CN106100105B - A kind of low pressure low current Uninterruptible Power Module - Google Patents
A kind of low pressure low current Uninterruptible Power Module Download PDFInfo
- Publication number
- CN106100105B CN106100105B CN201610548513.5A CN201610548513A CN106100105B CN 106100105 B CN106100105 B CN 106100105B CN 201610548513 A CN201610548513 A CN 201610548513A CN 106100105 B CN106100105 B CN 106100105B
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 47
- 230000005611 electricity Effects 0.000 claims description 8
- 210000004899 c-terminal region Anatomy 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention belongs to uninterruptible power supply power supply unit fields, and in particular to a kind of low pressure low current Uninterruptible Power Module for microcomputer device.This module includes at least the AC/DC circuit being electrically connected with city, for determining AC/DC circuit start operating voltage and normal low-voltage control circuit, charging and discharging lithium battery circuit, the DC/DC circuit being connected to lithium battery and the automatic hard handover circuit of lithium battery/alternating current for falling operating voltage.This module use cost is low and compact, can stablize and reliably realize that lithium battery/mains-supplied is switched fast, to realize that electrical equipment is less or the uninterrupted power supply demand of single equipment.
Description
Technical field
The invention belongs to uninterruptible power supply power supply unit fields, and in particular to for the small electricity of a kind of low pressure in microcomputer device
Flow Uninterruptible Power Module.
Background technique
Currently, microcomputer device is widely used in all trades and professions.Most of microcomputer devices are using single alternating current as unique
Power supply, when abnormal conditions occurs in alternating current, microcomputer device stops working because losing power supply.Especially to certain important equipment
Such as fire-fighting class warning device, device is once out of service, can directly contribute the loss of personnel, property.With social science and technology
Development, UPS uninterruptible power supply is widely applied, it can when alternating current interrupts suddenly, can still continue for some time to
Apparatus such as computer power supply.However, UPS uninterruptible power supply, on the one hand because using battery system, and battery is using frequency
It is secondary it is inherently low in the case where often safeguard battery often occur and failed not know but without special messenger again, thus cause using
Hidden danger.On the other hand, inherently price is extremely high for UPS uninterruptible power supply, and volume is also huger, is mostly applied to large hospital
It is used Deng large-scale occasion, it is clear that be not also suitable for needing the electrical equipment of lower use cost and smaller fabricating yard less or single
One equipment occasion.
Summary of the invention
It is an object of the present invention to overcome above-mentioned the deficiencies in the prior art, between providing the structurally reasonable low pressure low current of one kind not
Source module is powered off, use cost is low and compact, can stablize and reliably realize lithium battery/mains-supplied and quickly cut
It changes, to realize that electrical equipment is less or the uninterrupted power supply demand of single equipment.
To achieve the above object, the invention adopts the following technical scheme:
A kind of low pressure low current Uninterruptible Power Module, it is characterised in that: this module includes at least the AC/ being electrically connected with city
DC circuit, for determining AC/DC circuit start operating voltage and normally falling low-voltage control circuit, the lithium battery of operating voltage
Charge-discharge circuit, the DC/DC circuit being connected to lithium battery and the automatic hard handover circuit of lithium battery/alternating current, in which:
AC/DC circuit includes filter, and the both ends of alternating current are then connected to bridge rectifier after being respectively communicated with filter
The end D1 and the end D3 connect the offline pwm switch in three ends after the primary coil of the end the D2 series transformer T1 of bridge rectifier
The end D, then be back to by the end S of the offline pwm switch in three ends the end D4 of bridge rectifier, the both ends difference of capacitor C1
Connect the end D2 and the end D4 of bridge rectifier；AC/DC circuit further includes feedback control module, and feedback control module is respectively communicated with
To the end G and the end S of the offline pwm switch in three ends；
Low-voltage control circuit includes the first triode Q1 and the second triode Q2, the first triode Q1 and the second triode
The end B of Q2 is one another in series via resistance R8 and R9, the end the E connection bridge rectifier electricity of the first triode Q1 and the second triode Q2
The end D4 on road, the end G of the C-terminal connection offline pwm switch in three ends of the second triode Q2；Low-voltage control circuit further includes
Controllable accurate source of stable pressure, the end D4 of the end the A connection bridge rectifier of controllable accurate source of stable pressure, the end K of controllable accurate source of stable pressure
The end D2 of bridge rectifier is connected and connect with resistance R6, and the end R of controllable accurate source of stable pressure connects after connecting with resistance R7
The C-terminal of one triode Q1；Low-voltage control circuit further includes zener diode DZ, and the anode of zener diode DZ is connected to resistance
On one-stage serial circuit between R8 and resistance R9, the cathode of zener diode DZ be connected to controllable accurate source of stable pressure the end K and
