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Discussion History

Power Control Unit

Assembly

Sequential-switching shunt regulator that holds the bus at 31 V and manages battery charge. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Power Control Unit parts and their functions

4 top-level parts · 485 parts in total · full bill of materials below
Power Control Unit parts diagram: 1 bare PCB, 2 power MOSFET, 3 relay, 4 SMD passive (R/C/L). 485 parts in 4 assemblies.
Power Control Unit parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Bare PCB 3× Unpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it.
2 Power MOSFET 24× Power MOSFET: a voltage-controlled semiconductor switch that turns high currents on and off at high speed in converters and motor drives.
3 Relay 8× Electromechanical switch in which a small coil current closes or opens contacts rated for a much larger load, isolating control circuits from what they switch.
4 SMD Passive (R/C/L) 450× Surface-mount resistors, capacitors, and inductors, typically in 0402 to 1206 packages, that set voltages, filter noise, and time signals on a circuit board.

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
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Bill of materials for Power Control Unit

4 top-level lines · 4 rows shown · 485 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Bare PCB pcb-bare 3× 3 · part
2 Power MOSFET mosfet 24× 24 · part
3 Relay relay 8× 8 · part
4 SMD Passive (R/C/L) smd-passives 450× 450 · part

Where the power control unit is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Electrical Power Subsystem

Sourcing: possible vendors

Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks