CN106300561A - A kind of switch power supply system - Google Patents
A kind of switch power supply system Download PDFInfo
- Publication number
- CN106300561A CN106300561A CN201610918263.XA CN201610918263A CN106300561A CN 106300561 A CN106300561 A CN 106300561A CN 201610918263 A CN201610918263 A CN 201610918263A CN 106300561 A CN106300561 A CN 106300561A
- Authority
- CN
- China
- Prior art keywords
- chip
- power supply
- supply system
- charge controlling
- switch 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.)
- Pending
Links
- 230000009466 transformation Effects 0.000 claims abstract description 28
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1213—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for DC-DC converters
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of switch power supply system, including electric fuse, DC source, protection circuit, charge controlling chip, battery, switching on and shutting down control circuit, direct current transformation chip；Described electric fuse connects described DC source, described DC source connects described charge controlling chip, described charge controlling chip connects described battery, described charge controlling chip is also connected with described switching on and shutting down control circuit, described switching on and shutting down control circuit connects described direct current transformation chip, is additionally provided with voltage input selector switch between described charge controlling chip and described direct current transformation chip.The switch power supply system of the present invention utilizes charge controlling chip and voltage input selector switch to control charging and discharging state and circuit power supply mode, utilizes protection circuit to detect supply voltage, the power supply of switching on and shutting down control circuit control system, the safe operation of protection system.
Description
Technical field
The present invention relates to field of power supplies, particularly to a kind of switch power supply system.
Background technology
Power reflection meter is commonly used to measure radio frequency (RF) or the power of microwave frequency (MW) signal.Typical power reflection
Meter uses power detector or transducer, in order to RF or MW power is converted to the electric parameter that can easily measure.Power reflection meter
In the most eurypalynous RF and MW system, also there is application.And radio-frequency power reflexometer typically requires specific confession in use
Electricity power supply is that it is powered, and existing power supply is not well positioned to meet power demands, is therefore badly in need of a kind of energy of exploitation
Output specific voltage, chargeable, safe and reliable Switching Power Supply.
Summary of the invention
The invention reside in the above-mentioned deficiency overcoming prior art, it is provided that one can export specific voltage, chargeable, safety can
The switch power supply system leaned on.
In order to realize foregoing invention purpose, the technical solution used in the present invention is:
A kind of switch power supply system, including electric fuse, DC source, input protection circuit, charge controlling chip, battery, switch
Machine control circuit, direct current transformation chip；Described electric fuse connects described DC source, and described input protection circuit is for when detection
To input voltage excessive time, control described blown fuse, protect the work safety of described DC source, described DC source is even
Connecing described charge controlling chip, described charge controlling chip connects described battery, and described charge controlling chip is used for controlling described
The charging modes of battery, described charge controlling chip is also connected with described switching on and shutting down control circuit, and described switching on and shutting down control circuit is even
Connecing described direct current transformation chip, described switching on and shutting down control circuit is for controlling start or the shutdown of described switch power supply system, institute
Stating direct current transformation chip for the voltage of input is carried out decompression transformation so that it is output required voltage value, described charging controls
Being additionally provided with voltage input selector switch between chip and described direct current transformation chip, described voltage input selector switch is used for selecting
Select and powered by described battery or powered by described external power source.
Further, also including manostat, described manostat connects described charge controlling chip and described protection circuit, uses
In the voltage that offer is stable.Improve the job stability of described protection circuit and described charge controlling chip.
Further, also include that output protection circuit, described output protection circuit are connected to described switching on and shutting down control circuit
And between described direct current transformation chip, for when the voltage being input to described direct current transformation chip is excessive, by described switch
Machine control circuit controls the shutdown of described switch power supply system.
Further, described required voltage value is at least one in+5.2V ,+3.3V ,+12.5V.
Further, described charge controlling chip is BQ2954 chip.
Further, described switching on and shutting down control circuit uses power management chip LTC2951.
Further, described direct current transformation chip is LTC1876EG chip.
Further, described battery is lithium ion battery.
Further, described manostat is LM7805 chip.
Compared with prior art, beneficial effects of the present invention
1, the switch power supply system of the present invention utilize charge controlling chip and voltage input selector switch control charging and discharging state and
Circuit power supply mode, utilizes protection circuit to detect supply voltage, the power supply of switching on and shutting down control circuit control system, protection system
Safe operation.
2, the switch power supply system of the present invention passes through manostat stabilizing circuit voltage, and protection system runs safety.
