CN209497471U - A kind of power supply system - Google Patents
A kind of power supply system Download PDFInfo
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- CN209497471U CN209497471U CN201920180374.4U CN201920180374U CN209497471U CN 209497471 U CN209497471 U CN 209497471U CN 201920180374 U CN201920180374 U CN 201920180374U CN 209497471 U CN209497471 U CN 209497471U
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Abstract
The utility model discloses a kind of power supply system, the power supply system includes power supply module, expansion of power supply module and first switch module；The output end of the power supply module is connect with the first end of the first switch module；The second end of the first switch module is used to connect the input terminal of power receiving equipment；The output end of the expansion of power supply module is used to connect the input terminal of the power receiving equipment；Wherein, the rated output voltage of the power supply module is greater than the rated output voltage of the expansion of power supply module；The power supply module supports constant pressure powering mode and invariable power powering mode.The utility model can satisfy the power demands of power receiving equipment, efficiently use the electric energy of power supply module, reduce the requirement to the output power of power supply module and expansion of power supply module, and improve the reliability of power supply system.
Description
Technical field
The utility model relates to power supply technique field more particularly to a kind of power supply systems.
Background technique
It based on Ethernet is some IP terminal transmission data signals that POE interchanger, which is a kind of, while can also be whole for these IP
The equipment for holding power supply.Limited electrical power inside POE interchanger, for the power demands for meeting IP terminal, usual POE interchanger is also needed
External power supply is accessed to provide required electric energy, such as access EPS power supply to IP terminal.
In the prior art, after EPS plant-grid connection POE interchanger, the power supply inside POE interchanger just stops to IP terminal
Power supply, the IP terminal connecting with POE interchanger is all by EPS power supply power supply, i.e., IP terminal is only by the power supply of POE interchanger
Module for power supply or only by EPS power supply power supply.
However, multiple IP terminals can be connect with POE interchanger simultaneously by multiple ports IP of POE interchanger, to
Meet the power demands of whole IP terminal, the power supply plan of the prior art power to the power supply module of POE interchanger or
The demanded power output of EPS power supply is high；And after EPS plant-grid connection POE interchanger, is only powered, failed from EPS power supply to IP terminal
Efficiently use the power supply module of POE interchanger.
Utility model content
The technical problem to be solved by the embodiment of the utility model is, providing a kind of power supply system, can satisfy by electricity
The power demands of equipment can efficiently use the electric energy of power supply module, reduce power supply module and expansion of power supply module
Demanded power output.
In order to solve the above technical problems, the utility model embodiment provides a kind of power supply system, the power supply system
Including power supply module, expansion of power supply module and first switch module；
The output end of the power supply module is connect with the first end of the first switch module；The first switch mould
The second end of block is used to connect the input terminal of power receiving equipment；
The output end of the expansion of power supply module is used to connect the input terminal of the power receiving equipment；
Wherein, the rated output voltage of the power supply module is greater than the rated output electricity of the expansion of power supply module
Pressure；The power supply module supports constant pressure powering mode and invariable power powering mode.
Further, the first switch module includes first diode；The anode of the first diode and the confession
The output end of power supply module connects, and the cathode of the first diode is used to connect the input terminal of the power receiving equipment；Or,
The first switch module includes the first metal-oxide-semiconductor；First metal-oxide-semiconductor is N-channel MOS pipe or P-channel metal-oxide-semiconductor；
Or,
The first switch module includes the first triode；First triode is three pole of PNP type triode or NPN type
Pipe.
Further, the first switch module includes first switch unit and first control unit；The first switch
The first end of unit is connect with the output end of the power supply module, and the second end of the first switch unit is for connecting institute
The input terminal of power receiving equipment is stated, the control terminal of the first switch unit is connect with the control terminal of the first control unit；Institute
The first end for stating first control unit is connect with the first end of the first switch unit, the second end of the first control unit
It is connect with the second end of the first switch unit.
