| 摘要 |
The cascode amplifier includes a lower voltage small signal, common emitter amplifier transistor and a high volt. common base transister. An active load circuit comprising a transistor of like conductivity with respect to the common base and common emitter transistor is coupled between the collector of the common base stage and a source of operating voltage. A disconnect diode, interposed between the emitter of the load transistor and the collector of the common base transistor, is based to a non-conductive state under quiescent condition, voltage dependent current feedback is provided from the emitter of the load transistor to the base of the common emitter transistor.
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