| 摘要 |
A semiconductor device, comprising a transistor, a constant voltage diode having a first end of a first conductivity type connected to an emitter of the transistor and a second end of a second conductivity type, a reverse current preventive diode having a first end of the first conductivity type connected to a collector of the transistor and a second end of the second conductivity type connected to the second end of the constant voltage diode, and a high speed diode reverse-bias connected between the transistor collector and the emitter of the transistor.
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