改良麦氏输出变压器的三个绕组采用三线并绕，当然，也需要考虑绕组的极性。
The three windings of this modified version of the McIntosh output transformer are wound trifilar, again with proper consideration given to polarities.
利用MOS管、半桥驱动芯片LM27222、栅极驱动变压器等器件，设计了变极性矩形波发生电路。
A rectangular wave generating circuit has been designed with MOSFETs, half bridge driver chip LM27222 and gate drive transformer.
论述变压器绝缘试验中温度、升压速度、极性、铁心是否接地对绝缘试验结果的影响，并分析产生这些影响的原因。
The multi-point grounding fault of power transformer's iron-core accounts for a large proportion of all the common faults in the transformers.
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