CN209593089U - Power supply Combining Circuit and electrical equipment - Google Patents
Power supply Combining Circuit and electrical equipment Download PDFInfo
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- CN209593089U CN209593089U CN201920211923.XU CN201920211923U CN209593089U CN 209593089 U CN209593089 U CN 209593089U CN 201920211923 U CN201920211923 U CN 201920211923U CN 209593089 U CN209593089 U CN 209593089U
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Abstract
The utility model discloses a kind of power supply Combining Circuit and electrical equipments, wherein, the power supply Combining Circuit includes: at least two-way power branch, it include a metal-oxide-semiconductor per the power branch described all the way, the first end of each metal-oxide-semiconductor is respectively connected with an external power supply, the second end of each metal-oxide-semiconductor homogeneously connects, and the control terminal of each metal-oxide-semiconductor is respectively connected with a combining control signal.Above-mentioned power supply Combining Circuit is combined using metal-oxide-semiconductor instead of diode, greatly reduces combining power consumption so that the pressure drop of Combining Circuit is the conduction voltage drop of metal-oxide-semiconductor by the in due course conducting that combining control signal controls metal-oxide-semiconductor.
Description
Technical field
The utility model relates to power circuit techniques fields, and in particular to a kind of power supply Combining Circuit and electrical equipment.
Background technique
The method of existing DC power supply Combining Circuit is combined using multiple diodes, as shown in Figure 1, Multi-path electricity
Source passes through a diode respectively and is followed by one, is added in load, as long as then subsequent load can be just with the presence of power supply all the way
Often work, because of the one-way conduction characteristic of diode, not will form short-circuit loop electricity when multiple power supplies and when depositing between each power supply
Stream provides electric current by the larger power supply of fractional voltage Of, if voltage difference between each power supply if voltage differences are larger between each power supply
It is different smaller, then electric current is provided jointly by each power supply.However, during diode current flow, the pressure that is formed on corresponding diode
Drop it is larger, it is larger in diode power consumption when overloaded, biggish heat can be generated, so that system power dissipation is significantly increased.
Utility model content
Based on this, the utility model embodiment provides a kind of power supply Combining Circuit and electrical equipment, to solve existing skill
The big defect of power consumption caused by being combined in art using diode.
According in a first aspect, the utility model embodiment provides a kind of power supply Combining Circuit, comprising: at least two-way power supply
Branch, includes a metal-oxide-semiconductor per the power branch described all the way, and the first end of each metal-oxide-semiconductor is respectively connected with outside one
Power supply is connect, the second end of each metal-oxide-semiconductor homogeneously connects, and the control terminal of each metal-oxide-semiconductor is respectively connected with one
Combining control signal.
Optionally, further includes: partial pressure unit, input terminal are connect with combining control signal, output end and the metal-oxide-semiconductor
Control terminal connection.
Optionally, the partial pressure unit includes: the first divider resistance, and one end is connect with the control terminal of the metal-oxide-semiconductor, another
End is connect with the second end of the metal-oxide-semiconductor；Second divider resistance, one end are connect with combining control signal, the other end and institute
State the control terminal connection of metal-oxide-semiconductor.
Optionally, further includes: filter unit is connected in parallel between the control terminal and second end of the metal-oxide-semiconductor.
Optionally, further includes: voltage regulation unit is connected in parallel between the control terminal and second end of the metal-oxide-semiconductor.
Optionally, further includes: isolated location is connected in series between the control terminal and external power supply of the metal-oxide-semiconductor.
Optionally, the isolated location is optocoupler, relay, Magnetic isolation chip or capacitor.
Optionally, the first input end of the optocoupler is connect with combining control signal, and the second input terminal and ground wire connect
It connects, the control terminal connection of the first output end and metal-oxide-semiconductor, second output terminal is connect with ground wire.
Optionally, further includes: optocoupler current limiting unit is connected in series in the first input end and combining control letter of the optocoupler
Between number.
According to second aspect, the utility model embodiment provides a kind of electrical equipment, including such as the utility model first
Any power supply Combining Circuit in aspect.
Optionally, further includes: control circuit, input terminal are connect with the second end of the metal-oxide-semiconductor in the power supply Combining Circuit,
Output end is connect with the combining control signal in the power supply Combining Circuit.
