CN108233470A - Battery feed circuit - Google Patents
Battery feed circuit Download PDFInfo
- Publication number
- CN108233470A CN108233470A CN201711466662.8A CN201711466662A CN108233470A CN 108233470 A CN108233470 A CN 108233470A CN 201711466662 A CN201711466662 A CN 201711466662A CN 108233470 A CN108233470 A CN 108233470A
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- China
- Prior art keywords
- circuit
- switch
- battery
- load
- electricity
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- 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
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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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
Abstract
The present invention relates to a kind of battery feed circuit and plate circuit, including：First switch, the first conversion circuit, the second conversion circuit, electric quantity detecting circuit and ON-OFF control circuit；Battery is connected respectively with the first switch and second conversion circuit, the first switch is connected by the first conversion circuit with the first load of equipment, second conversion circuit is connected by the second load of equipment with electric quantity detecting circuit, electric quantity detecting circuit is connected respectively with battery and ON-OFF control circuit, and ON-OFF control circuit is connected with the first switch.Above-mentioned battery feed circuit improves the utilization rate of battery.
Description
Technical field
The present invention relates to power supply technique field, more particularly to a kind of battery feed circuit.
Background technology
Technology is increasingly becoming respectively with the high speed development of machinery, electronics and informationized society, efficiently using for battery power
The object of state's primary study.
Traditional battery feed circuit includes protecting circuit and conversion circuit, and battery is in power supply, mainly by battery
Through overprotection circuit and then the device by being converted between high-low pressure direct current (DirectCurrent/Direct Current,
DC/DC) or the conversion circuits such as low pressure difference linear voltage regulator (low dropout regulator, LDO) are converted into the electricity needed
Then pressure is powered to the different loads circuit of equipment.Battery is by battery feed circuit power supply to the device, still, when battery leads to
When crossing traditional battery feed circuit power supply to the device, if sufficient electric energy can not be provided for equipment, battery is needed replacing, electricity
The utilization rate in pond is not high.
Invention content
Based on this, it is necessary to for battery utilization rate it is not high the problem of, a kind of battery feed circuit is provided.
Wherein, an embodiment of the present invention provides a kind of battery feed circuit, including：
First switch, the first conversion circuit, the second conversion circuit, electric quantity detecting circuit and ON-OFF control circuit；
Battery is connected respectively with the first switch and second conversion circuit, and the first switch passes through first turn
It changes circuit with the first load of equipment to be connected, second conversion circuit passes through the second load of equipment and electric quantity detecting circuit
It is connected, electric quantity detecting circuit is connected respectively with battery and ON-OFF control circuit, ON-OFF control circuit and the first switch
It is connected.
Above-mentioned battery feed circuit, by adding first switch before the first conversion circuit, after light loading section
In addition electric quantity detecting circuit, the electricity of battery is detected by electric quantity detecting circuit, and is controlled according to the electricity detected
The state of one switch, when battery capacity does not supply heavy-loaded circuit, can control first switch by ON-OFF control circuit
It disconnects, battery can continue as light loading section power supply, improve the utilization rate of battery.
In one embodiment, the battery feed circuit, the electric quantity detecting circuit detect the electricity of battery respectively
Electricity with detecting second load, the first testing result is sent to ON-OFF control circuit；
The ON-OFF control circuit receives first testing result, and first switch control letter is sent to the first switch
Number.
In one embodiment, the battery feed circuit, further includes：
Protect circuit；
The protection circuit is connected respectively with battery, first switch circuit and the second conversion circuit.
In one embodiment, the battery feed circuit, further includes：Respectively with protecting circuit, the second conversion circuit
And the second switch that electric quantity detecting circuit is connected.
In one embodiment, the battery feed circuit, the electric quantity detecting circuit detect the electricity of battery respectively
Electricity with detecting second load, the second testing result is sent to ON-OFF control circuit；
The ON-OFF control circuit receives second testing result, and first switch control letter is sent to the first switch
Number, send second switch control signal to the second switch.
In one embodiment, the battery feed circuit, second load include storage-type flash memory or code-shaped
The memory of flash memory.
In one embodiment, the battery feed circuit, the first switch and/or second switch are controllable type electricity
Sub switch.
In one embodiment, the battery feed circuit, first conversion circuit and/or the second conversion circuit are
Conversion equipment between high-low pressure direct current.
In one embodiment, the battery feed circuit, first conversion circuit and/or the second conversion circuit are
Low voltage difference line style voltage-stablizer.
