CN106602700A - Power-down standby circuit - Google Patents
Power-down standby circuit Download PDFInfo
- Publication number
- CN106602700A CN106602700A CN201610915454.0A CN201610915454A CN106602700A CN 106602700 A CN106602700 A CN 106602700A CN 201610915454 A CN201610915454 A CN 201610915454A CN 106602700 A CN106602700 A CN 106602700A
- Authority
- CN
- China
- Prior art keywords
- electric capacity
- resistance
- power supply
- boost
- oxide
- 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
- 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
- H02J9/061—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 for DC powered loads
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- 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
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention provides a power-down standby circuit, which comprises a standby power supply module connected with the input end of a power supply, a boost module connected with a standby power supply, and a driving control circuit used for supplying a driving signal to the grid electrode of an MOS tube in the boost module. The power-down standby circuit further comprises a voltage stabilizing module arranged between the standby power supply module and the boost module. The boost module simultaneously supplies the internal operating voltage of the power-down standby circuit. The standby power supply module comprises a capacitor. According to the technical scheme of the invention, the capacitor is used for storing energy, so that the charging and discharging process is efficiently and rapidly realized. The long-term float charging phenomenon when the external power supply is in the normal state can be avoided. Meanwhile, the voltage boosting is directly conducted by the boost module and then a large current is outputted. Therefore, the large current can be stored by effectively utilizing the capacitor.
Description
Technical field
The present invention relates to field of circuit technology, and in particular to a kind of power down stand-by circuit.
Background technology
In data acquisition and DATA REASONING, in order to ensure the normal recordings of data during improper power down, generally use and fill
Battery is used as stand-by power supply.And rechargeable battery in external power supply because long-term work is in floating charge state so that its life-span compared with
It is short, periodic replacement is needed, especially in the case where needing high current to work, battery life further shortens.Using conventional capacitance
As short time stand-by power supply, conventional circuit structure can cause capacitance charge utilization rate relatively low, add transformer to cause circuit
Complicate, efficiency and economy are all relatively low.
The content of the invention
For above-mentioned prior art, present invention aim at providing a kind of power down stand-by circuit, solve prior art and use
Rechargeable battery is used as stand-by power supply service life and the technical problem that cannot provide High-current output.
To reach above-mentioned purpose, the technical solution used in the present invention is as follows：
A kind of power down stand-by circuit, including the standby power supply module and stand-by power supply connection being connected with power input
Boost boost modules, the drive control circuit for providing drive signal for metal-oxide-semiconductor grid in boost boost modules, the power down is standby
The Voltage stabilizing module being arranged between standby power supply module and boost boost modules is also included with circuit, boost boost modules are simultaneously
The internal operating voltages of power down stand-by circuit are provided.
Further, the standby power supply module includes the electric capacity C2 and electric capacity C4 of series connection, and series capacitance group one end is grounded,
The other end is connected to power input by the diode D1 of resistance R1 and Opposite direction connection, and electric capacity C2 and electric capacity C4 are parallel with respectively
Resistance R2 and resistance R3, the ungrounded end of series capacitance group is standby power supply module output end, and standby power supply module output end is also
It is grounded by normal polarity electric capacity C1 and electric capacity C3 respectively.The electric capacity C2 and electric capacity C4 are using identical and larger super of capacitance
Electric capacity；Resistance R2 and resistance R3 is average circuit, and respectively electric capacity C2 and electric capacity C4 is provided and pressed.Electric capacity C1 and electric capacity C3 is constituted
For filter capacitor.
Further, the boost boost modules include the inductance L1 being connected with standby power supply module output end, inductance L1
The other end boost signal is exported by forward diode D2, boost signal exported by inductance L2, and the output end of inductance L2 is also
It is grounded by polar capacitor C5 and electric capacity C6, the negative pole of the diode D2 connects the drain electrode of N-type metal-oxide-semiconductor Q2, N-type metal-oxide-semiconductor Q2
Source electrode be grounded by resistance R4, internal operating voltages VCC is gone back in the output of the positive pole of diode D2.N-type metal-oxide-semiconductor is in drive control electricity
Complete to switch under the control on road and close, make inductance L2 and electric capacity C6 complete impulse electricity work, improve output voltage, further make
Obtain output current to be lifted, polar capacitor C5 was used for noise filtering.
Further, the drive control circuit includes integrated chip U1, and using UCC2831, its OUT terminal passes through resistance
R10 is connected to metal-oxide-semiconductor grid in boost boost modules, and resistance R13 is connected between its REF end and RC ends, and its REF end passes through electric capacity
C13 is grounded, and its REF end is grounded by electric capacity C12, and its VCC end is provided by standby power supply module, and its COM end passes sequentially through electric capacity
C9 and resistance R8 are connected to its FB end, and between its COM end and FB ends electric capacity C7 is also associated with, and its FB end passes through respectively resistance R11
It is grounded with electric capacity C10, its FB end is also connected to internal operating voltages VCC by resistance R9, its FB end also passes through respectively resistance R11
With electric capacity C10 ground connection, its CS end is connected to the source electrode of metal-oxide-semiconductor Q2.The main current signal received by CS ends on metal-oxide-semiconductor, is led to
UCC2831 output pwm signals are crossed, the grid of metal-oxide-semiconductor is controlled.
Further, the Voltage stabilizing module includes N-type metal-oxide-semiconductor Q1, the drain electrode connection standby power supply module output of metal-oxide-semiconductor Q1
End, its source electrode connection drive control circuit input end；Voltage stabilizing module also includes three-terminal voltage-stabilizing diode Q3；The diode Q3 is just
Pole is connected to the grid of metal-oxide-semiconductor Q3, the minus earth of diode Q3, the reference voltage end of diode Q3 pass sequentially through electric capacity C8 and
Resistance R12 is connected to internal operating voltages VCC, and the negative pole of diode Q3 passes sequentially through resistance R7 and resistance R5 is connected to metal-oxide-semiconductor
The source electrode of Q1.By the grid and source voltage of the stable metal-oxide-semiconductor Q1 of three-terminal voltage-stabilizing diode Q3, it is ensured that boost boost modules
The stability of input voltage.
Further, the three-terminal voltage-stabilizing diode Q3 adopts the TL431 of st companies.
Compared with prior art, beneficial effects of the present invention：
1. energy storage is carried out using electric capacity, carry out efficiently quickly discharge and recharge, it is to avoid be when externally fed is normal long-term floating
Fill.
2. high current, effectively utilizes electric capacity storage high current are directly boosted and exported using boost.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine by any way.
Embodiment
A kind of power down stand-by circuit, including the standby power supply module and stand-by power supply connection being connected with power input
Boost boost modules, the drive control circuit for providing drive signal for metal-oxide-semiconductor grid in boost boost modules, the power down is standby
The Voltage stabilizing module being arranged between standby power supply module and boost boost modules is also included with circuit, boost boost modules are simultaneously
The internal operating voltages of power down stand-by circuit are provided.The standby power supply module includes electric capacity.
Further, the standby power supply module includes the electric capacity C2 and electric capacity C4 of series connection, and series capacitance group one end is grounded,
The other end is connected to power input by the diode D1 of resistance R1 and Opposite direction connection, and electric capacity C2 and electric capacity C4 are parallel with respectively
Resistance R2 and resistance R3, the ungrounded end of series capacitance group is standby power supply module output end, and standby power supply module output end is also
It is grounded by normal polarity electric capacity C1 and electric capacity C3 respectively.Electric capacity C2 and electric capacity C4 pressure voltages can be using 2.7V, capacitance
220F.Resistance R2 and resistance R3 adopts 1M ohms.
Further, the boost boost modules include the inductance L1 being connected with standby power supply module output end, inductance L1
The other end boost signal is exported by forward diode D2, boost signal exported by inductance L2, and the output end of inductance L2 is also
It is grounded by polar capacitor C5 and electric capacity C6, the negative pole of the diode D2 connects the drain electrode of N-type metal-oxide-semiconductor Q2, N-type metal-oxide-semiconductor Q2
Source electrode be grounded by resistance R4, internal operating voltages VCC is gone back in the output of the positive pole of diode D2.Inductance L1 adopts 2.2 μ H, electric capacity
C6 adopts 2200 μ F, filtering to adopt 0.1 μ F with polar capacitor C5.
Further, the drive control circuit includes integrated chip U1, and using UCC2831, its OUT terminal passes through resistance
R10 is connected to metal-oxide-semiconductor grid in boost boost modules, and resistance R13 is connected between its REF end and RC ends, and its REF end passes through electric capacity
C13 is grounded, and its REF end is grounded by electric capacity C12, and its VCC end is provided by standby power supply module, and its COM end passes sequentially through electric capacity
C9 and resistance R8 are connected to its FB end, and between its COM end and FB ends electric capacity C7 is also associated with, and its FB end passes through respectively resistance R11
It is grounded with electric capacity C10, its FB end is also connected to internal operating voltages VCC by resistance R9, its FB end also passes through respectively resistance R11
With electric capacity C10 ground connection, its CS end is connected to the source electrode of metal-oxide-semiconductor Q2.Switching frequency has UCC2831 controls, it is possible to use 100KHz
Operating frequency.
Further, the Voltage stabilizing module includes N-type metal-oxide-semiconductor Q1, the drain electrode connection standby power supply module output of metal-oxide-semiconductor Q1
End, its source electrode connection drive control circuit input end；Voltage stabilizing module also includes three-terminal voltage-stabilizing diode Q3；The diode Q3 is just
Pole is connected to the grid of metal-oxide-semiconductor Q3, the minus earth of diode Q3, the reference voltage end of diode Q3 pass sequentially through electric capacity C8 and
Resistance R12 is connected to internal operating voltages VCC, and the negative pole of diode Q3 passes sequentially through resistance R7 and resistance R5 is connected to metal-oxide-semiconductor
The source electrode of Q1.
