Thyristor characteristics

Thyristor characteristics

1. The average value of a 50 Hz sinusoidal half wave current that can continuously pass between the anode and cathode under certain conditions under rated on state average current IT.

2. The forward blocking peak voltage VPF can repeatedly apply the forward peak voltage at both ends of the thyristor when the control pole is open without triggering a signal and the anode forward voltage has not exceeded the conduction voltage. The peak forward voltage borne by the thyristor cannot exceed the parameter value given in the manual.

3. Reverse blocking peak voltage VPR When the thyristor is in a reverse off state with reverse voltage applied, the reverse peak voltage can be repeatedly applied to both ends of the thyristor. When using, the parameter value given in the manual cannot be exceeded.

4. The minimum control electrode current and voltage required for the thyristor to transition from off state to on state when a certain voltage is applied between the anode and cathode at the specified ambient temperature, Ig1 and VGT, respectively.

5. Maintain the current IH at the specified temperature, control the pole circuit, and maintain the minimum anode forward current necessary for thyristor conduction. Many new types of thyristor components have emerged one after another, such as fast thyristors suitable for high-frequency applications, bidirectional thyristors that can be controlled in both directions with positive or negative trigger signals, thyristors that can be turned on with positive trigger signals, thyristors that can be turned off with negative trigger signals, and so on.