CN201163748Y - Electronic device and related power control unit capable of improving power supply stability when power-on and power-off - Google Patents
Electronic device and related power control unit capable of improving power supply stability when power-on and power-off Download PDFInfo
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- CN201163748Y CN201163748Y CNU2008200077874U CN200820007787U CN201163748Y CN 201163748 Y CN201163748 Y CN 201163748Y CN U2008200077874 U CNU2008200077874 U CN U2008200077874U CN 200820007787 U CN200820007787 U CN 200820007787U CN 201163748 Y CN201163748 Y CN 201163748Y
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Abstract
The utility model discloses an electronic device capable of increasing power source stability during startup and shutdown. The electronic device comprises a voltage generator, a processing unit, a first power source control device and a second power source control device, wherein the voltage generator is used to generate an input signal; the processing unit is used to generate a power source according to an output signal; the first power source control device, coupled between the voltage generator and the processing unit, is used to carry out filtering processing of the input signal when the electronic device is started up so as to output the output signal to the processing unit; and the second power source control device, coupled with the processing unit, is used to carry out active discharge of a voltage-stabilizing capacitor coupled with the processing unit when the electronic device is shut down so as to quickly remove the residual voltage on the voltage-stabilizing capacitor.
Description
Technical field
The utility model relates to a kind of power control that is used for an electronic installation, the power control of outstanding reference and a kind of stability of power supply when being used for improving this electronic installation start with shutdown.
Background technology
Electronic equipment can produce surge current (Inrush Current) in the moment of power connection, claims burst current again, although the time of keeping is of short duration, because the specification that the burst current value can bear much larger than system load very easily causes the damage of electronic equipment.Therefore, use the electronic equipment of external transformer at present,, all can be provided with the circuit that suppresses burst current in inside, in case the locking system load damages because of burst current as computer, printer etc. with power supply.Yet burst current suppressing circuit is formed cost of parts that it is required and circuit area cost height by surging protection IC and a plurality of passive component of special use usually.
On the other hand, the power source supply end of system load generally is provided with the electric capacity of high capacity, as the usefulness of voltage stabilizing.Still leave residual voltage after big electric capacity causes system closedown, and voltage descends slowly.If residual voltage as yet discharge do not finish and start once again, internal system action may misjudgment and can't normally start.The method of existing eliminating residual voltage also must just can be finished by the circuit of complexity, does not meet current cost-effective demand.
Summary of the invention
Therefore, main purpose of the present utility model promptly is to provide a kind of power control of the stability of power supply when being used for improving the electronic installation start with shutdown.
The utility model discloses a kind of power control that is used for an electronic installation, stability of power supply when starting shooting in order to improve this electronic installation, this power control includes a high pass filter unit, is used for an input signal is carried out Filtering Processing, to produce an output signal; And a control unit, be coupled to one first voltage generator of this high pass filter unit and this electronic installation, be used for voltage quasi position according to this output signal, export this and output signal to this first voltage generator.
The utility model also discloses a kind of power control that is used for an electronic installation, stability of power supply when shutting down in order to improve this electronic installation, this power control includes a first transistor, this the first transistor includes first end that is coupled to one first voltage generator, one second end, and the 3rd end that is coupled to a ground end, be used for signal according to this second end, control this first end to the signal of the 3rd end and connect; One first current limliting unit is coupled between second end of this first voltage generator and this first transistor, is used for controlling the conducting electric current of first end of the first transistor to the 3rd end of the first transistor; An and transistor seconds, this transistor seconds includes first end that is coupled to second end of the first transistor, one second end, and one is coupled to this ground and holds the 3rd end, be used for voltage according to second end of transistor seconds, first end of control transistor seconds to the signal of the 3rd end of transistor seconds connects, and then first end of control the first transistor is to the signal connection of the 3rd end of the first transistor.
The utility model also discloses a kind of electronic installation that improves the stability of power supply when starting shooting with shutdown, includes a voltage generator, is used for producing an input signal; One processing unit is used for producing a power supply according to an output signal; One first power control is coupled between this voltage generator and this processing unit, is used for when this electronic installation start this input signal being carried out Filtering Processing, outputs signal to this processing unit to export this; And a second source control device, be coupled to this processing unit, be used for when this electronic installation shutdown, an electric capacity of voltage regulation that is coupled to this processing unit being discharged.
Description of drawings
Fig. 1 is the schematic diagram of the utility model embodiment one power control.
Fig. 2 is the schematic diagram of the utility model embodiment one power control.
The schematic diagram of the electronic installation of the stability of power supply when Fig. 3 can improve start with shutdown for the utility model embodiment one.
Current waveform figure when Fig. 4 does not comprise a power control for the electronic installation of Fig. 3.
Current waveform figure when Fig. 5 comprises a power control for the electronic installation of Fig. 3.
Fig. 6 comprises the forward and backward voltage oscillogram of a power control for the electronic installation of Fig. 3.
The main element symbol description:
10,20 power controls
12 voltage generators
14,22 first voltage generators
100 high pass filter unit
102 control units
110 electric capacity
112 resistance
24 second voltage generators
26,36 electric capacity of voltage regulation
200 the first transistors
202 first current limliting unit
204 transistor secondses
206 second current limliting unit
30 electronic installations
300 voltage generators
302 processing units
304 first power controls
306 second source control device
Embodiment
Please refer to Fig. 1, figure is the schematic diagram of the utility model embodiment one power control 10.Power control 10 is the stability of power supply when being used for improving the electronic installation start, includes a high pass filter unit 100 and a control unit 102.High pass filter unit 100 includes electric capacity 110 and a resistance 112.Electric capacity 110 is coupled between a voltage generator 12 and the control unit 102, and resistance 112 1 ends are coupled to control unit 102 and electric capacity 110, and the other end is coupled to a ground end.High pass filter unit 100 is differential circuits, it is according to the appearance value of electric capacity 110 and the resistance of resistance 112, and design reasonable time constant is used for the input signal that voltage generator 12 is produced is carried out Filtering Processing, eliminate the burst current composition in the input signal, to produce an output signal.Control unit 102 is coupled between high pass filter unit 100 and one first voltage generator 14, is used for voltage quasi position according to output signal, and whether the control output signal exports first voltage generator 14 to.When the voltage quasi position of output signal during greater than a critical value, control unit 102 exports output signal to first voltage generator 14; When the voltage quasi position of output signal during less than critical value, control unit 102 can not export output signal to first voltage generator 14.In other words, the action of control unit 102 is just as a switch, be used for controlling the conducting situation between the high pass filter unit 100 and first voltage generator 14, for instance, control unit 102 can be a p type gold oxygen semiconductor field effect transistor unit (p-Channel MOSFET).
In brief, power control 10 is coupled between the voltage generator 12 and first voltage generator 14, is used for eliminating the burst current composition in the input signal that voltage generator 12 produced, stable output signal is exported to first voltage generator 14.Therefore, if applied power source control device 10 is in electronic installation,, can protect the do not started shooting destruction of the burst current that moment produced of electronic installation as computer, printer etc.
On the other hand, please refer to Fig. 2, Fig. 2 is the schematic diagram of the utility model embodiment one power control 20.Power control 20 is the residual voltages when being used for removing apace the electronic installation shutdown, the stability of power supply when improving shutdown.Power control 20 includes a first transistor 200, one first current limliting unit 202, a transistor seconds 204 and one second current limliting unit 206.The first transistor 200 and transistor seconds 204 be preferably bipolar junction transistor (Bipolar Junction Transistor, BJT).The collector electrode of the first transistor 200 (Collector) is coupled to one first voltage generator 22, and base stage (Base) is coupled to the collector electrode of the first current limliting unit 202 and transistor seconds 204, and emitter (Emitter) is coupled to a ground end; The collector electrode of transistor seconds 204 is coupled to the base stage and the first current limliting unit 202 of the first transistor 200, and base stage is coupled to one second current limliting unit 206, and emitter is held with being coupled to.The first current limliting unit 202 is coupled between the collector electrode of the base stage of first voltage generator 22, the first transistor 200 and transistor seconds 204, be used for controlling the conducting electric current of the collector electrode of the first transistor 200, connect with collector electrode to the signal of emitter of control the first transistor 200 to the emitter of the first transistor 200.The second current limliting unit 206 is coupled between the base stage of one second voltage generator 24 and transistor seconds 204, be used for controlling the electric current of second voltage generator 24 to the base stage of transistor seconds 204, collector electrode to the signal of the emitter of transistor seconds 204 with control transistor seconds 204 connects, and then the collector electrode of control the first transistor 200 to the signal of the emitter of the first transistor 200 connects.
It should be noted that, first voltage generator 22 is to be located in the electronic installation, be coupled to the electric capacity of voltage regulation 26 of a high capacity, power control 20 is used for electric capacity of voltage regulation 26 is carried out the active discharge, to remove the residual voltage that is positioned at when electronic installation shuts down on the electric capacity of voltage regulation 26 apace.The running that describes power control 20 in detail is as follows.When electronic installation is started shooting and is in holding state, 24 conductings of second voltage generator, so transistor seconds 204 conductings, and then the first transistor 200 is closed.When electronic installation shut down, the output signal of first voltage generator 22 was reduced to 0V, and at this moment, the base voltage of transistor seconds 204 is 0V, and transistor seconds 204 is closed in advance, and then made the first transistor 200 conductings.It should be noted that when electronic installation shuts down the voltage on the electric capacity of voltage regulation 26 is difficult for descending.In embodiment of the present utility model, when the first transistor 200 conductings, power control 20 can pass through the first current limliting unit 202, the conducting electric current of design the first transistor 200, electric capacity of voltage regulation 26 being carried out active discharge, and then the initial condition that makes the voltage quasi position of the output signal of first voltage generator 22 get back to 0V soon.Thus, power control 20 can be avoided making the problem of electronic installation generation misoperation because the voltage of electric capacity of voltage regulation 26 does not return back to initial condition when electronic installation is started shooting again.
In brief, power control 20 is the switchings by the conducting situation of the first transistor 200 and transistor seconds 204, remove the residual voltage on the electric capacity of voltage regulation 26 apace, so after the electronic installation shutdown, will can not be subjected to residual voltage to influence and can't restart.It should be noted that power control 20 is an embodiment of the present utility model, transistor seconds 204 can be not limited to use bipolar junction transistor, also can use other transistor units as switch, as the gold oxygen semiconductor field effect transistor unit.Yet because the first transistor 200 is a current controling element, it must bear big conducting electric current, therefore must careful selection element.In addition, because the conducting state of transistor seconds 204 is according to its base voltage control, therefore the base stage of transistor seconds 204 also can be by dividing potential drop and current-limiting apparatus such as divider resistance, be coupled to first voltage generator 22, that is to say that first voltage generator 22 also can be used to control the conducting state of transistor seconds 204.In addition, whether visual actual needs determines in the use of the second current limliting unit 206.
Please refer to Fig. 3, the schematic diagram of an electronic installation 30 of the stability of power supply when Fig. 3 can improve start with shutdown for the utility model embodiment.Electronic installation 30 can be the power supply processing unit in the multi-function printer, and it includes a voltage generator 300, a processing unit 302, one first power control 304 and a second source control device 306.Voltage generator 300 is used for producing an input signal, and processing unit 302 is coupled to an electric capacity of voltage regulation 36, is used for according to an output signal, produces the power supply of second source control device 306.The structure of first power control 304 is identical with power control 10, and it is coupled between voltage generator 300 and the processing unit 302, is used for eliminating the burst current composition in the input signal, to export stable output signal to processing unit 302.The structure of second source control device 306 is identical with power control 20, and it is coupled to processing unit 302, is used for when electronic installation 30 shutdown electric capacity of voltage regulation 36 being carried out the active discharge.It should be noted that first voltage generator 14 of Fig. 1 equals first voltage generator 22 of Fig. 3 when power control 10 and power control 20 merging application.That is to say that the output signal of first power control 304 is the power supply of second source control device 306, it is equal to first voltage generator 22, is arranged in processing unit 302.First power control 304 is by processing unit 302, is coupled to second source control device 306.
