# Could you explain to me how the circuit connection and components is design on the board?

5 years ago
what's teh question again? reading schematics? designing your own PCBs?
wrapth (author)  Sandisk1duo5 years ago
I mean, could you explain to me, about the basic circuit connection between the components on the circuit board. When you see the schematic diagram, why all the components is arrange in that way? What is the advantages if we connect the components by that way? For example the capacitor is connect after the resistor or other components, I wonder why they arrange the components in that way and what is the rules that they have to follow in order to arrange the components. And, could you give me a suggestion about the Topic that I can refer about this circuit design for further understanding. Thanks
5 years ago
i still don't really understand the question... do you want to show me a schematic, and then ask questions about it?
wrapth (author)  Sandisk1duo5 years ago
Ok, I give you an example of schematic diagram. Base on the schematic that i have provided, could you give me a reason why R1 is need to connect in parallel with R2 and C1? What is the advantages by connect them in parallel? Is it will give them a low current? Besides that, why gate logic NAND is need to connect by the R1 & R2? Why do they need to reduce the flow of current to the NAND logic gate? Why don't they just use the current that's really low for the NAND logic rather than use the resistor? I'm sorry if my english is bad. Last but not least, why we need to connect the capacitor(C1) to the output of U1B?
5 years ago
1. R2 is a variable resistor, you can change it's resistance... it is in parallel so that Resistance cannot be higher then the value of R1 you need a variable resistor for the schematic... since i don't really know what the circuit does, i have no clue what it's for (possibly to change the frequency at which it oscillates) connecting the resistors in parallel lowers the resistance, say R1 is 100 ohms, and R2 is 100 ohms, the resistance should be 50 ohms 2. where did you get this schematic? i can't really answer more questions till i know what it does
wrapth (author)  Sandisk1duo5 years ago
I get this schematic from this URL:http://www.aaroncake.net/circuits/chaser.asp
Anyway, thanks alot.
5 years ago
okay, that schematic makes the LEDS blink.... so R2 changes how fast the light blink The NAND gates provide a pulse, to change the function of LEDs the reason for the capacitor; while the capacitor is charging, there is no signal (off), when the capacitor is charged to full capacity, and starts to discharge, there is a signal (on) the cycle repeats, and it turns on and off.... the variable resistor (R2) changes how fast the Capacitor is charged and discharged Any more questions?
wrapth (author)  Sandisk1duo5 years ago
No, thanks my friend.