CN205753578U - The USB quick charger of multiple-channel output - Google Patents
The USB quick charger of multiple-channel output Download PDFInfo
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- CN205753578U CN205753578U CN201521124695.0U CN201521124695U CN205753578U CN 205753578 U CN205753578 U CN 205753578U CN 201521124695 U CN201521124695 U CN 201521124695U CN 205753578 U CN205753578 U CN 205753578U
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- circuit
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- channel output
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Abstract
This utility model relates to USB charger, particularly relates to the USB quick charger of multiple-channel output.The USB quick charger of multiple-channel output is provided, this charger includes the transforming circuit for mains supply is transformed into low-tension supply, also include the low-voltage output power taking from described transforming circuit of at least two-way and export charging voltage fill management circuit soon, each management circuit that fills soon connects a USB interface, the described management circuit that fills soon includes controlling circuit of voltage regulation, described controlling circuit of voltage regulation regulates voluntarily according to the feedback of its outfan, thus export burning voltage to USB interface, therefore, this technology can be realized as multiple-channel output only by a road transforming circuit, achieve multiple-channel output the most at a lower cost.
Description
Technical field
This utility model relates to USB charger, particularly relates to the USB quick charger of multiple-channel output.
Background technology
At present, along with the extensive application of digital product, its supporting charger kind also emerges in an endless stream, and USB charger typically all uses conversion switch (transforming circuit) to carry out transformation.At present, the change-over circuit of USB charger is typically all and arranges its output voltage and output electric current according to the needs of single electronic product, and therefore, the charger of only one of which change-over circuit is the most just only a kind of electronic product charging, also only one of which output.If charger to realize wanting multiple-channel output adaptive multiple different electronic product, then needing have variable connector change-over circuit, this can increase the production cost of charger, and the utilization rate of its circuit also ratio is relatively low.
Summary of the invention
The purpose of this utility model is to provide the USB quick charger of a kind of multiple-channel output.
This utility model is achieved through the following technical solutions:
The USB quick charger of a kind of multiple-channel output is provided, it is characterized in that, including the transforming circuit for mains supply being transformed into low-tension supply, also include the low-voltage output power taking from described transforming circuit of at least two-way and export charging voltage fill management circuit soon, each management circuit that fills soon connects a USB interface, the described management circuit that fills soon includes that controlling circuit of voltage regulation, described controlling circuit of voltage regulation regulate voluntarily according to the feedback of its outfan, thus exports burning voltage to USB interface.
Wherein, EMI filter rectifier that described transforming circuit includes being sequentially connected with from input to load end, switch transformed circuit, synchronous rectification filter circuit, output voltage sampling circuit, this USB quick charger also includes that main control circuit, described main control circuit carry out output regulation signal to switch transformed circuit according to the sampled value of described output voltage sampling circuit.
Wherein, described filling soon manages controlling circuit of voltage regulation and the telecommunication circuit that circuit includes being sequentially connected with, and described controlling circuit of voltage regulation obtains the cell voltage of load by described telecommunication circuit, switches the charging voltage of its output with this.
Wherein, described telecommunication circuit includes being provided with the communication protocol device U5 of information terminal and being provided with the USB interface of data terminal, and described information terminal connects described data terminal, and described communication protocol device U5 obtains the magnitude of voltage of the battery of load by described information terminal.
Wherein, described communication protocol device U5 is CHY100 chip.
Wherein, described controlling circuit of voltage regulation includes PWM controller U4, described PWM controller is provided with Voltage Feedback terminal, output voltage terminals, and described Voltage Feedback terminal connects the voltage control terminal with communication protocol device U5, and described output voltage terminals connects the charging terminal of USB interface.
Wherein, described PWM controller U4 is ACT4533C chip.
Wherein, if detecting, when load end is zero load, described controlling circuit of voltage regulation exports the second charging voltage.
Have the beneficial effect that the USB quick charger that multiple-channel output is provided, this charger includes the transforming circuit for mains supply is transformed into low-tension supply, also include the low-voltage output power taking from described transforming circuit of at least two-way and export charging voltage fill management circuit soon, each management circuit that fills soon connects a USB interface, the described management circuit that fills soon includes controlling circuit of voltage regulation, described controlling circuit of voltage regulation regulates voluntarily according to the feedback of its outfan, thus export burning voltage to USB interface, therefore, this technology can be realized as multiple-channel output only by a road transforming circuit, achieve multiple-channel output the most at a lower cost.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is electrical block diagram of the present utility model.
