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Silicon diode are used in a two diode full wave rectifier circuit to supply a load with 12v DC assuming ideal diodes and the load resistance is 12 ohms calculate
a) the transformer secondary voltage
b) the load ripple value
c) the efficiency of the rectifier?
a) the transformer secondary voltage
b) the load ripple value
c) the efficiency of the rectifier?
Most Upvoted Answer
Silicon diode are used in a two diode full wave rectifier circuit to s...
Transformer Secondary Voltage Calculation:
The transformer secondary voltage (Vsec) can be calculated using the formula:
Vsec = Vload / (2 * 0.7)
where Vload is the DC output voltage required (12V in this case) and 0.7 is the voltage drop across one diode.
Substitute the values:
Vsec = 12 / (2 * 0.7) = 8.57V
Load Ripple Value Calculation:
The load ripple voltage can be calculated using the formula:
Vripple = Vsec / (2 * f * C * Rload)
where f is the frequency of the AC input, C is the filter capacitor value, and Rload is the load resistance.
Assuming a standard frequency of 50Hz and a typical filter capacitor value of 1000uF (1mF):
Vripple = 8.57 / (2 * 50 * 1e-3 * 12) = 0.595V
Rectifier Efficiency Calculation:
The efficiency of a rectifier can be calculated using the formula:
Efficiency = (DC output power) / (AC input power)
Since the load resistance is 12 ohms, the DC output power can be calculated as:
Pout = Vload^2 / Rload = 12^2 / 12 = 12W
The AC input power can be calculated as the product of the transformer secondary voltage and current:
Pin = Vsec * I
Since the load resistance is 12 ohms and the load current can be calculated as:
I = Vload / Rload = 12 / 12 = 1A
Substitute the values:
Pin = 8.57 * 1 = 8.57W
Now, calculate the efficiency:
Efficiency = 12 / 8.57 = 1.4 or 140% (which is not possible in practical scenarios due to losses)
In conclusion, the transformer secondary voltage is 8.57V, the load ripple value is 0.595V, and the rectifier efficiency is calculated to be 140%.
The transformer secondary voltage (Vsec) can be calculated using the formula:
Vsec = Vload / (2 * 0.7)
where Vload is the DC output voltage required (12V in this case) and 0.7 is the voltage drop across one diode.
Substitute the values:
Vsec = 12 / (2 * 0.7) = 8.57V
Load Ripple Value Calculation:
The load ripple voltage can be calculated using the formula:
Vripple = Vsec / (2 * f * C * Rload)
where f is the frequency of the AC input, C is the filter capacitor value, and Rload is the load resistance.
Assuming a standard frequency of 50Hz and a typical filter capacitor value of 1000uF (1mF):
Vripple = 8.57 / (2 * 50 * 1e-3 * 12) = 0.595V
Rectifier Efficiency Calculation:
The efficiency of a rectifier can be calculated using the formula:
Efficiency = (DC output power) / (AC input power)
Since the load resistance is 12 ohms, the DC output power can be calculated as:
Pout = Vload^2 / Rload = 12^2 / 12 = 12W
The AC input power can be calculated as the product of the transformer secondary voltage and current:
Pin = Vsec * I
Since the load resistance is 12 ohms and the load current can be calculated as:
I = Vload / Rload = 12 / 12 = 1A
Substitute the values:
Pin = 8.57 * 1 = 8.57W
Now, calculate the efficiency:
Efficiency = 12 / 8.57 = 1.4 or 140% (which is not possible in practical scenarios due to losses)
In conclusion, the transformer secondary voltage is 8.57V, the load ripple value is 0.595V, and the rectifier efficiency is calculated to be 140%.
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Silicon diode are used in a two diode full wave rectifier circuit to supply a load with 12v DC assuming ideal diodes and the load resistance is 12 ohms calculate a) the transformer secondary voltage b) the load ripple valuec) the efficiency of the rectifier?
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Silicon diode are used in a two diode full wave rectifier circuit to supply a load with 12v DC assuming ideal diodes and the load resistance is 12 ohms calculate a) the transformer secondary voltage b) the load ripple valuec) the efficiency of the rectifier? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Silicon diode are used in a two diode full wave rectifier circuit to supply a load with 12v DC assuming ideal diodes and the load resistance is 12 ohms calculate a) the transformer secondary voltage b) the load ripple valuec) the efficiency of the rectifier? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Silicon diode are used in a two diode full wave rectifier circuit to supply a load with 12v DC assuming ideal diodes and the load resistance is 12 ohms calculate a) the transformer secondary voltage b) the load ripple valuec) the efficiency of the rectifier?.
Silicon diode are used in a two diode full wave rectifier circuit to supply a load with 12v DC assuming ideal diodes and the load resistance is 12 ohms calculate a) the transformer secondary voltage b) the load ripple valuec) the efficiency of the rectifier? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Silicon diode are used in a two diode full wave rectifier circuit to supply a load with 12v DC assuming ideal diodes and the load resistance is 12 ohms calculate a) the transformer secondary voltage b) the load ripple valuec) the efficiency of the rectifier? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Silicon diode are used in a two diode full wave rectifier circuit to supply a load with 12v DC assuming ideal diodes and the load resistance is 12 ohms calculate a) the transformer secondary voltage b) the load ripple valuec) the efficiency of the rectifier?.
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