CN206272333U - A kind of online adaptive switched power management modules free of discontinuities of DC DC - Google Patents

A kind of online adaptive switched power management modules free of discontinuities of DC DC Download PDF

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Publication number
CN206272333U
CN206272333U CN201621214576.9U CN201621214576U CN206272333U CN 206272333 U CN206272333 U CN 206272333U CN 201621214576 U CN201621214576 U CN 201621214576U CN 206272333 U CN206272333 U CN 206272333U
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China
Prior art keywords
power supply
source
resistance
diode
load
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Expired - Fee Related
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CN201621214576.9U
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Chinese (zh)
Inventor
方振国
施锦晶
陆由超
韩润
严伟
李伟健
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Huaibei Normal University
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Huaibei Normal University
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Priority to CN201621214576.9U priority Critical patent/CN206272333U/en
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of online adaptive switched power management modules free of discontinuities of DC DC, including power supply, switching circuit, charging circuit, back-up source, load;Switching circuit and charging circuit connect the two ends of power supply, the connection load of switching circuit output end;In power supply normal power supply, D1 conductings when voltage is more than back-up source voltage, back-up source charges, and D2 cut-offs, back-up source disconnects with load, only powered to the load by power supply;When power supply is powered off, D1 cut-off D2 conductings are powered to the load by back-up source.When connecting back-up source first, by D3, R7 charges and causes that Q2 is turned on power supply to C1, turns on Q3 because C1 stores certain electric charge, it is ensured that back-up source is load supplying.The utility model simple structure, small volume, low cost realizes online switching free of discontinuities, and the response time is short, long service life, and autonomous switching is effectively protected circuit.

