JPH028221U

JPH028221U -

Info

Publication number: JPH028221U
Application number: JP8511488U
Authority: JP
Priority date: 1988-06-29
Filing date: 1988-06-29
Publication date: 1990-01-19

Description

[Brief explanation of drawings]

第１図は本考案に係る可変移相回路の一実施例
を示す構成ブロツク図、第２図は第２図の可変移
相回路４の直流等価回路、第３図は同交流等価回
路、第４図は本考案に係る可変移相回路の第２の
実施例を示す要部構成ブロツク図、第５図は本考
案に係る可変移相回路の第３の実施例を示す要部
構成ブロツク図、第６図は従来の可変移相回路の
一例を示す構成ブロツク図、第７図は従来の可変
移相回路の他の例を示す構成ブロツク図である。ＶＣ_１，ＶＣ_２，ＶＣ_３，ＶＣ_４，ＶＣ_５，Ｖ
Ｃ_６……可変容量ダイオード、Ｖ……制御電圧。 FIG. 1 is a configuration block diagram showing one embodiment of the variable phase shift circuit according to the present invention, FIG. 2 is a DC equivalent circuit of the variable phase shift circuit 4 of FIG. 2, and FIG. 3 is an AC equivalent circuit of the same, and FIG. FIG. 4 is a block diagram showing a second embodiment of the variable phase shift circuit according to the present invention, and FIG. 5 is a block diagram showing a third embodiment of the variable phase shift circuit according to the present invention. , FIG. 6 is a block diagram showing an example of a conventional variable phase shift circuit, and FIG. 7 is a block diagram showing another example of a conventional variable phase shift circuit. VC ₁ , VC ₂ , VC ₃ , VC ₄ , VC ₅ , V
_C6 ...variable capacitance diode, V...control voltage.

Claims

[Scope of utility model registration request]

A variable phase shift circuit that obtains a variable amount of phase shift by changing the capacitance of a variable capacitance diode with a control voltage, characterized in that two variable capacitance diodes are connected in parallel with opposite polarity to each other in alternating current. variable phase shift circuit.