CN101136626A - High voltage gate driver ic with multi-function gating - Google Patents
High voltage gate driver ic with multi-function gating Download PDFInfo
- Publication number
- CN101136626A CN101136626A CNA2007101821250A CN200710182125A CN101136626A CN 101136626 A CN101136626 A CN 101136626A CN A2007101821250 A CNA2007101821250 A CN A2007101821250A CN 200710182125 A CN200710182125 A CN 200710182125A CN 101136626 A CN101136626 A CN 101136626A
- Authority
- CN
- China
- Prior art keywords
- output voltage
- voltage signal
- switch
- circuit
- driver
- 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
Links
Images
Classifications
-
- 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
- G09G3/2965—Driving circuits for producing the waveforms applied to the driving electrodes using inductors for energy recovery
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
- H03K17/165—Modifications for eliminating interference voltages or currents in field-effect transistor switches by feedback from the output circuit to the control circuit
- H03K17/166—Soft switching
Abstract
A high voltage gate driver circuit in accordance with an embodiment of the present application includes a first driver operable to provide a first output voltage signal, a second driver operable to provide a second output voltage signal, internal circuitry operable to process the second output voltage signal to provide a processed output voltage signal having different characteristics than the first output voltage signal and a selection circuit operable to select one of the first output voltage signal and the processed output voltage signal as a gate drive signal. The high voltage gate driver may also include a single external power switch connected to the selection circuit such that the gate drive signal is provided to the gate of the external power switch to turn the external power switch on and off as desired.
Description
Related application
The application number that the application requires on September 1st, 2006 to submit to is 60/824,335 name is called the interests and the priority of the U.S. Provisional Patent Application of " HIGHVOLTAGE GATE DRIVER IC (HVIC) WITH MULTIPLE GATINGFUNCTIONS ", and its full content is hereby incorporated by reference.
Technical field
The present invention relates to improved high voltage gate driver circuit, more specifically, relate to the drive circuit that uses in Plasmia indicating panel (PDP), this drive circuit provides multiple gate control function when reducing external power switch and other outer member quantity.
Background technology
Fig. 1 shows the conventional high-tension gate driver ic 10 that is used for PDP.Plasmia indicating panel generally includes the cell matrix, and each cell all comprises gas, and these gases are transformed into plasma owing to apply voltage on described cell.In monochromatic display floater, the ballistic phonon of ionized gas own, this photon are used to apply the charged particle of one of electrode of ionization voltage as the flow direction.In color plasma display panels, phosphor powder layer is preferably on the surface that is applied to described cell, and this cell is the emission colourama when being subjected to the photon excitation of being launched by ionized gas.In the circuit of Fig. 1, external power switch 14a, 14b are used to control the voltage that offers PDP.
Especially, circuit 10 comprises driver 12a, the 12b of two separation, and described driver 12a and 12b are respectively applied for control switch Q1a, Q2a and Q1b, Q2b, so that output voltage V outa, the Voutb of the gate pole that is respectively applied for control mains switch 14a, 14b to be provided.Mains switch 14a, 14b are respectively applied for and are provided at ionization voltage or the scanning voltage of representing with Vscan among Fig. 1.Can also provide external circuit 16 so that additional function to be provided.For example, if desired, external circuit 16 can also be used to control the dv/dt that is offered the voltage of PDP by circuit 10.Therefore, the HVIC among Fig. 1 needs multichannel driver 12a, 12b, outside adjunct circuit 16 and two external power switch 14a, 14b, thus multi-function gating is provided.Thus, described conventional gate drive circuit sizable space of needs and cost are higher relatively.
Therefore, providing high voltage gate driver ic is useful to avoid these problems.
Summary of the invention
The purpose of this invention is to provide the high voltage gate driver circuit with multi-function gating, this circuit has reduced the quantity of essential outer member.
