If a regulator IC provides a voltage higher than input, then the converter is knows as ___. 

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RRB ALP CBT 2 Electronic Mechanic Previous Paper: Held on 23 Jan 2019 Shift 1
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  1. Boost 
  2. Buck 
  3. Buffer
  4. Buck Boost

Answer (Detailed Solution Below)

Option 1 : Boost 
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Detailed Solution

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The figure below shows the circuit diagram of the boost converter.

F2 U.B Deepak 26.10.2019 D5

In a boost converter, the output voltage is always higher than the input voltage. 

A boost converter (step-up converter) is a DC-to-DC power converter that steps up voltage (while stepping down current) from its input (supply) to its output (load).

26 June 1

Buck: A buck converter (step-down converter) is a DC-to-DC power converter that steps down voltage (while stepping up current) from its input (supply) to its output (load).

F2 J.P Madhu 16.03.20 D1

Buffer: A voltage buffer circuit is one where input and output voltages are the same, and a current buffer circuit is one where input and output currents are the same.
Example: Common Collector CC is used as a voltage buffer.

Buck-Boost: The buck-boost converter is a type of DC-to-DC converter that has an output voltage magnitude that is either greater than or less than the input voltage magnitude.

F1 Uday 25.9.20 Pallavi D 6

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