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A TRIAC (triode for alternating current; also bidirectional triode thyristor or bilateral triode thyristor [1]) is a three-terminal electronic component that conducts current in either direction when triggered. The term TRIAC is a genericised trademark.
A thyristor dimmer rack An electrical schematic for a typical SCR-based light dimmer Solid-state , or semiconductor , dimmers were introduced to solve some of these problems. Semiconductor dimmers switch on at an adjustable time (phase angle) after the start of each alternating-current half-cycle, thereby altering the voltage waveform applied ...
An HVDC thyristor valve tower 16.8 m tall in a hall at Baltic Cable AB in Sweden A battery charger is an example of a piece of power electronics. Power grid designer in front of a newly installed 880kV thyristor valve array A PCs power supply is an example of a piece of power electronics, whether inside or outside of the cabinet.
The most common application is in dimmer switches for domestic lighting control. For industrial applications previously, extremely expensive and heavy multi-tapped transformers were used as the supplies for such elements, with the corresponding winding tap being connected to the element to produce the desired temperature. This limited the ...
The dimmer switch used in conjunction with a dimmable CFL must be matched to its power consumption range; [58] many dimmers installed for use with incandescent bulbs do not function acceptably below 40 W, whereas CFL applications commonly draw power in the range 7–20 W. Dimmable CFLs have been marketed before suitable dimmers are available.
The effect of a time-varying electric field, which induces a magnetic field just as the motion of electrical charges does. display device Any device that displays data from an information system, such as a watch readout or an automatic scoreboard. dissipation The loss of energy in a system, such as dielectric loss in a capacitor. dissolved gas ...
But did you know that even when they're turned off, appliances and electronic gadgets gobble up energy, ... The average U.S. household spends about $1,900 a year on energy costs, according to the ...
It is used in switching power supplies in high-power applications: variable-frequency drives (VFDs) for motor control in electric cars, trains, variable-speed refrigerators, and air conditioners, as well as lamp ballasts, arc-welding machines, photovoltaic and hybrid inverters, uninterruptible power supply systems (UPS), and induction stoves.