CN105790375B - 5V power supply adaptor intelligent control circuit - Google Patents

5V power supply adaptor intelligent control circuit Download PDF

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Publication number
CN105790375B
CN105790375B CN201610264901.0A CN201610264901A CN105790375B CN 105790375 B CN105790375 B CN 105790375B CN 201610264901 A CN201610264901 A CN 201610264901A CN 105790375 B CN105790375 B CN 105790375B
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resistance
pin
diode
voltage
triode
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CN201610264901.0A
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CN105790375A (en
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刘举柱
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Lu'an City Tongxinchangneng Electronic Technology Co Ltd
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Lu'an City Tongxinchangneng Electronic Technology Co Ltd
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/027Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters with safety or indicating device
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302Overcharge protection

Abstract

A kind of 5V power supply adaptor intelligent control circuit, including firewire connecting pin, zero curve connecting pin, bidirectional triode thyristor, bilateral diode, button switch, first resistor, second resistance, photoelectrical coupler, U circuit, 14th resistance, 3rd resistor, regulator block, 4th resistance, 5th resistance, 6th resistance, 7th resistance, 8th resistance, 9th resistance, tenth resistance, eleventh resistor, twelfth resistor, thirteenth resistor, voltage comparator, first diode, second diode, third diode, 4th diode, first capacitor, first triode, second triode, third transistor and the 4th triode;Circuit structure of the present invention is simple, and practical application effect is good, makes electronic equipment after fully charged, automatic to disconnect 5V power supply adaptor power supply, and using electricity wisely prevents over-charging of battery, reaches the service life for extending electronic product battery.

