CN107846063A - A kind of intelligent instrumentation protection system based on farad capacitor - Google Patents
A kind of intelligent instrumentation protection system based on farad capacitor Download PDFInfo
- Publication number
- CN107846063A CN107846063A CN201710985824.2A CN201710985824A CN107846063A CN 107846063 A CN107846063 A CN 107846063A CN 201710985824 A CN201710985824 A CN 201710985824A CN 107846063 A CN107846063 A CN 107846063A
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- China
- Prior art keywords
- farad capacitor
- circuit
- resistance
- voltage
- power
- 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.)
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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
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of intelligent instrumentation based on farad capacitor to protect system; circuit, system load are improved including main circuit, charge-discharge control circuit, farad capacitor, detection of power loss triggers circuit, farad capacitor efficiency; farad capacitor is charged to after rated value and is not turned off within the system; main power supply improves circuit by farad capacitor efficiency together with farad capacitor and system is powered; farad capacitor is immediately to system power supply after system power failure; detection of power loss triggers circuit sends power-off signal simultaneously, and system carries out the emergent management of data；Voltage Drop phenomenon is not present in system power supply switching, when circuit has the voltage pulsation of transient state, farad capacitor also has the function of absorbing filtering, eliminate power switching on-off circuit, system is more simple, it is more efficient, and farad capacitor has that specific power is big, storage energy is high, can carry out high efficiency fast charging and discharging, long lifespan, then further improve the security reliability of system.
Description
Technical field
The present invention relates to instrument and meter protection technique field, specifically a kind of intelligent instrumentation based on farad capacitor is protected
Protecting system.
Background technology
The industrial environment of intelligent instrumentation operation is more severe, and the fluctuation of power network, the transient changing of inductive load are all tight
Normal power supply and the operation of intelligent instrumentation are disturbed again, are particularly led in medicine equipment, bioelectronics, military project servo-drive system etc.
Domain, the loss of critical data, control step-out etc. will all cause serious consequence.Some existing instrument and meter power supply reliabilities are set
Meter is typically using rechargeable battery as back-up source, and there is the power down protection time is too short, charging current is excessive, service life
The problems such as single-chip microcomputer BUCK IC that are short, can not being exported with universal small current carry out board-level integration.
The content of the invention
It is an object of the invention to provide a kind of intelligent instrumentation based on farad capacitor to protect system, above-mentioned to solve
The problem of being proposed in background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of intelligent instrumentation protection system based on farad capacitor, including main circuit, charge-discharge control circuit, farad electricity
Appearance, detection of power loss triggers circuit, farad capacitor efficiency improve circuit, system load, and the main circuit connects after Zenith tracking
Detection of power loss triggers circuit is connect, the detection of power loss triggers circuit exports power-off signal to system load, main circuit connection farad
Electric capacity efficiency improves circuit, and the power supply of circuit, the charge-discharge control circuit connection farad electricity are improved for farad capacitor efficiency
Hold, for the effective electricity in farad capacitor charge and discharge process, constant pressure, constant current and the control in charging interval, the farad capacitor
Connect farad capacitor efficiency and improve circuit, and electricity is provided for it, the farad capacitor efficiency improves circuit connecting system load.
As the further scheme of the present invention：The farad capacitor uses rated voltage as 5.0V, electric capacity 1.5F.
As the further scheme of the present invention：The system load is provided with signal input, processing, follower, for being
Unite and the data emergency of power-off signal is handled.
As the further scheme of the present invention：The charge-discharge control circuit includes charging current limiter circuit and constant-current discharge electricity
Road, the charging current limiter electricity routing capacitance C1, farad capacitor C2, resistance R1, metal-oxide-semiconductor Q1, voltage-regulator diode D1, resistance R2 connections
Composition, a metal-oxide-semiconductor Q1 both ends general-purpose diode in parallel, the constant-current discharge circuit is by triode DS, voltage-regulator diode
D2, resistance R3, resistance R4, metal-oxide-semiconductor Q2 connections composition, the metal-oxide-semiconductor Q2 is using being positive-negative-positive adjustment pipe, for reducing pressure drop damage
Lose, the triode DS controls the electric current of output according to R4 pressure drop, and the resistance R3 provides necessary electricity for metal-oxide-semiconductor Q2 conductings
Pressure.
