PCB reverse engineering and digitalization

Personal responsibilities :

• Reverse schematic

• PCB design

Skils/Techniques/Processes :  Altium designer,

RS232 to ID003 signal converter

Personal responsibilities :

• Electrical design

• PCB design

• Prototyping and testing

Skils/Techniques/Processes :  Altium designer, Solid works, ID003, RS232

Battery powered BTLE IoT device with embedded pressure sensor. 

Personal responsibilities :

• Electrical design

• PCB design

• Prototyping and testing

Skils/Techniques/Processes :  Altium designer, I2C, BTLE, Silabs EFR32, ST LPS27HHW

Design and build an interface board allowing control of Acura car audio amplifier over RS485. 

Personal responsibilities :

• Electrical design

• PCB design

• Protocol implementation

• Prototyping and testing

Skils/Techniques/Processes :  Altium designer, RS485, ADC, Microchip Mega, Arduino 

Design a new version of the led enhanced hokey puck. To improve  the impact resistance and operation at low temperature modify the LED connection, implement a LiFePo4 battery and replacing the inertial / cap sensor control with a magnetic control.  The board is subject of high g-forces ranging between 500-1000 g. 

Personal responsibilities :

• Electrical design

• PCB design

• Firmware

• Prototyping and testing

Skils/Techniques/Processes :  Altium designer, LiFePo charger, wireless charger, magnetic field sensor. 

Design and build of an assisting arm.

Personal responsibilities :

• Mechanical design

• Electrical design

• Build

Skils/Techniques/Processes :  SolidWorks, CNC machining, Welding, Pneumatic, Linear bearing

Design and build power switch based on Analog Devices LTC4357  ideal diode controller .  

Personal responsibilities :

• Schematic design

• PCB design

Skils/Techniques/Processes :  Altium Designer, PSpice, Power switch 

Design and build a board that disconnect the battery when it's voltage drop under the safety margins.  3.4 - 30 V,  load up to 20 A continius and 80 A peak.  

Personal responsibilities :

• Schematic design

• PCB design

• Prototype production

• Test and verification

Skils/Techniques/Processes :  Altium Designer, PSpice, PCB assembly, Current sense, Power switch 

The scope of this project include fault analysis of a custom PCB and redesign to solve the problems found and adding new functionality, a current transformer interface wiht  ADC and RTC. 

Personal responsibilities :

• Debug and analysis

• Schematic redesign

• PCB redesign

• PCB assembly, test and verification

• Mechanical fit verification

Skils/Techniques/Processes : SolidWorks, Altium Designer, I2C,  SPI, logic analyzer, PCB assembly, Current sense, RTC 

Design and prototyping of enclosure and power supply for a device.

This is a highly integrated device incorporating multiple high density PCB. Part of the design is a power supply module providing 19, 12 and 5 V to the embedded modules.  

Personal responsibilities :

• Industrial design

• Mechanical design optimized for  SLS/SLA 3D printing process.

• Thermal analysis,  simulation and design of proper cooling system.

• Design of multiple output power supply  Input :19 V;  Outputs: 19V / 3 A, 12V /3A, 5V / 3 A

• Enclosure prototyping including 3D Print and finishing

• PCB prototyping testing and qualification

Skils/Techniques/Processes : Mechanical design, Electrical, PCB design, Thermal design /  Solid Works, Altium Designer / 3D printing, Finishing, Soldering, Power source analysis

Design of corrosion sensor and evaluating unit for data acquiring.

This is the first stage of a design project for a corrosion sensor and acquiring unit with WiFi and LTE connectivity.

Step down converter to 5.2 V

LDO to 4.1, 3.3, 1.8 V

LiPoly Battery charger

Dual channel 16 bit AD frontend

uBlox Sara modem

ESP32-WROVER module 

Personal responsibilities :

• Sensor mechanical design

• Sensor prototyping

• Schematic design

• PCB design

• PCB prototype assmebly

Skils/Techniques/Processes : Mechanical design,Electrical/PCB design, Solid Works, Altium Designer, ADC

Audio mixer.

