CN109327019A - A kind of circuit board discharge control method, discharge control device and circuit board - Google Patents
A kind of circuit board discharge control method, discharge control device and circuit board Download PDFInfo
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- CN109327019A CN109327019A CN201811208055.6A CN201811208055A CN109327019A CN 109327019 A CN109327019 A CN 109327019A CN 201811208055 A CN201811208055 A CN 201811208055A CN 109327019 A CN109327019 A CN 109327019A
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- circuit board
- threshold value
- supply voltage
- voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
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Abstract
The invention proposes a kind of circuit board discharge control method, discharge control device and circuit boards.Wherein, circuit board discharge control method, comprising: the supply voltage of detection circuit board；When supply voltage is less than first voltage threshold value, the dissipative load of control circuit board is opened.Using technical solution of the present invention, by detecting the variation of supply voltage, the load of cooperation consumption electric energy is to realize that the repid discharge of circuit board can greatly save design and manufacturing cost without increasing hardware circuit.
Description
Technical field
The present invention relates to circuit board technology fields, in particular to a kind of circuit board discharge control method, control of discharge
Device and circuit board.
Background technique
Capacitive load energy storage at work in circuit board, when the power supply of disconnecting circuit plate, the electric energy in capacitive load is outside
It releases, at this point, if circuit board energy storage is more and bleed-off circuit of not design specialized, it is possible to circuit board electric energy be caused to be released
Cross slow, slowly, in the case where spread of voltage, some loads may work abnormal, for example display screen may for voltage decline
It can flash, and the abnormal user of this load can be perceived obviously, be affected user experience, at this time just need electric energy energy
Enough quickly to release, voltage quickly falls to operating voltage or less after power is turned off.
In the related technology, it in order to realize the repid discharge of circuit board, usually solves, that is, reduces from the angle of circuit design
Capacitive load or design current leadage circuit solve the problems, such as this from reducing power storage and accelerating electric energy two angles of releasing,
But aforesaid way can all increase circuit board cost, and must redesign circuit board, can not be applied to solve existing circuit board
Problem.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, one aspect of the present invention is to propose a kind of circuit board discharge control method.
Another aspect of the present invention is to propose a kind of circuit board discharge control device.
Another aspect of the invention is to propose a kind of circuit board.
In view of this, according to an aspect of the present invention, it proposes a kind of circuit board discharge control methods, comprising: detection
The supply voltage of circuit board；When supply voltage is less than first voltage threshold value, the dissipative load of control circuit board is opened.
Circuit board discharge control method provided by the invention, in circuit board operational process, the real time monitoring of main control chip
The variation of main control chip supply voltage.When circuit board disconnects external power supply, the supply voltage of main control chip is gradually reduced, and works as inspection
When measuring voltage and dropping to first voltage threshold value, that is, it is judged to detecting circuit board power down, by execution circuit plate repid discharge journey
Sequence, specific implementation are as follows: (electric energy that the length of time is stored by circuit board is how many and is used within an of short duration time
The speed of the load consumption electric energy of electric discharge determines.The electric energy of storage is more, and dissipative load is smaller, then required discharge time is longer)
One or more dissipative loads on circuit board are opened, load when circuit board power down is increased, extra electric energy is quickly disappeared
It consumes, to realize repid discharge when circuit board power down.Using technical solution of the present invention, by the change for detecting supply voltage
Change, the repid discharge of circuit board is realized in the load of cooperation consumption electric energy, without increasing hardware circuit, can greatly save design and
Manufacturing cost.
Foregoing circuit plate discharge control method according to the present invention, can also have following technical characteristic:
In the above-mentioned technical solutions, it is preferable that before the dissipative load of control circuit board is opened, further includes: record supplies
Piezoelectric voltage is less than the duration of first voltage threshold value；When duration is greater than the first preset duration, into control circuit board
Dissipative load open the step of.
In the technical scheme, it will do it the judgement of voltage detecting debounce before the dissipative load of control circuit board is opened,
Specifically: the duration certain time that supply voltage is less than first voltage threshold value can just be judged as circuit board power down, it
Selected dissipative load is opened afterwards, avoids the case where judging by accident.
In any of the above-described technical solution, it is preferable that further include: record the opening time of dissipative load；It grows when activated
Greater than the second preset duration and when supply voltage is greater than second voltage threshold value, control dissipative load is closed, wherein second voltage threshold
Value is less than first voltage threshold value.
In the technical scheme, the duration that dissipative load is opened has reached the second preset duration and supply voltage is not up to the
When two voltage thresholds (operating voltage), repid discharge processing routine terminates, and can close dissipative load.
In any of the above-described technical solution, it is preferable that further include: when supply voltage is more than or equal to first voltage threshold value,
If dissipative load is to open, dissipative load closing is controlled.
In the technical scheme, when detecting that supply voltage is higher than first voltage threshold value during opening dissipative load, then
Dissipative load is closed, normal condition is returned to.This abnormality processing is primarily to prevent circuit board again extensive suddenly during power down
Multiple power supply and the always on situation of dissipative load.
In any of the above-described technical solution, it is preferable that further include: when supply voltage is less than or equal to second voltage threshold value,
Determine that circuit board electric discharge terminates.
In the technical scheme, supply voltage drops to second voltage threshold value (operating voltage) and hereinafter, main control chip stops
It only works, determines that circuit board electric discharge terminates at this time.
According to another aspect of the present invention, a kind of circuit board discharge control device is proposed, comprising: detection module is used
In the supply voltage of detection circuit board；Control module is used for when supply voltage is less than first voltage threshold value, control circuit board
Dissipative load is opened.
Circuit board discharge control device provided by the invention, in circuit board operational process, control module (main control chip)
Real time monitoring main control chip supply voltage variation.When circuit board disconnects external power supply, the supply voltage of main control chip by
Gradually decline, when detecting that voltage drops to first voltage threshold value, that is, is judged to detecting circuit board power down, by execution circuit plate
Repid discharge program, the specific implementation are as follows: (electric energy that the length of time is stored by circuit board within an of short duration time
The speed of load consumption electric energy how many and for electric discharge determines.The electric energy of storage is more, and dissipative load is smaller, then required electric discharge
Time is longer) open circuit board on one or more dissipative loads, increase circuit board power down when load, by extra electric energy
It quickly consumes, to realize repid discharge when circuit board power down.Using technical solution of the present invention, powered by detection
The variation of voltage, the load of cooperation consumption electric energy is to realize that the repid discharge of circuit board can save significantly without increasing hardware circuit
Save design and manufacturing cost.
Foregoing circuit plate discharge control device according to the present invention, can also have following technical characteristic:
In the above-mentioned technical solutions, it is preferable that control module is also used to record supply voltage less than first voltage threshold value
Duration；When duration is greater than the first preset duration, the dissipative load of control circuit board is opened.
In the technical scheme, it will do it the judgement of voltage detecting debounce before the dissipative load of control circuit board is opened,
Specifically: the duration certain time that supply voltage is less than first voltage threshold value can just be judged as circuit board power down, it
Selected dissipative load is opened afterwards, avoids the case where judging by accident.
In any of the above-described technical solution, it is preferable that control module is also used to record the opening time of dissipative load；When
Opening time greater than the second preset duration and when supply voltage is greater than second voltage threshold value, close by control dissipative load, wherein the
Two voltage thresholds are less than first voltage threshold value.
In the technical scheme, the duration that dissipative load is opened has reached the second preset duration and supply voltage is not up to the
When two voltage thresholds (operating voltage), repid discharge processing routine terminates, and can close dissipative load.
In any of the above-described technical solution, it is preferable that control module is also used to be more than or equal to first voltage when supply voltage
When threshold value, if dissipative load is to open, dissipative load closing is controlled.
In the technical scheme, when detecting that supply voltage is higher than first voltage threshold value during opening dissipative load, then
Dissipative load is closed, normal condition is returned to.This abnormality processing is primarily to prevent circuit board again extensive suddenly during power down
Multiple power supply and the always on situation of dissipative load.
In any of the above-described technical solution, it is preferable that control module is also used to be less than or equal to second voltage when supply voltage
When threshold value, determine that circuit board electric discharge terminates.
In the technical scheme, supply voltage drops to second voltage threshold value (operating voltage) and hereinafter, main control chip stops
It only works, determines that circuit board electric discharge terminates at this time.
According to a further aspect of the invention, a kind of circuit board is proposed, the circuit board including any of the above-described technical solution
Discharge control device.
Circuit board provided by the invention, the circuit board discharge control device including any of the above-described technical solution, can be realized
Whole advantageous effects of the circuit board discharge control device of any of the above-described technical solution.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the flow diagram of the circuit board discharge control method of one embodiment of the present of invention；
Fig. 2 shows the flow diagrams of the circuit board discharge control method of another embodiment of the invention；
Fig. 3 shows the flow diagram of the circuit board discharge control method of yet another embodiment of the present invention；
Fig. 4 shows the flow diagram of the circuit board discharge control method of another embodiment of the invention；
Fig. 5 shows the flow diagram of the circuit board discharge control method of another embodiment of the invention；
Fig. 6 shows the flow diagram of the circuit board discharge control method of a specific embodiment of the invention；
Fig. 7 shows the schematic block diagram of the circuit board discharge control device of one embodiment of the present of invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, implementation of the invention
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not limited to following public affairs
The limitation for the specific embodiment opened.
The embodiment of first aspect present invention proposes that a kind of circuit board discharge control method, Fig. 1 show of the invention one
The flow diagram of the circuit board discharge control method of a embodiment.Wherein, this method comprises:
Step 102, the supply voltage of detection circuit board；
Step 104, when supply voltage is less than first voltage threshold value, the dissipative load of control circuit board is opened.
Circuit board discharge control method provided by the invention, in circuit board operational process, the real time monitoring of main control chip
The variation of main control chip supply voltage.When circuit board disconnects external power supply, the supply voltage of main control chip is gradually reduced, and works as inspection
When measuring voltage and dropping to first voltage threshold value, that is, it is judged to detecting circuit board power down, by execution circuit plate repid discharge journey
Sequence, specific implementation are as follows: (electric energy that the length of time is stored by circuit board is how many and is used within an of short duration time
The speed of the load consumption electric energy of electric discharge determines.The electric energy of storage is more, and dissipative load is smaller, then required discharge time is longer)
One or more dissipative loads on circuit board are opened, load when circuit board power down is increased, extra electric energy is quickly disappeared
It consumes, to realize repid discharge when circuit board power down.Using technical solution of the present invention, by the change for detecting supply voltage
Change, the repid discharge of circuit board is realized in the load of cooperation consumption electric energy, without increasing hardware circuit, can greatly save design and
Manufacturing cost.
Wherein, the selection of dissipative load need to follow following principle:
(1) extra electric energy can be rapidly depleted；
(2) user cannot significantly perceive the work of the working condition or the load of the load during power down and will not influence
To the user experience of product (such as fever load, the direct current generator etc. powered by circuit board).
Fig. 2 shows the flow diagrams of the circuit board discharge control method of another embodiment of the invention.Wherein, should
Method includes:
Step 202, the supply voltage of detection circuit board；
Step 204, when supply voltage is less than first voltage threshold value, record supply voltage is less than holding for first voltage threshold value
Continuous duration；
Step 206, when duration is greater than the first preset duration, the dissipative load of control circuit board is opened.
In this embodiment, the judgement of voltage detecting debounce, tool be will do it before the dissipative load of control circuit board is opened
Body are as follows: the duration certain time that supply voltage is less than first voltage threshold value can just be judged as circuit board power down, later
Selected dissipative load is opened, the case where judging by accident is avoided.
Fig. 3 shows the flow diagram of the circuit board discharge control method of yet another embodiment of the present invention.Wherein, should
Method includes:
Step 302, the supply voltage of detection circuit board；
Step 304, when supply voltage is less than first voltage threshold value, record supply voltage is less than holding for first voltage threshold value
Continuous duration；
Step 306, when duration is greater than the first preset duration, the dissipative load of control circuit board is opened；
Step 308, the opening time of dissipative load is recorded；Length is greater than the second preset duration when activated and supply voltage is big
When second voltage threshold value, control dissipative load is closed, and wherein second voltage threshold value is less than first voltage threshold value.
In this embodiment, the duration that dissipative load is opened has reached the second preset duration and supply voltage is not up to second
When voltage threshold (operating voltage), repid discharge processing routine terminates, and can close dissipative load.
Fig. 4 shows the flow diagram of the circuit board discharge control method of another embodiment of the invention.Wherein, should
Method includes:
Step 402, the supply voltage of detection circuit board；
Step 404, when supply voltage is less than first voltage threshold value, record supply voltage is less than holding for first voltage threshold value
Continuous duration；
Step 406, when duration is greater than the first preset duration, the dissipative load of control circuit board is opened；
Step 408, judge whether supply voltage is less than first voltage threshold value, when supply voltage is less than first voltage threshold value
When, 410 are entered step, otherwise enters step 412；
Step 410, the opening time of dissipative load is recorded；Length is greater than the second preset duration when activated and supply voltage is big
When second voltage threshold value, control dissipative load is closed, and wherein second voltage threshold value is less than first voltage threshold value；
Step 412, control dissipative load is closed.
In this embodiment, it when detecting that supply voltage is higher than first voltage threshold value during opening dissipative load, then closes
Dissipative load is closed, normal condition is returned to.This abnormality processing is primarily to prevent circuit board from restoring suddenly during power down again
Power supply and the always on situation of dissipative load.
Fig. 5 shows the flow diagram of the circuit board discharge control method of another embodiment of the invention.Wherein, should
Method includes:
Step 502, the supply voltage of detection circuit board；
Step 504, when supply voltage is less than first voltage threshold value, record supply voltage is less than holding for first voltage threshold value
Continuous duration；
Step 506, when duration is greater than the first preset duration, the dissipative load of control circuit board is opened；
Step 508, judge whether supply voltage is less than first voltage threshold value, when supply voltage is less than first voltage threshold value
When, 510 are entered step, otherwise enters step 516；
Step 510, judgement works as whether supply voltage is less than or equal to second voltage threshold value, when supply voltage is less than or equal to second
512 are entered step when voltage threshold, otherwise enter step 514；
Step 512, determine that circuit board electric discharge terminates；
Step 514, the opening time of dissipative load is recorded；Length is greater than the second preset duration when activated and supply voltage is big
When second voltage threshold value, control dissipative load is closed, and wherein second voltage threshold value is less than first voltage threshold value；
Step 516, control dissipative load is closed.
In this embodiment, supply voltage drops to second voltage threshold value (operating voltage) and hereinafter, main control chip stops
Work determines that circuit board electric discharge terminates at this time.
Fig. 6 shows the flow diagram of the circuit board discharge control method of a specific embodiment of the invention.Wherein,
This method comprises:
Step 602, circuit board powers on normal work；
Step 604, main control chip real-time chip supply voltage；
Step 606, judge whether supply voltage is less than the low voltage threshold of setting；
Step 608, when supply voltage is less than the low voltage threshold of setting, low voltage test debounce, and judge low-voltage
Whether duration is greater than debounce duration；
Step 610, when low-voltage duration is greater than debounce duration, dissipative load is opened；
Step 612, judge whether supply voltage is less than the low voltage threshold of setting；
Step 614, when supply voltage is less than the low voltage threshold of setting and voltage drops to operating voltage or less, knot
Beam；
Step 616, when supply voltage is less than the low voltage threshold of setting and load opening time reaches setting duration, into
Enter step 618；
Step 618, dissipative load is closed, normal condition is returned to.
The embodiment of second aspect of the present invention proposes that a kind of circuit board discharge control device, Fig. 7 show of the invention one
The schematic block diagram of the circuit board discharge control device 70 of a embodiment.Wherein, which includes:
Detection module 702, the supply voltage for detection circuit board；
Control module 704, for when supply voltage is less than first voltage threshold value, the dissipative load of control circuit board to be opened
It opens.
Circuit board discharge control device 70 provided by the invention, in circuit board operational process, 704 (master control of control module
Chip) real time monitoring main control chip supply voltage variation.When circuit board disconnects external power supply, the power supply electricity of main control chip
Pressure is gradually reduced, and when detecting that voltage drops to first voltage threshold value, that is, is judged to detecting circuit board power down, will be executed electricity
Road plate repid discharge program, specific implementation are as follows: (length of time is stored by circuit board within an of short duration time
The speed of how many and for electric discharge the load consumption electric energy of electric energy determines.The electric energy of storage is more, and dissipative load is smaller, then required
Discharge time is longer) open circuit board on one or more dissipative loads, increase circuit board power down when load, will be extra
Electric energy quickly consumes, to realize repid discharge when circuit board power down.Using technical solution of the present invention, pass through detection
The variation of supply voltage, the load of cooperation consumption electric energy is to realize that the repid discharge of circuit board can be big without increasing hardware circuit
It is big to save design and manufacturing cost.
Wherein, the selection of dissipative load need to follow following principle:
(1) extra electric energy can be rapidly depleted；
(2) user cannot significantly perceive the work of the working condition or the load of the load during power down and will not influence
To the user experience of product (such as fever load, the direct current generator etc. powered by circuit board).
Preferably, control module 704 are also used to record the duration that supply voltage is less than first voltage threshold value；When holding
When continuous duration is greater than the first preset duration, the dissipative load of control circuit board is opened.
In this embodiment, the judgement of voltage detecting debounce, tool be will do it before the dissipative load of control circuit board is opened
Body are as follows: the duration certain time that supply voltage is less than first voltage threshold value can just be judged as circuit board power down, later
Selected dissipative load is opened, the case where judging by accident is avoided.
Preferably, control module 704 are also used to record the opening time of dissipative load；It is long when activated to be greater than second in advance
If duration and supply voltage are greater than second voltage threshold value, control dissipative load is closed, and wherein second voltage threshold value is less than first
Voltage threshold.
In this embodiment, the duration that dissipative load is opened has reached the second preset duration and supply voltage is not up to second
When voltage threshold (operating voltage), repid discharge processing routine terminates, and can close dissipative load.
Preferably, control module 704 are also used to when supply voltage is more than or equal to first voltage threshold value, if dissipative load
To open, then dissipative load closing is controlled.
In this embodiment, it when detecting that supply voltage is higher than first voltage threshold value during opening dissipative load, then closes
Dissipative load is closed, normal condition is returned to.This abnormality processing is primarily to prevent circuit board from restoring suddenly during power down again
Power supply and the always on situation of dissipative load.
Preferably, control module 704 are also used to determine circuit board when supply voltage is less than or equal to second voltage threshold value
Electric discharge terminates.
In this embodiment, supply voltage drops to second voltage threshold value (operating voltage) and hereinafter, main control chip stops
Work determines that circuit board electric discharge terminates at this time.
The embodiment of third aspect present invention proposes a kind of circuit board, and the circuit board including any of the above-described embodiment is put
Controller for electric consumption.
Circuit board provided by the invention, the circuit board discharge control device including any of the above-described embodiment, can be realized
State whole advantageous effects of the circuit board discharge control device of any embodiment.
In the description of this specification, term " first ", " second " are only used for the purpose of description, and should not be understood as indicating
Or imply relative importance, unless otherwise clearly defined and limited；Term " connection ", " installation ", " fixation " etc. should all be done extensively
Reason and good sense solution, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be direct phase
It even, can also be indirectly connected through an intermediary.For the ordinary skill in the art, it can manage as the case may be
Solve the concrete meaning of above-mentioned term in the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of circuit board discharge control method characterized by comprising
Detect the supply voltage of the circuit board；
When the supply voltage is less than first voltage threshold value, the dissipative load for controlling the circuit board is opened.
2. circuit board discharge control method according to claim 1, which is characterized in that in the control circuit board
Before dissipative load is opened, further includes:
Record the duration that the supply voltage is less than the first voltage threshold value；
When the duration is greater than the first preset duration, into the step of the dissipative load unlatching of the control circuit board
Suddenly.
