KR20080022608A - Apparatus for controlling power of (an) image display device - Google Patents

Apparatus for controlling power of (an) image display device Download PDF

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KR20080022608A
KR20080022608A KR1020060085939A KR20060085939A KR20080022608A KR 20080022608 A KR20080022608 A KR 20080022608A KR 1020060085939 A KR1020060085939 A KR 1020060085939A KR 20060085939 A KR20060085939 A KR 20060085939A KR 20080022608 A KR20080022608 A KR 20080022608A
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voltage
power
pfc
power supply
unit
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KR1020060085939A
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KR100871488B1 (en
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심재두
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엘지전자 주식회사
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
    • G09G3/293—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for address discharge
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
    • G09G3/294—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Rectifiers (AREA)

Abstract

A power control device for an image display device is provided to minimize an operation error of a PDP module by stabilizing an operation sequence inside the PDP module. A main controller(800) outputs a control signal according to a user request. A power supply(100) supplies an AC voltage. A PFC(Power Factor Correction) block(400) receives the AC voltage from the power supply and generates a predetermined constant voltage. A multiple voltage generator(500) receives the constant voltage from the PFC block and generates various voltages for respective loads. A switching unit(900) selectively supplies a voltage from the multiple voltage generator to a PDP(Plasma Display Panel) module according to the control signal from the main controller.

Description

영상표시기기의 전원 제어장치{Apparatus for controlling power of (an) image display device}Apparatus for controlling power of (an) image display device}

도 1은 종래 기술에 따른 영상표시기기의 전원 제어장치를 나타낸 블록도.1 is a block diagram showing a power supply control apparatus for a video display device according to the prior art.

도 2는 본 발명에 따른 영상표시기기의 전원 제어장치를 나타낸 블록도.Figure 2 is a block diagram showing a power supply control apparatus for an image display device according to the present invention.

<도면의 주요 부분에 대한 설명>Description of the main parts of the drawing

100 : 전원 입력부 200 : 스탠바이 전원부100: power input unit 200: standby power unit

310, 320, 330 : 제 1, 2, 3 릴레이310, 320, 330: first, second, third relay

400 : PFC 500 : 멀티전압 발생부400: PFC 500: Multi-voltage generator

600 : Vs 전원부 700 : Va 전원부600: Vs power supply part 700: Va power supply part

800 : 주제어부 900 : 스위칭부800: main controller 900: switching unit

본 발명은 전원 제어장치에 관한 것으로, 특히 플라즈마 디스플레이 패널(Plasma Display Pannel, 이하 PDP라 약칭함)의 오방전 및 기타 신뢰성을 확보할 수 있도록 한 전원 제어장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply control device, and more particularly, to a power supply control device capable of ensuring mis-discharge and other reliability of a plasma display panel (hereinafter referred to as PDP).

일반적으로 PDP는 가스 방전에 의해 발생되는 진공 자외선이 형광체를 여기시킬 때 형광체로부터 가시광선이 발생되는 것을 이용한 표시장치로써, PDP는 지금까지 표시수단의 주종을 이루어왔던 음극선관에 비해 두께가 얇고 가벼우며, 고선명 대형화면의 구현이 가능하다는 점등의 장점이 있으며, PDP는 매트릭스 형태로 배열된 다수의 방전셀들로 구성되며, 하나의 방전셀은 화면의 한 화소를 이루게된다.In general, the PDP is a display device that generates visible light from the phosphor when the vacuum ultraviolet rays generated by the gas discharge excite the phosphor. The PDP is thinner and lighter than the cathode ray tube, which has been mainly used for display means. In addition, there is an advantage of lighting that a high-definition large screen can be realized, and the PDP is composed of a plurality of discharge cells arranged in a matrix form, and one discharge cell forms one pixel of the screen.

