2019-09-29 10:47 PM
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