BD3.1 fast eddy current brake power supply interface

Price range: 2.767,50zł through 3.936,00zł

BD3.1 interface is an essential device used to power eddy current dyno brake. Is carries out following tasks:

  • Mains AC to DC conversion to power the brake winding.
  • Brake current regulation according to received CAN bus message

Specification

  • Supply: 100-415VAC, 50-60Hz, 1-3 phase
  • Nominal brake current up to 22.5A, up to 30A
  • Fast brake torque control with microcontroller operated closed loop current control and fast discharge (demagnetization).
  • Thermal protection
  • Isolated input
  • Brake energy recovery to capacitor
SKU: N/A Category:

Torque control demonstration:

Speed control demonstration:

Specification

Supply 100-415VAC
50-60Hz
1-3 phase
Brake continuous current BD3.1-22.5A:
22.5A @ 25°C
22.5A @ 40°C for 9 minutes
19A @ 40°C
no time limits with 30m³/h airflow 

BD3.1-30A:
30A @ 25°C for 8 minutes
30A @ 40°C for 4 minutes
25A @ 25°C for 11 minutes
25A @ 40°C for 5 minutes
no time limits with 30m³/h airflow

Brake discharge method Fast discharge with storage capacitor
Typical full charge time
(0 to full torque)
Less than 0.2s
Typical full discharge time
(full torque to 0)
Less than 0.02s
Switching frequency Adaptive, up to 4kHz
Brake current control Controlled with microcontroller in closed loop
Current target control Programmable current range
Galvanically isolated CAN bus interface, CAN-BUS 2.0B, 500kBit
Diagnostics CAN bus:
Brake current
Power stage temperature
Switching frequency

Additional information possible in future with firmware updates
Environment temperature range −20°C – 50°C
Power stage thermal protection threshold 90°C
Operating humidity 0%-95% without condensation
Dimensions 14cm x 18cm x 12cm
Mass 1.7kg

Capacitor dimensions:

  • 250uF: ⌀85×134,5mm
  • 600uF: ⌀116x130mm
  • 1200uF: ⌀116x230mm

Capacitor cables in the picture are for illustration purpose and are not included.

Full specification and instruction manual

BD series brake power supplies comparison

I

22.5A, 30A

C

250uF, 600uF, 1200uF, 2x1200uF