High voltage gate driver circuit according to the application's embodiment comprises first driver that first output voltage signal can be provided; Second driver of second output voltage signal can be provided; Internal circuit, this internal circuit can be handled second output voltage signal so that the treated output voltage signal that has with the first output voltage signal different qualities to be provided; And the selection circuit, this selection circuit can select one of first output voltage signal and treated output voltage signal as gate electrode drive signals.Thereby described high voltage gate driver can also comprise the single external power switch that is connected to described selection circuit and this gate electrode drive signals be offered the gate pole of external power switch to open or to close this external power switch as required.
Other features and advantages of the present invention will become apparent in to description taken together with the accompanying drawings of the present invention following.
Description of drawings
Fig. 1 provides the schematic diagram of the conventional high-tension gate driver ic of multi-function gating.
Fig. 2 is the schematic diagram according to the high voltage gate driver circuit of the embodiment of the invention.
Embodiment
The present invention relates to the high voltage gate driver circuit, this circuit provides multi-function gating to reduce the quantity of outer member simultaneously.Therefore, keeping high performance complexity and its essential space that has reduced circuit simultaneously.
With reference to figure 2, the high voltage gate driver circuit 20 according to the embodiment of the invention has been described in further detail.Drive circuit 20 is preferably and comprises first driver 22 and second driver 24 that output signal Vout1 and Vout2 can be provided respectively.First and second drivers 22,24 are preferably the gate characteristic that provides different.Driver 22 is preferably and comprises buffer 32, and this buffer 32 provides square-wave input signal 23, and provides first control signal for control electrode or the terminal of the switch Q1, the Q2 that are connected in series.ON/OFF state according to described switch provides output voltage V out1 by the node A between switch Q1, Q2.Therefore, switch Q1, Q2 control so that the first output voltage signal Vout1 of expectation to be provided via first control signal.
Driver 24 comprises provides input signal 23
1Second buffer 34.Switch Q3 and the Q4 that provides second control signal to be connected in series with control is provided second amplifier 34.Output voltage V out2 is by being arranged on that Node B between switch Q3, the Q4 provides and based on the on off state of described switch.Therefore, switch Q3, Q4 control so that the second output voltage signal Vout2 of expectation to be provided via second control signal.Selectively, if desired, driver 24 can receiving inputted signal 23, driver 22 received signals 23 simultaneously
1Perhaps any one driver all can received signal 23 and signal 23
1In conjunction with as the input.
Driver 24 also is preferably and comprises internal circuit 34, and if desired, this internal circuit 34 can be used to provide the additional treatments of the second output voltage signal Vout2.For example, circuit 34 can be used for operational feedback control.Therefore, it is can be as required controlled by restriction dv/dt to offer the dv/dt of the voltage of PDP via external power switch 36.Though internal circuit 34 can be used for the control of dv/dt, the application is not limited to this embodiment, and internal circuit 34 can be used to provide any other additional function.Thus, the output of internal circuit 34 provides treated output voltage signal Vout2
1, this voltage signal Vout2
1Finally by 24 outputs of second driver.Thus, internal circuit 34 can be used to guarantee by this treated output voltage signal Vout2
1The gate characteristic that provides is different with the gate characteristic that is provided by the first output voltage signal Vout1.
Drive circuit 20 also is preferably and comprises and select circuit 38, this selection circuit 38 to provide from the first output voltage signal Vout1 of driver 22 with from the treated output voltage signal Vout2 of the internal circuit 34 of driver 24
1Select circuit 38 can select the first output voltage signal Vout1 and treated output voltage signal Vout2
1Thereby in one offer the gate pole of single mains switch 36 as gate electrode drive signals.The on off state of gate electrode drive signals control switch 36, and thus ionization voltage or scanning voltage are offered PDP.
