

Diode Tester
Modular Electronics Workstation
- Size
- 160 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 88
- Nets
- 101
- Pads
- 323
- Tracks, vias
- 366, 305
- Pours
- 13
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 2 Mar 2023
- Updated
- 3 Jun 2024
Overview
Diode Tester is an open-source printed circuit board by Synthron, from the Synthron/ModLab repository on GitHub. It is a 2-layer board of 160 × 100 mm with 88 parts on 101 nets, routed with 366 tracks and 305 vias.
It is built around the SN65HVD232D, LM2904 and BSS138, with the BCX53, LL4148 and P6SMB16 among its other parts. Its parts include 24 resistors, 23 capacitors, 13 diodes, 10 transistors and 4 ICs. It belongs with the STM32 boards of this library.
Main components
8SN65HVD232D
SOIC-8-40℃~+85℃ 17mA 1Mbps 3.3V CAN Transceiver SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN TransceiversLM2904
SOP-8-15V~-1.5V、1.5V~15V 0℃~+70℃ 1MHz 2 2mV 3V~30V 3nA 40mA 45nA 500uA 85dB SOP-8 Operational Amplifier ROHSGOODWORKOperational AmplifierBSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETsBCX53
SOT-89-55℃~+150℃ 1 PNP 100nA 1A 500mV 500mW 50MHz 5V 63 80V PNP SOT-89 Bipolar (BJT) ROHSTWGMCBipolar (BJT)LL4148
LL-341 Independent 1V@10mA 200mA 4A 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHSMDDSwitching DiodesP6SMB16
DO-214AA(SMB)ESD And Surge Protection (TVS/ESD)Taiwan SemiconductorSMAJ5.0AJ
SMAESD And Surge Protection (TVS/ESD)WeEn SemiconductorsSRF3225TAC-101Y
--55℃~+150℃ 1.5Ω 100uH@100kHz 10MΩ 150mA 2 5.1kΩ@10MHz 80V - Common Mode Filters ROHSBournsCommon Mode Filters
README
README.mdModLab
A modular station for your electronic workbench
The ModLab is designed to be housed in a 19" Rack with 3U.
It is the improved version of the (failed) Arduino Workstation I built a long time ago.
But now It will be bigger, better and way too complicated.
Work in Progress
To-Dos
Repo
- Rewrite documentation in english
- Write better introduction
- explain what exactly the ModLab is
- update changes for TFT
- Explain TFT Protocol
- Attach Schematics
- Cleanup Repo
Hardware
- Redesign modules with STM32
- Master Bus Controller with F767
- V1
- Review
- Ordered
- Assembled
- V2
- Change LCD connector
- omit external SRAM
- include header for Reset
- V1
- Diode/LED-Tester
- V1
- V2
- Variable Power Supply
- V1
- V2
- Fix Relais Footprint
- Feedback Dividers for correct level
- Review
- Ordered
- Assembled
- Symmetric Power Supply
- V1
- V2
- fix negative channel
- fix CC LEDs
- Review
- Ordered
- Assembled
- Waveform generator
- DSO-138 clone?
