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Which transformer is used for impedance matching in transistor coupled amplifier?
- a)step-up
- b)step-down
- c)same turn ratio
- d)different turn ratio
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Which transformer is used for impedance matching in transistor coupled...
Step-down transformer
To achieve impedance matching in a transistor coupled amplifier, a step-down transformer is used. This transformer helps in matching the impedance between the high impedance output of the amplifier and the low impedance input of the next stage.
Impedance matching
- Impedance matching is crucial in electronic circuits to ensure maximum power transfer between different stages of the circuit.
- When the output impedance of one stage does not match the input impedance of the next stage, signal loss and distortion can occur.
Step-down transformer in transistor coupled amplifier
- In a transistor coupled amplifier, the output impedance of the amplifier stage is typically higher than the input impedance of the following stage.
- By using a step-down transformer, the output impedance can be reduced to match the input impedance of the next stage, allowing for efficient power transfer.
Function of step-down transformer
- The step-down transformer reduces the voltage level while increasing the current, effectively lowering the impedance of the output signal.
- This impedance transformation helps in minimizing signal loss and distortion, resulting in improved overall performance of the amplifier circuit.
Conclusion
In conclusion, a step-down transformer is used for impedance matching in a transistor coupled amplifier to ensure optimal power transfer between different stages of the circuit. It helps in reducing impedance mismatches, minimizing signal loss, and improving the efficiency of the amplifier system.
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Which transformer is used for impedance matching in transistor coupled...
Usually the impedance of an output device is a few ohms whereas output impedance of the transistor is several 100 ohms. In order to match the impedance a step down transformer of proper turn’s ratio is used. The impedance of secondary of the transformer is made equal to the load impedance and primary impedance equal to the output impedance of the transistor.
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Which transformer is used for impedance matching in transistor coupled amplifier?a)step-upb)step-downc)same turn ratiod)different turn ratioCorrect answer is option 'B'. Can you explain this answer?
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