The Dual Half Bridge (DHB) is a high current amplifier which allows low current auxiliary outputs to drive high current loads such as motors. It contains two high current half bridge outputs enabling it to drive a single motor in two directions, or drive two motors in a single direction. It is also capable of high speed PWM, which can be used for speed control of motors and for other purposes.
The DHB connects to any auxiliary output of a MoTeC ECU or Dash Logger, which performs the control function, such as PWM speed control, direction control or servo control.
The fully sealed case makes the DHB suitable for under bonnet mounting.
Servo motor e.g. active wing control, boat trim control, inlet runner length control, variable valve lift.
Motor speed control e.g. electric water pump, thermo fan, fuel pump.
All MoTeC ECUs
All MoTeC Dash Loggers
Continuous DC current 20 A (total)
Peak surge current 500 A
Max. operating frequency 50 kHz @ 28 V
Switching delay, typical
High to low 6.5 µsec
Low to high 6.5 µsec
Input threshold, typical
High 2.8 V
Low 2.1 V
7.0 V to 55 V with under voltage lockout
Size 31.4 x 38.0 x 14.0 mm
Weight approximately 60 grams plus connectors
Power: 2 pin DTP Male
Motor /Output: 2 pin DTP Female
Input: 2 pin DTM Male
Maximum case temperature 125 °C
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