Technical solutions of the utility model have the advantages that
Power supply Combining Circuit provided by the utility model, comprising: at least two-way power branch, per the power branch described all the way
It include a metal-oxide-semiconductor, the first end of each metal-oxide-semiconductor is respectively connected with an external power supply, each metal-oxide-semiconductor
Second end homogeneously connects, and the control terminal of each metal-oxide-semiconductor is respectively connected with a combining control signal.Above-mentioned power supply combining
Circuit is combined using metal-oxide-semiconductor instead of diode, and the in due course conducting of metal-oxide-semiconductor is controlled by combining control signal, so that
The pressure drop of Combining Circuit is the conduction voltage drop of metal-oxide-semiconductor, greatly reduces combining power consumption.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of a specific example of DC power supply Combining Circuit in the prior art；
Fig. 2 is the schematic diagram of a specific example of the power supply Combining Circuit of the utility model embodiment；
Fig. 3 is the schematic diagram of another specific example of the power supply Combining Circuit of the utility model embodiment；
Fig. 4 is the schematic diagram of another specific example of the power supply Combining Circuit of the utility model embodiment；
Fig. 5 is the schematic diagram of another specific example of the power supply Combining Circuit of the utility model embodiment；
Fig. 6 is the schematic diagram of another specific example of the power supply Combining Circuit of the utility model embodiment；
Fig. 7 is the schematic diagram of another specific example of the power supply Combining Circuit of the utility model embodiment.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those skilled in the art's every other embodiment obtained without creative efforts, belongs to this reality
With novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
The utility model embodiment provides a kind of power supply Combining Circuit, reduces the power consumption of entire circuit.Such as Fig. 2 institute
Show, power supply Combining Circuit includes: at least two-way power branch 1, includes a metal-oxide-semiconductor, each MOS per power branch all the way
The first end of pipe is respectively connected with an external power supply, and the second end of each metal-oxide-semiconductor homogeneously connects, the control of each metal-oxide-semiconductor
End processed is respectively connected with a combining control signal.
In one embodiment, as shown in figure 3, power supply Combining Circuit includes two-way power branch 1, first via power branch 11
With the second road power branch 12；The first end that metal-oxide-semiconductor on first power branch is the first PMOS tube Q1, the first PMOS tube Q1 connects
Meet control terminal connection the first combining control signal C1 of the first external power supply V1, the first PMOS tube Q1；Second source branch road
The first end that metal-oxide-semiconductor is the second PMOS tube Q2, the second PMOS tube Q2 connects the second external power supply V2, the control of the second PMOS tube Q2
End connection the second combining control signal C2；The second end of first PMOS tube is connected with the second end of the second PMOS tube, combining connection
Afterwards to corresponding load LOAD power supply.Certainly, in other alternative embodiments, the number of branch can according to actual needs rationally
It determines, such as is set as three-way power branch or four-way power supply branch etc., the present embodiment is not intended to be limited in any this.For example,
The model of PMOS tube can be 781-SUD50P06-15-GE3, this present embodiment only schematically illustrates, not as
Limit can choose suitable PMOS tube according to the practical situations of circuit in other embodiments.
Specifically, the control terminal of the first PMOS tube Q1 can be the grid of the first PMOS tube, and first end can be first
The drain electrode of PMOS tube, second end can be the source electrode of the first PMOS tube；The control terminal of second PMOS tube Q2 can be the 2nd PMOS
The grid of pipe, first end can be the drain electrode of the second PMOS tube, and second end can be the source electrode of the second PMOS tube.
Above-mentioned power supply Combining Circuit is combined using metal-oxide-semiconductor instead of diode, controls MOS by combining control signal
The in due course conducting of pipe greatly reduces combining power consumption so that the pressure drop of Combining Circuit is the conduction voltage drop of metal-oxide-semiconductor.
In one embodiment, natural certainly first with PMOS tube as shown in figure 4, combining control signal is exported by control circuit
The body diode of band is combined, so that the lesser control circuit of power consumption obtains electric, while not allowing high power load to work, control electricity
Road allows corresponding metal-oxide-semiconductor to be connected in turn again, again high power load is worked later, is bringing when overloaded to eliminate diode
Substantially power consumption.Control circuit first pass through metal-oxide-semiconductor parasitic body diode obtain it is electric, then control metal-oxide-semiconductor conducting after make combining electricity
The power consumption on road is greatly lowered, and the work of control circuit does not have to special power supply circuit, reduces production cost.
