Circuit design, PCB and prototyping, electromagnetic compatibility

Hardware design

We develop schematics, printed circuit boards and prototypes for

- Audio electronics
- Power electronics
- Embedded systems
- Consumer electronics
- Measuring tools
- Control devices
- Automation
- Industrial electronics
- Your assignment

Development of hardware includes

Selection of components and technologies
Design of a schematic circuit diagram
PCB design
Generate component list
Production of prototypes and small series
Firmware according to customer request
Testing - manual and/or automated


- Defining requirements for the product and subsystems

- Selection of base elements and materials
- Study of technologies and methods
- Simulations
- Pre-definition of modules and the connections between them.

- Create libraries
- Connecting components and signals
- Checking signals for integrity
- Scheme simulations
- Checking the scheme

- Creation of footprint libraries
- Manual placement and tracing
- Design check
- Generate component list
- Checking of mechanical requirements

- Generate gerber files
- Ordering and delivery of components
- Organization of production and installation

- Bringing the board to life
- Testing
- Documentation
- Packing and Shipping

Design of electrical circuit diagram

Designing a circuit diagram is (not always) the first stage in any electronic product. Using the latest schematic and simulation tools, we convert your concept or idea into a schematic circuit diagram.

At this stage of the design process, we consider component costs and availability as a high priority. Where possible, all or parts of the circuit will be simulated to evaluate and test performance before hardware is produced. A bill of materials (BOM) can then be generated, allowing you to start looking for quotes from your chosen manufacturer.

Our experience and know-how ensures that your product idea comes to life quickly.

Areas of competence

Analog circuit engineering
Digital circuit engineering
Power circuit engineering

Analog circuit engineering

- Analog sensors
- Analog sensors with digital output
- Analog-to-digital conversion (ADC)
- Digital-to-analog conversion (DAC)
- High speed ADC and DAC
- Low-frequency amplifiers class AB, D
- Industrial devices

Digital circuit engineering

- Microcontrollers PIC, ST, Silabs
- Ethernet, USB, RS232, RS485, SPI, I2C, 1-wire, GPRS, GSM, WiFi, Bluetooth
- GPS positioning and tracking
- Digital sensors
- Step control of electric motors
- LED drivers, controls and effects
- Class D low frequency amplifiers

Power circuit engineering

- Key and analog power supplies
- Digital control
- Inverters

PCB Design

Our 18 years of PCB design expertise allows us to quickly provide customers with complete blueprints and Gerber packages if you need a PCB design based on your schematics, or have an existing design that needs to be modified, or have need for a new PCB design, from conceptual schematics and BOM through creating complete PCB documentation to prototype production.

What we do

- Check of finished design
- Design of multilayer printed circuit boards - up to 16 layers
- PCB design with volume and surface mount components (PTH, SMT)
- High-speed signal, high-density, digital, analog, power electronics and hybrid electronics designs
- Designs with impedance controlled signals
- Designs meet EMC requirements
- Entirely manual PCB tracing
- Flexible and rigid printed circuit boards with standard or custom shape
- 3D model generation
- Generation of production files and documentation

Rapid prototyping

To effectively manage resources and minimize costs when creating a new product, modifying an existing one, or testing an idea, the right step is to test with a prototype. Depending on the stage of the project, testing can be with a prototype circuit board, a functional printed circuit board, and a finished printed circuit board.


We create a conceptual mock-up or prototype that provides a basis for exploring the idea of ​​a product or upgrade. For the hardware, we use ready-made components, modules and development tools. For firmware and/or software, we use free, open source software and services. The aim is to explore the possibilities of the idea, the methods and the technical challenges before its implementation.


We create a working prototype one step before the final version. The hardware is designed according to the customer's needs. We develop and test basic firmware functions We create a functional prototype that works sustainably and can be used for demonstrations or further development of the idea.

EMC (electromagnetic compatibility)

Electromagnetic compatibility (EMC) is constantly increasing in importance in all areas of electronics. Regulatory norms are becoming increasingly strict. This increases the time and effort in the design process of an electronic device to be able to achieve a design that meets the relevant standards. It is very important that the design is tailored to the specific requirements from the very beginning in order to avoid unforeseen costs at a later stage.

A proper understanding of EMC can increase the quality of the products offered and at the same time significantly reduce the cost of production. In most cases, the understanding of the problem comes down to good protection, through additional filters, shielding, multilayer PCBs, etc., but this only masks its effects. In some of the cases, the protection will help, but from a global point of view, the effect of this protection is to increase the cost of production and the price of the device, and the problem is not completely eliminated, and it is a prerequisite for future unforeseen costs. The correct approach is not to fight the consequences, but to eliminate the cause of them.


Often in our practice we come across the understanding that the way the printed circuit board is designed and wired cannot influence the problem and it is solved with a "big" choke at the input of the device. This is wrong and in all designs leads to an increase in the cost of the product. In most cases, the large choke is replaced by a "thin" printed circuit in the right place, allowing the currents to close a minimal loop on their way from the source to the drain and back.


You get our support from the very beginning of the project in the design of the schematic diagram and the printed circuit board. You minimize the number of necessary design revisions until reaching the correct design covering electromagnetic compatibility norms. If you use our hardware design services, you get the consultation along with the service and it goes hand in hand with the project until its completion.


In the figure you can see the PCB wiring and the measurement result. Unfortunately, the problem was solved at additional manufacturing cost by adding a choke to the device's power input and adding two more layers to the PCB.


In the figure you can see the wiring of the PCB as with only a very small change - adding a thin PCB wire in the right place solved the problem with zero production costs!

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