CN107733076A - A kind of direct current pressure limiting uninterrupted power supply(ups) - Google Patents
A kind of direct current pressure limiting uninterrupted power supply(ups) Download PDFInfo
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- CN107733076A CN107733076A CN201711187725.6A CN201711187725A CN107733076A CN 107733076 A CN107733076 A CN 107733076A CN 201711187725 A CN201711187725 A CN 201711187725A CN 107733076 A CN107733076 A CN 107733076A
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- resistance
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- electrically connected
- pressure limiting
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of direct current pressure limiting uninterrupted power supply(ups), this case is simple in construction easily to be realized, control is flexible, when input voltage is between B voltages and C voltage, for electrical equipment, such voltage can be used directly, so, the first voltage comparator submodule driving controlled circuit switching switch module carries out circuit switching, making the power supply output interface, it has prominent substantive distinguishing features and significant progress by controlled circuit switching switch module and DC voltage input interface connection；And when input voltage is between A voltages and B voltages or between C voltage and D voltages, for electrical equipment, such voltage is not suitable for directly using, external dc electricity can only all first pass through controlled charging module and give rechargeable battery set module, then rechargeable battery set module is again by controlled circuit switching switch module to power supply for electrical equipment, it is easy to the voltage being adapted to electrical equipment output size, and it is progressive with prominent substantive distinguishing features and significantly.
Description
Technical field
The present invention relates to a kind of direct current pressure limiting uninterrupted power supply(ups).
Background technology
Many equipment are powered with 12V power supplys now, and ought sometimes user be without suitable voltage at one's side 12V electricity
Source user out of doors activity at one's side just no power supply when equipment can not just use, or equipment can not in the case of mains failure
Using or use during have a power failure cause to be possible to use it could even be possible to damage equipment suddenly, so as to bring nothing to client
Method estimation loss, this require will can adapt to automatically different input voltages or the power supply failed can also to 12V equipment it is normal
Work the DC UPS used.
Therefore, above-mentioned defect how is overcome, it has also become those skilled in the art's important topic urgently to be resolved hurrily.
The content of the invention
Instant invention overcomes the deficiency of above-mentioned technology, there is provided a kind of direct current pressure limiting uninterrupted power supply(ups), it controls spirit
Living, power supply is convenient.
To achieve the above object, present invention employs following technical proposal：
A kind of direct current pressure limiting uninterrupted power supply(ups), include power supply output interface 1, for circuit-switched controlled circuit
It is switching switch module 2 and the DC voltage input interface 3 sequentially electrically connected, current no more than D voltage for only allowing
Pressure limiting is passed through module 4, controlled charging module 5, controlled charging output switch module 6, rechargeable battery set module 7, the direct current
Pressure input interface 3, rechargeable battery set module 7 are connect by the controlled circuit switching switch module 2 and the power supply output respectively
Mouthful 1 is electrically connected, and the controlled circuit switching switch module 2 is connected with the rechargeable battery set module 7 during no electricity, and the pressure limiting is led to
The output end of row module 4 be also respectively connected with for when pressure limiting pass through the output end voltage of module 4 be more than A voltages when just drive described in by
Control charging module 5 start work charge initiation control module 51 with just drive the controlled charging output switch module 6 to connect
Charge switch control module 8, for being passed through when pressure limiting when the output end voltage of module 4 is more than B voltages just drive the controlled line
Road switch switch module 2 and DC voltage input interface 3 connect and when pressure limiting pass through the output end voltage of module 4 be more than C voltage when
The voltage comparator module 9 connected between controlled circuit switching switch module 2 and DC voltage input interface 3 is disconnected, wherein, A
＜ B ＜ C ＜ D, the output voltage of the rechargeable battery set module 7 is between B voltages and C voltage.
A kind of direct current pressure limiting uninterrupted power supply(ups) as described above, the current module 4 of the pressure limiting include polar capacitor
C1, electric capacity C2, voltage-stabiliser tube ZD2, resistance R28, resistance R29, resistance R30, resistance R31, resistance R32, NPN triode Q5, NPN tri-
Pole pipe Q6 and FET Q7, the voltage-stabiliser tube ZD2 negative poles connection end and described resistance R30 one end, resistance R31 one end, with
And FET Q7 S poles be electrically connected after passed through module 4 electrode input end as the pressure limiting, the voltage-stabiliser tube ZD2 positive poles
It is electrically connected by the resistance R28 and described resistance R29 one end, NPN triode Q5 base stage, the resistance R30 other ends
The base stage of colelctor electrode, NPN triode Q6 with the NPN triode Q5 is electrically connected, the resistance R31 other ends and the field
Effect pipe Q7 G poles, electric R32 one end are electrically connected, and the emitter stage of the electric R32 other ends and the NPN triode Q6 is electrically connected
Connect, the D poles of the FET Q7 are used as described after being electrically connected with the polar capacitor C1 anode connection terminals, electric capacity C2 one end
The current cathode output end of module 4 of pressure limiting, the resistance R29 other ends and the NPN triode Q5 emitter stage, NPN triode
Q6 emitter stage, polar capacitor C1 negative poles connection end, the electric capacity C2 other ends passes through module 4 after being electrically connected as the pressure limiting
Negative input and cathode output end.
