为了提高车用电子设备的可靠性，设计了几种电子设备自保护电路，以避免由于操作失误或其它原因而导致的电子设备损坏。
In order to enhance the reliability of the auto electronic equipments, several kinds of self-protection circuits are designed to avoid the damage to the equipments by wrong operation or else.
另外还研究智能功率模块7mbp75ra120的自保护功能和特点，设计了稳定、可靠的IPM驱动电路。
And the Intelligent Power Module (IPM) 7mbp75ra120's characteristic and self-protection function are studied as well, credible and steady driving circuits for IPM have been designed.
介绍了一种实用的GTR自保护驱动电路的原理及设计方法，并对该电路的退饱和保护功能进行了测试。
The principle and design method of practical drive circuit for GTR with self protection is introduced. The withdraw saturation protection of this circuit is also tested.
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