一种能抑制串联谐振全桥DBD电路参数变化的电路研究

Study on a Circuit Restraining the Full Bridge Series Resonant DBD Circuit Parameter Change

提出了一种能抑制DBD电路参数变化的并能保证主电路始终工作在感性状态下的控制电路,该电路通过利用触发脉冲的下降沿和电流过零点这段时间间隔,对电路中的电流实行积分,并与感性实现的临界条件进行比较,作出判断,保证该电路工作于感性工作条件。仿真结果验证该电路确实能够抑制电路中的某些参数变化,使电路保持零电压开通。

A control circuit running throuthout under the inductive condition is presented to restrain the DBD electric circuit parameter change. Through the period of time-gap between trigger pulse drop time and the current zero time, integral of the circuit current is structured and compared with the critical condition of inductive condition so that it can make jugement to assure the circuit working in the inductive condition. The simulation result confirms the circuit can restrain some parameter change and keep clearing in zero vohage.