stuncer
Newbie
As you know, when 30v voltage drops on a 390r resistor, 2.3W power is generated and this resistance is min. need to choose 3W
But if this voltage occurs for a short time like 50nS in a 50mS period, can 1/4W or even 1/8W be used?
I also have one more question, I wanted to ask here in order not to make the Forum busy.
As you know, in the snubber part, a film type capacitor is used. But film type capacitors occupy a lot of space on the pcb in terms of the area they cover.
Moreover, if we are talking about the control of 4 three-phase motors, it is necessary to allocate a min.10cmX10cm area on the pcb to capacitors.
I couldn't find any clear information in my research, can I use a Multilayer (Ceramic) capacitor instead of a film type capacitor in the snubber part?
The dimensions of the 10nF 1000VDC multilayer capacitor are almost 1/20 smaller than the film type capacitor
But if this voltage occurs for a short time like 50nS in a 50mS period, can 1/4W or even 1/8W be used?
I also have one more question, I wanted to ask here in order not to make the Forum busy.
As you know, in the snubber part, a film type capacitor is used. But film type capacitors occupy a lot of space on the pcb in terms of the area they cover.
Moreover, if we are talking about the control of 4 three-phase motors, it is necessary to allocate a min.10cmX10cm area on the pcb to capacitors.
I couldn't find any clear information in my research, can I use a Multilayer (Ceramic) capacitor instead of a film type capacitor in the snubber part?
The dimensions of the 10nF 1000VDC multilayer capacitor are almost 1/20 smaller than the film type capacitor