SU511731A1 - Screen tube protection device - Google Patents

Screen tube protection device

Info

Publication number
SU511731A1
SU511731A1 SU2043469A SU2043469A SU511731A1 SU 511731 A1 SU511731 A1 SU 511731A1 SU 2043469 A SU2043469 A SU 2043469A SU 2043469 A SU2043469 A SU 2043469A SU 511731 A1 SU511731 A1 SU 511731A1
Authority
SU
USSR - Soviet Union
Prior art keywords
diode
cathode
protection device
anode
screen tube
Prior art date
Application number
SU2043469A
Other languages
Russian (ru)
Inventor
Анатолий Анатольевич Пасюков
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 SU2043469A priority Critical patent/SU511731A1/en
Application granted granted Critical
Publication of SU511731A1 publication Critical patent/SU511731A1/en

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Description

(54) УСТРОЙСТВО ДЛЯ ЗАЩИТЫ ЭКРАНА КИНЕСКОПА(54) DEVICE FOR PROTECTION OF KINESCOPE SCREEN

Емкость конденсатора 5 выбираетс  такой , чтобы к моменту устанорпени  нулевого значени  источника питани  6 на конденсаторе 5 сохранилось напр жение, превыша1с щее значение напр жени  запирани  кинеско па 3, а врем  разр да конденсатора 5 после выключени  источника питани  6 превышало врем  прекращени  эмиссии катодом кинескопа 3. Цепочка 1, состо ща  из параллел но соединенных резистора 1-1 и конденсате ра 1-2, ограничивает ток луча кинескопа 3.The capacitance of the capacitor 5 is chosen such that by the time the zero value of the power source 6 is set on the capacitor 5, the voltage remains above the lock-out voltage of the kinescap 3, and the discharge time of the capacitor 5 after turning off the power supply 6 exceeds the kinescope emission tube 3 Chain 1, consisting of parallel-connected resistors 1-1 and capacitor 1-2, limits the current of the kinescope beam 3.

Таким образом, после выключени  источника питани  6 напр жение на модул торе кинескопа 3 становитс  равным нулю, а неч пр жение на конденсаторе 5, а следователь но и на катоде кинескопа 3, оказываетс  достаточным дл  его запирани .Thus, after turning off the power source 6, the voltage on the modulator of the kinescope 3 becomes equal to zero, and not hiding on the capacitor 5, and therefore on the cathode of the kinescope 3, is sufficient to lock it.

Claims (1)

Формула изобретени Invention Formula Устройство дл  защиты экрана кинескопа , содержащее цепочку из параллельно соединенных резистора и ксааденсатора, в1о1К ченных между анодом выходной лампы видеоусилител  и катодом кинескопа, полупроводниковый диод и зар дно-разр дный конденсатор , отличающеес  тем, что, с целью уменьшени  искажений видеосигнала и упрощени  схемы, анод диода подклкьчен к плюсовому выводу источника питани , катод диода - к анодной нагрузке лампы видеоусшштел , а зар дно-разр дный конденсатор подключен между катодом диода и минусовым выводом источника питани .A device for protecting a kinescope screen containing a chain of parallel-connected resistors and a xa-adapter that is connected between the anode of the output amplifier of the video amplifier and the cathode of the kinescope, a semiconductor diode and a charge-discharge capacitor the diode anode is connected to the positive output of the power source, the cathode of the diode is connected to the anode load of the video lamp, and the charge-discharge capacitor is connected between the cathode of the diode and the negative terminal of the source nutrition j- ТГ-тj- TG-t
SU2043469A 1974-07-01 1974-07-01 Screen tube protection device SU511731A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2043469A SU511731A1 (en) 1974-07-01 1974-07-01 Screen tube protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2043469A SU511731A1 (en) 1974-07-01 1974-07-01 Screen tube protection device

Publications (1)

Publication Number Publication Date
SU511731A1 true SU511731A1 (en) 1976-04-25

Family

ID=20590824

Family Applications (1)

Application Number Title Priority Date Filing Date
SU2043469A SU511731A1 (en) 1974-07-01 1974-07-01 Screen tube protection device

Country Status (1)

Country Link
SU (1) SU511731A1 (en)

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