4 layers240 × 100 mm
4 layers240 × 80 mm
Edm power board
strombom/EDM7- Size
- 240 × 80 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 158
- Nets
- 104
- Pads
- 454
- Tracks, vias
- 977, 184
- Pours
- 25
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 29 Jan 2018
- Updated
- 4 Nov 2020
Overview
Edm power board is an open-source printed circuit board by strombom, from the strombom/EDM repository on GitHub. It is a 4-layer board of 240 × 80 mm with 158 parts on 104 nets, routed with 977 tracks and 184 vias.
It is built around the FAN7371M, LM25085MM and LM358, with the LM5022MM, LM311 and L7815 among its other parts. Its parts include 64 resistors, 46 capacitors, 12 ICs, 12 diodes and 7 transistors.
Main components
12
FAN7371M
SOIC-8-40℃~+125℃ 1 10V~20V 15ns 25ns 25uA 4A 4A High Side IGBT、MOSFET Interleaved conduction protection SOIC-8 Gate Drivers ROHSonsemiGate Drivers
LM25085MM
VSSOP-8-0.65mm-40℃~+125℃@(TJ) 1 1MHz 4.5V~42V Adjustable Buck Buck External No VSSOP-8-0.65mm DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
LM358
SOP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 24mA 3V~36V 500uA 50nA 5mV 80dB Built-in compensation SOP-8 Operational Amplifier ROHSMSKSEMIOperational Amplifier
LM5022MM
MSOP-10-40℃~+125℃@(TJ) 1 6V~60V 990kHz Boost、Buck-Boost Boost、SEPIC No MSOP-10 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersLM311
SOP-80℃~+70℃ 1 1.7nA 2.4mA 200ns 2mV 36V 45nA 5V~30V TTL、CMOS ±15V SOP-8 Comparators ROHSGcoreComparators
L7815
TO-220ST0℃~+125℃@(Tj) 1 1.2A 15V 2V@(1A) 30V 500uA 70dB@(120Hz) 90uV Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SI8641BB-B-IS
SOIC-16-300mil-40℃~+125℃ 150Mbps 2.375V~5.5V 2.375V~5.5V 2500 50kV/us SOIC-16-300mil Digital Isolators ROHSSilicon LabsDigital Isolators
SI8642BB-B-IS
SOIC-16-40℃~+125℃ 150Mbps 2 2 2.375V~5.5V 2.375V~5.5V 2500 50kV/us 8ns Fail-safe output、Power-on reset Low Level SOIC-16 Digital Isolators ROHSSkyworks SolutionsDigital Isolators
BSS214NW-TP
SOT-323MOSFETsTECH PUBLIC
RS1M-T R3G
SMA-55℃~+150℃ 1 Independent 1.3V@1A 1A 1kV 30A 500ns 5uA@1kV SMA Fast Recovery / High Efficiency Diodes ROHSTaiwan SemiconductorFast Recovery / High Efficiency DiodesVS-15EWL06FNTR-M3
D-PAK(TO-252AA)D-PAK(TO-252AA) Fast Recovery / High Efficiency Diodes ROHSVishay IntertechnologyFast Recovery / High Efficiency Diodes
1.5SMC400CA
DO-214AB-65℃~+150℃ 1.5kW@10/1000us 1uA 3.7A@10/1000us 342V 420V 482V Bidirectional IEC 61000-4-2、IEC 61000-4-4 TVS DO-214AB ESD and Surge Protection (TVS/ESD) ROHSLittelfuseESD And Surge Protection (TVS/ESD)
README
README.mdEDM
Control board
- Stepper motor output.
- Power board control output.
- Buttons for stepper motor up/down and EDM start/stop.
- LCD display 4x20 characters for status.
- Potentiometers for setting voltage, current (not implemented in this revision), on-time and off-time.
Power board
- Voltage source, low current for initiating spark. Selectable 250 V, 200 V, 150 V or 100 V. Status comparator checks if voltage is above 70 V.
- Current source, for providing current to the spark. Current limited to 10 A, adjustable with potentiometer. Spark output, has two power transistors to enable the control board to control the voltage and current outputs independently. Has two comparators (5 V and 30 V) to give feedback to the control board, monitoring if a spark has started (breakdown) and to check for short circuit.
