CN106100336A - DC voltage converting circuit and there is the display floater of this DC voltage converting circuit - Google Patents
DC voltage converting circuit and there is the display floater of this DC voltage converting circuit Download PDFInfo
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- CN106100336A CN106100336A CN201610682288.4A CN201610682288A CN106100336A CN 106100336 A CN106100336 A CN 106100336A CN 201610682288 A CN201610682288 A CN 201610682288A CN 106100336 A CN106100336 A CN 106100336A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
nullThe present invention provides a kind of DC voltage converting circuit and display floater，DC voltage converting circuit includes that current source combines、First voltage-multiplying circuit、Second voltage-multiplying circuit、Amplifying circuit、Testing circuit、Subtractor、Time schedule controller、Actuator，The outfan of the first voltage-multiplying circuit connects the input of amplifying circuit，Current source combination connects the control end of amplifying circuit，Second voltage-multiplying circuit is connected between outfan and the voltage output end of amplifying circuit，Testing circuit is for detecting the electric current of voltage output end and obtaining detecting voltage output detections voltage to subtractor according to electric current，Subtractor is used for the output detections voltage difference with reference voltage to time schedule controller，Time schedule controller is for sending control signal to described actuator after receiving difference，Described actuator connects the control end of described amplifying circuit for selecting a wherein current source of described current source combination according to described control signal，To regulate the electric current of described voltage output end.
Description
Technical field
The present invention relates to display screen field, particularly relate to a kind of DC voltage converting circuit and there is the conversion of this DC voltage
The display floater of circuit.
Background technology
DC/DC transducer for being converted to the DC voltage of different magnitude of voltage by DC voltage, and it is applied to electricity in large quantities
In sub-device.Existing DC/DC transducer is directly connected to load circuit, and the electric current that different load circuits needs is different, existing
DC/DC transducer can not adjust output electric current to mate different load circuits.
Summary of the invention
For overcoming the deficiencies in the prior art, the present invention provide a kind of scalable output electric current DC voltage converting circuit and
There is the display floater of this DC voltage converting circuit.
A kind of DC voltage converting circuit, described DC voltage converting circuit include current source combination, the first voltage-multiplying circuit,
Second voltage-multiplying circuit, amplifying circuit, testing circuit, subtractor, time schedule controller, actuator, described first voltage-multiplying circuit defeated
Going out end and connect the input of described amplifying circuit, the combination of described current source includes that multiple current source, the combination of described current source connect
The control end of described amplifying circuit, described second voltage-multiplying circuit be connected to the outfan of described amplifying circuit and voltage output end it
Between, described voltage output end is used for connecting load circuit, and described testing circuit is for detecting the electric current of described voltage output end also
Obtain detecting voltage and output detections voltage according to described electric current and be used for output detections voltage to described subtractor, described subtractor
Giving described time schedule controller with the difference of reference voltage, described time schedule controller controls letter for sending after receiving described difference
Number give described actuator, described actuator for according to described control signal select described current source combination a wherein current source
Connect the control end of described amplifying circuit, to regulate the electric current of described voltage output end.
Further, described testing circuit includes that photo-coupler, described photo-coupler include light emitting diode, photosensitive three poles
Pipe, the first resistance, the second resistance；The outfan that described light emitting diode is connected to described second voltage-multiplying circuit is defeated with described voltage
Going out between end, the colelctor electrode of described phototriode passes through described first resistance eutral grounding, and the emitter stage of described phototriode leads to
Crossing described second resistance and connect power end, the colelctor electrode of described phototriode is also connected with described comparison circuit to export described inspection
Survey voltage to described subtractor.
Further, described subtractor includes normal phase input end, reverse input end, outfan, and described normal phase input end is even
Connecing the colelctor electrode of described phototriode, described reverse input end is used for receiving described reference voltage, the output of described subtractor
End connects described time schedule controller.
Further, described first voltage-multiplying circuit includes first input end and the second input, and described first input end leads to
Crossing resistance and connect the positive pole of the first diode, the negative pole of described first diode connects the positive pole of the second diode, and described second
The negative pole of diode connects the input of described amplifying circuit, and described second input is connected in series institute by resistance and electric capacity
Stating the negative pole of the first diode, described first input end is used for receiving DC voltage, and described second input is used for receiving pulse
Signal.
Further, described amplifying circuit includes PNP type triode, and the emitter stage of described PNP type triode is as described
The input of amplifying circuit, the colelctor electrode of described PNP type triode is as the outfan of described amplifying circuit, described positive-negative-positive three
The base stage of pole pipe is as the control end of described amplifying circuit.