A kind of direct current pressure limiting uninterrupted power supply(ups) as described above, the charge initiation control module 51 include voltage stabilizing
Pipe ZD1 and resistance R1, the voltage-stabiliser tube ZD1 negative poles are electrically connected with the current cathode output end of module 4 of the pressure limiting, the voltage stabilizing
Pipe ZD1 positive poles be electrically connected with resistance R1 one end after as the control signal output of charge initiation control module 51 with it is described
The control signal input of controlled charging module 5 is connected, the resistance R1 other ends and the current cathode output end of module 4 of the pressure limiting
It is electrically connected.
A kind of direct current pressure limiting uninterrupted power supply(ups) as described above, the controlled charging output switch module 6 include
FET Q1, resistance R16, resistance R17 and NPN triode Q2, the FET Q1 D poles controlled are filled as described
The connection end of switch one of electricity output switch module 6 is electrically connected with the electrode input end of controlled charging module 5, the field-effect
Another connection end of switch as the output switch module 6 that charges after pipe Q1 S poles and described resistance R16 one end are electrically connected
It is electrically connected with the electrode input end of rechargeable battery set module 7, the G poles of the FET Q1 and the resistance R16 are another
End, resistance R17 one end are electrically connected, and the colelctor electrode of the resistance R17 other ends and the NPN triode Q2 is electrically connected, institute
The emitter stage and the negative input of controlled charging module 5 for stating NPN triode Q2 are electrically connected, the NPN triode Q2's
Base stage is believed as the control signal input of controlled charging output switch module 6 and the charge switch control module 8 control
Number output end is electrically connected；The charge switch control module 8 includes diode D1, resistance R14 and resistance R15, described
Diode D1 positive poles are electrically connected with the current cathode output end of module 4 of the pressure limiting, the diode D1 negative poles and the resistance
R14 one end is electrically connected, and the resistance R14 other ends are used as the charge switch after being electrically connected with described resistance R15 one end
After the control signal output of control module 8 is electrically connected with the control signal input of controlled charging output switch module 6, institute
The resistance R15 other ends are stated to be electrically connected with the cathode output end of controlled charging module 5.
A kind of direct current pressure limiting uninterrupted power supply(ups) as described above, the controlled circuit switching switch module 2 include
Diode D6, NPN triode Q4 and relay K1, the negative pole of the diode D6 and relay line on the relay K1
Enclose after an input is electrically connected and be connected with relay supply voltage VC, the positive pole of the diode D6 and the relay K1
Another input of upper relay coil, NPN triode Q4 colelctor electrode are electrically connected, the base stage conduct of the NPN triode Q4
The control signal input of controlled circuit switching switch module 2 is believed with the control of the first voltage comparator submodule 91 respectively
Number output end, the control signal output of second voltage comparator submodule 92 are electrically connected, the transmitting of the NPN triode Q4
Pole and the cathode output end of the current module 4 of the pressure limiting are electrically connected, movable contact and the confession of the relay K1 upper switch
Electricity output interface 1 is electrically connected, one group of stationary contact is electrically connected with the DC voltage input interface 3 and another group of stationary contact
Point is electrically connected with the rechargeable battery set module 7；The voltage comparator module 9 includes first voltage comparator submodule
91 and second voltage comparator submodule 92；The first voltage comparator submodule 91 includes resistance R23, resistance R24, electricity
Hinder R25, resistance R26, resistance R27, voltage-stabiliser tube U4, electric capacity C10, amplifier chip LM358-B and diode D4, the resistance
Electrode input end as the first voltage comparator submodule 91 after R23 one end and described resistance R25 one end are electrically connected
Electrically connected with the cathode output end of the current module 4 of the pressure limiting, the resistance R23 other ends and described resistance R24 one end, amplifier
Chip LM358-B positive input is electrically connected, the resistance R25 other ends and the voltage-stabiliser tube U4 negative pole connection end and
The reverse input end of reference electrode connection end, electric capacity C10 one end and amplifier chip LM358-B is electrically connected, the resistance
The R24 other ends and the voltage-stabiliser tube U4 anode connection terminal, the electric capacity C10 other ends, resistance R27 one end are used as institute after being electrically connected
State the negative input of first voltage comparator submodule 91 and the cathode output end of the current module 4 of the pressure limiting electrically connects, institute
The amplifier signal output part for stating amplifier chip LM358-B is electrically connected by the resistance R26 and the diode D4 positive poles, institute
State the control as the first voltage comparator submodule 91 after diode D4 negative poles are connected with the resistance R27 other ends
Signal output part is connected with the control signal input of the controlled circuit switching switch module 2；The second voltage compares
Device submodule 92 includes resistance R18, resistance R19, resistance R20, resistance R21, resistance R22, voltage-stabiliser tube U3, electric capacity C9, amplifier
Chip LM358-A, diode D5 and NPN triode Q3, described resistance R18 one end are electrically connected with described resistance R20 one end