3, the switch power supply system of the present invention by output protection circuit detection direct current transformation chip voltage too high time, control
Described system power supply turns off, and protection system runs safety.
Accompanying drawing explanation
Fig. 1 show the block diagram of the switch power supply system of the present invention.
Fig. 2 show the switch power supply system block diagram with manostat of the present invention.
Fig. 3 show the switch power supply system block diagram with output protection circuit of the present invention.
Fig. 4 show the switch power supply system block diagram of a specific embodiment of the present invention.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.But this should be interpreted as the present invention
The scope of above-mentioned theme is only limitted to below example, and all technology realized based on present invention belong to the model of the present invention
Enclose.
Embodiment 1:
Fig. 1 show the block diagram of switch power supply system first embodiment of the present invention, including electric fuse, DC source, input
Protection circuit, charge controlling chip, battery, switching on and shutting down control circuit, direct current transformation chip；Described electric fuse connects described direct current
Power supply, described input protection circuit for when detecting that input voltage is excessive, controls described blown fuse, protect described directly
The work safety of stream power supply, described DC source connects described charge controlling chip, and described charge controlling chip connects described electricity
Pond, described charge controlling chip is for controlling the charging modes of described battery, and described charge controlling chip is also connected with described switch
Machine control circuit, described switching on and shutting down control circuit connects described direct current transformation chip, and described switching on and shutting down control circuit is used for controlling
The start of described switch power supply system or shutdown, described direct current transformation chip, for the voltage of input is carried out decompression transformation, makes
It exports required voltage value, is additionally provided with voltage input and selects between described charge controlling chip and described direct current transformation chip
Switch, described voltage input selector switch is powered by described battery for selection or is powered by described external power source.
The switch power supply system of the present invention utilizes charge controlling chip and voltage input selector switch to control charging and discharging state
With circuit power supply mode, utilize protection circuit to detect supply voltage, the power supply of switching on and shutting down control circuit control system, protect system
Safe operation.
In a detailed description of the invention, referring to Fig. 2, also including manostat, described manostat connects described charging and controls
Chip and described protection circuit, be used for providing stable voltage.
The switch power supply system of the present invention passes through manostat stabilizing circuit voltage, and protection system runs safety.
In a detailed description of the invention, referring to Fig. 3, also including output protection circuit, described output protection circuit connects
Between described switching on and shutting down control circuit and described direct current transformation chip, for when the voltage being input to described direct current transformation chip
Time excessive, control described switch power supply system by described switching on and shutting down control circuit and shut down.
The switch power supply system of the present invention by output protection circuit detection direct current transformation chip voltage too high time, control institute
Stating system power supply to turn off, protection system runs safety.
Fig. 4 show the switch power supply system block diagram of a specific embodiment of the present invention, concrete, described needs
Magnitude of voltage is at least one in+5.2V ,+3.3V ,+12.5V.
Concrete, described charge controlling chip is BQ2954 chip.
Concrete, described switching on and shutting down control circuit uses power management chip LTC2951.
Concrete, described direct current transformation chip is LTC1876EG chip.
Concrete, described battery is lithium ion battery.
Concrete, described manostat is LM7805 chip.
Above in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail, but on the present invention is not restricted to
Stating embodiment, in the case of without departing from the spirit and scope of claims hereof, those skilled in the art can make
Go out various amendment or remodeling.
Claims (9)
1. a switch power supply system, it is characterised in that include electric fuse, DC source, protection circuit, charge controlling chip,
Battery, switching on and shutting down control circuit, direct current transformation chip；Described electric fuse connects described DC source, described input protection circuit
For when detecting that input voltage is excessive, control described blown fuse, protect the work safety of described DC source, described
DC source connects described charge controlling chip, and described charge controlling chip connects described battery, and described charge controlling chip is used
In the charging modes of the described battery of control, described charge controlling chip is also connected with described switching on and shutting down control circuit, described switching on and shutting down
Control circuit connects described direct current transformation chip, and described switching on and shutting down control circuit is for controlling the start of described switch power supply system
Or shutdown, described direct current transformation chip is for carrying out decompression transformation to the voltage of input so that it is output required voltage value, described
Being additionally provided with voltage input selector switch between charge controlling chip and described direct current transformation chip, the input selection of described voltage is opened
Close and powered by described battery for selection or powered by described external power source.
Switch power supply system the most according to claim 1, it is characterised in that also include manostat, described manostat connects
Described charge controlling chip and described protection circuit, be used for providing stable voltage.
Switch power supply system the most according to claim 1, it is characterised in that also include output protection circuit, described output
Protection circuit is connected between described switching on and shutting down control circuit and described direct current transformation chip, for when being input to the change of described direct current
When the voltage of pressure chip is excessive, controls described switch power supply system by described switching on and shutting down control circuit and shut down.
Switch power supply system the most according to claim 1, it is characterised in that described required voltage value be+5.2V ,+
At least one in 3.3V ,+12.5V.
Switch power supply system the most according to claim 1, it is characterised in that described charge controlling chip is BQ2954 core
Sheet.
Switch power supply system the most according to claim 1, it is characterised in that described switching on and shutting down control circuit uses power supply pipe
Reason chip LTC2951.
Switch power supply system the most according to claim 1, it is characterised in that described direct current transformation chip is LTC1876EG
Chip.
Switch power supply system the most according to claim 1, it is characterised in that described battery is lithium ion battery.
Switch power supply system the most according to claim 2, it is characterised in that described manostat is LM7805 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918263.XA CN106300561A (en) | 2016-10-21 | 2016-10-21 | A kind of switch power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918263.XA CN106300561A (en) | 2016-10-21 | 2016-10-21 | A kind of switch power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106300561A true CN106300561A (en) | 2017-01-04 |
Family
ID=57719239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610918263.XA Pending CN106300561A (en) | 2016-10-21 | 2016-10-21 | A kind of switch power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106300561A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638768A (en) * | 2018-12-21 | 2019-04-16 | 成都前锋电子仪器有限责任公司 | A kind of switching power circuit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202042935U (en) * | 2011-05-20 | 2011-11-16 | 成都前锋电子仪器有限责任公司 | Switching power supply unit of power meter |
| CN202206151U (en) * | 2011-08-10 | 2012-04-25 | 安徽省高程电子科技有限公司 | Lithium battery combination power supply system |
| JP2013099040A (en) * | 2011-10-28 | 2013-05-20 | Rohm Co Ltd | Charging circuit and electronic equipment using the same |
| CN203368107U (en) * | 2013-08-09 | 2013-12-25 | 向智勇 | Charger with overvoltage and overcurrent protection function |
| CN204012789U (en) * | 2014-06-12 | 2014-12-10 | 湖州上电科电器科学研究有限公司 | Vehicle-mounted monitoring platform power administration module |
| CN104393629A (en) * | 2014-09-30 | 2015-03-04 | 中国电子科技集团公司第四十一研究所 | Intelligent power supply management circuit of digital oscillograph |
| CN204992701U (en) * | 2015-09-18 | 2016-01-20 | 东莞市巨星电池有限公司 | Quick charging device of portable power source |
| CN206180620U (en) * | 2016-10-21 | 2017-05-17 | 成都前锋电子仪器有限责任公司 | Switching power supply system |
-
2016
- 2016-10-21 CN CN201610918263.XA patent/CN106300561A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202042935U (en) * | 2011-05-20 | 2011-11-16 | 成都前锋电子仪器有限责任公司 | Switching power supply unit of power meter |
| CN202206151U (en) * | 2011-08-10 | 2012-04-25 | 安徽省高程电子科技有限公司 | Lithium battery combination power supply system |
| JP2013099040A (en) * | 2011-10-28 | 2013-05-20 | Rohm Co Ltd | Charging circuit and electronic equipment using the same |
| CN203368107U (en) * | 2013-08-09 | 2013-12-25 | 向智勇 | Charger with overvoltage and overcurrent protection function |
| CN204012789U (en) * | 2014-06-12 | 2014-12-10 | 湖州上电科电器科学研究有限公司 | Vehicle-mounted monitoring platform power administration module |
| CN104393629A (en) * | 2014-09-30 | 2015-03-04 | 中国电子科技集团公司第四十一研究所 | Intelligent power supply management circuit of digital oscillograph |
| CN204992701U (en) * | 2015-09-18 | 2016-01-20 | 东莞市巨星电池有限公司 | Quick charging device of portable power source |
| CN206180620U (en) * | 2016-10-21 | 2017-05-17 | 成都前锋电子仪器有限责任公司 | Switching power supply system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638768A (en) * | 2018-12-21 | 2019-04-16 | 成都前锋电子仪器有限责任公司 | A kind of switching power circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
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| RJ01 | Rejection of invention patent application after publication |