7th Week

Last week, i had tested the circuit using li ion battery and its show a good result.

# Now, what i need to do is design a PCB board using PCB EXPRESS software. Actually there got many software that can be used to design the PCB board. But, i prefer this software because its simple and easy to find the components.

* For your information, this software is follow the strip board layout which mean every holes to put the components is close to each other.

Example of Strip Board

Regulate IC Circuit

# Below i show you my PCB design with a complex circuit

From all view.

Bottom View

Top View

• Red = Copper layer (connection layer)
• Yellow = Top Layer (components places)
• Green = Another Layer (jumper)
  As you can see, we are using 1 short jumper for this circuit because we do not have any idea on how to cross the copper layer. We design it very complex to make its smaller so that we are easily put it in a small case.
  
  
  

  Charging Controller Circuit

  
  # And this one is for battery charging controller circuit.
  
  

  

  All View

  

  Bottom View

  
  

  
  

  
  This circuit is quite simple because we are using programming IC that already set with protection for Li ion battery. The LED will show the charging management.
  
  # Red = Battery Empty
  # Blue = Charging
  # Green = Battery Full
  
  The description is same as the regulate IC circuit