CN205283217U - Rapid charger - Google Patents
Rapid charger Download PDFInfo
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- CN205283217U CN205283217U CN201620037179.2U CN201620037179U CN205283217U CN 205283217 U CN205283217 U CN 205283217U CN 201620037179 U CN201620037179 U CN 201620037179U CN 205283217 U CN205283217 U CN 205283217U
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Abstract
The utility model discloses a rapid charger, including charge input, controller, fill electrical output, the input that charges is connected with the input of controller, the output of controller with fill electrical output and be connected, the controller integration has a DC -DC boost circuit and a control chip U1. The input that charges sends the control chip U1 of voltage signal to the controller in, and a control chip U1 receives and to support the high pressure signal that charges, and a control chip U1 sends signal to the DC -DC boost circuit that steps up, and the voltage signal after DC -DC boost circuit sends and steps up is to filling electrical output. When filling electrical output after in contact with the cell -phone, if cell -phone support high pressure charges, then the hvdcp in cellphone subscriber space ( high voltage direct current charges) process will start, and a control chip U1 sends signal to the DC -DC boost circuit that steps up, through boost circuit steps up after, and charger output HIGH voltage, the quick charge of realization high voltage.
Description
Technical field
The utility model relates to charge prepd, in particular to a kind of quick charger.
Background technology
It is the topic that current whole industry is discussed warmly that high pass QuickCharge2.0 fills technology (calling QC2.0 in the following text) soon. Before this, filling soon and can only be reached by the mode of motor current, but the 5V/2A (10W) that MicroUSB (micro USB) can bear has arrived stagnation point, electric current increases MicroUSB fraction defective certainly will be caused double. At this moment, under the prerequisite not changing MicroUSB interface, the QC2.0 quick charger of high-voltage is subject to rapidly human consumer's heat and holds in both hands.
Now commercially there is a large amount of generic USB chargers, they do not have high-voltage QC2.0 quick-charge function. And existing QC2.0 fills the boost-up circuit in technology soon and identify circuit is independent, this makes the volume of quick charger cannot accomplish less.
Practical novel content
According to an aspect of the present utility model, provide a kind of quick charger, comprise charging input end, controller, charging output terminal, charging input end is connected with the input terminus of controller, the output terminal of controller is connected with charging output terminal, and controller is integrated with DC-DC booster circuit and the first control chip U1. Charging input end sends voltage signal to the first control chip U1 in controller, first control chip U1 receives and can support high-voltage charging signal, first control chip U1 sends boost signal to DC-DC booster circuit, and DC-DC booster circuit sends the voltage signal after boosting to the output terminal that charges.
After charging output terminal connects mobile phone by data line, the acquiescence charger type of charger is DCP (special charging port pattern), and now output voltage is 5V, and mobile phone normally charges. If QC2.0 fast charge protocol supported by mobile phone, then hvdcp (high voltage direct current charging) process in cellphone subscriber space will start, just feed back one and can support that the signal to the first of high-voltage charging controls chip U1, after first control chip U1 receives signal, send boost signal to DC-DC booster circuit, after boost-up circuit boosts, charger exports high-voltage, it is achieved high-voltage rapid charge.
In some embodiments, the first control chip U1 is integrated with identify circuit, and identify circuit identification high-voltage charge signal also sends relevant voltage signal to the first control chip U1. Thus, it is possible to by identify circuit identification mobile phone feedback the maximum charging voltage born, and then control DC-DC booster circuit export corresponding high-voltage, prevent mobile phone because overvoltage charging and damage. Meanwhile, DC-DC booster circuit and identify circuit are integrated in controller, can reduce the volume of charger.
