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Active Components
are electronic components that
can change their basic
electrical characteristics in a powered electrical circuit, i.e., a
change in their input signal can result in a change in their electrical
behavior. Most active components today are in the form of
semiconductors.
Active components have the
ability to rectify, switch, or amplify signals. Aside from the input
signal, most active components require a power supply in order to
perform their assigned functions. They
are often used in dynamic applications such as rectification, switching,
amplification, modulation, etc.
Examples of
active components are diodes, bipolar transistors, field effect
transistors, and thyristors.
Components
that are not active are referred to as 'passive
components'.
For more
information about active components, visit each of the links below.
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