CN107863816A - A kind of SCM Based projector equipment - Google Patents
A kind of SCM Based projector equipment Download PDFInfo
- Publication number
- CN107863816A CN107863816A CN201711133755.9A CN201711133755A CN107863816A CN 107863816 A CN107863816 A CN 107863816A CN 201711133755 A CN201711133755 A CN 201711133755A CN 107863816 A CN107863816 A CN 107863816A
- Authority
- CN
- China
- Prior art keywords
- module
- power
- projector equipment
- lithium battery
- interfaces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Projection Apparatus (AREA)
Abstract
The present invention discloses a kind of SCM Based projector equipment, is related to electronic technology field, including：Outage detection module, whether power off for being detected as the civil power that the projector equipment is powered under normal usage and send result to main controller module；Temporary power module, for being powered after power-off for the projector equipment temporarily；Lithium battery module, for after the instruction of main controller module transmission is received, the phase to be projector equipment power supply after a loss of power；Lithium cell charging management module, for carrying out Charge Management in the case of normal power-up for lithium battery module in projector equipment；Main controller module, for receiving the testing result of power-off monitoring modular, for controlling lithium battery module to be powered for projector equipment after power-off.The present invention solves existing projecting apparatus to be directly powered using civil power after a loss of power, if power-off condition occurs in a meeting, meeting is forced to terminate, the problem of causing a certain degree of loss to enterprise or user.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of SCM Based projector equipment.
Background technology
Power-off protection refer to instrument or electrical equipment protected in the case of unexpected power-off the data handled do not lose or
The function that person's function is not damaged；Either refer to when operationally there is causing the situation of damage or danger in instrument or electrical equipment from
Dynamic cut off the electricity supply out of service ensures the function of equipment safety.Projector equipment is most important in the life of people, usual
Meeting in, can nearly all use projector equipment, existing projection have one it is important the shortcomings that, be all directly to be entered using civil power
Row power supply, if power-off condition occurs in a meeting, meeting is forced to terminate, and this can cause a certain degree of loss to enterprise.
The content of the invention
It is an object of the invention to：To solve existing projector equipment directly supplied using civil power after a loss of power
Electricity, if power-off condition occurs in a meeting, meeting is forced to terminate, and this can cause a certain degree of loss to enterprise or user
The problem of.The present invention provides a kind of SCM Based projector equipment.
Technical scheme is as follows：
A kind of SCM Based projector equipment, the projector equipment include：
Outage detection module, whether powered off for being detected as the civil power that the projector equipment is powered under normal usage
And result is sent to main controller module.
Temporary power module, for being powered after power-off for the projector equipment temporarily, including powered for main controller module.
Lithium battery module, for after the instruction of main controller module transmission is received, the phase to be projector equipment after a loss of power
Power supply, including powered for main controller module.
Lithium cell charging management module, for being filled in projector equipment in the case of normal power-up for lithium battery module
Fulgurite is managed.
Main controller module, for receiving the testing result of power-off monitoring modular, for controlling lithium battery module after power-off
Powered for projector equipment.
Specifically, two charging capacitors in parallel that the temporary power module includes with normal power supply interface is in parallel
1000uf/25V, the charging capacitor are also in parallel with 10uF and 100nF electric capacity.
Specifically, the main controller module is STC15F100 single-chip microcomputers, P3.4 the and P3.2 interfaces of the single-chip microcomputer connect
Outage detection module is connect, VCC interfaces connect the output end of temporary power module, the output end and VCC of the temporary power module
The electric capacity for voltage stabilizing chip LM78M05 and two 10uF and 100nF in parallel is also associated between interface, the single-chip microcomputer
P3.1 interfaces connect the switch module of projector equipment, the P3.3 connection lithium battery modules of the single-chip microcomputer.
Specifically, the P3.3 interfaces of single-chip microcomputer are also associated with 3904Q1 triodes, 390,4Q1 tri- with the lithium battery module
It is connected after the base stage connection 1K Ω resistance of pole pipe with P3.3 interfaces, P3.3 interfaces are directly further connected with 10K Ω with the 1K Ω resistance
One end of resistance, the other end ground connection of the 10K Ω resistance, the grounded emitter of the 3904Q1 triodes, the 3904Q1
Outage detection module is connected after the collection point pole connection 11K Ω resistance of triode.
