CN101944879A - Exciter response mimic circuit and exciter response simulation method applied to printer - Google Patents
Exciter response mimic circuit and exciter response simulation method applied to printer Download PDFInfo
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- CN101944879A CN101944879A CN 201010254668 CN201010254668A CN101944879A CN 101944879 A CN101944879 A CN 101944879A CN 201010254668 CN201010254668 CN 201010254668 CN 201010254668 A CN201010254668 A CN 201010254668A CN 101944879 A CN101944879 A CN 101944879A
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Abstract
The invention discloses an exciter response mimic circuit and an exciter response simulation method applied to a printer. The positive and negative polar circuit of a prior exciter response mimic circuit comprises an insulated gate field effect transistor. According to the invention, an electrical potential control module is added into the prior exciter response mimic circuit to provide a reference potential for the positive and negative polar circuit in the exciter response mimic circuit, namely, the voltage similar to the exciter signal attached to the two ends of the exciter response mimic circuit of the ink jet printer is taken as the reference potential. In this way, the exciter response mimic circuit applied to the printer can be matched with the exciter response of the ink jet printer based on the improvement of the positive and negative polar circuit specification.
Description
Technical field
The present invention relates to the printer field, particularly a kind of exciter response analog circuit and exciter response analogy method that is applied on the printer.
Background technology
Control section in the ink-jet printer mainly is made up of control chip, ink-jet printer, as shown in Figure 1, wherein, general and the print cartridge binding of control chip, effect is the providing of type information in control print cartridge and ink-jet printer coupling and the follow-up print procedure, in control chip, write down initial informations such as relevant print cartridge model, color, ink total amount and the date printed that in follow-up print procedure, obtains, the type informations such as ink surplus in the print cartridge.Ink-jet printer stores initial informations such as the model of default print cartridge and color.
When beginning to print, ink-jet printer sends a detection signal to the control chip that is bundled on the print cartridge; After control chip receives detection signal, response according to the initial information generation detection signal of self storing sends to ink-jet printer, and this response that ink-jet printer will receive and the initial information of storage are mated, after the match is successful, the control printer main body was used the ink printed in the print cartridge.In print procedure, the type informations such as ink surplus in ink-jet printer record date printed, the print cartridge.
When once printing was finished, the inkjet printing chance sent the type informations such as ink surplus in date printed, the print cartridge to control chip and preserves, and is used for reading from control chip when printing next time.If read ink surplus in the print cartridge when not enough, then can reminding user to replace or stop to control print procedure.
As seen, ink-jet printer need mate the print cartridge that is installed on this printer in print procedure, and the mode of coupling is whether the initial information of determining to be bundled in the initial information of the chip-stored on the print cartridge and ink-jet printer storage mates, after the coupling, this printer could be printed.This method is utilized by ink-jet printer production firm, the initial information that can mate ink-jet printer is set on the chip that is bundled on the print cartridge, thereby the print cartridge that ink-jet printer uses carried out monopoly of sale and price markup is sold, improved the cost that the user uses this ink-jet printer.
Ink-jet printer generates manufacturer and also this method is applied in the judgement whether the ink surplus in the print cartridge is filled, and is described in detail below the detailed process.
Fig. 2 is existing ink-jet printer control section structure two schematic diagrames, on the basis of structure shown in Figure 1, measure for the ink surplus to print cartridge, it is provided with the piezoelectric ceramic module again in print cartridge, and this piezoelectric ceramic module is by the cavity that is arranged in print cartridge and stick at piezoelectric transducer and form.When the ink surplus of test in the print cartridge, ink-jet printer sends the DC pulse of high voltage to the piezoelectric transducer of this piezoelectric ceramic module, and this DC pulse can cause piezoelectric transducer to produce mechanical deformation, is equivalent to cavity has been knocked; Subsequently, the resonance that cavity produces causes the vibration of piezoelectric transducer, produces correspondent voltage, and piezoelectric transducer sends to the ink-jet printer processing with the frequency of correspondent voltage signal.Because the frequency of different voltage signals is represented the ink capacity information in the print cartridge, so the frequency of the voltage signal that ink-jet printer obtains according to feedback just can be determined the ink surplus in the current print cartridge, remind the user of use in time to change print cartridge or the control type body is no longer printed according to the result of the ink surplus deficiency of determining.
This piezoelectric ceramic module can be arranged on the control chip or separately equally and be bundled on the print cartridge.
It is this that whether full judgement exist shortcoming to the ink surplus in the print cartridge: the first, and the cost of the employed cavity material of piezoelectric ceramic module and to relate to manufacturing cost higher; The second, the employed cavity of this piezoelectric ceramic will be arranged among the print cartridge, its sealing is relatively poor, and the ink in the print cartridge leaks easily; The 3rd, the employed cavity long period of soaking of this piezoelectric ceramic is in ink, perishable.
In addition, ink-jet printer production firm is in order further to monopolize print cartridge, utilize the characteristic of this piezoelectric ceramic module, ink-jet printer is except the resonance characteristic of testing this piezoelectric ceramic module, also tested its charge-discharge characteristic under the pumping signal of opposed polarity etc., like this, the ink surplus in determining print cartridge simultaneously, exciter response and the default exciter response that the ink surplus is arranged that feedback is obtained mate, and determine whether to continue to print and whether notify the user.For example: ink-jet printer sends pumping signal to this piezoelectric ceramic module, this pumping signal can be the signal of cancelling again after this piezoelectric ceramic module is charged, when the frequency of the voltage signal that feeds back to ink-jet printer,, be used to mate the default exciter response of ink-jet printer with the signal affix of piezoelectric transducer voltage decrease speed exciter response as feedback; Also for example, ink-jet printer sends pumping signal to this piezoelectric ceramic module, this signal can be for carrying out the DC pulse of the high voltage of different electrical power polarity to this piezoelectric ceramic module, the frequency of the voltage signal of piezoelectric transducer under different electrical power polarity is sent to ink-jet printer as exciter response, be used to mate the default exciter response of ink-jet printer.
