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Three-Phase Inverter Stage

Assembly

Power stage that switches battery voltage into the three motor phases under field-oriented control, the largest heat source on the board. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Three-Phase Inverter Stage parts and their functions

5 top-level parts · 23 parts in total · full bill of materials below
Three-Phase Inverter Stage parts diagram: 1 power MOSFET, 2 gate driver IC, 3 DC-link capacitor, 4 phase current sensor, 5 power busbar. 23 parts in 5 top-level items.
Three-Phase Inverter Stage parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Power MOSFET 12× Two banks per phase
2 Gate Driver IC 3× One per half-bridge
3 DC-Link Capacitor 4× DC-link capacitors
4 Phase Current Sensor 3× Phase current feedback
5 Power Busbar 1× Battery and phase busbars

3D model

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Build & assembly graph

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Bill of materials for Three-Phase Inverter Stage

5 top-level lines · 5 rows shown · 23 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Power MOSFET mosfet 12× 12 · part
2 Gate Driver IC gate-driver-ic 3× 3 · part
3 DC-Link Capacitor self-balancing-unicycle-bulk-cap 4× 4 · part
4 Phase Current Sensor self-balancing-unicycle-current-sensor 3× 3 · part
5 Power Busbar self-balancing-unicycle-busbar 1× 1 · part

Where the three-phase inverter stage is used

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

Used in 1 assembly

Control Board

Sourcing: possible vendors

Browse the supplier directory → 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 $1–$200. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳JLCPCB
jlcpcb.com ↗ 		Shenzhen, CN PCB fabrication 100 pcs 2–4 wks
🇨🇳PCBWay
pcbway.com ↗ 		Shenzhen, CN PCB fab & assembly 100 pcs 2–4 wks
🇨🇳Shennan Circuits
scc.com.cn ↗ 		Shenzhen, CN PCB manufacturer 100 pcs 2–4 wks
🇮🇳Shogini Technoarts
shogini.com ↗ 		Mumbai, IN PCB manufacturer 100 pcs 2–4 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 100 pcs 2–4 wks