Description

5V power supply adaptor intelligent control circuit
Technical field
The present invention relates to power control circuit technical fields, and in particular to a kind of 5V power supply adaptor intelligent control circuit.
Background technique
With the development of science and technology, there is each electronic product, and be widely used in various occasions.People house, Trip all be unable to do without electronic product, such as mobile phone, laptop, ipad, electric vehicle, and needing often to charge could remain normal Work.
By taking smart phone as an example, when power supply adaptor (i.e. charger) does not charge, you are to will continue to power supply of ining succession, Still pull out? it shows according to an investigation, since the smart phone power consumption generally used now is big, will almost charge daily, So for ease of use, people more than half will not pull out charger, but be connected on power supply always.
Charger is connected on power supply in zero load, still can power consumption.Such as mobile phone is although the electricity of consumption is seldom (national Proposed standard be less than 150 milliwatts), but according to having making for quite a lot of (at least accounting for 1/8) in nearly 1,000,000,000 mobile phone user in the whole nation This ratio that user does not pull out charger calculates, these power consumptions consumed in vain are 12500 kilowatts (by 100 milli of average consumption Watt calculate).And the no-load power consumption of a laptop adapter is even up to 5 watts, though separate unit power consumption is less, accumulation effect Fruit is surprising.In view of that there are also MP3, MP4, DVD, PDA, printer, plotter, liquid crystal display, phone composite aircraft and will push away The unloaded waste of wide intelligent glasses, the various portable mobile products such as smartwatch, power supply adaptor will be unimaginable.Even if no Consideration can overcome the advantages such as spontaneous combustion, elimination electromagnetic radiation pollution to promote the product only for Energy Angle and be equivalent to build The power plant that one carbon emission is zero!
If people have awareness of saving energy when using electric appliance, good consumption habit is formed, a large amount of energy can be saved, but It can not require hundreds of millions of electronic product users that can accomplish to pull out light source of charger in time after being finished.
Summary of the invention
Technical problem to be solved by the present invention lies in providing, a kind of circuit structure is simple, economic and environment-friendly 5V power adaptation Device intelligent control circuit.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of 5V power supply adaptor intelligent control circuit, including firewire connecting pin L1, zero curve connecting pin N1, bidirectional triode thyristor BT1, bilateral diode BT2, button switch AN1, first resistor R1, second resistance R2, photoelectrical coupler IC1, U circuit, the tenth Four resistance R14,3rd resistor R3, regulator block VT1, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, Eight resistance R8, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13, electricity Press comparator IC2, first diode D1, the second diode D2, third diode D3, the 4th diode D4, first capacitor C1, the One triode Q1, the second triode Q2, third transistor Q3 and the 4th triode Q4;
The firewire connecting pin L1 and zero curve connecting pin one end N1 are connected respectively on 220V power supply, the firewire connecting pin The L1 other end is connected to the 1st foot of U circuit, and the zero curve connecting pin N1 other end is connected to the 3rd foot of bidirectional triode thyristor BT1, 2 feet of the U circuit are connected to 1 foot of bidirectional triode thyristor BT1 and one end of bilateral diode BT2, the bilateral diode BT2's Another 3 feet for being connected to the one end second resistance R2 and photoelectrical coupler IC1, the second resistance R2 other end is through button switch AN1 is connected to the one end first resistor R1, and 4 feet of the photoelectrical coupler IC1 are connected to the one end first resistor R1, and first resistor R1 is another It is connected to 2 feet of bidirectional triode thyristor BT1;
5 feet of the U circuit are divided into two-way output, are connected to 1 foot of photoelectrical coupler IC1 through the 14th resistance R14 all the way, Another way is respectively connected to 8 feet of the one end 3rd resistor R3, voltage comparator ic 2, the 4th diode D4 cathode, twelfth resistor The one end R12, third diode D3 anode and positive 5V output end;
