KR100504515B1 - Apparatus and method for controlling transformer of pdp module - Google Patents
Apparatus and method for controlling transformer of pdp module Download PDFInfo
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- KR100504515B1 KR100504515B1 KR1020040006093A KR20040006093A KR100504515B1 KR 100504515 B1 KR100504515 B1 KR 100504515B1 KR 1020040006093 A KR1020040006093 A KR 1020040006093A KR 20040006093 A KR20040006093 A KR 20040006093A KR 100504515 B1 KR100504515 B1 KR 100504515B1
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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
- G09G3/296—Driving circuits for producing the waveforms applied to the driving electrodes
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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
- G09G3/294—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
- G09G3/2946—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 by introducing variations of the frequency of sustain pulses within a frame or non-proportional variations of the number of sustain pulses in each subfield
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0202—Addressing of scan or signal lines
- G09G2310/0216—Interleaved control phases for different scan lines in the same sub-field, e.g. initialization, addressing and sustaining in plasma displays that are not simultaneous for all scan lines
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
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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
- 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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- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Gas Discharge Display Tubes (AREA)
Abstract
컨트롤 IC 및 트랜스포머의 동작 신뢰성 저하를 방지할 수 있도록 한 피디피 모듈의 트랜스포머 제어장치 및 방법에 관한 것으로, 다양한 레벨의 구동전원을 생성하여 피디피 모듈에 공급하는 트랜스포머, 제어신호에 따라 트랜스포머의 피드백 전류에 따른 주파수 조정동작을 수행하는 컨트롤 IC, 그리고 입력 영상신호의 밝기에 따라 피디피 모듈의 서스테인 수를 결정하며, 서스테인 수에 따라 컨트롤 IC의 주파수 조정동작을 온/오프 시키기 위한 제어신호를 출력하는 마이컴을 포함하므로 컨트롤 IC 및 트랜스포머의 신뢰성을 저하시키는 문제를 완벽하게 해결할 수 있다.The present invention relates to a transformer control device and method for a PD module that prevents a deterioration in operational reliability of a control IC and a transformer.The present invention relates to a transformer that generates various levels of driving power and supplies the PD module to a feedback current of a transformer according to a control signal. The control IC performs the frequency adjustment operation according to the control, and the number of sustains of the PD module according to the brightness of the input video signal, and the microcomputer outputs the control signal for turning on / off the frequency adjustment operation of the control IC according to the number of sustains. The solution completely eliminates the problem of degrading the reliability of control ICs and transformers.
Description
본 발명은 피디피 모듈에 관한 것으로서, 특히 피디피 모듈의 트랜스포머 제어장치 및 방법에 관한 것이다.The present invention relates to a PD module, and more particularly, to a transformer control apparatus and method of a PD module.
종래의 피디피 모듈의 각 구성에 전원을 공급하는 전원부 특히, 트랜스포머 는 고전압/고전류로 동작하는 구성으로, 발열이 가장 큰 문제이다.The power supply unit for supplying power to each component of the conventional PD module, in particular the transformer is a configuration that operates at a high voltage / high current, heat generation is the biggest problem.
종래의 피디피 모듈의 전원부 관련 구성은 도 1과 같이, 다양한 레벨의 구동전원을 생성하여 피디피 모듈(10)에 공급하는 트랜스포머(12), 출력전류를 피드백받고 그에 따라 상기 트랜스포머(12)의 동작 주파수를 조정하는 컨트롤 IC(11)를 포함한다.In the related art configuration of the power supply unit of the PD module, as shown in FIG. 1, a transformer 12 generating drive power of various levels and supplying the PD module 10 to the PD module 10 is fed back with an output current and accordingly an operating frequency of the transformer 12. It includes a control IC (11) for adjusting the.
상술한 바와 같이, 컨트롤 IC(11)는 전류 피드백에 따라 주파수를 제어하는 방식 즉, 피드백된 전류가 증가하면 그에 해당하는 만큼 동작주파수를 낮추는 방식으로 트랜스포머(12)의 발열을 감소시키는 동작을 수행한다.As described above, the control IC 11 performs a method of controlling the frequency according to the current feedback, that is, reducing the heat generation of the transformer 12 by decreasing the operating frequency by a corresponding amount when the feedback current increases. do.
