CN209200737U - A kind of automatic charger for mobile phone - Google Patents

A kind of automatic charger for mobile phone Download PDF

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Publication number
CN209200737U
CN209200737U CN201822007355.XU CN201822007355U CN209200737U CN 209200737 U CN209200737 U CN 209200737U CN 201822007355 U CN201822007355 U CN 201822007355U CN 209200737 U CN209200737 U CN 209200737U
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connect
npn triode
resistance
load cell
anode
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CN201822007355.XU
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Chinese (zh)
Inventor
吴建辉
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Luzhou One-Piece Technology Co Ltd
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Luzhou One-Piece Technology Co Ltd
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Abstract

The utility model discloses a kind of automatic chargers for mobile phone, AC power source is late-class circuit power supply, 3 foot of load cell passes through the 5th resistance, rectifier diode cathode is connect with anode, first NPN triode collector is connect with the second NPN triode collector, first NPN triode emitter respectively with the second NPN triode emitter, anode connection, first NPN triode emitter is connect with the second NPN transistor base, first NPN transistor base respectively with the second NPN triode collector, the connection of third NPN triode collector, 3rd resistor is connected with potentiometer, potentiometer sliding end is connect by the first breakdown pipe with third NPN transistor base.The utility model has the beneficial effects that making battery not to be constantly in charge mode by the connection of control AC power source and battery, improving its service life;It is charged by current constant mode, AC power source is detected by load cell and whether is connected with battery, there is no waste.