Further, the three-terminal voltage-stabilizing diode Q3 adopts the TL431 of st companies.When the input of boost boost modules
Voltage automatically shuts down when being less than 3.5V and carries out circuit protection.
When being arranged using above-mentioned parameter, the output voltage of standby power supply module can provide 5A when 5V drops to 3.5V
High current 10s, enough miscellaneous equipments complete the time of data storage.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Belong to those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.
Claims (6)
1. a kind of power down stand-by circuit, it is characterised in that include standby power supply module and the standby electricity being connected with power input
The boost boost modules of source connection, the drive control circuit for providing drive signal for metal-oxide-semiconductor grid in boost boost modules, institute
State power down stand-by circuit and also include the Voltage stabilizing module being arranged between standby power supply module and boost boost modules, boost boostings
Module provides the internal operating voltages of power down stand-by circuit simultaneously, and the standby power supply module includes electric capacity.
2. a kind of power down stand-by circuit according to claim 1, it is characterised in that the standby power supply module includes series connection
Capacitance identical electric capacity C2 and electric capacity C4, series capacitance group one end ground connection, the other end pass through resistance R1 and Opposite direction connection two
Pole pipe D1 is connected to power input, and electric capacity C2 and electric capacity C4 is parallel with respectively resistance R2 and resistance R3, series capacitance group it is non-
Earth terminal is standby power supply module output end, and standby power supply module output end also passes through respectively normal polarity electric capacity C1 and electric capacity C3
Ground connection.
3. a kind of power down stand-by circuit according to claim 1, it is characterised in that the boost boost modules include with
The other end of the inductance L1 of standby power supply module output end connection, inductance L1 exports boost signal by forward diode D2, rises
Pressure signal is exported by inductance L2, and the output end of inductance L2 is also grounded by polar capacitor C5 and electric capacity C6, the diode D2
Negative pole connect the drain electrode of N-type metal-oxide-semiconductor Q2, the source electrode of N-type metal-oxide-semiconductor Q2 is grounded by resistance R4, and the positive pole of diode D2 is exported
Also internal operating voltages VCC.
4. a kind of power down stand-by circuit according to claim 3, it is characterised in that the drive control circuit includes integrated
Chip U1, using UCC2831, its OUT terminal is connected to metal-oxide-semiconductor grid in boost boost modules by resistance R10, its REF end and
Connect resistance R13 between RC ends, its REF end is grounded by electric capacity C13, and its REF end is grounded by electric capacity C12, and its VCC end is by standby
Power module is provided, and its COM end passes sequentially through electric capacity C9 and resistance R8 and is connected to its FB end, also connects between its COM end and FB ends
Electric capacity C7 is connected to, its FB end is grounded respectively by resistance R11 and electric capacity C10, and its FB end is also connected to internal work by resistance R9
Make voltage VCC, also respectively by resistance R11 and electric capacity C10 ground connection, its CS end is connected to the source electrode of metal-oxide-semiconductor Q2 at its FB end.
5. a kind of power down stand-by circuit according to claim 1, it is characterised in that the Voltage stabilizing module includes N-type metal-oxide-semiconductor
The drain electrode connection standby power supply module output end of Q1, metal-oxide-semiconductor Q1, its source electrode connection drive control circuit input end；Voltage stabilizing module
Also include three-terminal voltage-stabilizing diode Q3；The diode Q3 positive poles are connected to the grid of metal-oxide-semiconductor Q3, and the negative pole of diode Q3 connects
Ground, the reference voltage end of diode Q3 passes sequentially through electric capacity C8 and resistance R12 and is connected to internal operating voltages VCC, diode Q3
Negative pole pass sequentially through resistance R7 and resistance R5 is connected to the source electrode of metal-oxide-semiconductor Q1.
6. a kind of power down stand-by circuit according to claim 1, it is characterised in that the three-terminal voltage-stabilizing diode Q3 is adopted
The TL431 of st companies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915454.0A CN106602700A (en) | 2016-10-20 | 2016-10-20 | Power-down standby circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915454.0A CN106602700A (en) | 2016-10-20 | 2016-10-20 | Power-down standby circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106602700A true CN106602700A (en) | 2017-04-26 |
Family
ID=58556126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610915454.0A Withdrawn CN106602700A (en) | 2016-10-20 | 2016-10-20 | Power-down standby circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106602700A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111090325A (en) * | 2019-11-15 | 2020-05-01 | 苏州浪潮智能科技有限公司 | Hot standby power switching system based on storage system |
-
2016
- 2016-10-20 CN CN201610915454.0A patent/CN106602700A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111090325A (en) * | 2019-11-15 | 2020-05-01 | 苏州浪潮智能科技有限公司 | Hot standby power switching system based on storage system |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170426 |
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| WW01 | Invention patent application withdrawn after publication |