800W three-port two-way SCR light-reducing circuit

Published:2011/5/29 8:42:00 Author:Christina | Keyword: 800W, three-port, two-way, SCR, light-reducing | From:SeekIC

The MBS4991 two-way SCR switch is produced by the Motorola company, you can control the three-port two-way SCR by using it. The 1MΩ resistance can change the three-port two-way SCR's angle of flow from 0°to 170°. When the angle of flow is maximum, the power that adds to the load can be more than 97% of the full power. No matter which position the tone potentiometer is, the first half cycle's angle of flow is the same as the rear half cycle's.



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