Description

A kind of automatic charger for mobile phone
Technical field
The utility model belongs to mobile phone charging technique field, and in particular to a kind of automatic charger for mobile phone.
Background technique
The development of mobile technology is maked rapid progress, and people are also growing day by day to its dependence.Honeycomb mobile communication equipment was both It brings to user using upper flexible and convenient, and has brought great riches.Battery charging is that every Mobile phone exists The technical problem that will be faced in design process, increasing with cell-phone function, display screen is gradually increased, so that The power consumption of mobile phone in use increases rapidly.
As the charge frequency of battery increases, the service life of battery may be subjected to influence, and therefore, battery more should when charging There are a kind of safe charging modes, to ensure the service life of battery, and existing charger can have the case where battery The lower connection for disconnecting power supply and late-class circuit, increases loss.
Utility model content
To overcome technological deficiency of the existing technology, the utility model discloses a kind of automatic chargings for mobile phone Whether device is battery charging by continuous current, and detects AC power source by load cell and connect with battery.
Technical solution adopted by the utility model to solve its technical problems is a kind of automatic charger for mobile phone, packets The self-charging road connecting with battery is included, self-charging road includes AC power source, load cell, transformer, rectifier bridge, capacitor, One resistance, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, potentiometer, the first breakdown pipe, rectification two Pole pipe, the first NPN triode, the second NPN triode, third NPN triode and the first luminous tube;
AC power source anode is connect with 1 foot of load cell, and 2 foot of load cell connects the primary side winding one of transformer End, AC power source negative terminal connect the primary side winding other end of transformer, and 3 foot of load cell passes through two poles of the 5th resistance and rectification The connection of pipe cathode, rectifier diode anode are connect with anode, and 4 foot of load cell is connect with the first luminous tube anode, the One luminous tube cathode passes through the 6th resistance eutral grounding, 5 foot of load cell ground connection;
Auxiliary winding one end of transformer is connect by one input terminal of rectifier bridge with the first NPN triode collector, transformation The auxiliary winding other end of device is connect by another input terminal of rectifier bridge with battery cathode, and capacitor is connected in parallel to two output end of rectifier bridge Between, the first NPN triode collector is connect by the 4th resistance with the second NPN triode collector, the first NPN triode hair Emitter-base bandgap grading is connect with the second NPN triode emitter, anode respectively by first resistor, and the first NPN triode emitter is also Connect by second resistance with the second NPN transistor base, the first NPN transistor base respectively with the second NPN triode current collection Pole, the connection of third NPN triode collector, 3rd resistor one end are connect with anode, the 3rd resistor other end and potentiometer First end connection, the second end of potentiometer connect with battery cathode, and potentiometer sliding end punctures pipe cathode with first and connect, the Blow poling anode is connect with third NPN transistor base, and third NPN triode emitter is connect with battery cathode.
Preferably, self-charging road further includes the second breakdown pipe, and the second breakdown pipe cathode is connect with 3 foot of load cell, the Two breakdown pipe plus earths.
Preferably, the model ZA-1N of load cell.
Preferably, self-charging road further includes the 7th resistance and the second luminous tube, the second luminous tube anode and tri- pole the 3rd NPN Pipe collector connection, the second luminous tube cathode are connect by the 7th resistance with battery cathode.
The utility model has the beneficial effects that its structure is simple, component is few, controls alternating current by detection battery capacity The connection in source and battery makes battery not to be constantly in charge mode, improves the service life of battery;It is electricity by continuous current Pond charging, and AC power source is detected by load cell and whether is connected with battery, when AC power source and battery connection, for electricity Pond power supply, on the contrary, battery automatically cuts off power supply after cancelling, there is no wasting, saves power switch, improves operation to charge Reliability.
Detailed description of the invention
Fig. 1 is a kind of specific embodiment schematic illustration of the utility model.
Fig. 2 is another specific embodiment schematic illustration of the utility model.
Appended drawing reference: E- battery, LSE- load cell, the first luminous tube of LED1-, the second luminous tube of LED2-, T- transformation Device, D1- rectifier diode, the breakdown pipe of ZD1- first, the breakdown pipe of ZD2- second, C- capacitor, the first NPN triode of Q1-, Q2- the Two NPN triodes, Q3- third NPN triode, R1- first resistor, R2- second resistance, R3- 3rd resistor, the 4th resistance of R4-, The 5th resistance of R5-, the 6th resistance of R6-, the 7th resistance of R7-, RP- potentiometer, A1- first end, A2- second end, A3- sliding end.
Specific embodiment
More detailed description is done to the embodiments of the present invention below in conjunction with attached drawing and appended drawing reference, makes to be familiar with ability The technology people in domain can implement accordingly after studying this specification carefully.It should be appreciated that specific embodiment described herein is only to solve The utility model is released, is not used to limit the utility model.
In the description of the present invention, it should be noted that the orientation of the instructions such as term " on ", "horizontal", "inner" or Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because This should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in utility model.
Embodiment: referring to attached drawing 1, a kind of attached automatic charger for mobile phone shown in Fig. 2, including connect with battery E Self-charging road, self-charging road includes AC power source, load cell LSE, transformer T, rectifier bridge, capacitor C, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, potentiometer RP, the first breakdown pipe ZD1, rectifier diode D1, the first NPN triode Q1, the second NPN triode Q2, third NPN triode Q3 and the first luminous tube LED1;
AC power source anode is connect with load cell LSE1 foot, and load cell LSE2 foot connects the primary side of transformer T Winding one end, AC power source negative terminal connect the primary side winding other end of transformer T, and load cell LSE3 foot passes through the 5th resistance R5 is connect with rectifier diode D1 cathode, and rectifier diode D1 anode is connect with battery E anode, load cell LSE4 foot and The connection of one luminous tube LED1 anode, the first luminous tube LED1 cathode are grounded by the 6th resistance R6, and load cell LSE5 foot connects Ground;
