JPH0357627U - - Google Patents

Info

Publication number
JPH0357627U
JPH0357627U JP11746489U JP11746489U JPH0357627U JP H0357627 U JPH0357627 U JP H0357627U JP 11746489 U JP11746489 U JP 11746489U JP 11746489 U JP11746489 U JP 11746489U JP H0357627 U JPH0357627 U JP H0357627U
Authority
JP
Japan
Prior art keywords
tuning
voltage
pair
varactor diodes
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11746489U
Other languages
Japanese (ja)
Other versions
JPH088418Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP11746489U priority Critical patent/JPH088418Y2/en
Publication of JPH0357627U publication Critical patent/JPH0357627U/ja
Application granted granted Critical
Publication of JPH088418Y2 publication Critical patent/JPH088418Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Details Of Flowmeters (AREA)
  • Measuring Volume Flow (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例に係る同調回路を含
むフロントエンドの回路図、第２Ａ図は相互変調
妨害が生じた場合を説明するための図、第２Ｂ図
は第２Ａ図の場合に本実施例の同調コントロール
電圧を調整して同調周波数をずらすことによつて
相互変調妨害を対策する動作を説明するための図
、第３図は従来の受信器における同調回路の回路
図である。 Ｔ……高周波変成器、Ｌ１，Ｌ２，Ｌ３……同
調コイル、Ｄａ，Ｄｂ，Ｄｏｓｃ……ツイン・バ
ラクタダイオード、Ｄ１，Ｄ２，Ｄ３，Ｄ４，Ｄ
５，Ｄ６……バラクタダイオード、Ｃａ，Ｃｂ，
Ｃｃ，Ｃ１，Ｃ１……コンデンサ、ＲＶ……可変
抵抗器、ＶＴ……同調電圧、Ｖｃｃ……バイアス
電圧、ＶＣＬ……同調コントロール電圧。 Fig. 1 is a circuit diagram of a front end including a tuning circuit according to an embodiment of the present invention, Fig. 2A is a diagram for explaining the case where intermodulation interference occurs, and Fig. 2B is a diagram for explaining the case of Fig. 2A. FIG. 3 is a diagram for explaining the operation of countering intermodulation interference by adjusting the tuning control voltage and shifting the tuning frequency in this embodiment, and is a circuit diagram of a tuning circuit in a conventional receiver. T...High frequency transformer, L1 , L2 , L3 ...Tuning coil, Da, Db, Dosc...Twin varactor diode, D1 , D2 , D3 , D4 , D
5 , D 6 ... Varactor diode, Ca, Cb,
Cc, C 1 , C 1 ... Capacitor, RV ... Variable resistor, VT ... Tuning voltage, V cc ... Bias voltage, VCL ... Tuning control voltage.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 逆バイアスの同調電圧がかけられこの同調電圧
に応じて容量が変化する一対のバラクタダイオー
ドと、この可変容量と並列に接続された同調コイ
ルとを有している同調回路において、前記一対の
バラクタダイオードのいずれか一方のアノード側
に、前記同調電圧より小さい同調コントロール電
圧が印加されていることを特徴とする受信器にお
ける同調回路。 In a tuning circuit comprising a pair of varactor diodes to which a reverse bias tuning voltage is applied and whose capacitance changes according to the tuning voltage, and a tuning coil connected in parallel with this variable capacitance, the pair of varactor diodes A tuning circuit in a receiver, characterized in that a tuning control voltage smaller than the tuning voltage is applied to one of the anode sides.
JP11746489U 1989-10-05 1989-10-05 Hot wire air flow meter Expired - Lifetime JPH088418Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11746489U JPH088418Y2 (en) 1989-10-05 1989-10-05 Hot wire air flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11746489U JPH088418Y2 (en) 1989-10-05 1989-10-05 Hot wire air flow meter

Publications (2)

Publication Number Publication Date
JPH0357627U true JPH0357627U (en) 1991-06-04
JPH088418Y2 JPH088418Y2 (en) 1996-03-06

Family

ID=31665680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11746489U Expired - Lifetime JPH088418Y2 (en) 1989-10-05 1989-10-05 Hot wire air flow meter

Country Status (1)

Country Link
JP (1) JPH088418Y2 (en)

Also Published As

Publication number Publication date
JPH088418Y2 (en) 1996-03-06

Similar Documents

Publication Publication Date Title
JPH0257627U (en)
JPS61128843U (en)
JPH0136357Y2 (en)
JPS5976119U (en) voltage controlled oscillator
JPS63178971U (en)
JPS6268331U (en)
JPS60101847U (en) Tuner in television receiver
JPH0464831U (en)
JPH0398528U (en)
JPH01153733U (en)
JPH03117943U (en)
JPH0290532U (en)
JPH0419023U (en)
JPS6433235U (en)
JPH0177046U (en)
JPH0174630U (en)
JPH0255485U (en)
JPS61113438U (en)
JPS63131237U (en)
JPS625722U (en)
JPH03111032U (en)
JPH02116123U (en)
JPS62183434U (en)
JPH0177040U (en)
JPS6344509U (en)