상기 PDP의 구조를 개략적으로 살펴보면, 상판과 하판이 서로 합착되어 구성되는데, 상판은 서로 평행하게 형성된 스캔전극과 서스테인 전극, 그리고 스캔전극과 서스테인 전극을 포함한 상판상에 형성된 유전층 및 보호막을 구비한다. 그리고, 하판은 어드레스 전극과, 어드레스 전극을 포함한 기판 전면에 형성된 유전체막, 어드레스 전극 사이의 유전체막 위에 형성된 격벽, 그리고 각 방전셀내의 격벽 및 유전체막 표면에 형광체를 구비한다. 또한 상판과 하판 사이의 공간은 헬륨(He), 크세논(Xe)등의 불활성 가스가 혼합된 방전가스가 채워져 방전영역을 이루고 있다.When the structure of the PDP is schematically described, the upper plate and the lower plate are bonded to each other. The upper plate includes a scan electrode and a sustain electrode formed in parallel with each other, and a dielectric layer and a protective layer formed on the upper plate including the scan electrode and the sustain electrode. The lower plate is provided with an address electrode, a dielectric film formed on the entire surface of the substrate including the address electrode, a partition formed on the dielectric film between the address electrodes, and phosphors on the partition walls and the dielectric film surfaces in each discharge cell. In addition, the space between the upper plate and the lower plate is filled with a discharge gas mixed with an inert gas such as helium (He) and xenon (Xe) to form a discharge region.

이와 같은 피디피는 상기 전극들에 소정 전압이 인가됨에 따라 상기 방전가스가 방전하고, 이때 발생된 자외선에 의해 형광체가 여기되어 색상을 구현하게 된다. 따라서, 상기 전극에 기 설정된 타이밍에 따라 소정 전압이 인가되도록 피디피 모듈의 구동을 제어하기 위한 모듈 구동부를 구비한다.The PD is discharged as a predetermined voltage is applied to the electrodes, and the phosphor is excited by the generated ultraviolet rays, thereby realizing color. Therefore, a module driving unit for controlling the driving of the PD module so that a predetermined voltage is applied to the electrode according to a preset timing.

또한, PDP 전원부에는 회로의 역률을 개선하기 위한 PFC(Power Factor Correction) 블록이 존재하는데, AC 전압이 인가되면 브릿지 정류 회로를 거쳐 DC에 가까운 전압이 PFC 블록에 전달된다.In addition, a power factor correction (PFC) block exists to improve the power factor of the circuit in the PDP power supply unit. When an AC voltage is applied, a voltage close to DC is transferred to the PFC block through a bridge rectifier circuit.

이하, 첨부된 도면을 참조하여 종래 기술에 따른 전원 제어장치를 보다 상세히 설명하면 다음과 같다.Hereinafter, a power control apparatus according to the prior art will be described in detail with reference to the accompanying drawings.

도 1은 종래 기술에 따른 전원 제어장치를 나타낸 블록도이다.1 is a block diagram showing a power control device according to the prior art.

종래 기술에 따른 전원 제어장치는 도 1에 도시된 바와 같이, AC 전원을 입력하기 위한 AC 전원입력부(10)와, 상기 AC 전원입력부(10)를 통해 전원이 입력되면 5V 스탠바이 전원을 출력하는 스탠바이 전원부(20)와, 제어신호를 출력하는 마이컴(80)과, 상기 마이컴(80)의 제어신호에 따라 온/오프 되는 제 1 내지 제 3 릴레이(31)(32)(33)와, 상기 제 2 릴레이(32)가 온/오프 되는지 여부에 따라 역률을 개선하기 위한 PFC(40)와, 상기 PFC(40)를 통해 역률이 개선된 전압을 입력받아 각 부에 필요한 다양한 전압을 생성하여 출력하는 멀티전압 발생부(50)와, 상기 제 3 릴레이(33)의 온/오프에 따라 상기 PFC(40)를 통해 역률이 개선된 전압을 입력받아 각각 Vs 전압 및 Va 전원을 출력하는 Vs 전원부(60) 및 Va 전원부(70)로 구성된다.As shown in FIG. 1, the power control apparatus according to the related art has an AC power input unit 10 for inputting AC power, and a standby power outputting 5V standby power when power is input through the AC power input unit 10. A power supply unit 20, a microcomputer 80 for outputting a control signal, first to third relays 31, 32, 33, on / off according to the control signal of the microcomputer 80, and the first 2 PFC 40 for improving the power factor according to whether the relay 32 is on / off, and receives the voltage with improved power factor through the PFC 40 to generate and output various voltages required for each part Vs power supply unit 60 for receiving a voltage with improved power factor through the PFC 40 in response to the multi-voltage generator 50 and the third relay 33 on / off, respectively, and outputs a Vs voltage and Va power, respectively. ) And Va power supply unit 70.