Thus, the application's drive circuit 20 uses single external power switch 36 that multi-function gating is provided.Thus, do not need the external power switch that provides additional.As shown in Figure 2, in a preferred embodiment, first and second drivers 22,24, internal circuit 34 and selection circuit 38 are preferably in single integrated circuit to be realized.Thus, drive circuit 20 has saved the external circuit 16 that uses in the above traditional HVIC10 that describes in 1 with reference to the accompanying drawings.In addition, driver 22,24 is preferably via connect shared common ground voltage publicly.And independent gate-drive output can offer by selecting circuit 38 to offer the gate electrode drive signals of switch 36.
Be preferably based on first and second input signals 23,23 by the selection of selecting circuit 38 to carry out
1In at least one.Selectively, can be by the selection of selecting circuit 38 to carry out by any suitable logical block control.
Thus, the application's drive circuit 20 uses driver 22,24 that the multi-function gating with different gate characteristics is provided, and has reduced the quantity of essential outer member simultaneously.Therefore, thus the application's drive circuit 20 reduced the necessary space of realization multi-function gating and since its reduced number of elements and reduced cost.
Although the present invention is described in conjunction with its certain embodiments, a lot of other variations and modification and other purposes it will be apparent to those skilled in the art that.Therefore, being preferably the present invention is not limited by particular content disclosed herein.
Claims (10)
1. high voltage gate driver circuit, this circuit comprises:
In order to first driver of first output voltage signal to be provided;
In order to second driver of second output voltage signal to be provided;
Internal circuit, this internal circuit are used to handle described second output voltage signal so that the treated output voltage signal that has with the described first output voltage signal different qualities to be provided; And
Select circuit, this selection circuit be used for selecting described first output voltage signal and treated output voltage signal one as gate electrode drive signals.
2. high voltage gate driver circuit according to claim 1, this circuit further comprises
External power switch, this external power switch are connected to described selection circuit, thereby described gate electrode drive signals is offered the gate pole of this external power switch, to open or to close this external power switch as required.
3. high voltage gate driver circuit according to claim 2, wherein said first driver also comprises:
In order to provide first of first control signal to drive buffer based on first input signal;
The first flash switch; And
First lower edge switch, this first lower edge switch and the described first flash switch are connected in series, and wherein the first flash switch and first lower edge switch are controlled to provide described first output voltage signal at the first node place between the described first flash switch and first lower edge switch based on described first control signal.
4. high voltage gate driver circuit according to claim 3, wherein said second driver also comprises:
In order to second buffer amplifier of second control signal to be provided based on second input signal;
The second flash switch; And
Second lower edge switch, this second lower edge switch and the described second flash switch are connected in series, and wherein the second flash switch and second lower edge switch are controlled to provide described second output voltage signal at the Section Point place between the described second flash switch and this second lower edge switch based on described second control signal.
5. high voltage gate driver circuit according to claim 4, wherein said selection circuit selects one in described first output voltage signal and the described treated output voltage signal as gate electrode drive signals based in described first input signal and second input signal at least one.
6. high voltage gate driver circuit according to claim 5, wherein said internal circuit are used for FEEDBACK CONTROL is incorporated into described second output voltage signal, so that described treated output voltage signal to be provided.
7. high voltage gate driver circuit according to claim 6, wherein said selection circuit are used to select described treated output voltage signal and this treated output voltage signal are provided to the gate pole of described mains switch to control the dv/dt of described drive circuit.
8. high voltage gate driver circuit according to claim 5, wherein said external power switch are unlocked and close the scanning voltage that is used for Plasmia indicating panel with control.
9. high voltage gate driver circuit according to claim 8, wherein said first driver, second driver, internal circuit and selection circuit are realized in single integrated circuit.