As the further scheme of the present invention：The detection of power loss triggers circuit by DC-DC converter, electronic component, be
Unite signal processing apparatus connection composition, the electronic component include triode Q3, triode Q4, voltage-regulator diode D3, resistance R5,
Resistance R6, resistance R7, resistance R8, the triode Q3, triode Q4 use NPN type triode, and the voltage-regulator diode D3 is adopted
With 7.5 V voltage-stabiliser tubes.
As the further scheme of the present invention：The farad capacitor efficiency improve circuit by farad capacitor, electronic device, be
System load connection composition, the electronic device include resistance R9, resistance R10, resistance R11, inductance L1, voltage-regulator diode D4, electricity
Hold C11, electric capacity C12, metal-oxide-semiconductor Q5 and Boost DC-DC converter, described resistance R10, R11 resistance can adjust, for adjusting
Circuit output voltage.
Compared with prior art, the beneficial effects of the invention are as follows：After farad capacitor is charged to rated value within the system
And be not turned off, main power supply improves circuit by farad capacitor efficiency together with farad capacitor and system is powered, and works as system
For farad capacitor immediately to system power supply, while detection of power loss triggers circuit sends power-off signal, system carries out data after power down
Emergent management；Voltage Drop phenomenon is not present in system power supply switching, and when circuit has the voltage pulsation of transient state, farad capacitor is also
With the function of absorbing filtering, power switching on-off circuit is eliminated, system is more simple, more efficient, and farad capacitor has
Have that specific power is big, storage energy is high, can carry out high efficiency fast charging and discharging, long lifespan, then further improve the safety of system
Reliability.
Brief description of the drawings
Fig. 1 is that a kind of intelligent instrumentation based on farad capacitor protects system architecture diagram；
Fig. 2 is farad capacitor charge-discharge circuit figure；
Fig. 3 is detection of power loss triggers circuit figure；
Fig. 4 is that farad capacitor efficiency improves circuit diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1-4, a kind of intelligent instrumentation protection system based on farad capacitor, including main circuit 1, discharge and recharge
Control circuit 2, farad capacitor 3, detection of power loss triggers circuit 4, farad capacitor efficiency improve circuit 5, system load 6, the master
Circuit 1 connects detection of power loss triggers circuit 4 after Zenith tracking, and the detection of power loss triggers circuit 4 exports power-off signal and arrived
System load 6, main circuit 1 connect farad capacitor efficiency and improve circuit 5, and the power supply of circuit 5, institute are improved for farad capacitor efficiency
State charge-discharge control circuit 2 connect farad capacitor 3, for the effective electricity in farad capacitor charge and discharge process, constant pressure, constant current and
The control in charging interval, the farad capacitor 3 connects farad capacitor efficiency and improves circuit 5, and provides electricity, the farad for it
Electric capacity efficiency improves circuit 5 and connects system load 6, and farad capacitor 3 is charged to after rated value and is not turned off within the system,
Main power supply 1 improves circuit 5 by farad capacitor efficiency together with farad capacitor 3 and system is powered, method after system power failure
Drawing electric capacity 3, system carries out the urgent place of data immediately to system power supply, while detection of power loss triggers circuit 4 sends power-off signal
Reason；Voltage Drop phenomenon is not present in system power supply switching, and when circuit has the voltage pulsation of transient state, farad capacitor 3 also has and inhaled
The function of filtering is received, eliminates power switching on-off circuit, system is more simple, more efficient.
The farad capacitor 3 uses rated voltage as 5.0V, electric capacity 1.5F.
The system load 6 is provided with signal input, processing, follower, the data emergency for system to power-off signal
Processing.
The charge-discharge control circuit 2 includes charging current limiter circuit and constant-current discharge circuit, the charging current limiter circuit by
Electric capacity C1, farad capacitor C2, resistance R1, metal-oxide-semiconductor Q1, voltage-regulator diode D1, resistance R2 connections composition, the metal-oxide-semiconductor Q1 both ends
A general-purpose diode in parallel, in charging process, R1 main metering functions of resistance, opened under 5 stable V in farad capacitor 3
The electric current of dynamic moment is maximum, and resistance R2 reduces starting current, MOS in the delay circuit now formed due to electric capacity C1, resistance R1
Pipe Q1 is not turned on, and Q1 is opened after electric current reduction, and electric current is mainly charged by metal-oxide-semiconductor Q1 to farad capacitor, is reduced ohmically
Excess loss, and regulation electric capacity C1, resistance R1 parameters can adjust the metal-oxide-semiconductor Q1 delay opening time, and it is defeated to complete farad capacitor 3
Enter the current limliting of electric current, and carry out quick charge；The constant-current discharge circuit is by triode DS, voltage-regulator diode D2, resistance R3, electricity
R4, metal-oxide-semiconductor Q2 connections composition are hindered, the metal-oxide-semiconductor Q2 is using being positive-negative-positive adjustment pipe, and for reducing droop loss, the circuit passes through
Triode DS, which expands stream, can provide reliable constant-current source, and the triode DS controls the electric current of output, the electricity according to R4 pressure drop
Resistance R3 provides necessary voltage for metal-oxide-semiconductor Q2 conductings.
The detection of power loss triggers circuit 4 is made up of DC-DC converter, electronic component, the connection of system signal processing unit,
It is simple and reliable；The electronic component include triode Q3, triode Q4, voltage-regulator diode D3, resistance R5, resistance R6, resistance R7,
Resistance R8, the triode Q3, triode Q4 use NPN type triode, and the voltage-regulator diode D3 uses 7.5 V voltage-stabiliser tubes,
When voltage normally inputs, voltage-regulator diode D3 breakdown, stable to be opened in 7.5 V, triode Q3, triode Q4 is closed, triggering
Signal is high level, and when input voltage is less than 7.5 V, triode Q3 is closed, and triode Q4 is opened, and trigger signal is changed into low electricity
It is flat, the processor action of triggering system signal.
The farad capacitor efficiency improves circuit 5 and is made up of farad capacitor 3, electronic device, the connection of system load 6, described
Electronic device includes resistance R9, resistance R10, resistance R11, inductance L1, voltage-regulator diode D4, electric capacity C11, electric capacity C12, metal-oxide-semiconductor
Q5 and Boost DC-DC converters, use low input Boost DC-DC converters in the circuit, can be inputted in 2.1V electric
Normal output 5V voltages in the case of pressure, by the circuit, in farad capacitor output voltage from during 4V drops to 2.1V,
Load circuit has stable 5V inputs, ensure that the reliability of load voltage when carrying out power down protection action, adjusts resistance
R10, R11 value can be with adjustment circuit output voltages, while metal-oxide-semiconductor Q5 has the expansion function of current, prevents excessive load
Circuit damage device.
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 intelligent instrumentation protection system based on farad capacitor, it is characterised in that including main circuit（1）, discharge and recharge
Control circuit（2）, farad capacitor（3）, detection of power loss triggers circuit（4）, farad capacitor efficiency improve circuit（5）, system load
（6）, the main circuit（1）Detection of power loss triggers circuit is connected after Zenith tracking（4）, the detection of power loss triggers circuit
（4）Power-off signal is exported to system load（6）, main circuit（1）Connect farad capacitor efficiency and improve circuit（5）, for farad electricity
Hold efficiency and improve circuit（5）Power supply, the charge-discharge control circuit（2）Connect farad capacitor（3）, for farad capacitor charge and discharge
Effective electricity, constant pressure, constant current and the control in charging interval in electric process, the farad capacitor（3）Connect farad capacitor efficiency
Improve circuit（5）, and electricity is provided for it, the farad capacitor efficiency improves circuit（5）Connect system load（6）.
A kind of 2. intelligent instrumentation protection system based on farad capacitor according to claim 1, it is characterised in that institute
State farad capacitor（3）Rated voltage is used as 5.0V, electric capacity 1.5F.
A kind of 3. intelligent instrumentation protection system based on farad capacitor according to claim 1, it is characterised in that institute
State system load（6）Signal input, processing, follower are provided with, the data emergency of power-off signal is handled for system.
