2 layers173 × 73.6 mm
TI thermostat esp32
abzman/1979-TI-thermostat-replacement-PCB
replaces the PCB in an old thermostat with one that has an esp32 onboard and other upgrades
95 partsUnlicense
2 layers
Motor speed controller
dilshan/mini-drill-driver1Replacement motor driver for INGCO mini drills
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 15
- Pads
- 54
- Tracks, vias
- 133, 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 4 Apr 2019
- Updated
- 4 Apr 2019
Overview
Motor speed controller is an open-source printed circuit board by dilshan, from the dilshan/mini-drill-driver repository on GitHub, published under the MIT licence. It is a 2-layer board with 25 parts on 15 nets, routed with 133 tracks and 4 vias.
It is built around the BT134-600 and 1N4733A. Its parts include 5 capacitors, 4 resistors, 4 connectors, 3 diodes and 3 switches. It belongs with the robots and motor control boards and the PIC boards of this library.
Main components
2README
README.mdReplacement motor driver for INGCO mini drills
This is replacement motor driver for INGCO mini drills / die grinders. This project is mainly developed to replace motor speed controller of the INGCO MG1502.2 mini drill.
This speed controller is designed based on Microchip PIC12F629 8-bit CMOS microcontroller. This MCU is used for zero-crossing detection, determine TRIAC firing times and to handle buttons and switches.
As an original board, the controller supply comes from the mains through a simple RCD circuit.
The firmware of this controller is design to operate with 4MHz internal-oscillator of the MCU. The current version of this controller is designed to work with 50Hz AC power sources. For 60Hz, TIMER0 timing value needs to be changed in the firmware source code.
Compare with the original MG1502.2 controller board this controller is not equipped with LCD. We remove LCD from this design due to the unavailability of compatibaly LCD modules. Also, we design this controller using commonly available through-hole type components.
WARNING: This controller board is powered by AC mains voltage. Avoid touching the board when power is applied. If possible, use an isolation transformer for the testing.
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | MountingHole:MountingHole_2.5mm | H1, H2, H3 | |
| 2 | 0.1MFD | Capacitor_THT:C_Rect_L7.0mm_W3.5mm_P5.00mm | C3, C5 |
| 2 | 1mH | Inductor_THT:L_Radial_D7.0mm_P3.00mm | L1, L2 |
| 2 | AC-IN1 | TestPoint:TestPoint_Plated_Hole_D3.0mm | J1, J2 |
| 1 | 0.1MFD | Capacitor_THT:C_Rect_L11.0mm_W5.1mm_P10.00mm_MKT | C2 |
| 1 | 0.22R | Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P5.08mm_Vertical | R4 |
| 1 | 0.27MFD | Capacitor_THT:C_Rect_L18.0mm_W5.0mm_P15.00mm_FKS3_FKP3 | C1 |
| 1 | 100R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 1M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 1N4007 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D2 |
| 1 | 1N4733A | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D1 |
| 1 | 220MFD | Capacitor_THT:CP_Radial_D8.0mm_P5.00mm | C4 |
| 1 | 390R | Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P5.08mm_Vertical | R1 |
| 1 | BT134-600 | Package_TO_SOT_THT:TO-126-3_Vertical | D3 |
| 1 | DOWN | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-10xx | SW1 |
| 1 | MOTOR-1 | TestPoint:TestPoint_Plated_Hole_D3.0mm | J3 |
| 1 | MOTOR-2 | TestPoint:TestPoint_Plated_Hole_D3.0mm | J4 |
| 1 | PIC12F629-IP | Package_DIP:DIP-8_W7.62mm_LongPads | U1 |
| 1 | POWER | motor-speed-controller-comp:SWITCH-SPST | SW3 |
| 1 | UP | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-10xx | SW2 |
Questions
What parts does the Motor speed controller use?
25 parts, built around the BT134-600 and 1N4733A. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Motor speed controller KiCad files?
From the dilshan/mini-drill-driver repository on GitHub, at the commit this page was made from: the board is design/motor-speed-controller.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Motor speed controller design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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