Auxiliary winding one end of transformer T is connect by one input terminal of rectifier bridge with the first NPN triode Q1 collector, is become The auxiliary winding other end of depressor T is connect by another input terminal of rectifier bridge with battery E cathode, and capacitor C is connected in parallel to rectifier bridge two Between output end, the first NPN triode Q1 collector is connect by the 4th resistance R4 with the second NPN triode Q2 collector, the One NPN triode Q1 emitter is connect with the second NPN triode Q2 emitter, battery E anode respectively by first resistor R1, the One NPN triode Q1 emitter also passes through second resistance R2 and connect with the second NPN triode Q2 base stage, the first NPN triode Q1 Base stage is connect with the second NPN triode Q2 collector, third NPN triode Q3 collector respectively, the one end 3rd resistor R3 and electricity The connection of pond E anode, the 3rd resistor R3 other end are connect with the first end A1 of potentiometer RP, the second end A2 and battery of potentiometer RP The connection of E cathode, current potential RP sliding end A3 are connect with the first breakdown pipe ZD1 cathode, the first breakdown pipe ZD1 anode and the 3rd NPN tri- The connection of pole pipe Q3 base stage, third NPN triode Q3 emitter are connect with battery E cathode.
In the present embodiment, the connection of AC power source and battery E is controlled by detection battery E electricity, makes battery E will not be always In charge mode, the service life of battery E is improved;It is battery E charging by continuous current, and passes through load cell LSE Whether detection AC power source is connected with battery E, there is no wasting, saves power switch, improves the reliability of operation.
Specifically, load cell LSE is a kind of dedicated for monitoring power-supply device output end and whether loading connection Senser element, it is directly connected in the output loop of power-supply device, implements monitoring to load, when loaded can turn on automatically Circuit powers to the load, and load can automatically cut off power supply after cancelling, and be not present and waste, thus can save power switch, improves The reliability of operation, in the present embodiment, battery E is to load.Wherein, the model ZA-1N of load cell LSE is shared Five connection pins, 1 foot and 2 feet seal in electric power loop, and 3 feet are detection foot, when 3 feet have voltage i.e. when loaded, 1 foot with 2 foot automatic switching ons, while 4 feet have positive voltage output;When i.e. non-loaded when 3 feet have no-voltage, 1 foot and 2 feet disconnect automatically, together When 4 feet without positive voltage export.
AC power source is depressured by transformer T, then is rectified into DC power supply by rectifier circuit, wherein rectifier bridge electricity Road is the prior art, and the first NPN triode Q1, the second NPN triode Q2, first resistor R1 and second resistance R2 are that battery E is mentioned For constant-current charge electric current, the first NPN triode Q1 emitter current generates pressure drop on first resistor R1, which is first The bias voltage of NPN triode Q1, when the first NPN triode Q1 emitter current increases, the pressure drop at the both ends first resistor R1 Increase, the angle of flow of the second NPN triode Q2 is caused to increase, thus decline the first NPN triode Q1 base bias voltage, the One NPN triode Q1 emitter current reduces therewith;On the contrary, when the first NPN triode Q1 emitter current reduces, the first electricity The pressure drop for hindering the both ends R1 reduces, and causes the angle of flow of the second NPN triode Q2 to reduce, to make the first NPN triode Q1 base stage Bias voltage rises, and the first NPN triode Q1 emitter current increases therewith, realizes constant current purpose, changes first resistor R1's Resistance value can change charging current value.
Third NPN triode Q3, the first breakdown pipe ZD1, potentiometer RP and 3rd resistor R3 are formed and are full of power-off protection function Can, specifically, 3rd resistor R3 and potentiometer RP divides battery E voltage, when battery E voltage reaches the first breakdown pipe When the pressure voltage of ZD1, the first breakdown pipe ZD1 conducting, third NPN triode Q3 conducting, third NPN triode Q3 collector level It is pulled low, the first NPN triode Q1 is caused to end, AC power source and battery E are disconnected, and stop charging.
When battery E is connect with self-charging road, load cell LSE is obtained by rectifier diode D1 and the 5th resistance R5 Voltage, load cell LSE1 foot and the connection of 2 feet, i.e., AC power source is connected to battery E, and 4 foot of load cell exports positive voltage Light the first luminous tube LED1, the 6th resistance R6 is current-limiting resistance;When battery E is not connect with self-charging road, load-transducing Device LSE can not obtain voltage by rectifier diode D1 and the 5th resistance R5, and load cell LSE1 foot and 2 feet are disconnected, that is, handed over Galvanic electricity source and late-class circuit disconnect, which can connect in AC power source over a long time, and unloaded almost nil.
Preferably, self-charging road further includes the second breakdown pipe ZD2, the second breakdown pipe ZD2 cathode and load cell LSE3 Foot connection, the second breakdown pipe ZD2 plus earth.
In another embodiment, the second breakdown pipe ZD2 is as protection device, and when battery E overtension, second is hit Poling ZD2 conducting, protects load cell LSE.
Preferably, self-charging road further includes the 7th resistance R7 and the second luminous tube LED2, the second luminous tube LED2 anode with The connection of third NPN triode Q3 collector, the second luminous tube LED2 cathode are connect by the 7th resistance R7 with battery E cathode.
In another embodiment, display device of the second luminous tube LED2 as battery E full state, in battery E After being full of, the first breakdown pipe ZD1 conducting causes third NPN triode Q3 to be connected, third NPN triode Q3 collector is pulled low To low level, the second luminous tube LED2 anode connecting with third NPN triode Q3 collector is pulled low, the second luminous tube made LED2 extinguishes, at this point, the connection of battery E and charger are disconnected after can extinguishing according to the second luminous tube LED2, wherein the 7th resistance R7 is the current-limiting resistance of the second luminous tube LED2, protects the second luminous tube LED2.
The above content is the further descriptions made in conjunction with specific preferred embodiment to the utility model, cannot recognize Determine specific embodiment of the present utility model to be only limited to these instructions.For the common skill of the utility model technical field For art personnel, the other embodiments obtained in the case where not departing from the technical solution of the utility model be should be included in practical In novel protection scope.