As can be seen, ink-jet printer manufacturer is provided with the process of coupling print cartridge on the ink-jet printer on the ink-jet printer, the whether full process of ink surplus of particularly mating print cartridge, for the normal ink-jet printer that uses ink-jet printer manufacturer to provide, must use ink-jet printer manufacturer that print cartridge is provided, this brings inconvenience for user's use and raises the cost, and has also limited the fair competition chance of other print cartridge manufacturers.
In order to address this problem, the exciter response analog circuit has just appearred, this circuit is bundled on the print cartridge or independent the setting, after being used to receive the pumping signal of the various drive characteristics that ink-jet printer sends, after generation is matched with the exciter response of ink-jet printer according to pumping signal, this exciter response is used for representing the full information of ink of print cartridge, sends to the ink-jet printer coupling.
Particularly, publication number is to disclose a kind of exciter response simulation circuit structure in the application for a patent for invention of CN101298213, comprise: described oscillating circuit parallel connection, connect or be embedded into resistance-capacitance network, positive anti-polarity circuit parallel connection, connect or be embedded in the resistance-capacitance network, or/and oscillating circuit is in parallel or the positive anti-polarity circuit of connecting.The effect of oscillating circuit is when ink-jet printer is described circuit additional incentive signal, obtain being matched with the resonance characteristic of the exciter response of ink-jet printer by this circuit, the effect of positive anti-polarity circuit be when ink-jet printer be that the additional pumping signal of described circuit has the different electrical power polarity chron, make described circuit have different impedances and time constant, the effect of resistance-capacitance network is that described circuit can feed back the charge-discharge characteristic of the exciter response that is matched with ink-jet printer when ink-jet printer is the pumping signal of the additional different durations of described circuit.Wherein a kind of structure in the described circuit structure as shown in Figure 3, P1 wherein and P2 are being excited a little of this circuit, just ink-jet printer is used to the end points of this exciter response simulation circuit structure additional incentive signal.
Ink-jet printer manufacturer is in order to hit compatible consumptive material production firm, the resonance characteristic that detection is had the transducer print cartridge is carried out stricter qualification, the resonance characteristic and the charge-discharge characteristic of exciter response analog circuit also need to detect the charge-discharge characteristic of piezoelectric transducer under different voltages under promptly single opposed polarity that only needs to detect piezoelectric transducer.Publication number is that the application for a patent for invention of CN101293428 discloses this exciter response analog circuit, comprise: oscillating circuit, resistance-capacitance network, positive anti-polarity circuit and nonlinear block, wherein, oscillating circuit, positive anti-polarity circuit and nonlinear block embed, in parallel or be connected in series in the resistance-capacitance network.The effect of described nonlinear block be when ink-jet printer be the additional different voltage differences of described circuit discharge and recharge pumping signal the time, obtain the charge-discharge characteristic of the exciter response that ink-jet printer sets by described circuit.Wherein a kind of structure in the described circuit structure as shown in Figure 4.
No matter adopt above-mentioned any exciter response simulation circuit structure, positive anti-polarity circuit wherein mainly is made up of technotron.As shown in Figure 5, in the drawings, being excited is P5 and P6 a little, and technotron Q1 and resistance R 2 have constituted positive anti-polarity circuit, are series in the resistance-capacitance network.When two of circuit structure shown in Figure 5 are excited to add forward voltage between a P5 and the P6, promptly being excited a P5 voltage is higher than when being excited P6 voltage, technotron Q1 ends, and the charge-discharge characteristic in the exciter response in this circuit is to be obtained jointly by the resistance of resistance R 2, resistance-capacitance network circuit and nonlinear block; And when when two of circuit structure shown in Figure 5 are excited to add reverse voltage between a P5 and the P6, promptly being excited a P5 voltage is lower than when being excited P6 voltage, technotron Q1 conducting, resistance R 2 is by short circuit, exciter response in the circuit has just lacked the resistance of resistance R 2, thereby under the situation of the positive reversed polarity pumping signal of difference, realize different charge-discharge characteristics.
But, owing to there are two PN junctions between the grid of technotron Q1 and source electrode and grid and the drain electrode, when being excited to add reverse voltage between a P5 and the P6 for two, PN junction between grid and the drain electrode is because grid connects high voltage and forward conduction, and because the conducting resistance between grid and the drain electrode is far smaller than the resistance in resistance-capacitance network and the nonlinear block, so can be between grid and the drain electrode and conducting prior to resistance-capacitance network and nonlinear block, thereby make resistance-capacitance network and nonlinear block by short circuit, can not charge for the electric capacity in resistance-capacitance network and the nonlinear block, lost the effect in circuit of resistance-capacitance network and nonlinear block.In order to address this problem, usually adopt big resistance of serial connection on the grid of technotron Q1, such as big resistance, stop grid and the PN junction conducting between the drain electrode of technotron Q1 or make its slow conducting, thereby address this problem greater than 100 megaohms.
Yet, adopt this solution can cause many-sided problem, such as, be connected in series big resistance resistance and can cause that the switch of technotron Q1 and deadline prolong, and make and be excited for two to be DC characteristic between a P5 and the P6, thereby cause the response characteristic variation of this circuit, departed from the response characteristic that ink-jet printer is set.Being connected in series big resistance resistance has also increased circuit cost, is unfavorable for circuit integration and is easy to generate the response characteristic variation that ghost effect causes this circuit.
In addition, no matter adopt above-mentioned any exciter response simulation circuit structure, positive anti-polarity circuit can adopt and resistance capacitance is set and reference potential is realized, additional driving voltage cooperates impedance and the time constant that changes the described exciter response analog circuit under different electrical power polarity by reference potential with at exciter response analog circuit two ends.Usually all be with ground (GND) reference potential as positive anti-polarity circuit, exciter response simulation circuit structure two schematic diagrames as shown in Figure 6 with positive anti-polarity circuit, the impedance of capacitor C 9 and resistance R 5 and time constant are different with capacitor C 11 and resistance R 6, when P7 termination high voltage, during P8 end ground connection, capacitor C 11 and resistance R 6 are had only capacitor C 9 and resistance R 5 to insert in the resistance-capacitance network by short circuit; When P7 end ground connection, during P8 termination high voltage, capacitor C 9 and resistance R 5 are had only capacitor C 11 and resistance R 6 to insert in the resistance-capacitance networks by short circuit, so just can satisfy a terminal voltage in the pumping signal that ink-jet printer adds and be 0 situation.But, additional pumping signal all is to be high level signal if ink-jet printer is described circuit two ends, being respectively 4 volts and 40 volts as the two ends additional signals, is that the positive anti-polarity circuit of GND just can not make circuit have to satisfy different impedances and the time constant that ink-jet printer requires by reference potential then.Therefore, the exciter response analog circuit is compatible poor at present, and the ink-jet printer type that is suitable for is limited.
Summary of the invention
In view of this, the invention provides a kind of exciter response analog circuit that is applied on the printer, improve the exciter response that simulation on the basis of positive anti-polarity circuit characteristic is matched with ink-jet printer.
The present invention also provides a kind of exciter response analogy method that is applied on the printer, improves the exciter response that simulation on the basis of positive anti-polarity circuit characteristic is matched with ink-jet printer.
According to above-mentioned purpose, technical scheme of the present invention is achieved in that
A kind of exciter response analog circuit that is applied on the printer, comprise oscillating circuit, resistance-capacitance network and positive anti-polarity circuit, wherein, described oscillating circuit parallel connection, connect or be embedded into resistance-capacitance network, positive anti-polarity circuit parallel connection, connect or be embedded in the resistance-capacitance network, or/and oscillating circuit is in parallel or the positive anti-polarity circuit of connecting, described positive anti-polarity circuit comprises isolated gate FET, wherein
The ink-jet printer test has the pumping signal of opposed polarity through described exciter response analog circuit, obtains different resonance characteristics and different charge-discharge characteristics that printer sets.
This circuit also comprises nonlinear circuit, in parallel, connect or be embedded in the resistance-capacitance network, be used for when ink-jet printer be the additional different voltage differences of described exciter response analog circuit discharge and recharge pumping signal the time, obtain the charge-discharge characteristic of the exciter response that ink-jet printer sets by described exciter response analog circuit.
Described positive anti-polarity circuit adopts one or more isolated gate FETs to form, when positive anti-polarity circuit adopts a plurality of isolated gate FET, and the in parallel or series connection of described a plurality of isolated gate FETs.
Described positive anti-polarity circuit also comprises one or more capacitance-resistance adjustment modules, is connected on respectively on the source electrode or drain electrode of described isolated gate FET;
Perhaps described resistance-capacitance network comprises one or more capacitance-resistance adjustment modules, is connected on respectively on the source electrode or drain electrode of described isolated gate FET.
Described serial or parallel connection is similar and different in the capacitance-resistance adjustment module of different isolated gate FETs.
Described isolated gate FET is P type or N type, and during for the N type, its substrate connects electronegative potential, and during for the P type, its substrate connects high potential.
The substrate of described isolated gate FET is unsettled.
This circuit also comprises the control of Electric potentials module, be used for adjusting the current potential of the voltage reference points of described positive anti-polarity circuit, the wherein end in voltage reference points and the exciter response analog circuit two ends is communicated with according to the pumping signal that ink-jet printer appends to described exciter response analog circuit two ends.
When described positive anti-polarity circuit adopts one or more isolated gate FETs to form, voltage reference points in the described positive anti-polarity circuit is the substrate of isolated gate FET, when described isolated gate FET is the N type, make its substrate connect electronegative potential by the control of Electric potentials module, during for the P type, make its substrate connect high potential by the control of Electric potentials module.
A kind of exciter response analog circuit that is applied on the printer, comprise oscillating circuit, resistance-capacitance network and positive anti-polarity circuit, wherein, described oscillating circuit parallel connection, series connection or be embedded into resistance-capacitance network, positive anti-polarity circuit parallel connection, the series connection or be embedded in the resistance-capacitance network, or/and oscillating circuit is in parallel or the positive anti-polarity circuit of connecting, also comprise the control of Electric potentials module, append to the current potential of the voltage reference points in the positive anti-polarity circuit of pumping signal adjustment at exciter response analog circuit two ends according to ink-jet printer, the wherein end in voltage reference points and the exciter response analog circuit two ends is communicated with.
This circuit also comprises nonlinear circuit, in parallel, connect or be embedded in the resistance-capacitance network, be used for when ink-jet printer be the additional different voltage differences of described exciter response analog circuit discharge and recharge pumping signal the time, obtain the charge-discharge characteristic of the exciter response that ink-jet printer sets by described exciter response analog circuit.
Described control of Electric potentials module is made up of two switch modules, the input of each switch module be connected respectively to the exciter response analog circuit wherein one be excited the end on, the output of each switch module is connected on the voltage reference points of positive anti-polarity circuit, the control end of each switch module be connected to the exciter response analog circuit another be excited on the end.
Described switch module is made up of one or more field effect transistor, when described field effect transistor is a plurality of, and in parallel or series connection, the drain electrode of field effect transistor wherein is an input, and grid is a control end, and source electrode is an output.
Described control of Electric potentials module also comprises protective circuit, is used for the protection switch module.
A kind of exciter response analogy method that is applied on the printer, this method comprises:
Ink-jet printer is the additional positive incentive signal of exciter response analog circuit;
Ink-jet printer test and excitation signal obtains exciter response under positive polarity through this circuit, comprising: resonance characteristic under the positive polarity and charge-discharge characteristic;
Ink-jet printer is the additional reverse energization signal of exciter response analog circuit;
Ink-jet printer test and excitation signal obtains exciter response under reversed polarity through this circuit, comprising: resonance characteristic under the reversed polarity and charge-discharge characteristic;
After the resonance characteristic of the exciter response that ink-jet printer obtains test and the exciter response of charge-discharge characteristic and setting are complementary, determine whether to continue to print or/and when the matching result that obtains is represented ink cartridge low in the print cartridge, notify the user according to the matching result that obtains.
As seen from the above technical solution, the present invention adopts isolated gate FET with the positive anti-polarity circuit in the existing exciter response analog circuit, perhaps isolated gate FET and capacitance-resistance adjustment module realize, wherein, electric capacity in the capacitance-resistance adjustment module intercepts the DC channel in the exciter response analog circuit, the capacitance-resistance adjustment module makes the exciter response analog circuit have different impedances and time constant under the pumping signal of positive reversed polarity, because the good insulating of isolated gate FET, improved the DC characteristic of exciter response analog circuit, can simulate the exciter response that is matched with ink-jet printer, therefore do not need as prior art, on the grid of technotron, to be connected in series the resistance of big resistance, thereby save cost and be beneficial to integrated.
Further, when positive anti-polarity circuit adopts when reference potential being set realizing, the present invention has also increased the control of Electric potentials module in existing exciter response analog circuit, be used to the positive anti-polarity circuit in the exciter response analog circuit that reference potential is provided, promptly append to the close voltage of the pumping signal at exciter response analog circuit two ends as the reference current potential with ink-jet printer.Like this, just unlike prior art, must be with the reference potential of fixing reference potential as positive anti-polarity circuit, but can by the control of Electric potentials module different reference potentials be set as required, make exciter response analog circuit provided by the invention compatible strong, can simulate the exciter response of the ink-jet printer that is matched with number of different types.
To sum up, the simulation on the basis of improving positive anti-polarity circuit characteristic of the exciter response analog circuit on the printer provided by the invention is matched with the exciter response of ink-jet printer.
Description of drawings
Fig. 1 is existing ink-jet printer control section structure one schematic diagram;
Fig. 2 is existing ink-jet printer control section structure two schematic diagrames;
Fig. 3 is existing exciter response simulation circuit structure one schematic diagram;
Fig. 4 is existing exciter response simulation circuit structure two schematic diagrames;
Fig. 5 is existing exciter response simulation circuit structure one schematic diagram with positive anti-polarity circuit;
Fig. 6 is existing exciter response simulation circuit structure two schematic diagrames with positive anti-polarity circuit;
Fig. 7 is exciter response simulation circuit structure one schematic diagram that is applied on the printer provided by the invention;
Fig. 8 is embodiment one structural representation that is applied in the exciter response analog circuit one on the printer provided by the invention;
Fig. 9 is embodiment two structural representations that are applied in the exciter response modular circuit two on the printer provided by the invention;
Figure 10 is exciter response analogy method one flow chart that is applied on the printer provided by the invention;
Figure 11 is exciter response simulation circuit structure two schematic diagrames that are applied on the printer provided by the invention;
Figure 12 is exciter response simulation circuit structure two embodiment one schematic diagram that is applied on the printer provided by the invention;
Figure 13 is exciter response simulation circuit structure two embodiment two schematic diagrames that are applied on the printer provided by the invention;
Figure 14 is a control of Electric potentials modular structure schematic diagram provided by the invention;
Figure 15 is structure one schematic diagram of switch module provided by the invention;
Figure 16 (a)～(c) is structure two schematic diagrames of switch module provided by the invention;
Figure 17 (a)～(b) is the switch module structural representation with protection provided by the invention;
Figure 18 is exciter response analogy method two flow charts that are applied on the printer provided by the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Fig. 7 is exciter response analog circuit one schematic diagram that is applied on the printer provided by the invention, and the positive anti-polarity circuit in this structure adopts isolated gate FET and capacitance-resistance adjustment module to realize.Particularly, compare with the exciter response analog circuit among prior art Fig. 5, positive anti-polarity circuit has wherein adopted the isolated gate FET Q2 series resistor R1 and capacitor C 1 realization successively of N type, wherein, the grid of the isolated gate FET Q2 of N type and this circuit one is excited end and is connected, source electrode is connected in series with resistance R 1, and drain electrode is connected with resistance-capacitance network, and substrate connects electronegative potential as the reference current potential.Resistance R 1 and capacitor C 1 have constituted the capacitance-resistance adjustment module.
In this embodiment, if adopt the exciter response analog circuit of Fig. 3 structure, then this exciter response modular circuit does not comprise nonlinear block, and just comprises oscillating circuit, resistance-capacitance network and positive anti-polarity circuit.Wherein, described oscillating circuit parallel connection, connect or be embedded into resistance-capacitance network, positive anti-polarity circuit parallel connection, connect or be embedded in the resistance-capacitance network, or/and oscillating circuit is in parallel or the positive anti-polarity circuit of connecting.The effect of oscillating circuit is when ink-jet printer is described circuit additional incentive signal, obtain being matched with the resonance characteristic of the exciter response of ink-jet printer by this circuit, the effect of positive anti-polarity circuit be when ink-jet printer be that the additional pumping signal of described circuit has the different electrical power polarity chron, make described circuit have different impedances and time constant, the effect of resistance-capacitance network be when ink-jet printer be the additional different durations of described circuit discharge and recharge pumping signal the time, described circuit can feed back the charge-discharge characteristic of the exciter response that is matched with ink-jet printer.
If adopt the exciter response analog circuit of Fig. 4 structure, then also comprise nonlinear block embed, in parallel or be connected in series in the resistance-capacitance network.The effect of described nonlinear block be when ink-jet printer be the additional different voltage differences of described circuit discharge and recharge pumping signal the time, obtain the charge-discharge characteristic of the exciter response that ink-jet printer sets by described exciter response analog circuit.
In the drawings, capacitor C 1 is used to intercept the DC channel of exciter response analog circuit, resistance R 1 makes circuit have different impedances and time constant with capacitor C 1 under the pumping signal of positive reversed polarity, when ink-jet printer adds reverse voltage between this circuit, promptly being excited the voltage of a P9 is lower than when being excited the voltage of a P10, then the isolated gate FET Q2 of N type ends, circuit is insulating properties, be resistance R 1 and capacitor C 1 open circuit, impedance in the exciter response of feedback and time constant are realized by resistance-capacitance network and nonlinear block; When ink-jet printer adds forward voltage between this circuit, promptly being excited the voltage of a P9 is higher than when being excited the voltage of a P10, the then isolated gate FET Q2 conducting of N type, impedance and time constant in the exciter response of feedback are embodied jointly by resistance-capacitance network, nonlinear block and resistance R 1 and capacitor C 1, thereby, the positive and negative polar character of isolated gate FET Q2 by the N type makes the exciter response analog circuit have different impedances and time constant.
In this embodiment, adopt the positive anti-polarity circuit of isolated gate FET and capacitance-resistance adjustment module can also serial or parallel connection in oscillating circuit, perhaps can also parallel connection, connect or be embedded in the resistance-capacitance network.
In the present invention, the capacitance-resistance adjustment module of series connection and isolated gate FET are as a positive anti-polarity circuit of son, and a positive anti-polarity circuit can or be composed in series by the positive anti-polarity circuit parallel connection of a plurality of sons.Also can be with the isolated gate FET series connection as positive anti-polarity circuit.
As shown in Figure 8, can be with the capacitance-resistance adjustment module of series connection and isolated gate FET as a positive anti-polarity circuit of son, and then the positive anti-polarity circuit of a plurality of sons composed in parallel positive anti-polarity circuit.Operation principle and Fig. 7 are similar, and when being excited to add forward voltage between a P9 and the P10, a plurality of isolated gate FET Q2 in parallel are cut off simultaneously, and when being excited to add reverse voltage between a P9 and the P10, a plurality of isolated gate FET Q2 are switched on simultaneously.
In this embodiment, the capacitance-resistance adjustment module of different insulative gate field-effect transistor Q2 serial connection can be different, like this, when each insulated type field effect transistor Q2 is in conducting state, the impedance of the capacitance-resistance adjustment module that each insulated type field effect transistor Q2 connects separately and time constant are all different, after being incorporated in the exciter response modular circuit, just can simulate the charge-discharge characteristic in the exciter response more exactly.
As shown in Figure 9, a plurality of isolated gate FET Q2 series connection can also be realized the positive and negative polar character of exciter response analog circuit, series connection method is not limited to shown in Figure 9, just a kind of method of series connection wherein shown in Figure 9, promptly the source electrode of each insulated type field effect transistor is connected in the drain electrode of another insulated type field effect transistor, operation principle is identical with the described method of work of Fig. 7.
In addition, because the substrate of the insulated type field effect transistor of each N type connects electronegative potential, so the source electrode of each insulated type field effect transistor and drain electrode all are symmetrical, source electrode and drain electrode just can be exchanged use like this, therefore the method for serial connection can also be with the source electrode butt joint of the insulated type field effect transistor of two N types, perhaps, no longer limit here the drain electrode butt joint of the insulated type field effect transistor of two N types.
In Fig. 9, when being excited to add forward voltage between a P9 and the P10, all insulated type field effect transistor are all ended, thereby impedance and the time constant of exciter response modular circuit under positive polarity embodied jointly by the capacitance-resistance adjustment module in resistance-capacitance network and the positive anti-polarity circuit; When being excited to add reverse voltage between a P9 and the P10, all all conductings of insulated type field effect transistor, thus impedance and the time constant of exciter response modular circuit under reversed polarity embodied jointly by the capacitance-resistance adjustment module in resistance-capacitance network, nonlinear block and the positive anti-polarity circuit.
In Fig. 9, can be connected in series a capacitance-resistance adjustment module, can certainly be each insulated type field effect transistor capacitance-resistance adjustment module of connecting respectively, and the capacitance-resistance adjustment module of series connection is identical or different.
Certainly, positive anti-polarity circuit can also and compose in parallel by a plurality of isolated gate FET Q2 series connection, and operation principle is identical, is not repeated here.
In above embodiment, positive anti-polarity circuit all has own capacitance-resistance adjustment module, and this capacitance-resistance adjustment module comprises resistance and electric capacity at least, and this capacitance-resistance adjustment module is handled and can be linked into positive anti-polarity circuit at home and abroad, can also be linked into resistance-capacitance network, not limit here.
In above embodiment, all be to illustrate with N type isolated gate FET Q2, certainly, can also adopt P type isolated gate FET to form positive anti-polarity circuit.When adopting P type isolated gate FET Q2, substrate connects high potential.
