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Unlatchable four polarisation mode triac - has approximately equal gate currents in all four modes
Unlatchable four polarisation mode triac - has approximately equal gate currents in all four modes
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机译:不可锁存的四极化模式双向可控硅-在所有四种模式下具有近似相等的栅极电流
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摘要
The triac, which can be unlatched by a suitable pulse to the gate electrode in any of its four polarisation operating modes, has a sensitivity which is approximately equal in each mode. The physical structure is approximately the same as that of orthodox triacs, except that there is no overlap between the outermost 'N' doped layers of the triac (N1,-N3). An intrusion (10) is formed at the innermost end of the lower layer (N2) penetrating through the intermediate 'P' and into the centre 'N' type layer (N2). Gate currents required to effect unlatching for the four modes are approximately, 11,11,17, and 17mA.
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