- Electronic Load
- Logic Tester
- Continuity tester
- Speaker Module
- Termination boards and Bus Extenders
- Master Bus Controller with F767
Software
- General
- Define CAN Protocol
- Define Command Structure
- Define Data Structure
- Define CAN Protocol
- Master Bus Controller
- STM32 code
- USB for Debug
- LCD
- Get Nextion Display working
- UI
- µC Interface
- Get Nextion Display working
- Busses
- CAN
- SPI - No Usecase so far
- I2C
- DAC - No Usecase so far
- RS485 - No Usecase so far
- ESP32 code
- comm with STM
- OTA
- basic web interface
- STM32 code
- Diode Tester code
- CAN
- Testing Sequence
- ADC
- SymPSU
- PWM Signals
- ADC
- CAN-Interface
- Power SMPS
- PWM Signals
- ADC
- CAN-Interface
- Waveform Generator
- PWM Signals
- AD9833
- CAN-Interface
- Power Monitor
- Voltage Measurement
- Current Measurement
- I2C communication
ModLab Lib Tracker:
- SymPSU
- Diode-Tester
- SMPS
- Load
- F-Gen
Parts
88| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100n | Capacitor_SMD:C_0805_2012Metric | C1, C2, C11, C12, C14, C15, C16, C17, C19, C20, C21 |
| 8 | 10k | Resistor_SMD:R_0805_2012Metric | R3, R5, R10, R17, R22, R26, R105, R106 |
| 6 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q2, Q5, Q8, Q11, Q101, Q102 |
| 4 | 100k | Resistor_SMD:R_0805_2012Metric | R6, R12, R19, R25 |
| 4 | 100µ | Capacitor_THT:CP_Radial_D8.0mm_P5.00mm | C6, C7, C8, C9 |
| 4 | 1µ | Capacitor_SMD:C_0805_2012Metric | C3, C10, C13, C102 |
| 4 | 4k7 | Resistor_SMD:R_0805_2012Metric | R101, R102, R103, R104 |
| 4 | 5V6 | Diode_SMD:D_MiniMELF | D1, D2, D3, D8 |
| 4 | BCX53 | Package_TO_SOT_SMD:SOT-89-3 | Q3, Q6, Q9, Q12 |
| 4 | CO 3570.1331.051 | Relay_THT:Relay_SPST_StandexMeder_SIL_Form1A | K101, K102, K103, K104 |
| 4 | LL4148 | Diode_SMD:D_MiniMELF | D101, D102, D103, D104 |
| 3 | 499 | Resistor_SMD:R_0805_2012Metric | R18, R23, R24 |
| 2 | 20p | Capacitor_SMD:C_0805_2012Metric | C4, C5 |
| 2 | P6SMB16 | Diode_SMD:D_SMA | D6, D7 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric | R13 |
| 1 | 12MHz | Crystal:Crystal_SMD_5032-4Pin_5.0x3.2mm | Y1 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric | R14 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R11 |
| 1 | 1n | Capacitor_SMD:C_0805_2012Metric | C101 |
| 1 | 2k2 | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 4k99 | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 4µ7 | Capacitor_SMD:C_0805_2012Metric | C18 |
| 1 | AP1117-33 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | Address | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J101 |
| 1 | CDSOT23-T24-Q | Package_TO_SOT_SMD:SOT-23 | D9 |
| 1 | DIN41612_02x32_AC | eigene:VG64_Euro | J1 |
| 1 | Diode | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | LM2904 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | LOGO | eigene:logo | G*** |
| 1 | LOGO | TheBrutzlers_Lib:thebrutzler_approved_small02 | G*** |
| 1 | P6SMB26 | Diode_SMD:D_SMA | D5 |
| 1 | SMAJ5,0A | Diode_SMD:D_SMA | D4 |
| 1 | SMB-001 | eigene:SMB-001 | FB1 |
| 1 | SN65HVD232 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | SRF3225TAC-101Y | eigene:SRF3225TAC | L1 |
| 1 | STM32F103C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | SWD | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J3 |
The 87 most common of 88 parts.
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Below is the output scope from the sense circuit, where the pad resistance values are 5Ω, 200Ω, 1kΩ, and High Impedance.
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Layout da PCB do sistema de aquisição utilizado na projeto
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Questions
How big is the Diode Tester PCB?
It measures 160 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Diode Tester use?
88 parts, built around the SN65HVD232D, LM2904, BSS138 and BCX53. 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 Diode Tester KiCad files?
From the Synthron/ModLab repository on GitHub, at the commit this page was made from: the board is Hardware/V3/Diode Tester/Diode_Tester_V2/Diode_Tester.kicad_pcb and its schematic Hardware/V3/Bustermination/Bustermination.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Diode Tester design in my own project?
Its repository states no licence, so its author keeps all rights: ask Synthron before reusing the design.