CN104476923A - Consumable chip, consumable container and power supply method of consumable chip storage unit - Google Patents
Consumable chip, consumable container and power supply method of consumable chip storage unit Download PDFInfo
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- CN104476923A CN104476923A CN201510009057.2A CN201510009057A CN104476923A CN 104476923 A CN104476923 A CN 104476923A CN 201510009057 A CN201510009057 A CN 201510009057A CN 104476923 A CN104476923 A CN 104476923A
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Abstract
The invention provides a consumable chip, a consumable container and a power supply method of a consumable chip storage unit. The chip is provided with a substrate, a communication unit and an electronic module electrically connected with the communication unit are arranged on the substrate, the electronic module is provided with the storage unit and a power supply unit supplying power to the storage unit, the power supply unit is provided with a first capacitor and a second capacitor, and the capacitance value of the first capacitor is smaller than that of the second capacitor. The power supply unit is provided with a first switching device connected with the first capacitor in parallel, the first switching device is closed when the consumable chip loses power and the storage unit has no read-write operation, the power supply unit is provided with a second switching device connected with the first capacitor and the second capacitor, and the second switching device is closed when the voltage value of the second capacitor is higher than a threshold value and the storage unit has read-write operation. An ink box chip is arranged on a shell of the consumable container. A circuit is adopted in the power supply method of the consumable chip storage unit to power the storage unit. The transfer requirement of data of the storage unit can be met.
Description
Technical field
The present invention relates to printing field, especially relate to and be a kind ofly arranged on the method for supplying power to of consumable chip on printing consumables and this chip-stored unit, the consumable container of this consumable chip is installed.
Background technology
Printer as common office equipment, for modern office provides great convenience.Existing printer is divided into ink-jet printer and laser printer, and ink-jet printer uses the print cartridge accommodating ink to spray ink as consumable container to paper, to form the word or pattern that need to print on paper; Laser printer then uses the cartridge accommodating carbon dust on medium, form the word or pattern that need to print as consumable container.
See Fig. 1, existing a kind of color inkjet printer has the supporting plate that the ink-jet printer shown in casing 11, Fig. 1 eliminates casing 11.Be provided with the movement 12 of ink-jet printer in casing 11, and be provided with a slide bar, print word car 14 and move back and forth along slide bar under the drive of motor (invisible in Fig. 1).Print in word car 14 and be provided with keyset (invisible in Fig. 1), keyset is communicated with movement 12 by winding displacement 13.
Print on word car 14 and multiple print cartridge 15 is removably installed, in different print cartridge 15, accommodate the ink of different colours.The structure of print cartridge 15 as shown in Figure 2.Print cartridge 15 has housing 16, and housing 16 surrounds the cavity holding ink, and the lower end of cavity is provided with ink outlet port 17, and the ink in cavity is flowed out by ink outlet port 17, and to printing the confession tattooing needle ink supply of word car 14.
The outer wall of print cartridge 15 housing 16 is provided with chip piece 18, and chip 18 has substrate, and the side of substrate is provided with multiple electric contact 19, for being electrically connected with keyset.The opposite side of substrate is provided with the electronic module (invisible in Fig. 2) be electrically connected with electric contact 19.
See Fig. 3, electronic module is provided with control unit 21, memory 22, interface unit 25 and power supply unit 27, wherein interface unit 25 is for being electrically connected with electric contact 19, control unit 21 receives the information from ink-jet printer by interface unit 25, and sends to the information of ink-jet printer to be sent by interface unit 25 by needing.Control unit 21 comprises analog circuit and digital circuit, and analog circuit comprises clock circuit, drive circuit etc. for generation of clock signal, and digital circuit comprises single-chip microcomputer or logic circuit etc.