이때 트랜스포머(12) 피드백 전류의 변동이 심할 경우, 동작 주파수의 가변 빈도 및 가변 폭이 커져 컨트롤 IC 및 트랜스포머의 신뢰성을 저하시키는 문제점이 있다.In this case, when the variation of the feedback current of the transformer 12 is severe, there is a problem in that the variable frequency and the variable width of the operating frequency are increased, thereby reducing the reliability of the control IC and the transformer.
따라서 본 발명은 상기한 종래의 문제점을 해결하기 위하여 안출한 것으로서, 기설정된 조건에 한해서만 피드백 전류에 따른 주파수 제어동작이 이루어지도록 하여 컨트롤 IC 및 트랜스포머의 동작 신뢰성 저하를 방지할 수 있도록 한 피디피 모듈의 트랜스포머 제어장치 및 방법을 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above-described conventional problems, and the frequency control operation according to the feedback current is made only under a predetermined condition, so that the operation reliability of the control IC and transformer can be prevented. It is an object of the present invention to provide a transformer control apparatus and method.
본 발명에 따른 피디피 모듈의 트랜스포머 제어장치는 다양한 레벨의 구동전원을 생성하여 피디피 모듈에 공급하는 트랜스포머, 제어신호에 따라 트랜스포머의 피드백 전류에 따른 주파수 조정동작을 수행하는 컨트롤 IC, 그리고 입력 영상신호의 밝기에 따라 피디피 모듈의 서스테인 수를 결정하며, 서스테인 수에 따라 컨트롤 IC의 주파수 조정동작을 온/오프 시키기 위한 제어신호를 출력하는 마이컴을 포함함을 특징으로 한다.The transformer control apparatus of a PD module according to the present invention generates a power supply of various levels and supplies the PD module to a PD module, a control IC for performing a frequency adjusting operation according to a feedback current of a transformer according to a control signal, and an input image signal. The number of sustain of the PD module is determined according to the brightness, and the microcomputer outputs a control signal for turning on / off the frequency adjustment operation of the control IC according to the number of sustain.
본 발명에 따른 피디피 모듈의 트랜스포머 제어방법은 트랜스포머, 상기 트랜스포머의 피드백 전류에 따라 트랜스포머의 동작 주파수를 제어하는 컨트롤 IC, 피디피 모듈의 서스테인 수를 결정하는 마이컴을 구비한 피디피 모듈의 트랜스포머 제어방법에 있어서, 마이컴이 서스테인 수가 설정값 미만인지 판단하는 단계, 마이컴이 그 판단결과에 따라 컨트롤 IC의 동작 주파수 제어동작을 '온'시키기 위한 제어신호를 출력하는 단계, 컨트롤 IC가 마이컴의 제어신호에 따라 트랜스포머의 동작 주파수를 조정하는 단계를 포함함을 특징으로 한다.In a transformer control method of a PD module according to the present invention, a transformer, a control IC controlling an operating frequency of a transformer according to a feedback current of the transformer, and a transformer control method of a PD module having a microcomputer for determining the sustain number of the PD module The microcomputer determines whether the sustain number is less than the set value, the microcomputer outputs a control signal for turning on the operating frequency control operation of the control IC according to the determination result, and the control IC performs a transformer according to the microcomputer control signal. Adjusting the operating frequency of the characterized in that it comprises.
이하, 첨부된 도면을 참조하여 본 발명에 따른 피디피 모듈의 트랜스포머 제어장치 및 방법의 바람직한 일실시예를 상세히 설명하면 다음과 같다.Hereinafter, a preferred embodiment of a transformer control apparatus and method of a PD module according to the present invention will be described in detail with reference to the accompanying drawings.
도 2는 APL 특성곡선을 나타낸 그래프, 도 3은 본 발명에 따른 피디피 모듈의 트랜스포머 제어장치의 구성을 나타낸 블록도이고, 도 4는 본 발명에 따른 피디피 모듈의 트랜스포머 제어방법을 나타낸 흐름도이다.Figure 2 is a graph showing the APL characteristic curve, Figure 3 is a block diagram showing the configuration of the transformer control device of the PD module according to the present invention, Figure 4 is a flow chart showing a transformer control method of the PD module according to the present invention.
