Power Conversion

Uninterruptible Power Supply (UPS) Reference Solution with Infineon 16-bit XC166 Family Microcontrollers and DSP

Infineon Technologies offers an extensive product portfolio for Industrial Power Conversion Systems - from real time embedded Microcontrollers to Smart Power ICs which are capable to control any Industrial Control System.

The UPS reference solution is complete reference solution offering outstanding Total Harmonic Distortion (THD) performance and high efficiency to achieve excellent closed loop response.

Key features:

• Online UPS: 5~20kVA single phase double conversion UPS with output transformer.
  • Modularized design structure includes:
  • Power assembly
  • Microcontroller board
  • Display panel
  • Battery charger
     
• The XC164CM (16bit MCU with DSP) achieved excellent closed-loop response
  
  • 50µs per interrupt for A/D conversion, Error/Offset and duty cycle calculation
  • THD: 0.53% at full load
  • Excellent transient response control (ICE62040-3 Dynamic Performance Classification 1)
     
• IGBT Module – IGBT H-Bridge in ECONOPACK
  • Achieved lower stray inductance and reduced switch-off voltage stress on IGBT
  • Enhanced inrush current withstand capability
  • 88.5% efficiency at 40KHz modulation frequency (IGBT @ 20KHz)

 
Powered by a high performance 16-bit XC164CM Microcontroller with DSP and the IGBT H-Bridge in ECONOPACK Module, this reference solution offers a modularized design structure that is well-suited for Online UPS development as shown in Figure 1.  
 

Figure 1: Infineon UPS Reference Solution Block Diagram (Microcontroller Module) 

  
Infineon’s 16-bit microcontroller offers comprehensive features with highly integrated peripherals for maximum speed and performance. Infineon's 16-bit microcontrollers are the perfect choice to control any power management systems due to the advanced Capture/Compare (CCU6E), powerful Multiply-Accumulate (MAC) unit to simplify complicated DSP algorithm and optimized ADC peripherals, which are dedicated to achieve high performance in any Industrial Power logic design. Our new XC166 family devices find its success story in Consumer Inverters and Industrial UPS applications, giving superior hardware solution and performance for your Industrial system requirements.

Infineon’s ECONOPACK IGBT Modules are compact solution with low stray inductance for the double conversion UPS with full bridge topology (Figure 2). 
 
 
Figure 2: Infineon's 600V IGBT H-Bridge in ECONOPACK

Using a H-bridge Unipolar PWM Modulation technique, the IGBT ECONOPACK Module can double the modulation frequency of the inverter, reduce the switching loss and improve the system efficiency, leading to system performance improvement system cost reduction as shown in Figure 3.

 
Figure 3: Unipolar PWM Modulation Techniques

Table 1: Complete Infineon Solution for UPS Designs

 
To reduce total system cost and increase system performance, there is a demand for integrated solutions. Our excellent technology for Microcontrollers and Power Semiconductors allows us to offer combine the best of various Infineon's reliable product portfolio into low cost, high performance Motor Drive Solution – what we call “ Smart Semiconductor Solutions”.

For Infineon’s new 16-bit Microcontrollers with DSP, please visit our product page at: http://www.infineon.com/XC164CM.

Figure 4: XC164CM Block Diagram

 
For Infineon’s new 8-bit XC800 family devices, please visit our product page at: http://www.infineon.com/XC866.
 

Figure 5: XC866 Block Diagram

For more information, please visit our 8-bit, 16-bit and 32-bit product pages at: http://www.infineon.com/microcontrollers.