In above embodiment, no matter isolated gate FET adopts the N type still is the P type, also can be with the unsettled realization of its substrate.
The present invention can also adopt N type insulated type field effect transistor and P type insulated type field effect transistor to use with, and the operation principle of circuit is identical, is not repeated here.
Figure 10 is exciter response analogy method one flow chart that is applied on the printer provided by the invention, the capacitance-resistance adjustment module composition that the positive anti-polarity circuit in the exciter response analog circuit of setting adopts insulating gate type field effect tube and connected, and its concrete steps are:
Step 1004, ink-jet printer test and excitation signal obtain exciter response under reversed polarity through this circuit, comprising: resonance characteristic under the reversed polarity and charge-discharge characteristic, contain the impedance and the time constant of capacitance-resistance adjustment module;
After the resonance characteristic of the exciter response that step 1005, ink-jet printer obtain test and the exciter response of charge-discharge characteristic and setting are complementary, determine whether to continue to print or/and when the matching result that obtains is represented ink cartridge low in the print cartridge, notify the user according to the matching result that obtains.
When the positive anti-polarity circuit in the exciter response analog circuit adopted resistance capacitance and reference potential to realize, the present invention adopted fixing reference potential to realize unlike prior art, but has adopted the control of Electric potentials module that reference potential is set, and below specifies.
Figure 11 is exciter response simulation circuit structure two schematic diagrames that are applied on the printer provided by the invention, compare with exciter response analog circuit of the prior art, increased the control of Electric potentials module, this control of Electric potentials module is embedded in the exciter response analog circuit, append to the current potential of the voltage reference points in the positive anti-polarity circuit of pumping signal adjustment at exciter response analog circuit two ends according to ink-jet printer, the wherein end in voltage reference points and the exciter response analog circuit two ends is communicated with.
Here, because the existence of the control of Electric potentials module in the exciter response analog circuit, from being excited to hold the control of Electric potentials module can produce pressure reduction, level off in the exciter response analog circuit two ends the wherein voltage of an end so generally can only guarantee the current potential of the potential reference point of positive anti-polarity circuit, therefore adopted a wherein end that makes in voltage reference points and the exciter response analog circuit two ends to be communicated with here.
Particularly, if adopt the exciter response analog circuit of Fig. 3 structure, then this exciter response modular circuit does not comprise nonlinear block, and just comprise oscillating circuit, resistance-capacitance network, positive anti-polarity circuit and control of Electric potentials module, described oscillating circuit, resistance-capacitance network and the positive anti-polarity circuit of comprising wherein, the oscillating circuit parallel connection, connected or is embedded into resistance-capacitance network, positive anti-polarity circuit parallel connection, connect or be embedded in the resistance-capacitance network, or/and oscillating circuit is in parallel or the positive anti-polarity circuit of connecting.The effect of oscillating circuit is when ink-jet printer is described circuit additional incentive signal, obtain being matched with the resonance characteristic of the exciter response of ink-jet printer by this circuit, the effect of positive anti-polarity circuit be when ink-jet printer be that the additional pumping signal of described circuit has the different electrical power polarity chron, make described circuit have different impedances and time constant, the effect of resistance-capacitance network be when ink-jet printer be the additional different durations of described circuit discharge and recharge pumping signal the time, described circuit can feed back the charge-discharge characteristic of the exciter response that is matched with ink-jet printer; The control of Electric potentials module is used for appending to according to ink-jet printer the current potential of voltage reference points of the positive anti-polarity circuit of pumping signal adjustment at exciter response analog circuit two ends, and the wherein end in voltage reference points and the exciter response analog circuit two ends is communicated with.
If adopt the exciter response analog circuit of Fig. 4 structure, then also comprise nonlinear block embed, in parallel or be connected in series in the resistance-capacitance network.The effect of described nonlinear block be when ink-jet printer be the additional different voltage differences of described circuit discharge and recharge pumping signal the time, obtain the charge-discharge characteristic of the exciter response that ink-jet printer sets by described exciter response analog circuit.
Figure 12 is exciter response simulation circuit structure two embodiment one schematic diagram that is applied on the printer provided by the invention, as shown in the figure, the difference of this structure and Fig. 6 structure is, be revised as and connect the control of Electric potentials module connecting earth terminal between resistance R 5 and the resistance R 6, be that the input of control of Electric potentials module and control end are connected respectively to two of exciter response analog circuit and are excited on the end, output is connected between R5 and the resistance R 6, be used for the current potential of voltage reference points that ink-jet printer appends to the positive anti-polarity circuit of pumping signal adjustment at exciter response analog circuit two ends, the wherein end in voltage reference points and the exciter response analog circuit two ends is communicated with.
Figure 13 is exciter response simulation circuit structure two embodiment three schematic diagrames that are applied on the printer provided by the invention, as shown in the figure, the difference of this structure and Fig. 7 structure is, the substrate of isolated gate FET Q2 has been inserted the control of Electric potentials module, be that the input of control of Electric potentials module and control end are connected respectively to two of exciter response analog circuit and are excited on the end, output is connected to the substrate of isolated gate FET Q2, on the voltage reference points in the just positive anti-polarity circuit, be used for the current potential of voltage reference points that ink-jet printer appends to the positive anti-polarity circuit of pumping signal adjustment at exciter response analog circuit two ends, the wherein end in voltage reference points and the exciter response analog circuit two ends is communicated with.
Figure 14 is a control of Electric potentials modular structure schematic diagram provided by the invention, the control of Electric potentials module is by two switch modules, be that switch module 1 and switch module 2 constitute, the input of each switch module be connected respectively to the exciter response analog circuit wherein one be excited the end on, the output of each switch module is connected on the voltage reference points of positive anti-polarity circuit, the control end of each switch module be connected to the exciter response analog circuit another be excited end and go up (not illustrating among the figure).