Further, described second voltage-multiplying circuit includes the 3rd input and four-input terminal, and described 3rd input leads to
Crossing resistance and connect the positive pole of the 3rd diode, described 3rd input connects described colelctor electrode, the negative pole of described 3rd diode
Connecting the positive pole of the 4th diode, the negative pole of described 4th diode connects the input of described testing circuit, described 4th defeated
Entering the end negative pole being connected in series described 3rd diode by resistance Yu electric capacity, described four-input terminal is used for receiving pulse letter
Number.
Further, described time schedule controller exports the control signal to described actuator and includes two level signals, institute
Stating current source combination and include four current sources, described actuator is for according to electricity described in the lever selection of said two level signal
A current source in the combination of stream source.
Further, each current source includes current source body, and described current source body passes through switch element ground connection, described
Actuator for the level of general layout said two level signal send four switching signals to described four switch elements so that its
In a switching elements conductive and select the current source body of the switch element of corresponding conducting to connect the control end of described amplifying circuit.
A kind of display floater, described display floater includes above-mentioned DC voltage converting circuit.
Beneficial effects of the present invention: described DC voltage converting circuit includes current source combination, amplifying circuit, detection electricity
Road, subtractor, time schedule controller, actuator, described testing circuit and the electric current of described subtractor detection voltage output end root
Obtain detecting voltage the output detections voltage difference with reference voltage to described time schedule controller, described sequential according to described electric current
Controller is used for according to described control to described actuator, described actuator for sending control signal after receiving described difference
A wherein current source of current source combination described in signal behavior connects the control end of described amplifying circuit, defeated to regulate described voltage
Go out the electric current of end.Described DC voltage converting circuit selects the electric current of correspondence by the size of current of detection voltage output end
Source, to play the effect of the electric current adjusting voltage output end.
Accompanying drawing explanation
Fig. 1 is the system block diagram of the DC voltage converting circuit better embodiment of display floater of the present invention.
Fig. 2 is the circuit connection diagram of the DC voltage converting circuit better embodiment of display floater of the present invention.
Detailed description of the invention
Below, in conjunction with accompanying drawing, various embodiments of the present invention will be described in detail.
Referring to Fig. 1 and Fig. 2, the DC voltage converting circuit better embodiment of display floater of the present invention includes current source
Combination 73, first voltage-multiplying circuit the 101, second voltage-multiplying circuit 105, amplifying circuit 103, testing circuit 31, subtractor 33, sequential control
Device 50 processed, actuator 71.In the present embodiment, described current source combination 73 and described actuator 71 are integrated in an integrated chip
In.
As in figure 2 it is shown, described amplifying circuit 105 includes PNP type triode, the emitter stage conduct of described PNP type triode
The input of described amplifying circuit, the colelctor electrode of described PNP type triode is as the outfan of described amplifying circuit, described PNP
The base stage of type audion is as the control end of described amplifying circuit.
Described first voltage-multiplying circuit 101 includes first input end and the second input, and described first input end is used for receiving
DC voltage VAA, described second input is connected by resistance R3 for return pulse signal LX1, described first input end VAA
The positive pole of the first diode D1, the positive pole of described first diode D1 connects through described electric capacity C1 ground connection.Described one or two pole
The negative pole of pipe D1 connects the positive pole of the second diode D2, and the negative pole of described second diode D2 connects described amplifying circuit 105
Input, the second input of described first voltage-multiplying circuit 101 is connected in series the described 1st by resistance R4 and electric capacity C2's
The negative pole of pole pipe D1.
Described second voltage-multiplying circuit 105 includes that the 3rd input and four-input terminal, described 3rd input pass through resistance
R6 connects the positive pole of the 3rd diode D3, and described 3rd input connects described colelctor electrode, the negative pole of described 3rd diode D3
Connecting the positive pole of the 4th diode D4, the negative pole of described 4th diode D4 connects the input of described testing circuit 31, described
Four-input terminal is used by the negative pole being connected in series described 3rd diode D3 of resistance R5 and electric capacity C4, described four-input terminal
In return pulse signal LX1.
Described testing circuit 31 includes photoelectrical coupler, resistance R1, resistance R2, and described photoelectrical coupler includes light-emitting diodes
Pipe, phototriode.
