ENG-01 · Energy & Power
Intelligent Wireless Battery Management System PCBA
A representative engineering architecture for pack-level safety supervision, battery-state estimation, fault diagnostics, data logging, and wireless cell-monitor communication.
Engineering references · architecture and process planning
PCBA Engineering Reference Library
Explore 52 PCBA engineering references covering architecture, manufacturing risks, validation planning and production controls. Download editable RFQ, DFM, BOM alternative, first article inspection, and test plan templates.
Entries include representative architectures and public-photo studies. Each reference explains its source and scope; completed customer build records require separate project evidence.
52 project references
126 technical image views
4 engineering sectors
INDUSTRIAL IOT · MSC EVT1
Machine Status Collector PCBA
24 V inputs, local counts and network records — with the circuit, firmware, installation accessories and engineering budget available for review.
Engineering review candidate · FABRICATION HOLD
Featured engineering story · ENG-02
6.6 kW Bidirectional OBC and V2G Power Conversion PCBA
A representative high-voltage architecture for grid-to-battery charging and controlled battery-to-grid energy return using bidirectional power-factor correction and isolated DC conversion.
Energy & Power
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Showing 12 of 52 references
ENG-01 · Energy & Power
Intelligent Wireless Battery Management System PCBA
A representative engineering architecture for pack-level safety supervision, battery-state estimation, fault diagnostics, data logging, and wireless cell-monitor communication.
ENG-02 · Energy & Power
6.6 kW Bidirectional OBC and V2G Power Conversion PCBA
A representative high-voltage architecture for grid-to-battery charging and controlled battery-to-grid energy return using bidirectional power-factor correction and isolated DC conversion.
ENG-03 · Energy & Power
High-Power USB-C Power Bank Control PCBA
A representative portable-energy architecture for a high-output battery pack with protection, balancing, fuel gauging, multi-port power allocation, display control, and bidirectional fast charging.
ENG-04 · Energy & Power
Modular Portable Power Station Bidirectional Inverter PCBA
A representative high-energy platform integrating battery supervision, solar charging, AC charging and inversion, protected DC outputs, and coordinated thermal management.
ENG-05 · Energy & Power
Battery Health Passport and SOH Data PCBA
A representative hardware foundation for lifecycle battery records, combining calibrated cell and temperature acquisition with SOC and SOH estimation, diagnostics, CAN communication, and local data logging.
ENG-06 · Energy & Power
16 A Appliance Health and Energy-Metering Smart Plug PCBA
A representative connected outlet architecture for switching high-current appliances, measuring energy use, identifying abnormal operating patterns, and reporting diagnostics to a local or cloud application.
ENG-07 · Energy & Power
Network Mini UPS and Multi-Rail Backup PCBA
A representative compact backup-power architecture for keeping routers, optical terminals, cameras, or other low-voltage network devices online during mains interruptions.
ENG-08 · Energy & Power
AI Home Energy Monitoring and Load Disaggregation PCBA
A representative edge-measurement platform for high-rate whole-home energy sampling, appliance signature extraction, local processing, and secure wireless reporting.
HOME-01 · Connected Home
Multi-Protocol Smart Home Gateway PCBA
An FCC-photo reference showing a compact gateway mainboard with TYBT2 and TYWE3S radio modules, separate printed antennas, and accessible programming pads.
HOME-02 · Connected Home
Robotic Lawn Mower Control and Power PCBA
An FCC-photo reference spanning the RLM1000 control board, user-interface board, wireless section, labeled safety and sensor connectors, and a large mainboard with repeated power channels.
HOME-03 · Connected Home
16-Zone Smart Irrigation Controller PCBA
An FCC-photo reference showing a large 16-zone controller with dense field-wiring terminals, repeated output stages, a backup-cell location, local controls, and extensive test pads.
HOME-04 · Connected Home
Connected Mains Switch and DIN-Rail Control PCBA
An FCC-photo reference combining a wall-switch power and control assembly with visible antenna placement and a separate connected control-board example featuring an RJ45-form interface.
HOME-05 · Connected Home
Connected Coffee Machine Power and UI PCBA Set
An FCC-photo reference showing an SMC01 main board with three electromagnetic relays and power components, plus a separate LCD, key, buzzer, and connected-control interface board.