Design activity cover enclosure mechanical design, pcb  mechanical design, schematic,  PCB  and firmware design.

Wide supply range 8- 36 V DC compatible with the vehicles power  system /over voltage  surges and noise / 

Step down converter to 5.5 V

Step up  converter to 48 V

LDO to 1.8V , 3.3V , 5V

AD ADAU DSP processor

Maxim codec

Personal responsibilities :

• mechanical design

• schematic and PCB design

• Firmware design

• Harness design

Skils/Techniques/Processes : Mechanical design,Electrical/PCB design, Solid Works, Altium Designer, Sigma Studio, C/C++, PIC16

Design of schematic, PCB and firmware.

RGB LED light design to be encapsulated in a hokey puck.

This board include a wireless charger, DC-DC step up converter, an inertial sensor and 3 capacitive touch buttons.  

Personal responsibilities :

• Schematic and PCB design

• Firmware design

• jig design

Skils/Techniques/Processes : Inertial sensors, Capacitive sensors, PCB design,  Altium Designer, Solid Works

RFID reader interface controller.

Design activity cover mechanical design to fit in to a standard DIN box, schematic and PCB design.

Wide supply range 8- 60 V DC

Step down converter to 5 V

SEPIC converter to 12 V

LDO to 3.3V

Insulated RS485

Serial ports, relays etc.

Personal responsibilities :

• mechanical design

• schematic and PCB design

• prototype production

• placing in production

Skils/Techniques/Processes : Mechanical design,Electrical/PCB design, Solid Works, Altium Designer

Design of custom specified power switch.

The design include schematic, PCB, firmware and prototyping.

The board include a push button, 3 bicolor LED, low power LDO for the uC, battery monitoring and 3 A MOSFET switch.

The switch operate in different modes. the modes are determined by the press duration. The bicolor LED provide up to 5 well readable status levels.

The microcontroller stay in sleep state reducing the drain current from the battery.  

Personal responsibilities :

• schematic and PCB design

• firmware development

• prototype production

Skils/Techniques/Processes : Mechanical design,Electrical/PCB design, Solid Works, Altium Designer, C/C++

The device detect direction, speed and size of object passing trough a IR beam sensors and based on the settings generate a sequence of focus/shot signals to a photo camera.

Device is build from 3 boards :

Battery powered transmitter power supply , a DC-DC step up convertor providing 13 V DC to the beam transmitters.

Receiver front end, it distribute the DC power from the control unit, and transmit the sensors signals over RS485. The board include a DC-DC step down converter to power the RS485 circuit.

Controller unit, including the processor, DC-DC step up converter to power the sensors and DC-DC step down converter for the uC and other circuitry.

The project include both electrical, firmware and mechanical design.

Because the design is not intendent for regular production a standard enclosures was used.

All enclosures and connectors are IP67 that allowing device to be operated outside in harsh environment.

A custom display bezel, dial knob, button knob and PCB spacers was designed and produced using 3d printing.

The enclosures and panels are all machined and painted.

Personal responsibilities :

• conceptual design

• mechanical design

• schematic and PCB design

• firmware development

• prototype production

Skils/Techniques/Processes : Mechanical design,Electrical/PCB design, Solid Works, Altium Designer, SMPS, C/C++, Plastic machining, 3D print, sensors

Personal responsibilities :

• design and production process management

• conceptual design

• industrial design guidelines

• indistrial design outsourcing

• full mechanical design

• full electrical design, including light controller, power supply unit, custom subwoofer, custom amplifier, cabinet ahrnesses

• developing of process and equipment for production

• working with subcontractors and supplyiers 

Skils/Techniques/Processes : Mechanical design,Electrical/PCB design, Solid Works, Altium Designer, Thermal analysis, Sheet metal, Vacuum forming, RIM, Injection molding, TIG, MIG welding, DSP, SMPS 

Personal responsibilities :

• conceptual design

• industrial design

• full mechanical design

• full electrical design,

• developing of process and equipment for production

• working with subcontractors and supplyiers 

Skils/Techniques/Processes : Mechanical design,Electrical/, Solid Works,  Sheet metal, TIG