10. be connected pin in the high voltage gate driver circuit according to claim 9, wherein said first driver and the shared described single integrated circuit of second driver publicly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82433506P | 2006-09-01 | 2006-09-01 | |
| US60/824,335 | 2006-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101136626A true CN101136626A (en) | 2008-03-05 |
Family
ID=39160507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101821250A Pending CN101136626A (en) | 2006-09-01 | 2007-09-03 | High voltage gate driver ic with multi-function gating |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2008061252A (en) |
| KR (1) | KR100912294B1 (en) |
| CN (1) | CN101136626A (en) |
| TW (1) | TW200822038A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5839896B2 (en) | 2010-09-09 | 2016-01-06 | 株式会社半導体エネルギー研究所 | Display device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06268505A (en) * | 1993-03-12 | 1994-09-22 | Toshiba Corp | Semiconductor integrated circuit |
| JPH08204526A (en) * | 1995-01-23 | 1996-08-09 | Toshiba Corp | Gate drive circuit for switching element |
| KR0166633B1 (en) * | 1995-12-15 | 1999-04-15 | 윤덕용 | Discharge lamp for electronic ballast of signal amplifier type self-gate driving circuit |
| JP3564893B2 (en) | 1996-09-02 | 2004-09-15 | 株式会社明電舎 | Gate drive circuit for voltage controlled switching element |
| JP2005051901A (en) | 2003-07-31 | 2005-02-24 | Fuji Electric Device Technology Co Ltd | Power converter |
| JP4468094B2 (en) * | 2003-09-26 | 2010-05-26 | 日立プラズマディスプレイ株式会社 | Load drive circuit and display device using the same |
-
2007
- 2007-08-31 KR KR1020070088614A patent/KR100912294B1/en active IP Right Grant
- 2007-08-31 JP JP2007225666A patent/JP2008061252A/en active Pending
- 2007-08-31 TW TW096132459A patent/TW200822038A/en unknown
- 2007-09-03 CN CNA2007101821250A patent/CN101136626A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| TW200822038A (en) | 2008-05-16 |
| JP2008061252A (en) | 2008-03-13 |
| KR100912294B1 (en) | 2009-08-17 |
| KR20080020969A (en) | 2008-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9305484B2 (en) | Capacitive-load driving circuit and plasma display apparatus using the same | |
| JPH06130909A (en) | Flat-panel display apparatus, wherein low-voltage matrix address signal controls more higher pixel-exciting voltage | |
| JP5273769B2 (en) | Flat panel display drive circuit | |
| CN105654888A (en) | Common electrode voltage compensating circuit and display device | |
| US20060017715A1 (en) | Display device, display driver, and data transfer method | |
| US20050151715A1 (en) | Driving circuit of liquid crystal display | |
| US20080055200A1 (en) | High voltage gate driver ic with multi-function gating | |
| CN101136626A (en) | High voltage gate driver ic with multi-function gating | |
| WO2021254041A1 (en) | Laser transmitter driving circuit and system, and high-speed optical communication device | |
| US6291941B1 (en) | Method and circuit for controlling a field emission display for reducing emission to grid | |
| JP2005056378A (en) | Current driving system having high-conformity reference current and its current driver | |
| US7679584B2 (en) | Electron Emission Display (EED) with separated grounds | |
| US5721560A (en) | Field emission control including different RC time constants for display screen and grid | |
| US7876291B2 (en) | Drive device | |
| US20100007643A1 (en) | Driving circuit | |
| CN101751844B (en) | Method for driving a display and related display apparatus | |
| CN218471574U (en) | Double-display-screen driving circuit | |
| TWI702591B (en) | Source driver module, display, method for driving a display panel and method for driving a display device | |
| TWI738311B (en) | Display driving circuit and driving method | |
| JP2804259B2 (en) | Drive device for capacitive loads | |
| KR20000074469A (en) | Data driving circuit for color plasma display panel | |
| KR100479765B1 (en) | High voltage driving circuit for plasma display panel | |
| JPH05175807A (en) | Buffer circuit | |
| JPH04219077A (en) | Cathode ray tube connection circuit | |
| CN1004744B (en) | Signal processing system with digital-to-analog conversion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080305 |