Duty cycle, D% =[RB/(RA+RB)]x100% =120Ω/(150Ω +120Ω)x100% = 0.55×100% =55%. 5. How to achieve 50% duty cycle in adjustable rectangular wave generator? (Assume R1 –> Resistor connected between supply and discharge and R2 –> Resistor connected between discharge and trigger input.)
A. R1 < R2
B. R1 > R2
C. R1 = R2
D. R1 ≥ R2
Answer:A
Duty cycle, D% =[RB/(RA+RB)]x100% =120Ω/(150Ω +120Ω)x100% = 0.55×100% =55%. 5. How to achieve 50% duty cycle in adjustable rectangular wave generator? (Assume R1 –> Resistor connected between supply and discharge and R2 –> Resistor connected between discharge and trigger input.)
A. R1 < R2 B. R1 > R2 C. R1 = R2 D. R1 ≥ R2
Explanation: The equation of duty cycle, D= R2/(R1 + R2). If R1 is made equal to R2 then 50% duty cycle is achieved. 6. How to obtain symmetrical waveform in Astable multivibrator?