Further, the first switch unit includes first switch tube；
The first switch tube is NPN type triode；The first end of the first switch unit is the NPN type triode
Collector, the second end of the first switch unit is the emitter of the NPN type triode, the first switch unit
Control terminal is the base stage of the NPN type triode；Or,
The first switch tube is N-channel MOS pipe；The first end of the first switch unit is the N-channel MOS pipe
Source electrode, the second end of the first switch unit are the drain electrode of the N-channel MOS pipe, the control terminal of the first switch unit
For the grid of the N-channel MOS pipe.
Further, the first control unit includes the first control chip.
Further, the power supply system further includes second switch module；
The first end of the second switch module is connect with the output end of the expansion of power supply module, the second switch mould
The second end of block is used to connect the input terminal of the power receiving equipment.
Further, the second switch module includes the second diode；The anode of second diode and the expansion
The output end connection of power module is opened up, the cathode of second diode is used to connect the input terminal of the power receiving equipment；Or,
The second switch module includes the second metal-oxide-semiconductor；Second metal-oxide-semiconductor is N-channel MOS pipe or P-channel metal-oxide-semiconductor；
Or,
The second switch module includes the second triode；Second triode is three pole of PNP type triode or NPN type
Pipe.
Further, the second switch module includes second switch unit and the second control unit；The second switch
The first end of unit is connect with the output end of the expansion of power supply module, the second end and the power supply of the second switch unit
The input terminal of power module connects, and the control terminal of the second switch unit is connect with the control terminal of second control unit；
The first end of second control unit is connect with the first end of the second switch unit, and the second of second control unit
End is connect with the second end of the second switch unit.
Further, the second switch unit includes second switch；
The second switch is NPN type triode；The first end of the second switch unit is the NPN type triode
Collector, the second end of the second switch unit is the emitter of the NPN type triode, the second switch unit
Control terminal is the base stage of the NPN type triode；Or,
The second switch is N-channel MOS pipe；The first end of the second switch unit is the N-channel MOS pipe
Source electrode, the second end of the second switch unit are the drain electrode of the N-channel MOS pipe, the control terminal of the second switch unit
For the grid of the N-channel MOS pipe.
Further, it is connected between the power supply module and the expansion of power supply module by current equalizing bus bar.
Compared with prior art, a kind of power supply system provided by the embodiment of the utility model, power receiving equipment access first are opened
When closing the second end of module, since power supply module supports constant pressure powering mode and invariable power powering mode, and power supply
The rated output voltage of module is greater than the rated output voltage of expansion of power supply module, is able to satisfy power receiving equipment in power supply module
Power demands when, preferentially from power supply module to power receiving equipment power；Power receiving equipment is not able to satisfy in power supply module
Power demands when, powered, realized to power supply to power receiving equipment jointly from expansion of power supply module and power supply module
Module makes full use of, and reduces the requirement of the output power to power supply module and expansion of power supply module, and utilize first
Switch module prevents the electric current of power receiving equipment to flow backward, and improves the reliability of power supply system；Meanwhile the utility model embodiment mentions
The power supply system of confession operates during powering to power receiving equipment without additional control, by the spontaneous realization phase of power supply system itself
The power supply process answered reduces user to the operating process of power supply system.