본 발명의 구성설명에 앞서, 본 발명의 동작원리 이해를 돕기 위하여 피디피 모듈의 APL 특성에 대하여 설명하기로 한다.Prior to the description of the configuration of the present invention, in order to help understand the operation principle of the present invention will be described with respect to the APL characteristics of the PD module.
피디피 모듈은 그 소비전력을 일정하게 유지함으로서 피디피 모듈의 손상을 방지하기 위하여 화면의 평균 밝기값 즉, APL(Average Picture Level)에 따라서 서스테인의 수(구동되는 서스테인 전극의 수)를 조정하였으며, 상기 APL과 서스테인 수의 관계가 도 2의 그래프에 도시되어 있다. 즉, 도 2와 같이, APL과 서스테인의 개수는 반비례 관계임을 알 수 있으며, 결국, APL 즉, 화면의 밝기를 서스테인의 수로 판단할 수 있는 것이다.The PD module adjusts the number of sustains (number of sustain electrodes driven) according to the average brightness value of the screen, that is, APL (Average Picture Level), in order to prevent damage to the PD module by keeping its power consumption constant. The relationship between APL and sustain number is shown in the graph of FIG. That is, as shown in Figure 2, it can be seen that the number of APL and the sustain is inversely related, after all, the APL, that is, the brightness of the screen can be determined as the number of sustain.
본 발명에 따른 피디피 모듈의 트랜스포머 제어장치는 도 3에 도시된 바와 같이, 다양한 레벨의 구동전원을 생성하여 피디피 모듈(30)에 공급하는 트랜스포머(33), 제어신호에 따라 상기 트랜스포머(33)의 피드백 전류에 따른 주파수 조정동작을 수행하는 컨트롤 IC(32), 그리고 입력 영상신호의 밝기에 따라 피디피 모듈(30)의 서스테인 수를 결정하며, 상기 서스테인 수에 따라 상기 컨트롤 IC(32)의 주파수 조정동작을 온/오프 시키기 위한 제어신호를 출력하는 마이컴(31)을 포함하여 구성된다.As shown in FIG. 3, the transformer control apparatus of the PD module according to the present invention generates a driving power of various levels and supplies the transformer 33 to the PD module 30 according to a control signal of the transformer 33. The control IC 32 performs a frequency adjustment operation according to the feedback current, and determines the number of sustains of the PD module 30 according to the brightness of the input video signal, and adjusts the frequency of the control IC 32 according to the number of sustains. And a microcomputer 31 for outputting a control signal for turning on / off an operation.
이와 같이 구성된 본 발명에 따른 피디피 모듈의 트랜스포머 제어방법을 도 4를 참조하여 설명하면 다음과 같다.The transformer control method of the PD module according to the present invention configured as described above will be described with reference to FIG. 4.
먼저, 마이컴(31)은 영상신호의 밝기 즉, APL 정보에 따라 서스테인 수를 카운팅하고(S41), 카운팅된 서스테인 수(S)가 설정값(N0) 미만인지 판단한다(S42).First, the microcomputer 31 counts the number of sustains according to the brightness of the video signal, that is, the APL information (S41), and determines whether the counted sustain number S is less than the set value N0 (S42).
여기서, 설정값(N0)은 도 2에 도시된 바와 같이, 현재 영상의 APL 값이 'C'구간 이상과 'C'구간 이하('A' 및 'B' 구간) 중 어디에 속하는지 판단할 수 있는 기준이 되는 서스테인 수이다.Here, as shown in FIG. 2, the set value N0 may determine whether the APL value of the current image belongs to more than the 'C' section and less than the 'C' section (the 'A' and 'B' sections). It is the number of sustained references.
이때 APL 값이 'C'구간 이하일 경우 트랜스포머(33)의 발열 수준이 미약하여 트랜스포머(33)의 동작 주파수를 피드백 전류에 따라 조정하지 않아도 신뢰성 저하문제가 발생하지 않지만, APL 값이 'C'구간 이상일 경우 트랜스포머(33)의 발열 수준이 높아 즉, 과열의 위험이 있어 트랜스포머(33)의 동작 주파수를 피드백 전류에 따라 조정하여 발열을 보상해야 하는 경우이다.At this time, if the APL value is less than the 'C' section, the heat generation level of the transformer 33 is weak, and thus the reliability deterioration problem does not occur even if the operating frequency of the transformer 33 is not adjusted according to the feedback current, but the APL value is the 'C' section. In the case of abnormality, the heat generation level of the transformer 33 is high, that is, there is a risk of overheating, and thus, the heat generation should be compensated by adjusting the operating frequency of the transformer 33 according to the feedback current.
