CN209345122U - Power-failure memory protective device and household electrical appliance - Google Patents
Power-failure memory protective device and household electrical appliance Download PDFInfo
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- CN209345122U CN209345122U CN201822246661.9U CN201822246661U CN209345122U CN 209345122 U CN209345122 U CN 209345122U CN 201822246661 U CN201822246661 U CN 201822246661U CN 209345122 U CN209345122 U CN 209345122U
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Abstract
The utility model discloses a kind of power-failure memory protective device and household electrical appliance, wherein device includes: powder down memory circuit, and powder down memory circuit is connected with the control unit of household electrical appliance, and powder down memory circuit is powered in power supply power down to control unit；Power down time analog circuit, power down time analog circuit are connected with control unit, and power down time analog circuit includes first capacitor, the power down time that power down time analog circuit passes through the charge and discharge electrical analogue power supply of first capacitor.Thus, pass through the power down time of the charge and discharge electrical analogue power supply of the first capacitor of power down time analog circuit, and it is powered in power supply power down to control unit by powder down memory circuit, to, realize power-failure memory function, and the status function data of household electrical appliance are saved and restored within the scope of required time, and low cost, small size, versatility are high.
Description
Technical field
The utility model relates to electronic circuit technology field, in particular to a kind of power-failure memory protective device and a kind of household
Electric appliance.
Background technique
Relevant household electrical appliance have the function of power-failure memory mostly, to facilitate user can inquiry operation history and recording equipment
Operational data.In the related art, it is powered using cell apparatus to single-chip microcontroller when household electrical appliance power down, single-chip microcontroller record and storage
Equipment current data, when external power supply restores electricity, single-chip microcontroller executes the device history data before restoring power down, to realize
Electric memory function.
But the relevant technologies have problems in that, cell apparatus scheme it is at high cost, and be limited by assembling structure,
Warm and humid, manufacturing process cost of use environment etc., it is portable poor.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of power-failure memory protective device with first novel purpose, can be realized power-failure memory function, and required
The status function data of household electrical appliance are saved and restored in time range.
Second purpose of the utility model is to propose a kind of household electrical appliance.
In order to achieve the above objectives, the power-failure memory protective device that the utility model first aspect proposes includes: power-failure memory
Circuit, the powder down memory circuit are connected with the control unit of household electrical appliance, and the powder down memory circuit is in power supply power down
When give described control unit power supply；Power down time analog circuit, the power down time analog circuit are connected with described control unit,
The power down time analog circuit includes first capacitor, the charge and discharge that the power down time analog circuit passes through the first capacitor
Simulate the power down time of the power supply.
Power-failure memory protective device according to the present utility model, passes through the charge and discharge of the first capacitor of power down time analog circuit
The power down time of electrical analogue power supply, and powered in power supply power down to control unit by powder down memory circuit, from
And can be realized power-failure memory function, and within the scope of required time to the status function data of household electrical appliance carry out save with
Restore, and low cost, small size, versatility are high.
In addition, can also have following additional technology according to the utility model power-failure memory protective device set forth above
Feature:
In some instances, the power down time analog circuit further include: charge circuit, the first end of the charge circuit
It is connected with the power supply, the second end of the charge circuit is connected with one end of the first capacitor, the charge circuit
Third end be connected with described control unit；Discharge loop, one end phase of one end of the discharge loop and the first capacitor
Even, the other end of the discharge loop is connected and is grounded with the other end of the first capacitor.
In some instances, the charge circuit includes: first resistor, one end of the first resistor and power supply electricity
Source is connected；First diode, the anode of the first diode are connected with the other end of the first resistor, the one or two pole
The cathode of pipe is connected with one end of the first capacitor；Second resistance, one end of the second resistance and the first diode
Anode be connected, the other end of the second resistance is connected with the voltage sampling port of described control unit.
In some instances, the discharge loop includes: 3rd resistor, one end of the 3rd resistor and first electricity
One end of appearance is connected；One end of 4th resistance, the 4th resistance is connected with the other end of the 3rd resistor, the 4th electricity
The other end of resistance is connected and is grounded with the other end of the first capacitor.
In some instances, the powder down memory circuit includes: power down detecting unit, one end of the power down detecting unit
It is connected with the power supply, the other end of the power down detecting unit is connected with the power down sense terminal of described control unit；Every
From unit, the anode of the isolated location is connected with the power supply, the cathode and described control unit of the isolated location
Feeder ear be connected；Power down power supply unit, the power down power supply unit are connected with the feeder ear of described control unit.