Detailed description of the invention
Fig. 1 is a kind of structural block diagram for power supply system that the utility model embodiment 1 provides；
Fig. 2 is a kind of structural block diagram for power supply system that the utility model embodiment 2 provides；
Fig. 3 is a kind of structural block diagram for power supply system that the utility model embodiment 3 provides；
Fig. 4 is a kind of structural block diagram for power supply system that the utility model embodiment 4 provides；
Fig. 5 is a kind of structural block diagram for power supply system that the utility model embodiment 5 provides；
Fig. 6 is a kind of structural block diagram for power supply system that the utility model embodiment 6 provides；
Fig. 7 is a kind of structural block diagram for power supply system that the utility model embodiment 7 provides.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, it is a kind of structural block diagram for power supply system that the utility model embodiment 1 provides.This is practical new
Type example provides a kind of power supply system, and the power supply system includes power supply module 1, expansion of power supply module 2 and first switch
Module 3；
The output end of the power supply module 1 is connect with the first end of the first switch module 3；The first switch
The second end of module 3 is used to connect the input terminal of power receiving equipment 4；
The output end of the expansion of power supply module 2 is used to connect the input terminal of the power receiving equipment 4；
Wherein, the rated output voltage of the power supply module 1 is greater than the rated output electricity of the expansion of power supply module 2
Pressure；The power supply module 1 supports constant pressure powering mode and invariable power powering mode.
It should be noted that being seen on the whole when power supply module connect power receiving equipment with expansion of power supply module, power
Power module and expansion of power supply module are not cascade structures, are parallel-connection structures.Since power supply module is to support constant pressure power supply
The power module of mode and invariable power powering mode, the output voltage of power supply module is simultaneously not fixed, and expansion of power supply module
Output voltage be rated output voltage.When the output voltage of power supply module is rated output voltage, due to power supply electricity
The rated output voltage of source module is greater than the rated output voltage of expansion of power supply module, and expansion of power supply module can not export electric current,
It is only powered at this time from power supply module to power receiving equipment；When the output voltage of power supply module and the volume of expansion of power supply module
Determine output voltage it is identical when, expansion of power supply module can export electric current, and expansion of power supply module and power supply module are common at this time
It powers to power receiving equipment.
Specifically, the second end of power receiving equipment access first switch module, power receiving equipment draw institute to power supply module
Electric current is needed to obtain required electric energy, power supply module is first in constant pressure powering mode, and sets with rated output voltage to by electricity
Available electricity, the electric current certain to the output of power receiving equipment, expansion of power supply module can not export electric current at this time；As power receiving equipment is drawn
The output electric current of the increase of the electric current taken, power supply module also increases accordingly, if power supply module is in constant pressure powering mode
When be just able to satisfy access power supply power receiving equipment power demands, will be always only from power supply module to power receiving equipment
Power supply；If power supply module in constant pressure powering mode, output maximum current be not able to satisfy still access power supply by electricity
The power demands of equipment, power supply module will automatically switch to invariable power powering mode, draw at this time with power receiving equipment
The output electric current of the increase of electric current, power supply module also increases accordingly, and output voltage accordingly reduces, when power supply module
When output voltage is reduced to identical as the rated output voltage of expansion of power supply module, expansion of power supply module can export electric current, by
The electric current that electric equipment is drawn to power supply module is not further added by, and expansion of power supply module is set to by electricity jointly with power supply module
Available electricity, the power demands of power receiving equipment are all satisfied.
Power supply system provided by the embodiment of the utility model is able to satisfy the power demands of power receiving equipment in power supply module
When, preferentially powered from power supply module to power receiving equipment；It is not able to satisfy the power demands of power receiving equipment in power supply module
When, it is powered jointly to power receiving equipment from expansion of power supply module and power supply module, realizes the abundant benefit to power supply module
With, and expansion of power supply module and power supply module can power to power receiving equipment jointly, reduce to power supply module and expansion
Open up the requirement of the output power of power module；When power supply module conveys electric current to power receiving equipment, need by first switch
Module can prevent the electric current of power receiving equipment from flowing backward input power supply module, power supply module is prevented to be damaged, improve system
The reliability of system.Meanwhile power supply system provided by the embodiment of the utility model power to power receiving equipment during without additional
Control operation, by the corresponding power supply process of the spontaneous realization of power supply system itself, reduce user to the operation stream of power supply system
Journey.
It should be noted that power supply module supports constant pressure powering mode and constant current power mode, it is prior art energy
Enough realize, thus herein not to realize power supply module support the technological means of constant pressure powering mode and constant current power mode into
Row explanation, those skilled in the art can use the power supply mould of ready-made support constant pressure powering mode and constant current power mode
Block, can also be according to practical application self-definition design.
