| 摘要 |
A current supply device for supplying a direct current, a sinusoidal current or a pulsed current to a load, the device having a conductor portion arranged for being connected in series with the load, the conductor portion being coupled with a magnetic circuit having at least one air-gap, a magnetic field detector device being arranged in the air-gap and being connected to a measuring or control circuit for producing an output signal representing the current supplied by the current supply device.
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