Question
Download Solution PDFA special case of non-inverting amplifier in which all of the output voltage is fed back to the inverting input of the op-amp is called:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFVoltage Follower:
- A voltage follower is an op-amp circuit whose output voltage straight away follows the input voltage. i.e. output voltage equivalent to the input voltage.
- The Op-amp circuit does not provide any amplification thus, its voltage gain is unity.
- The voltage follower is used as a buffer amplifier, isolation amplifier, unity gain amplifier as the output follows the input.
- The voltage follower provides no alternation or no amplification but only buffering.
Characteristics:
- High input impedance
- Low output impedance
- Current Gain & power gain high
- Voltage gain unity
Derivation:
The Voltage follower circuit is a Non-Inverting Amplifier that has negative feedback.
The gain of Non-Inverting Amplifier is given by:
For voltage follower, Rf is 0
Hence gain (A) = 1
Last updated on Jun 16, 2025
-> SSC JE Electrical 2025 Notification will be released on June 30 for the post of Junior Engineer Electrical/ Electrical & Mechanical.
-> Applicants can fill out the SSC JE application form 2025 for Electrical Engineering from June 30 to July 21.
-> SSC JE EE 2025 paper 1 exam will be conducted from October 27 to 31.
-> Candidates with a degree/diploma in engineering are eligible for this post.
-> The selection process includes Paper I and Paper II online exams, followed by document verification.
-> Prepare for the exam using SSC JE EE Previous Year Papers.