Hello all! I am very new in eelctronic circuit design. I am struck with some problem related with clamping. I have got one sensor which gives frequency pulse output of around 5 kHZ and voltage level of this pulse is between 3.5 Volts to 11.3 volts. I want to clamp the lower value of this voltage which is 3.5 volts to zero volts. SO, i want pulse signal of same frequency as I/P signal but the voltage level should be between 0 Volts to 7.8 Volts . can anybody among this team of technocrats help me out in this???