CN1226869C - Power supply controller for plasma television - Google Patents
Power supply controller for plasma television Download PDFInfo
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- CN1226869C CN1226869C CN 02144744 CN02144744A CN1226869C CN 1226869 C CN1226869 C CN 1226869C CN 02144744 CN02144744 CN 02144744 CN 02144744 A CN02144744 A CN 02144744A CN 1226869 C CN1226869 C CN 1226869C
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- power
- delivery device
- power supply
- electrode
- power delivery
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Abstract
The present invention discloses a power supply controller for a plasma television, which is an exchanger for controlling the input and the disconnection of a general AC power supply. A power controller complements the power of the AC power supply input by the exchanger. A microprocessor controls the exchanger for supplying a power supply for the power controller. A first power supply transmitting device and a second power supply transmitting device transmit operating voltage to a PDP module after output voltage is received from the power controller. A third power supply and a fourth power supply transmit the operating voltage to the given electrode of the PDP module after the output voltage is received from the first power supply. The maintenance electrode of the PDP module is allocated with a transmitting electric current, and the changing amplitude of electric current quantity transmitted to a maintenance electrode is reduced. Further, the flicker of a picture is prevented in advance.
Description
Technical field
The present invention relates to a kind of power control, especially a kind of PDP TV power control device.
Background technology
TV is the signal with TV station's conveying, by the channel selection demodulation video-audio signal that the user selects, is separated into video-audio signal and relevant video-audio signal is handled the audio and video equipment of back by picture, the broadcast of raising one's voice.
In this TV, be in order to pursue high definition/large-screen as CRT of extensive use etc., and adopted LCD, the TV of PDP.
Especially, adopt the TV of PDP, compare with original C RT on its structure, have ultra-thin property, compare with LCD, thereby have the technology important document that stronger bendability satisfies TV, and the characteristic that can be arranged on the wall is arranged,, sell well as novel TV.
But, during the starting of PDP TV, need high voltage, so the control of relevant power supply architecture becomes a technology important document of PDP TV universalness.
The general structure of PDP is so: PDP is lumped together by upper plate and lower plate and forms.Upper plate is by the scan electrode of mutual balance and keep electrode; And comprise scan electrode and keep the conductive layer that is positioned at upper plate of electrode and diaphragm is formed.
Lower plate is by address electrode; Comprise address electrode and form the electric conductor film of substrate front; On the electric conductor film between the address electrode, form dividing plate; The fluorophor that forms on the dividing plate of each discharge battery inside and the electric conductor film surface is formed.
Commingle discharging gas in upper plate and the lower plate interval plays the effect of discharge, mixes in the anti-electric body and contains inert gases such as He, xe.
Above-mentioned PDP be along with above-mentioned electrode reach decide voltage, above-mentioned discharge gas discharge, the ultraviolet radiation absorption fluorophor that takes place during by discharge manifests picture.So, for by the set stipulated time on the above-mentioned electrode, reach institute and decide voltage, need possess the module driver of controlling the PDP module drive.
In existing technology, the power control on the PDP TV as shown in Figure 1: before not developing from standby form and image, in order to reach the starting command requirement of user, to the standby power device 11 of associated components power supply by the remote controller input; Behind standby power device 11 startup power supplies, according to the microcomputer 12 of algorithmic language output control signal; After receiving the AC power commonly used of input, the power controller 15 of supplemental capacity; The relay 14 of approval electric current is carried in control to power controller 15; According to the control signal of microprocessor 12, the relay drive 13 that control relay 14 drives; After the output voltage transformation with power controller 15, drive the VS power delivery device 16 of keeping electrode; After the output voltage transformation with power controller 15, drive the VA power delivery device 17 of address electrode; After the output voltage transformation with power controller 15, carry the Vsetup power delivery device 18 of three voltages; After the output voltage transformation with power controller 15, the Vsc power delivery device 19 of driven sweep electrode; From VS power delivery device 16, VA power delivery device 17, Vsetup power delivery device 18, Vsc power delivery device 19 received currents and 20 groups of PDP modules that drives.
