The reference circuit in Figure 17.5 is to be redesigned with
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Microelectronics: Circuit Analysis and Design
- A basic switching regulator is shown in Figure 17-49. If the switching frequency of the transis- tor is 10 kHz with an off-time of 60 us, what is the output voltage? +12 VO- ww R₁ 4.7 kQ D₂ 2.7 V 2₁ DD Modulator fo = 10 kHz off = 60 µs L ото D₁ GörgütührAttäälizasteitärdheit C I mwam www R₂ 10 ΚΩ R₂ VouT 15 ΚΩ www RLarrow_forwardA step up dc/dc converter has input voltage Vs = 9 V, the average output voltage Va = 15 average load current /g = 0.8 A. The switching frequency is f = 20 kHz, inductance is L = 0.3 mH and the parallel capacitance is C = 0.44 mF. Which one is the duty cycle k ? O 0.4 O 0.8 O 0.6 O 0.3arrow_forwardA step up dc/dc converter has input voltage Vs = 9 V, the average output voltage Vo= 15 average load current la = 0.8 A. The switching frequency is f = 20 kHz, inductance is L = 0.3 mH and the parallel capacitance is C = 0.44 mF. Which one is the average input current Is ? O 0.96 A O 1.64 A O 1.33 A O 2.66 Aarrow_forward
- Solve the base current of a voltage-divider bias circuit with Vcc=9V, R1=560k ohms, R2-560k ohms,RC=3.3k ohms, RE=680 ohms, and beta 100. O 15.9uA O 13.2uA 8.9uA O 10.9uAarrow_forwardThis is a second order LTI system subject review question, therefore it is not graded. 1.) Find the value of the R1 (Resistor) with the given values of R1= 80 ohms C=2uF and C1=2uF and cut off frequency of 1 kHz. 2.) Solve for the Final Output Voltage. Upon using multisim probe, the answer should be around 330mV.arrow_forwardPlot the dc bias line for this circuit. www11 R₁ 1.5 ΜΩ R₂ 1.5 ΜΩ VGS (V) +30 V RD 1.1 ΚΩ 2N5459 www11 Rs 10 ΚΩ Minimum and maximum curves are from the datasheets. ID (mA) 16 -12 -10 Qmax 14 1 L L 1 -8 -6 -4 -2 12 10 8 6 4 Qmin Hó VG Rs 1 2 = 1.5 mA 4 1 6 8 10 12 14 16 18 VGarrow_forward
- Draw the small signal equivalent circuit of the following circuit. Note that C1 and C2 are large AC coupling capacitors. 5 VIO C1 RF Q1 C2 fem RL Voarrow_forward7. Given the following linear series voltage regulator calculate the minimum (VOMIN) and maximum (VOMAX) output voltage. Q1 VIN 24V •Vo R2 2.2K R3 10K R4 4.7K R1 Vz 5.1V 4 wwwwwwarrow_forward(ii) What is the output voltage of the amplified signal? (iii) What is the DC voltage at the collector upon which the signal output is riding? (iv) Sketch the input and output waveforms Vin o C Đ 1μF ww1₁ R₁ 47 KS2 R₂ * 4.7 ΚΩ Vcc 15 V B Figure Q5 (a) Rc 10 ΚΩ -o Vout hfe = 150 RE * 1.0 ΚΩarrow_forward
- Various parameters of Schering bridge are given as follows. The voltage supply of 2 kHz is connected to terminals A and C and detector to points B and D. Arm AB comprises the unknown Resistor R1 and capacitor C1. Arm BC consists of resistor R2 of 18k 2. Arm DA consists of capacitor C2 of 0.06 µf. Arm CD has R3 of 1.5kN and C3 of 2nf are in parallel. Calculate (i) the capacitance (C1) (ii) the equivalent series resistance (R1) and (iii) dissipation factor. Also draw the schematic diagram.arrow_forwardo +Vcc 4 3 o Vout 555 6 2 0.01 F What happens to the output of the circuit if the RA value > RB a. The duty cycle of the circuit is 50% b. The duty cycle of the circuit is 100% c. The duty cycle of the circuit is 50% e. All the answers are correctarrow_forwardFor the circuit given below, assume Vcc= 15V, Rc= 18 K2, RE= 8.6 KQ, RB1= 160 KQ, RB2= 100 K2, B=100. Determine IB, IC, VC & VCE. VcC RB1 RC O vc IB O VE IE RB2 REarrow_forward
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