PSpice simulations: Half wave power control by Thyristor - See "Appunti" section for more details (in italian only) -

Here you can find a collection of electric and electronic circuits realized by the PSpice tool or by Cadence ORCAD Capture Lite. You can freely download, use or modify all the stuff you'll find here. Anyone who wishes to collaborate and share his experience, i invited to send, his works.
OrCAD 17.2 PSpice Designer Lite Software, it's freely downlonable, after registation, here
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SCR power control

Half wave power control by Thyristor

The SCR switches on as the current reaches about 1.9mA. In the first circuit this happens earlier because, due to the different ratio between R_p1A, R_p1B ed R_p2A, R_p2B, results that V_--G1-- > V_--G2--

SCR: Measure of the SCR's parameters

See "Appunti" section for more details (in italian only)

Measure of the SCR's Latching Current I_H Measure of the SCR's Holding Current I_H Measure of the SCR's Gate Trigger Current I_GT Measure of the SCR's Forward Breakover Voltage V_BRF

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