As from the foregoing; by first power control 304 and second source control device 306; to the do not started shooting destruction of the burst current that moment produced of electronic installation 30; and then can protect the running of electronic installation 30 normal; and can be after electronic installation 30 shutdown; apace electric capacity of voltage regulation 36 is discharged, to remove the residual voltage on the electric capacity of voltage regulation 36.
On the other hand, please refer to Fig. 4 and Fig. 5, when Fig. 4 does not comprise first power control 304 for electronic installation 30, the current waveform figure of the output of voltage generator 300; When Fig. 5 comprises first power control 304 for electronic installation 30, the current waveform figure of the output of first power control 304.As shown in Figure 4, the peak value of burst current reaches 9.84A, and with general multi-function printer, the burst current peak value far surpasses the permissible maximum current specification of multi-function printer 4A.In comparison, as shown in Figure 5, first power control 304 can suppress burst current effectively, makes the burst current peak value in when start reduce to 2.46A, and then the do not started shooting destruction of the burst current that moment produced of protection multi-function printer.
Please refer to Fig. 6, Fig. 6 comprises the forward and backward discharge voltage oscillogram of second source control device 306 for electronic installation 30.CH1 and CH2 represent respectively that electronic installation 30 comprises first power control 304 but when not comprising second source control device 306, the voltage waveform of the output of the output of voltage generator 300 and a 5V voltage generator when shutdown, wherein voltage generator 300 produces 12V voltage, the 5V voltage generator is equal to second voltage generator 24 of Fig. 2, is arranged in processing unit 302.When CH3 and CH4 represent that respectively electronic installation 30 comprises first power control 304 and comprises second source control device 306, the voltage waveform of the output of the output of first power control 304 and 5V voltage generator when shutdown.As shown in Figure 6, if electronic installation 30 does not comprise power control 306, voltage generator 300 needs cost to surpass 10 seconds ability discharge offs, and the 5V voltage generator also must surpass 2 seconds ability discharge offs.In comparison, if electronic installation 30 comprises second source control device 306, voltage generator 300 and 5V voltage generator all are no more than one second and get final product discharge off.Therefore, second source control device 306 can be removed the residual voltage of each power source supply end when shutdown of electronic installation 30.
In sum; the utility model is by high pass filter unit 100; therefore burst current composition in the input signal of electronic installation is carried out Filtering Processing, become safe output signal, can protect the do not started shooting destruction of the burst current that moment produced of electronic installation.On the other hand, the utility model is by the switching of the conducting situation of the first transistor 200 and transistor seconds 204, remove the residual voltage of electronic installation shutdown back on electric capacity of voltage regulation apace, so electronic installation will can not be subjected to residual voltage to influence and can't restart.
The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (26)
1. power control that is used for an electronic installation, the stability of power supply when improving described electronic installation start is characterized in that described power control includes:
One high pass filter unit is used for an input signal is carried out Filtering Processing, to produce an output signal; And
One control unit is coupled between one first voltage generator of described high pass filter unit and described electronic installation, is used for voltage quasi position according to described output signal, exports described described first voltage generator that outputs signal to.
2. power control as claimed in claim 1 is characterized in that, described high pass filter unit includes:
One electric capacity is coupled between a voltage generator and the described control unit; And
One resistance, an end of described resistance is coupled to described control unit and described electric capacity, and the other end is coupled to a ground end.
3. power control as claimed in claim 1 is characterized in that, described control unit is a p type metal oxide semiconductor field effect transistor element.
4. power control as claimed in claim 3 is characterized in that, described control unit is to be used for voltage quasi position in output signal during greater than a critical value, exports this and outputs signal to first voltage generator.
5. power control as claimed in claim 3 is characterized in that, described control unit also is used for voltage quasi position in output signal during less than this critical value, stops to export this and outputs signal to first voltage generator.
6. power control that is used for an electronic installation, the stability of power supply when improving described electronic installation shutdown is characterized in that described power control includes:
One the first transistor includes first end that is coupled to one first voltage generator, one second end, and the 3rd end that is coupled to a ground end, is used for voltage according to described second end, controls described first end to the signal of described the 3rd end and connects;
One first current limliting unit is coupled between described second end of described first voltage generator and described the first transistor, is used for controlling the conducting electric current of described first end of described the first transistor to described the 3rd end of described the first transistor; And
One transistor seconds, include first end that is coupled to described second end of described the first transistor, one second end, and one be coupled to the 3rd end of holding describedly, be used for voltage according to described second end of described transistor seconds, control of the signal connection of described first end of described transistor seconds, and then control of the signal connection of described first end of described the first transistor to described the 3rd end of described the first transistor to described the 3rd end of described transistor seconds.