In some instances, the power down detecting unit includes: the 5th resistance, one end of the 5th resistance and the confession
Power supply is connected, and the other end of the 5th resistance is connected with the power down sense terminal of described control unit；Second capacitor, described
One end of two capacitors is connected with the power supply, the other end ground connection of second capacitor.
In some instances, the power down detecting unit further include: third capacitor, the third capacitor and second electricity
Appearance is connected in parallel, and the third capacitor is electrolytic capacitor.
In some instances, the isolated location includes: the second diode, the anode of second diode and the confession
Power supply is connected, and the cathode of second diode is connected by the 6th resistance with the feeder ear of described control unit.
In some instances, the power down power supply unit includes: the 4th capacitor, one end of the 4th capacitor and described the
One end of six resistance is connected, the other end ground connection of the 4th capacitor；5th capacitor, one end of the 5th capacitor and described the
The other end of six resistance is connected, the other end ground connection of the 5th capacitor.
In order to achieve the above objectives, the household electrical appliance that the utility model second aspect proposes include: above-mentioned power-failure memory protection
Device, and, the control unit being connected with the power-failure memory protective device.
According to the utility model proposes household electrical appliance power down time mould is passed through using above-mentioned power-failure memory protective device
The power down time of the charge and discharge electrical analogue power supply of the first capacitor of quasi- circuit, and fallen by powder down memory circuit in power supply
It powers when electric to control unit, thus, it is possible to realize power-failure memory function, and to the shape of household electrical appliance within the scope of required time
State performance data is saved and is restored, and low cost, small size, versatility are high.
The additional aspect of the utility model and advantage will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
Fig. 1 is the block diagram of the power-failure memory protective device proposed according to the utility model embodiment；
Fig. 2 is the circuit diagram of the power-failure memory protective device proposed according to one specific embodiment of the utility model；
Fig. 3 is the block diagram of the household electrical appliance proposed according to the utility model embodiment.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
Below with reference to the accompanying drawings the power-failure memory protective device and household electrical appliance of the utility model described.
Fig. 1 is the block diagram of the power-failure memory protective device proposed according to the utility model embodiment.
As shown in Figure 1, power-failure memory protective device 100 includes: powder down memory circuit 1 and power down time analog circuit 2.
Specifically, powder down memory circuit 1 is connected with the control unit 3 of household electrical appliance, and powder down memory circuit 1 is in power supply
It powers when VCC (such as+5V voltage) power down to control unit 3；Power down time analog circuit 2 is connected with control unit 3, when power down
Between analog circuit 2 include first capacitor C1, power down time analog circuit 2 passes through the charge and discharge electrical analogue power supply of first capacitor C1
The power down time of VCC.
It is understood that powder down memory circuit 1 maintains to supply to such as single-chip microcontroller of control unit 3 when power supply VCC power down
Electricity, the power down time that power down time analog circuit 2 passes through the charge and discharge electrical analogue power supply VCC of first capacitor C1, wherein power down
The residual voltage value of time simulation circuit 2 reduces with the increase of the power down time of power supply VCC.Powder down memory circuit 1
Feeder ear be connected with power supply VCC, control unit 3 by detecting powder down memory circuit 1 feeder ear power-off signal, into
Enter power down process program, saves the performance data of equipment current state and the residual voltage value of power down time analog circuit 2.
When power supply restores electricity, control unit 3 by detection power down time analog circuit 2 residual voltage value with
The voltage value saved when power down is compared, and calculates preservation when power down time analog circuit 2 charges to power down from residual voltage value
Voltage value time, to determine power down time, and judge whether power down time is greater than default power down time, if it is less than or wait
In default power down time, then in the range of default power down time, restore status function data when power down.
As a result, by the power down time of the charge and discharge electrical analogue power supply of the first capacitor of power down time analog circuit, and
It is powered in power supply power down to control unit by powder down memory circuit, can be realized power-failure memory function, and required
The status function data of household electrical appliance are saved and restored in time range, and low cost, small size, versatility are high.
Further, as shown in Fig. 2, power down time analog circuit 2 further include: charge circuit 21 and discharge loop 22.
Wherein, the first end of charge circuit 21 is connected with power supply VCC, the second end and first capacitor of charge circuit 21
One end of C1 is connected, and the third end of charge circuit 21 is connected with control unit 3；One end of discharge loop 22 is with first capacitor C1's
One end is connected, and the other end of discharge loop 22 is connected and is grounded with the other end of first capacitor C1.
That is, power supply VCC passes through charge circuit 21 to first capacitor when power supply VCC normal power supply
C1 charging；When power supply VCC power down, first capacitor C1 is discharged by discharge loop 22, thus, pass through first capacitor C1's
The power down time of charge and discharge electrical analogue power supply VCC.
It is understood that after 3 power-off reset of power down time, that is, control unit of power supply VCC, first capacitor C1's
The time of voltage when voltage charges to first capacitor C1 power down.
Further, as shown in Fig. 2, charge circuit 21 further include: first resistor R1, first diode D1 and second resistance
R2。
Specifically, one end of first resistor R1 is connected with power supply VCC；The anode and first resistor of first diode D1
The other end of R1 is connected, and the cathode of first diode D1 is connected with one end of first capacitor C1；One end of second resistance R2 and the
The anode of one diode D1 is connected, and the other end of second resistance R2 is connected with the voltage sampling port a of control unit 3.
That is, power supply VCC passes through first resistor R1, first diode when power supply VCC normal power supply
D1 is connected with first capacitor C1, at this point, first diode D1 is connected, power supply VCC charges to first capacitor C1, in addition, control
The voltage sampling port a of unit 3 processed is connected by second resistance R2 with first capacitor C1, to sample the voltage of first capacitor C1.
Further, as shown in Fig. 2, discharge loop 22 includes: 3rd resistor R3 and the 4th resistance R4.
Specifically, one end of 3rd resistor R3 is connected with one end of first capacitor C1；One end of 4th resistance R4 and third
The other end of resistance R3 is connected, and the other end of the 4th resistance R4 is connected and is grounded with the other end of first capacitor C1.
That is, first capacitor C1 and 3rd resistor R3 and the 4th resistance R4 is formed into a loop, when power supply VCC power down
When, first capacitor C1 is discharged by 3rd resistor R3 and the 4th resistance R4.
Further, as shown in Fig. 2, powder down memory circuit 1 includes: power down detecting unit 11, isolated location 12 and power down
Power supply unit 13.
Specifically, one end of power down detecting unit 11 is connected with power supply VCC, the other end of power down detecting unit 11 with
The power down sense terminal b of control unit 3 is connected；The anode of isolated location 12 is connected with power supply VCC, the cathode of isolated location 12
It is connected with the feeder ear c of control unit 3；Power down power supply unit 13 is connected with the feeder ear c of control unit 3.
That is, the power supply status of power supply VCC can be detected by the power down sense terminal b of control unit 3, wherein
Power supply status includes normal power supply state and power-down state；When the power supply status of power supply VCC is power-down state, control is single
Member 3 detects the power-off signal of feeder ear c by the power down sense terminal b of powder down memory circuit 1, into power down process program, protects
The performance data of equipment current state and the residual voltage value of power down time analog circuit 2 are deposited, meanwhile, set power loss indicator position,
Such as by power loss indicator position position be high level, also, when power supply VCC power down, power supply is isolated in isolated location 12
The feeder ear c of VCC and control unit 3, power down power supply unit 13 are connected with the feeder ear c of control unit 3, to give control unit 3
Power supply.
It should be noted that when power supply VCC restores electricity, power loss indicator position is resetted, such as by power loss indicator position
It is reset to low level.
Further, as shown in Fig. 2, power down detecting unit 11 includes: the 5th resistance R5 and the second capacitor C2.
Specifically, one end of the 5th resistance R5 is connected with power supply VCC, the other end and control unit of the 5th resistance R5
3 power down sense terminal b is connected；One end of second capacitor C2 is connected with power supply VCC, the other end ground connection of the second capacitor C2.
That is, power down sense terminal b phase of the power supply VCC after the 5th resistance R5 partial pressure, with control unit 3
Even, when power down sense terminal b detects high level, determine that power supply VCC is normal power supply state；When power down sense terminal b is detectd
When measuring low level, determine that power supply VCC is power-down state.
Further, as shown in Fig. 2, power down detecting unit 11 further include: third capacitor C3, wherein third capacitor C3 with
Second capacitor C2 is connected in parallel, and third capacitor C3 is electrolytic capacitor.