The positive pole of described light emitting diode connects the negative pole of described 4th diode D4, the negative pole of described light emitting diode connects
Meeting described voltage output end VGH, the colelctor electrode of described phototriode passes through described resistance R1 ground connection, described phototriode
Emitter stage connects power end Vcc by described resistance R2, and the colelctor electrode of described phototriode is also connected with described subtractor 33
Normal phase input end.Described light emitting diode is luminous for the size according to described voltage output end VGH, described phototriode
312 produce corresponding couple current for the luminance according to described light emitting diode 311, described phototriode 312
Colelctor electrode produces the normal phase input end of detection voltage output extremely described subtractor 33.
The inverting input of described subtractor 33 is used for receiving reference voltage Vref, and the outfan of described subtractor 33 connects
Described time schedule controller 50.Described time schedule controller 50 connects described actuator 71.
Described current source combination 73 includes multiple current source, and in the present embodiment, described current source group includes 4 electric currents
Source.4 current sources are respectively by switch element ground connection.In the present embodiment, described 4 current sources are respectively by 4 field effects
Pipe Q1, Q2, Q3, Q4 ground connection.Described field effect transistor Q1, Q2, Q3, Q4 grid as described switch element control end and with institute
State actuator 71 to connect.
During use, described subtractor 33 exports described detection electricity in reception after the detection voltage of described testing circuit 31
Pressure exports control signal to described time schedule controller 50, described time schedule controller 50 according to described difference with the difference of reference voltage
To described actuator 71, in the present embodiment, described control signal includes two level signals.Described actuator 71 is according to described
Control signal exports its that a group selection signal selects to described 4 field effect transistor Q1, Q2, Q3, Q4 that described current source combines
In one current source connect described amplifying circuit 105 control end, such that it is able to regulate the electric current of described voltage output end.Such as,
Described time schedule controller 50 exports two level signals B0 according to described difference, and B1 gives described actuator 71, described actuator 71
According to said two level signal B0, the level of B1 is different, exports 4 and selects signal A1, A2, A3, A4 to described 4 field effects
Pipe Q1, Q2, Q3, Q4,4 select signal A1, A2, A3, A4 one of them select for high level signal correspondence current source.
Although illustrate and describing the present invention with reference to specific embodiment, but it should be appreciated by those skilled in the art that:
In the case of without departing from the spirit and scope of the present invention limited by claim and equivalent thereof, can carry out at this form and
Various changes in details.
Claims (9)
1. a DC voltage converting circuit, it is characterised in that described DC voltage converting circuit include current source combination, first
Voltage-multiplying circuit, the second voltage-multiplying circuit, amplifying circuit, testing circuit, subtractor, time schedule controller, actuator, described first multiplication of voltage
The outfan of circuit connects the input of described amplifying circuit, and the combination of described current source includes multiple current source, described current source
Combination connects the control end of described amplifying circuit, and described second voltage-multiplying circuit is connected to outfan and the voltage of described amplifying circuit
Between outfan, described voltage output end is used for connecting load circuit, and described testing circuit is used for detecting described voltage output end
Electric current and obtain detecting voltage and output detections voltage to described subtractor according to described electric current, described subtractor is used for exporting
The difference of detection voltage and reference voltage gives described time schedule controller, and described time schedule controller is for sending out after receiving described difference
Sending control signal to described actuator, described actuator is for selecting described current source to combine wherein according to described control signal
One current source connects the control end of described amplifying circuit, to regulate the electric current of described voltage output end.
DC voltage converting circuit the most according to claim 1, it is characterised in that described testing circuit includes optical coupling
Device, described photo-coupler includes light emitting diode, phototriode, the first resistance, the second resistance；Described light emitting diode connects
Between the outfan and described voltage output end of described second voltage-multiplying circuit, the colelctor electrode of described phototriode is by described
First resistance eutral grounding, the emitter stage of described phototriode connects power end, described phototriode by described second resistance
Colelctor electrode be also connected with described comparison circuit with export described detection voltage give described subtractor.
DC voltage converting circuit the most according to claim 2, it is characterised in that described subtractor includes that positive inputs
End, reverse input end, outfan, described normal phase input end connects the colelctor electrode of described phototriode, described reverse input end
For receiving described reference voltage, the outfan of described subtractor connects described time schedule controller.
DC voltage converting circuit the most according to claim 1, it is characterised in that described first voltage-multiplying circuit includes first
Input and the second input, described first input end connects the positive pole of the first diode, described first diode by resistance
Negative pole connect the positive pole of the second diode, the negative pole of described second diode connects the input of described amplifying circuit, described
Second input is by the negative pole being connected in series described first diode of resistance with electric capacity, and described first input end is used for receiving
DC voltage, described second input is used for return pulse signal.