A kind of 4. intelligent instrumentation protection system based on farad capacitor according to claim 1, it is characterised in that institute
State charge-discharge control circuit（2）Including charging current limiter circuit and constant-current discharge circuit, the charging current limiter electricity routing capacitance C1, method
Electric capacity C2, resistance R1, metal-oxide-semiconductor Q1, voltage-regulator diode D1, resistance R2 connections is drawn to form, one in parallel of the metal-oxide-semiconductor Q1 both ends are general
Logical diode, the constant-current discharge circuit is by triode DS, voltage-regulator diode D2, resistance R3, resistance R4, metal-oxide-semiconductor Q2 connection groups
Into the metal-oxide-semiconductor Q2 is using being positive-negative-positive adjustment pipe, and for reducing droop loss, the triode DS controls according to R4 pressure drop
The electric current of output, the resistance R3 provide necessary voltage for metal-oxide-semiconductor Q2 conductings.
A kind of 5. intelligent instrumentation protection system based on farad capacitor according to claim 1, it is characterised in that institute
State detection of power loss triggers circuit（4）It is made up of DC-DC converter, electronic component, the connection of system signal processing unit, the electronics
Element includes triode Q3, triode Q4, voltage-regulator diode D3, resistance R5, resistance R6, resistance R7, resistance R8, the triode
Q3, triode Q4 use NPN type triode, and the voltage-regulator diode D3 uses 7.5 V voltage-stabiliser tubes.
A kind of 6. intelligent instrumentation protection system based on farad capacitor according to claim 1, it is characterised in that institute
State farad capacitor efficiency and improve circuit（5）By farad capacitor（3）, electronic device, system load（6）Connection composition, the electronics
Device include resistance R9, resistance R10, resistance R11, inductance L1, voltage-regulator diode D4, electric capacity C11, electric capacity C12, metal-oxide-semiconductor Q5 with
Boost DC-DC converters, described resistance R10, R11 resistance can adjust, for adjustment circuit output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985824.2A CN107846063A (en) | 2017-10-20 | 2017-10-20 | A kind of intelligent instrumentation protection system based on farad capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985824.2A CN107846063A (en) | 2017-10-20 | 2017-10-20 | A kind of intelligent instrumentation protection system based on farad capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107846063A true CN107846063A (en) | 2018-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710985824.2A Pending CN107846063A (en) | 2017-10-20 | 2017-10-20 | A kind of intelligent instrumentation protection system based on farad capacitor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878438A (en) * | 2019-02-22 | 2019-06-14 | 湖南海博瑞德电智控制技术有限公司 | Power-supply system for new-energy automobile |
| CN110729803A (en) * | 2019-12-04 | 2020-01-24 | 深圳市嘉昱机电有限公司 | Charging and discharging circuit, power management equipment and power utilization system |
| CN111193317A (en) * | 2020-01-22 | 2020-05-22 | 福建工程学院 | Power-down protection circuit for terminal equipment |
| CN112671082A (en) * | 2020-12-30 | 2021-04-16 | 江苏金丰机电有限公司 | Circuit for realizing battery lock work by discharging through capacitor after battery power failure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201682417U (en) * | 2010-04-29 | 2010-12-22 | 湖南文理学院 | Power supply protection circuit based on super capacitor |
-
2017
- 2017-10-20 CN CN201710985824.2A patent/CN107846063A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201682417U (en) * | 2010-04-29 | 2010-12-22 | 湖南文理学院 | Power supply protection circuit based on super capacitor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878438A (en) * | 2019-02-22 | 2019-06-14 | 湖南海博瑞德电智控制技术有限公司 | Power-supply system for new-energy automobile |
| CN109878438B (en) * | 2019-02-22 | 2021-09-14 | 湖南海博瑞德电智控制技术有限公司 | Power supply system for new energy automobile |
| CN110729803A (en) * | 2019-12-04 | 2020-01-24 | 深圳市嘉昱机电有限公司 | Charging and discharging circuit, power management equipment and power utilization system |
| CN111193317A (en) * | 2020-01-22 | 2020-05-22 | 福建工程学院 | Power-down protection circuit for terminal equipment |
| CN112671082A (en) * | 2020-12-30 | 2021-04-16 | 江苏金丰机电有限公司 | Circuit for realizing battery lock work by discharging through capacitor after battery power failure |
| CN112671082B (en) * | 2020-12-30 | 2024-06-14 | 江苏金丰机电有限公司 | Circuit for realizing battery lock operation by discharging through capacitor after battery power failure |
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Application publication date: 20180327 |