Description

A kind of online adaptive switched power management modules free of discontinuities of DC-DC
Technical field
The utility model is related to a kind of power management module, more particularly to a kind of online adaptive switched electricity free of discontinuities of DC-DC Source control module.
Background technology
In recent years, with the fast development of electronic industry technology, Portable mobile electronic device is popularized, Largely it is related to the switching online free of discontinuities that safe equipment requirement can be realized between power supply and stand-by power supply, online nothing Interruption converter technique is widely used in ups system, solar electric power supply system, drive system of electric automobile and space power system In.The main device in various process of the online converter techniques of DC-DC in the market is core, is supplied with multiple sensors circuit supervision Electric situation, the switching between power supply is realized with the break-make of relay or electronic switch, there is control system complexity, switching speed Degree is slow, and service life is short, the shortcomings of cost performance is relatively relatively low.
Utility model content
In order to solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of small volume, cost Low, contactless, long service life, control circuit is simple, and can be that DC-DC that back-up source charges is online free of discontinuities autotomy Change power management module.
To reach above-mentioned purpose, the technological means that the utility model is used is:A kind of DC-DC is online free of discontinuities to be autotomyed Change power management module, including power supply, switching circuit, charging circuit, back-up source, load;Switching circuit and the electricity that charges Road connects the two ends of power supply, the connection load of switching circuit output end;The switching circuit includes diode D1, D2, D3, electricity Hinder R1, R5, R6, R7, R8, R9, pliotron Q1, triode Q2, metal-oxide-semiconductor Q3, electric capacity C1;
Wherein power supply one end is grounded, and the other end connects the positive pole of diode D1, D3 and the negative pole of diode D2 and electricity Hinder the concurrent of R1, the emitter stage of insulated gate bipolar pliotron Q1 and one end of load;The colelctor electrode of triode Q2 connects The negative pole ground connection of the emitter stage, the other end of resistance R9 and electric capacity C1 of connecting resistance R5, triode Q2;The other end of resistance R5 with The other end concurrent of resistance R1 simultaneously connects the grid of insulated gate bipolar pliotron Q1;Insulated gate bipolar pliotron The emitter stage of Q1 and the other end of resistance R6, and one end of resistance R8 connect;The grid of the other end connection metal-oxide-semiconductor Q3 of R8, The source ground of metal-oxide-semiconductor Q3, the other end of drain electrode connection load;
Back-up source one end is grounded, and the other end connects the negative pole of diode D1 and the positive pole of diode D2;Diode D3's One end of negative pole connection resistance R7, the positive pole of the other end connection electric capacity C1 of resistance R7, one end of resistance R6, R9 and triode Q2 Base stage;
During power supply normal power supply, the voltage of the voltage more than back-up source of normal power supply, diode D1 conductings, power supply Power supply charges to back-up source, and diode D2 cut-offs, back-up source is separated with load, only from power supply to successive load Power supply;When powering off occurs in power supply, diode D1 ends immediately, and diode D2 is turned on rapidly, from back-up source to rear class Load supplying;When power supply is not accessed, when connecting back-up source first, metal-oxide-semiconductor Q3 is in cut-off state, and back-up source cannot Powered to rear class;After accessing power supply, power supply charges by diode D3, resistance R7 to electric capacity C3 so that triode Q2 is turned on, and triode Q2 conductings turn on insulated gate bipolar pliotron Q1 and metal-oxide-semiconductor Q3, are that rear class is powered, and work as power supply Power supply is again off, because electric capacity C3 stores certain electric charge so that metal-oxide-semiconductor Q3 is turned on, it is ensured that back-up source is powered for rear class.
Further, the charging circuit includes TP4056, resistance R2, R3, R4, electric capacity C2, C3, and dual-colored LED charges and refers to Show lamp, wherein the 1 of TP4056,3 pin ground connection, 2 pin are grounded by resistance R2,4 pin connection power supply hot end, 4 pin with Polar capacitor C2 is set between ground, and 4 pin connection polar capacitor C2 positive poles set polar capacitor C3, the connection of 5 pin between 5 pin and ground The positive pole of polar capacitor C3,8 pin connection power supply hot end, and 7 pin are connected by R3, dual-colored LED charging indicator light, lead to Cross R4, dual-colored LED charging indicator light and connect 6 pin;Dual-colored LED charging indicator light is two LEDs of different colours.
Further, the metal-oxide-semiconductor is the enhanced metal-oxide-semiconductor of N-channel.
Further, the triode Q2 is NPN type triode.
Further, described diode D1, D2 are fast recovery diode, reverse recovery time 35-85nS.