Electrode input end and the cathode output end electricity of the current module 4 of the pressure limiting as the second voltage comparator submodule 92 afterwards
Connection, the positive input of the resistance R18 other ends and described resistance R19 one end, amplifier chip LM358-A are electrically connected,
Negative pole connection end and reference electrode connection end, electric capacity C9 one end, Yi Jiyun of the resistance R20 other ends with the voltage-stabiliser tube U4
The reverse input end for putting chip LM358-A is electrically connected, and the resistance R19 other ends are connected with the positive pole of the voltage-stabiliser tube U3
End, the electric capacity C9 other ends, resistance R22 one end, NPN triode Q3 emitter stage compare after being electrically connected as the second voltage
The negative input of device submodule 92 electrically connects with the cathode output end of the current module 4 of the pressure limiting, the amplifier chip
LM358-A amplifier signal output part is electrically connected by the resistance R21 and the diode D5 positive poles, the diode D5
The base stage of negative pole and the resistance R22, NPN triode Q3 is electrically connected, and the colelctor electrode of the NPN triode Q3 is as described
The control signal output of two voltage comparator submodules 92 and the control signal of the controlled circuit switching switch module 2 input
End is connected.
A kind of direct current pressure limiting uninterrupted power supply(ups) as described above, the A is 5V, B 10V, C 16V, D 30V.
Compared with prior art, the beneficial effects of the invention are as follows：
This case is simple in construction easily to be realized, control is flexible, when voltage is more than D voltages on DC voltage input interface,
Its module that can not be passed through by the pressure limiting exports, so as to play input over-voltage protecting function；When pressure limiting is passed through module output end
When out of power or voltage are not more than A voltages, the undertension with charge use and be not enough to drive electrical equipment, in this way, it is described by
Control charging module not start and the controlled charging output switch module is not switched on, rechargeable battery set module will not by by
Control charging output switch module and to controlled charging module direction discharge, so as to reduce loss, rechargeable battery set module by by
Control circuit switching switch module exports stored electric energy to electrical equipment, and it effectively realizes uninterrupted power source function；When defeated
When entering voltage between A voltages and D voltages, charge switch control module has detected electric input, controlled charging output switch mould
Block is turned on, and controlled charging module is charged by controlled charging output switch module to rechargeable battery set module, also, when input electricity
When being pressed between B voltages and C voltage, for electrical equipment, such voltage can be used directly, in this way, first voltage
The comparator submodule driving controlled circuit switching switch module carries out circuit switching, make the power supply output interface by by
Control circuit switching switch module to connect with the DC voltage input interface, it has prominent substantive distinguishing features and significantly entered
Step；And when input voltage is between A voltages and B voltages or between C voltage and D voltages, for electrical equipment, so
Voltage be not suitable for directly use, external dc electricity can only all first pass through controlled charging module and give rechargeable battery set module, then
Again by controlled circuit switching switch module to power supply for electrical equipment, it is easy to big to electrical equipment output rechargeable battery set module
Small suitable voltage, it has prominent substantive distinguishing features and significant progress.
Brief description of the drawings
Fig. 1 is the configuration diagram of this case.
Fig. 2 is one of circuit diagram of this case.
Fig. 3 is the two of the circuit diagram of this case.
Embodiment
Feature of present invention and other correlated characteristics are described in further detail by the following examples, in order to the same industry
The understanding of technical staff：
As shown in Figure 1-Figure 3, a kind of direct current pressure limiting uninterrupted power supply(ups), power supply output interface 1 is included, for circuit
Switching controlled circuit switching switch module 2 and sequentially electrically connect DC voltage input interface 3, for only allow less
In the current module 4 of the current pressure limiting of D voltage, controlled charging module 5, controlled charging output switch module 6, rechargeable battery set mould
Block 7, the DC voltage input interface 3, rechargeable battery set module 7 respectively by the controlled circuit switching switch module 2 with
The power supply output interface 1 electrically connects, the controlled circuit switching switch module 2 and the rechargeable battery set module 7 during no electricity
Connection, the current output end of module 4 of the pressure limiting have been also respectively connected with for when the current output end voltage of module 4 of pressure limiting is electric more than A
Just drive the controlled charging module 5 to start the charge initiation control module 51 of work during pressure and just drive the controlled charging defeated
Go out switch module 6 connection charge switch control module 8, for when pressure limiting pass through the output end voltage of module 4 be more than B voltages when
The controlled circuit switching switch module 2 and DC voltage input interface 3 is driven to connect and when pressure limiting is passed through the output end of module 4 electricity
Pressure disconnects the voltage comparator connected between controlled circuit switching switch module 2 and DC voltage input interface 3 when being more than C voltage
Module 9, wherein, A ＜ B ＜ C ＜ D, the output voltage of the rechargeable battery set module 7 is between B voltages and C voltage.
Easily realized as described above, this case is simple in construction, control is flexible, when voltage is big on DC voltage input interface 3
When D voltages, its module 4 that can not be passed through by the pressure limiting exports, so as to play input over-voltage protecting function；When pressure limiting is passed through
When the output end out of power of module 4 or voltage are not more than A voltages, the undertension uses and is not enough to drive electrical equipment to charge,
In this way, the controlled charging module 5 is not switched on without startup and the controlled charging output switch module 6, rechargeable battery set
Module 7 will not be discharged by controlled charging output switch module 6 to the direction of controlled charging module 5, so as to reduce loss, charging
Battery module 7 is exported stored electric energy to electrical equipment by controlled circuit switching switch module 2, and it is effectively realized not
Uninterruptible power function；When input voltage is between A voltages and D voltages, charge switch control module 8 has detected electric input,
Controlled charging output switch module 6 turns on, and controlled charging module 5 is by controlled charging output switch module 6 to rechargeable battery set
Module 7 charges, also, when input voltage is between B voltages and C voltage, and for electrical equipment, such voltage can be with
Directly use, cut in this way, first voltage comparator submodule 91 drives the controlled circuit switching switch module 2 to enter row line
Change, the power supply output interface 1 is connected by controlled circuit switching switch module 2 and the DC voltage input interface 3, its
With prominent substantive distinguishing features and significant progress；And when input voltage is between A voltages and B voltages or in C voltage and D electricity
When between pressure, for electrical equipment, such voltage is not suitable for directly using, and external dc electricity can only all first pass through controlled
Charging module 5 gives rechargeable battery set module 7, then rechargeable battery set module 7 again by controlled circuit switching switch module 2 to
Electric equipment power supply, it is easy to the voltage being adapted to electrical equipment output size, and it is with prominent substantive distinguishing features and significantly
It is progressive.
As described above, module 4 includes polar capacitor C1, electric capacity C2, voltage-stabiliser tube when it is implemented, the pressure limiting is passed through
ZD2, resistance R28, resistance R29, resistance R30, resistance R31, resistance R32, NPN triode Q5, NPN triode Q6 and field effect
Should pipe Q7, the S of the voltage-stabiliser tube ZD2 negative poles connection end and described resistance R30 one end, resistance R31 one end and FET Q7
Pole is used as the current electrode input end of module 4 of the pressure limiting after being electrically connected, the voltage-stabiliser tube ZD2 positive poles pass through the resistance R28
It is electrically connected with described resistance R29 one end, NPN triode Q5 base stage, the resistance R30 other ends and the NPN triode
Q5 colelctor electrode, NPN triode Q6 base stage are electrically connected, the resistance R31 other ends and the FET Q7 G poles,
Electric R32 one end is electrically connected, and the electric R32 other ends electrically connect with the emitter stage of the NPN triode Q6, the FET
Q7 D poles are used as the pressure limiting passing through module 4 just after being electrically connected with the polar capacitor C1 anode connection terminals, electric capacity C2 one end
Pole output end, the emitter stage, NPN triode Q6 emitter stage, polarity of the resistance R29 other ends and the NPN triode Q5
Electric capacity C1 negative poles connection end, the electric capacity C2 other ends pass through the negative input of module 4 and negative after being electrically connected as the pressure limiting
Pole output end.
As described above, this case realizes overvoltage protection by pressure limiting module 4 of passing through, when input voltage is more than D voltages, surely
Pressure pipe ZD is turned on, and drives NPN triode Q5 to turn on by resistance R28, resistance R29 dividing point, so that NPN triode Q6
Cut-off, causes FET Q7 G pole tensions to be pulled up by resistance R31, causes FET Q7 to end, and the current module 4 of pressure limiting does not have
Output.
As described above, the charge initiation control module 51 includes voltage-stabiliser tube ZD1 and resistance R1, the voltage-stabiliser tube ZD1
Negative pole is electrically connected with the current cathode output end of module 4 of the pressure limiting, and the voltage-stabiliser tube ZD1 positive poles are mutually electrically connected with resistance R1 one end
As the control signal output of charge initiation control module 51 and the control signal input of controlled charging module 5 after connecing
It is connected, the resistance R1 other ends are electrically connected with the current cathode output end of module 4 of the pressure limiting.