In some embodiments, DC-DC booster circuit comprises the first Capacitance parallel connection circuit, the 2nd Capacitance parallel connection circuit, the 3rd capacitor and inductor shunt circuit, one end of first Capacitance parallel connection circuit is connected with charging input end and the first control chip U1, one end of 2nd Capacitance parallel connection circuit is connected with the first control chip U1, one end of 3rd capacitor and inductor shunt circuit is connected with the first control chip U1, the other end ground connection of the first Capacitance parallel connection circuit, the 2nd Capacitance parallel connection circuit, the 3rd capacitor and inductor shunt circuit. First control chip U1 sends energy storage signal to the 3rd capacitor and inductor shunt circuit, first control chip U1 sends the first boost signal to the first Capacitance parallel connection circuit, first control chip U1 sends the 2nd boost signal to the 2nd Capacitance parallel connection circuit, and the 3rd capacitor and inductor shunt circuit is to the first Capacitance parallel connection circuit and the 2nd Capacitance parallel connection circuit release electric energy. Thus, by the boosted switch of the first control chip U1, control the 3rd capacitor and inductor shunt circuit storage power, then being stored in the first Capacitance parallel connection circuit in the form of a voltage, it is achieved first class boost, last energy is stored in the 2nd Capacitance parallel connection circuit again, realize two grades of boostings, after multiple switch periods so that output voltage raises, it is achieved high-voltage high-speed charges.
In some embodiments, quick charger also comprises indicating meter, and indicating meter is connected with charging input end and charging output terminal respectively, receives charging input end and the voltage signal of charging output terminal. Thus, in the process of charging, can display translation voltage directly perceived, it is to increase security.
In some embodiments, quick charger also comprises voltage-stabilizing controller, voltage-stabilizing controller is connected with charging input end and charging output terminal respectively, receives the voltage signal of charging input end (1), and the voltage signal after send voltage stabilizing is to the output terminal that charges. Thus, through the adjustment of voltage-stabilizing controller, charger can the voltage of stable output, reduce the heating because voltage fluctuation causes.
In some embodiments, voltage-stabilizing controller comprises voltage stabilizing circuit, the 2nd control chip 2U1 and voltage sample circuit, voltage stabilizing circuit two ends are connected with charging input end and the 2nd control chip 2U1 respectively, voltage sample circuit two ends are connected with charging output terminal and the 2nd control chip 2U1 respectively, and the 2nd control chip 2U1 sends voltage signal to indicating meter. Voltage sample circuit receives the charging voltage signal of charging output terminal, voltage sample circuit sends voltage signal to the 2nd control chip 2U1,2nd control chip 2U1 sends voltage regulation signal to voltage stabilizing circuit, voltage stabilizing circuit sends stabilized voltage to the 2nd control chip 2U1, and the 2nd control chip 2U1 sends voltage signal to indicating meter and charging output terminal. Thus, voltage sample circuit, to voltage sampling, sends sampling voltage signal to the 2nd control chip 2U1; voltage regulation signal is sent to voltage stabilizing circuit after the 2nd control chip 2U1 processes; voltage stabilizing circuit to the voltage in circuit except making an uproar, stabilized voltage, it is achieved overcurrent with short circuit protection. 2nd control chip 2U1 sends voltage signal to indicating meter, real-time display translation voltage, conveniently process of charging is monitored.
Accompanying drawing explanation
Fig. 1 is a kind of structure functional diagram implementing mode of the present utility model;
Fig. 2 is the structure functional diagram that another kind of the present utility model implements mode;
Fig. 3 is another structure functional diagram implementing mode of the present utility model;
Fig. 4 is another structure functional diagram implementing mode of the present utility model;
Fig. 5 is the schematic circuit diagram of the quick charger shown in Fig. 1,2;
Fig. 6 is the schematic circuit diagram of the quick charger shown in Fig. 3,4.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the quick charger of the utility model embodiment comprises charging input end 1, controller 2 and charging output terminal 3, and one end of controller 2 is connected with charging input end 1, and the other end is connected with charging output terminal 3. wherein, controller 2 is integrated with DC-DC booster circuit 21 and the first control chip U1, in use, quick charger is connected power unit by charging input end 1, receiver voltage signal also exports controller 2 to, after controller 2 receives voltage signal, first signal processing is carried out through the first control chip U1, after first control chip U1 receives the high-voltage charging the supported signal that peripheral equipment feedback is come, export boost signal to boost-up circuit, charging output terminal is exported to after being boosted by voltage signal by boost-up circuit, peripheral equipment (such as mobile phone) is exported to by charging output terminal, so that peripheral equipment is charged.