Fig. 2 is EMI filter rectifier structural representation of the present utility model.
Fig. 3 is VCC power supply circuits of the present utility model, controlling circuit of voltage regulation and switch transformed circuit structural representation.
Fig. 4 is of the present utility model to fill management circuit structure schematic diagram soon.
Fig. 1 to Fig. 4 includes:
1 transforming circuit, 2 soon fill management circuit, 101--EMI filter rectifier, 102--switch transformed circuit, 103--synchronous rectification filter circuit, 104--output voltage sampling circuit, 105--low-voltage output circuit, 106--VCC power supply circuits, 107--quasi-resonance control circuit, 201 first controlling circuit of voltage regulation, 202 first telecommunication circuits, 203 second controlling circuit of voltage regulation, 204 second telecommunication circuits, 205 the 3rd controlling circuit of voltage regulation, 206 third communication circuit.
Detailed description of the invention
This utility model is automatically adjusted the detailed description of the invention of the USB quick charger of output voltage, as shown in Figure 1, for mains supply being transformed into the transforming circuit 1 of low-tension supply, it EMI filter rectifier 101 including being sequentially connected with from input to outfan, switch transformed circuit, synchronous rectification filter circuit 103, output voltage sampling circuit 104, low-voltage output circuit 105.Switch transformed circuit 102 includes quasi-resonance control circuit 107, it includes that quasi-resonance controls electrical equipment U1, switching tube Q1, the outfan U2B of Optical coupling resistance, the input of described quasi-resonance control circuit 107 connects primary side winding one polar end of the transformator T1-A in described switch transformed circuit 102, and the outfan of described quasi-resonance control circuit 107 connects another polar end of the primary side winding of described transformator T1-A through described switching tube Q1.Described switching tube Q1 is controlled and conduction and cut-off by described quasi resonant control U1, and U1 is ICE2QS03G chip.Described quasi resonant control U1 is also connected with the outfan U2B of Optical coupling resistance, for obtaining the voltage that described output voltage sampling circuit samples, thus controls the break-make of switching tube Q1.U1 is open-minded by the no-voltage realizing switching tube Q1, thus is effectively reduced current spike when opening, and reduces the EMI noise that when opening, current spike causes, improves the conversion efficiency of described switch transformed circuit.
VCC power supply circuits 106, including transformator T1-B, resistance R15, electric capacity C7, diode D3, the secondary power taking that the VCC power supply circuits 106 transformation from described switch transformed circuit 102 is changed, resistance R15 is formation rectifying and wave-filtering branch road in parallel with diode D3 after connecting with electric capacity C7, the voltage of transformator T1-B output, through rectifying and wave-filtering branch road out-put supply VCC, provides power supply VCC for integrated circuit.
Described filling soon manages controlling circuit of voltage regulation 201 and the telecommunication circuit 202 that circuit 2 includes being sequentially connected with, and described controlling circuit of voltage regulation 201 switches charging voltage by the magnitude of voltage of the battery that described telecommunication circuit 202 obtains load.Described telecommunication circuit 202 includes: be provided with the communication protocol device U5 of information terminal, voltage control terminal, and, it is provided with the USB interface of charging terminal and data terminal, described information terminal is connected with described data terminal, described communication protocol device U5 obtains the magnitude of voltage of the battery of load by described information terminal, and described communication protocol device U5 is CHY100 chip.Described controlling circuit of voltage regulation 201 is provided with PWM controller U4 of Voltage Feedback terminal, output voltage terminals, described Voltage Feedback terminal is connected with described voltage control terminal, described output voltage terminals is connected with described charging terminal, and described PWM controller U4 is ACT4533C chip.If the magnitude of voltage of the battery of load is less than certain certain value, the most described controlling circuit of voltage regulation 201 exports higher charging voltage；If the magnitude of voltage of the battery of load is more than certain certain value, the most described controlling circuit of voltage regulation 201 exports relatively low charging voltage；If time unloaded, the most described communication protocol device U5 resets, and described controlling circuit of voltage regulation 201 exports relatively low voltage.Such as, the described management circuit 2 that fills soon can export two kinds of voltages of 5V/9V, if described communication protocol device U5 detects that by the described data terminal of USB interface the magnitude of voltage of the battery of load is less than 4.2V, the described voltage control terminal of the most described communication protocol device U5 is sent to described PWM controller U4 by described Voltage Feedback terminal, and output voltage is adjusted to 9V by described output voltage terminals by described PWM controller U4.If described communication protocol device U5 detects that by the described data terminal of USB interface the magnitude of voltage of the battery of load is higher than 4.2V, the described voltage control terminal of the most described communication protocol device U5 is sent to described PWM controller U4 by described Voltage Feedback terminal, and output voltage is adjusted to 5V by described output voltage terminals by described PWM controller U4.If load is removed in charging process, the most described communication protocol device U5 resets, and the output voltage of charger is 5V.Thus, the output charging voltage of charger with automatic Modulation, thus can realize quick charge.