Existing P DP TV power supply control device is made up of above structure, controls start mode by the power supply of prior art operation:
At first, with power supply opening, microprocessor 12 is discerned the order of opening that receives by after receiving ultraviolet signal to the user with remote controller, and by the algorithmic language program of having set, starting respectively drives key element.
Then, by both definite sequences, it is in order to prevent from because of excess load each inscape to be caused the generation of reliability such as loss that starting respectively drives key element.
Because above-mentioned reason, microprocessor 12 is carried control signal to relay drive 13, drive relay 14, after relay 14 drives, carry power supply to power controller 15, power controller is carried power supply to VS power delivery device 16, VA power delivery device 17, Vsetup power delivery device 18, Vsc power delivery device 19.
So the user turns on the power switch, after relay drive 13 sends control signal, to VS power delivery device 16, VA power delivery device 17, Vsetup power delivery device 18, Vsc power delivery device 19 output control signals.
So VS power delivery device 16, VA power delivery device 17, Vsetup power delivery device 18, Vsc power delivery device 19 to corresponding electrode, drive the power delivery that obtains PDP module 20, thereby the picture of the selected channel of user occurs.
According to above explanation, PDP TV power control device by the prior art manufacturing is to obtain power supply from VS power delivery device, VA power delivery device, Vsetup power delivery device, Vsc power delivery device, when electric current passes through VS power delivery device, because type of drive, the excessive excessive velocities that changes of current amplitude, thus film flicker caused when driving PDP.
Summary of the invention
Technical problem to be solved by this invention is: a kind of PDP TV power supply control device is provided, and it can prevent the power control of the caused film flicker of load that the VS electric current is excessive.
In order to solve the problems of the technologies described above the power control that the present invention is achieved in that plasm TV, by the interchanger of input and cut-out AC power commonly used; By above-mentioned interchanger, replenish the power controller of AC power power; The microprocessor of the interchanger of AC power is carried in control to power controller; Receive the conveying voltage of above-mentioned power controller, the institute's fixed electrode on the PDP module is carried the 1st and the 2nd power delivery device of starting voltage; And comprise, receive the conveying voltage of the 1st power delivery device after, the institute fixed electrode on the PDP module carries the 3rd and the 4th power delivery device of starting voltage to form.
Advantageous effect of the present invention is: it can be kept electrode and carry power supply respectively on the PDP module, can reduce transferring to the electric current amplitude of variation of keeping electrode, prevents the flicker of picture.
Description of drawings
Fig. 1 is the power control block diagram of the plasm TV of prior art.
Fig. 2 is the power control block diagram of plasm TV of the present invention.
Embodiment
Fig. 2 is a PDP power control front view of the present invention.
The PDP power control is as shown in Figure 2 according to the present invention: the standby module is a picture when not showing, for can corresponding user starting command requirement by the remote controller input, to standby power device 101 that must the component parts power supply; Control the microprocessor 102 of all systems and out-put supply control signal; After receiving the AC power commonly used of input, the power controller 105 of supplemental capacity; Behind the conveying voltage of received power controller 105, keep the Vs power delivery device 106 that electrode is kept voltage to PDP module 110 feed drive; After the output voltage transformation with power controller 105,, provide the Vsc power delivery device 107 of scanning voltage Vsc for driving PDP module (110) address electrode; After receiving the power supply of Vs power delivery device 106 outputs, carry the Vsetup power delivery device 108 of three voltages to PDP module 110; After receiving the power supply of Vs power delivery device 106 outputs,, provide the Va power delivery device 109 of address voltage Va for driving the scan electrode of PDP module; The relay 104 that the conveying power supply of power controller 105 is controlled; According to the control signal of microprocessor 102, the relay drive 103 that control relay 104 drives is formed, and wherein Vs is the 1st power delivery device, and Va the 2nd power delivery device, Vsetup are the 3rd power delivery device, and Vsc is the 4th power delivery device.