따라서 마이컴(31)은 상기 판단결과(S42), 카운팅된 서스테인 수(S)가 설정값(N0) 미만이면, 컨트롤 IC(32)가 트랜스포머(33) 동작 주파수 조정동작을 수행하도록 제어신호('H')를 출력한다(S43).Therefore, when the determination result S42 and the counted sustain number S are less than the set value N0, the microcomputer 31 causes the control IC 32 to perform the control frequency adjustment operation of the transformer 33 operating frequency. H ') is output (S43).
이어서 컨트롤 IC(32)가 상기 트랜스포머(33)의 출력전류를 피드백받아 그에 맞도록 동작 주파수를 조정한다(S44).Subsequently, the control IC 32 receives the output current of the transformer 33 and adjusts an operating frequency to match the output current (S44).
한편, 상기 판단결과(S42), 카운팅된 서스테인 수(S)가 설정값(N0) 이상이면, 컨트롤 IC(32)가 트랜스포머(33) 동작 주파수 조정동작을 수행하지 않도록 제어신호('L')를 출력한다(S45).On the other hand, when the determination result (S42), if the counted sustain number (S) is equal to or larger than the set value (N0), the control signal (L) so that the control IC 32 does not perform the transformer 33 operating frequency adjustment operation. Outputs (S45).
이어서 컨트롤 IC(32)가 상기 트랜스포머(33)는 트랜스포머(33) 동작 주파수를 현 상태로 유지시킨다(S46).Subsequently, the control IC 32 maintains the current operating frequency of the transformer 33 in the transformer 33 (S46).
본 발명에 따른 피디피 모듈의 트랜스포머 제어장치 및 방법은 서스테인 수를 기준으로 트랜스포머의 과열 발생이 우려되는 경우에만, 컨트롤 IC의 트랜스포머 동작 주파수 제어동작이 이루어지도록 하므로, 피드백 전류의 변동이 심할 경우 동작 주파수의 가변 빈도 및 가변 폭이 커져 컨트롤 IC 및 트랜스포머의 신뢰성을 저하시키는 문제를 완벽하게 해결할 수 있다.The transformer control apparatus and method of the PDP module according to the present invention allow the transformer operating frequency control operation of the control IC to be performed only when the overheating of the transformer is concerned based on the number of sustains, so that the operating frequency when the feedback current fluctuates severely. The variable frequency and variable width of the circuitry can solve the problem of lowering the reliability of control ICs and transformers.
도 1은 종래의 피디피 모듈의 전원관련 구성을 개략적으로 나타낸 블록도1 is a block diagram schematically showing a power related configuration of a conventional PD module
도 2는 APL 특성곡선을 나타낸 그래프2 is a graph showing the APL characteristic curve
도 3은 본 발명에 따른 피디피 모듈의 트랜스포머 제어장치의 구성을 나타낸 블록도Figure 3 is a block diagram showing the configuration of the transformer control device of the PD module according to the present invention
도 4는 본 발명에 따른 피디피 모듈의 트랜스포머 제어방법을 나타낸 흐름도4 is a flowchart illustrating a transformer control method of a PD module according to the present invention.
- 도면의 주요부분에 대한 부호의 설명 --Explanation of symbols for the main parts of the drawings-
30: 피디피 모듈 31: 마이컴30: PD module 31: microcomputer
32: 컨트롤 IC 33: 트랜스포머32: control IC 33: transformer
Claims (4)
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| KR1020040006093A KR100504515B1 (en) | 2004-01-30 | 2004-01-30 | Apparatus and method for controlling transformer of pdp module |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020040006093A KR100504515B1 (en) | 2004-01-30 | 2004-01-30 | Apparatus and method for controlling transformer of pdp module |
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| KR100504515B1 true KR100504515B1 (en) | 2005-08-01 |
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