이와 같이 구성된 종래 기술에 따른 전원 제어장치의 동작을 설명하면 다음과 같다.Referring to the operation of the power control apparatus according to the prior art configured as described above is as follows.

사용자에 의해 파워 온 명령이 입력되면 상기 마이컴(80)은 상기 제 1 내지 제 3 릴레이(31)(32)(33)를 온 시켜서 상기 전원입력부(10)를 통해 전원을 공급받아 상기 PFC(40)로 전원이 공급되고, 상기 멀티전압 발생부(50)는 Vcc 전원, 오디오 전원 및 기타 필요한 전압을 발생한다.When the power-on command is input by the user, the microcomputer 80 turns on the first to third relays 31, 32, and 33 to receive power through the power input unit 10 to receive the PFC 40. Power is supplied, and the multi-voltage generator 50 generates Vcc power, audio power, and other necessary voltages.

또한, 상기 제 3 릴레이(33)가 온 됨에 따라 상기 Vs 전원부(60)는 서스테인 전압(Vs)을 공급하고, 상기 Va 전원부(70)는 어드레스 전압(Va)을 모듈로 공급한다.In addition, as the third relay 33 is turned on, the Vs power supply unit 60 supplies a sustain voltage Vs, and the Va power supply unit 70 supplies an address voltage Va to the module.

그러나 사용자에 의해 순간적으로 파워 온/오프 명령이 입력될 경우, 상기 마이컴(80)은 계속 5V 전원을 공급받고 있어 상기 제 3 릴레이(33)가 온 됨으로써 상기 Vs 전원부(60) 및 Va 전원부(70)를 통해 서스테인 전압(Vs) 및 어드레스 전압(Va)이 출력됨으로써 상기 서스테인 전압(Vs) 및 어드레스 전압(Va)이 완전히 방전되지 않은 상태에서 출력이 이루어지게 된다.However, when a power on / off command is instantaneously input by the user, the microcomputer 80 is continuously supplied with 5V power, and the third relay 33 is turned on, thereby the Vs power supply unit 60 and the Va power supply unit 70. By outputting the sustain voltage Vs and the address voltage Va through the output, the sustain voltage Vs and the address voltage Va are completely discharged.

그러므로, 모듈(도시생략) 내부에서 구동하는 시퀀스대로 동작하지 않게 됨으로써 모듈의 오방전 및 기타 기능상에 이상이 발생되는 문제점이 있었다.Therefore, there is a problem in that an abnormality occurs in the discharge and other functions of the module by not operating in the sequence driven inside the module (not shown).

따라서 본 발명은 이와 같은 문제점을 해결하기 위해 안출한 것으로, 모듈전원을 항상 공급하는 것이 아니고 모듈 전원을 별도로 관리할 수 있도록 하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, and the object of the present invention is not to always supply module power, but to manage module power separately.

또한, 본 발명은 모듈의 오방전 및 신뢰성을 확보할 수 있도록 하는데 다른 목적이 있다.In addition, the present invention has another object to ensure the mis-discharge and reliability of the module.

