| 摘要 |
A method and system are disclosed for controlling AC current supplied to an inductive load (LOAD) from an AC powerline (50/60 HZ POWER INPUT) using an SPDT switch (SPDT SWITCH) or its electronic equivalent. The switch alternately either connects the inductive load (LOAD) to the AC powerline (50/60 HZ POWER INPUT) or short-circuits its terminals. Rapid switching between those two states is used to control the current to inductive load (LOAD). Using the method and system, correction of lagging power factor, control of current waveshape, control of load current waveshape and a very precise control of current in the load are all possible. |