Another 1 foot and 3 feet for being connected to regulator block VT1 of the 3rd resistor R3, mono- end the 6th resistance R6 is connected to surely 1 foot and 3 feet and the 3rd resistor R3 other end of briquetting VT1 and the 4th one end resistance R4, the one end the 4th resistance R4 are also connected to 3 feet of regulator block VT1, another 2 feet for being connected to voltage comparator ic 2 of the 4th resistance R4,2 feet of the voltage comparator ic 2 It is connected to the 5th one end resistance R5, the 5th resistance R5 other end ground connection;The 6th resistance R6 other end and the 7th one end resistance R7 It is connected to 5 feet of voltage comparator ic 2, the 7th resistance R7 other end ground connection;3 feet of the voltage comparator ic 2 are connected to electricity 6 feet, the 8th one end resistance R8 and the negative 5V output end of comparator IC2 are pressed, the one end the 8th resistance R8 is also connected to voltage and compares 6 feet of device IC2, other end ground connection;
4th diode cathode, the twelfth resistor R12 other end and the one end first capacitor C1 are connected to the 13rd electricity Hinder the one end R3, first capacitor C1 other end ground connection, thirteenth resistor R13 is another to be connected to the 4th triode Q4 base stage, and described the Three diode cathodes, which are connected to, is connected to the 4th triode Q4 emitter, and the 4th triode Q4 collector is connected to the first triode D1 cathode and the tenth one end resistance R10, first diode D1 anode are connected to 1 foot of voltage comparator ic 2, the tenth resistance The R10 other end is respectively connected to the first triode Q1 base stage and the second triode Q2 collector, and the first triode Q1 emitter is grounded, First triode Q1 collector is connected to 2 feet of photoelectrical coupler IC1, the second triode Q2 emitter ground connection, the two or three pole Pipe Q2 base stage is connected to third transistor Q3 collector through eleventh resistor R11, and the third transistor Q3 base stage is through the 9th resistance R9 is connected to 7 feet of voltage comparator ic 2, and the third transistor Q3 emitter is connected to the second diode D2 cathode, the two or two pole Pipe D2 anode is connected to 8 feet of voltage comparator ic 2.
The 4th diode D4 provides discharge loop for first capacitor C1, and the 14th resistance R14 is photoelectrical coupler IC1 Internal illumination pipe current-limiting resistance.
The beneficial effects of the present invention are: circuit structure of the present invention is simple, practical application effect is good, electronic equipment can be made to exist Automatic to disconnect 5V power supply adaptor power supply after fully charged, using electricity wisely prevents over-charging of battery, reaches and extends electronic product electricity The service life in pond can be simultaneously reached the purpose of safety utilization of electric power.
Detailed description of the invention
Fig. 1 is integrated circuit figure of the present invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Conjunction is specifically illustrating, and the present invention is further explained.
As shown in Figure 1, a kind of 5V power supply adaptor intelligent control circuit, is connected to 220V power supply for the end L1 and N1 first On, button switch AN1 is clicked, the end L1 salt compounded of iodine is coupled to 2 foot of U circuit through U circuit internal circuit, punctures bilateral diode BT2 Output AC voltage is connected to 2 feet of bidirectional triode thyristor BT1 through resistance R2, through button switch AN1, through resistance R1, and triggering BT1 is bis- To controlled silicon conducting, make 1 foot of U circuit and 2 foot work once electrifieds, the 4 feet output 5V voltage of U circuit is connected to IC2LM393 group all the way At the integrated 8 feet power supply of voltage comparator, be connected to the anode of D3 diode all the way, the cathode of D3 diode is connected to Q4 tri- The emitter of pole pipe, while 5V voltage charges through R12 resistance box capacitor C1, while C1 capacitor charging, leads Q4 triode Logical, Q4 transistor collector, which exports high level, makes Q1 triode ON through R10 resistance, makes IC1 optocoupler work once electrified.IC1 optocoupler Internal illumination pipe obtains electroluminescence, so that photo resistance inside optocoupler is become very little, AN1 button switch has disconnected at this time, and BT2 is bis- The alternating voltage exported to diode keeps 2 feet of voltage output to BT1 bidirectional triode thyristor to make bidirectional triode thyristor through photo resistance It tends to remain on, U circuit tends to remain on.
