JPS6485487A - Crt driving circuit - Google Patents
Crt driving circuitInfo
- Publication number
- JPS6485487A JPS6485487A JP24087387A JP24087387A JPS6485487A JP S6485487 A JPS6485487 A JP S6485487A JP 24087387 A JP24087387 A JP 24087387A JP 24087387 A JP24087387 A JP 24087387A JP S6485487 A JPS6485487 A JP S6485487A
- Authority
- JP
- Japan
- Prior art keywords
- operational amplifier
- grid
- cathode
- signal
- crt
- 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.)
- Pending
Links
Landscapes
- Transforming Electric Information Into Light Information (AREA)
Abstract
PURPOSE:To obtain a large driving voltage when an operational amplifier with a small output voltage is used by supplying a signal passing through the operational amplifier to output the signals of mutually opposite phases between the grid of a CRT and a cathode. CONSTITUTION:An operational amplifier 3 inversion-amplifies an input signal up to the full of positive/negative supply voltages, supplies an output signal to the cathode of a CRT 9, an operational amplifier 2, in the same way, non- inversion-amplifies the input signal from an offset reference level, and supplies the output signal through a capacitor 8 to the grid of the CRT 9. Since the separately amplified signals are supplied to the grid and the cathode, and the signals are mutually at opposite phases, when the gains of the operational amplifiers 2 and 3 are the same, the signal voltages between the grid and the cathode are added with the respective operational amplifier outputs, and the value of them becomes the double of the one operational amplifier output voltage. Consequently, when the operational amplifier with the small output voltage is used, the signal voltage between the grid and the cathode becomes the large value.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24087387A JPS6485487A (en) | 1987-09-28 | 1987-09-28 | Crt driving circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24087387A JPS6485487A (en) | 1987-09-28 | 1987-09-28 | Crt driving circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6485487A true JPS6485487A (en) | 1989-03-30 |
Family
ID=17065968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24087387A Pending JPS6485487A (en) | 1987-09-28 | 1987-09-28 | Crt driving circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6485487A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6218182A (en) * | 1985-07-16 | 1987-01-27 | Sony Corp | Display device |
-
1987
- 1987-09-28 JP JP24087387A patent/JPS6485487A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6218182A (en) * | 1985-07-16 | 1987-01-27 | Sony Corp | Display device |
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