Speed Controller

Assembly

Green Printed Circuit Board and Components.JPG · Commons ↗ Report photo

Footswitch PWM module varying handpiece motor frequency from 50–150 Hz based on pedal position.

Direct parts	4
Total parts	4
Used in	1 assembly
Class	Assembly

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Footswitch PWM module varying handpiece motor frequency from 50–150 Hz based on pedal position. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Speed Controller parts and their functions

4 top-level parts · 4 parts in total · full bill of materials below

Speed Controller parts diagram: 1 control PCB, 2 footswitch input, 3 motor driver chip, 4 display LCD. 4 parts in 4 top-level items. — Speed Controller parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Control PCB	1×	ARM Cortex-M0 MCU with PWM and sensor inputs
2	Footswitch Input	1×	Analog potentiometer or Hall-effect sensor
3	Motor Driver Chip	1×	Half-bridge MOSFET gate driver
4	Display LCD	1×	Small LCD showing frequency and operation mode

3D model

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Build & assembly graph

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Bill of materials for Speed Controller

4 top-level lines · 4 rows shown · 4 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Control PCB	pmu-machine-control-pcb	1×	1	·	part
2	Footswitch Input	pmu-machine-footswitch-input	1×	1	·	part
3	Motor Driver Chip	pmu-machine-motor-driver-chip	1×	1	·	part
4	Display LCD	pmu-machine-display-lcd	1×	1	·	part

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Where the speed controller is used

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

Personal Care & Grooming 1 Permanent Makeup Machine

Used in 1 assembly

Permanent Makeup Machine

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

Vendor	HQ	Specialty	MOQ	Lead 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