Described filling soon manages at least two groups of circuit, the most described controlling circuit of voltage regulation and telecommunication circuit at least two groups, described controlling circuit of voltage regulation low-voltage output with described transforming circuit respectively is connected, i.e. can realize synchronization is two or more equipment charge, meets the demand that synchronization is multiple devices charging.In a preferred embodiment, the described management circuit that fills soon has 3 groups, the most described controlling circuit of voltage regulation and telecommunication circuit are respectively arranged with 3 groups, the low-voltage output with described transforming circuit respectively of pwm control circuit described in 3 groups is connected, i.e. can realize synchronization is 3 equipment charges, meets the demand that synchronization is 3 equipment charges.
Claims (8)
1. the USB quick charger of multiple-channel output, it is characterized in that, including the transforming circuit for mains supply being transformed into low-tension supply, also include the low-voltage output power taking from described transforming circuit of at least two-way and export charging voltage fill management circuit soon, each management circuit that fills soon connects a USB interface, the described management circuit that fills soon includes that controlling circuit of voltage regulation, described controlling circuit of voltage regulation regulate voluntarily according to the feedback of its outfan, thus exports burning voltage to USB interface.
The USB quick charger of multiple-channel output the most according to claim 1, it is characterized in that: EMI filter rectifier that described transforming circuit includes being sequentially connected with from input to load end, switch transformed circuit, synchronous rectification filter circuit, output voltage sampling circuit, this USB quick charger also includes that main control circuit, described main control circuit carry out output regulation signal to switch transformed circuit according to the sampled value of described output voltage sampling circuit.
The USB quick charger of multiple-channel output the most according to claim 1, it is characterized in that: described filling soon manages controlling circuit of voltage regulation and the telecommunication circuit that circuit includes being sequentially connected with, described controlling circuit of voltage regulation obtains the cell voltage of load by described telecommunication circuit, switches the charging voltage of its output with this.
The USB quick charger of multiple-channel output the most according to claim 3, it is characterized in that: described telecommunication circuit includes being provided with the communication protocol device U5 of information terminal and is provided with the USB interface of data terminal, described information terminal connects described data terminal, and described communication protocol device U5 obtains the magnitude of voltage of the battery of load by described information terminal.
The USB quick charger of multiple-channel output the most according to claim 4, it is characterised in that: described communication protocol device U5 is CHY100 chip.
The USB quick charger of multiple-channel output the most according to claim 3, it is characterized in that: described controlling circuit of voltage regulation includes PWM controller U4, described PWM controller is provided with Voltage Feedback terminal, output voltage terminals, described Voltage Feedback terminal connects the voltage control terminal with communication protocol device U5, and described output voltage terminals connects the charging terminal of USB interface.
The USB quick charger of multiple-channel output the most according to claim 6, it is characterised in that described PWM controller U4 is ACT4533C chip.
The USB quick charger of multiple-channel output the most according to claim 7, it is characterised in that: if detecting, when load end is zero load, described controlling circuit of voltage regulation exports the second charging voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521124695.0U CN205753578U (en) | 2015-12-31 | 2015-12-31 | The USB quick charger of multiple-channel output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521124695.0U CN205753578U (en) | 2015-12-31 | 2015-12-31 | The USB quick charger of multiple-channel output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205753578U true CN205753578U (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521124695.0U Expired - Fee Related CN205753578U (en) | 2015-12-31 | 2015-12-31 | The USB quick charger of multiple-channel output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205753578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019000255A1 (en) * | 2017-06-28 | 2019-01-03 | 凤冠电机（深圳）有限公司 | Charging control circuit and unmanned aerial vehicle charger |
-
2015
- 2015-12-31 CN CN201521124695.0U patent/CN205753578U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019000255A1 (en) * | 2017-06-28 | 2019-01-03 | 凤冠电机（深圳）有限公司 | Charging control circuit and unmanned aerial vehicle charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20181231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |