JPH0283587U

JPH0283587U -

Info

Publication number: JPH0283587U
Application number: JP16322088U
Authority: JP
Priority date: 1988-12-16
Filing date: 1988-12-16
Publication date: 1990-06-28

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示す概略構成図
、第２図はＶＰＣがＯＦＦからＯＮと連続的に動
作したときの、第１図の各部の波形の一例を示す
図、第３図は従来のストロークスキヤンＣＲＴデ
イスプレイ装置の概略構成図、第４図は二次電源
発生部の詳細図、第５図は輝度信号増幅器の詳細
図、第６図にＶＰＣがＯＮしたときおよびＶＰＣ
がＯＦＦからＯＮと連続的に動作したときの第３
図の各部の波形の一例を示す図である。図において、１は表示信号発生部、２は偏向信
号増幅器、３は輝度信号増幅器、４は二次電源発
生部、５はＣＲＴ、６はＣＲＴ駆動部、７は制御
回路、８はＤＣ電圧発生器、９は高電圧発生器、
１５はモニタ回路である。尚、各図中同一符号は
同一または相当部分を示す。 Fig. 1 is a schematic configuration diagram showing an embodiment of this invention, Fig. 2 is a diagram showing an example of waveforms of each part in Fig. 1 when VPC operates continuously from OFF to ON, and Fig. 3. 4 is a detailed diagram of the secondary power generation section, FIG. 5 is a detailed diagram of the luminance signal amplifier, and FIG. 6 is a diagram showing the schematic configuration of a conventional stroke scan CRT display device.
The third condition when the is operated continuously from OFF to ON.
It is a figure which shows an example of the waveform of each part of a figure. In the figure, 1 is a display signal generator, 2 is a deflection signal amplifier, 3 is a luminance signal amplifier, 4 is a secondary power supply generator, 5 is a CRT, 6 is a CRT driver, 7 is a control circuit, and 8 is a DC voltage generator. 9 is a high voltage generator,
15 is a monitor circuit. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

Display signal generator that generates deflection voltage signals and brightness command signals, and external power ON/OFF
Input the signal, the primary power supply supplied from the outside, and the high voltage +VH, and detect the power OFF state of the power ON/OFF signal and the voltage level of the high voltage +VH until the high voltage +VH drops to OV without fail. A monitor circuit that generates a power control signal that maintains the power _OFF state for a period of
V ₁ , a secondary power generation section that generates the DC voltage +V ₂ and the high voltage +VH, and the DC voltage ±V ₀ a deflection signal amplifier that converts the deflection voltage signal into a deflection current signal and supplies the signal to the CRT;
The DC voltage ±V ₁ and the DC voltage +V ₂ are supplied, and the brightness command signal is converted into a brightness control signal amplified to the voltage necessary to drive the CRT.
1. A stroke scan CRT display device comprising: a luminance signal amplifier for supplying a signal to a stroke scan CRT display device.