Switchmode Power Supplies from 2KVA to 500KVA

Solid State SwitchMode Power Supplies

PCTI provides the highest current/power ratings of any high-frequency switchmode power supplies (SMPS) available globally. PCTI SMPS can support any combination of AC or DC inputs and outputs falling within the general parameters indicated below. DSP control and monitoring can also allow for universal AC inputs to accommodate a wide range of inputs spanning the variety of global distribution services. PCTI SMPS are solid state IGBT based on DSP PWM (digital signal processor, pulse width modulated) technology. 

For Your Application

PCTI's SMPS power ratings can range from 2KVA/KW to 500KVA/KW and include AC/AC, AC/DC, DC/DC and DC/AC designs. Options for our SMPS include any voltage input or output, EMI/RFI filtering, computer control via RS232, RS485, IEEE488/GPIB, or remote analog signals. Typical applications include communications, transportation, industrial processes and more.

Custom Products Designed for You

Our SMPS are built to customer order from a range of standard power and control modules, and offer high performance, high reliability and sophisticated control systems. A variety of computer interfaces are available to meet all of your power supply programming and control requirements. If you need help in specifying your SMPS, contact PCTI or request a quote.

AC/DC Power Supply
30KW DC Power Supply

Standard Specifications

The following specifications outline PCTI's SwitchMode Power Supply (SMPS) product line. Please contact PCTI for options not listed here or for assistance regarding your particular application.


  • Power range: 1KVA to 500KVA (500KW)
  • Input service: any AC or DC voltage (AC may be 1 or 3 phase), our DSP-based control can handle large voltage ranges (for example, 300-700DC)
  • AC input frequency: any frequency up to 20kHz
  • Output service: any standard voltage. AC may be 1 or 3 phase, or DC voltages from 24 to 750VDC
  • Voltage regulation: 0.1% for any line and load combination
  • AC output frequency: any frequency up to 20kHz
  • Frequency regulation: 0.05%
  • Sine wave generation: PWM (pure sine) or Square Wave
  • Control technology: digitally synthesized Pulse Width Modulation
  • THD-linear loads: 3%
  • THD-nonlinear loads: 4%
  • Efficiency: 90% or better

Standard Front Panel Devices

  • Input Circuit Breaker
  • Start Pushbutton Stop Pushbutton
  • Fault Reset Pushbutton
  • Power On Indicating light
  • Output Ammeter
  • Output Voltmeter


  • NEMA Enclosure Types: 1, 3R, 12, 4, 4X
  • Operating Temperature: -5C to 40C
  • Storage Temperature: -10C to 65C
  • Humidity: up to 90% non-condensing


  • Overcurrent Overvoltage
  • Undervoltage
  • Input Reverse Polarity
  • Overtemperature
  • Electronic
  • Current limiting
  • Input to output transformer isolation
  • Input MOVs
  • Output MOVs

Computer Interface / Remote Capability

  • Analog Signals: 4-20mA, 0-5V, 0-10V or
  • Computer Interface: ethernet, profibus, Modbus, CANbus, IEEE 488.2/GPIB, RS232, RS485
  • Functions: Start/Stop, Reset, Fault, Inhibit, Current Adjust, Voltage Adjust,
  • Fault Indication (UV, OV, OC, other)

Codes and Standards

  • IEC
  • NEMA
  • NEC
  • IEEE

Cooling Systems

  • Forced Air
  • Direct Water
  • Closed Loop Water to Water Heat Exchanger
  • Heatpipe
  • Natural Convection
  • Water System Protection: low flow, temperature, resistivity, leak detection, low level