7. power control as claimed in claim 6, it is characterized in that, described transistor seconds is a voltage at described second end of described transistor seconds during greater than a conducting voltage, and described first end of the described transistor seconds of conducting to the signal of described the 3rd end of described transistor seconds connects.
8. power control as claimed in claim 7, it is characterized in that, described transistor seconds is when described first end of described transistor seconds to the signal of described the 3rd end of described transistor seconds connects conducting, and described first end of closing described the first transistor to the signal of the 3rd end of the first transistor connects.
9. power control as claimed in claim 8, it is characterized in that, described transistor seconds is a voltage at described second end of described transistor seconds during less than a conducting voltage, and described first end of closing described transistor seconds to the signal of described the 3rd end of described transistor seconds connects.
10. power control as claimed in claim 9, it is characterized in that, described transistor seconds is at described first end of described transistor seconds during to the signal connection closed of described the 3rd end of described transistor seconds, and first end of conducting the first transistor to the signal of the 3rd end of the first transistor connects.
11. power control as claimed in claim 10 is characterized in that, first voltage generator is located in the electronic installation, is coupled to an electric capacity, and described power control is to be used for described electric capacity is carried out the active discharge.
12. power control as claimed in claim 6 is characterized in that, also comprises one second voltage generator, described second voltage generator is coupled to second end of described transistor seconds, is used for controlling the voltage of described second end of described transistor seconds.
13. power control as claimed in claim 12, it is characterized in that, also comprise one second current limliting unit, the described second current limliting unit is coupled between described second end of described second voltage generator and described transistor seconds, is used for controlling the electric current of described second voltage generator to described second end of described transistor seconds.
14. power control as claimed in claim 6 is characterized in that, described the first transistor is a n type bipolar junction transistor element, and first end of described the first transistor is a collector electrode, and second end is a base stage, and the 3rd end is an emitter.
15. power control as claimed in claim 14 is characterized in that, described transistor seconds is a n type bipolar junction transistor element, and first end of described transistor seconds is a collector electrode, and second end is a base stage, and the 3rd end is an emitter.
16. power control as claimed in claim 14 is characterized in that, described transistor seconds is a n type metal oxide semiconductor field effect transistor element, and first end of described transistor seconds is drain electrode, and second end is a grid, and the 3rd end is a source electrode.
17. the electronic installation that can improve the stability of power supply when starting shooting with shutdown is characterized in that, includes:
One voltage generator is used for producing an input signal;
One processing unit is used for producing a power supply according to an output signal;
One first power control is coupled between described voltage generator and the described processing unit, is used for described input signal being carried out Filtering Processing, to export the described described processing unit that outputs signal to when described electronic installation is started shooting; And
One second source control device is coupled to described processing unit, is used for when described electronic installation shuts down an electric capacity of voltage regulation that is coupled to described processing unit being discharged.
18. electronic installation as claimed in claim 17 is characterized in that, described first power control includes:
One high pass filter unit is used for an input signal is carried out Filtering Processing, to produce an output signal; And
One control unit is coupled between one first voltage generator of described high pass filter unit and described processing unit, is used for voltage quasi position according to described output signal, exports described described first voltage generator that outputs signal to.
19. electronic installation as claimed in claim 18 is characterized in that, described high pass filter unit includes:
One electric capacity is coupled between described voltage generator and the described control unit; And
One resistance, an end of described resistance is coupled to described control unit and described electric capacity, and the other end is coupled to a ground end.
20. electronic installation as claimed in claim 19 is characterized in that, described control unit is to be used for voltage quasi position in output signal during greater than a critical value, exports this and outputs signal to described processing unit.
21. electronic installation as claimed in claim 19 is characterized in that, described control unit also is used for voltage quasi position in output signal during less than described critical value, stops to export this and outputs signal to described processing unit.