The 5V voltage of U circuit output is when there is load to connect at this time, upper end, IC2 when such as charging the phone, in R8 resistance 6 feet of voltage comparator LM393 generate the voltage of about 0.1V-0.5V, another because R3 resistance one end is connected to one end of 5V voltage End is connected to 3 feet and 1 foot of VT1TL432 regulator block, and voltage clamping is in 1.4V after pressure stabilizing, through R6 resistance and R7 electric resistance partial pressure 5 feet for connecting IC2 voltage comparator afterwards, make 5 feet of IC2 voltage comparator be fixed on 0.6V, at this time the 7 of IC2 voltage comparator Foot output high level makes Q3 triode by Q4 triode is by the 1.4V voltage after VT1 pressure stabilizing also passes through R4 resistance at this time With 2 feet for being connected to IC2 voltage comparator after R5 electric resistance partial pressure, make 2 foot voltage clampings of IC2 voltage comparator in 0.08V, and 5V voltage charges to mobile phone at this time, because 3 feet of IC2 voltage comparator and 6 feet link together, 5V voltage Xiang Shouji at this time While charging, in the other end of R8 resistance, the voltage of 3 feet of IC2 voltage comparator and 6 feet generation about 0.1V-0.5V makes 3 foot voltages of IC2 voltage comparator are higher than 2 foot voltages, and the 1 foot output high level of IC2 voltage comparator is through D1 diode current flow It is held on Q1 triode by R10 resistance, is held on IC1 optocoupler, BT1 bidirectional triode thyristor is held on, and U circuit is protected Work is held, mobile phone keeps charging.
As C1 capacitor is fully charged quickly, Q1 triode is made to export low level by, Q1 transistor collector, and at this time Because 1 foot of IC2 voltage comparator still keeps output high level, it is held on Q1 triode, U circuit works normally.Work as mobile phone After fully charged, the voltage drop of very little is generated in 3 feet of IC2 voltage comparator and 6 feet, about only 0.05V voltage, makes IC2 voltage 3 foot voltages of comparator are lower than 2 foot voltage 0.08V, and 1 foot exports low level, make Q1 triode by, IC1 optocoupler power loss not work Make, BT1 bidirectional triode thyristor by, U down circuitry does not work, reach mobile phone it is fully charged after, it is automatic to disconnect 5V power supply adaptor electricity Source, using electricity wisely prevent battery of mobile phone from overcharging, and reach extending cell phone battery.
When the electronic equipments such as mobile phone or tablet computer for some reason, charging interface can generate poor contact and leak electricity short-circuit Phenomena such as, such as continuing to charge at this time, charging interface generates fever because electric leakage and indirect short circuit can make charging interface electric current excessive, Fire or battery can be generated because short circuit thermal generates the danger such as explosion.At this time when current is excessive, the 3 of IC2 voltage comparator Foot and 6 feet, which will generate, is higher than nominal charging voltage, and the voltage that normal R8 resistance generates is 0.1-0.5V or so, when load has short circuit When, as long as voltage is more than 0.7V, 6 foot voltages of IC2 voltage comparator are higher than 5 foot fixed voltage 0.6V at this time, and the output of 7 feet is low Level makes Q1 triode ON, makes Q2 triode ON, and Q2 transistor collector exports low level, makes at Q1 transistor base In low level, Q1 triode by, IC1 optocoupler power loss does not work, BT1 bidirectional triode thyristor by, so that U circuit power loss is not worked, Reach when output loading 5V electric leakage and short circuit, automatically power off, reached safety utilization of electric power, avoids because of load electric leakage and short circuit hair Raw dangerous problem.
On the basic principles, main features and the advantages of the invention have been shown and described.The technology people of the industry Member is it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this hairs Bright principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variations It all fall within the protetion scope of the claimed invention with improvement.The claimed scope of the invention is by appended claims and its waits Effect object defines.