DC voltage converting circuit the most according to claim 4, it is characterised in that described amplifying circuit includes positive-negative-positive three
Pole is managed, and the emitter stage of described PNP type triode is as the input of described amplifying circuit, the colelctor electrode of described PNP type triode
As the outfan of described amplifying circuit, the base stage of described PNP type triode is as the control end of described amplifying circuit.
DC voltage converting circuit the most according to claim 5, it is characterised in that described second voltage-multiplying circuit includes the 3rd
Input and four-input terminal, described 3rd input connects the positive pole of the 3rd diode, described 3rd input by resistance
Connecting described colelctor electrode, the negative pole of described 3rd diode connects the positive pole of the 4th diode, the negative pole of described 4th diode
Connecting the input of described testing circuit, described four-input terminal is connected in series described 3rd diode by resistance and electric capacity
Negative pole, described four-input terminal be used for return pulse signal.
DC voltage converting circuit the most according to claim 1, it is characterised in that described time schedule controller exports to described
The control signal of actuator includes that two level signals, the combination of described current source include four current sources, and described actuator is used for
A current source in current source combination described in lever selection according to said two level signal.
DC voltage converting circuit the most according to claim 7, it is characterised in that each current source includes that current source is originally
Body, described current source body passes through switch element ground connection, and described actuator is sent out for the level of general layout said two level signal
Send four switching signals to described four switch elements so that wherein a switching elements conductive and select the switch unit of corresponding conducting
The current source body of part connects the control end of described amplifying circuit.
9. a display floater, it is characterised in that described display floater includes that the DC voltage of any one of claim 1 to 8 turns
Change circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610682288.4A CN106100336B (en) | 2016-08-17 | 2016-08-17 | DC voltage converting circuit and display panel with the DC voltage converting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610682288.4A CN106100336B (en) | 2016-08-17 | 2016-08-17 | DC voltage converting circuit and display panel with the DC voltage converting circuit |
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| Publication Number | Publication Date |
|---|---|
| CN106100336A true CN106100336A (en) | 2016-11-09 |
| CN106100336B CN106100336B (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610682288.4A Active CN106100336B (en) | 2016-08-17 | 2016-08-17 | DC voltage converting circuit and display panel with the DC voltage converting circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448621A (en) * | 2018-10-19 | 2019-03-08 | 深圳市华星光电技术有限公司 | A kind of driving circuit and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1578081A (en) * | 2003-07-29 | 2005-02-09 | 因芬尼昂技术股份公司 | Multichannel dc/dc inverter |
| CN1617454A (en) * | 2003-11-13 | 2005-05-18 | 得州仪器公司 | Applying desired voltage at a node |
| CN1659771A (en) * | 2002-06-04 | 2005-08-24 | 皇家飞利浦电子股份有限公司 | Dc-dc converter |
| CN201854186U (en) * | 2010-08-16 | 2011-06-01 | 雅达电子有限公司 | Modular DC-DC (Direct Current-Direct Current) converter system and control device thereof |
| CN102255505A (en) * | 2011-07-29 | 2011-11-23 | 索尔思光电（成都）有限公司 | APD (avalanche photo diode) voltage control circuit and method |
| CN204145330U (en) * | 2014-09-30 | 2015-02-04 | 西安电子工程研究所 | A kind of high-pressure electrostatic pulse power |
-
2016
- 2016-08-17 CN CN201610682288.4A patent/CN106100336B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1659771A (en) * | 2002-06-04 | 2005-08-24 | 皇家飞利浦电子股份有限公司 | Dc-dc converter |
| CN1578081A (en) * | 2003-07-29 | 2005-02-09 | 因芬尼昂技术股份公司 | Multichannel dc/dc inverter |
| CN1617454A (en) * | 2003-11-13 | 2005-05-18 | 得州仪器公司 | Applying desired voltage at a node |
| CN201854186U (en) * | 2010-08-16 | 2011-06-01 | 雅达电子有限公司 | Modular DC-DC (Direct Current-Direct Current) converter system and control device thereof |
| CN102255505A (en) * | 2011-07-29 | 2011-11-23 | 索尔思光电（成都）有限公司 | APD (avalanche photo diode) voltage control circuit and method |
| CN204145330U (en) * | 2014-09-30 | 2015-02-04 | 西安电子工程研究所 | A kind of high-pressure electrostatic pulse power |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448621A (en) * | 2018-10-19 | 2019-03-08 | 深圳市华星光电技术有限公司 | A kind of driving circuit and display device |
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| Publication number | Publication date |
|---|---|
| CN106100336B (en) | 2019-01-11 |
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