6th Gen Digital Signal Processing

PCTI is pioneering the use of DSP (digital signal processing) in all of our products and is proudly introducing our sixth generation of using DSP control. This new generation uses the Texas Instruments TMS320F28M36, which combines C2000 floating point DSP and Cortex M3 ARM into one single chip.  Simply put, floating point DSPs enable more advanced controlling algorithms, while M3 ARM can implement control panel and remote communications with any of our machines, inverters, and frequency converters. The new digital signal processing is presently being implemented into our inverters and frequency converters and by the end of 2015 it will be implemented in all of our products!

We are excited to include this innovative technology in all we do because of the advantages with using more flexible software instead of cumbersome hardware has on every aspect of its integration- from labor to redesign. It is this DSP technology that permits PCTI to be very flexible in designing and producing custom power electronics for our customers using a wide variety of innovative topologies. Part of the flexibility of DSP designs is due to the fact that writing and updating software is less time consuming and labor intensive than designing new control hardware.

What is DSP?

DSP, or digital signal processing, is used to manipulate analog data that has been converted into a digital version. A digital signal processor contains a sophisticated microprocessor that improves the operational needs a digital environment requires. PCTI is thrilled to be leading the way for the integration of this cutting-edge technology into our equipment.


PCTI first commercialized DSPs in 1998; the idea of switching from firm hardware to flexible software for control solutions for power electronic products has yet to be implemented by any competitors. The benefits from these new DSPs include an LCD keypad operating panel, an interface that includes RS-232, serial ports, Ethernet port, USB ports, and CANBUS. The DSPs are capable of increasing power to 1MVA for 50/60Hz units, switching to frequencies as low as 1.5kHz. The 400Hz units have improved output waveform, advanced resonant controllers, and high resolution PWM. Logging data and event recording capabilities are unprecedented, with easy file saving through its MicroSD card capabilities.

PCTI DSP Controller
Universal DSP Controllers

PCTI’s Universal DSP Controllers are capable of handling various topologies while competitive non-digital signal processing versions are only application specific.  Along with increasing performance, application and design flexibility, digital signal processors also reduce the bulkiness in the unit. Power electronics become smaller and lighter while still increasing the power and improving the output waveform quality. This technology also allows for a reduction in energy usage. The more stream-lined designs that DSPs provide translates into decreased manufacturing, labor and transportation cost which can provide for a total savings of 20 to 50 percent.

Fast, optimized industrial equipment sold at lower cost is a reality, thanks to digital signal processing technology and the professionals at implementing this technology at PCTI. PCTI embraces this and welcomes the application possibilities for power equipment in modern industry.

About PCTI

Power Conversion Technologies, Inc. is a certified DBE woman-owned business.  PCTI designs and manufactures leading edge power electronic equipment in the highest power ranges. PCTI’s engineering staff has in-depth knowledge in the key areas of power conversion such as power semiconductor analysis and application, thermal exchange, magnetic design, packaging, DSP (digital signal processor) control for invertersfrequency convertersDC power suppliesbattery chargers and dischargers. Contact us for more information on our products, applications assistance, or pricing.

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