Memory 22 comprises nonvolatile memory 23 and volatile memory 24, nonvolatile memory 23 is generally EEPROM or FLASH, it stores the information relevant to print cartridge, comprise variable information and fixed information, variable information is the information that can constantly change with printing, as ink surplus, print the information such as duration, print paper quantity, fixed information is the information that can not change with printing, as cartridge model, applicable ink-jet printer model, ink color etc.Volatile memory 24 is the memories such as SRAM, and its read or write speed is very fast, for storing the data that ink-jet printer writes to consumable chip temporarily.After volatile memory 24 power down, its data stored will be lost, and therefore need the data conversion storage stored in time in nonvolatile memory 23 during power down.
Power supply unit 27 is that electric capacity or rechargeable battery etc. are chargeable and have the device of energy storage function, when ink-jet printer is to chip power supply, power supply unit 27 store electrical energy, ink-jet printer stops after chip power supply, power supply unit 27 discharges and powers to control unit 21, memory 22, now, the data conversion storage that volatile memory 24 temporarily stored of control unit 21 is in nonvolatile memory 23.
After print cartridge 15 is installed to the printing word car 14 of ink-jet printer, ink-jet printer powers on to chip 18, and reads the data that are stored in chip 18 memory, judges whether print cartridge 15 model is suitable, residual ink amount whether abundance etc. in print cartridge 15.Only have and judge that print cartridge 15 model is suitable and after having sufficient ink in print cartridge 15, ink-jet printer could perform print job.
Because existing chip needs when power down the electric energy using power supply unit 27 to provide to carry out the unloading of data, and data conversion storage needs certain hour, in data conversion storage process, the voltage that power supply unit 27 exports will constantly reduce, once brownout, just cannot ensure the work of volatile memory 24, have influence on the integrality of unloading data, the situation of loss of data may occur.
In order to improve the reading and writing data speed of memory, more existing ink box chip adopts ferroelectric memory as storage variable information and fixed information, because the reading and writing data speed of ferroelectric memory is high, and data can not be lost after power down, after using ferroelectric memory, ink box chip is without the need to arranging the memories such as EEPROM and RAM.But, because ferroelectric memory production cost is high, use ferroelectric memory also corresponding higher as the ink box chip production cost of memory.
Therefore, notification number is the innovation and creation that the Chinese utility model patent of CN202782180U discloses a kind of " consumable chip and consumable container " by name, and this consumable chip is provided with two electric capacity, and the capacitance of two electric capacity is not identical.After ink-jet printer is powered to ink box chip, the electric capacity that capacitance is less is first recharged, and powers to memory, and the capacitor charging speed that capacitance is larger is slower.After ink-jet printer stopping is powered to ink box chip, the electric capacity that capacitance is larger is used to continue power supply, to meet the requirement of memory data unloading to memory.
But, owing to power supply circuits not being arranged the switching device of control two capacitor charge and discharges, causing the discharge and recharge of two electric capacity uncontrolled, affect the time of the discharge and recharge of two electric capacity, also determining factor with regard to bringing to the power supply of memory.As ink-jet printer just started to power to ink box chip time, first the electric capacity that capacitance is larger charge, and often affects the charge efficiency of the less electric capacity of capacitance, causes the operating voltage of memory too low and affect the read-write operation of memory.
See Fig. 4, existing cartridge has housing 31, and housing 31 surrounds the cavity holding carbon dust, and the outer wall of housing is provided with a chip installation position 32, and chip 33 is installed on chip installation position 32.Similar with the chip of print cartridge, the chip 33 of cartridge also has substrate, and substrate is provided with the electric contact 34 as communication unit, for carrying out exchanges data with laser printer.And, the opposite side of substrate is provided with the electronic module be electrically connected with electric contact 34, electronic module also arranges interface unit, control unit and nonvolatile memory, volatile memory, power supply unit etc., for the same reason, chip 33 also can exist laser printer stop power supply background storage electricity shortage and affect data conversion storage operation problem, affect the printing of laser printer.
In addition, the imaging devices such as existing most of duplicator, facsimile machine or all-in-one are all removably provided with cartridge or carbon starch cylinder as consumable container, consumable container has the cavity holding carbon dust, and chip is set on the outer wall of consumable container, also there is the problem identical with the chip of print cartridge in these chips, namely in the problem of power supply unit to memory supply voltage deficiency.
