Arduino power management section

Hello i am using custom board and i have three lines. VBUS, VBAT & VSYS. How should i use the switch combination in order to selectively use the lines. The description of the lines are as below:

  1. V-BUS : 5 volt supply from USB.
  2. V-BATT : Voltage supply from battery.
  3. VSYS : Regulated 3.3 volt to complete system. This is generated from V-BATT and V-BUS both.
    I have made a truth table with all possible combinations and i want to get condition no 4,6 & 7. Rest other conditions are not required. The truth table is attached below:

Truth table

Hello Shivamiitk

Read the data sheet of the custom board and check your system requirements.

Hello Paul ,

By custom board i meant that i am using a board that i have designed. So what i need is i want to use a switch combination such that i acheive these 4,6 & 7 conditions.
I want to introduce switches in these three lines such that i can realize these three conditions. These switches can be any switches maybe SPST, SPDT or DPST.