Smart Product Design Lab - Power Distribution Board v2.1

features

• 16 JST XH plugs with 3.3v ground and 5 volts
• 8 molex 254 plugs for servos

user guide image

link to user guide image

link to schematic

link to image of PCB traces

assembly

assembly instructions

current limits:

• board total: 16 amps (theoretical) ??? amps (tested), limited by the traces and main battery screw terminals
• 5-3: 2 amps (theoretical) ??? amps (tested), limited by the HW-411 buck voltage regulator
• 3.3-1 + 5-1: 1 amp (theoretical) ??? amps (tested), limited by the TLV761 linear voltage regulator
• 3.3-2 + 5-2: 1 amp (theoretical) ??? amps (tested), limited by the TLV761 linear voltage regulator

images

KiCAD Symbols

simple symbol

detailed symbol

buying PCBs and components

1x set of components from bill of materials

2x tamiya connectors for batteries (with wires)

1x main power switch (for example 141-RCA1913F1ABLKBLKWHT3-ND)

1x fuse holder (with wires) and fuse

1x PCB from (gerber files)

JST XH socket housings (16) 455-2219-ND

JST XH socket crimps (48) 455-1135-1000-ND

4 inches of 18 AWG wire

small flathead screwdriver

JST XH crimper