The working procedure of PDP TV power supply control device of the present invention that above-mentioned formation is described is as follows:
At first, the user uses the remote controller opening power, after the power supply that microprocessor 102 receives by ultraviolet collection of letters means " leaves " command recognition, this order is transported to relay drive 103.Relay drive 103 is opened relay 104.So, AC power commonly used is provided for power controller 105.
Afterwards, after power controller 105 replenishes the power of AC power, carry power supply to Vs power delivery device 106, Va power delivery device 109.
And then, the power supply from 106 outputs of Vs power delivery device provides to Vsc power delivery device 107 and Vsetup power delivery device 108.
Out-put supply with Vs power delivery device 106 is offered PDP module 110 after Vsetup power delivery device 108 and 107 decomposition of Vsc power delivery device earlier exactly.
Change from 0A to 1.5A from the electric current of Vs power delivery device 106 outputs, its amplitude of variation is very big, above-mentioned Vsetup power delivery device 108 and Vsc power delivery device 107 then play abirritation, thereby can reduce and transfer to the electric current amplitude of variation of keeping electrode on the PDP module 110.
Claims (4)
1. the power control of a plasm TV is characterized in that the interchanger by input and cut-out AC power commonly used; Replenish power controller by the AC power power commonly used of above-mentioned interchanger input; For carrying power supply to controller, the microprocessor of control power supply unit running; Receive the conveying voltage of above-mentioned power controller, what the institute fixed electrode on the plasma display panel module was carried starting voltage keeps electrode and address electrode power delivery device; And receive keep the conveying voltage of electrode supply conveyer after, the institute's fixed electrode on the plasma display panel module carries three of starting voltage and scan electrode power delivery device to form.
2. according to the power control of the described plasm TV of claim 1, it is characterized in that the described electrode supply conveyer of keeping of keeping electrode feed drive power supply to above-mentioned plasma display panel module is the 1st power delivery device; Address electrode power delivery device to the address electrode feed drive power supply of above-mentioned plasma display panel module is the 2nd power delivery device.
3,, it is characterized in that described three power delivery devices to three power supplys of above-mentioned plasma display panel module conveying are the 3rd power delivery devices according to the power control of the described plasm TV of claim 1; Scan electrode power delivery device to the scan electrode feed drive power supply of above-mentioned plasma display panel module is the 4th power delivery device.
4. according to the power control of the described plasm TV of claim 1, it is characterized in that described interchanger is by relay from power supply to power controller that carry; According to microprocessor control signal, the relay drive of control relay is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02144744 CN1226869C (en) | 2002-12-10 | 2002-12-10 | Power supply controller for plasma television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02144744 CN1226869C (en) | 2002-12-10 | 2002-12-10 | Power supply controller for plasma television |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1507272A CN1507272A (en) | 2004-06-23 |
| CN1226869C true CN1226869C (en) | 2005-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02144744 Expired - Fee Related CN1226869C (en) | 2002-12-10 | 2002-12-10 | Power supply controller for plasma television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1226869C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100746256B1 (en) * | 2006-03-14 | 2007-08-03 | 엘지전자 주식회사 | Driving apparatus and method for plasma display panel |
| CN103338159B (en) | 2013-06-19 | 2016-08-10 | 华为技术有限公司 | Polling dispatching implementation method and device |
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2002
- 2002-12-10 CN CN 02144744 patent/CN1226869C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1507272A (en) | 2004-06-23 |
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| C14 | Grant of patent or utility model | ||
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Owner name: LG ELECTRONICS (NANJING) PLASMA CO., LTD. Free format text: FORMER OWNER: LG ELECTRONICS (SHENYANG) CO., LTD. Effective date: 20070316 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070316 Address after: 210046 Hengtong Datong 77, Nanjing economic and Technological Development Zone, Jiangsu Patentee after: LG Electronics (Nanjing) Plasma Co., Ltd. Address before: 110179 No. 35, No. 40, hi tech Development Zone, Liaoning, Shenyang Patentee before: LG Electronics (Shenyang) Co., Ltd. |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |