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8. Voltage regulator as a part of the power supply IC2 78LO5Z Rload TR1 D1 1..8...
Your supervisor has also passed on to you a power supply circuit sketch to upgrade your last power supply (Assignment 1) so that it has a Fixed 5V regulator output and a Variable Voltage Regulat...
Your supervisor has also passed on to you a power supply circuit sketch to upgrade your last power supply (Assignment 1) so that it has a Fixed 5V regulator output and a Variable Voltage Regulator output. . Analyse the variable regulator section (containing the LM317 IC) and determine the expected output voltage range the circuit should achieve by the range of adjustment of the 1k potentiometer. Build the circuit and verify the voltage range available. Ensure it can achieve 12V...
1. Calculate the dissipated power on the regulator and what the junction temperature does the regulator...
1. Calculate the dissipated
power on the regulator and what the junction temperature does the
regulator will go up without heatsink? Assume +5V regulator run at
load current 600mA and ambient temperature is 25 °C.
2. Calculate the thermal resistance sink to ambient if you think
that you need a heatsink for the regulator. Assume the thermal
resistance for thermal interface material is 0.16 °C/W and the
maximum ambient temperature of 45°C.
3. Calculate the thermal resistance sink to ambient....
3. For the regulated power supply shown in Figure 5-3, which is a full-wave bridge rectifier...
3. For the regulated power supply shown in Figure 5-3, which is a full-wave bridge rectifier containing ter combined with a Zener diode voltage regulator, determine the load voltage VI, load current Ir, source current Is, Zener current Iz and the ripple voltage at the input and output of the regulator, and r(p-p)y respectively, and the ripple frequency fr a fil- VL Ir. Is Iz=. (d-4)1a Ur(p-P) Is V' 1N4002GP Vout = VL + Iz IL 100 V2 120 V...
Design a boost converter power stage to the following specification: Input voltage Output voltage: Output voltage...
Design a boost converter power stage to the following specification: Input voltage Output voltage: Output voltage ripple:max 20mV Load power: Switching frequency: 15kHz 110-125V 300V 1.5kW Calculate: (i) Maximum duty cycle (ii) Minimum duty cycle (iii) Average diode current (iv) Assuming the Rds(on) of the MOSFET is 0.01 Ω, and the diode forward voltage is 0.8V, calculate the approximate efficiency of the circuit. 2. A switching power supply shown in the circuit below has its switch driven by a signal...
Pt 1 Please find voltage and power across RLoad for both 100 ohms and 220 ohms....
Pt
1 Please find voltage and power across RLoad for both 100 ohms and
220 ohms.
Pt 2 What relationship can you deduce between the Resistance
(Rload) value, its power, and the thevenin resistance?
Isrve loorva $47052 {2202&pisal SV + 2202 1901 or 2202
SOLVE PART B A class B complementary symmetry amplifier using ONE power supply is shown. Let...
SOLVE PART B
A class B complementary symmetry amplifier using ONE power supply is shown. Let Vcc = 12 V, R1 = R3 = 1 k12, R2 = 1700, Rs = 100 2, and R1 = 8 2. Transistors Qi and Q2 are matched with B = 100. Vcc lic ic R1 AC Load Line Ry 05 VCC Q не 2R DC Load Line Cz Vin R2 İc2 Vo HE Q C Voc R3 2 a) b) Determine the Pload(max)...
a) The DC power supply below is connected to a 110 V RMS, 50 Hz AC...
a) The DC power supply below is connected to a 110 V RMS, 50 Hz AC mains. The transformer has turns ratio N, : N2 = 10 : 1, and the diodes have forward voltage drop 0.7 V, and the regulator has dropout voltage 1.8 V. We require V 5 V. OUT =2 A GND 110 V rms O A R V Va VC 50 Hz N2 N i. Given the transformer has turns ratio Nį: N2 = 10: 1...
Problem 3: (20 points) A zener-diode voltage regulator circuit is shown belkw zener diode has breakdown voltage Vz 8.0V and the zener resistance is nsumed to be 0 ohms. The power supply voltage V...
Problem 3: (20 points) A zener-diode voltage regulator circuit is shown belkw zener diode has breakdown voltage Vz 8.0V and the zener resistance is nsumed to be 0 ohms. The power supply voltage Vps can vary between 10V and 14V and the lod resistance Ri can vary between 100 ohms and 1 kohm, 圧 1. Find a value of R such that the zener diode remains properly biased over the range of variation of Vps and RI (hint: the minimum...
Power Supply with Zener Voltage regulator D4 131 12 Vpk Vs 60 Hz 0° D2 D3 2. Simulate the bridge rectifier with three different filter capacitors(1uf, 5μF and 10μF) and observe output waveforms. Comp...
Power Supply with Zener Voltage regulator D4 131 12 Vpk Vs 60 Hz 0° D2 D3 2. Simulate the bridge rectifier with three different filter capacitors(1uf, 5μF and 10μF) and observe output waveforms. Compare ripple voltages, estimation vs. simulation values Plot v, and vout waveforms.
Power Supply with Zener Voltage regulator D4 131 12 Vpk Vs 60 Hz 0° D2 D3 2. Simulate the bridge rectifier with three different filter capacitors(1uf, 5μF and 10μF) and observe output waveforms. Compare ripple...
In the circuit below, T1 is rated 12V RMS secondary voltage, D1, D2, D3 &D4 are IN4001 rectifying diodes and RL...
In the circuit below, T1 is rated 12V RMS secondary voltage, D1, D2, D3 &D4 are IN4001 rectifying diodes and RL is 1.8ΚΩ. Given that RI-2202, and R2 1.2KQ, use the formula provided to calculate the output voltage (Vo) of the LM317 voltage regulator. Provide an answer in engineering notation, correct to 3 significant figures. 1 A Vo= 1.25V (1 + R2/ R1) Da AC line C CT input 60 Hz NC D, CI 120 V/12 V R2
In the...
Your supervisor has also passed on to you a power supply circuit sketch to upgrade your last power supply (Assignment 1) so that it has a Fixed 5V regulator output and a Variable Voltage Regulator output. . Analyse the variable regulator section (containing the LM317 IC) and determine the expected output voltage range the circuit should achieve by the range of adjustment of the 1k potentiometer. Build the circuit and verify the voltage range available. Ensure it can achieve 12V...
1. Calculate the dissipated
power on the regulator and what the junction temperature does the
regulator will go up without heatsink? Assume +5V regulator run at
load current 600mA and ambient temperature is 25 °C.
2. Calculate the thermal resistance sink to ambient if you think
that you need a heatsink for the regulator. Assume the thermal
resistance for thermal interface material is 0.16 °C/W and the
maximum ambient temperature of 45°C.
3. Calculate the thermal resistance sink to ambient....
3. For the regulated power supply shown in Figure 5-3, which is a full-wave bridge rectifier containing ter combined with a Zener diode voltage regulator, determine the load voltage VI, load current Ir, source current Is, Zener current Iz and the ripple voltage at the input and output of the regulator, and r(p-p)y respectively, and the ripple frequency fr a fil- VL Ir. Is Iz=. (d-4)1a Ur(p-P) Is V' 1N4002GP Vout = VL + Iz IL 100 V2 120 V...
Design a boost converter power stage to the following specification: Input voltage Output voltage: Output voltage ripple:max 20mV Load power: Switching frequency: 15kHz 110-125V 300V 1.5kW Calculate: (i) Maximum duty cycle (ii) Minimum duty cycle (iii) Average diode current (iv) Assuming the Rds(on) of the MOSFET is 0.01 Ω, and the diode forward voltage is 0.8V, calculate the approximate efficiency of the circuit. 2. A switching power supply shown in the circuit below has its switch driven by a signal...
Pt
1 Please find voltage and power across RLoad for both 100 ohms and
220 ohms.
Pt 2 What relationship can you deduce between the Resistance
(Rload) value, its power, and the thevenin resistance?
Isrve loorva $47052 {2202&pisal SV + 2202 1901 or 2202
SOLVE PART B
A class B complementary symmetry amplifier using ONE power supply is shown. Let Vcc = 12 V, R1 = R3 = 1 k12, R2 = 1700, Rs = 100 2, and R1 = 8 2. Transistors Qi and Q2 are matched with B = 100. Vcc lic ic R1 AC Load Line Ry 05 VCC Q не 2R DC Load Line Cz Vin R2 İc2 Vo HE Q C Voc R3 2 a) b) Determine the Pload(max)...
a) The DC power supply below is connected to a 110 V RMS, 50 Hz AC mains. The transformer has turns ratio N, : N2 = 10 : 1, and the diodes have forward voltage drop 0.7 V, and the regulator has dropout voltage 1.8 V. We require V 5 V. OUT =2 A GND 110 V rms O A R V Va VC 50 Hz N2 N i. Given the transformer has turns ratio Nį: N2 = 10: 1...
Problem 3: (20 points) A zener-diode voltage regulator circuit is shown belkw zener diode has breakdown voltage Vz 8.0V and the zener resistance is nsumed to be 0 ohms. The power supply voltage Vps can vary between 10V and 14V and the lod resistance Ri can vary between 100 ohms and 1 kohm, 圧 1. Find a value of R such that the zener diode remains properly biased over the range of variation of Vps and RI (hint: the minimum...
Power Supply with Zener Voltage regulator D4 131 12 Vpk Vs 60 Hz 0° D2 D3 2. Simulate the bridge rectifier with three different filter capacitors(1uf, 5μF and 10μF) and observe output waveforms. Compare ripple voltages, estimation vs. simulation values Plot v, and vout waveforms.
Power Supply with Zener Voltage regulator D4 131 12 Vpk Vs 60 Hz 0° D2 D3 2. Simulate the bridge rectifier with three different filter capacitors(1uf, 5μF and 10μF) and observe output waveforms. Compare ripple...
In the circuit below, T1 is rated 12V RMS secondary voltage, D1, D2, D3 &D4 are IN4001 rectifying diodes and RL is 1.8ΚΩ. Given that RI-2202, and R2 1.2KQ, use the formula provided to calculate the output voltage (Vo) of the LM317 voltage regulator. Provide an answer in engineering notation, correct to 3 significant figures. 1 A Vo= 1.25V (1 + R2/ R1) Da AC line C CT input 60 Hz NC D, CI 120 V/12 V R2
In the...
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