The lithium battery module passes through the VCC interfaces of the voltage stabilizing chip LM78M05 connections STC15F100 single-chip microcomputers, institute
State and AO3407M2 triodes, the base of AO3407M2 triodes are connected between lithium battery module and the voltage stabilizing chip LM78M05
Pole connects the colelctor electrode of 3904Q1 triodes, the emitter stage connection lithium battery module of AO3407M2 triodes, the poles of AO3407M2 tri-
Voltage stabilizing chip LM78M05 input, the current collection of AO3407M2 triodes are connected after the colelctor electrode connection voltage-stabiliser tube D2SK34 of pipe
One end of 100nF electric capacity is connected with after the connection voltage-stabiliser tube D2SK34 of pole between connection voltage stabilizing chip LM78M05 input,
The other end ground connection of 100nF electric capacity.
Specifically, the battery charging management module includes MC34063A chips, the SWC interfaces of the MC34063A chips
Connection input VCC, the VCC interfaces of the MC34063A chips are as 12VIN voltage outputs, the lithium cell charging management electricity
Road manages integrated circuit using the CN3705 lithium cell chargings of CONSONANCE companies.
After such scheme, the beneficial effects of the present invention are：
(1) solving existing projector equipment is directly powered using civil power after a loss of power, if in meeting
Middle generation.
(2) lithium battery needs strictly to control its voltage, electric current and temperature in use, overcharge, cross put, excessively stream and mistake
Wen Douhui causes cell damage, influences the security that battery uses, and the present invention is electric using the CN3705 lithiums of CONSONANCE companies
Pond Charge Management integrated circuit realizes Charge Management to lithium battery, and to make battery be charged to VBAT=12V, input VCC will meet
VCC-VBAT》2V, it is therefore desirable to which first boosting makes VCC=15V, is realized especially by booster circuit, improves security.
(3) lithium battery has the advantages that small volume, energy density height, memory-less effect, had extended cycle life, and selects lithium battery
It can increase the service life for power-off protection stand-by power supply.
Brief description of the drawings
Fig. 1 is the modular structure schematic diagram figure of the present invention；
Fig. 2 is the part-structure schematic diagram of the present invention；
Fig. 3 is the battery charging management circuit figure of the present invention；
Marked in figure：1- outage detection modules, 2- temporary power modules, 3- lithium battery modules, 4- lithium cell charging management
Module, 5- main controller modules.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the present embodiment is carried out clearly and completely
Description, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of protection of the invention.
Embodiment
A kind of SCM Based projector equipment, the projector equipment include：
Outage detection module 1, whether break for being detected as the civil power that the projector equipment is powered under normal usage
Electricity simultaneously sends result to main controller module 5；Temporary power module 2, for being powered after power-off for the projector equipment temporarily,
Including being powered for main controller module 5；Lithium battery module 3, for receive main controller module 5 transmission instruction after,
The power-off later stage powers for projector equipment, including powered for main controller module 5；Lithium cell charging management module 4, for projecting
Equipment carries out Charge Management in the case of normal power-up for lithium battery module 3；Main controller module 5, for receiving power-off prison
The testing result of module 1 is surveyed, for controlling lithium battery module 3 to be powered for projector equipment after power-off.
As shown in figure 1, two chargings in parallel that the temporary power module 2 includes with normal power supply interface is in parallel
Electric capacity 1000uf/25V, the charging capacitor are also in parallel with 10uF and 100nF electric capacity.The main controller module 5 is
STC15F100 single-chip microcomputers, P3.4 with the P3.2 interfaces of the single-chip microcomputer connect outage detection module 1, and the connection of VCC interfaces is interim to supply
The output end of electric module 2, it is also associated between the output end and VCC interfaces of the temporary power module 2 as voltage stabilizing chip
LM78M05 and two 10uF and 100nF in parallel electric capacity, the switch of the P3.1 interfaces connection projector equipment of the single-chip microcomputer
Module, the P3.3 connections lithium battery module 3 of the single-chip microcomputer.The P3.3 interfaces of single-chip microcomputer are also connected with the lithium battery module 3
Have a 3904Q1 triodes, be connected after the base stage connection 1K Ω resistance of 3904Q1 triodes with P3.3 interfaces, P3.3 interfaces with it is described
1K Ω resistance is directly further connected with one end of 10K Ω resistance, the other end ground connection of the 10K Ω resistance, the 3904Q1 triodes
Grounded emitter, connect outage detection module 1 after the collection point pole connection 11K Ω resistance of the 3904Q1 triodes.The lithium
Battery module 3 passes through the VCC interfaces of the voltage stabilizing chip LM78M05 connections STC15F100 single-chip microcomputers, the lithium battery module 3
AO3407M2 triodes, the base stage connection 3904Q1 of AO3407M2 triodes are connected between the voltage stabilizing chip LM78M05
The colelctor electrode of triode, the emitter stage connection lithium battery module 3 of AO3407M2 triodes, the colelctor electrode of AO3407M2 triodes connect
Connect the input that voltage stabilizing chip LM78M05 is connected after voltage-stabiliser tube D2SK34, the colelctor electrode connection voltage-stabiliser tube of AO3407M2 triodes
One end of 100nF electric capacity is connected with after D2SK34 between connection voltage stabilizing chip LM78M05 input, 100nF electric capacity
The other end is grounded.As shown in Fig. 2 the battery charging management module includes MC34063A chips, the MC34063A chips
SWC interfaces connection input VCC, the VCC interfaces of the MC34063A chips fill as 12VIN voltage outputs, the lithium battery
Fulgurite reason circuit manages integrated circuit using the CN3705 lithium cell chargings of CONSONANCE companies.
The present invention principle be：In the case of normal power-up, 12VIN interfaces are passing through after voltage-regulator diode D1SK34
After voltage stabilizing chip LM78M05, normal power supply is carried out to main controller module 5, i.e. single-chip microcomputer STC15F100 carries out normal power supply,
Meanwhile two charging capacitor 1000uf/25V in parallel are charged, single-chip microcomputer STC15F100 is by P3.3 interfaces to lithium electricity
Pond module 3 is controlled, and now, lithium battery module 3 is closed, and is not charged for projector equipment；When power-off, break
No current, two charging capacitor 1000uf/25V electric discharges in parallel are carried out electro-detection module 112VIN charge ports to single-chip microcomputer
Power supply, meanwhile, single-chip microcomputer is powered by P3.3 Interface Controllers lithium battery module 3 to projector equipment, meanwhile, lithium battery module
3 couples of single-chip microcomputer STC15F100 are powered, single-chip microcomputer STC15F100 by P3.1 interfaces to whole projector equipment realize open or
Person is closed, that is to say, that during system normal power supply, 12VOUT=12VIN；During system cut-off, outage detection module 1 produces detection letter
Number DET1 and DET2, master controller MCU switch power to lithium battery module 3 and exported in time, i.e. 12VOUT=VBAT to due to
Lithium battery has the advantages that small volume, energy density height, memory-less effect, had extended cycle life, and it is power-off protection to select lithium battery
Stand-by power supply.If single-chip microcomputer STC15F100 sends shutdown command ON/OFF.PC and completes currently processed rear shutdown, master controller
MCU can detect DETECT state transitions, and then cut off load, protection battery output.Meanwhile the present invention uses CONSONANCE
The CN3705 lithium cell chargings management integrated circuit of company realizes Charge Management to lithium battery, to make battery be charged to VBAT=
12V, input VCC will meet VCC-VBAT》2V, it is therefore desirable to which first boosting makes VCC=15V, is realized especially by booster circuit.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. a kind of SCM Based projector equipment, it is characterised in that the projector equipment includes：
Outage detection module (1), whether powered off for being detected as the civil power that the projector equipment is powered under normal usage
And result is sent to main controller module (5)；
Temporary power module (2), for being powered after power-off for main controller module (5) temporarily；
Lithium battery module (3), for receive main controller module (5) transmission instruction after, after a loss of power the phase set for projection
Available electricity；
Lithium cell charging management module (4), for being carried out in projector equipment in the case of normal power-up for lithium battery module (3)
Charge Management；
Main controller module (5), for receiving the testing result of outage detection module (1), for controlling lithium battery mould after power-off
Block (3) is powered for projector equipment.
A kind of 2. SCM Based projector equipment according to claim 1, it is characterised in that the temporary power module
(2) include with two charging capacitor 1000uf/25V in parallel that normal power supply interface is in parallel, the charging capacitor also with
10uF and 100nF electric capacity is in parallel.
A kind of 3. SCM Based projector equipment according to claim 1, it is characterised in that the main controller module
(5) it is STC15F100 single-chip microcomputers, P3.4 with the P3.2 interfaces of the single-chip microcomputer connect outage detection module, and the connection of VCC interfaces is faced
When power supply module output end, be also associated between the output end and VCC interfaces of the temporary power module as voltage stabilizing chip
LM78M05 and two 10uF and 100nF in parallel electric capacity, the switch of the P3.1 interfaces connection projector equipment of the single-chip microcomputer
Module, the P3.3 connection lithium battery modules of the single-chip microcomputer.
A kind of 4. SCM Based projector equipment according to claim 3, it is characterised in that the P3.3 interfaces of single-chip microcomputer
Be also associated with 3904Q1 triodes with the lithium battery module (3), after the base stage connection 1K Ω resistance of 3904Q1 triodes with
P3.3 interfaces connect, and P3.3 interfaces are directly further connected with one end of 10K Ω resistance with the 1K Ω resistance, the 10K Ω resistance
The other end is grounded, the grounded emitter of the 3904Q1 triodes, the collection point pole connection 11K Ω resistance of the 3904Q1 triodes
Outage detection module (1) is connected afterwards.
A kind of 5. SCM Based projector equipment according to claim 4, it is characterised in that the lithium battery module
(3) the VCC interfaces of the voltage stabilizing chip LM78M05 connections STC15F100 single-chip microcomputers, the lithium battery module (3) and institute are passed through
State and AO3407M2 triodes are connected between voltage stabilizing chip LM78M05, base stage connection 390,4Q1 tri- poles of AO3407M2 triodes
The colelctor electrode of pipe, the emitter stage connection lithium battery module of AO3407M2 triodes, the colelctor electrode connection of AO3407M2 triodes are steady
Voltage stabilizing chip LM78M05 input, the colelctor electrode connection voltage-stabiliser tube of AO3407M2 triodes are connected after pressure pipe D2SK34
One end of 100nF electric capacity is connected with after D2SK34 between connection voltage stabilizing chip LM78M05 input, 100nF electric capacity
The other end is grounded.
A kind of 6. SCM Based projector equipment according to claim 1, it is characterised in that the lithium cell charging pipe
Reason module (4) includes MC34063A chips, the SWC interfaces connection input VCC of the MC34063A chips, the MC34063A cores
The VCC interfaces of piece are as 12VIN voltage outputs, and the lithium battery charging management circuit is using CONSONANCE companies
CN3705 lithium cell chargings manage integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133755.9A CN107863816A (en) | 2017-11-16 | 2017-11-16 | A kind of SCM Based projector equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133755.9A CN107863816A (en) | 2017-11-16 | 2017-11-16 | A kind of SCM Based projector equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107863816A true CN107863816A (en) | 2018-03-30 |
Family
ID=61701788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711133755.9A Pending CN107863816A (en) | 2017-11-16 | 2017-11-16 | A kind of SCM Based projector equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107863816A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102541238A (en) * | 2011-12-31 | 2012-07-04 | 数源科技股份有限公司 | Outage protector used for embedded computer and realization method thereof |
| CN106532810A (en) * | 2016-10-28 | 2017-03-22 | 深圳市劲松安防科技有限公司 | Uninterruptible power supply control circuit and video camera comprising same |
| CN206422595U (en) * | 2017-01-17 | 2017-08-18 | 四川航天职业技术学院 | Projecting apparatus powers off automatic safety device |
| CN207504636U (en) * | 2017-11-16 | 2018-06-15 | 绵阳市建诚电子有限公司 | A kind of projecting apparatus with power-off protection function |
-
2017
- 2017-11-16 CN CN201711133755.9A patent/CN107863816A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102541238A (en) * | 2011-12-31 | 2012-07-04 | 数源科技股份有限公司 | Outage protector used for embedded computer and realization method thereof |
| CN106532810A (en) * | 2016-10-28 | 2017-03-22 | 深圳市劲松安防科技有限公司 | Uninterruptible power supply control circuit and video camera comprising same |
| CN206422595U (en) * | 2017-01-17 | 2017-08-18 | 四川航天职业技术学院 | Projecting apparatus powers off automatic safety device |
| CN207504636U (en) * | 2017-11-16 | 2018-06-15 | 绵阳市建诚电子有限公司 | A kind of projecting apparatus with power-off protection function |
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