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Definition of "Triac" |
A thyristor that can conductor in both directions. Because of this, it is useful for controlling alternating current. It is the equivalent of two SCRs in parallel with opposite polarities. / A three-terminal device that is similar to two SCRs back to back with a common gate and common terminals. Although similar in construction and operation to the SCR, the triac controls and conducts current flow during both alternations of an ac cycle. [Manufacturers of Triacs] / Triode for Alternating Current, , / Triac, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor. / A three-electrode semiconductor device that will conduct in either direction when triggered by a positive or negative signal at the gate electrode. / Network Control Center is one or more locations from which network monitoring and control, or network management, is exercised over a computer, telecommunication or satellite network. / (1) a power switch that is functionally a pair of converter-grade thyristors connected in anti-parallel. Triacs are mainly used in phase control applications such as dimmer switches for lighting. Because of the integration, the triac has poor reapplied dv/dt , poor gate current sensitivity at turn-on, and longer turn-on time. They are primarily used for AC power control with resistive loads, such as in light dimmers. |
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