On the basis of above-mentioned power supply Combining Circuit, the circuit further include: partial pressure unit, input terminal and combining control signal
The control terminal of connection, output end and metal-oxide-semiconductor connects.Partial pressure unit divides the voltage of combining control signal, for metal-oxide-semiconductor
Control terminal suitable control voltage is provided.
In one embodiment, as shown in figure 5, partial pressure unit includes the first divider resistance 2 and the second divider resistance 3；Wherein,
One end of first divider resistance 2 and the control terminal of metal-oxide-semiconductor connect, and the other end of the first divider resistance 2 and the second end of metal-oxide-semiconductor connect
It connects；One end of second divider resistance 3 is connect with combining control signal, the other end of the second divider resistance 3 and the control terminal of metal-oxide-semiconductor
Connection.
In addition, the first divider resistance 2 being connected in parallel between the control terminal of metal-oxide-semiconductor and second end, additionally it is possible to effectively protect
The reliable turn-off for demonstrate,proving metal-oxide-semiconductor, improves the reliability of circuit.It is connected in series between the control terminal of metal-oxide-semiconductor and combining control signal
The second divider resistance 3, additionally it is possible to main circuit power-up damage metal-oxide-semiconductor, limitation driving electricity when preventing open-grid or grid from damaging
Stream, plays a protective role to metal-oxide-semiconductor.
Specifically, as shown in figure 5, including the road n power branch in power supply Combining Circuit, wherein n is just whole more than or equal to 2
Number, be denoted as respectively first via power branch 11, the second road power branch 12 ..., the n-th road power branch 1n.Wherein, the first via
PMOS tube on power branch 11 is denoted as Q1, and the PMOS tube on the second road power branch 12 is denoted as Q2 ..., the n-th road power branch
PMOS tube on 1n is denoted as Qn；The first divider resistance being set between PMOS tube Q1 control terminal and second end is denoted as R11, setting
The first divider resistance between PMOS tube Q2 control terminal and second end be denoted as R21 ..., be set to PMOS tube Qn control terminal and
First point of piezoresistance between second end is denoted as Rn1；Be set to PMOS tube Q1 control terminal and first combining control signal K1 it
Between the second divider resistance be denoted as R12, be set to PMOS tube Q2 control terminal and second combining control signal K2 between second point
The second divider resistance note that piezoresistance is denoted as R22 ..., is set between PMOS tube Qn control terminal and the n-th combining control signal Kn
For Rn2.
On the basis of above-mentioned power supply Combining Circuit, as shown in fig. 6, the circuit further include: filter unit 4 is connected in parallel
Between the control terminal and second end of metal-oxide-semiconductor, for filtering out the relevant interference of metal-oxide-semiconductor control terminal.Specifically, filter unit can be with
It is filter capacitor, when power supply Combining Circuit includes first via power branch 11 and the second road power branch 12, is set to first
Filter capacitor between PMOS tube Q1 control terminal and second end is the first filter capacitor C1, is set to the second PMOS tube Q2 control terminal
Filter capacitor between second end is the second filter capacitor C2.
On the basis of above-mentioned power supply Combining Circuit, as shown in fig. 6, the circuit further include: voltage regulation unit 5 is connected in parallel
Between the control terminal and second end of metal-oxide-semiconductor, for stablizing the output voltage of metal-oxide-semiconductor.Specifically, voltage regulation unit can be pressure stabilizing
Diode is set to the first PMOS when power supply Combining Circuit includes first via power branch 11 and the second road power branch 12
Zener diode between pipe Q1 control terminal and second end is the first zener diode D1, is set to the second PMOS tube Q2 control terminal
Zener diode between second end is the second zener diode D2.For example, the model of zener diode can be 78-
MMSZ5246B-E3-08, the present embodiment only schematically illustrate, and are not limited thereto, in other embodiments, can be according to electricity
The practical situations on road choose suitable zener diode.
On the basis of above-mentioned power supply Combining Circuit, as shown in fig. 6, the circuit further include: isolated location 6 is connected in series
Between the control terminal and external power supply of metal-oxide-semiconductor, for being isolated between external power supply and metal-oxide-semiconductor control terminal, so that metal-oxide-semiconductor
It is more accurate to control.
In one embodiment, isolated location can be optocoupler, relay, Magnetic isolation chip or capacitor；Using optocoupler every
From the isolation of, relay, the isolation of Magnetic isolation chip or Capacitor apart, it is simpler convenient to control.Certainly, in other embodiments
In, isolated location can also be other components with isolation features, as needed rationally setting.Other replaceable
In embodiment, it can also be not provided with isolated location, can rationally be determined according to practical application.
When isolated location is optocoupler, the first input end of optocoupler is connect with combining control signal, the second input terminal and ground
The control terminal of line connection, the first output end and metal-oxide-semiconductor connects, and second output terminal is connect with ground wire.For example, the model of optocoupler can be with
It is that (BL-TPSE, the present embodiment only schematically illustrate 757-TLP291, are not limited thereto, in other embodiments, can
Suitable optocoupler is chosen according to the practical situations of circuit.
Specifically, it when power supply Combining Circuit includes first via power branch 11 and the second road power branch 12, is set to
Optocoupler between first PMOS tube Q1 control terminal and the first external power supply V1 is the first optocoupler U1, is set to the second PMOS tube Q2 control
Optocoupler between end processed and the second external power supply V2 is the second optocoupler U2.The first input end of first optocoupler U1 and the first combining are controlled
Signal K1 connection processed, the second input terminal are connect with ground wire GND, and the first output end is connect with the control terminal of the first PMOS tube Q1, the
Two output ends are connect with ground wire GND.The first input end of second optocoupler U2 is connect with the second combining control signal K2, the second input
End is connect with ground wire GND, and the first output end is connect with the control terminal of the second PMOS tube Q2, and second output terminal is connect with ground wire GND.
On the basis of above-mentioned power supply Combining Circuit, as shown in fig. 6, the circuit further include: optocoupler current limiting unit 7, series connection
It is connected between the first input end of optocoupler and combining control signal, for limiting the electric current for flowing into optocoupler input, protects light
Coupling.Specifically, optocoupler current limiting unit can be optocoupler current-limiting resistance, include 11 He of first via power branch in power supply Combining Circuit
When the second road power branch 12, the first input end and the first combining that are set to the first optocoupler U1 control the optocoupler between signal K1
Current-limiting resistance R31, the optocoupler current limliting electricity being set between the first input end of the second optocoupler U2 and the second combining control signal K2
Hinder R32.
It is described in detail so that power supply Combining Circuit is applied to primary and secondary unmanned vehicle system as an example below.As shown in fig. 7, sub- vehicle
First with the V power supply of female vehicle, group vehicle needs to be powered with BAT28+ after being sent by female vehicle, and sub- vehicle can by correlation detecting circuit
The division situation of sub- vehicle and female vehicle is grasped, therefore can realize the conducting of related PMOS tube by the conducting of optocoupler, reduces conducting function
Consumption, increases the cruising ability of sub- vehicle.The circuit replaces diode with PMOS tube, in subsequent load circuit there is OC or OD to control
The I/O circuit of function processed controls the in due course conducting of PMOS tube, to eliminate diode in the substantially power consumption of bring when overloaded, drop
Low combining power consumption reduces circuit fever, increases the cruising ability of battery power supply system.Certainly, in other alternative embodiments,
The circuit applies also for the industries such as other industries, such as aerospace, weapons.For example, when being mounted with guided missile on rocket, guided missile
When not emitting using the power supply power supply on rocket, the power supply power supply of itself is used after MISSILE LAUNCHING.
The present embodiment also provides a kind of electrical equipment, is combined electricity including mentioned power supply any in such as above-described embodiment
Road.The electrical equipment has the advantages that combining is low in energy consumption.
In one embodiment, which further includes control circuit, the input terminal and power supply Combining Circuit of control circuit
In metal-oxide-semiconductor second end connection, output end in power supply Combining Circuit combining control signal connect.Specifically, control electricity
Road 8 can be as shown in Figure 4, and control circuit can improve integrated level, reduction is produced into using the control chip in load LOAD
This；Control circuit first passes through metal-oxide-semiconductor parasitic body diode and obtains electric, makes the power consumption of Combining Circuit after then controlling metal-oxide-semiconductor conducting
It is greatly lowered, and the work of control circuit does not have to special power supply circuit.Certainly, in other embodiments, control circuit
It can also be separately provided, as needed rationally setting.
Although being described in conjunction with the accompanying the embodiments of the present invention, those skilled in the art can not depart from this
Various modifications and variations can be made in the case where the spirit and scope of utility model, and such modifications and variations are each fallen within by appended power
Benefit requires within limited range.
Claims (11)
1. a kind of power supply Combining Circuit characterized by comprising
At least two-way power branch includes a metal-oxide-semiconductor per the power branch described all the way, and the first of each metal-oxide-semiconductor
End is respectively connected with an external power supply, and the second end of each metal-oxide-semiconductor homogeneously connects, the control of each metal-oxide-semiconductor
End processed is respectively connected with a combining control signal.
2. power supply Combining Circuit according to claim 1, which is characterized in that further include:
Partial pressure unit, input terminal are connect with combining control signal, and output end is connect with the control terminal of the metal-oxide-semiconductor.
3. power supply Combining Circuit according to claim 2, which is characterized in that the partial pressure unit includes:
First divider resistance, one end are connect with the control terminal of the metal-oxide-semiconductor, and the other end is connect with the second end of the metal-oxide-semiconductor；
Second divider resistance, one end are connect with combining control signal, and the other end is connect with the control terminal of the metal-oxide-semiconductor.
4. power supply Combining Circuit according to claim 1, which is characterized in that further include:
Filter unit is connected in parallel between the control terminal and second end of the metal-oxide-semiconductor.
5. power supply Combining Circuit according to claim 1, which is characterized in that further include:
Voltage regulation unit is connected in parallel between the control terminal and second end of the metal-oxide-semiconductor.
6. -5 any power supply Combining Circuit according to claim 1, which is characterized in that further include:
Isolated location is connected in series between the control terminal and external power supply of the metal-oxide-semiconductor.
7. power supply Combining Circuit according to claim 6, which is characterized in that the isolated location is optocoupler, relay, magnetic
Isolating chip or capacitor.
8. power supply Combining Circuit according to claim 7, which is characterized in that the first input end of the optocoupler and the conjunction
Road controls signal connection, and the second input terminal is connect with ground wire, the control terminal connection of the first output end and metal-oxide-semiconductor, second output terminal
It is connect with ground wire.
9. power supply Combining Circuit according to claim 8, which is characterized in that further include:
Optocoupler current limiting unit is connected in series between the first input end of the optocoupler and combining control signal.
10. a kind of electrical equipment characterized by comprising
Power supply Combining Circuit as described in claim 1-9 is any.
11. electrical equipment according to claim 10, which is characterized in that further include:
Control circuit, input terminal are connect with the second end of the metal-oxide-semiconductor in the power supply Combining Circuit, and output end and the power supply close
Combining control signal connection in the circuit of road.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920211923.XU CN209593089U (en) | 2019-02-18 | 2019-02-18 | Power supply Combining Circuit and electrical equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920211923.XU CN209593089U (en) | 2019-02-18 | 2019-02-18 | Power supply Combining Circuit and electrical equipment |
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| CN209593089U true CN209593089U (en) | 2019-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787348A (en) * | 2019-02-18 | 2019-05-21 | 北京星际荣耀空间科技有限公司 | Power supply Combining Circuit and electrical equipment |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787348A (en) * | 2019-02-18 | 2019-05-21 | 北京星际荣耀空间科技有限公司 | Power supply Combining Circuit and electrical equipment |
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Effective date of registration: 20191231 Address after: 100176 Beijing Daxing District Beijing economic and Technological Development Zone, 9 South of Shing Sheng 1 1 3 story 329 Co-patentee after: Beijing Star glory Technology Co., Ltd Patentee after: Beijing interstellar glory InterSpace Technology Ltd Address before: 100176 Building No. 9, Dishengnan Street, Daxing Economic and Technological Development Zone, Beijing, 329 Patentee before: Beijing interstellar glory InterSpace Technology Ltd |
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Address after: 100045 1-14-214, 2nd floor, 136 Xiwai street, Xicheng District, Beijing Patentee after: Beijing Star glory Space Technology Co.,Ltd. Patentee after: Beijing Star glory Technology Co.,Ltd. Address before: 100176 329, 3rd floor, building 1, No.9, Disheng South Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: BEIJING XINGJIRONGYAO SPACE TECHNOLOGY Co.,Ltd. Patentee before: Beijing Star glory Technology Co.,Ltd. |