On one-stage serial circuit between resistance R6；
DC/DC circuit includes relay normally closed contact K1, and electric current is exported via lithium battery anode, by fuse FU, after
The normally closed node K1 of electric appliance, transformer T2 primary coil to the end D of switch at, then the end S by switching is back to lithium to resistance R3
Battery cathode；DC/DC circuit further includes the driving chip for realizing pulsewidth modulation, and the 1 end connection relay of driving chip is normal
It closes on the one-stage serial circuit between contact K1 and the primary coil of transformer T2, the end G of 2 end coupling cocks of driving chip,
At one-stage serial circuit between the end S and resistance R3 of 3 end coupling cocks of driving chip；DC/DC circuit further includes partial pressure mould
Block, division module is in series by resistance R4 and resistance R5, and division module bridges at the 5V secondary coil of transformer T2, and by
Extend feedback control lead and on the one-stage serial circuit that is connected between resistance R4 and resistance R5 in 4 ends of driving chip；
The automatic hard handover circuit of lithium battery/alternating current includes the resistance R1 and resistance R2 for dividing and being one another in series, the string
The both ends of connection circuit are respectively communicated with the end D2 and the end D4 of bridge rectifier；Voltage-type relay K and resistance R10 series connection after with electricity
It hinders R2 and forms parallel circuit；
Driving chip is LM3748.
The offline pwm switch in three ends is TOP221-Y；Switch is IRF7807；Controllable accurate source of stable pressure is
TL431-Z。
Fuse FU is detachable construction.
The beneficial effects of the present invention are:
1), entire power module is split as mains-supplied circuit and lithium battery power supply circuit by the present invention, is arranged in pairs or groups conventional
Charging and discharging lithium battery circuit and feedback control circuit, to realize stabilization of the invention and reliable lithium battery/mains-supplied
It is switched fast purpose.In use, mains-supplied circuit is mainly made of AC/DC circuit and low-voltage control circuit, in which: AC/DC
Alternating current is passed through rectification, transformation by circuit, to realize the multichannel constant voltage output of alternating current.Low-voltage control circuit is complete by preset value
At AC/DC circuit work initiation value and Voltage Drop normal operating value.Lithium battery power supply circuit is then mainly by lithium battery and DC/DC
Circuit is constituted, to complete the multichannel constant pressure source output of lithium battery.The automatic hard handover circuit of lithium battery/alternating current using voltage-type after
Controllability of the electric appliance K with respect to relay normally closed contact K1, by real-time detection line voltage, when switching lithium battery power supply with judgement
It carves, and realizes the reliable switching action of alternating current and lithium battery therewith.In view of power module miniaturization, low-power consumption in practical application
It is required that using the power semiconductor pipe structure of the integrated pulse width modulation of the offline pwm switch in three ends in AC/DC circuit, and
Pulsewidth modulation core in DC/DC circuit, which then uses, configures simple, the lesser pulsewidth modulation driving chip of power consumption, so that
A circuit voltage output accuracy is higher, and the microcomputer device operating voltage that output valve also can guarantee as standard finally makes tool of the present invention
For strong applicability, export the advantages that reliable, efficiency is higher.
Detailed description of the invention
Fig. 1 is schematic block circuit diagram of the invention；
Fig. 2 is the cooperation schematic diagram of alternating current, AC/DC circuit and low-voltage control circuit；
Fig. 3 is the cooperation schematic diagram of lithium battery Yu DC/DC circuit；
Fig. 4 is the automatic hard handover circuit diagram of lithium battery/alternating current of the invention.
It illustrates each label and the names of the parts corresponding relationship of the present invention is as follows:
The offline pwm switch 30- feedback control module in tri- end 10- filter 20-
40- low-voltage control circuit 41- controllable accurate source of stable pressure
50- switch 60- driving chip 70- division module
Specific embodiment
For ease of understanding, specific implementation structure of the invention and workflow are described below here in connection with attached drawing:
A kind of low pressure low current Uninterruptible Power Module is mainly controlled by AC/DC circuit, low-voltage as shown in Figs 1-4
Automatic five part of hard handover circuit of circuit 40, DC/DC circuit, charging and discharging lithium battery circuit, lithium battery/alternating current is composed.Its
In: AC/DC circuit connect composition mains-supplied circuit with low-voltage control circuit 40.Charging and discharging lithium battery circuit is completed to lithium electricity
Pond charging and discharging time check.Lithium battery and DC/DC circuit connection form lithium battery power supply circuit.Lithium battery/alternating current is automatic
Hard handover circuit is for mains-supplied and lithium battery power supply loop switch.It is returned by setting mains-supplied circuit and lithium battery power supply
Road realizes the no-delay switching power supply of lithium battery in alternating current missing to ensure.Charging and discharging lithium battery circuit and feedback control mould
Block 30 is used as custom circuit loading module, using current custom circuit.
