Electronic System Design

             Diversity in project experience

             Professional schematic capture

Electronic circuit simulations in PSPICE  

             Accurate estimate of your system performance

Professional Printed Circuit Board ( PCB) layout

             Multi-layered , any size, any shape

             Quick, low cost prototyping   

             Manufacturing options

Design optimization    

Real time software (firmware) development

             Embedded systems

             Support of many micro controller families

Digital filter architecture, design and VHDL implementations

             Filter characteristics simulation in MATLAB

             Hardware implementation in VHDL 

             Core delivery and documentation

             Variety of implementation strategies  

Digital Signal Processing (DSP)   

Our engineering team is capable of designing any electronic piece of equipment. From tiny sensor boards to high density DSP systems our knowledge and hard work expands your possibilities to a point where even the impossible becomes a reality.

List of design projects at a random order :

Power amplifier electronics. Data radio UARTS. Data radio electronics. Home automation electronics. Special features electronic telephone. Electronics to monitor disabled persons. Power electronics. Electronics to monitor children. Voice dialer electronics. Personal assistance electronics. Data acquisition electronics. Measurement electronics. Low temperature drift electronics. Embedded microprocessors. Microchip microprocessors. Atmel microprocessors. Philips microprocessors. Intel microprocessors. Zilog microprocessors. Low power transmitter. FSK, OOK, ASK, AM, FM transmitters. Diversity receiver electronics. Special power supplies. Power monitoring electronics. Frequency relay. PWM electronics. Communications electronics. Industrial electronics. Automotive electronics. Consumer electronics. Personal electronics engineering solutions. Custom made electronics. Portable information appliances. Analog signals. Information appliances. Electronics controlled appliances. Computer controlled electronics. Remote control electronics. Infrared control electronics. Radio control electronics. Internet capable appliances. Digital signals. Mixed signals. Electronics for multiplexing signals. Differential buses. Radio electronics. Low power electronics. Telecommunications electronics. Ringing SLICs. Data interface electronics. Data conversion electronics. I2C interfaces. Special operational amplifier applications. Correlation electronics. Multi-Tone electronics. Battery operated electronics. Analog to digital converters. Digital to analog converters. Integrating analog to digital converters. Serial interfaces. Parallel interfaces. Complex filtering electronics. Complex timing electronics. Wide range timing electronics. Ethernet controllers. Experimental electronics. PLL controlled systems. Frequency synthesizers. Auto ranging electronic instruments. Voice output electronics. Waveform generators. Logic analyzers. Advanced electronic circuits. Phase diversity generators. Line interface circuits. RS-232 interfaced electronics. Low noise electronics. Low RF radiation electronics. Acceleration measurement electronics. Acceleration protection electronics. Controlled gain amplifiers. Temperature stabilized electronics. Distributed control electronics. Digital noise reduction techniques. Analog audio bandwidth interfacing electronics. Instrumentation electronics. Nonvolatile memory. Error correcting data transmission. Wireless tachometer electronics. DC/DC converters. Chopping amplifiers. Signal conditioning electronics. True RMS measuring electronics. Signal transmission over high voltage barrier. Active filters. Frequency to voltage converters. Voltage to frequency converters. Motion control electronics. Sample and hold electronics. Feedback control electronics.

The schematic diagram is the engineering I.D. of any electronic circuit. Its quality and readability plays an essential role in electronic product development.
A good schematic can save many hours in troubleshooting and maintenance of any system. We realize that importance and specialize in creating professional schematic diagrams. Our schematics are state of the art piece of documentation, which makes even complex designs look simple.

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In our designs we optionally perform computer aided simulations of system's critical circuits.
The purpose of that is to ensure the correct circuit performance and to study its susceptibility to internal or external factors. Successful simulation often pays off by savings in time and money. As a separate service PSPICE simulations are required by many of our clients as a means of feasibility proof. We can use existing PSPICE libraries or build new models for your custom made components then put it all together into a virtual model of your system. 
Thus, you will be provided with an accurate estimate of your system performance long before your investment in any hardware.

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A critical component of any electronic system is the Printed Circuit Board (PCB). 
Its quality of design and manufacturing often makes the difference between success and failure of the product. This holds especially true for modern RF circuits, where parasitic capacitance and inappropriate board topology could ruin the entire engineering effort, regardless of the components quality. 
The type of PCB usually varies from application to application, which makes our design skills very flexible and versatile. We have no constrains of layers, shapes or sizes. The only limit is the complexity of the system itself.
In our development process the PCB design is usually done in two phases. In the first phase we build a prototype board with features that facilitates engineering work. In the second phase we strip off all extra features and build a board that facilitates manufacturing in a cost effective way. Quick circuit prototyping is important to prove conceptual feasibility and we offer that service at very reasonable prices. In addition we offer highly competitive manufacturing options for you PCB production.

Our electronics development services deliver a system, build on readily available parts that meet or exceed your specifications. For reason of availability and time, component selection is not usually optimized for minimal cost, unless the client selects design optimization options. That in turn will slightly increase the development time, however the final result will be a product that fits your budget. For more information please visit our Product Designs Optimization Services.

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Real time software has immense popularity in electronics today. Therefore it is nearly impossible to find any gadget  without some type of embedded control. Micro controllers are affordable, versatile and powered by firmware that adds flexibility to system designs, which reduces cost. For that reason adding a micro controller to a system often becomes cheaper than implementing the same logic with discrete components. In our projects , engineering and firmware development go side by side. There is a variety of micro controllers on the market today and it is getting harder to find a good balance between functionality and cost. While we normally look for the optimal part that best fits your project, we have established certain preferences. Using preferred micro controllers significantly shortens development time. The following is a list of our preferences: Microchip, AMD, Atmel, Zilog, TI, Motorola, OKI, Epson

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An integral part of modern communication systems is the digital filter. Its design and architecture is a key element in signal processing and as the complexity of signals increases so are the requirements for digital filtering. A digital filter could be implemented in hardware (FPGA) or in firmware (DSP). Our preferences for hardware platforms are FPGAs from Altera and Xilinx. We feel comfortable using any platform of your choice as well. Normally the design process consists of three phases:

Filter characteristics simulation in MATLAB
We select implementation strategy based on your initial specifications, then
we create a mathematical model of the filter and simulate its function in MATLAB.
When simulation results are satisfactory we implement the filter core in VHDL

Implementation in VHDL for a selected platform (FPGA)
In this phase the filter circuit is well defined and implementation is strait foreword.
The filter core is created in VHDL code, which is compiled and loaded in the
selected type of FPGA

Core delivery
As a final stage we deliver a single computer file, which you can use to program
the filter circuit into your  hardware platform. We also provide you with a package
of all project files, used in compilation of the core. Hard copy of the digital circuit
and simulation results are part of that package also.

Filter Implementation strategies  : 
   
Finite Impulse-Response Filters (FIR)

Complex FIR Filters

Polyphase Filters

Infinite Impulse-Response Filters (IIR)

Butterworth Filters

Chebyshev Filters

Elliptic Filters

Boxcar Filters

Cascaded Integrator Comb Filters

Fast Convolution Filters

Digital Signal Processors are powerful micro controllers, capable of executing large number of instructions at the same time. That capability makes them perfect choice for signal processing.
In the firmware of DSP one can implement digital filters, FFT and IDFT of a signal, cross-correlation, convolution and endless number of mathematical operations on signal data.
Currently in DSP designs we support only TMS320C series of DSPs from Texas Instruments.