1. General concepts
Mathematically, amplification corresponds to a multiplication operation. Ideally, it is simply the product of an original signal and a constant, resulting in a new signal with greater amplitude and sometimes of a different nature (current-to-voltage conversion, for example).
1.1 Voltage amplifier
Voltage amplification is a fundamental function in electronics. Whether from a sensor (which converts a physical quantity into an electrical quantity) or a receiver, information – received and converted into an electrical quantity – is often too weak in amplitude to be processed further. Amplification is therefore necessary.
Voltage is generally the electrical quantity that carries information, which is why most amplifiers in electronics are...
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
General concepts
Operational amplifier
Article included in this offer
"Electronics"
(
262 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
Bibliography
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
