2 layers65 × 100 mm
Second Board
MakerLabTunisia/CARVER_X5
CARVER X5 is an OpenSourceHarware 5 Axis CNC Carving Machine - by MakerLabTunisia
47 parts135CC-BY-SA-4.0
2 layers149.9 × 87.6 mm
Coil speedifier
restelli/Coil_speedifier- Size
- 149.9 × 87.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 33
- Nets
- 22
- Pads
- 78
- Tracks, vias
- 144, 5
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 11 Apr 2024
- Updated
- 24 Apr 2024
Overview
Coil speedifier is an open-source printed circuit board by restelli, from the restelli/Coil_speedifier repository on GitHub. It is a 2-layer board of 149.9 × 87.6 mm with 33 parts on 22 nets, routed with 144 tracks and 5 vias.
It is built around the PDS1-S15-S15-M and LTV-817. Its parts include 11 resistors, 9 capacitors, 5 inductors, 3 transistors and 3 connectors.
Main components
2PDS1-S15-S15-M
SMD-5P,12.7x8.3mm1 13.5V~16.5V 15V 67mA 81% SMD-5P,12.7x8.3mm DC-DC Power Modules ROHSCUIDC-DC Power Modules
LTV-817
DIP-4-55℃~+110℃ 1 1.2V 100mV@20mA,1mA 200mW 35V 3us 4us 50% 50mA 50mA 5kV 600% 6V DC Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSLite-OnTransistor, Photovoltaic Output Optoisolators
README
README.mdCoil Speedifyer
This circuit can be used to interrupt current into a coil and, by allowing the emf to peak to a tunable value, speed up the turn off. The main limitations are:
- Reduced duty cycle: that can be changed by using a different driver circuit for the MOSFET. It turns out it was not necessary for our application
- Speed limited by the voltage rating of the MOS. This can be changed by selecting different MOSFET (Including SiC)
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | R_US | Resistors_SMD:R_0805 | R1, R4, R5, R6, R8, R9 |
| 5 | C | Capacitors_SMD:C_0805 | C1, C2, C3, C5, C6 |
| 5 | INDUCTOR | Inductors_SMD:L_0805 | L1, L2, L3, L4, L5 |
| 3 | C | Capacitors_SMD:C_1210 | C4, C8, C9 |
| 3 | R_US | Resistors_SMD:R_1206 | R2, R3, R7 |
| 2 | Q_NMOS_GDS | Coil_speedifier:STE250NS10 | Q2, Q3 |
| 1 | C | Capacitors_THT:C_Disc_D7.5mm_W5.0mm_P10.00mm | C7 |
| 1 | Conn_Coaxial | Connectors_TE-Connectivity:BNC_Socket_TYCO-AMP | J2 |
| 1 | LTV-817 | Housings_DIP:DIP-4_W10.16mm_LongPads | U1 |
| 1 | PDS1-S15-S15-M | Converters_DCDC_ACDC:DCDC-Conv_muRata_NXE2SxxxxMC | U2 |
| 1 | Q_NPN_Darlington_BCE | TO_SOT_Packages_THT:TO-220-3_Vertical | Q1 |
| 1 | R_US | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | R11 |
| 1 | R_US | Resistors_THT:R_Axial_DIN0617_L17.0mm_D6.0mm_P30.48mm_Horizontal | R10 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_Altech_AK300-2_P5.00mm | J3 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_4UCON:TerminalBlock_4UCON_19963_02x3.5mm_Straight | J1 |
Questions
How big is the Coil speedifier PCB?
It measures 149.9 × 87.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Coil speedifier use?
33 parts, built around the PDS1-S15-S15-M and LTV-817. 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 Coil speedifier KiCad files?
From the restelli/Coil_speedifier repository on GitHub, at the commit this page was made from: the board is Coil_speedifier.kicad_pcb and its schematic Coil_speedifier.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Coil speedifier design in my own project?
Its repository states no licence, so its author keeps all rights: ask restelli before reusing the design.
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