The beneficial effects of the utility model are:Circuit structure is simple, main to be realized online continuously using fast recovery diode Disconnected switching, improves transformation rate, realizes free of discontinuities, and the diode response time is short, and long service life is contactless, is not required to Circuit is controlled, autonomous switching is realized according to functional requirement, reduce cost, reduce volume, be effectively protected circuit.
Brief description of the drawings
The utility model is further elaborated with reference to the accompanying drawings and examples.
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is charging circuit schematic diagram of the present utility model.
Specific embodiment
As shown in figure 1, a kind of online adaptive switched power management modules free of discontinuities of DC-DC, including power supply, switching electricity Road, charging circuit, back-up source, load;Switching circuit and charging circuit connect the two ends of power supply, switching circuit output end Connection load;The switching circuit includes diode D1, D2, D3, resistance R1, R5, R6, R7, R8, R9, pliotron Q1, three Pole pipe Q2, metal-oxide-semiconductor Q3, electric capacity C1;Wherein power supply one end is grounded, and the other end connects positive pole and two poles of diode D1, D3 One end of the negative pole of pipe D2 and the concurrent of resistance R1, the emitter stage of insulated gate bipolar pliotron Q1, and load;Standby Power supply one end is grounded, and the other end connects the negative pole of diode D1 and the positive pole of diode D2;The negative pole connection resistance of diode D3 One end of R7, the positive pole of the other end connection electric capacity C1 of resistance R7, one end of resistance R6, R9 and the base stage of triode Q2;Three poles The colelctor electrode connection resistance R5 of pipe Q2, the negative pole ground connection of the emitter stage, the other end of resistance R9 and electric capacity C1 of triode Q2;Electricity The other end of R5 is hindered with the other end concurrent of resistance R1 and is connected the grid of insulated gate bipolar pliotron Q1;Insulated gate is double The colelctor electrode of polar form pliotron Q1 and the other end of resistance R6, and one end of resistance R8 connect;The other end connection of R8 The grid of metal-oxide-semiconductor Q3, the source ground of metal-oxide-semiconductor Q3, the other end of drain electrode connection load.
During power supply normal power supply, A point voltages are equal with B point voltages, i.e. UA=UB, the voltage UA of normal power supply is more than The voltage of back-up source, D1 conductings, power supply charges to back-up source, and D2 cut-offs, back-up source is separated with load, only From power supply to rear class load supplying;When powering-off state occurs in power supply, D1 ends immediately, and D2 is turned on rapidly, by rear To rear class load supplying, D1, D2 are fast recovery diode to stand-by power source, the reverse recovery time of 35-85nS, can be in 100 nanoseconds Time in realize conducting and cut-off between rapid switching.
When without externally fed power supply is accessed, when connecting back-up source first, because Q3 is in cut-off state, then standby Power supply cannot power to rear class.After accessing power supply, power supply is charged by D3, R7 to C1 so that Q2 is turned on.Q2 is turned on Q1 and Q3 is turned on, is that rear class is powered, when civil power is again off, because C1 stores certain electric charge, can still cause that Q3 leads It is logical, it is ensured that back-up source is powered for rear class.
Such as Fig. 2, charging circuit is set on power supply, the charging circuit includes TP4056, resistance R2, R3, R4, electricity Hold C2, C3,1, the 3 pin ground connection of dual-colored LED charging indicator light, wherein TP4056,2 pin are grounded by resistance R2, the connection power supply of 4 pin Power supply hot end, sets polar capacitor C2 between 4 pin and ground, and 4 pin connection polar capacitor C2 positive poles set between 5 pin and ground Polar capacitor C3 is put, the positive pole of 5 pin connection polar capacitor C3,8 pin connect power supply hot end, and by R3, dual-colored LED Charging indicator light connects 7 pin, and 6 pin are connected by R4, dual-colored LED charging indicator light;Dual-colored LED charging indicator light is two differences The LED of color, whether such as conventional red LED lamp and green LED lamp complete for indicating to charge.TP4056 is a complete Whole single lithium battery uses the linear charger of constant current/constant voltage.
In the prior art, general electric power system free of discontinuities is when adjustment and installation first or transport, because without outside The access of power supply, meeting automatic back-up source is powered to load, causes many equipment to need field adjustable to install, unfavorable In enterprise's batch production, assembling.The utility model mainly realizes online unremitting switching using fast recovery diode, improves Transformation rate, realizes free of discontinuities, and the diode response time is short, and long service life is contactless, it is not necessary to control circuit, according to Functional requirement realizes autonomous switching, and circuit structure is simple, reduces cost, reduces volume, is effectively protected circuit.
Embodiment disclosed in the utility model is the explanation to the technical solution of the utility model, it is impossible to used as to this The limitation of utility model content, simple change of the those skilled in the art on the basis of the utility model is still new in this practicality In the protection domain of type.