Summary of the invention
Main purpose of the present invention is to provide a kind ofly guarantees that memory cell is powered stable consumable chip.
Another object of the present invention is to provide the consumable container of the not enough problem of a kind of effective solution consumable chip memory cell supply voltage.
Another object of the present invention is to provide a kind ofly guarantees that consumable chip memory cell is stopped power supply at printer the method for supplying power to of consumable chip memory cell of follow-up write operation of resuming studies.
For realizing above-mentioned main purpose, consumable chip provided by the invention comprises substrate, the electronic module that substrate is provided with communication unit and is electrically connected with communication unit, the power supply unit that electronic module has memory cell and powers to memory cell, power supply unit is provided with the first electric capacity and the second electric capacity, the capacitance of the first electric capacity is less than the capacitance of the second electric capacity, wherein, power supply unit is provided with the first switching device with the first Capacitance parallel connection, first switching device in consumable chip power down and memory cell without closed during read-write operation, power supply unit is provided with the second switch device of connection first electric capacity and the second electric capacity, second switch device the magnitude of voltage of the second electric capacity higher than threshold value and memory cell has a read-write operation time closed.
From such scheme, due to the first switching device just in consumable chip power down and memory cell without closed during read-write operation, namely disconnect all the time in consumable chip power up, namely can at once to the first capacitor charging after such consumable chip powers on, first electric capacity can charge complete at short notice and to memory cell electric discharge, meet the job requirement of memory cell.
In addition, second switch device the magnitude of voltage of the second electric capacity higher than threshold value and memory cell has a read-write operation time closed, can guarantee like this to stop powering and memory cell still needs to guarantee when carrying out reading and writing data have sufficient electric power supply to consumable chip at printer, meet the data conversion storage requirement of memory cell, avoid memory cell brownout and affect the operation of data conversion storage after printer is stopped power supply.
A preferred scheme is, power supply unit is also provided with the 3rd switching device be connected with the second electric capacity, the 3rd switching device in consumable chip power up or after powering on memory cell have during read-write operation and disconnect.
Due to the 3rd switching device in consumable chip power up or after powering on memory cell have during read-write operation and disconnect, in consumable chip power up, the second electric capacity can not charge, avoid the charging interval affecting the first electric capacity, avoid affecting the data conversion storage process under printer power-up state simultaneously.
Further scheme is, the second electric capacity is connected to the power contact of consumable chip by current-limiting resistance.
Visible, through the metering function of current-limiting resistance, the charging current of the second electric capacity can be reduced, guarantee the charging voltage of the first electric capacity, the first electric capacity be charged at short notice complete.
For realizing another above-mentioned object, consumable container provided by the invention comprises housing, housing surrounds the cavity holding consumptive material, cavity lower end is provided with consumptive material outlet, the outer wall of housing is provided with consumable chip, consumable chip has substrate, the electronic module that substrate is provided with communication unit and is electrically connected with communication unit, the power supply unit that electronic module has memory cell and powers to memory cell, power supply unit is provided with the first electric capacity and the second electric capacity, the capacitance of the first electric capacity is less than the capacitance of the second electric capacity, wherein, power supply unit is provided with the first switching device with the first Capacitance parallel connection, first switching device in consumable chip power down and memory cell without closed during read-write operation, power supply unit is provided with the second switch device of connection first electric capacity and the second electric capacity, second switch device the magnitude of voltage of the second electric capacity higher than threshold value and memory cell has a read-write operation time closed.
From such scheme, by controlling the opening/closing time of the first switching device and second switch device, the discharge and recharge time of the first electric capacity and the second electric capacity can be controlled, namely control the charging at once after consumable chip powers on of the first electric capacity, the second electric capacity, can by the first capacitances to supply power after guaranteeing the power down of consumable chip short time with less current charges, and in data conversion storage process, by the second capacitances to supply power, the data conversion storage operation of memory cell can be guaranteed like this, guarantee that data can unloading completely.
