2. Now consider the monostable circuit of Fig. 4.7. Assume RA 100 k2. Reset Discharge Threshold...
1. Consider the astable multivibrator circuit given in Fig. 4.6 with C 100 nF and Vcc-5 V Reset Discharge 555 Output Threshold Trigger Ground Fig. 4.6. Astable Multivibrator 555 IC Determine the values of the resistors RA and RB to set f-1 kHz and duty cycle-60 % 2. Now consider the monostable circuit of Fig. 4.7. Assume RA 100 k2. Reset Discharge Threshold 555 Output Trigger Ground 0 in Fig. 4.7. Monostable Multivibrator 555 IC Determine C to get a...
Can you Solve this question? III) (10/50) Given the following circuit 1) What is the nature of this circuit 2) Explain the principle of operation of this 555 multivibrator circuit 3) Draw the waveform of the output voltage Vo and V at pin 2 4) Find the expression of the pulse width W of the output voltage in terms of RA and C. 5) Given RA-1 00kΩand C 10μF. Calculate w 6) What are the differences between this circuit and...
(a) Design a inverting Schmitt trigger circuit to be used as a zero crossing detector with transition voltages about ±25 mV. Assume the saturation voltages for the op–amp are ±13 V. Draw the voltage transfer characteristic (VTC), i.e., vout vs. vin. (b) Design an astable multivibrator to produce a square signal with a frequency of 1 kHz using C=0.01 µF, R1 = 30 kΩ, and R2 = 20 kΩ. Sketch the circuit waveforms (vo, v +, and v −) assuming...
3. Consider the following circuit. Q1 is identical to Q2 and p- 100. Q3 is identical to Q4 and B Assume VBE.on-0.7V, VT-25mV. oofor Q1 and Q3, and r, 400 k2 for Q3 and Q4. Vid Vil -Va for differential mode operation, Vicm Vil vi2 for common mode operation, Vo Vo2-Vol for differentially taken output (a) Design Ra to have the bias current lcs 2 mA. (b) Find the differential mode voltage gain for differentially taken output (As Vo/ Via)...
Consider the circuit shown in Figure 1. A Q-point value for IC between a minimum of 4 mA and a maximum of 5 mA is required. Assume that resistor values are constant and that β ranges from 100 to 300. It is desired for RB to have the largest possible value while meeting the other constraints. (a) Determine the values of RB and RE. (b) Explain the contribution of resistor RE for thermal stabilisation of this circuit (Thermal stabilisation -...