As described above, when pressure limiting pass through the cathode output end voltage of module 4 be more than A voltages when, the voltage-stabiliser tube ZD1 and resistance
Tie point voltage is just high level between R1, and so as to control controlled charging module 5 to start work, otherwise controlled charging module 5 is not
Work, it realizes the low-voltage variation function to controlled charging module 5.
As described above, when it is implemented, the controlled charging output switch module 6 includes FET Q1, resistance
R16, resistance R17 and NPN triode Q2, the FET Q1 D poles are as the controlled charging output switch module 6
The connection end of switch one be electrically connected with the electrode input end of controlled charging module 5, the S poles of the FET Q1 with it is described
Another connection end of switch as the charging output switch module 6 and the rechargeable battery after resistance R16 one end is electrically connected
The group electrode input end of module 7 is electrically connected, the G poles of the FET Q1 and the resistance R16 other ends, resistance R17 one end
It is electrically connected, the colelctor electrode of the resistance R17 other ends and the NPN triode Q2 is electrically connected, the NPN triode Q2's
Emitter stage is electrically connected with the negative input of controlled charging module 5, and the base stage of the NPN triode Q2 is as described controlled
The control signal input of charging output switch module 6 is electrically connected with the control signal output of charge switch control module 8,
The charge switch control module 8 includes diode D1, resistance R14 and resistance R15, the diode D1 positive poles and institute
The current cathode output end of module 4 of pressure limiting to be stated to be electrically connected, the diode D1 negative poles are electrically connected with described resistance R14 one end,
The resistance R14 other ends are used as the control signal of charge switch control module 8 after being electrically connected with described resistance R15 one end
After output end and the control signal input of controlled charging output switch module 6 are electrically connected, the resistance R15 other ends with
The cathode output end of controlled charging module 5 is electrically connected.
As described above, this case controls controlled charging output switch by charge switch control module 8 by bleeder circuit
Whether FET Q1 connects in module 6, and it realizes convenient.
As described above, when it is implemented, the controlled circuit switching switch module 2 includes diode D6, NPN triode
Q4 and relay K1, the negative pole of the diode D6 are electrically connected with the input of relay coil one on the relay K1
It is connected afterwards with relay supply voltage VC, the positive pole of the diode D6 and relay coil on the relay K1 are another defeated
Enter end, NPN triode Q4 colelctor electrode be electrically connected, the base stage of the NPN triode Q4 is as controlled circuit switching switching molding
The control signal input of block 2 control signal output, the second voltage with the first voltage comparator submodule 91 respectively
The control signal output of comparator submodule 92 is electrically connected, and emitter stage and the pressure limiting of the NPN triode Q4 are passed through
The cathode output end of module 4 is electrically connected, and the movable contact of the relay K1 upper switch is electrically connected with the power supply phase of output interface 1
Connect, one group of stationary contact is electrically connected with the DC voltage input interface 3 and another group of stationary contact and the rechargeable battery set
Module 7 is electrically connected；The voltage comparator module 9 includes first voltage comparator submodule 91 and second voltage comparator
Submodule 92；The first voltage comparator submodule 91 includes resistance R23, resistance R24, resistance R25, resistance R26, resistance
R27, voltage-stabiliser tube U4, electric capacity C10, amplifier chip LM358-B and diode D4, described resistance R23 one end and the resistance
Passed through module as electrode input end and the pressure limiting of the first voltage comparator submodule 91 after being electrically connected R25 one end
4 cathode output end electrical connection, the resistance R23 other ends and described resistance R24 one end, amplifier chip LM358-B forward direction
Input is electrically connected, negative pole connection end and reference electrode connection end, electricity of the resistance R25 other ends with the voltage-stabiliser tube U4
The reverse input end for holding C10 one end and amplifier chip LM358-B is electrically connected, the resistance R24 other ends and the voltage stabilizing
Pipe U4 anode connection terminal, the electric capacity C10 other ends, resistance R27 one end are sub as the first voltage comparator after being electrically connected
The negative input of module 91 electrically connects with the cathode output end of the current module 4 of the pressure limiting, the amplifier chip LM358-B's
Amplifier signal output part is electrically connected by the resistance R26 and the diode D4 positive poles, the diode D4 negative poles and institute
State after the resistance R27 other ends are connected as the first voltage comparator submodule 91 control signal output with it is described by
The control signal input of control circuit switching switch module 2 is connected；The second voltage comparator submodule 92 includes electricity
Hinder R18, resistance R19, resistance R20, resistance R21, resistance R22, voltage-stabiliser tube U3, electric capacity C9, amplifier chip LM358-A, diode
D5 and NPN triode Q3, described resistance R18 one end are used as the second voltage after being electrically connected with described resistance R20 one end
The electrode input end of comparator submodule 92 electrically connects with the cathode output end of the current module 4 of the pressure limiting, and the resistance R18 is another
One end and described resistance R19 one end, amplifier chip LM358-A positive input are electrically connected, the resistance R20 other ends with
The negative pole connection end and reference electrode connection end of the voltage-stabiliser tube U4, electric capacity C9 one end and amplifier chip LM358-A it is reverse
Input is electrically connected, the resistance R19 other ends and the voltage-stabiliser tube U3 anode connection terminal, the electric capacity C9 other ends, resistance
R22 one end, NPN triode Q3 emitter stage be electrically connected after as the second voltage comparator submodule 92 negative pole input
The cathode output end with the current module 4 of the pressure limiting is held to electrically connect, the amplifier signal output part of the amplifier chip LM358-A leads to
Cross the resistance R21 to be electrically connected with the diode D5 positive poles, the diode D5 negative poles and the pole of resistance R22, NPN tri-
Pipe Q3 base stage is electrically connected, the control of the colelctor electrode of the NPN triode Q3 as the second voltage comparator submodule 92
Signal output part processed is connected with the control signal input of the controlled circuit switching switch module 2.
As described above, as described above, when input voltage is between B voltages and C voltage, for electrical equipment, this
The voltage of sample can be used directly, and amplifier chip LM358-B exports high level in the first voltage comparator module 9, makes institute
State NPN triode Q4 on controlled circuit switching switch module 2 to turn on, so as to drive the controlled circuit switching switch module 2
Relay K1 coil switch powers, power supply output interface 1 is set to be connect by controlled circuit switching switch module 2 and DC voltage input
Mouth 3 is connected；And when input voltage is more than C voltage, for electrical equipment, such overtension and be not suitable for directly make
With, amplifier chip LM358-A exports high level in the second voltage comparator module 10, turns on NPN triode Q3, so as to
Pressure drags down NPN triode Q4 base voltages on the controlled circuit switching switch module 2, NPN triode Q4 cut-offs, controlled line
Road switching switch module 2 resets the connection disconnected with the DC voltage input interface 3, and rechargeable battery set module 7 is by controlled
Circuit switching switch module 2 is to power supply for electrical equipment.
As described above, when it is implemented, the A is 5V, B 10V, C 16V, D 30V.
As described above, this case protection be a kind of direct current pressure limiting uninterrupted power supply(ups), all it is identical with this case structure or
Similar technical scheme should all be shown as falling into the protection domain of this case.
Claims (6)
1. a kind of direct current pressure limiting uninterrupted power supply(ups), it is characterised in that include power supply output interface (1), for circuit switching
Controlled circuit switching switch module (2) and sequentially electrically connect DC voltage input interface (3), for only allow less
In the current module (4) of the current pressure limiting of D voltage, controlled charging module (5), controlled charging output switch module (6), charging electricity
Pond group module (7), the DC voltage input interface (3), rechargeable battery set module (7) pass through the controlled circuit switching respectively
Switch module (2) electrically connects with the power supply output interface (1), the controlled circuit switching switch module (2) and institute during no electricity
State rechargeable battery set module (7) connection, pressure limiting module (4) output end of pass through has been also respectively connected with for when the current mould of pressure limiting
Block (4) output end voltage just drives the charge initiation control module of controlled charging module (5) the startup work when being more than A voltages
(51) with just drive charge switch control module (8) that the controlled charging output switch module (6) connects, for when pressure limiting is led to
Row module (4) output end voltage just drives the controlled circuit switching switch module (2) to be inputted with DC voltage when being more than B voltages
Interface (3), which is connected and passed through when pressure limiting when module (4) output end voltage is more than C voltage, disconnects controlled circuit switching switch module
(2) the voltage comparator module (9) being connected between DC voltage input interface (3), wherein, A ＜ B ＜ C ＜ D, the charging
The output voltage of battery module (7) is between B voltages and C voltage.
2. a kind of direct current pressure limiting uninterrupted power supply(ups) according to claim 1, it is characterised in that the pressure limiting is passed through mould
Block (4) includes polar capacitor C1, electric capacity C2, voltage-stabiliser tube ZD2, resistance R28, resistance R29, resistance R30, resistance R31, resistance
R32, NPN triode Q5, NPN triode Q6 and FET Q7, the voltage-stabiliser tube ZD2 negative poles connection end and the resistance
The S poles of R30 one end, resistance R31 one end and FET Q7 are used as current module (4) positive pole of the pressure limiting after being electrically connected
Input, the voltage-stabiliser tube ZD2 positive poles pass through the resistance R28 and described resistance R29 one end, NPN triode Q5 base stage phase
Electrical connection, the resistance R30 other ends are electrically connected with the colelctor electrode of the NPN triode Q5, NPN triode Q6 base stage,
G poles, electric R32 one end of the resistance R31 other ends and the FET Q7 are electrically connected, the electric R32 other ends and institute
State NPN triode Q6 emitter stage electrical connection, the D poles of the FET Q7 and the polar capacitor C1 anode connection terminals, electricity
Hold and passed through module (4) cathode output end as the pressure limiting after C2 one end is electrically connected, the resistance R29 other ends with it is described
NPN triode Q5 emitter stage, NPN triode Q6 emitter stage, polar capacitor C1 negative poles connection end, the electric capacity C2 other ends are mutually electric
Negative input and cathode output end after connection as the current module (4) of the pressure limiting.