For realizing an above-mentioned object again, in the method for supplying power to of consumable chip memory cell provided by the invention, the power supply unit of consumable chip is powered to the memory cell of consumable chip, power supply unit has the first electric capacity and the second electric capacity, the capacitance of the first electric capacity is less than the capacitance of the second electric capacity, and power supply unit is provided with and the first switching device of the first Capacitance parallel connection and the second switch device being connected the first electric capacity and the second electric capacity, the method comprises: after consumable chip powers on, first switching device disconnects, and the first capacitor charging is also powered to memory cell; The magnitude of voltage of the second electric capacity higher than threshold value and memory cell has a read-write operation time, second switch device closes, and the second electric capacity is powered to memory cell; In consumable chip power down and memory cell without read-write operation time, the first switching device closes and discharges.
From such scheme, the discharge and recharge time of the first electric capacity and the second electric capacity can be controlled by the opening and closing operations of two switching devices, and then when guaranteeing that printer powers on, the first electric capacity is powered fast, provide chip normally to work required burning voltage; By the second capacitances to supply power after consumable chip power down, meet the requirement of data conversion storage.
A preferred scheme is, in consumable chip power down and memory cell without read-write operation time, second switch device disconnect.
As can be seen here, after second switch device disconnects, the second electric capacity can not discharge to memory cell, avoids the electricity of the second electric capacity to be exhausted too early, meets the needs that memory cell works long hours.
Accompanying drawing explanation
Fig. 1 is the structure chart of existing a kind of ink-jet printer.
Fig. 2 is the schematic enlarged-scale view of existing print cartridge.
Fig. 3 is the electric theory diagram of existing ink box chip electronic module.
Fig. 4 is the STRUCTURE DECOMPOSITION figure of existing a kind of cartridge.
Fig. 5 is the electrical schematic diagram that in consumable chip embodiment of the present invention, power supply unit is connected with ink-jet printer.
Fig. 6 is the equivalent circuit diagram of power supply unit after chip stops read-write operation in consumable chip embodiment of the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
Detailed description of the invention
Consumable container of the present invention both can be mounted in the print cartridge on ink-jet printer, and also can be mounted in the cartridge on laser printer or duplicator, facsimile machine, all-in-one or carbon starch cylinder, below in conjunction with each embodiment, the present invention is described in detail.
Consumable chip embodiment:
The consumable chip of the present embodiment is the ink box chip being arranged on cartridge of ink-jet printer, and it has one piece of substrate, and the one side of substrate is provided with the multiple electric contacts as communication unit, for being connected with the electric contact of ink-jet printer.Certainly, if between ink-jet printer and consumable chip be radio communication, then communication unit is the antenna for radio communication.The electronic module be connected with electric contact is provided with, the power supply unit that electronic module has memory and powers to memory at the another side of substrate.In the present embodiment, memory cell is the memory be arranged in electronic module, and certainly, memory cell also can be the memory cell of the controllers such as single-chip microcomputer self.
The memory of the present embodiment comprises nonvolatile memory and volatile memory, nonvolatile memory is EEPROM(electrically erasable read-only memory) or FLASH(flash memory) etc., it stores the relevant data of print cartridge and ink, to comprise in cartridge model, applicable ink-jet printer model, print cartridge containing ink color, print cartridge ink surplus etc.The controller of electronic module can export order such as order DIN/DOUT and read write command WR/RD etc. to nonvolatile memory OPADD ADDRESS, numeral write.
Volatile memory is the memories such as SRAM, and its reading and writing data data are very fast, but the data stored after power down will be lost, for storing the data that ink-jet printer writes to chip temporarily.Due to the speed of ink-jet printer write data, if digital circuit is write direct in nonvolatile memory after receiving data, may because causing data to write completely too slowly to nonvolatile memory write data speed, therefore after digital circuit receives the data needing to be written to nonvolatile memory, first will the data of write be needed to be written in volatile memory, after ink-jet printer stops carrying out read-write operation to chip, the data being stored in volatile memory write back in nonvolatile memory by controller.