As shown in Fig. 2, AC/DC circuit mainly includes filter 10, bridge rectifier, capacitor C1, transformer, three ends
Offline pwm switch TOP221-Y.Alternating current is followed by filter 10, bridge rectifier, capacitor C1, transformer
T1, the offline pwm switch TOP221-Y in three ends.And low-voltage control circuit 40 then passes through the control offline pulsewidth modulation in three ends
The feedback end namely C-terminal of switch TOP221-Y, to realize the starting of low pressure definite value and the Voltage Drop locking operation function of circuit.
Transformer T1 uses the inverse-excitation type way of output, exports three tunnel normal voltages: 5V 15V 24V.
As shown in Figure 2, DC/DC circuit mainly includes lithium battery, fuse FU, relay normally closed contact K1, driving core
Piece 60, low-power consumption high speed MOSFET namely switch 50, resistance R3, resistance R4, resistance R5, transformer T2.Fuse FU is used can
Detachable guarantees that lithium battery is lossless during module does not put into operation.Relay normally closed contact K1 control lithium battery operation is moved back
It runs out.Driving chip 60 uses LM3478, it is a kind of low-power consumption high speed pulse width modulation output driving chip 60, normal minimum
Operating voltage can reach 2.97V, ensures that lithium battery is sufficiently powered, extends the module for power supply time.By to resistance R3 both end voltage
Detection is, it can be achieved that MOSFET overcurrent protection.The 5V output end of time variant voltage T2 becomes parallel way output using two-pack at Fig. 3, makes
The output power of output end when can increase lithium battery power supply with the way of output, output when flyback equally can be used in transformer T2
Mode exports three tunnel normal voltages: 5V 15V 24V.As division module 70, by the concatenation of resistance R4 and resistance R5, and
Extend feedback signal input lead at circuit between the two to connect 4 ends of MOSFET.
As shown in figure 4, the automatic hard handover circuit of lithium battery/alternating current of the invention is realized by relay: the circuit both ends
S1, S2 are connected respectively to rectifier bridge output positive and negative electrode both ends namely the end D2 shown in FIG. 1 and the end D4, pass through resistance R1 and resistance
The effect of R2 partial pressure, reloads the both ends voltage-type relay K.When mains-supplied, voltage-type relay K is powered, and makes shown in Fig. 3
DC/DC circuit relay electric appliance normally closed contact K1 is opened, to cut off lithium battery power supply；When alternating current disappears, voltage-type relay K is lost
Electricity, relay normally closed contact K1 closure, the function can ensure that lithium battery/mains-supplied reliably switches.
Claims (3)
1. a kind of low pressure low current Uninterruptible Power Module, it is characterised in that: this module includes at least the AC/DC being electrically connected with city
Circuit, for determine AC/DC circuit start operating voltage and normally fall operating voltage low-voltage control circuit (40), lithium electricity
Pond charge-discharge circuit, the DC/DC circuit being connected to lithium battery and the automatic hard handover circuit of lithium battery/alternating current, in which:
AC/DC circuit includes filter (10), and the both ends of alternating current are then connected to bridge rectifier electricity after being respectively communicated with filter (10)
The end D1 and the end D3 on road connect the offline pulsewidth modulation in three ends after the primary coil of the end the D2 series transformer T1 of bridge rectifier
The end D of (20) is switched, then is back to the end D4 of bridge rectifier, capacitor by the end S of the offline pwm switch in three ends (20)
The both ends of C1 are separately connected the end D2 and the end D4 of bridge rectifier；AC/DC circuit further includes feedback control module (30), feedback
Control module (30) is respectively communicated at the end G and the end S of the offline pwm switch in three ends (20)；
Low-voltage control circuit (40) includes the first triode Q1 and the second triode Q2, the first triode Q1 and the second triode
The end B of Q2 is one another in series via resistance R8 and R9, the end the E connection bridge rectifier electricity of the first triode Q1 and the second triode Q2
The end D4 on road, the end G of the C-terminal connection offline pwm switch in three ends (20) of the second triode Q2；Low-voltage control circuit
It (40) further include controllable accurate source of stable pressure (41), the end D4 of the end the A connection bridge rectifier of controllable accurate source of stable pressure (41) can
