吸收电容在电路中起的作用类似于低通滤波器，可以吸收掉尖峰电压。通常用在有绝缘栅双极型晶体管（IGBT），消除由于母排的杂散电感引起的尖峰电压，避免绝缘栅双极型晶体管的损坏。
基于这些方程，研究了实现软开关的条件，并从关断损耗和占空比丢失的角度探讨了吸收电容与电路最高工作频率的关系，给出了工程设计公式。
Based on the equations, the condition of ZVS is analyzed, and the engineering design method of highest working frequency is discussed, which is based on dissipation of turning off and duty cycle lose.
超级电容可以用作吸收电涌、存储电能，从而使得输电线路接近满负荷运转。
Banks of ultracapacitors could be set up to absorb power surges, enabling transmission lines to run closer to 100 percent capacity.
本文研究基于超级电容储能方式的城市轨道交通再生制动能量吸收利用技术。
In this paper, an absorbing and utilizing technology for the brake regenerating energy in urban transit based on ultra-capacitors is researched.
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