Visible, after ink-jet printer sends read-write operation instruction to memory, the controller of ink box chip also sends read write command to memory immediately, received data is stored in volatile memory.And, when ink-jet printer stops to consumable chip write data, as controller judges to still have the data not writing nonvolatile memory in volatile memory, still send memory read/write instruction to memory, will the data conversion storage of volatile memory be stored in nonvolatile memory.
See Fig. 5, power supply unit has two electric capacity C1, C2, and wherein the capacitance of electric capacity C1 is less than the capacitance of electric capacity C2, and electric capacity C1 powers to memory.Power supply unit is also provided with three switching devices, switching device S1, S2, S3 respectively, in the present embodiment, three switching devices S1, S2, S3 are FET, and switching device S1 is in parallel with electric capacity C1, switching device S2 is connected between electric capacity C1 and electric capacity C2, and one end of switching device S3 is connected with electric capacity C2, and the other end accepts the power supply that printer 40 provides.
Between electric capacity C1 and the power contact of printer 40, be connected with isolating diode D2, the anode of isolating diode D2 is connected to the power contact of printer 40, and negative electrode is connected with electric capacity C1.Be connected with current-limiting resistance R1 and isolating diode D1 between the power contact of printer 40 and switching device S3 in turn, the anode of isolating diode D1 is connected to current-limiting resistance R1, and negative electrode is connected with switching device S3.
Because three switching devices S1, S2, S3 are FET, can be closed by control and disconnect, therefore need to arrange corresponding control circuit to control the break-make of three switching devices S1, S2, S3.
Whether, in the present embodiment, power supply unit is provided with printer power-fail detection circuit 41, stop powering to ink box chip for detecting printer 40.Preferably, printer power-fail detection circuit 41 detects the voltage of two data signal lines on printer and ink box chip communication bus, as judged, the voltage of two data signal lines is zero, then judge that printer stops powering to ink box chip, namely ink box chip power down, exports high level signal to door U2.
In addition, power supply unit is provided with memory read/write instruction decision circuitry 44, judge whether the controller of ink box chip sends read write command to memory, namely judge whether memory performs read-write operation, as judged, controller sends read write command to memory, then export high level signal to door U1 or door U3.In addition, memory exports high level signal when judging that memory does not have read-write operation to door U2 without read write command decision circuitry 48.
When printer power-fail detection circuit 41 and memory read/write instruction decision circuitry 44 all export high level, export high level immediately with door U2.See Fig. 5, switching device S1 is NMOS tube, and switching device S2 is PMOS, and therefore, when exporting high level with door U2, switching device S1 closes, but switching device S2 disconnects.
In addition, power supply unit is also provided with voltage detecting circuit 43, for the voltage of Detection capacitance C2 whether higher than threshold value, therefore, voltage detecting circuit 43 can be made up of a voltage comparator and voltage source, and voltage comparator is for judging that the magnitude of voltage of electric capacity C2 is whether higher than the voltage of voltage source, as the voltage higher than voltage source, represent that the magnitude of voltage of electric capacity C2 is higher than threshold value, voltage detecting circuit 43 exports high level signal to door U1.Certainly, voltage detecting circuit 43 also can be the voltage detecting circuit that powers on, and as power on detector etc., this kind of circuit does not need reference voltage, is similar to por circuit.
When memory read/write instruction decision circuitry 44 and voltage detecting circuit 43 all export high level signal, export high level signal with door U1, switching device S2 closes, and electric capacity C2 discharges to electric capacity C1, and powers to memory thus.
Whether in addition, power supply unit is also provided with chip power on detection circuit 42, be in power up for detection chip.The said chip of the application is in power up and refers to that printer starts to power to ink box chip, and voltage is in uphill process, and power down refers to that printer stops powering to ink box chip, the power work that ink box chip relies on power supply unit to provide.Whether chip power on detection circuit 42 detection chip supply voltage reaches setting threshold value to judge whether ink box chip is in power up.
