In the earlier days, a single wavelength light beam was used to transmit data, which limited the bandwidth to the maximum operating frequency of the transmitting and receiving end equipment.
2.
The maximum operating frequency of TCK varies depending on all chips in the chain ( the lowest speed must be used ), but it is typically 10-100 MHz ( 100-10 ns per bit ).
3.
When changing VFD frequency in standard low-performance variable-torque applications using Volt-per-Hertz ( V / Hz ) control, the AC motor's voltage-to-frequency ratio can be maintained constant, and its power can be varied, between the minimum and maximum operating frequencies up to a base frequency.
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