Claims (4)

1. a kind of automatic charger for mobile phone, it is characterised in that: including the self-charging road being connect with battery, self-charging road packet Include AC power source, load cell, transformer, rectifier bridge, capacitor, first resistor, second resistance, 3rd resistor, the 4th resistance, 5th resistance, the 6th resistance, potentiometer, the first breakdown pipe, rectifier diode, the first NPN triode, the second NPN triode, the Three NPN triodes and the first luminous tube;
AC power source anode is connect with 1 foot of load cell, and 2 foot of load cell connects primary side winding one end of transformer, is handed over The primary side winding other end of power supply negative terminal connection transformer is flowed, 3 foot of load cell is negative by the 5th resistance and rectifier diode Pole connection, rectifier diode anode are connect with anode, and 4 foot of load cell is connect with the first luminous tube anode, the first hair Light pipe cathode passes through the 6th resistance eutral grounding, 5 foot of load cell ground connection;
Auxiliary winding one end of transformer is connect by one input terminal of rectifier bridge with the first NPN triode collector, transformer The auxiliary winding other end is connect by another input terminal of rectifier bridge with battery cathode, capacitor be connected in parallel to two output end of rectifier bridge it Between, the first NPN triode collector is connect by the 4th resistance with the second NPN triode collector, the transmitting of the first NPN triode Pole is connect with the second NPN triode emitter, anode respectively by first resistor, and the first NPN triode emitter is also logical Second resistance is crossed to connect with the second NPN transistor base, the first NPN transistor base respectively with the second NPN triode collector, The connection of third NPN triode collector, 3rd resistor one end connect with anode, and the of the 3rd resistor other end and potentiometer One end connection, the second end of potentiometer are connect with battery cathode, and potentiometer sliding end is connect with the first breakdown pipe cathode, and first hits Poling anode is connect with third NPN transistor base, and third NPN triode emitter is connect with battery cathode.
2. being used for the automatic charger of mobile phone as described in claim 1, it is characterised in that: self-charging road further includes the second breakdown Pipe, the second breakdown pipe cathode are connect with 3 foot of load cell, the second breakdown pipe plus earth.
3. being used for the automatic charger of mobile phone as described in claim 1, it is characterised in that: the model ZA- of load cell 1N。
4. being used for the automatic charger of mobile phone as described in claim 1, it is characterised in that: self-charging road further includes the 7th resistance And second luminous tube, the second luminous tube anode are connect with third NPN triode collector, the second luminous tube cathode passes through the 7th electricity Resistance is connect with battery cathode.
CN201822007355.XU 2018-12-03 2018-12-03 A kind of automatic charger for mobile phone Active CN209200737U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822007355.XU CN209200737U (en) 2018-12-03 2018-12-03 A kind of automatic charger for mobile phone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822007355.XU CN209200737U (en) 2018-12-03 2018-12-03 A kind of automatic charger for mobile phone

Publications (1)

Publication Number Publication Date
CN209200737U true CN209200737U (en) 2019-08-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822007355.XU Active CN209200737U (en) 2018-12-03 2018-12-03 A kind of automatic charger for mobile phone

Country Status (1)

Country Link
CN (1) CN209200737U (en)

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