It connects with resistance R6 and connect the end D2 of bridge rectifier, controllable accurate source of stable pressure (41) in the end K of control precision voltage regulator (41)
The end R connect with resistance R7 after connect the C-terminal of the first triode Q1；Low-voltage control circuit (40) further includes zener diode
DZ, the anode of zener diode DZ are connected on the one-stage serial circuit between resistance R8 and resistance R9, zener diode DZ's
Cathode is connected on the one-stage serial circuit between the end K and resistance R6 of controllable accurate source of stable pressure (41)；
DC/DC circuit includes relay normally closed contact K1, and electric current is exported via lithium battery anode, passes through fuse FU, relay
Normally closed node K1, transformer T2 primary coil to switch (50) the end D at, then the end S by switching (50) to resistance R3 return
To cathode of lithium battery；DC/DC circuit further includes the driving chip (60) for realizing pulsewidth modulation, 1 end of driving chip (60)
It is connected on the one-stage serial circuit between relay normally closed contact K1 and the primary coil of transformer T2, the 2 of driving chip (60)
Hold the end G of coupling cock (50), the one-stage serial between the end S and resistance R3 of 3 end coupling cocks (50) of driving chip (60)
At circuit；DC/DC circuit further includes division module (70), and division module (70) is in series by resistance R4 and resistance R5, partial pressure
Module (70) bridges at the 5V secondary coil of transformer T2, and extends feedback control lead by 4 ends of driving chip (60)
And it is connected on the one-stage serial circuit between resistance R4 and resistance R5；
The automatic hard handover circuit of lithium battery/alternating current includes the resistance R1 and resistance R2 for dividing and being one another in series, the series electrical
The both ends on road are respectively communicated with the end D2 and the end D4 of bridge rectifier；Voltage-type relay K and resistance R10 series connection after with resistance R2
Form parallel circuit；
Driving chip (60) is LM3748.
2. a kind of low pressure low current Uninterruptible Power Module according to claim 1, it is characterised in that: three end is offline
Pwm switch (20) is TOP221-Y；Switching (50) is IRF7807；Controllable accurate source of stable pressure (41) is TL431-Z.
3. a kind of low pressure low current Uninterruptible Power Module according to claim 1 or 2, it is characterised in that: fuse FU
For detachable construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610548513.5A CN106100105B (en) | 2016-07-13 | 2016-07-13 | A kind of low pressure low current Uninterruptible Power Module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610548513.5A CN106100105B (en) | 2016-07-13 | 2016-07-13 | A kind of low pressure low current Uninterruptible Power Module |
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| CN106100105A CN106100105A (en) | 2016-11-09 |
| CN106100105B true CN106100105B (en) | 2018-12-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109188946B (en) * | 2017-06-30 | 2021-04-27 | 沈阳新松机器人自动化股份有限公司 | Controller, electric bed and electric wheelchair |
| CN107508351A (en) * | 2017-09-01 | 2017-12-22 | 郑州云海信息技术有限公司 | A kind of backup electric supply installation |
| CN110474421A (en) * | 2019-07-31 | 2019-11-19 | 苏州思源科安信息技术有限公司 | A kind of uninterruption power source and method of supplying power to for more biometric apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269118A (en) * | 2013-05-27 | 2013-08-28 | 浙江南峰电气有限公司 | Back-up source power supply control circuit |
| CN103529923A (en) * | 2013-10-14 | 2014-01-22 | 无锡艾科瑞思产品设计与研究有限公司 | Computer built-in uninterruptible power supply emergency system |
| CN205945212U (en) * | 2016-07-13 | 2017-02-08 | 国家电网公司 | Low pressure undercurrent uninterrupted power source module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010519885A (en) * | 2007-02-15 | 2010-06-03 | オゼンク，セルギン | Application of the method to SMPS circuits with multiple AC / DC inputs, as well as computer power supplies and laptop adapters |
| US9520747B2 (en) * | 2010-05-27 | 2016-12-13 | Jageson Electronic Technology (Shenzhen) Co., Ltd. | Two-input uninterruptible voltage converting device and method thereof |
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- 2016-07-13 CN CN201610548513.5A patent/CN106100105B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269118A (en) * | 2013-05-27 | 2013-08-28 | 浙江南峰电气有限公司 | Back-up source power supply control circuit |
| CN103529923A (en) * | 2013-10-14 | 2014-01-22 | 无锡艾科瑞思产品设计与研究有限公司 | Computer built-in uninterruptible power supply emergency system |
| CN205945212U (en) * | 2016-07-13 | 2017-02-08 | 国家电网公司 | Low pressure undercurrent uninterrupted power source module |
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