That is, being connected in parallel by third capacitor C3 and the second capacitor C2, to be filtered.
Further, as shown in Fig. 2, isolated location 12 includes: the second diode D2, wherein the sun of the second diode D2
Pole is connected with power supply VCC, and the cathode of the second diode D2 is connected by the 6th resistance R6 with the feeder ear c of control unit 3.
That is, the second diode D2 conducting, power supply VCC and control are single when power supply VCC normal power supply
The feeder ear c of member 3 is connected, and is powered to control unit 3；When power supply VCC power down, the second diode D2 shutdown is led to
Power down power supply unit 13 is crossed to be powered control unit 3.
Further, as shown in Fig. 2, power down power supply unit 13 includes: the 4th capacitor C4 and the 5th capacitor C5.
Specifically, one end of the 4th capacitor C4 is connected with one end of the 6th resistance R6, the other end ground connection of the 4th capacitor C4；
One end of 5th capacitor C5 is connected with the other end of the 6th resistance R6, the other end ground connection of the 5th capacitor C5.
That is, the second diode D2 conducting, power supply VCC is to the 4th electricity when power supply VCC normal power supply
Hold C4 and the 5th capacitor C5 to charge；When power supply VCC power down, discharged by the 4th capacitor C4 and the 5th capacitor C5,
To be powered to control unit 3.
Specifically, referring to Fig. 2, the working principle of the power-failure memory protective device of the utility model embodiment is as follows:
When power supply VCC normal power supply, power supply VCC passes through first resistor R1, first diode D1 and first
Capacitor C1 is connected, and to charge to first capacitor C1, and passes through the 6th resistance R6 and the 4th capacitor C4 and the 5th capacitor C5 phase
Even, to charge to the 4th capacitor C4 and the 5th capacitor C5, in addition, the voltage sampling port a of control unit 3 also passes through the second electricity
Resistance R2 is connected with first capacitor C1, to sample the voltage of first capacitor C1.
When power supply VCC power down, power supply VCC voltage is reduced, at this point, the second diode D2 is turned off, by the
Four capacitor C4 and the 5th capacitor C5 electric discharge, to be powered to control unit 3, to maintain the normal work of control unit 3.Separately
Outside, first capacitor C1 is discharged by 3rd resistor R3 and the 4th resistance R4.It should be understood that after power supply VCC power down, due to the 4th
Capacitor C4 and the 5th capacitor C5 voltage are greater than third capacitor C3 voltage, and the second diode D2 can't be connected, also, control unit
3 power down sense terminal b detect power supply VCC power supply status be power-down state when, into power down process program, preservation is set
The performance data of standby current state and the residual voltage value of power down time analog circuit 2, meanwhile, set power loss indicator position.
When power supply VCC restores normal power supply, control unit 3 passes through the residual of detection power down time analog circuit 2
Voltage value is compared with the voltage value saved when power down, is calculated power down time analog circuit 2 and is charged to from residual voltage value
The time of the voltage value saved when electric, to determine power down time.
It should be noted that when the power down time of power supply VCC be less than or equal to default power down time (such as 2 hours-
Arbitrary value in 4 hours) when, then power-off reset is carried out according to the performance data of the equipment current state of preservation；Work as power supply
When the power down time of VCC is greater than default power down time, then controls equipment and enter standby mode, do not execute power-off reset.
To sum up, power-failure memory protective device according to the present utility model, passes through the first capacitor of power down time analog circuit
Charge and discharge electrical analogue power supply power down time, and by powder down memory circuit in power supply power down give control unit supply
Electricity thus, it is possible to realize power-failure memory function, and is protected the status function data of household electrical appliance within the scope of required time
It deposits and restores, and low cost, small size, versatility are high.
Fig. 3 is the block diagram according to the household electrical appliance of the utility model embodiment.
As shown in figure 3, household electrical appliance 1000 include above-mentioned power-failure memory protective device 100, and, it is protected with power-failure memory
The connected control unit 3 of device 100.
To sum up, according to the utility model proposes household electrical appliance, using above-mentioned power-failure memory protective device, when passing through power down
Between analog circuit first capacitor charge and discharge electrical analogue power supply power down time, and by powder down memory circuit power supply electricity
It powers when the power down of source to control unit, thus, it is possible to realize power-failure memory function, and to household electrical appliance within the scope of required time
Status function data saved and restored, and low cost, small size, versatility are high.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of power-failure memory protective device characterized by comprising
Powder down memory circuit, the powder down memory circuit are connected with the control unit of household electrical appliance, and the powder down memory circuit exists
It powers when power supply power down to described control unit；
Power down time analog circuit, the power down time analog circuit are connected with described control unit, the power down time simulation
Circuit includes first capacitor, power supply described in charge and discharge electrical analogue of the power down time analog circuit by the first capacitor
Power down time.
