In this paper the propagation of pulse wave on and the mutual coupling between conductors of a multi-conductor transmission system are analysed from the basicvoltage and current equations.
A fairly basic circuit (left as an exercise, but it's not difficult) can take the control voltage and output a constant current which is proportional to the voltage.
一个相当基础的电路(留作练习，不过并不难)处理控制电压并输出与电压成比例的恒流。
3
Basic formulas for the calculation of bar to bar voltage distributing curve of DC motor commutator are derived and test-verified.