AWAGO A7800 5V Isolation Amplifier IC TO-220AB If the receiver input is

If the receiver input is open circuit

MAX487 is designed for half-duplex Applications

Distributed Power Architecture

Brown for these 7K5 resistors

Motor Phase and Rail Current Sensing

AWAGO A7800 5V Isolation Amplifier IC TO-220AB If the receiver input isThe A7800 HCPL 7800(A) isolation amplifier family was designed for current sensing in electronic motor drives. The A7800 detects the analogue voltage drop caused by motor currents flowing through an external resistor in a typical design. A differential output voltage is created on the other side of the A7800 optical isolation barrier. The motor current is proportional to the differential output voltage, which can be converted to a single ended signal