Wherein, in the present embodiment, charging input end 1 is USBA male charging input end, the output terminal 3 that charges is USBA female charging output terminal, to improve the versatility of charger. If high-voltage charging supported by mobile phone, the first control chip U1 sends boost signal to DC-DC booster circuit 21, and DC-DC booster circuit 21 exports high-voltage by USBA female charging output terminal after boosting, it is achieved high-voltage quick-charge function.
As shown in Figure 2; first control chip U1 is integrated with identify circuit; identify circuit can identify the maximum charging voltage that mobile phone can bear; first control chip U1 controls DC-DC booster circuit after receiving maximum charging voltage and exports corresponding high pressure; prevent the excessive heating that mobile phone brings because of overvoltage charging, it is achieved overcurrent protection.
As shown in Figure 5, DC-DC booster circuit 21 comprises the first electric capacity C1, the 2nd electric capacity C2, the 6th electric capacity C6, the 7th electric capacity C7, the 8th electric capacity C8, the 9th electric capacity C9, the tenth electric capacity C10, the first inductance L 1. One end of the first Capacitance parallel connection circuit of composition and the 1 of charging input end after 2nd electric capacity C2 and the tenth electric capacity C10 parallel connection#Pin and first controls the 4 of chip U1#Pin connects, the other end ground connection. One end of 2nd Capacitance parallel connection circuit of composition and the 1 of the first control chip U1 after 6th electric capacity C6, the 7th electric capacity C7, the 8th electric capacity C8 parallel connection#Pin is connected, the other end ground connection. First electric capacity C1, the first inductance L 1 compose in parallel the 3rd capacitor and inductor shunt circuit with the 9th electric capacity C9 after connecting, and the two ends of the 3rd capacitor and inductor shunt circuit control the 8 of chip U1 with first respectively#Pin connects, and the chip the other end is connected and ground connection with the GND pin of the first control chip U1. The DC-DC booster circuit that above structure is formed jointly. By the boosted switch of the first control chip U1, control capacitance inductance stores and the energy of release, after multiple switch periods so that output voltage raises, it is achieved high-voltage rapid charge.
As shown in Figure 5, the 1 of USBA female charging output terminal#Pin and first controls the 1 of chip U1#Pin connects, the 2 of USBA female charging output terminal#Pin and first controls the 7 of chip U1#Pin D-connects, the 3 of USBA female charging output terminal#Pin and first controls the 6 of chip U1#Pin D+ connects, the 4 of USBA female charging output terminal#Pin ground connection. They form identify circuit 22 and output circuit jointly. By the first control chip U1 by integrated to DC-DC booster circuit 21 and identify circuit 22, reduce the volume of charger.
When output terminal inserts the fast charging mobile phone of QC2.0, mobile phone carries out communication by the upper on load voltage of two lines (D+, D-) in the middle of MicroUSB interface, regulates the output voltage of QC2.0. Concrete principle process is as follows:
When being connected on mobile phone by data line by charging output terminal, charger is given tacit consent to D+ and D-short circuit, and now mobile phone terminal detection charger type is DCP, the 5V voltage charging of mobile phone to give tacit consent to, and then process is as follows:
1) if mobile phone terminal supports fast charge protocol, the hvdcp process in user space starts, and loads the voltage of 0.325V on D+;
2) charger detects that on D+, voltage .0325V maintenance has exceeded 1.25s, just disconnects the short circuit of D+ and D-, owing to D+ and D-disconnects, changes so the voltage on D-no longer follows the voltage .0325 on D+, now starts decline;
3) mobile phone terminal detect the voltage on D-decline from .0325 maintain more than 1ms time, the value of hvdcp reading/sys/class/power_supply/usb/voltage_max, if 9000000mV, the voltage with regard to arranging on D+ is the voltage on 3.3V, D-is 0.6V;
4), after charger detects the voltage on D+ and D-, just adjustment charger output voltage is to 9V.