The embodiment of the present invention also provides a kind of battery feed circuit, and the electric quantity detecting circuit is used to detect battery respectively
Electricity with detect it is described second load electricity, to ON-OFF control circuit send the first testing result；
The ON-OFF control circuit sends first switch control for receiving first testing result, to the first switch
Signal processed；
The first switch is used to control the load of signal control access power supply circuit according to the first switch；
First conversion circuit is used to be converted into being suitable for by the power supply that battery provides the first electricity of the described first load
Pressure；
Second conversion circuit is used to be converted into being suitable for by the power supply that battery provides the second electricity of the described second load
Pressure.
Description of the drawings
Fig. 1 is the battery feed circuit in the existing individual equipment of one embodiment of the invention；
Fig. 2 is the battery feed circuit of first embodiment of the invention；
Fig. 3 is the battery feed circuit of second embodiment of the invention；
Fig. 4 is the battery feed circuit of third embodiment of the invention；
Fig. 5 is the battery feed circuit of fourth embodiment of the invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Battery feed circuit in the embodiment of the present invention can be used for the echelon of same equipment inner panel level power supply to power.Battery exists
Between multiple equipment echelon utilize after, can also through the embodiment of the present invention in battery feed circuit continue on a single device
Echelon utilization is carried out, further improves the utilization rate of battery.
Fig. 1 is the battery feed circuit in existing individual equipment, battery after overprotection circuit, by DCDC or
The conversion circuits such as LDO are converted into required voltage, then power to different load circuits.But when battery cannot be set for this
When standby interior all loads provide sufficient electrical energy, it is necessary to replace battery, the utilization rate of battery is not high.
Based on existing battery feed circuit, an embodiment of the present invention provides a kind of battery feed circuit, as shown in Fig. 2,
Including：First switch, the first conversion circuit, the second conversion circuit, electric quantity detecting circuit and ON-OFF control circuit；
Battery is connected respectively with the first switch and second conversion circuit, and the first switch passes through first turn
It changes circuit with the first load of equipment to be connected, second conversion circuit passes through the second load of equipment and electric quantity detecting circuit
It is connected, electric quantity detecting circuit is connected respectively with battery and ON-OFF control circuit, ON-OFF control circuit and the first switch
It is connected.
Above-mentioned first load can be the heavy duty part in equipment, and the second load can be the light load portion in equipment
Point.Gently load and heavy duty are all opposite herein, and the numerical value not loaded herein to heavy duty and gently does specific restriction.It is same
In a equipment, impedance matching and the power that can bear just are regarded as heavy duty, resistance with respect to what other loads belonged to " heavy type "
Anti- matching and the power that can bear belong to " light-duty " with respect to other loads and are regarded as gently loading.
In one embodiment, electric quantity detecting circuit can detect the electricity of battery with detecting second load respectively
Electricity sends the first testing result to ON-OFF control circuit；The ON-OFF control circuit receives first testing result, to institute
It states first switch and sends first switch control signal；
Specifically, electric quantity detecting circuit can be connected with light loading section, and electric quantity detecting circuit can detect battery
Real time electrical quantity, and testing result is sent to ON-OFF control circuit, ON-OFF control circuit controls first according to testing result
The opening and closing of switch.As shown in figure 3, when battery capacity is inadequate, can part by a dotted line, first switch is opened,
Battery is only powered for light loading section.
Above-described embodiment, by adding first switch before the first conversion circuit, plus electricity after light loading section
Detection circuit is measured, the electricity of battery is detected by electric quantity detecting circuit, and first switch is controlled according to the electricity detected
State, when battery capacity does not supply heavy-loaded circuit, can pass through ON-OFF control circuit control first switch disconnect, electricity
Pond can continue as light loading section power supply, improve the utilization rate of battery.
In view of power circuit protects electricity there are some destabilizing factors, as shown in figure 4, can also be added after power supply
Road；The protection circuit is connected respectively with battery, first switch circuit and the second conversion circuit.
Above-mentioned protection circuit can prevent destabilizing factor from influencing circuit work, and protecting the type of circuit can be：Overcurrent
Protection, overvoltage protection, overheating protection, no-load protection, short-circuit protection etc..
By protecting circuit that can prevent the component in circuit because of the overcurrent of circuit, overvoltage, overheat, zero load and short circuit
Etc. reasons and damage, the safety of circuit can be improved.
In one embodiment, battery feed circuit is as shown in figure 5, can also include：Respectively with protection circuit, second turn
Change the second switch that circuit and electric quantity detecting circuit are connected.
In above-described embodiment, the original state of first switch and second switch can be closed state, work as electric power detection
Circuit detects that the electricity of battery not enough provides the electricity of enough abundances for equipment, but enough in the first load or the second load
One when electricity is provided, a switch in first switch or second switch can be disconnected by control come the part for equipment
Load supplying.As embodiment, the light loading section of the core of electric quantity detecting circuit and equipment can be connected, in not enough power supply
When, it is powered by the state prior for controlling switch to core load part.
Above-described embodiment by adding first switch before the first conversion circuit, adds before the second conversion circuit
Plus electric quantity detecting circuit after light loading section, the electricity of battery is detected by electric quantity detecting circuit for second switch, and
The state of first switch and second switch is controlled according to the electricity detected, when battery capacity does not supply heavy-loaded circuit
When, first switch can be controlled to disconnect by ON-OFF control circuit, battery can continue as light loading section power supply, improve electricity
The utilization rate in pond.
In one embodiment, the electric quantity detecting circuit can receive the electricity that battery is sent with the described second load respectively
Signal is measured, and first control signal is sent to the first switch, second control signal is sent to the second switch.
In above-described embodiment, electric quantity detecting circuit can control the according to the electric quantity signal that battery and the second load are sent
The state of one switch and second switch.When battery capacity is only enough a part of load supplying in equipment, disconnection can be passed through
First switch or second switch continue to power for the part in equipment.
Above-described embodiment by adding first switch before the first conversion circuit, adds before the second conversion circuit
Plus electric quantity detecting circuit after light loading section, the electricity of battery is detected by electric quantity detecting circuit for second switch, and
The state of first switch and second switch is controlled according to the electricity detected, when battery capacity does not supply heavy-loaded circuit
When, first switch can be controlled to disconnect by ON-OFF control circuit, battery can continue as light loading section power supply, improve electricity
The utilization rate in pond.
In one embodiment, in the battery feed circuit, second load includes memory.Memory one
As gently loaded for the core of equipment, can also be core if battery can not give the heavy duty part of equipment to power
Light load supplying, the memory portion especially Nand Flash (storage-type flash memory) of core will not partly fall because of moment
Electricity and go wrong (the defects of Nand Flash itself can exactly go wrong because of powered-off fault).
In one embodiment, above-mentioned memory can be storage-type flash memory or code-shaped flash memory.
Storage-type flash memory or code-shaped flash memory are all one kind of flash memory, and flash memory is that a kind of electronic type can be clear
Except the form of programmable read-only memory, allow the memory repeatedly wiped or write in operation.This science and technology is mainly used for one
As property data storage and is exchanged between computer and other digital products transmit data, such as memory card and USB flash disk.Compared with hard disk,
Flash memory also has more preferably dynamic shock resistance.These characteristics are exactly the reason of flash memory mobile device is widely used.Flash memory also has one
Item characteristic：It is very reliable when it is made into memory card, it is enough to resist high pressure and extreme temperature even if under water.
In one embodiment, the first switch in the battery feed circuit and/or second switch are single-pole double throw
Switch.
In above-described embodiment, single-pole double-throw switch (SPDT) can control power supply to be exported to two different directions, that is to say, that can
It is used with being used for controlling two parts to load or same equipment can also be controlled to make conversion rotation direction.If above-mentioned power supply supplies
Switch is single-pole double-throw switch (SPDT) used by circuit, then can also be finely divided heavy duty part and light loading section again,
Such as heavy duty part is separated into the first heavy duty part and the second heavy duty part, it is light negative that light loading section is separated into first
Carry part and the second light loading section.It, can be cleverer according to the closed end of battery capacity control single-pole double-throw switch (SPDT) detected
The part of load is accessed in ground living control circuit, can preferably improve the utilization rate of battery.
In another embodiment, the first switch in the battery feed circuit and/or second switch can also be
Controllable type electronic switch.
Controllable type electronic switch in above-described embodiment can control the break-make of electronic switch by electric quantity detecting circuit,
To reach switch/closed state of adjustment controllable type electronic switch in time.Wherein, electric quantity detecting circuit can existing be had
The circuit of electric quantity detection function and switch control functions can realize accurate monitoring and control to battery.
Above-described embodiment, by adding first switch before the first conversion circuit, plus electricity after light loading section
Detection circuit is measured, the electricity of battery is detected by electric quantity detecting circuit, and first switch is controlled according to the electricity detected
State, when battery capacity does not supply heavy-loaded circuit, can pass through ON-OFF control circuit control first switch disconnect, electricity
Pond can continue as light loading section power supply, improve the utilization rate of battery.
