This pursuit of efficiency frequently leads to the use of power-control circuits based on thyristors with 60-Hz phase-angle triggering. Cheap and robust, thyristor phase-angle circuits can easily ...

This SCR phase control works much like the common TRIAC ... but is polarity sensitive so it does not lend itself to TRIAC control. However, if two such PUT trigger circuits are employed for ...

The control circuit in Figure 1a allows you to manually adjust the power delivered to a load. By changing the setting of potentiometer R 3, you change the phase angle at which the thyristor (Q 3) ...

America Semiconductor, LLC announced the 50RIA Series of medium power, phase control thyristors ... and speed control circuits. Parts are also highly appropriate for use in battery chargers ...