A kind of 3. direct current pressure limiting uninterrupted power supply(ups) according to claim 1, it is characterised in that the charge initiation control
Molding block (51) includes voltage-stabiliser tube ZD1 and resistance R1, the voltage-stabiliser tube ZD1 negative poles and current module (4) positive pole of the pressure limiting
Output end is electrically connected, and the voltage-stabiliser tube ZD1 positive poles are used as charge initiation control mould after being electrically connected with resistance R1 one end
Block (51) control signal output is connected with controlled charging module (5) control signal input, the resistance R1 other ends
It is electrically connected with current module (4) cathode output end of the pressure limiting.
4. a kind of direct current pressure limiting uninterrupted power supply(ups) according to claim 1, it is characterised in that the controlled charging is defeated
Go out switch module (6) and include FET Q1, resistance R16, resistance R17 and NPN triode Q2, the FET Q1
D poles it is defeated as the connection end of switch one of the controlled charging output switch module (6) and controlled charging module (5) positive pole
Enter end to be electrically connected, the S poles of the FET Q1 are opened after being electrically connected with described resistance R16 one end as the charging output
Another connection end of switch for closing module (6) is electrically connected with rechargeable battery set module (7) electrode input end, the field-effect
Pipe Q1 G poles are electrically connected with the resistance R16 other ends, resistance R17 one end, the resistance R17 other ends and the NPN tri-
Pole pipe Q2 colelctor electrode is electrically connected, the emitter stage of the NPN triode Q2 and controlled charging module (5) negative input
Be electrically connected, the base stage of the NPN triode Q2 as controlled charging output switch module (6) control signal input with
Charge switch control module (8) control signal output is electrically connected；The charge switch control module (8) includes two
Pole pipe D1, resistance R14 and resistance R15, the diode D1 positive poles and current module (4) the cathode output end phase of the pressure limiting
Electrical connection, the diode D1 negative poles are electrically connected with described resistance R14 one end, the resistance R14 other ends and the resistance
R15 one end exports after being electrically connected as charge switch control module (8) control signal output and the controlled charging
After switch module (6) control signal input is electrically connected, the resistance R15 other ends are negative with the controlled charging module (5)
Pole output end is electrically connected.
5. a kind of direct current pressure limiting uninterrupted power supply(ups) according to claim 1, it is characterised in that the controlled circuit is cut
Change switch module (2) and include diode D6, NPN triode Q4 and relay K1, the negative pole of the diode D6 with it is described
It is connected after the input of relay coil one is electrically connected on relay K1 with relay supply voltage VC, the diode D6's
The colelctor electrode of positive pole and another input of relay coil on the relay K1, NPN triode Q4 is electrically connected, the NPN
Triode Q4 base stage as controlled circuit switching switch module (2) control signal input respectively with the first voltage ratio
Control signal output, the control signal output of second voltage comparator submodule (92) compared with device submodule (91) are mutually electrically connected
Connect, the cathode output end of the emitter stage of the NPN triode Q4 and the current module (4) of the pressure limiting is electrically connected, the relay
The movable contact of device K1 upper switch is electrically connected with the power supply output interface (1), one group of stationary contact inputs with the DC voltage
Interface (3) is electrically connected and another group of stationary contact is electrically connected with the rechargeable battery set module (7)；The voltage ratio compared with
Device module (9) includes first voltage comparator submodule (91) and second voltage comparator submodule (92)；First electricity
Pressure comparator submodule (91) includes resistance R23, resistance R24, resistance R25, resistance R26, resistance R27, voltage-stabiliser tube U4, electric capacity
C10, amplifier chip LM358-B and diode D4, described resistance R23 one end are made after being electrically connected with described resistance R25 one end
For the electrode input end and the cathode output end electricity of the current module (4) of the pressure limiting of the first voltage comparator submodule (91)
Connection, the positive input of the resistance R23 other ends and described resistance R24 one end, amplifier chip LM358-B are electrically connected,
The resistance R25 other ends and the voltage-stabiliser tube U4 negative pole connection end and reference electrode connection end, electric capacity C10 one end and
Amplifier chip LM358-B reverse input end is electrically connected, and the resistance R24 other ends are connected with the positive pole of the voltage-stabiliser tube U4