22. electronic installation as claimed in claim 17 is characterized in that, described second source control device includes:
One the first transistor, include first end that is coupled to described processing unit, one second end, and the 3rd end that is coupled to a ground end, be used for voltage according to described second end of described the first transistor, described first end of controlling described the first transistor to the signal of described the 3rd end of described the first transistor connects;
One first current limliting unit is coupled between described second end of described processing unit and described the first transistor, is used for controlling by described first end of the described the first transistor conducting electric current to described the 3rd end of described the first transistor; And
One transistor seconds, include first end that is coupled to described second end of described the first transistor, one second end, and one be coupled to the 3rd end of holding describedly, be used for voltage according to described second end of described transistor seconds, control of the signal connection of described first end of described transistor seconds, and then control of the signal connection of described first end of described the first transistor to described the 3rd end of described the first transistor to described the 3rd end of described transistor seconds.
23. electronic installation as claimed in claim 22, it is characterized in that, described transistor seconds is a voltage at described second end of described transistor seconds during greater than a conducting voltage, and described first end of the described transistor seconds of conducting to the signal of described the 3rd end of described transistor seconds connects.
24. electronic installation as claimed in claim 23, it is characterized in that, described transistor seconds is when described first end of described transistor seconds to the signal of described the 3rd end of described transistor seconds connects conducting, and described first end of closing described the first transistor to the signal of described the 3rd end of described the first transistor connects.
25. electronic installation as claimed in claim 24, it is characterized in that, described transistor seconds is a voltage at second end of described transistor seconds during less than a conducting voltage, and described first end of closing described transistor seconds to the signal of described the 3rd end of described transistor seconds connects.
26. electronic installation as claimed in claim 25, it is characterized in that, described transistor seconds is at described first end of described transistor seconds during to the signal connection closed of described the 3rd end of described transistor seconds, and first end of conducting the first transistor to the signal of the 3rd end of this first transistor connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200077874U CN201163748Y (en) | 2008-03-12 | 2008-03-12 | Electronic device and related power control unit capable of improving power supply stability when power-on and power-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200077874U CN201163748Y (en) | 2008-03-12 | 2008-03-12 | Electronic device and related power control unit capable of improving power supply stability when power-on and power-off |
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| Publication Number | Publication Date |
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| CN201163748Y true CN201163748Y (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200077874U Expired - Lifetime CN201163748Y (en) | 2008-03-12 | 2008-03-12 | Electronic device and related power control unit capable of improving power supply stability when power-on and power-off |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591437A (en) * | 2011-01-11 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Driving circuit |
| CN103545793A (en) * | 2012-07-17 | 2014-01-29 | 晶豪科技股份有限公司 | Integrated circuit provided with circuit damage protection mechanism and method of circuit damage protection mechanism |
| CN104036716A (en) * | 2014-06-24 | 2014-09-10 | 上海中航光电子有限公司 | Drive and control circuit and display device of display panel |
| CN104737431A (en) * | 2012-09-10 | 2015-06-24 | 意法爱立信有限公司 | Method and apparatus for controlling a start-up sequence of a DC/DC Buck converter |
-
2008
- 2008-03-12 CN CNU2008200077874U patent/CN201163748Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591437A (en) * | 2011-01-11 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Driving circuit |
| CN103545793A (en) * | 2012-07-17 | 2014-01-29 | 晶豪科技股份有限公司 | Integrated circuit provided with circuit damage protection mechanism and method of circuit damage protection mechanism |
| CN103545793B (en) * | 2012-07-17 | 2016-12-21 | 晶豪科技股份有限公司 | There is circuit and damage integrated circuit and the method thereof of protection mechanism |
| CN104737431A (en) * | 2012-09-10 | 2015-06-24 | 意法爱立信有限公司 | Method and apparatus for controlling a start-up sequence of a DC/DC Buck converter |
| CN104737431B (en) * | 2012-09-10 | 2018-01-26 | 意法爱立信有限公司 | For the method and apparatus for the initiating sequence for controlling DC/DC buck converters |
| CN104036716A (en) * | 2014-06-24 | 2014-09-10 | 上海中航光电子有限公司 | Drive and control circuit and display device of display panel |
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