JPS572165A - High voltage generating circuit - Google Patents

High voltage generating circuit

Info

Publication number
JPS572165A
JPS572165A JP7706680A JP7706680A JPS572165A JP S572165 A JPS572165 A JP S572165A JP 7706680 A JP7706680 A JP 7706680A JP 7706680 A JP7706680 A JP 7706680A JP S572165 A JPS572165 A JP S572165A
Authority
JP
Japan
Prior art keywords
high voltage
voltage
output
diode
circuit
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
Application number
JP7706680A
Other languages
Japanese (ja)
Inventor
Kyoji Shimoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7706680A priority Critical patent/JPS572165A/en
Publication of JPS572165A publication Critical patent/JPS572165A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
    • H04N3/185—Maintaining dc voltage constant

Abstract

PURPOSE:To prevent a fluctuation of high voltage output voltage caused by an anode current, by comparing the output of a detecting circuit that detects a high voltage output with the reference voltage set previously and controlling the potential at the low potential side of a high voltage winding of an FBT according to the result of comparison. CONSTITUTION:A diode 5 for use at a high voltage is connected to the high voltage side of an FBT4, and the high voltage output to be supplied to the anode of a CRT6 at the output side of the diode 5 is detected by a partial pressure resistance cosisting of resistances 7 and 8 to be connected to the base of a high voltage control transistor (TR)9. At the same time, a rectifying circuit 15 is connected to the low voltage side of the FBT4, and the output of the circuit 15 is connected to the collector of the TR9 as well as to the low potential side of high voltage of the FBT4. Then a Zener diode 10 for reference voltage is connected to the emitter of the TR9. The voltage of the resistance 7 that detected the high voltage is compared with the voltage set previously to a diode 10 through the circuit 15. Based on the result of this comparison, the potential at the low potential side of a transformer 4 is controlled. Thus a fluctuation of the high voltage output voltage due to an anode current is prevented.
JP7706680A 1980-06-05 1980-06-05 High voltage generating circuit Pending JPS572165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7706680A JPS572165A (en) 1980-06-05 1980-06-05 High voltage generating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7706680A JPS572165A (en) 1980-06-05 1980-06-05 High voltage generating circuit

Publications (1)

Publication Number Publication Date
JPS572165A true JPS572165A (en) 1982-01-07

Family

ID=13623414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7706680A Pending JPS572165A (en) 1980-06-05 1980-06-05 High voltage generating circuit

Country Status (1)

Country Link
JP (1) JPS572165A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6195672A (en) * 1984-10-16 1986-05-14 Matsushita Electric Ind Co Ltd High voltage stabilizing circuit
JPS63200964U (en) * 1987-06-17 1988-12-23
JPH0237876A (en) * 1988-07-28 1990-02-07 Matsushita Electric Ind Co Ltd High voltage stabirizing device
US7236145B2 (en) 2003-07-03 2007-06-26 Samsung Electronics Co., Ltd. CRT display device and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6195672A (en) * 1984-10-16 1986-05-14 Matsushita Electric Ind Co Ltd High voltage stabilizing circuit
JPH0342031B2 (en) * 1984-10-16 1991-06-25
JPS63200964U (en) * 1987-06-17 1988-12-23
JPH0237876A (en) * 1988-07-28 1990-02-07 Matsushita Electric Ind Co Ltd High voltage stabirizing device
US7236145B2 (en) 2003-07-03 2007-06-26 Samsung Electronics Co., Ltd. CRT display device and method

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