CN218449578U - Portable power source quick charge circuit - Google Patents
Portable power source quick charge circuit Download PDFInfo
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- CN218449578U CN218449578U CN202222774522.XU CN202222774522U CN218449578U CN 218449578 U CN218449578 U CN 218449578U CN 202222774522 U CN202222774522 U CN 202222774522U CN 218449578 U CN218449578 U CN 218449578U
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Abstract
The utility model discloses a portable power source quick charge circuit, this portable power source quick charge circuit includes: the commercial power supply module is used for introducing 220V alternating current; the voltage reduction, rectification and filtering module is used for converting 220V alternating current into direct current and outputting the direct current to the constant current charging module and the constant voltage charging module; the constant voltage charging module is used for supplying constant voltage to charge the battery; the constant current charging module is used for supplying constant current to charge the battery; the battery module is used for storing electric energy and outputting the electric energy; the mode switching module is used for controlling the constant voltage charging module or the constant current charging module to work according to the voltage of the battery; the utility model discloses when battery power is low, through constant voltage charging module to its quick charge, when battery power is higher, constant voltage charging is comparatively slow at this moment, and battery charging is accelerated through constant current charging module, guarantees that battery quick charge accomplishes.
Description
Technical Field
The utility model relates to a voltage supply field specifically is a portable power source quick charge circuit.
Background
The portable power source is a portable charger which can be carried about by a person, can store electric energy, is mainly used for charging consumer electronic products (such as wireless telephones and notebook computers) such as handheld mobile equipment and the like, and is particularly applied to occasions without external power supply. Most mobile power supplies have a charger to charge the internal battery.
The conventional mobile power supply is always charged at a constant voltage, the later charging speed of a battery is low, the charging time is long, the charging cannot be completed quickly, and improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable power source quick charge circuit to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a mobile power supply fast charging circuit, comprising:
the commercial power supply module is used for introducing 220V alternating current;
the voltage reduction, rectification and filtering module is used for converting 220V alternating current into direct current and outputting the direct current to the constant current charging module and the constant voltage charging module;
the constant voltage charging module is used for supplying constant voltage to charge the battery;
the constant current charging module is used for supplying constant current to charge the battery;
the battery module is used for storing electric energy and outputting the electric energy;
the mode switching module is used for controlling the constant voltage charging module or the constant current charging module to work according to the voltage of the battery;
the commercial power supply module is connected with the voltage-reducing rectifying and filtering module, the voltage-reducing rectifying and filtering module is connected with the constant-voltage charging module and the constant-current charging module, the constant-voltage charging module is connected with the battery module, the constant-current charging module is connected with the battery module, the battery module is connected with the mode switching module, and the mode switching module is connected with the constant-voltage charging module and the constant-current charging module.
As a further aspect of the present invention: constant voltage charging module includes electric capacity C3, stabiliser U1, resistance R1, potentiometre RP1, switch S12, switch S11, diode D1, electric capacity C3 ' S one end is connected to stabiliser U1 ' S input, step-down rectification filter module, electric capacity C3 ' S other end ground connection, stabiliser U1 ' S earthing terminal connecting resistance R1 ' S one end, switch S12 ' S the other end passes through potentiometre RP1 ground connection, stabiliser U1 ' S the other end of output connecting resistance R1, switch S11 ' S one end, diode D1 ' S positive pole is connected to switch S11 ' S the other end, battery module is connected to diode D1 ' S negative pole.
As a further aspect of the present invention: the constant current charging module comprises a voltage stabilizer U1, a capacitor C3, an MOS tube V1, an MOS tube V2, a diode D2, a resistor R2, a potentiometer RP2, one end of the capacitor C3 is connected to the input end of the voltage stabilizer U1, a voltage reduction rectification filtering module, the other end of the capacitor C3 is grounded, the D pole of the MOS tube V1 is connected to the grounding end of the voltage stabilizer U1, one end of the potentiometer RP2 is connected to the S pole of the MOS tube V1, a battery module, one end of the resistor R2 is connected to the other end of the potentiometer RP2, the negative pole of the diode D2 is connected to the other end of the resistor R2, the S pole of the MOS tube V2 is connected to the positive pole of the diode D2, the output end of the voltage stabilizer U1 is connected to the D pole of the MOS tube V2, the G pole of the MOS tube V2 is connected to the G pole of the MOS tube V1, and a mode switching module.
