Тиристор силовой Т133-400-16
2 793,22 ₽ - 2 815,30 ₽
Сохранить в закладки 1601289819507:
Description | 1. A silicon controlled rectifier or semiconductor controlled rectifier is a four-layer solid-state current-controlling device. The name "silicon controlled rectifier" is General Electric's trade name for a type of thyristor. |
2. SCRs are unidirectional devices (i.e. can conduct current only in one direction) as opposed to TRIACs, which are bidirectional (i.e. charge carriers can flow through them in either direction). SCRs can be triggered normally only by a positive current going into the gate as opposed to TRIACs, which can be triggered normally by either a positive or a negative current applied to its gate electrode. | |
Feature | 1. There are three modes of operation for an SCR depending upon the biasing given to it: Forward blocking mode (off state), Forward conduction mode (on state), Reverse blocking mode (off state) |
2. Thyristor turn-on methods: forward-voltage triggering, gate triggering, dv/dt triggering, temperature triggering, light triggering | |
Application | 1. SCRs are mainly used in devices where the control of high power, possibly coupled with high voltage, is demanded. Their operation makes them suitable for use in medium- to high-voltage AC power control applications, such as lamp dimming, power regulators and motor control. |
2. SCRs and similar devices are used for rectification of high-power AC in high-voltage dc power transmission. They are also used in the control of welding machines, mainly GTAW (gas tungsten arc welding) and similar processes. |
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