开关电路是脉冲数字系统中常用电路之一，由于负载电容的影响，限制了该电路的工作速度。
The switching circuit is offen used in the pulse digital system. As the switching circuit is acted on by capacitive load, the working speed of the switching circuit is limited.
但由于达到神经电位阈值所需的磁刺激脉冲能量较大，对电源功耗的要求限制了磁刺激的高频应用，本文研制了一种用于高频磁刺激仪的双向充电电路，用以降低功率消耗。
The objective of this paper is to present a novel design of the bidirectional charging circuit used in the high frequency magnetic stimulator to lower the electric power consumption.
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