| 摘要 |
A system and method for measuring in real-time the current of a current mode driver circuit for writing data through a write head in tape or disk drive storage devices, the current mode driver circuit including one or more current mirror circuits for providing a current output in proportion to current through the write head during a write operation, the system comprising: device for converting the current mirror circuit current output into a first voltage; device for generating a second voltage representing a reference current; and, a device for comparing the first voltage value to the second voltage and generating an output signal indicating a ratio of the first and second voltages, the ratio being a measure of the current output of the current mirror circuit.
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