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  2. Thyristor - Wikipedia

    en.wikipedia.org/wiki/Thyristor

    A thyristor (/ θ aɪ ˈ r ɪ s t ər /, from a combination of Greek language θύρα, meaning "door" or "valve", and transistor [1]) is a solid-state semiconductor device which can be thought of as being a highly robust and switchable diode, allowing the passage of current in one direction but not the other, often under control of a gate electrode, that is used in high power applications ...

  3. Class-D amplifier - Wikipedia

    en.wikipedia.org/wiki/Class-D_amplifier

    A class-D amplifier or switching amplifier is an electronic amplifier in which the amplifying devices (transistors, usually MOSFETs) operate as electronic switches, and not as linear gain devices as in other amplifiers. They operate by rapidly switching back and forth between the supply rails, using pulse-width modulation, pulse-density ...

  4. Switching control techniques - Wikipedia

    en.wikipedia.org/wiki/Switching_Control_Techniques

    Switching Control Techniques address electromagnetic interference (EMI) mitigation on power electronics (PE). The design of power electronics involves overcoming three key challenges: [1] Also, the use of PE introduces crucial drawbacks into the electrical grid regarding the EMI, that must be considered during its design and operation ...

  5. Transistor - Wikipedia

    en.wikipedia.org/wiki/Transistor

    A small current at the base terminal, flowing between the base and the emitter, can control or switch a much larger current between the collector and emitter. A field-effect transistor (FET) has terminals labeled gate, source and drain. A voltage at the gate can control a current between source and drain.

  6. Variable-gain amplifier - Wikipedia

    en.wikipedia.org/wiki/Variable-gain_amplifier

    A variable-gain (VGA) or voltage-controlled amplifier (VCA) is an electronic amplifier that varies its gain depending on a control voltage (often abbreviated CV). VCAs have many applications, including audio level compression, synthesizers and amplitude modulation. A crude example is a typical inverting op-amp configuration with a light ...

  7. Integrated gate-commutated thyristor - Wikipedia

    en.wikipedia.org/wiki/Integrated_gate-commutated...

    Electronic symbol. The integrated gate-commutated thyristor (IGCT) is a power semiconductor electronic device, used for switching electric current in industrial equipment. It is related to the gate turn-off (GTO) thyristor. It was jointly developed by Mitsubishi and ABB. [ 1 ] Like the GTO thyristor, the IGCT is a fully controllable power ...

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  9. Solid-state relay - Wikipedia

    en.wikipedia.org/wiki/Solid-state_relay

    Solid-state relay. A solid state relay (SSR) is an electronic switching device that switches on or off when an external voltage (AC or DC) is applied across its control terminals. They serve the same function as an electromechanical relay, but solid-state electronics contain no moving parts and have a longer operational lifetime.