PED-Board | PED-Board

– PED-Board concept –

A dedicated board having the specific features that cover the requirements of the Power Electronics and Drives (PED) applications. Accordingly, the PED-Board has been designed and realized to exploit the benefits of the NI SoM (formally sbRIO-9651) and LabVIEW graphical programming. PED-Board incorporates ADC, DAC, CAN-bus and many other functionalities that can cover the requirements of a typical PED project.

Proposed PED-Board can be connected to almost every power converter thanks to the application specific Adapter Board. The Adapter Board is placed on top the PED-Board providing mainly the required connections to the outer world.

PED-Board is the right companion for the so called software-defined PED application
One board, specific software…a world of possibilities

FUNCTIONAL BLOCK DIAGRAM

FEATURES

30 x PWM channels

0÷15 V or 0÷5V selectable voltage swing
Direct LED driving capability for optocoupled gate driver
Additional PWM channels available through the Digital I/O interface

14-bit ADC, 8 Channels

Simultaneous sampling
1.45 μs conversion time, 8 channels
Differential or single-ended input (each channel)
Configurable scaling circuit (each channel)
Second order low-pass Butterworth active filter with
configurable cut-off frequency

14-bit ADC, 8 Channels

Simultaneous sampling
1.45 μs conversion time, 8 channels
Differential or single-ended input (each channel)
Configurable scaling circuit (each channel)
First order low-pass Butterworth active filter with configurable
cut-off frequency and impedance matching circuit

10-bit ADC, 8 Channels

Up to 200 kS/s

12-bit DAC, 4 Channels

Digital-to-analog converter with 10 μs settling-time
Isolated, no ground loops

Resolver interface

Fully configurable electrical interface
Speed and position measurement
Resolver fault detection

36 x Digital I/O

Hall-effect position sensors interface
Encoder interface
Relay control
Additional PWM
General purpose I/O

1 x 10/100/1000 base-T Ethernet port

Auto-negotiated, half/full-duplex
Programming, debugging and operation

1 x RS-485

Isolated transceiver
Half-duplex and full-duplex communication
On-board terminator resistor

1 x CAN-bus

2.0A and 2.0B support, up to 1 Mbit/s
Isolated transceiver
On-board terminator resistor

USB port

Dedicated LabVIEW drivers and demo programs have been developed to completely support the user in the application software design stage. Each peripheral is fully supported by the LabVIEW CLIP and/or a specific VI. Kernel programs are available for users with properly designed FPGA main scheduler, Real-Time target task, synchronization etc…

Concluding, proposed PED-Board can be certainly used in the fields of Power Electronics and Electrical Drives as main control board. It integrates on the same platform low-level high-speed control features on the FPGA; whereas complex tuning or control algorithms, main communication interfaces and web services can be located on the Real-Time target (CAN-bus, RS-485, Ethernet; Linux OS).