VT7820

Rotation Sensor Module

The VT7820 is a dedicated application board for VT7900A FPGA. It is designed for the simulation of rotational sensors and can be used e.g. for testing of brake control ECUs or motor ECUs.

Rotation Sensor Module VT7820 mounted on Extension Module VT7900A FPGA.

Characteristics:
VT7820

Module Features

  • Simulation of wheel speed sensors (S-, I- and V-type)
  • Simulation of cam- and crankshaft sensors
  • Number of encoder wheel teeth and gaps freely configurable
  • Voltage or current modulated signal
  • Digital levels and slew rate freely adjustable
  • Fault injection (short circuit, line break)

Technical Data

VT7820
Voltage modulation
  Output voltage (range/resolution) -12 V … 12 V / ± (2 % + 0,5 V)
  Output current Max. 50 mA
  D/A converter 14 bit
  Tooth frequency Max. 1 MHz
  Slew rate (resistive load) 190 V/µs
Current modulation
  Output current (range/resolution)
0 mA … 100 mA ± ( 2% + 1mA)
0 mA … 50 mA ± (2 % + 1mA) at voltages > 12 V and load < 100 Ω
  Input voltage range 0 V … 24 V
  D/A converter 14 bit
  Tooth frequency Max. 300 kHz
  Slew rate (resistive load) 250 mA/µs
Basic Data
  Supply voltage (via backplane) 12 V ±10 %
  Power consumption Max. 8.6 W (all relays powered)
  Temperature range 0 … 55 °C
  Dimensions (L x W x H) 300 x 173 x 36 mm (on VT7900A FPGA)
  Weight Approx. 110 g / approx. 450 g incl. VT7900A FPGA

Schematic

Schematic of one channel of the VT7820

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