이와 같은 목적을 달성하기 위한 본 발명에 따른 전원제어장치는 상기 PFC에서 출력되는 정전압을 입력받아 서스테인 전압을 발생하는 서스테인 전원부와, 상 기 PFC에서 출력되는 정전압을 입력받아 어드레스 전압을 발생하는 어드레스 전원부 및 PDP 모듈을 구비한 영상표시기기에서, 사용자의 요구에 따른 제어신호를 출력하기 위한 주제어부와, AC 전원을 공급하는 전원 입력부와, 상기 전원 입력부를 통해 입력되는 AC 전압을 입력받아 기 설정된 정전압을 발생시키는 PFC와, 상기 PFC에서 출력되는 정전압을 입력받아 각 부하에 필요한 다양한 전압을 발생하는 멀티전압 발생부와, 상기 주제어부의 제어신호에 따라 상기 멀티전압 발생부에서 발생된 Vcc 전압을 선택적으로 상기 PDP 모듈에 공급하기 위한 스위칭부를 포함하여 구성되는데 그 특징이 있다.The power supply control apparatus according to the present invention for achieving the above object is a sustain power supply for generating a sustain voltage by receiving the constant voltage output from the PFC, and an address power supply for generating an address voltage by receiving the constant voltage output from the PFC And a main control unit for outputting a control signal according to a user's request, a power input unit for supplying AC power, and an AC voltage input through the power input unit. A multi-voltage generator for generating various voltages required for each load by receiving a constant voltage outputted from the PFC, a PFC for generating a PFC, and a Vcc voltage generated at the multi-voltage generator in accordance with a control signal of the main controller. It is configured to include a switching unit for supplying the PDP module has its features.

바람직하게 상기 PDP 모듈은 상기 스위칭부가 온 상태가 되면 상기 서스테인 전원부에 온 신호가 출력되도록 제어하는데 그 특징이 있다.Preferably, the PDP module is characterized in that when the switching unit is in the on state, the ON signal is output to the sustain power supply unit.

더 바람직하게 상기 PDP 모듈은 상기 스위칭부가 온 상태인 경우에만 5V Vcc 전원을 공급받는데 그 특징이 있다.More preferably, the PDP module is supplied with a 5V Vcc power only when the switching unit is on.

이하, 첨부된 도면을 참조하여 본 발명에 따른 전원제어장치를 보다 상세히 설명하면 다음과 같다.Hereinafter, a power control apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 전원제어장치를 나타낸 블록도이다.2 is a block diagram showing a power supply control apparatus according to the present invention.

본 발명에 따른 전원제어장치는 도 2에 도시된 바와 같이, 사용자의 요구에 따라 제어신호를 출력하는 주 제어부(800)와, 상기 주 제어부(800)의 제어신호에 따라 AC 전원을 입력받기 위한 AC 전원입력부(100)와, 상기 AC 전원입력부(100)를 통해 전원이 입력되면 5V 스탠바이 전원을 출력하는 스탠바이 전원부(200)와, 상기 전원입력부(100)를 통해 AC 전원이 공급되면 구동되는 PDP 모듈(도시생략)과, 상기 PDP 모듈(도시생략)에서 출력되는 신호에 따라 온/오프 되는 제 1 내지 제 3 릴레이(310)(320)(330)와, 상기 제 2 릴레이(320)가 온/오프 되는지 여부에 따라 역률을 개선하기 위한 PFC(400)와, 상기 PFC(400)를 통해 역률이 개선된 전압을 입력받아 각 부에 필요한 다양한 전압을 생성하여 출력하는 멀티전압 발생부(500)와, 상기 제 3 릴레이(330)의 온/오프에 따라 상기 PFC(400)를 통해 역률이 개선된 전압을 입력받아 각각 Vs 전압 및 Va 전원을 출력하는 Vs 전원부(600) 및 Va 전원부(700)와, 상기 주 제어부(800)의 제어신호에 따라 온/오프 되는 스위칭부(900)를 포함하여 구성된다.As shown in FIG. 2, the power control apparatus according to the present invention includes a main control unit 800 that outputs a control signal according to a user's request, and an AC power input unit according to a control signal of the main control unit 800. An AC power input unit 100, a standby power unit 200 that outputs 5V standby power when power is input through the AC power input unit 100, and a PDP driven when AC power is supplied through the power input unit 100. Modules (not shown), first to third relays 310, 320 and 330 turned on / off according to signals output from the PDP module (not shown), and the second relay 320 is turned on. PFC 400 for improving the power factor according to whether it is on / off, and multi-voltage generator 500 for receiving a voltage with improved power factor through the PFC 400 to generate and output various voltages required for each unit And the PFC 400 according to the on / off of the third relay 330. Vs power supply unit 600 and Va power supply unit 700 for receiving a voltage with improved power factor and outputting Vs voltage and Va power, respectively, and a switching unit 900 that is turned on / off according to the control signal of the main controller 800. It is configured to include).