HOME-06 · Connected Home
Touchless Smart Trash Can Motion Control PCBA
An FCC-photo reference showing a connector-rich HERO mainboard, labeled motor, keypad, battery and DC-input interfaces, a concentrated power stage, and a CC2541-based radio daughterboard.
HOME-07 · Connected Home
Smart Toilet Safety Control and Application PCBA Set
An FCC-photo reference showing a connector-rich low-voltage execution board and a separate Renesas-based application board with storage, board-to-board interfaces, and an ANT1 radio area.
HOME-08 · Connected Home
Dual-Zone Smart Mattress Thermal Control PCBA
An FCC-photo reference showing a 12 V control board with mirrored left and right power channels, labeled pump, fan, solenoid and reed-switch connectors, plus a separate SOM and antenna assembly.
HOME-09 · Connected Home
Low-Power Temperature and Humidity Sensor PCBA
An FCC-photo reference showing a compact sensor node with a TI CC2652-marked wireless device, 48 MHz crystal, programming pads, a board-edge key, RF matching, and a printed antenna.
HOME-10 · Connected Home
Connected Water Purifier Power and Control PCBA
An FCC-photo reference showing an integrated W60 main board with ACINPUT, L/N, 24V and heating-related markings, protected power sections, repeated output circuits, and a separate WBR1 wireless board.
HOME-11 · Connected Home
Connected Air Purifier Power and Control PCBA Set
An FCC-photo reference showing a discrete offline power board with transformer, high-voltage capacitor, feedback isolation and heatsinking, plus a separate MCU and radio control board.
HOME-12 · Connected Home
Smart Humidifier Display and Actuator PCBA Set
An FCC-photo reference showing an H7149 fan or airflow sub-board and a main display board with dual-digit indication, humidity and wireless icons, and four spring-touch electrodes.
HOME-13 · Connected Home
Multi-Channel Home Energy Monitor PCBA
An FCC-photo reference showing an EMV3-A board with repeated current-transformer input channels, voltage-sensing components, isolation slots, dense test access, and an ESP32-WROVER-IE module with external antenna.
WELL-01 · Wellness Electronics
Smart High-Torque Percussion Massager PCBA
A representative development architecture for a high-output percussion massager with controlled motor startup, speed or load supervision, battery management, local indication, and optional wireless control.
WELL-02 · Wellness Electronics
Compact Pocket Percussion Massager PCBA
A representative compact motor-control platform for a pocket percussion massager balancing startup behavior, usable output, charging, indication, thermal limits, and mechanical packaging.
WELL-03 · Wellness Electronics
EMS Heated Neck Massager Control PCBA
A representative wearable architecture combining locally limited electrical stimulation, contact-aware intensity control, regulated heating, battery power, and optional wireless interaction.
WELL-04 · Wellness Electronics
Air-Compression Heated Eye Massager PCBA
A representative multi-actuator platform for sequenced air compression, regulated warming, optional vibration or audio, rechargeable operation, and fail-safe pressure release.
WELL-05 · Wellness Electronics
Thermoelectric Hot-and-Cold Eye Massager PCBA
A representative thermoelectric platform for controlled heating and cooling with reversible high-current drive, dual-point temperature sensing, heat-side supervision, and condensation-aware operation.
WELL-06 · Wellness Electronics
Full-Coverage Head Compression Massager PCBA
A representative multi-channel pneumatic control architecture for zoned head compression with optional warming or vibration, local interface support, wireless coordination, and default pressure release.
WELL-07 · Wellness Electronics
Connected Scalp Massager Control PCBA
A representative wearable scalp-care platform for motorized massage and optional zoned light output, with wireless control, thermal supervision, contact interlocks, and rechargeable operation.
WELL-08 · Wellness Electronics
4D Smart Massage Chair Main Control PCBA
A representative system-control architecture for coordinating massage mechanisms, travel axes, recline actuators, air compression, heating, wired controls, and optional connectivity in a mains-powered chair.
WELL-09 · Wellness Electronics
Foot Roller and Kneading Massager Control Architecture
A representative foot-massager system architecture pairing a low-power wireless command board with a separate protected motor and heater controller in the appliance.
WELL-10 · Wellness Electronics
Foot-and-Leg Compression Massager Main Control PCBA
A representative mixed-actuator platform combining roller or vibration motors, air compression, warming, sensing, and wireless or panel control for foot-and-leg massage sequences.