In above step 3) with step 4) in, if step 3) in the value that reads be 5000000mV, just to arrange D+ be 0.6V, D-is 0V, step 4) in charger export 5V voltage; If step 3) in the value that reads be 12000000mV, just to arrange D+ be 0.6V, D-is 0.6V, step 4) in export 12V voltage.
Supporting that the charger that QC2.0 fills soon adjusts the output voltage of self according to the magnitude of voltage that mobile phone terminal loads on D+, D-, its corresponding relation is as shown in table 1:
Table 1
As shown in Fig. 3,6, quick charger also comprises indicating meter 4, and the two ends of indicating meter 4 are connected with USBA male charging input end and USBA female charging output terminal respectively. Thus, in the process of charging, can intuitively show charging voltage, it is to increase security. In the present embodiment, indicating meter 4 is liquid-crystal display. Any display can be adopted in other embodiments.
As shown in Figure 4, charger also comprises voltage-stabilizing controller 5, and voltage-stabilizing controller 5 two ends are connected with charging input end and charging output terminal respectively. Voltage-stabilizing controller 5 can collect output voltage, confirms whether output voltage is stablized, and then the voltage in stabilizing circuit, it is achieved voltage stabilizing, overcurrent and short circuit protection.
Voltage-stabilizing controller comprises voltage stabilizing circuit and voltage sample circuit, voltage stabilizing circuit two ends are connected with USBA male input terminus and the 2nd control chip 2U1 respectively, voltage sample circuit two ends are connected with USBA female charging output terminal and the 2nd control chip 2U1 respectively, voltage sample circuit is to sending voltage signal after voltage sampling to the 2nd control chip 2U1, 2nd control chip 2U1 analytical voltage situation, if spread of voltage, then send stabilized voltage signal to voltage stabilizing circuit, circuit voltage is adjusted by voltage stabilizing circuit device, stabilized voltage, play voltage stabilizing, the function that overcurrent is protected with short circuit. meanwhile, the 2nd control chip 2U1 collects real-time voltage, is shown by indicating meter 4, can to voltage Real-Time Monitoring.
In the present embodiment, voltage stabilizing circuit is low pressure difference linear voltage regulator (LDO), can improve the susceptibility of circuit voltage stabilizing like this. In figure 6, the 2 of the 2nd control chip 2U1#��3#��6#��7#��8#��9#��11#��12#��13#��14#Pin connects with each pin of liquid crystal display respectively, forms liquid crystal display circuit, display charging voltage.
Above-described is enforcement modes more of the present utility model. For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, some distortion and the improvement made all belong to protection domain of the present utility model.
Claims (6)
1. a quick charger, it is characterized in that, comprise charging input end (1), controller (2), charging output terminal (3), described charging input end (1) is connected with one end of controller (2), the other end of described controller (2) is connected with charging output terminal (3), described controller (2) is integrated with DC-DC booster circuit (21) and the first control chip U1, described charging input end (1) sends voltage signal to the first control chip U1 in controller (2), described first control chip U1 receives and can support high-voltage charging signal, described first control chip U1 sends boost signal to DC-DC booster circuit (21), described DC-DC booster circuit (21) sends the voltage signal after boosting to the output terminal that charges (3).