이와 같이 구성된 본 발명에 따른 전원제어장치의 동작을 설명하면 다음과 같다.Referring to the operation of the power control device according to the invention configured as described above are as follows.

먼저, 사용자가 리모컨(도시생략) 또는 로컬키(도시생략)등을 이용하여 파워온 명령을 입력하면 상기 주제어부(800)는 사용자가 입력한 명령에 따라 제어신호를 출력하며, 상기 주제어부(800)를 통해 릴레이 온 명령이 출력되면 상기 제 1 릴레이(320)가 온 상태가 되어 상기 전원입력부(100)를 통해 입력되는 AC 전원이 상기 PFC(400)에 공급된다.First, when a user inputs a power-on command by using a remote controller (not shown) or a local key (not shown), the main control unit 800 outputs a control signal according to a command input by the user. When the relay on command is output through the 800, the first relay 320 is turned on, and AC power input through the power input unit 100 is supplied to the PFC 400.

그러면, 상기 PFC(400)는 기 설정된 정전압 형태로 상기 멀티전압 발생부(500)에 공급되며, 상기 멀티전압 발생부(500)는 각부에서 필요한 다양한 전압을 생성하여 출력한다. 이때, 출력되는 전압으로는 Vcc 전압과, 오디오 전압 및 기타 저전압등이 있을 수 있다.Then, the PFC 400 is supplied to the multi voltage generator 500 in the form of a predetermined constant voltage, and the multi voltage generator 500 generates and outputs various voltages required by each unit. In this case, the output voltage may include a Vcc voltage, an audio voltage, and other low voltages.

또한, 상기 주 제어부(800)는 사용자에 의해 파워 온 명령이 입력되면, 상기 멀티전압 발생부(500)에서 출력되는 정전압에 의한 서스테인 전원(Vs) 및 어드레스 전원(Va)이 PDP 모듈(도시생략)에 선택적으로 공급되도록 상기 스위칭부(900)에 제어신호를 출력한다.In addition, when the power-on command is input by the user, the main controller 800 receives the PDP module (not shown) for the sustain power supply Vs and the address power supply Va by the constant voltage output from the multi-voltage generator 500. Outputs a control signal to the switching unit 900 to be selectively supplied.

즉, 상기 스위칭부(900)는 상기 주 제어부(800)로부터 하이(high) 신호가 입력될 경우에만 온 상태가 되어 상기 멀티전압 발생부(500)에서 출력되는 Vcc 전압을 입력받아 Vs 온 신호를 상기 제 3 릴레이(330)에 출력함으로써 상기 Vs 전원부(600) 및 Va 전원부(700)가 구동되어 상기 PDP 모듈(도시생략)에 서스테인 전압(Vs) 및 어드레스 전압(Va)이 공급된다.That is, the switching unit 900 is turned on only when a high signal is input from the main control unit 800, and receives the Vcc voltage output from the multi-voltage generator 500 to receive the Vs on signal. By outputting to the third relay 330, the Vs power supply unit 600 and the Va power supply unit 700 are driven to supply a sustain voltage Vs and an address voltage Va to the PDP module (not shown).

따라서, 상기 주제어부(800)는 상기 스위칭부(900)를 온 시켜야지만 Vcc 전원을 입력받아 Vs 온 명령이 출력됨으로써, 상기 Vs 및 Va의 출력이 완전히 방전된 상태에서 Vcc 전원을 공급받게 된다.Therefore, the main controller 800 must turn on the switching unit 900, but receives the Vcc power and outputs the Vs on command, thereby receiving the Vcc power while the outputs of the Vs and Va are completely discharged.