WELL-11 · Wellness Electronics
Wireless Air-Compression Recovery Boots Control System
A representative cordless recovery-boot architecture for multi-chamber pressure sequencing, local display, battery operation, bilateral wireless coordination, and independent fail-safe release.
WELL-12 · Wellness Electronics
Hand Air-Compression Massager Control System
A representative hand-care architecture combining sequenced pneumatic compression, optional vibration and warming, an accessible LCD interface, and default pressure release.
WELL-13 · Wellness Electronics
Heated Vibration Knee Massager Control PCBA
A representative low-voltage wearable controller for regulated knee warming, vibration levels, timed sessions, battery charging, and compact numeric indication.
WELL-14 · Wellness Electronics
EMS Heated Waist Massager Control PCBA
A representative wearable waist platform combining controlled electrical stimulation, broad-area heating, contact sensing, dual-cell energy management, local controls, and BLE sessions.
WELL-15 · Wellness Electronics
Back Kneading Massager Main Control PCBA
A representative low-voltage kneading platform for a geared motor, controlled reversal, current-based jam detection, local indication, optional warming, rechargeable power, and wireless interaction.
WELL-16 · Wellness Electronics
Smart Cupping and Scraping Massager PCBA
A representative compact negative-pressure platform for controlled suction, dynamic release, optional warming, battery charging, local indication, and wireless session control.
WELL-17 · Wellness Electronics
Wireless TENS and EMS Pulse Massager PCBA
A representative miniature stimulation-pod architecture for rechargeable wireless sessions, defined pulse generation, attachment detection, local controls, independent energy limits, and safe output discharge.
WELL-18 · Wellness Electronics
Facial Microcurrent and Vibration Massager PCBA
A representative facial-device platform combining controlled low-energy electrical output, electrode-contact supervision, mechanical vibration, rechargeable power, local controls, and optional wireless guidance.
WELL-19 · Wellness Electronics
Connected Vibrating Foam Roller Control PCBA
A representative high-current vibration platform for soft-start motor control, rechargeable operation, level indication, wireless training sessions, and protection inside a high-vibration cylindrical assembly.
WELL-20 · Wellness Electronics
Constant-Temperature Foot Spa Control PCBA Set
A representative mains-powered wet-environment architecture for controlled water heating, pump or massage loads, temperature and level supervision, isolated user controls, and independent protection against leakage, dry heating, and overtemperature.
MED-01 · Health Electronics
Compact oral-care controller
Rechargeable motor-drive, charging, user-indication and enclosure-constrained interconnect architecture.
MED-02 · Health Electronics
Sleep-monitoring sensor electronics
Low-noise sensing, embedded processing, communications and regulated power for extended-duration monitoring.
MED-03 · Health Electronics
Therapy training interface
Compact accessory interface combining low-level sensing or controlled output, user feedback and battery operation.
MED-04 · Health Electronics
Multi-channel LED therapy driver
Repeated regulated output channels, thermal paths, connectors and control electronics.
MED-05 · Health Electronics
Flexible LED therapy mask controller
Wearable flexible illumination interconnects, battery power, compact control and mechanical strain relief.
MED-06 · Health Electronics
Wearable light-therapy controller
Rechargeable wearable controller with repeated output channels and enclosure-constrained wiring.
MED-07 · Health Electronics
Fall-detection and alert wearable
Portable motion sensing, low-power control, radio communication, charging and alert electronics.
MED-08 · Health Electronics
Continuous monitoring patch electronics
Miniature sensing, fine-pitch assembly, compact power and antenna-constrained interfaces.
MED-09 · Health Electronics
Wearable stimulation controller
Controlled-output, battery, programmable electronics and electrode or accessory interface architecture.
MED-10 · Health Electronics
Wireless training accessory
Wearable sensor or actuator interfaces, battery power, radio communication and compact mechanics.
MED-11 · Health Electronics
Infant-monitor transmitter electronics
Compact sensing or audio interfaces, regulated power, radio operation and enclosure controls.
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Engineering decision path
Move from sourcing risk to controlled production release
Use these guides as one connected workflow: identify component risk, qualify alternates, approve the first article, control programming and serial identity, retain traceability records, and govern later changes.