As a further aspect of the present invention: the battery module comprises a diode D3 and a battery E1, the anode of the diode D3 is connected with the constant voltage charging module and the constant current charging module, the cathode of the diode D3 is connected with the mode switching module and the anode of the battery E1, and the cathode of the battery E1 is grounded.
As the utility model discloses further scheme again: the mode switching module comprises a diode D4, a resistor R3, a silicon controlled rectifier Z1, a relay J1, a diode D5, the positive pole of the silicon controlled rectifier Z1 is connected to the negative pole of the diode D4, a battery module, the control pole of the silicon controlled rectifier Z1 is connected to the positive pole of the diode D4, one end of the resistor R3 is grounded, one end of the relay J1 is connected to the negative pole of the silicon controlled rectifier Z1, the negative pole of the diode D5, the G pole of an MOS tube V1, the G pole of an MOS tube V2, the other end of the relay J1 is grounded, and the positive pole of the diode D5 is grounded.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when battery power is low, through constant voltage charging module to its quick charge, when battery power is higher, constant voltage charging is comparatively slow at this moment, and battery charging is accelerated through constant current charging module, guarantees that battery quick charge accomplishes.
Drawings
Fig. 1 is a schematic diagram of a fast charging circuit of a mobile power supply.
Fig. 2 is a circuit diagram of a fast charging circuit of a mobile power supply.
Fig. 3 is a circuit diagram of the buck rectifying filter module.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1, a fast charging circuit of a mobile power supply includes:
the commercial power supply module is used for introducing 220V alternating current;
the voltage reduction, rectification and filtering module is used for converting 220V alternating current into direct current and outputting the direct current to the constant current charging module and the constant voltage charging module;
the constant voltage charging module is used for supplying constant voltage to charge the battery;
the constant current charging module is used for supplying constant current to charge the battery;
the battery module is used for storing electric energy and outputting the electric energy;
the mode switching module is used for controlling the constant voltage charging module or the constant current charging module to work according to the voltage of the battery;
the mains supply module is connected with the voltage-reducing rectifying and filtering module, the voltage-reducing rectifying and filtering module is connected with the constant voltage charging module and the constant current charging module, the constant voltage charging module is connected with the battery module, the constant current charging module is connected with the battery module, the battery module is connected with the mode switching module, and the mode switching module is connected with the constant voltage charging module and the constant current charging module.
In a specific embodiment: referring to fig. 3, the commercial power supply module introduces 220V alternating current through the two-hole plug, the voltage reduction rectification filter module reduces the voltage of the 220V alternating current to low-voltage alternating current through the transformer W, the rectifier T converts the alternating current to direct current, and the filter circuit (the capacitor C1, the capacitor C2, and the inductor L1) completes the filtering processing.
In this embodiment: referring to fig. 2, the constant voltage charging module includes a capacitor C3, a voltage stabilizer U1, a resistor R1, a potentiometer RP1, a switch S12, a switch S11, and a diode D1, an input end of the voltage stabilizer U1 is connected to one end of the capacitor C3, the voltage reduction rectification filter module, the other end of the capacitor C3 is grounded, a ground terminal of the voltage stabilizer U1 is connected to one end of the resistor R1 and one end of the switch S12, the other end of the switch S12 is grounded through the potentiometer RP1, an output end of the voltage stabilizer U1 is connected to the other end of the resistor R1 and one end of the switch S11, the other end of the switch S11 is connected to an anode of the diode D1, and a cathode of the diode D1 is connected to the battery module.
