JPS6316778U

JPS6316778U -

Info

Publication number: JPS6316778U
Application number: JP10937386U
Authority: JP
Priority date: 1986-07-18
Filing date: 1986-07-18
Publication date: 1988-02-03

Description

[Brief explanation of the drawing]

第１図は本考案のコンバーゼンス回路の一実施
例を示すブロツク図、第２図、第３図は本実施例
のコンバーゼンス回路から出力されるコンバーゼ
ンス電圧の波形図、第４図は従来例のコンバーゼ
ンス回路から出力されるコンバーゼンス電圧の波
形図である。１_１，１_２，１_３，１_４……波形発生部、２_１，２_２，２_３，２_４……ＡＧＣ部、３……出力部
、４……コンバーゼンスヨーク、ＳＨ……水平同
期信号、ＳＶ……垂直同期信号、Ｖ_１，Ｖ_２，Ｖ
_３，Ｖ_４……波形発生部１_１，１_２，１_３，１_４の出力電圧、Ｖ_５……コンバーゼンス補正電圧。 Fig. 1 is a block diagram showing one embodiment of the convergence circuit of the present invention, Figs. 2 and 3 are waveform diagrams of the convergence voltage output from the convergence circuit of the present embodiment, and Fig. 4 is the convergence circuit of the conventional example. 3 is a waveform diagram of a convergence voltage output from the circuit. FIG. 1 ₁ , 1 ₂ , 1 ₃ , 1 ₄ ... waveform generation section, 2 ₁ , 2 ₂ , 2 ₃ , 2 ₄ ... AGC section, 3 ... Output section, 4 ... Convergence yoke, SH ... Horizontal synchronization signal, SV ... Vertical synchronization signal, V ₁ , V ₂ , V
₃ , V ₄ ... waveform generation section 1 ₁ , 1 ₂ , 1 ₃ , 1 ₄ output voltage, V ₅ ...convergence correction voltage.

Claims

[Claims for Utility Model Registration] A plurality of waveform generators that receive a variable frequency horizontal synchronization signal or a frequency variable vertical synchronization signal and generate sawtooth wave signals or perabola wave signals using an integrating circuit; and the waveform generator. are set up corresponding to each of the
an AGC unit that controls the amplitude of the sawtooth wave signal or the parabolic wave signal outputted from the waveform generation unit to a constant value that is not affected by synchronous frequency fluctuation; Select one or more waveforms from among the plurality of waveforms controlled by a convergence circuit having an output section that generates a convergence correction voltage to be corrected;