Open AccessRefinement of the method for selecting the width of the conductor of printed circuit boards on a metal base, working in the absence of convection
Author(s) -
Aleksey V. Kostin
Publication year - 2021
Publication title -
fizika volnovyh processov i radiotehničeskie sistemy
Language(s) - English
Resource type - Journals
eISSN - 2782-294X
pISSN - 1810-3189
DOI - 10.18469/1810-3189.2021.24.3.80-91
Subject(s) - electrical conductor , printed circuit board , conductor , base (topology) , electrical element , process (computing) , computer science , mechanical engineering , electrical engineering , engineering drawing , electronic engineering , engineering , geometry , mathematics , mathematical analysis , operating system
The article proposes a refined method for calculating the width of the conductors of printed circuit boards on a metal base for the onboard devices of spacecraft, depending on the current flowing. The constructed refined mathematical model of the process of conductive heat exchange between the conductors and the metal base is described. The results of calculations of various, most common, locations of layers of printed circuit boards are presented. An analysis was carried out and a refined methodology was developed based on the results obtained. It allows you to easily (without complicate calculations) calculate the necessary values of the width of conductors. This technique is based on graphical methods, but allows you to perform technical calculations with sufficient accuracy. Accuracy is achieved by using special formulas that simplify the determination of the value of a physical quantity on a logarithmic scale. The disadvantages of the proposed method are indicated.