Claims (5)

1. online adaptive switched power management modules free of discontinuities of a kind of DC-DC, it is characterised in that:Including power supply, switching electricity Road, charging circuit, back-up source, load;Switching circuit and charging circuit connect the two ends of power supply, switching circuit output end Connection load;The switching circuit includes diode D1, D2, D3, resistance R1, R5, R6, R7, R8, R9, pliotron Q1, three Pole pipe Q2, metal-oxide-semiconductor Q3, electric capacity C1;
Wherein power supply one end is grounded, and the other end connects the positive pole of diode D1, D3 and the negative pole and resistance R1 of diode D2 Concurrent, the emitter stage of insulated gate bipolar pliotron Q1 and one end of load;The colelctor electrode connection electricity of triode Q2 Resistance R5, the negative pole ground connection of the emitter stage, the other end of resistance R9 and electric capacity C1 of triode Q2;The other end and resistance of resistance R5 The other end concurrent of R1 simultaneously connects the grid of insulated gate bipolar pliotron Q1;Insulated gate bipolar pliotron Q1's The other end of emitter stage and resistance R6, and one end of resistance R8 connects;The grid of the other end connection metal-oxide-semiconductor Q3 of R8, metal-oxide-semiconductor The source ground of Q3, the other end of drain electrode connection load;
Back-up source one end is grounded, and the other end connects the negative pole of diode D1 and the positive pole of diode D2;The negative pole of diode D3 One end of connection resistance R7, the positive pole of the other end connection electric capacity C1 of resistance R7, one end of resistance R6, R9 and the base of triode Q2 Pole;
During power supply normal power supply, the voltage of the voltage more than back-up source of normal power supply, diode D1 conductings, power supply Charged to back-up source, diode D2 cut-offs, back-up source is separated with load, is only supplied from power supply to successive load Electricity;When powering off occurs in power supply, diode D1 ends immediately, and diode D2 is turned on rapidly, is born from back-up source to rear class Carry power supply;When power supply is not accessed, when connecting back-up source first, metal-oxide-semiconductor Q3 is in cut-off state, and back-up source cannot be given Rear class is powered;After accessing power supply, power supply charges by diode D3, resistance R7 to electric capacity C3 so that triode Q2 Conducting, triode Q2 conductings turn on insulated gate bipolar pliotron Q1 and metal-oxide-semiconductor Q3, are that rear class is powered, when power supply electricity Source is again off, because electric capacity C3 stores certain electric charge so that metal-oxide-semiconductor Q3 is turned on, it is ensured that back-up source is powered for rear class.
2. online adaptive switched power management modules free of discontinuities of DC-DC according to claim 1, it is characterised in that:It is described Charging circuit includes TP4056, resistance R2, R3, R4, electric capacity C2, C3,1,3 pin of dual-colored LED charging indicator light, wherein TP4056 Ground connection, 2 pin are grounded by resistance R2,4 pin connection power supply hot end, setting polar capacitor C2,4 between 4 pin and ground Pin connects polar capacitor C2 positive poles, and polar capacitor C3 is set between 5 pin and ground, and the positive pole of 5 pin connection polar capacitor C3,8 pin connect Power supply hot end is connect, and 7 pin are connected by R3, dual-colored LED charging indicator light, by R4, dual-colored LED charging indicator light Connect 6 pin;Dual-colored LED charging indicator light is two LEDs of different colours.
3. online adaptive switched power management modules free of discontinuities of DC-DC according to claim 1, it is characterised in that:It is described Metal-oxide-semiconductor is the enhanced metal-oxide-semiconductor of N-channel.
4. online adaptive switched power management modules free of discontinuities of DC-DC according to claim 1, it is characterised in that:It is described Triode Q2 is NPN type triode.
5. online adaptive switched power management modules free of discontinuities of DC-DC according to claim 1, it is characterised in that:It is described Diode D1, D2 are fast recovery diode, 35~85nS of reverse recovery time.
CN201621214576.9U 2016-11-11 2016-11-11 A kind of online adaptive switched power management modules free of discontinuities of DC DC Expired - Fee Related CN206272333U (en)

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Application Number Priority Date Filing Date Title
CN201621214576.9U CN206272333U (en) 2016-11-11 2016-11-11 A kind of online adaptive switched power management modules free of discontinuities of DC DC

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CN201621214576.9U CN206272333U (en) 2016-11-11 2016-11-11 A kind of online adaptive switched power management modules free of discontinuities of DC DC

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109298337A (en) * 2018-08-27 2019-02-01 东莞市北斗星电子科技有限公司 Zero lotus of storage battery and its automatic monitoring big data terminal are transmitted based on UPS module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109298337A (en) * 2018-08-27 2019-02-01 东莞市北斗星电子科技有限公司 Zero lotus of storage battery and its automatic monitoring big data terminal are transmitted based on UPS module

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Granted publication date: 20170620

Termination date: 20191111