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Ideal TRIAC with or without forward voltage and on-resistance.
Switches
The TRIAC can conduct current in both directions. It is built using two anti-parallel thyristors and controlled by an external gate signal. The TRIAC is modeled by two ideal switches that close if the voltage is positive and a non-zero gate signal is applied. The conducting switch remains closed until the current becomes zero. A TRIAC cannot be switched off via the gate.
Each of the following parameters may either be a scalar or a vector with the width of the component: