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Triac BTA208S600D and BTA208S600F blinking or working unstable

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olek_el

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Hello! Please help me validate the electrical design and the set of the components.

The goal is to create removable modules that could switch the different types of payload:
1. DC MosFET module - switching and PWM of the 9-56V with 4A
2. AC MosFET module - switching and dimming (front and back-edge) of 230V 100W alternate current payload.
3. AC Triak module - switching and dimming of 230V 100W payload.

The biggest problem at this time appears when I connect lamps to the Triac module.
First, when the BTA208S600D triac was used, connected to the triac lamps were blinking ones at the moment when the triac was powered.
After I changed the triac to the BTA208S600F model, this blinking went out, but the glowing and dimming of the lamp became unstable.

Does anybody have ideas or remarks about the circuits?
 

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  • ac_mosfet.png
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