Optionally, first switch module may include the switching devices such as diode, switching tube or relay to realize out
Close function.For example, cooperating corresponding control circuit when first switch module includes relay, switching function may be implemented, still
Different types of relay has corresponding connection type, and connection type is art technology when relay is as switching device
Known to personnel, it must can prevent the electric current of power receiving equipment from flowing backward input power supply module；For example, first switch module
When including electromagnetic relay, two stationary contacts of electromagnetic relay respectively with the output end of power supply module, power receiving equipment
Input terminal connection, the on off operating mode of the coil control circuit by controlling electromagnetic relay prevent the electric current of power receiving equipment from falling
It inculcates into power supply module.It optionally, can by the power receiving equipment that first switch module accesses the same power supply module
Be it is one or more, different power receiving equipments can share a first switch module, or different power receiving equipments settings
Different first switch modules specifically, multiple power receiving equipments can connect first switch module by different ports, then passes through
Different interfaces connects power supply module.Expansion of power supply module may include that one or more power supply units provide extension electricity jointly
The electric energy of source module.
Optionally, power supply module is provided at the power module inside POE interchanger, and expansion of power supply module is EPS electricity
Source module；At this point, power supply module and the coupling of expansion of power supply module are small, there is stronger compatibility.
Referring to Fig. 2, it is a kind of structural block diagram for power supply system that the utility model embodiment 2 provides, it is assumed that power supply
Power module 1 is provided at the power module inside POE interchanger, and expansion of power supply module 2 is EPS power module, and expansion of power supply
Module 2 is made of power supply unit 201 and power supply unit 202, has 2 power supply modules 1 to connect with expansion of power supply module 2, by
When the power module being provided inside POE interchanger in power supply module 1, POE interchanger has the end of connection power receiving equipment
Mouthful, it is however generally that in addition the port of connection EPS power module is not arranged for power receiving equipment, therefore expansion of power supply module can pass through combining electricity
Road, conversion circuit are connect with power receiving equipment indirectly, i.e. the electric energy that provides to power receiving equipment of expansion of power supply module and power supply mould
It powers as system power supply electric energy to power receiving equipment after the electric energy integration that block provides.
Power supply system provided by the embodiment of the utility model is further illustrated by taking structural block diagram shown in Fig. 2 as an example below
Power supply process:
Assuming that two 1 rated output powers of POE power supply for exchange power module are 400W, power supply 201 and power supply 202
Rated output power is 300W.
If by the port of POE switch A 1 access 1 power supply module 1 of POE switch A powered device PD a11,
The general power of PDa12 ... PDa1n (n >=1) is 200W, accesses POE switch A 2 by the port of POE switch A 2 and powers electricity
The general power of powered device PD a21, PDa22 ... the PDa2m (m >=1) of source module 1 is 100W.Extremely due to powered device PD a11
The general power of PDa1n is less than 400W, and the general power of powered device PD a21 to PDa2m is less than 400W, and powered device PD a11 is extremely
PDa1n is all only powered by 1 power supply module of POE switch A, and powered device PD a21 to PDa2m is all only exchanged by POE
The power supply of machine A2 power supply module, EPS power-supply system are not powered to any power receiving equipment 4.
If the powered device PD a11 of 1 power supply module 1 of POE switch A is accessed extremely in the port by POE switch A 1
The general power of PDa1n is 700W, accesses being set by electricity for 2 power supply module 1 of POE switch A by the port of POE switch A 2
The general power of standby PDa21 to PDa2m is 500W.Then at this time 1 power supply module 1 of POE switch A to powered device PD a11 extremely
PDa1n provides the power of 400W, and EPS power-supply system provides the power of 300W to powered device PD a11 to PDa1n；POE interchanger
A2 power supply module 1 provides the power of 400W to powered device PD a21 to PDa2m, and EPS power-supply system is to power receiving equipment
The power of PDa21 to PDa2m offer 100W.
