Figure 2From: Non-oxidized porous silicon-based power AC switch peripheriesI - V characteristic of the TRIAC. The low and high impedance states are denoted as ON and OFF, respectively. If the anode of the TRIAC is positively biased against the cathode, the ‘+’ sign is used; else, the ‘−’ sign is adopted. The bidirectional arrows indicate the switching from one state to the other in accordance to the signal applied to the gate.Back to article page