The LHW output power modes can be adjusted to meet the experimental requirements in HT-7 tokamak by controlling the PIN switches in the input powersub-system.
实验中通过前级PIN开关控制不同的低杂波输出模式，满足了HT-7装置相应实验对低杂波的要求。
2
In a second sub-mode ('low output powersub-mode'), VOUT is regulated using pulse width modulation, but the converter switching frequency is fixed at a first frequency.
In some embodiments, the converter has a third sub-mode (' high output powersub-mode '), in which pulse width modulation is used but the switching frequency is fixed at a second frequency.