Again Hi
Ok
No problem with that . but i want to talk about one of my experiences : when i wanted to build an oscillator with 500KHZ frequency some month ago , do you know , that what i saw ? a magic behavior ! it didn't oscillate ! simply ! but do you know what did i do to improve it ? iused a capacitor with 10uf value , near of my oscillator supply . ( my power supply had 4700uf capacitor at it's out put ) . but when i used that simple capacitor nearby my transistor , it oscillated as well as !!!!! the equivalent circuit of wire , was the cause of that event ! i didn't say this things for fun! my mean is that at that low frequency it was big problem ! so when you want work with logic circuits , or Miro controllers , what have oscillator internally , ( such as 16MHZ with crystal ) you should put a capacitor at nearest way with their supply pins !
And about polygon : you can use polygon with ground as well as . it will help to the behavior of your circuit .
And about latest thing that you said :
What is your mean by : "where VS is 30 volt " ?????!!!!!!!
By the way , i forgot to say it , that do you want the reason of the effect of that capacitor ? it is possible that you think , that it is just a simple DC voltage , but not infact ! the current has high frequency components when you need it as an oscillator , thus the wire will try to reduce this components !
Good luck
Goldsmith