Negative pole as the first voltage comparator submodule (91) after end, the electric capacity C10 other ends, resistance R27 one end are electrically connected
Input electrically connects with the cathode output end of the current module (4) of the pressure limiting, and the amplifier signal of the amplifier chip LM358-B is defeated
Go out end to be electrically connected by the resistance R26 and the diode D4 positive poles, the diode D4 negative poles and the resistance R27 are another
Cut after being connected as the control signal output of the first voltage comparator submodule (91) with the controlled circuit one end
The control signal input for changing switch module (2) is connected；The second voltage comparator submodule (92) includes resistance
R18, resistance R19, resistance R20, resistance R21, resistance R22, voltage-stabiliser tube U3, electric capacity C9, amplifier chip LM358-A, diode D5,
And NPN triode Q3, described resistance R18 one end are used as the second voltage ratio after being electrically connected with described resistance R20 one end
Electrode input end compared with device submodule (92) electrically connects with the cathode output end of the current module (4) of the pressure limiting, the resistance R18
The positive input of the other end and described resistance R19 one end, amplifier chip LM358-A is electrically connected, the resistance R20 other ends
Negative pole connection end and reference electrode connection end, electric capacity C9 one end and amplifier chip LM358-A with the voltage-stabiliser tube U4 it is anti-
It is electrically connected to input, the resistance R19 other ends and the voltage-stabiliser tube U3 anode connection terminal, the electric capacity C9 other ends, electricity
Negative pole as the second voltage comparator submodule (92) after resistance R22 one end, NPN triode Q3 emitter stage are electrically connected
Input electrically connects with the cathode output end of the current module (4) of the pressure limiting, and the amplifier signal of the amplifier chip LM358-A is defeated
Go out end to be electrically connected by the resistance R21 and the diode D5 positive poles, the diode D5 negative poles and the resistance R22,
NPN triode Q3 base stage is electrically connected, and the colelctor electrode of the NPN triode Q3 is as the second voltage comparator submodule
(92) control signal output is connected with the control signal input of the controlled circuit switching switch module (2).
A kind of 6. direct current pressure limiting uninterrupted power supply(ups) according to claim 1-5 any one, it is characterised in that the A
For 5V, B 10V, C 16V, D 30V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711187725.6A CN107733076A (en) | 2017-11-24 | 2017-11-24 | A kind of direct current pressure limiting uninterrupted power supply(ups) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711187725.6A CN107733076A (en) | 2017-11-24 | 2017-11-24 | A kind of direct current pressure limiting uninterrupted power supply(ups) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107733076A true CN107733076A (en) | 2018-02-23 |
Family
ID=61219096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711187725.6A Withdrawn CN107733076A (en) | 2017-11-24 | 2017-11-24 | A kind of direct current pressure limiting uninterrupted power supply(ups) |
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| Country | Link |
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| CN (1) | CN107733076A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6172478B1 (en) * | 2000-02-23 | 2001-01-09 | Telxon Corporation | Power distribution in a portable device |
| CN201528222U (en) * | 2009-09-17 | 2010-07-14 | 臻隆国际航电股份有限公司 | Power supply protection device of architectural space wireless antitheft fire-fighting communication host |
| CN103607037A (en) * | 2013-11-01 | 2014-02-26 | 恒动能源（深圳）有限公司 | Switching apparatus of UPS power supply |
| CN104253477A (en) * | 2013-06-28 | 2014-12-31 | 索尼公司 | Power supply switching circuit, electronic device, and control method of power supply switching circuit |
| CN104333051A (en) * | 2013-07-22 | 2015-02-04 | 上海斐讯数据通信技术有限公司 | Mobile terminal and power supply method thereof |
-
2017
- 2017-11-24 CN CN201711187725.6A patent/CN107733076A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6172478B1 (en) * | 2000-02-23 | 2001-01-09 | Telxon Corporation | Power distribution in a portable device |
| CN201528222U (en) * | 2009-09-17 | 2010-07-14 | 臻隆国际航电股份有限公司 | Power supply protection device of architectural space wireless antitheft fire-fighting communication host |
| CN104253477A (en) * | 2013-06-28 | 2014-12-31 | 索尼公司 | Power supply switching circuit, electronic device, and control method of power supply switching circuit |
| CN104333051A (en) * | 2013-07-22 | 2015-02-04 | 上海斐讯数据通信技术有限公司 | Mobile terminal and power supply method thereof |
| CN103607037A (en) * | 2013-11-01 | 2014-02-26 | 恒动能源（深圳）有限公司 | Switching apparatus of UPS power supply |
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Application publication date: 20180223 |