When the battery starts to charge, the voltage is low, at this time, the switch S11 and the switch S12 are closed, the MOS tubes V1 and V2 are cut off, the voltage stabilizer U1 supplies constant voltage for the battery module through the light emitting diode D1 for charging, and the voltage supply is changed by adjusting the resistance value of the potentiometer RP 1.
In this embodiment: referring to fig. 2, the constant current charging module includes a voltage regulator U1, a capacitor C3, an MOS transistor V1, an MOS transistor V2, a diode D2, a resistor R2, a potentiometer RP2, an input terminal of the voltage regulator U1 is connected to one end of the capacitor C3, a step-down rectification filtering module, the other end of the capacitor C3 is grounded, a ground terminal of the voltage regulator U1 is connected to a D pole of the MOS transistor V1, an S pole of the MOS transistor V1 is connected to one end of the potentiometer RP2, a battery module, the other end of the potentiometer RP2 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to a cathode of the diode D2, an anode of the diode D2 is connected to the S pole of the MOS transistor V2, a D pole of the MOS transistor V2 is connected to an output terminal of the voltage regulator U1, a G pole of the MOS transistor V1 is connected to a G pole of the MOS transistor V2, and a mode switching module.
When the battery voltage reaches 80% (taking 80% as an example here), the voltage difference between the output voltage of the voltage stabilizer U1 and the battery E1 is small, the charging is slow, at this time, the switch S11 and the switch S12 are bounced off, the MOS tubes V1 and V2 are conducted, the voltage between the grounding end and the output end of the voltage stabilizer U1 is constant, therefore, the voltages on the MOS tubes V1 and V2, the diode D2, the resistor R2 and the potentiometer RP2 are constant, and because the resistance value is constant, the output current is constant, and the constant current power supply is performed on the battery E1, so that the battery E1 is charged quickly.
In this embodiment: referring to fig. 2, the battery module includes a diode D3 and a battery E1, an anode of the diode D3 is connected to the constant voltage charging module and the constant current charging module, a cathode of the diode D3 is connected to the mode switching module and an anode of the battery E1, and a cathode of the battery E1 is grounded.
Diode D3 is used to prevent battery E1 from supplying power in reverse when the circuit fails.
In this embodiment: referring to fig. 2, the mode switching module includes a diode D4, a resistor R3, a thyristor Z1, a relay J1, and a diode D5, a cathode of the diode D4 is connected to an anode of the thyristor Z1, the battery module, an anode of the diode D4 is connected to a control electrode of the thyristor Z1, and one end of the resistor R3, and the other end of the resistor R3 is grounded, a cathode of the thyristor Z1 is connected to one end of the relay J1, a cathode of the diode D5, a G electrode of the MOS transistor V1, and a G electrode of the MOS transistor V2, and the other end of the relay J1 is grounded, and an anode of the diode D5 is grounded.
When battery E1 voltage reached 80%, zener diode D4 switched on, and silicon controlled rectifier Z1 switched on, and then relay J1 gets electric work, and control switch S11, S12 bounce open, and the G that is MOS pipe V1, V2 through silicon controlled rectifier Z1 simultaneously extremely supplies with the high level, and MOS pipe V1, V2 switch on.
The utility model discloses a theory of operation is: the commercial power supply module introduces 220V alternating current, the voltage reduction rectification filtering module converts the 220V alternating current into direct current and outputs the direct current to the constant current charging module and the constant voltage charging module, the constant voltage charging module supplies constant voltage to charge the battery, the constant current charging module supplies constant current to charge the battery, the battery module stores electric energy and outputs the electric energy, and the mode switching module controls the constant voltage charging module or the constant current charging module to work according to the voltage of the battery.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a portable power source quick charge circuit which characterized in that:
this portable power source quick charge circuit includes:
the commercial power supply module is used for introducing 220V alternating current;
the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current and outputting the direct current to the constant current charging module and the constant voltage charging module;
the constant voltage charging module is used for supplying constant voltage to charge the battery;
the constant current charging module is used for supplying constant current to charge the battery;
the battery module is used for storing electric energy and outputting the electric energy;
the mode switching module is used for controlling the constant voltage charging module or the constant current charging module to work according to the voltage of the battery;
the commercial power supply module is connected with the voltage-reducing rectifying and filtering module, the voltage-reducing rectifying and filtering module is connected with the constant-voltage charging module and the constant-current charging module, the constant-voltage charging module is connected with the battery module, the constant-current charging module is connected with the battery module, the battery module is connected with the mode switching module, and the mode switching module is connected with the constant-voltage charging module and the constant-current charging module.
