Single pole dual throw switch PSpice model

Orcad Capture symbol plus Orcad PSpice model for

SPDT switch.

Thanks goes to HappySeeker from orcad.pe.kr

Link: http://setrst.byethost10.com/_blog/SW_SPDT.zip

Harmonic Identities

Asin(x) + Bcos(x) ≡ Rsin(x + α)

Asin(x) – Bcos(x) ≡ Rsin(x – α)

Acos(x) + Bsin(x) ≡ Rcos(x – α)

Acos(x) – Bsin(x) ≡ Rcos(x + α)

R=√(A^2+B^2) ; α=arctan(B/A)

Air flow inside computer case

source:https://www.techpowerup.com/forums/attachments/upload_2016-1-18_13-56-17-png.71169/