As memory read/write instruction decision circuitry 44 or any one output high level signal of chip power on detection circuit 42, or door U3 exports high level signal immediately, and therefore switching device S3 disconnects immediately.Because switching device S3 is PMOS, therefore when or door U3 export high level time, switching device S3 disconnects, and printer 40 can not charge to electric capacity C2.
Consumable chip memory method of supplying power to embodiment:
As shown in figs. 4 and 5, after printer starts to power to ink box chip, now ink box chip is in power up, the instruction read and write data can not be sent at once, therefore memory read/write instruction decision circuitry 44 output low level signal, the now equal output low level signal with door U1, U2, or door U3 exports high level signal, switching device S1, S2, S3 all disconnect, and the voltage that printer 40 provides is only used to electric capacity C1 and charges.
After ink box chip powers on, chip power on detection circuit 42 judges that ink box chip is not in power up, then output low level signal, or door U3 output low level signal, and switching device S3 closes, and printer charges to electric capacity C2 simultaneously.Now, even if the printer short time stops powering to ink box chip, due to electric capacity C1 charging within a short period of time, therefore electric capacity C1 to discharge the loss of data avoiding memory temporarily to store to memory.
After electric capacity C2 charges a period of time, its magnitude of voltage is higher than threshold value, voltage detecting circuit 43 exports high level signal, and printer 40 sends read write command to memory, and the controller of ink box chip also sends read write command to memory, memory read/write instruction decision circuitry 44 exports high level signal immediately, now export high level with door U1, switching device S2 conducting, electric capacity C2 discharges to electric capacity C1, electric capacity C1 provide voltage to memory, meets the job requirement of memory.
When printer 40 stops powering to ink box chip, printer power-fail detection circuit 41 exports high level signal, as now memory still needs to carry out read-write operation, namely memory is without read write command decision circuitry 48 output low level signal, then with door U2 also output low level signal, switching device S1 disconnects, and electric capacity C1 continues to power to memory, to meet the work of memory.
Stop to chip power supply and after memory read/write end of operation at printer, namely when printer power-fail detection circuit 41 and memory all export high level signal without read write command decision circuitry 48, high level signal is exported with door U2, switching device S1 closes, electric capacity C1 is discharged by switching device S1, so that the timely charging of electric capacity C1 when ink box chip powers on again.
Further, after ink box chip powers on, when memory is performing read-write operation, when namely memory read/write instruction decision circuitry 44 exports high level, switching device S3 disconnects, and to avoid electric capacity C2 over-discharge, saves the power consumption of electric capacity C2.
Visible, by the discharge and recharge of three switching device S1, S2, S3 difference control capacitance C1, C2, effectively can power to memory, avoid the brownout of memory, guarantee that data can by fully unloading.
Print cartridge embodiment:
The present embodiment has a housing, and housing surrounds the cavity that is held ink, and be provided with the ink outlet port be communicated with cavity in the below of cavity, the ink in cavity flows out by ink outlet port.Further, an outer wall of housing is removably provided with one piece of consumable chip according to the above embodiment of the present invention.
Cartridge embodiment:
The present embodiment has housing, and housing surrounds the cavity holding carbon dust, and one end of cavity is provided with meal outlet, and on the outer wall of housing, removably install one piece of consumable chip as above-described embodiment.
Certainly, above-described embodiment is only the present invention's preferably embodiment, can also have more change during practical application, and such as, use triode to substitute FET as switching device etc., such change can realize object of the present invention equally.
Finally it is emphasized that and the invention is not restricted to above-mentioned embodiment, as the change such as the change of switching device, the change of current resistor resistance also should be included in the protection domain of the claims in the present invention.
Claims (10)
1. consumable chip, comprises
Substrate, the electronic module that described substrate is provided with communication unit and is electrically connected with described communication unit, the power supply unit that described electronic module has memory cell and powers to described memory cell, described power supply unit is provided with the first electric capacity and the second electric capacity, and the capacitance of described first electric capacity is less than the capacitance of described second electric capacity;
It is characterized in that:
Described power supply unit is provided with the first switching device with described first Capacitance parallel connection, described first switching device in described consumable chip power down and described memory cell without closed during read-write operation;
Described power supply unit is provided with the second switch device connecting described first electric capacity and described second electric capacity, described second switch device the magnitude of voltage of described second electric capacity higher than threshold value and described memory cell have during read-write operation and close.
