Circuit Description - Kenwood KAC-PS811D Service Manual

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Instruction manual (29 pages)

Instruction manual (12 pages)

Table Of Contents

Table of Contents

Current detection circuit

Amplify and rectify potential differences at

two points in the primary-side current circuit

and send it to the AD-port of the MPU and

obtain data for displaying current value.

Constant current output circuit

Remove troubles caused by the potential

differences between the constant current

output and the GND, so that the GND po-

tential differences between the H/U and the

AMP is not overlapped in the AMP to H/U

communication.

I2C buffer

Using an IC for I2C communication, be-

tween-AMP communication is conducted so

that there will be no trouble from GND po-

tential differences.