Claims (1)

1. a kind of 5V power supply adaptor intelligent control circuit, which is characterized in that including firewire connecting pin (L1), zero curve connecting pin (N1), bidirectional triode thyristor (BT1), bilateral diode (BT2), button switch (AN1), first resistor (R1), second resistance (R2), Photoelectrical coupler (IC1), Switching Power Supply, the 14th resistance (R14), 3rd resistor (R3), regulator block (VT1), the 4th resistance (R4), the 5th resistance (R5), the 6th resistance (R6), the 7th resistance (R7), the 8th resistance (R8), the 9th resistance (R9), the tenth electricity Hinder (R10), eleventh resistor (R11), twelfth resistor (R12), thirteenth resistor (R13), voltage comparator (IC2), first Diode (D1), the second diode (D2), third diode (D3), the 4th diode (D4), first capacitor (C1), the one or three pole Manage (Q1), the second triode (Q2), third transistor (Q3) and the 4th triode (Q4);
The firewire connecting pin (L1) and the one end zero curve connecting pin (N1) are connected respectively on 220V power supply, the firewire connecting pin (L1) the AC220V power voltage supply that the other end is connected to Switching Power Supply inputs the 1st pin, zero curve connecting pin (N1) other end It is connected to the 3rd pin of supply input of the AC220V voltage of bidirectional triode thyristor (BT1), the AC220V voltage of the Switching Power Supply supplies Electricity the 2nd pin of input is connected to one end of voltage output the 1st pin and bilateral diode (BT2) of bidirectional triode thyristor (BT1), described Another inside photo resistance letter for being connected to second resistance one end (R2) and photoelectrical coupler (IC1) of bilateral diode (BT2) Number output the 3rd pin, second resistance (R2) other end is connected to the one end first resistor (R1) through button switch (AN1), described The photosensitive resistance signal in the inside of photoelectrical coupler (IC1) inputs the 4th pin and is connected to the one end first resistor (R1), first resistor (R1) Another the 2nd pin of signal input control for being connected to bidirectional triode thyristor (BT1);
Positive the 4th pin of 5V voltage output of the direct current of the Switching Power Supply is divided into two-way output, connects all the way through the 14th resistance (R14) Internal illumination pipe cathode voltage to photoelectrical coupler (IC1) inputs the 1st pin, and another way is respectively connected to 3rd resistor (R3) one End, voltage comparator (IC2) signal input the 8th pin, the 4th diode (D4) cathode, the one end twelfth resistor (R12), the Three diodes (D3) anode and positive 5V output end;
Another the 1st pin of zener diode cathode and zener diode for being connected to regulator block (VT1) of the 3rd resistor (R3) The 3rd pin of cathode, the 6th resistance (R6) end are connected to the 1st pin of zener diode cathode and the pressure stabilizing of regulator block (VT1) The 3rd pin of diode cathode and 3rd resistor (R3) other end and the 4th one end resistance (R4), described 4th resistance (R4) one end It is also connected to the 3rd pin of zener diode cathode of regulator block (VT1), the 4th resistance (R4) is another to be connected to voltage comparator (IC2) the 2nd pin of voltage input cathode, the 2nd pin of voltage input cathode of the voltage comparator (IC2) are connected to the 5th electricity Hinder the one end (R5), the 5th resistance (R5) other end ground connection;6th resistance (R6) other end and the 7th resistance (R7) one termination To positive 5th pin of voltage input of voltage comparator (IC2), the 7th resistance (R7) other end ground connection;The voltage ratio The 6th pin of voltage input cathode of voltage comparator (IC2), the 8th electricity are connected to compared with positive 3rd pin of the voltage input of device (IC2) The one end (R8) and negative 5V output end are hindered, the voltage input that described 8th resistance (R8) one end is also connected to voltage comparator (IC2) is negative The 6th pin of pole, other end ground connection;
4th diode (D4) anode, twelfth resistor (R12) other end and the one end first capacitor (C1) are connected to the tenth The one end three resistance (R3), first capacitor (C1) other end ground connection, thirteenth resistor (R13) is another to be connected to the 4th triode (Q4) Base stage, third diode (D3) cathode, which is connected to, is connected to the 4th triode (Q4) emitter, the 4th triode (Q4) Collector is connected to the first triode (D1) cathode and the tenth one end resistance (R10), and first diode (D1) anode is connected to voltage ratio Compared with the 1st pin of signal input pin voltage input cathode of device (IC2), the tenth resistance (R10) other end is respectively connected to first Triode (Q1) base stage and the second triode (Q2) collector, the first triode (Q1) emitter ground connection, the first triode (Q1) The internal illumination pipe cathode voltage that collector is connected to photoelectrical coupler (IC1) inputs the 2nd pin, the second triode (Q2) hair Emitter grounding, the second triode (Q2) base stage are connected to third transistor (Q3) collector, the third through eleventh resistor (R11) The signal that triode (Q3) base stage is connected to voltage comparator (IC2) through the 9th resistance (R9) exports the 7th pin, the three or three pole Pipe (Q3) emitter is connected to the second diode (D2) cathode, and the second diode (D2) anode is connected to the letter of voltage comparator (IC2) Number input the 8th pin;The regulator block (VT1) is TL431 regulator block, and the voltage comparator (IC2) is LM393 comparator.
CN201610264901.0A 2016-04-25 2016-04-25 5V power supply adaptor intelligent control circuit Active CN105790375B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109038733B (en) * 2018-08-07 2020-04-28 六安市同心畅能电子科技有限公司 5VUSB data line with full-charge automatic power-off function
CN109066931A (en) * 2018-08-23 2018-12-21 合肥斯姆雷品牌管理有限公司 Power supply adapter for notebook computer D/C voltage intelligent charge connecting line
CN109494829B (en) * 2018-10-26 2020-11-27 六安市同心畅能电子科技有限公司 Standby automatic power-off control circuit of 5V USB power adapter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240883A2 (en) * 1986-04-05 1987-10-14 ABB CEAG Licht- und Stromversorgungstechnik GmbH Method for obtaining a deep discharge protection for a rechargeable battery, and circuit arrangement to perform the method
CN102830783A (en) * 2012-09-25 2012-12-19 刘举柱 Intelligent power line of notebook computer power
CN203574435U (en) * 2013-10-17 2014-04-30 天水华天微电子股份有限公司 Charger control circuit
CN205646892U (en) * 2016-04-25 2016-10-12 六安市同心畅能电子科技有限公司 5V power adapter intelligent control circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240883A2 (en) * 1986-04-05 1987-10-14 ABB CEAG Licht- und Stromversorgungstechnik GmbH Method for obtaining a deep discharge protection for a rechargeable battery, and circuit arrangement to perform the method
CN102830783A (en) * 2012-09-25 2012-12-19 刘举柱 Intelligent power line of notebook computer power
CN203574435U (en) * 2013-10-17 2014-04-30 天水华天微电子股份有限公司 Charger control circuit
CN205646892U (en) * 2016-04-25 2016-10-12 六安市同心畅能电子科技有限公司 5V power adapter intelligent control circuit

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