3. circuit board discharge control method according to claim 1 or 2, which is characterized in that further include:
Record the opening time of the dissipative load；
When the opening time is greater than the second preset duration and the supply voltage is greater than second voltage threshold value, the consumption is controlled
It can load and close, wherein the second voltage threshold value is less than the first voltage threshold value.
4. circuit board discharge control method according to claim 1 or 2, which is characterized in that further include:
When the supply voltage is more than or equal to the first voltage threshold value, if the dissipative load is to open, described in control
Dissipative load is closed.
5. circuit board discharge control method according to claim 3, which is characterized in that further include:
When the supply voltage is less than or equal to the second voltage threshold value, determine that the circuit board electric discharge terminates.
6. a kind of circuit board discharge control device characterized by comprising
Detection module, for detecting the supply voltage of the circuit board；
Control module, for when the supply voltage is less than first voltage threshold value, the dissipative load for controlling the circuit board to be opened
It opens.
7. circuit board discharge control device according to claim 6, which is characterized in that
The control module is also used to record the duration that the supply voltage is less than the first voltage threshold value；When described
When duration is greater than the first preset duration, the dissipative load for controlling the circuit board is opened.
8. circuit board discharge control device according to claim 6 or 7, which is characterized in that
The control module is also used to record the opening time of the dissipative load；It is preset when the opening time is greater than second
When duration and the supply voltage are greater than second voltage threshold value, control the dissipative load and close, wherein the second voltage threshold
Value is less than the first voltage threshold value.
9. circuit board discharge control device according to claim 6 or 7, which is characterized in that
The control module is also used to when the supply voltage is more than or equal to the first voltage threshold value, if the energy consumption is negative
It carries to open, then controls the dissipative load and close.
10. circuit board discharge control device according to claim 8, which is characterized in that
The control module is also used to determine the circuit when the supply voltage is less than or equal to the second voltage threshold value
Plate electric discharge terminates.
11. a kind of circuit board characterized by comprising
Circuit board discharge control device as described in any one of claim 6 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208055.6A CN109327019A (en) | 2018-10-17 | 2018-10-17 | A kind of circuit board discharge control method, discharge control device and circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208055.6A CN109327019A (en) | 2018-10-17 | 2018-10-17 | A kind of circuit board discharge control method, discharge control device and circuit board |
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| Publication Number | Publication Date |
|---|---|
| CN109327019A true CN109327019A (en) | 2019-02-12 |
Family
ID=65262557
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811208055.6A Pending CN109327019A (en) | 2018-10-17 | 2018-10-17 | A kind of circuit board discharge control method, discharge control device and circuit board |
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| CN205657861U (en) * | 2016-05-04 | 2016-10-19 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating cooks device and drive circuit thereof |
| CN108389596A (en) * | 2018-05-22 | 2018-08-10 | 北京紫光得瑞科技有限公司 | A kind of power-down protection circuit, method and the solid state disk of NAND Flash chips |
| CN108512426A (en) * | 2017-02-27 | 2018-09-07 | 中兴通讯股份有限公司 | Switching Power Supply control method, device and switch power controller |
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2018
- 2018-10-17 CN CN201811208055.6A patent/CN109327019A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1797021A (en) * | 2004-12-28 | 2006-07-05 | 安捷伦科技有限公司 | System for discharging electronic circuitry |
| CN203056953U (en) * | 2012-12-31 | 2013-07-10 | 北京配天大富精密机械有限公司 | Driver and bus capacitor discharge circuit thereof |
| CN103326905A (en) * | 2013-07-16 | 2013-09-25 | 迈普通信技术股份有限公司 | Discharging circuit, communication equipment and discharging method |
| CN105680678A (en) * | 2016-03-30 | 2016-06-15 | 合肥惠科金扬科技有限公司 | Discharge circuit and AC power supply device |
| CN205657861U (en) * | 2016-05-04 | 2016-10-19 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating cooks device and drive circuit thereof |
| CN108512426A (en) * | 2017-02-27 | 2018-09-07 | 中兴通讯股份有限公司 | Switching Power Supply control method, device and switch power controller |
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Application publication date: 20190212 |
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