When ink-jet printer by described exciter response analog circuit be excited to hold the additional incentive signal time, described switch module 1 and switch module 2 are according to the change in voltage conducting in the pumping signal and end, guarantee a switch module conducting at one time, another switch module ends, switch module through conducting has the conduction voltage drop generation, but because the influence for entire circuit of this conduction voltage drop is very little, this conduction voltage drop can be ignored under perfect condition, and the switch module that so just makes the voltage of voltage reference points of positive anti-polarity circuit be approximately equal to by conducting is communicated with the voltage of being excited to hold.
Figure 15 is structure one schematic diagram of switch module provided by the invention, as shown in the figure, switch module is made up of field effect transistor, the input of field effect transistor wherein, promptly the drain electrode be connected to the exciter response analog circuit wherein one be excited the end, output, promptly source electrode is connected on the voltage reference points of positive anti-polarity circuit, control end, promptly grid be connected to the exciter response analog circuit another be excited end.
Particularly, when two switch module Q1 and Q2 were a N type field effect transistor, the drain electrode of N type field effect transistor was as the input SW1 of switch module, and source electrode is as the output SW2 of switch module, grid is as the control end SW3 of switch module, is excited a P11 and P12 to be used for the additional incentive signal.When being excited a P11 input low-voltage, when being excited some P12 input high voltage, between the source electrode and substrate of N type field effect transistor Q1, all have the pn knot between drain electrode and substrate, and source electrode and substrate connect together, so be equivalent to exist between source electrode and drain electrode the pn knot, conduction voltage drop is looked the difference of pn knot and difference, and silicone tube is about 0.7, and germanium tube is about 0.3.Grid voltage because of N type field effect transistor Q1 is higher than source voltage again, field effect transistor Q1 conducting, and the PN junction between the source electrode of field effect transistor Q2 and the drain electrode oppositely ends.The grid voltage of field effect transistor Q2 is lower than the voltage of source electrode, and field effect transistor Q2 ends, so the voltage reference points of positive anti-polarity circuit is communicated with and is excited a P11.When being excited a P11 is high voltage, and is excited a P12 when being low-voltage, and field effect transistor Q1 ends, and field effect transistor Q2 conducting makes the voltage reference points of positive anti-polarity circuit be communicated with to be excited a P12.
In the present invention, switch module can also be made up of a plurality of field effect transistor serial or parallel connections, shown in Figure 16 (a), it is the switch module that the field effect transistor of two N types composes in parallel, promptly the source electrode of two field effect transistor is connected to each other, the drain electrode of two field effect transistor is connected to each other, and the grid of two field effect transistor is connected to each other; Shown in Figure 16 (b), be the switch module that the field effect transistor of two N types is composed in series, after promptly the grid of two field effect transistor was connected to each other, the drain electrode of a field effect transistor was connected with the source electrode of another field effect transistor; Shown in Figure 16 (c), be the switch module of P type field effect transistor and N type field effect transistor mixing composition, wherein, the source electrode of N type field effect transistor is connected with the grid of P type field effect transistor, and the grid of P type field effect transistor is connected with the source electrode of N type field effect transistor.Certainly, also have other compound mode to constitute switch module, just for example understand no longer one by one here.
In addition; for the protection switch module not breakdown; such as not breakdown when switch module is field effect transistor; can also add protective circuit for switch module; such as current-limiting resistance, protection diode etc., shown in Figure 17 (a), current-limiting resistance R1, current-limiting resistance R2 and current-limiting resistance R3 have been added respectively at source electrode, the drain and gate of field effect transistor; shown in Figure 17 (b), between the grid of field effect transistor and source electrode, added protection diode D1.
In the present invention, switch module can also adopt P type field effect transistor to realize, does not limit here.
Figure 18 is exciter response analogy method two flow charts that are applied on the printer provided by the invention, increase the control of Electric potentials module in the positive anti-polarity circuit in the exciter response analog circuit that is provided with, this control of Electric potentials module is embedded in the exciter response analog circuit, append to the current potential of the voltage reference points in the positive anti-polarity circuit of pumping signal adjustment at exciter response analog circuit two ends according to ink-jet printer, wherein end in voltage reference points and the exciter response analog circuit two ends is communicated with, and its concrete steps are:
Step 1604, ink-jet printer test and excitation signal obtain exciter response under reversed polarity through this circuit, comprising: resonance characteristic under the reversed polarity and charge-discharge characteristic;
After the resonance characteristic of the exciter response that step 1805, ink-jet printer obtain test and the exciter response of charge-discharge characteristic and setting are complementary, determine whether to continue to print or/and when the matching result that obtains is represented ink cartridge low in the print cartridge, notify the user according to the matching result that obtains.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (15)
1. exciter response analog circuit that is applied on the printer, comprise oscillating circuit, resistance-capacitance network and positive anti-polarity circuit, wherein, described oscillating circuit parallel connection, connect or be embedded into resistance-capacitance network, positive anti-polarity circuit parallel connection, connect or be embedded in the resistance-capacitance network, or/and oscillating circuit is in parallel or the positive anti-polarity circuit of connecting, it is characterized in that, described positive anti-polarity circuit comprises isolated gate FET, wherein
The ink-jet printer test has the pumping signal of opposed polarity through described exciter response analog circuit, obtains different resonance characteristics and different charge-discharge characteristics that printer sets.