In one embodiment, the battery feed circuit, the first switch and/or second switch can be MOS
It manages (metal oxide semiconductor, mos field effect transistor).
Metal-oxide-semiconductor is divided into N-type or p-type, no matter the metal-oxide-semiconductor of N-type or p-type, operation principle essence is the same, be all by
The voltage for being added in input terminal grid carrys out the electric current of control output end drain electrode.Metal-oxide-semiconductor, which is voltage-controlled device, passes through the electricity being added on grid
The characteristic of pressure controller part will not occur as the charge-storage effect caused by base current when triode switchs, therefore
In switch application, the switching speed of metal-oxide-semiconductor is faster than triode.
In one embodiment, first conversion circuit in battery feed circuit and/or the second conversion circuit are height
Conversion equipment (Direct Current/Direct Current, DC/DC) between low-voltage direct.
The direct current of input is changed into alternating current by conversion equipment between above-mentioned high-low pressure direct current by self-maintained circuit,
Again by being reconverted into direct current electricity output after transformer change voltage or being converted to alternating current by voltage doubling rectifing circuit
High voltage direct current electricity output.
Above-described embodiment, by adding first switch before the first conversion circuit, plus electricity after light loading section
Detection circuit is measured, the electricity of battery is detected by electric quantity detecting circuit, and first switch is controlled according to the electricity detected
State, when battery capacity does not supply heavy-loaded circuit, can pass through ON-OFF control circuit control first switch disconnect, electricity
Pond can continue as light loading section power supply, improve the utilization rate of battery.
In another embodiment, first conversion circuit in battery feed circuit and/or the second conversion circuit are
Low voltage difference line style voltage-stablizer (LDO low dropout linear regulator, LDO).
Above-mentioned low voltage difference line style voltage-stablizer, controls available for electric current main channel, is integrated on chip with being led on extremely low line
Be powered the mos field effect transistor hindered, the hardware such as Schottky diode, sample resistance and divider resistance electricity
Road also has the function of such as load short circuits protection, overvoltage shutdown, crosses Thermal shutdown, reverse connecting protection others.
Above-described embodiment, by adding first switch before the first conversion circuit, plus electricity after light loading section
Detection circuit is measured, the electricity of battery is detected by electric quantity detecting circuit, and first switch is controlled according to the electricity detected
State, when battery capacity does not supply heavy-loaded circuit, can pass through ON-OFF control circuit control first switch disconnect, electricity
Pond can continue as light loading section power supply, improve the utilization rate of battery.
Battery feed circuit in the embodiment of the present invention, the electric quantity detecting circuit for respectively detection battery electricity with
The electricity of second load is detected, the first testing result is sent to ON-OFF control circuit；
The ON-OFF control circuit sends first switch control for receiving first testing result, to the first switch
Signal processed；The first switch is used to control the load of signal control access power supply circuit according to the first switch；Described
One conversion circuit is used to be converted into being suitable for by the power supply that battery provides the first voltage of the described first load；Second conversion
Circuit is used to be converted into being suitable for by the power supply that battery provides the second voltage of the described second load.
Above-mentioned ON-OFF control circuit can be integrated on plate circuit, and battery interface can also be included on plate circuit；Institute
Battery can be accessed by stating battery interface, and power supply is provided for the battery feed circuit.
Above-described embodiment all can be integrated in battery and battery feed circuit on plate circuit, reduce for electric installation
Volume.By adding first switch before the first conversion circuit, plus electric quantity detecting circuit after light loading section, lead to
Electric quantity detecting circuit is crossed to detect the electricity of battery, and the state of first switch is controlled according to the electricity detected, works as battery
When electricity does not supply heavy-loaded circuit, first switch can be controlled to disconnect by ON-OFF control circuit, battery can continue as
Light loading section power supply improves the utilization rate of battery.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in combine in an appropriate manner.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of battery feed circuit, which is characterized in that including：
First switch, the first conversion circuit, the second conversion circuit, electric quantity detecting circuit and ON-OFF control circuit；
Battery is connected respectively with the first switch and second conversion circuit, and the first switch passes through the first conversion electricity
Road is connected with the first load of equipment, and second conversion circuit is connected by the second load of equipment with electric quantity detecting circuit
It connects, electric quantity detecting circuit is connected respectively with battery and ON-OFF control circuit, and ON-OFF control circuit is connected with the first switch
It connects.
2. battery feed circuit according to claim 1, which is characterized in that the electric quantity detecting circuit detects battery respectively
Electricity with detect it is described second load electricity, to ON-OFF control circuit send the first testing result；
The ON-OFF control circuit receives first testing result, and first switch control signal is sent to the first switch.
3. battery feed circuit according to claim 1, which is characterized in that further include：
Protect circuit；
The protection circuit is connected respectively with battery, first switch circuit and the second conversion circuit.
4. battery feed circuit according to claim 3, which is characterized in that further include：Respectively with protection circuit, second turn
Change the second switch that circuit and electric quantity detecting circuit are connected.
5. battery feed circuit according to claim 4, which is characterized in that the electric quantity detecting circuit detects battery respectively
Electricity with detect it is described second load electricity, to ON-OFF control circuit send the second testing result；
The ON-OFF control circuit receives second testing result, and first switch control signal is sent to the first switch,
Second switch control signal is sent to the second switch.
6. battery feed circuit according to claim 1, which is characterized in that it is described second load include storage-type flash memory or
The memory of code-shaped flash memory.
7. battery feed circuit according to claim 4, which is characterized in that the first switch and/or second switch are
Controllable type electronic switch.
8. battery feed circuit according to claim 1, which is characterized in that first conversion circuit and/or second turn
Change circuit conversion equipment between high-low pressure direct current.
9. battery feed circuit according to claim 1, which is characterized in that first conversion circuit and/or second turn
Circuit is changed as low voltage difference line style voltage-stablizer.
10. battery feed circuit according to claim 1, which is characterized in that the electric quantity detecting circuit is used to examine respectively
Electricity of the electricity of battery with detecting second load is surveyed, the first testing result is sent to ON-OFF control circuit；
The ON-OFF control circuit sends first switch control letter for receiving first testing result, to the first switch
Number；
The first switch is used to control the load of signal control access power supply circuit according to the first switch；
First conversion circuit is used to be converted into being suitable for by the power supply that battery provides the first voltage of the described first load；
Second conversion circuit is used to be converted into being suitable for by the power supply that battery provides the second voltage of the described second load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466662.8A CN108233470A (en) | 2017-12-28 | 2017-12-28 | Battery feed circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466662.8A CN108233470A (en) | 2017-12-28 | 2017-12-28 | Battery feed circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108233470A true CN108233470A (en) | 2018-06-29 |
Family
ID=62646698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711466662.8A Pending CN108233470A (en) | 2017-12-28 | 2017-12-28 | Battery feed circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108233470A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1462497A (en) * | 2001-03-08 | 2003-12-17 | 精工爱普生株式会社 | Battery-driven electronic device and its controlling method |
| CN1841898A (en) * | 2005-03-31 | 2006-10-04 | 三美电机株式会社 | Multi-output type DC/DC converter and its control method |
| CN1972072A (en) * | 2005-11-24 | 2007-05-30 | 台达电子工业股份有限公司 | Parallel uninterrupted power supply system |
| CN102255395A (en) * | 2011-06-27 | 2011-11-23 | 华为终端有限公司 | Electronic equipment and method for supplying power to at least two different loads by single power supply |
| CN203086179U (en) * | 2012-12-25 | 2013-07-24 | 比亚迪股份有限公司 | Double-voltage DC supply system |
| CN207910498U (en) * | 2017-12-28 | 2018-09-25 | 广州邦讯信息系统有限公司 | Battery feed circuit and plate circuit |
-
2017
- 2017-12-28 CN CN201711466662.8A patent/CN108233470A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1462497A (en) * | 2001-03-08 | 2003-12-17 | 精工爱普生株式会社 | Battery-driven electronic device and its controlling method |
| CN1841898A (en) * | 2005-03-31 | 2006-10-04 | 三美电机株式会社 | Multi-output type DC/DC converter and its control method |
| CN1972072A (en) * | 2005-11-24 | 2007-05-30 | 台达电子工业股份有限公司 | Parallel uninterrupted power supply system |
| CN102255395A (en) * | 2011-06-27 | 2011-11-23 | 华为终端有限公司 | Electronic equipment and method for supplying power to at least two different loads by single power supply |
| CN203086179U (en) * | 2012-12-25 | 2013-07-24 | 比亚迪股份有限公司 | Double-voltage DC supply system |
| CN207910498U (en) * | 2017-12-28 | 2018-09-25 | 广州邦讯信息系统有限公司 | Battery feed circuit and plate circuit |
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Application publication date: 20180629 |
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| RJ01 | Rejection of invention patent application after publication |