How to layout Kelvin switch PCB?

楼123456

How to layout Kelvin switch PCB? [Copy link]

How to route Kelvin type switch PCB?

For example:

For switches like NVH4L020N120SC1 (TO-247-4L), does S1 need to be laid together with S2 when laying copper on the PCB? Or should S1 and S2 be laid apart and then laid together? Or should S1 not be connected together on the PCB and S1 can only be connected to S2 through the inside of the switch? ? ?

qwqwqw2088

How to understand the Kelvin connection?

qwqwqw2088

Kelvin routing is mainly to avoid interference from routing resistance, so it is best not to apply copper.

Where are S1 and S2?

chunyang

You should understand it once you understand the principle of Kelvin connection.