Direct Coupled Amplifier Video Lecture | Analog and Digital Electronics - Electrical Engineering (EE)

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FAQs on Direct Coupled Amplifier Video Lecture - Analog and Digital Electronics - Electrical Engineering (EE)

1. What is a direct coupled amplifier in electrical engineering?
Ans. A direct-coupled amplifier is an amplifier circuit in which the output of one stage is directly connected to the input of the next stage without using any coupling capacitors or transformers.
2. What are the advantages of using direct-coupled amplifiers?
Ans. The advantages of using direct-coupled amplifiers include improved frequency response, reduced distortion, and better efficiency compared to capacitively or inductively coupled amplifiers.
3. How does a direct-coupled amplifier differ from a transformer-coupled amplifier?
Ans. In a direct-coupled amplifier, the output of one stage is connected directly to the input of the next stage without the use of a transformer. In contrast, a transformer-coupled amplifier uses transformers to couple the stages together.
4. What are the limitations of direct-coupled amplifiers?
Ans. Direct-coupled amplifiers may have limitations such as DC offset issues, sensitivity to temperature variations, and the need for careful biasing to ensure proper operation.
5. How can DC offset issues be minimized in direct-coupled amplifiers?
Ans. DC offset issues in direct-coupled amplifiers can be minimized by using feedback techniques, offset nulling circuits, or DC blocking capacitors at the input or output of the amplifier stages.
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