1. a) Draw and label the symbol of semiconductor junction diode. [3] b) Draw and label...
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1. a) Draw and label the symbol of semiconductor junction diode. [3] b) Draw and label the V-I characteristic curve of silicon diode. [6] c) Explain the meaning of the flowing terms in relation to a diode characteristics. forward bias [2] reverse bias [2] reverse current [2] i. ii. iii. 2. The diagram below shows a sinige phase full-wave bridge rectifier. a) Draw the output waveform clearly indicating which diodes are ON in each part of the waveform. [4] b) Determine the peak output voltage and current in the 2.2 kW load resistor if Vsec = 60 Vims. Use the practical diode model. [6] 120V relell eeeee 60 Vis D₂ D₂ R₂ D₁ 22kQ 3. In the voltage regulator circuit shown below, Vps = 10V, Vz= 5V, R₁ = 1500, and Pz (max) = 400 mW. a) Determine li, Iz, and IL given RL = 28002. b) Calculate the value of RL that will establish Pz(max) = in the diode. [10] R₁ ww VPS Iz Vz IL RL VL ↓ 1. a) Draw and label the symbol of semiconductor junction diode. [3] b) Draw and label the V-I characteristic curve of silicon diode. [6] c) Explain the meaning of the flowing terms in relation to a diode characteristics. forward bias [2] reverse bias [2] reverse current [2] i. ii. iii. 2. The diagram below shows a sinige phase full-wave bridge rectifier. a) Draw the output waveform clearly indicating which diodes are ON in each part of the waveform. [4] b) Determine the peak output voltage and current in the 2.2 kW load resistor if Vsec = 60 Vims. Use the practical diode model. [6] 120V relell eeeee 60 Vis D₂ D₂ R₂ D₁ 22kQ 3. In the voltage regulator circuit shown below, Vps = 10V, Vz= 5V, R₁ = 1500, and Pz (max) = 400 mW. a) Determine li, Iz, and IL given RL = 28002. b) Calculate the value of RL that will establish Pz(max) = in the diode. [10] R₁ ww VPS Iz Vz IL RL VL ↓
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