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Current In vs Current Motor

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hacksmithCabe
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Current In vs Current Motor

What is the difference between Current in and Current Motor in the Realtime Data window?

Thanks!

frank
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Current in: current flow from battery

Current Motor: current flow towards motor.

y-hasebe
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I don't understand why current motor is always higher than current in .

Hasebe

frank
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Example:

At 50% duty cycle and 50V Battery:

Voltage Batt = 50V

Voltage towards motor = 50V * 0,5 (50% duty cycle) =25V

Lets say we push 20A towards the motor:

From Battery: 50V*10A = 500W

To motor: 25V*20A = 500W

Energy from Battery equals energy towards motor =500W

y-hasebe
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Thanks Frank,

Since the duty cycle is less than 100%, voltage at battery should be always higher than voltage at motor.

Hasebe

y-hasebe
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However, don't we also have to take into account the energy loss consumed by the drive circuit?

Hasebe