2. quick charger according to claim 1, it is characterized in that, described first control chip U1 is integrated with identify circuit (22), and described identify circuit (22) identifies high-voltage charge signal and sends relevant voltage signal to the first control chip U1.
3. quick charger according to claim 2, it is characterised in that, described DC-DC booster circuit (21) comprises the first Capacitance parallel connection circuit, the 2nd Capacitance parallel connection circuit and the 3rd capacitor and inductor shunt circuit,
One end of described first Capacitance parallel connection circuit is connected with charging input end and the first control chip U1,
One end of described 2nd Capacitance parallel connection circuit is connected with the first control chip U1,
One end of described 3rd capacitor and inductor shunt circuit is connected with the first control chip U1,
The other end ground connection of described first Capacitance parallel connection circuit, the 2nd Capacitance parallel connection circuit, the 3rd capacitor and inductor shunt circuit,
Described first control chip U1 sends energy storage signal to the 3rd capacitor and inductor shunt circuit, described first control chip U1 sends the first boost signal to the first Capacitance parallel connection circuit, described first control chip U1 sends the 2nd boost signal to the 2nd Capacitance parallel connection circuit, and described 3rd capacitor and inductor shunt circuit is to the first Capacitance parallel connection circuit and the 2nd Capacitance parallel connection circuit release electric energy.
4. quick charger according to claim 1, it is characterized in that, also comprise indicating meter (4), described indicating meter (4) is connected with described charging input end (1) and charging output terminal (3) respectively, receives charging input end (1) and the voltage signal of charging output terminal (3).
5. quick charger according to claim 4, it is characterized in that, also comprise voltage-stabilizing controller (5), described voltage-stabilizing controller (5) is connected with charging input end and charging output terminal respectively, receiving the voltage signal of charging input end (1), the voltage signal after send voltage stabilizing is to the output terminal that charges (3).
6. quick charger according to claim 5, described voltage-stabilizing controller (5) comprises voltage stabilizing circuit, 2nd control chip 2U1 and voltage sample circuit, described voltage stabilizing circuit two ends are connected with charging input end (1) and the 2nd control chip 2U1 respectively, described voltage sample circuit two ends are connected with charging output terminal (3) and the 2nd control chip 2U1 respectively, described voltage sample circuit receives the charging voltage signal of charging output terminal, described voltage sample circuit sends voltage signal to the 2nd control chip 2U1, described 2nd control chip 2U1 sends voltage regulation signal to voltage stabilizing circuit, described voltage stabilizing circuit sends stabilized voltage to the 2nd control chip 2U1, described 2nd control chip 2U1 sends voltage signal to indicating meter (4) and charging output terminal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037179.2U CN205283217U (en) | 2016-01-14 | 2016-01-14 | Rapid charger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037179.2U CN205283217U (en) | 2016-01-14 | 2016-01-14 | Rapid charger |
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| CN205283217U true CN205283217U (en) | 2016-06-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451685A (en) * | 2016-12-09 | 2017-02-22 | 重庆理工大学 | Mobile phone non-contact fast charge system |
| WO2018040170A1 (en) * | 2016-08-31 | 2018-03-08 | 宇龙计算机通信科技(深圳)有限公司 | Charging method and apparatus |
| WO2018040173A1 (en) * | 2016-08-30 | 2018-03-08 | 宇龙计算机通信科技(深圳)有限公司 | Quick charging identification method and terminal device |
-
2016
- 2016-01-14 CN CN201620037179.2U patent/CN205283217U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040173A1 (en) * | 2016-08-30 | 2018-03-08 | 宇龙计算机通信科技(深圳)有限公司 | Quick charging identification method and terminal device |
| WO2018040170A1 (en) * | 2016-08-31 | 2018-03-08 | 宇龙计算机通信科技(深圳)有限公司 | Charging method and apparatus |
| CN106451685A (en) * | 2016-12-09 | 2017-02-22 | 重庆理工大学 | Mobile phone non-contact fast charge system |
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