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