2. circuit as claimed in claim 1, it is characterized in that, also comprise nonlinear circuit, in parallel, connect or be embedded in the resistance-capacitance network, be used for when ink-jet printer be the additional different voltage differences of described exciter response analog circuit discharge and recharge pumping signal the time, obtain the charge-discharge characteristic of the exciter response that ink-jet printer sets by described exciter response analog circuit.
3. circuit as claimed in claim 1 is characterized in that, described positive anti-polarity circuit adopts one or more isolated gate FETs to form, when positive anti-polarity circuit adopts a plurality of isolated gate FET, and the in parallel or series connection of described a plurality of isolated gate FETs.
4. as claim 1,2 or 3 described circuit, it is characterized in that described positive anti-polarity circuit also comprises one or more capacitance-resistance adjustment modules, be connected on respectively on the source electrode or drain electrode of described isolated gate FET;
Perhaps described resistance-capacitance network comprises one or more capacitance-resistance adjustment modules, is connected on respectively on the source electrode or drain electrode of described isolated gate FET.
5. circuit as claimed in claim 4 is characterized in that, described serial or parallel connection is similar and different in the capacitance-resistance adjustment module of different isolated gate FETs.
6. as claim 1,2 or 3 described circuit, it is characterized in that described isolated gate FET is P type or N type, during for the N type, its substrate connects electronegative potential, and during for the P type, its substrate connects high potential.
7. as claim 1,2 or 3 described circuit, it is characterized in that the substrate of described isolated gate FET is unsettled.
8. as claim 1,2 or 3 described circuit, it is characterized in that, also comprise the control of Electric potentials module, be used for adjusting the current potential of the voltage reference points of described positive anti-polarity circuit, the wherein end in voltage reference points and the exciter response analog circuit two ends is communicated with according to the pumping signal that ink-jet printer appends to described exciter response analog circuit two ends.
9. circuit as claimed in claim 8, it is characterized in that, when described positive anti-polarity circuit adopts one or more isolated gate FETs to form, voltage reference points in the described positive anti-polarity circuit is the substrate of isolated gate FET, when described isolated gate FET is the N type, make its substrate connect electronegative potential by the control of Electric potentials module, during for the P type, make its substrate connect high potential by the control of Electric potentials module.
10. exciter response analog circuit that is applied on the printer, comprise oscillating circuit, resistance-capacitance network and positive anti-polarity circuit, wherein, described oscillating circuit parallel connection, series connection or be embedded into resistance-capacitance network, positive anti-polarity circuit parallel connection, the series connection or be embedded in the resistance-capacitance network, or/and oscillating circuit is in parallel or the positive anti-polarity circuit of connecting, it is characterized in that, also comprise the control of Electric potentials module, append to the current potential of the voltage reference points in the positive anti-polarity circuit of pumping signal adjustment at exciter response analog circuit two ends according to ink-jet printer, the wherein end in voltage reference points and the exciter response analog circuit two ends is communicated with.
11. circuit as claimed in claim 10, it is characterized in that, also comprise nonlinear circuit, in parallel, connect or be embedded in the resistance-capacitance network, be used for when ink-jet printer be the additional different voltage differences of described exciter response analog circuit discharge and recharge pumping signal the time, obtain the charge-discharge characteristic of the exciter response that ink-jet printer sets by described exciter response analog circuit.
12. as claim 10 or 11 described circuit, it is characterized in that, described control of Electric potentials module is made up of two switch modules, the input of each switch module be connected respectively to the exciter response analog circuit wherein one be excited the end on, the output of each switch module is connected on the voltage reference points of positive anti-polarity circuit, the control end of each switch module be connected to the exciter response analog circuit another be excited on the end.
13. circuit as claimed in claim 12 is characterized in that, described switch module is made up of one or more field effect transistor, when described field effect transistor is a plurality of, in parallel or series connection, the drain electrode of field effect transistor wherein is an input, grid is a control end, and source electrode is an output.
14. circuit as claimed in claim 12 is characterized in that, described control of Electric potentials module also comprises protective circuit, is used for the protection switch module.
15. one kind is utilized claim 1 or the exciter response analogy method of the described circuit application of claim 10 on printer, it is characterized in that this method comprises:
Ink-jet printer is the additional positive incentive signal of exciter response analog circuit;
Ink-jet printer test and excitation signal obtains exciter response under positive polarity through this circuit, comprising: resonance characteristic under the positive polarity and charge-discharge characteristic;
Ink-jet printer is the additional reverse energization signal of exciter response analog circuit;
Ink-jet printer test and excitation signal obtains exciter response under reversed polarity through this circuit, comprising: resonance characteristic under the reversed polarity and charge-discharge characteristic;
After the resonance characteristic of the exciter response that ink-jet printer obtains test and the exciter response of charge-discharge characteristic and setting are complementary, determine whether to continue to print or/and when the matching result that obtains is represented ink cartridge low in the print cartridge, notify the user according to the matching result that obtains.
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| CN2010102546680A CN101944879B (en) | 2010-08-13 | 2010-08-13 | Exciter response mimic circuit and exciter response simulation method applied to printer |
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| CN2010102546680A CN101944879B (en) | 2010-08-13 | 2010-08-13 | Exciter response mimic circuit and exciter response simulation method applied to printer |
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| CN101073948A (en) * | 2006-05-15 | 2007-11-21 | 精工爱普生株式会社 | Printing apparatus and method for detecting amount of printing material |
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Address after: Floor 7, Building 04, No. 63, Mingzhu North Road, Xiangzhou District, Zhuhai City, Guangdong Province, 519000 Patentee after: Jihai Microelectronics Co.,Ltd. Address before: Floor 7, Building 04, No. 63, Mingzhu North Road, Xiangzhou District, Zhuhai City, Guangdong Province, 519000 Patentee before: APEX MICROELECTRONICS Co.,Ltd. |