Design files
Parts
158| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 100n | Capacitor_SMD:C_0805_2012Metric | C202, C204, C209, C303, C307, C308, C402, C602, C603, C605, C608, C610, C611, C612, C613, C615 |
| 9 | 27k | Resistor_SMD:R_0805_2012Metric | R201, R202, R203, R207, R301, R306, R610, R616, R617 |
| 8 | Mounting_Hole_PAD | MountingHole:MountingHole_5mm_Pad | MK501, MK502, MK503, MK504, MK507, MK508, MK509, MK510 |
| 7 | 1k | Resistor_SMD:R_0805_2012Metric | R214, R215, R216, R217, R218, R220, R221 |
| 7 | 21k | Resistor_SMD:R_0805_2012Metric | R304, R606, R612, R615, R618, R621, R622 |
| 6 | 187k | Resistor_SMD:R_0805_2012Metric | R613, R614, R619, R620, R623, R624 |
| 6 | 1u | Capacitor_SMD:C_0805_2012Metric | C302, C304, C305, C309, C403, C604 |
| 4 | 470n | Capacitor_SMD:C_1812_4532Metric | C313, C314, C315, C316 |
| 4 | 4R99 | Resistor_SMD:R_0805_2012Metric | R601, R604, R605, R609 |
| 4 | 4k7 | Resistor_SMD:R_0805_2012Metric | R204, R208, R603, R608 |
| 3 | 10u | Capacitor_SMD:CP_Elec_6.3x5.3 | C211, C606, C609 |
| 3 | 470n | Capacitor_SMD:C_0805_2012Metric | C207, C607, C614 |
| 3 | 4V7 | Diode_SMD:D_SOD-123 | D301, D604, D606 |
| 3 | 84k5 | Resistor_SMD:R_0805_2012Metric | R303, R307, R611 |
| 3 | BSS214NW | Package_TO_SOT_SMD:SOT-323_SC-70 | Q301, Q303, Q304 |
| 3 | Conn_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J502, JJ503, JJ504 |
| 3 | LM311 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U303, U605, U606 |
| 3 | RS1MTR | Diode_SMD:D_SMA | D601, D603, D607 |
| 2 | 10n | Capacitor_SMD:C_0805_2012Metric | C206, C306 |
| 2 | 1n | Capacitor_SMD:C_0805_2012Metric | C208, C312 |
| 2 | 220p | Resistor_SMD:R_0805_2012Metric | C201, C205 |
| 2 | 22u | Capacitor_SMD:CP_Elec_5x5.3 | C203, C301 |
| 2 | 26k1 | Resistor_SMD:R_0805_2012Metric | R308, R316 |
| 2 | 330n | Capacitor_SMD:C_0805_2012Metric | C401, C601 |
| 2 | 47R | Resistor_SMD:R_0805_2012Metric | R602, R607 |
| 2 | 93k1 | Resistor_SMD:R_1206_3216Metric | R310, R311 |
| 2 | FAN7371 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U603, U604 |
| 2 | S2JTR | Diode_SMD:D_SMB | D202, D302 |
| 2 | VS-15EWL06FNTR-M3 | Package_TO_SOT_SMD:TO-252-2 | D602, D605 |
| 1 | 1.5SMC400CA | Diode_SMD:D_SMC | D608 |
| 1 | 100R | Resistor_SMD:R_0805_2012Metric | R209 |
| 1 | 100k | Potentiometer_SMD:Potentiometer_Bourns_3314G_Horizontal | RV601 |
| 1 | 102R | Resistor_SMD:R_0805_2012Metric | R314 |
| 1 | 10R | Resistor_SMD:R_0805_2012Metric | R206 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R312 |
| 1 | 10k5 | Resistor_SMD:R_0805_2012Metric | R309 |
| 1 | 10m | Resistor_SMD:R_2512_6332Metric | R211 |
| 1 | 120n | Capacitor_SMD:C_0805_2012Metric | C310 |
| 1 | 150m | Resistor_SMD:R_2512_6332Metric | R315 |
| 1 | 15k | Resistor_SMD:R_0805_2012Metric | R213 |
| 1 | 1800p | Capacitor_SMD:C_2220_5650Metric | C501 |
| 1 | 18k | Resistor_SMD:R_0805_2012Metric | R318 |
| 1 | 1M | Resistor_SMD:R_1206_3216Metric | R501 |
| 1 | 1m | Inductor_SMD:L_Pulse_PA4320 | L301 |
| 1 | 20m | Resistor_SMD:R_Stackpole_CSSH2728_4-100m | R219 |
| 1 | 243k | Resistor_SMD:R_0805_2012Metric | R205 |
| 1 | 2M1 | Resistor_SMD:R_0805_2012Metric | R317 |
| 1 | 2k2 | Resistor_SMD:R_0805_2012Metric | R302 |
| 1 | 3k | Resistor_SMD:R_0805_2012Metric | R305 |
| 1 | 3n3 | Capacitor_SMD:C_0805_2012Metric | C210 |
| 1 | 47k | Resistor_SMD:R_0805_2012Metric | R212 |
| 1 | 500k | Potentiometer_SMD:Potentiometer_Bourns_3314G_Horizontal | RV602 |
| 1 | 50k | Potentiometer_SMD:Potentiometer_Bourns_3314G_Horizontal | RV201 |
| 1 | 52k3 | Resistor_SMD:R_0805_2012Metric | R313 |
| 1 | 560p | Capacitor_SMD:C_0805_2012Metric | C311 |
| 1 | 6k34 | Resistor_SMD:R_0805_2012Metric | R210 |
| 1 | 6u8 | Inductor_SMD:L_Wuerth_HCI-2212 | L201 |
| 1 | BSC13DN30NSFD | Package_TO_SOT_SMD:TDSON-8-1 | Q302 |
| 1 | Conn_02x08_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | J501 |
| 1 | IPD50R380CE | Package_TO_SOT_SMD:TO-252-2 | Q602 |
| 1 | IPD50R3K0CE | Package_TO_SOT_SMD:TO-252-2 | Q601 |
| 1 | L7815 | Package_TO_SOT_SMD:TO-263-2 | U602 |
| 1 | L78L05_SO8 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U401 |
| 1 | LM25085MM | Package_SO:MSOP-8_3x3mm_P0.65mm | U202 |
| 1 | LM358 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U201 |
| 1 | LM5022MM | Package_SO:MSOP-10_3x3mm_P0.5mm | U302 |
| 1 | SUD19P06-60 | Package_TO_SOT_SMD:TO-252-2 | Q201 |
| 1 | Si8641BB-B-IS | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U301 |
| 1 | Si8642BB-B-IS | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U601 |
| 1 | TL431AIDBZR | Package_TO_SOT_SMD:SOT-23 | D201 |
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Questions
How big is the Edm power board PCB?
It measures 240 × 80 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Edm power board use?
158 parts, built around the FAN7371M, LM25085MM, LM358 and LM5022MM. 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 Edm power board KiCad files?
From the strombom/EDM repository on GitHub, at the commit this page was made from: the board is hardware/edm_power_board/cad/edm_power_board.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Edm power board design in my own project?
Its repository states no licence, so its author keeps all rights: ask strombom before reusing the design.