If the powered device PD a11 of 1 power supply module of POE switch A is accessed extremely in the port by POE switch A 1
The general power of PDa1n is 300W, accesses being set by electricity for 1 power supply module of POE switch A by the port of POE switch A 2
The general power of standby PDa21 to PDa2m is 800W.Then the power demands of powered device PD a11 to PDa1n are all handed over by POE at this time
A1 power supply module of changing planes meets, and 1 power supply module of POE switch A provides 300W to powered device PD a11 to PDa1n
Power, EPS power-supply system powers not to powered device PD a11 to PDa1n；2 power supply module of POE switch A, 1 Xiang Shou electricity
Equipment PDa21 to PDa2m provides the power of 400W, and EPS power-supply system provides the function of 400W to powered device PD a21 to PDa2m
Rate.
It should be noted that Fig. 2 only illustrates the case where different power receiving equipments share a first switch module, but this reality
Different first switch modules can also be respectively corresponded with the power supply system difference power receiving equipment that new embodiment provides.
Referring to Fig. 3, being a kind of structural block diagram for power supply system that the utility model embodiment 3 provides.Further, institute
Stating first switch module 3 includes first diode D1；The anode of the first diode D1 is defeated with the power supply module 1
Outlet connection, the cathode of the first diode D1 are used to connect the input terminal of the power receiving equipment 4；Or,
The first switch module 3 includes the first metal-oxide-semiconductor；First metal-oxide-semiconductor is N-channel MOS pipe or P-channel metal-oxide-semiconductor；
Or,
The first switch module 3 includes the first triode；First triode is PNP type triode or NPN type three
Pole pipe.
Specifically, may be implemented first using the turn-on condition of the one-way conduction characteristic or metal-oxide-semiconductor of diode, triode
The function that switch module 3 prevents the electric current of power receiving equipment 4 from flowing backward, prevents power supply system from damaging, improves the reliability of power supply system.
Referring to Fig. 4, it is a kind of structural block diagram for power supply system that the utility model embodiment 4 provides.Further,
The first switch module 3 includes first switch unit 301 and first control unit 302；The of the first switch unit 301
One end is connect with the output end of the power supply module 1, the second end of the first switch unit 301 for connect it is described by
The input terminal of electric equipment 4, the control terminal of the first switch unit 301 are connect with the control terminal of the first control unit 302；
The first end of the first control unit 302 is connect with the first end of the first switch unit 301, the first control unit
302 second end is connect with the second end of the first switch unit 301.
It should be noted that the first end of first control unit, second end respectively with the first end of first switch unit,
The connection of two ends, the output state of the available power supply module of first control unit and the input state of power receiving equipment, in turn
The on off operating mode of the first switch unit, power supply module can be controlled by controlling the control terminal of first switch unit
Output state may be power supply module output voltage, export the parameters such as electric current or output power size or direction
State, the input state of power receiving equipment may be the parameters such as input voltage, input current or the input power for inputting power receiving equipment
Size or direction state.As long as the state for the parameter that the electric current that can be embodied with no power receiving equipment flows backward.
Fig. 5 to Fig. 6 is please referred to, Fig. 5 is a kind of structural block diagram for power supply system that the utility model embodiment 5 provides, Fig. 6
It is a kind of structural block diagram for power supply system that the utility model embodiment 6 provides.Further, the first switch unit 301
Including first switch tube；
The first switch tube is NPN type triode Q1；The first end of the first switch unit 301 is the NPN type
The collector of triode Q1, the second end of the first switch unit 301 is the emitter of the NPN type triode Q1, described
The control terminal of first switch unit 301 is the base stage of the NPN type triode Q1；Or,
The first switch tube is N-channel MOS pipe Q3；The first end of the first switch unit 301 is the N-channel
The source electrode of metal-oxide-semiconductor Q3, the second end of the first switch unit 301 are the drain electrode of the N-channel MOS pipe Q3, and described first opens
The control terminal for closing unit 301 is the grid of the N-channel MOS pipe Q3.
Specifically, needing the voltage of the base stage of triode, collector and emitter to meet centainly using the conducting of triode
Condition, or need the voltage of the grid of metal-oxide-semiconductor, source electrode and drain electrode to meet certain condition using the conducting of metal-oxide-semiconductor, first switch tube
When for NPN type triode or N-channel MOS pipe, the on off operating mode of first control unit control first switch unit may be implemented
Function.
Further, the first control unit 302 includes the first control chip.
Specifically, when first control unit includes the first control chip control signal can be exported, to first switch unit
On off operating mode controlled.
Referring to Fig. 7, it is a kind of structural block diagram for power supply system that the utility model embodiment 7 provides, further,
The power supply system further includes second switch module 5；
The first end of the second switch module 5 is connect with the output end of the expansion of power supply module 2, the second switch
The second end of module 5 is used to connect the input terminal of the power receiving equipment 4.
Specifically, increase second switch module between the output end of expansion of power supply module and the input terminal of power receiving equipment,
It can prevent the electric current of power receiving equipment from flowing backward input expanding power module, expansion of power supply module is prevented to be damaged, power supply system is provided
The reliability of system.
Optionally, second switch module may include the switching devices such as diode, switching tube or relay to realize out
Close function.
Further, as shown in figure 3, the second switch module 5 includes the second diode D2；The second diode D2
Anode connect with the output end of the expansion of power supply module 2, the cathode of the second diode D2 is described by electricity for connecting
The input terminal of equipment 4；Or,
The second switch module 5 includes the second metal-oxide-semiconductor；Second metal-oxide-semiconductor is N-channel MOS pipe or P-channel metal-oxide-semiconductor；
Or,
The second switch module 5 includes the second triode；Second triode is PNP type triode or NPN type three
Pole pipe.
Specifically, may be implemented second using the turn-on condition of the one-way conduction characteristic or metal-oxide-semiconductor of diode, triode
Switch module 5 prevents the electric current of power receiving equipment from flowing backward the function of input expanding power module, prevents power supply system from damaging, and improves and supplies
The reliability of electric system.
Further, as shown in figure 4, the second switch module 5 includes second switch unit 501 and the second control unit
502；The first end of the second switch unit 501 is connect with the output end of the expansion of power supply module 2, the second switch list
The second end of member 501 is connect with the input terminal of the power supply module 1, the control terminal of the second switch unit 501 and institute
State the control terminal connection of the second control unit 502；The first end of second control unit 502 and the second switch unit
501 first end connection, the second end of second control unit 502 are connect with the second end of the second switch unit 501.
The electricity for preventing power receiving equipment is realized since second switch module includes second switch unit and the second control unit
Stream flows backward the function of input expanding unit module and first switch module includes that first switch unit and first control unit are come in fact
The principle for now preventing the electric current of power receiving equipment from flowing backward the function of entering power supply module is similar, therefore details are not described herein.
Further, as shown in Figure 5 to Figure 6, the second switch unit 501 includes second switch；
The second switch is NPN type triode Q2；The first end of the second switch unit 501 is the NPN type
The collector of triode Q2, the second end of the second switch unit 501 is the emitter of the NPN type triode Q2, described
The control terminal of second switch unit 501 is the base stage of the NPN type triode Q2；Or,
The second switch is N-channel MOS pipe Q4；The first end of the second switch unit 501 is the N-channel
The source electrode of metal-oxide-semiconductor Q4, the second end of the second switch unit 501 are the drain electrode of the N-channel MOS pipe Q4, and described second opens
The control terminal for closing unit 501 is the grid of the N-channel MOS pipe Q4.
Since second switch unit includes second switch, second switch is NPN type triode Q2 or N-channel MOS pipe
Q4 prevents that the electric current of power receiving equipment from flowing backward the function of input expanding power module and first switch unit is opened including first to realize
Guan Guan, first switch tube are NPN type triode Q1 or N-channel MOS pipe Q3 to realize that preventing the electric current of power receiving equipment from flowing backward enters
The principle of the function of power supply module is similar, therefore details are not described herein.
Optionally, second control unit 502 includes the second control chip.
Specifically, when the second control unit includes the second control chip control signal can be exported, to second switch unit
On off operating mode controlled.
Further, it is connected between the power supply module and the expansion of power supply module by current equalizing bus bar.
Specifically, connected between power supply module and expansion of power supply module by current equalizing bus bar, it can be in power supply
When module and expansion of power supply module are powered to power receiving equipment jointly, allow power supply module and expansion of power supply module according to default ratio
Example output electric current, prevents the output power of each power supply uneven；And in order to avoid a power supply damages, power supply system is directly affected
The power supply process of system, expansion of power supply inside modules may include more than one power supply unit, and the damage of some power supply unit can
Can cause power supply system can not normal power supply, between power supply module and expansion of power supply module pass through current equalizing bus bar connect, energy
Some power supply unit transition of expansion of power supply module is enough avoided to consume electric energy, some power supply unit zero load does not play power supply function, adopts
It is connected, is improved the service life of power supply with current equalizing bus bar, and then improve the reliability of power supply system.
Compared with prior art, a kind of power supply system provided by the embodiment of the utility model, power receiving equipment access first are opened
When closing the second end of module, since power supply module supports constant pressure powering mode and invariable power powering mode, and power supply
The rated output voltage of module is greater than the rated output voltage of expansion of power supply module, is able to satisfy power receiving equipment in power supply module
Power demands when, preferentially from power supply module to power receiving equipment power；Power receiving equipment is not able to satisfy in power supply module
Power demands when, powered jointly to power receiving equipment from expansion of power supply module and power supply module.
The technical solution of the utility model embodiment can satisfy the power demands of power receiving equipment, effective use power supply electricity
The electric energy of source module, and expansion of power supply module and power supply module can power to power receiving equipment jointly, reduce to power supply electricity
The requirement of source module and the output power of expansion of power supply module；The electric current of power receiving equipment is prevented to fall using first switch module
It fills, improves the reliability of power supply system；Meanwhile the mistake that power supply system provided by the embodiment of the utility model is powered to power receiving equipment
It is operated in journey without additional control, by the corresponding power supply process of the spontaneous realization of power supply system itself, reduces user to power supply
The operating process of system.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (10)
1. a kind of power supply system, which is characterized in that the power supply system includes power supply module, expansion of power supply module and first
Switch module；
The output end of the power supply module is connect with the first end of the first switch module；The first switch module
Second end is used to connect the input terminal of power receiving equipment；
The output end of the expansion of power supply module is used to connect the input terminal of the power receiving equipment；
Wherein, the rated output voltage of the power supply module is greater than the rated output voltage of the expansion of power supply module；Institute
It states power supply module and supports constant pressure powering mode and invariable power powering mode.
2. power supply system as described in claim 1, which is characterized in that the first switch module includes first diode；Institute
The anode for stating first diode is connect with the output end of the power supply module, and the cathode of the first diode is for connecting
The input terminal of the power receiving equipment；Or,
The first switch module includes the first metal-oxide-semiconductor；First metal-oxide-semiconductor is N-channel MOS pipe or P-channel metal-oxide-semiconductor；Or,
The first switch module includes the first triode；First triode is PNP type triode or NPN type triode.
3. power supply system as described in claim 1, which is characterized in that the first switch module include first switch unit and
First control unit；The first end of the first switch unit is connect with the output end of the power supply module, and described first
The second end of switch unit is used to connect the input terminal of the power receiving equipment, the control terminal of the first switch unit and described the
The control terminal of one control unit connects；The first end of the first control unit and the first end of the first switch unit connect
It connects, the second end of the first control unit is connect with the second end of the first switch unit.
4. power supply system as claimed in claim 3, which is characterized in that the first switch unit includes first switch tube；
The first switch tube is NPN type triode；The first end of the first switch unit is the collection of the NPN type triode
Electrode, the second end of the first switch unit are the emitter of the NPN type triode, the control of the first switch unit
End is the base stage of the NPN type triode；Or,
The first switch tube is N-channel MOS pipe；The first end of the first switch unit is the source of the N-channel MOS pipe
Pole, the second end of the first switch unit are the drain electrode of the N-channel MOS pipe, and the control terminal of the first switch unit is
The grid of the N-channel MOS pipe.
5. power supply system as claimed in claim 3, which is characterized in that the first control unit includes the first control chip.
6. power supply system as described in claim 1, which is characterized in that the power supply system further includes second switch module；
The first end of the second switch module is connect with the output end of the expansion of power supply module, the second switch module
Second end is used to connect the input terminal of the power receiving equipment.
7. power supply system as claimed in claim 6, which is characterized in that the second switch module includes the second diode；Institute
The anode for stating the second diode is connect with the output end of the expansion of power supply module, and the cathode of second diode is for connecting
The input terminal of the power receiving equipment；Or,
The second switch module includes the second metal-oxide-semiconductor；Second metal-oxide-semiconductor is N-channel MOS pipe or P-channel metal-oxide-semiconductor；Or,
The second switch module includes the second triode；Second triode is PNP type triode or NPN type triode.
8. power supply system as claimed in claim 6, which is characterized in that the second switch module include second switch unit and
Second control unit；The first end of the second switch unit is connect with the output end of the expansion of power supply module, and described second
The second end of switch unit is connect with the input terminal of the power supply module, the control terminal of the second switch unit with it is described
The control terminal of second control unit connects；The first end of second control unit and the first end of the second switch unit connect
It connects, the second end of second control unit is connect with the second end of the second switch unit.
9. power supply system as claimed in claim 8, which is characterized in that the second switch unit includes second switch；
The second switch is NPN type triode；The first end of the second switch unit is the collection of the NPN type triode
Electrode, the second end of the second switch unit are the emitter of the NPN type triode, the control of the second switch unit
End is the base stage of the NPN type triode；Or,
The second switch is N-channel MOS pipe；The first end of the second switch unit is the source of the N-channel MOS pipe
Pole, the second end of the second switch unit are the drain electrode of the N-channel MOS pipe, and the control terminal of the second switch unit is
The grid of the N-channel MOS pipe.
10. power supply system as described in any one of claims 1 to 9, which is characterized in that the power supply module and the expansion
It opens up and is connected between power module by current equalizing bus bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920180374.4U CN209497471U (en) | 2019-01-31 | 2019-01-31 | A kind of power supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920180374.4U CN209497471U (en) | 2019-01-31 | 2019-01-31 | A kind of power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660364A (en) * | 2019-01-31 | 2019-04-19 | 普联技术有限公司 | A kind of power supply system |
| CN111446718A (en) * | 2020-03-05 | 2020-07-24 | 华为技术有限公司 | Power supply method, system, power supply device and storage medium |
-
2019
- 2019-01-31 CN CN201920180374.4U patent/CN209497471U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660364A (en) * | 2019-01-31 | 2019-04-19 | 普联技术有限公司 | A kind of power supply system |
| WO2020155898A1 (en) * | 2019-01-31 | 2020-08-06 | 普联技术有限公司 | Power supply system |
| CN111446718A (en) * | 2020-03-05 | 2020-07-24 | 华为技术有限公司 | Power supply method, system, power supply device and storage medium |
| WO2021175215A1 (en) * | 2020-03-05 | 2021-09-10 | 华为技术有限公司 | Power supply method and system, power supply device, and storage medium |
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