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Bipolar Current Amplifier  [DT-1028]
The DT-1028 is a current amplifier for developing virtual motors for connection to actual inverters.
 
Overview
This bipolar current amplifier is a voltage/current converter amplifier that outputs current in proportion to an input voltage. It is capable of 3-phase output and can output a max voltage of ± 20 V and a max current of ±2 A. 
Input voltage range is ±10 V and output is controlled to within ±2 A.
The current direction can be controlled by the impressed voltage. Positive voltage produces a source current (outflow), while a negative current produces a sink current (inflow). Also, output current can be interrupted.