Main electrical parameters of thyristor
module have positive turning point voltage vbo, positive average leakage current ifl, reverse leakage current irl, off state repetitive peak voltage VDRM, reverse repetitive peak voltage VRRM, positive average pressure drop vf, average current state it, gate trigger voltage vg, gate trigger current ig, gate reverse voltage and maintain current ih, etc.
Thyristor module is turning voltage vbo positive turning point voltage thyristor module vbo refers to the junction temperature of 100 ℃ and the gate (rated
Under the condition of open circuit in the anode (
And the cathode (
Between sine half-wave forward voltage, make its off state into conducting state corresponds to the peak voltage.
Thyristor module off state repetitive peak voltage VDRM off state VDRM repetitive peak voltage, refers to the thyristor module when the forward blocking, allow to add in a, k (
Or t1, t2)
The largest peak voltage electrode.
The voltage is about positive turn after deducting 100 v voltage value.
Thyristor module state it state the average current, average current it refers to the environment temperature and the standards set by cooling conditions, the normal work of the thyristor module a, k (
Or t1, t2)
The average of the electrode is allowed by current.
Reverse breakdown voltage VBR reverse breakdown voltage is refers to under the rated junction temperature, thyristor sine half-wave reverse voltage applied between the anode and cathode, when the reverse leakage current increase sharply against the peak voltage.
Reverse repetitive peak voltage thyristor module VRRM VRRM reverse repetitive peak voltage, is refers to the thyristor in the cut-off gate g, allow to add in a, k interelectrode maximum peak reverse voltage.
The voltage is about reverse breakdown voltage minus 100 v peak voltage.
Thyristor module is average voltage drop vf is average voltage drop vf is also called the state average voltage or pressure drop on state vt, refers to the environment temperature and the standards set by cooling conditions, when the current of thyristor is rated current, the voltage drop between the anode and a cathode k average, usually to 0.
4 to 1.
Thyristor module gate trigger voltage VGT gate trigger VGT, refers to the provisions of the environmental temperature and brake pipe between anode and cathode for certain values of the forward voltage condition, make the thyristor from the blocking state into conducting state the minimum needed to gate dc voltage, the general is 1.
Around 5 v.
Thyristor module gate trigger current igt gate trigger current igt, refers to the provisions of the environment temperature and the brake pipe between anode and cathode for voltage under the condition of a certain value, the thyristor from blocking state into conducting state required minimum gate dc current.
Reverse voltage thyristor module gate gate reverse voltage is a favorite on thyristor gate voltage rating, generally not more than 10 v.
Thyristor module to maintain current ih maintain current ih refers to maintain the minimum current thyristor conduction.
When the forward current is less than ih, conduction of the thyristor will automatically shut off.
Thyristor module off state repetitive peak current idr off state idr repetitive peak current, is refers to the thyristor in the off state of the maximum average leakage current value, is generally less than 100 mu (
Thyristor module reverse repetitive peak current irrm irrm repetitive peak current, is refers to the thyristor in the off state of the reverse leakage current value biggest, generally less than 100 mu.
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