Motorspeed control

baleshwarece-jpg·PCB_PROJECTS·Day4_MotorSpeedController/motorspeed control.kicad_pcb

Motorspeed control PCB layout, top view — open source board by baleshwarece-jpg

About the Motorspeed control PCB

Motorspeed control is an open source PCB design by baleshwarece-jpg, published on GitHub. It is a 2-layer board measuring 70 × 40 mm, with 15 components from 10 distinct parts.

Other key parts include the NE555P. By type, the board carries 4 diodes, 3 capacitors, 3 resistors, 2 connectors, 1 IC and 1 transistor.

From the project

30-Days-PCB-Design-Challenge

NE555P Timer IC TIP122 Transistor Diode (1N4007) Capacitor Resistor LED * Screw Terminals

Generates PWM signal for motor speed variation Adjustable motor speed control TIP122 handles higher motor current LED indicates power/status * Protection diode prevents back EMF damage

This project focuses on designing a motor speed control PCB using the NE555 timer IC for PWM generation. By adjusting the control input, the duty cycle changes, allowing smooth variation of DC motor speed. The TIP122 transistor acts as the driving stage for handling motor load efficiently. This project helped in…

Motorspeed control, from the project README — From the project README

Main components on the Motorspeed control

Motorspeed control bill of materials (BOM)

15 components, 10 distinct parts.

Qty	Part	Footprint	Refs
1	NE555P	DIP-8_W7.62mm	U1
1	TIP122	TO-220-3_Vertical	Q1
2	Screw_Terminal_01x02	TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm	J1, J2
1	100k	Potentiometer_Alps_RK163_Single_Horizontal	RV2
1	LED	LED_D5.0mm	D2
3	1N4007	D_DO-41_SOD81_P10.16mm_Horizontal	D3, D4, D5
1	1000uF	CP_Radial_D10.0mm_P5.00mm	C1
2	100NF	C_Disc_D4.7mm_W2.5mm_P5.00mm	C2, C3
1	2.2k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R1
2	1K	R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal	R2, R3

Motorspeed control design files

The KiCad project lives in the baleshwarece-jpg/PCB_PROJECTS repository on GitHub; these links point at the commit this page was built from.

Motorspeed control: common questions

How big is the Motorspeed control PCB?

The Motorspeed control measures 70 × 40 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Motorspeed control?

15 components, from 10 distinct parts. The full bill of materials is listed on this page.

Where can I download the Motorspeed control design files?

From the baleshwarece-jpg/PCB_PROJECTS repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Motorspeed control design in my own project?

The repository has no license, so all rights stay with baleshwarece-jpg. Use it as a reference, and ask the author before reusing the design.

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