfer characteristic: (VUTP+VLTP) = 1 VREF R R+R2 2 Vin 2 VREF Vout R1 R2 2R2 R+R -Vs

EXAMPLE: Design an inverting Schmitt trigger circuit with \\( \\mathrm{V}_{\\mathrm{UTP}}=3 \\mathrm{~V} \\) and \\( \\mathrm{V}_{\\mathrm{LTP}}=2.6 \\mathrm{~V} \\). Assume the supply voltages are \\( \\pm 12 \\mathrm{~V} \\). Recall for Inverting Schmitt Trigger, Hysteresis band: \\( V_{U T P}-V_{L T P}=\\frac{2 R_{2}}{R_{1}+R_{2}} V_{5} \\) Centre of transfer characteristic: \\[ \\left(\\frac{V_{U T P}+V_{L T F}}{2}\ ight)=\\frac{R_{1}}{R_{1}+R_{2}} V_{R E F} \\]