이와 같이 구성된 본 발명에 따른 전원제어장치는 다음과 같은 효과가 있다.The power control device according to the present invention configured as described above has the following effects.

첫째, PDP 모듈에 공급되는 전원을 별도로 제어함으로써 오방전을 미연에 방지할 수 있다.First, by controlling the power supplied to the PDP module separately, it is possible to prevent the mis-discharge in advance.

둘째, 오방전을 미연에 방지함으로써 신뢰성을 확보할 수 있다.Second, reliability can be secured by preventing mis-discharge.

셋째, PDP 모듈 내부의 시퀀스를 안정시킴에 따라 에러 발생을 최소화 시킬 수 있다.Third, as the sequence inside the PDP module is stabilized, error occurrence can be minimized.

Claims (3)

상기 PFC에서 출력되는 정전압을 입력받아 서스테인 전압을 발생하는 서스테인 전원부와, 상기 PFC에서 출력되는 정전압을 입력받아 어드레스 전압을 발생하는 어드레스 전원부 및 PDP 모듈을 구비한 영상표시기기에서,In an image display device having a sustain power supply unit for receiving a constant voltage output from the PFC to generate a sustain voltage, an address power supply unit for receiving the constant voltage output from the PFC and generating an address voltage, 사용자의 요구에 따른 제어신호를 출력하기 위한 주제어부;A main controller for outputting a control signal according to a user's request; AC 전원을 공급하는 전원 입력부;A power input unit for supplying AC power; 상기 전원 입력부를 통해 입력되는 AC 전압을 입력받아 기 설정된 정전압을 발생시키는 PFC;A PFC configured to receive an AC voltage input through the power input unit and generate a predetermined constant voltage; 상기 PFC에서 출력되는 정전압을 입력받아 각 부하에 필요한 다양한 전압을 발생하는 멀티전압 발생부; 그리고,A multi-voltage generator which receives the constant voltage output from the PFC and generates various voltages required for each load; And, 상기 주제어부의 제어신호에 따라 상기 멀티전압 발생부에서 발생된 Vcc 전압을 선택적으로 상기 PDP 모듈에 공급하기 위한 스위칭부를 포함하여 구성됨을 특징으로 하는 전원 제어장치.And a switching unit for selectively supplying the Vcc voltage generated by the multi-voltage generator to the PDP module according to the control signal of the main controller. 제 1 항에 있어서,The method of claim 1, 상기 PDP 모듈은 상기 스위칭부가 온 상태가 되면 상기 서스테인 전원부에 온 신호가 출력되도록 제어함을 특징으로 하는 전원 제어장치.And the PDP module controls the ON signal to be output to the sustain power supply unit when the switching unit is turned on. 제 1 항에 있어서,The method of claim 1, 상기 PDP 모듈은 상기 스위칭부가 온 상태인 경우에만 5V Vcc 전원을 공급받음을 특징으로 하는 전원 제어장치.And the PDP module is supplied with 5V Vcc power only when the switching unit is on.
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Cited By (3)

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KR100950919B1 (en) * 2008-10-13 2010-04-01 삼성전기주식회사 Switching mode power supply circuit for plasma display panel
KR101533463B1 (en) * 2009-03-09 2015-07-03 엘지이노텍 주식회사 Power supplying circuit
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KR100950919B1 (en) * 2008-10-13 2010-04-01 삼성전기주식회사 Switching mode power supply circuit for plasma display panel
KR101533463B1 (en) * 2009-03-09 2015-07-03 엘지이노텍 주식회사 Power supplying circuit
CN108170021A (en) * 2018-02-12 2018-06-15 宗仁科技(平潭)有限公司 A kind of electronic watch driving circuit and electronic watch
CN108170021B (en) * 2018-02-12 2023-05-23 宗仁科技(平潭)有限公司 Electronic watch driving circuit and electronic watch

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