Ex6 (H.W): A full-wave bridge rectifier supplies a load with 50 V dc, 100mA using 100 uF of filtering capacitor. Assume ideal diodes and Vs=Vsmax sin314 t, determine Vr(p.p), Vs max and Vs rm
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- A schematic design of a full-wave bridge type power supply is given below. Provide the appropriate values for the inductors, diodes, capacitor and resistors, such that the output DC voltage is 6.2 V and the max. output power for the load resistance is 20 mW (percentage error for output voltage and output power is 2%). AC voltage source: Amplitude=311.13, Freq=60, DC offset= 0. For the rectifier part, choose diodes with an appropriate PIV rating. Show all the formulas and computations involved in acquiring the values for the inductors, diodes, capacitor and resistors. In choosing your Zener diode, consider the output voltage and the output current. Note that the output current should be the minimum Zener current. For the value of the series resistor RS, choose a lower value for less ripple but always consider the required output voltage. The ripple voltage peak-to-peak value should be less than or equal to 1% of the required output voltage. Use the formula below for choosing the value…Some electronic devices operate on a DC voltage of 7.5 V. To obtain 7.5 V DC from a 120-V (rms) AC line, first the voltage is dropped to 7.5 V (rms) AC by a transformer, and then the 7.5 V AC is converted to 7.5 V DC by a rectifier circuit involving diodes. Consider a device of resistance 15 Ω connected to the 7.5-V DC output of the rectifier. Again assuming no power loss anywhere, what is the rms current, in milliamperes, in the primary winding?2) Design a Regulated DC Power supply circuit in multisim of 5V for charging a mobilephone? Note: use bridge rectifier, ac voltage source 120 Vrms or 230 Vrms for the design and appropriate capacitors and voltage regulators to get output exactly at 5V.
- In a 1-phase full wave bridge rectifier with Vs = Vm sin ωt, with R load & ideal diodes. The expression for the average value of the output voltage is 2Vm/π Select one: True FalseDraw the circuit diagram of a single phase full-wave uncontrolledrectifier with R-load. Describe its principle of operation. Draw thewaveforms of: input voltage, voltage across the load, current throughthe diodes and their voltage. Write the expressions for: the averageoutput voltage Vd, the maximum reverse voltage across the diode and thestandard transformer power. Describe what the difference will be if acapacitor is added in parallel with the load at the output.In the figure, SCR semiconductor switched rectifier to a 220 Vrms ac source at 50 Hz, at load Vdc = 100 V, R = 8 Ω and has an inductor large enough to supply continuous current. (a) Trigger angle α = 25o determine the total power absorbed by the load. (b) If the inductance value is 30 mH, the change value from the top Determine.
- A full-wave rectifier circuit with a 1-k load operatesfrom a 120-V (rms) 60-Hz household supply through a 6-to-1transformer having a center-tapped secondary winding. Ituses two silicon diodes that can be modeled to have a 0.7-Vdrop for all currents. Augment this rectifier circuit with acapacitor chosen to provide a peak-to-peak ripple voltage of(i) 10% of the peak output and (ii) 1% of the peak output. Ineach case: (a) What average output voltage results?(b) What fraction of the cycle does the diode conduct?(c) What is the average diode current?(d) What is the peak diode current?A half-wave rectifier is needed to supply 15-V dc to a load that draws an average current of 250 mA. The peak-to-peak ripple is required to be 0.2 V or less. What is the minimum value allowed for the smoothing capacitance? If a full-wave rectifier is needed?The Single-phase HW Rectifiers with R, L with free while diode find the value of Voltage and Currents (output do and Root Mean Square) with all the proved, then sketch the curve from 0-2 on these axes (vs, VL, VD and it) explain its operation.
- EMG devices are equipped with circuits to rectify and next integrate the EMG signals to assessthe muscle force.Design an improved precision half-wave rectifier circuit with a gain of -2 ready to simulate to process signals having amplitudes ranging from -4V to +4V. draw the signal at the output of the designed rectifier circuit for the input signal1×sin(2πt) VConsider the full-wave rectifier circuit shown below, where• vS(t) is a sinusoidal signal with a peak value (Vs = 5 V).• Diodes are modelled using constant voltage model with VDO = 0.7 V• The ac line voltage has an rms value of 120 V and a frequency (f) = 60 Hza) Calculate the transformer turns ratio. b) Plot in the same graph signal vS(t) and the output signal vO(t) versus time (t) (show all details including amplitudes, time instances, etc.) c) Calculate the rms value of the output signal vO(t). (hint: sin2(x) = 0.5(1- cos(2x))) d) If a capacitor C=3.58 F is connected across R = 10 k, repeat (b) in a new graphDerive the current equations for the circuit shown below, using the labels as shown.Note that rz here is a model of the parasitic imperfection of the Zener diode.a) IL = ?b) II = ?c) IZ = ?d) What impact does rz have on VL?