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ACST310-8B in light dimming application

DLoha
Associate

Hi,

I wish to use ACST310-8B in light dimming application.

1. As shown in typical diagram of Phase Angle control, in the datasheet of ACST310-8B, can we avoid using choke/inductor in series with load?

I believe this choke/inductor is needed for di/dt protection, EMI protection. Here lighting load is incandescent lamp.

Reference: Figure 17, Page 8 of 14

URL: https://www.st.com/resource/en/datasheet/acst310-8b.pdf

2. Since this part is mentioned snubber-less, can we avoiding snubber circuit?

Reference: Please refer "The circuit can thus be simplified, with no need for MOV or snubber circuits."

URL: https://www.st.com/en/thyristors-scr-and-ac-switches/overvoltage-protected-acst-series.html

Also please find attached schematic “Phase_Dimmer_Schematic_using_ACST310-8B.png�? for your reference

3. Is there any better way to protect ACST310-8B from damages caused due to accidental short circuit/excessive current other than fast blow glass fuse?

Thanks in advance

Regards,

Dinesh

0690X000009joQjQAI.png

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