2. The mobile power supply quick charging circuit according to claim 1, wherein the constant voltage charging module comprises a capacitor C3, a regulator U1, a resistor R1, a potentiometer RP1, a switch S12, a switch S11, and a diode D1, an input end of the regulator U1 is connected to one end of the capacitor C3, and the step-down rectification filter module, the other end of the capacitor C3 is grounded, a ground end of the regulator U1 is connected to one end of the resistor R1 and one end of the switch S12, the other end of the switch S12 is grounded through the potentiometer RP1, an output end of the regulator U1 is connected to the other end of the resistor R1 and one end of the switch S11, the other end of the switch S11 is connected to an anode of the diode D1, and a cathode of the diode D1 is connected to the battery module.
3. The mobile power supply quick charging circuit according to claim 1, wherein the constant current charging module comprises a voltage stabilizer U1, a capacitor C3, a MOS transistor V1, a MOS transistor V2, a diode D2, a resistor R2, and a potentiometer RP2, an input end of the voltage stabilizer U1 is connected to one end of the capacitor C3, the voltage reduction rectification filter module, the other end of the capacitor C3 is grounded, a ground end of the voltage stabilizer U1 is connected to a D pole of the MOS transistor V1, an S pole of the MOS transistor V1 is connected to one end of the potentiometer RP2, the battery module, the other end of the potentiometer RP2 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to a negative pole of the diode D2, an anode of the diode D2 is connected to an S pole of the MOS transistor V2, the D pole of the MOS transistor V2 is connected to an output end of the voltage stabilizer U1, and a G pole of the MOS transistor V1 is connected to a G pole of the MOS transistor V2, and the mode switching module.
4. The mobile power supply quick charging circuit according to claim 1, wherein the battery module comprises a diode D3 and a battery E1, an anode of the diode D3 is connected to the constant voltage charging module and the constant current charging module, a cathode of the diode D3 is connected to the mode switching module and an anode of the battery E1, and a cathode of the battery E1 is grounded.
5. The mobile power supply quick charging circuit according to claim 3, wherein the mode switching module comprises a diode D4, a resistor R3, a thyristor Z1, a relay J1 and a diode D5, a cathode of the diode D4 is connected with an anode of the thyristor Z1 and the battery module, an anode of the diode D4 is connected with a control electrode of the thyristor Z1 and one end of the resistor R3, the other end of the resistor R3 is grounded, a cathode of the thyristor Z1 is connected with one end of the relay J1, a cathode of the diode D5, a G electrode of the MOS tube V1 and a G electrode of the MOS tube V2, the other end of the relay J1 is grounded, and an anode of the diode D5 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222774522.XU CN218449578U (en) | 2022-10-20 | 2022-10-20 | Portable power source quick charge circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222774522.XU CN218449578U (en) | 2022-10-20 | 2022-10-20 | Portable power source quick charge circuit |
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| CN218449578U true CN218449578U (en) | 2023-02-03 |
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| CN202222774522.XU Active CN218449578U (en) | 2022-10-20 | 2022-10-20 | Portable power source quick charge circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115800476A (en) * | 2023-02-13 | 2023-03-14 | 深圳前海云充科技有限公司 | Battery stage type charging circuit |
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2022
- 2022-10-20 CN CN202222774522.XU patent/CN218449578U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115800476A (en) * | 2023-02-13 | 2023-03-14 | 深圳前海云充科技有限公司 | Battery stage type charging circuit |
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