发明名称 Frequency converter, as for first detector of heterodyne radio receiver
摘要 A frequency converter including a first pair of transistors with an interconnection between their emitters for receiving a unidirectional current with signal variations to be converted, at least one of their collectors arranged to supply converted signal currents. A second pair of transistors with an interconnection between their emitter electrodes connected by resistor to reference potential is connected to regenerate oscillations in a tank circuit. One of these transistors has its collector connected to the tank circuit; the other has its base connected to receive scaled-down oscillations from the tank circuit and has its collector provided with a resistive load to develop switching signal to be applied between the base electrodes of the first pair of transistors. Appropriate scaling of the resistive load to the emitter resistor shared by second pair of transistors results in maximum conversion efficiency.
申请公布号 US4253196(A) 申请公布日期 1981.02.24
申请号 US19800112173 申请日期 1980.01.15
申请人 RCA CORPORATION 发明人 MALCHOW, MAX E.
分类号 H03D7/12;(IPC1-7):H04B1/28 主分类号 H03D7/12
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