|
Switch Mode (other)
Switch mode, switched mode or switching mode may refer to: * Switch-mode amplifier * Switch-mode converter * Switch-mode power supply * Switch-mode regulator See also * Mode switch (computing) * Switch (other) * Mode (other) * Linear mode (other) {{disamb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Switch-mode 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 modulation, or related techniques to produce a pulse train output. A simple low-pass filter may be used to attenuate their high-frequency content to provide analog output current and voltage. Little energy is dissipated in the amplifying transistors because they are always either fully on or fully off, so efficiency can exceed 90%. History The first class-D amplifier was invented by British scientist Alec Reeves in the 1950s and was first called by that name in 1955. The first commercial product was a electronic kit, kit module called the Sinclair X-10, X-10 released by Sinclair Radionics in 1964. However, it had an output power of only 2.5 wat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