2. consumable chip according to claim 1, is characterized in that:
Described power supply unit is also provided with the 3rd switching device be connected with described second electric capacity, described 3rd switching device in described consumable chip power up or after powering on memory cell have during read-write operation and disconnect.
3. consumable chip according to claim 1 and 2, is characterized in that:
Described second electric capacity is connected to the power contact of described consumable chip by current-limiting resistance.
4. consumable chip according to claim 3, is characterized in that:
Isolating diode is connected with between described second electric capacity and described power contact.
5. consumable container, comprises
Housing, described housing surrounds the cavity holding consumptive material, described cavity lower end is provided with consumptive material outlet, the outer wall of described housing is provided with consumable chip, described consumable chip has substrate, the electronic module that described substrate is provided with communication unit and is electrically connected with described communication unit, the power supply unit that described electronic module has memory cell and powers to described memory cell, described power supply unit is provided with the first electric capacity and the second electric capacity, and the capacitance of described first electric capacity is less than the capacitance of described second electric capacity;
It is characterized in that:
Described power supply unit is provided with the first switching device with described first Capacitance parallel connection, described first switching device in described consumable chip power down and described memory cell without closed during read-write operation;
Described power supply unit is provided with the second switch device connecting described first electric capacity and described second electric capacity, described second switch device the magnitude of voltage of described second electric capacity higher than threshold value and described memory cell have during read-write operation and close.
6. consumable container according to claim 5, is characterized in that:
Described power supply unit is also provided with the 3rd switching device be connected with described second electric capacity, described 3rd switching device in described consumable chip power up or after powering on memory cell have during read-write operation and disconnect.
7. the consumable container according to claim 5 or 6, is characterized in that:
Described second electric capacity is connected to the power contact of described consumable chip by current-limiting resistance.
8. the method for supplying power to of consumable chip memory cell, the power supply unit of described consumable chip is powered to the memory cell of described consumable chip, described power supply unit has the first electric capacity and the second electric capacity, the capacitance of described first electric capacity is less than the capacitance of described second electric capacity, and described power supply unit is provided with and the first switching device of described first Capacitance parallel connection and the second switch device being connected described first electric capacity and described second electric capacity;
It is characterized in that: the method comprises
After described consumable chip powers on, described first switching device disconnects, and described first capacitor charging is also powered to described memory cell;
The magnitude of voltage of described second electric capacity higher than threshold value and described memory cell has a read-write operation time, described second switch device closes, and described second electric capacity is powered to described memory cell;
In described consumable chip power down and described memory cell without read-write operation time, described first switching device closes and discharges.
9. the method for supplying power to of consumable chip memory cell according to claim 8, is characterized in that:
In described consumable chip power down and described memory cell without read-write operation time, described second switch device disconnects.
10. the method for supplying power to of consumable chip memory cell according to claim 8 or claim 9, is characterized in that:
Described power supply unit is also provided with the 3rd switching device be connected with described second electric capacity;
When in described consumable chip power up or after powering on, memory cell has a read-write operation, described 3rd switching device disconnects.
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| CN201510009057.2A CN104476923B (en) | 2015-01-06 | 2015-01-06 | Consumable chip and consumable container, the method for supplying power to of consumable chip memory element |
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| CN201510009057.2A CN104476923B (en) | 2015-01-06 | 2015-01-06 | Consumable chip and consumable container, the method for supplying power to of consumable chip memory element |
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| CN112698784A (en) * | 2019-10-23 | 2021-04-23 | 爱思开海力士有限公司 | Memory system |
| CN114261212A (en) * | 2021-12-28 | 2022-04-01 | 珠海艾派克微电子有限公司 | Chip, consumable cartridge, image forming apparatus, and consumable parameter information processing method |
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