2. power-failure memory protective device according to claim 1, which is characterized in that the power down time analog circuit also wraps
It includes:
Charge circuit, the first end of the charge circuit are connected with the power supply, the second end of the charge circuit and institute
The one end for stating first capacitor is connected, and the third end of the charge circuit is connected with described control unit；
Discharge loop, one end of the discharge loop are connected with one end of the first capacitor, the other end of the discharge loop
It is connected and is grounded with the other end of the first capacitor.
3. power-failure memory protective device according to claim 2, which is characterized in that the charge circuit includes:
First resistor, one end of the first resistor are connected with the power supply；
First diode, the anode of the first diode are connected with the other end of the first resistor, the first diode
Cathode be connected with one end of the first capacitor；
Second resistance, one end of the second resistance are connected with the anode of the first diode, the second resistance it is another
End is connected with the voltage sampling port of described control unit.
4. power-failure memory protective device according to claim 2, which is characterized in that the discharge loop includes:
3rd resistor, one end of the 3rd resistor are connected with one end of the first capacitor；
One end of 4th resistance, the 4th resistance is connected with the other end of the 3rd resistor, the 4th resistance it is another
End is connected and is grounded with the other end of the first capacitor.
5. power-failure memory protective device according to claim 1, which is characterized in that the powder down memory circuit includes:
One end of power down detecting unit, the power down detecting unit is connected with the power supply, the power down detecting unit
The other end is connected with the power down sense terminal of described control unit；
The anode of isolated location, the isolated location is connected with the power supply, the cathode of the isolated location and the control
The feeder ear of unit processed is connected；
Power down power supply unit, the power down power supply unit are connected with the feeder ear of described control unit.
6. power-failure memory protective device according to claim 5, which is characterized in that the power down detecting unit includes:
One end of 5th resistance, the 5th resistance is connected with the power supply, the other end of the 5th resistance with it is described
The power down sense terminal of control unit is connected；
One end of second capacitor, second capacitor is connected with the power supply, the other end ground connection of second capacitor.
7. power-failure memory protective device according to claim 6, which is characterized in that the power down detecting unit further include:
Third capacitor, the third capacitor are connected in parallel with second capacitor, and the third capacitor is electrolytic capacitor.
8. power-failure memory protective device according to claim 5, which is characterized in that the isolated location includes:
The anode of second diode, second diode is connected with the power supply, and the cathode of second diode is logical
The 6th resistance is crossed to be connected with the feeder ear of described control unit.
9. power-failure memory protective device according to claim 8, which is characterized in that the power down power supply unit includes:
One end of 4th capacitor, the 4th capacitor is connected with one end of the 6th resistance, the other end of the 4th capacitor
Ground connection；
One end of 5th capacitor, the 5th capacitor is connected with the other end of the 6th resistance, the 5th capacitor it is another
End ground connection.
10. a kind of household electrical appliance characterized by comprising
Power-failure memory protective device according to claim 1 to 9；
The control unit being connected with the power-failure memory protective device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822246661.9U CN209345122U (en) | 2018-12-28 | 2018-12-28 | Power-failure memory protective device and household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822246661.9U CN209345122U (en) | 2018-12-28 | 2018-12-28 | Power-failure memory protective device and household electrical appliance |
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| Publication Number | Publication Date |
|---|---|
| CN209345122U true CN209345122U (en) | 2019-09-03 |
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ID=67760135
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822246661.9U Active CN209345122U (en) | 2018-12-28 | 2018-12-28 | Power-failure memory protective device and household electrical appliance |
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| Country | Link |
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| CN (1) | CN209345122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111124093A (en) * | 2019-12-17 | 2020-05-08 | 中科芯集成电路有限公司 | Time-adjustable power-down data storage circuit and method |
-
2018
- 2018-12-28 CN CN201822246661.9U patent/CN209345122U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111124093A (en) * | 2019-12-17 | 2020-05-08 | 中科芯集成电路有限公司 | Time-adjustable power-down data storage circuit and method |
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