JPS5866371U

JPS5866371U - Signal level switching device

Info

Publication number: JPS5866371U
Application number: JP16196181U
Authority: JP
Inventors: 小谷野　隆
Original assignee: 八木アンテナ株式会社
Priority date: 1981-10-30
Filing date: 1981-10-30
Publication date: 1983-05-06

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は被測定回路としての帯域沖波器の特性を示す図
、第２図は従来の周波数特性測定装置の構成を示す図、
第３図は本考案の基本的構成を示すブロック図、第４図
は第３図における切換減衰器の構成を示す図、第５図は
第４図における切換スイッチの詳細を示す回路構成図、
第６図は第３図における切換減衰器を電圧制御減衰器に
より構成した場合のブロック図、第７図は第６図におけ
る電圧制御減衰器の詳細を示す回路構成図、第８図は本
考案の他の実施例を示すブロック図、第９図ａ　”−ｃ
はそれぞれ本考案の更に他の実施例を示すブロック図、
第１０図は本考案装置を周波数特性測定装置に応用した
場合の構成を示すブロック図、第１１図は第１０図にお
けるモニタスコープの波形観測例を示す図である。１０・・・信号レベル切換装置、１１・・・入力端子、
１２・・・増幅器、１３・・・切換減衰器、１４・・・
出力端子、２１・・・減衰器、２２・・・切換スイッチ
、４１１〜４１ｎ・・・電圧制御減衰器、４２・・・方
形波発振器。 − ５９０５９６６０２６０８１？ｉ東（ＭＨｚ　）−ｍ− １２第７図第８図FIG. 1 is a diagram showing the characteristics of a bandpass transducer as a circuit under test, and FIG. 2 is a diagram showing the configuration of a conventional frequency characteristic measuring device.
FIG. 3 is a block diagram showing the basic configuration of the present invention, FIG. 4 is a diagram showing the configuration of the switching attenuator in FIG. 3, and FIG. 5 is a circuit configuration diagram showing details of the changeover switch in FIG. 4.
Fig. 6 is a block diagram when the switching attenuator in Fig. 3 is constructed by a voltage-controlled attenuator, Fig. 7 is a circuit diagram showing details of the voltage-controlled attenuator in Fig. 6, and Fig. 8 is a block diagram of the present invention. Block diagram showing another embodiment of FIG. 9a"-c
are block diagrams showing still other embodiments of the present invention, respectively;
FIG. 10 is a block diagram showing the configuration when the device of the present invention is applied to a frequency characteristic measuring device, and FIG. 11 is a diagram showing an example of waveform observation by the monitor scope in FIG. 10. 10... Signal level switching device, 11... Input terminal,
12...Amplifier, 13...Switching attenuator, 14...
Output terminal, 21...attenuator, 22...changeover switch, 411-41n...voltage controlled attenuator, 42...square wave oscillator. -590596602608 1? i East (MHz)-m- 12 Figure 7 Figure 8

Claims

[Scope of utility model registration request]

(1) A level conversion means for amplifying or attenuating one input signal and converting it into a plurality of signals of different levels is realized, and the signals of the plurality of different levels are switched at high speed and output. Features a signal level switching device.

(2) The signal level switching device according to claim 1, wherein the level converting means comprises an amplifier and a switching attenuator connected in series.

(3) The scope of the utility model registration claim characterized in that the switching attenuator is composed of a variable attenuator and a high-speed switching switch using a semiconductor that shorts or opens between the input and output terminals of the variable attenuator. 2. The signal level switching device according to item 2.

(4) The signal level switching device according to claim 2, wherein the switching attenuator is a voltage-controlled semiconductor variable attenuator.

(5) The level conversion means alternately connects a first circuit consisting of a conductive line or an attenuator, a second circuit consisting of an amplifier, and the first circuit and the second circuit to input and output terminals. A signal level switching device according to claim 1, characterized in that the signal level switching device comprises a high-speed switching switch.