CN203840043U - Charging adapter - Google Patents
Charging adapter Download PDFInfo
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- CN203840043U CN203840043U CN201420247854.5U CN201420247854U CN203840043U CN 203840043 U CN203840043 U CN 203840043U CN 201420247854 U CN201420247854 U CN 201420247854U CN 203840043 U CN203840043 U CN 203840043U
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Abstract
The utility model discloses a charging adapter, and relates to the field of electronic product charging technology, which comprises an adapter, and an electrical appliance connected with the adapter. The adapter is provided with an output voltage conversion control circuit and an MCU output control circuit. The electrical appliance is provided a conversion voltage input circuit and an MCU input control circuit. The MCU output control circuit and the MCU input control circuit are capable of being in handshaking communication with each other so as to control the conversion of the power transmission between the adapter and the electrical appliance. According to the technical scheme of the utility model, the adapter and the electrical appliance are capable of being in handshaking communication with each other, so that the output voltage between the adapter and the electrical appliance can be adjusted. Therefore, the current transmitted between the adapter and the electrical appliance is kept unchanged through increasing the output voltage, and the power transmitted between the adapter and the electrical appliance is also increased. Meanwhile, the charging process is ensured to be quick, efficient and safe.
Description
Technical field
The utility model relates to electronic product charging technique field, relates in particular to a kind of charging adaptive device.
Background technology
Along with development in science and technology, the charging devices such as panel computer, mobile phone, portable power source have been applied in life and work widely, along with reducing of charging device volume, the battery flying power of charging device more and more comes into one's own and pays close attention to, to charging device fast, effectively, the aspect such as safe charging requires also more and more higher.And while charging between existing adapter and charging device, adapter can only adopt constant power output, can not carry out the conversion of power output or power output can only one among a small circle in fluctuation, can not realize the conversion of carrying out multiple power input at same socket, thereby affect the charging interval of charging device.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of quick, effective, safe charging adaptive device, comprises following scheme:
A kind of charging adaptive device, comprises the electrical appliance of adapter, Payload attach fitting;
Described adapter comprises: input rectifying filter circuit, transformer, output rectifier and filter, sampling feedback circuit, PWM ON-OFF control circuit, USB output port; The input of described input rectifying filter circuit is connected with external power source, and output is connected with one end of primary winding; The other end of primary winding is connected with the output of PWM ON-OFF control circuit, and one end of transformer secondary output winding is connected with the input of output rectifier and filter; The other end ground connection of transformer secondary output winding; The output of output rectifier and filter connects USB output port; The sampling end of sampling feedback circuit is connected with the output of output rectifier and filter, and output is connected with the input of PWM ON-OFF control circuit;
Described electrical appliance comprises: USB input port, initial voltage input circuit, charging device; Described USB input port is connected with initial voltage input circuit input, and initial voltage input circuit output is connected with the input of charging device;
Described adapter also comprises:
One output voltage transforms control circuit, and its output is connected with sampling feedback circuit, for reception control signal, controls the output voltage of adapter;
One MCU output control circuit, the input that transforms control circuit with output voltage is connected, and transforms control circuit for outputting a control signal to output voltage; MCU output control circuit is connected with D+ and the D-end of USB output port, for receiving and output communication identification signal;
Described electrical appliance also comprises:
One changing voltage input circuit, its input is connected with USB input port, and output is connected with the input of charging device, for changing the input voltage of electrical appliance;
One MCU input control circuit, it connects respectively initial voltage input circuit, changing voltage input circuit on electrical appliance, for controlling the conversion of initial voltage input circuit and changing voltage input circuit; MCU input control circuit is connected with D+ and the D-end of USB input port, for receiving and output communication identification signal.
Further, described adapter is connected by USB line with electrical appliance.
Further, described adapter also comprises output protection circuit, and its input is connected with the output of output rectifier and filter.
The beneficial effects of the utility model: adapter and electrical appliance can carry out handshake communication, realize the transmission voltage of adjusting between adapter and electrical appliance, by improving transmission voltage, to maintain two transmission currents between equipment constant, improve the power transmitting between adapter and electrical appliance, realize quick, effective, safe charging.
Brief description of the drawings
Fig. 1 is the structural representation of adapter in the utility model embodiment;
Fig. 2 is the structural representation of electrical appliance in the utility model embodiment;
Fig. 3 is the circuit theory diagrams of adapter in the utility model embodiment.
Embodiment
In order to more fully understand technology contents of the present utility model, below in conjunction with specific embodiment, the technical solution of the utility model is further introduced and explanation.
Embodiment
The present embodiment provides a kind of charging adaptive device, comprises the electrical appliance of adapter, Payload attach fitting, and the normal output voltage of this adapter is 5V, in the time of itself and electrical appliance handshake communication, can be converted into 10V output electrical appliance is charged.
Adapter as shown in Figure 1, comprises that input rectifying filter circuit 1, transformer 2, output rectifier and filter 3, sampling feedback circuit 6, PWM ON-OFF control circuit 5, USB output port 4, output voltage transform control circuit 7, MCU output control circuit 8, output protection circuit 9; The input of input rectifying filter circuit 1 can be connected with outside 220V AC power, and output is connected with one end of transformer 2 armature windings; The other end of transformer 2 armature windings is connected with the output of PWM ON-OFF control circuit 5, and one end of transformer 2 secondary winding is connected with the input of output rectifier and filter 3; The other end ground connection of transformer 2 secondary winding; The output of output rectifier and filter 3 connects USB output port 4; For preventing excessive adapter and the electrical appliance of damaging of output current, between output rectifier and filter 3 and USB output port 4, be connected an output protection circuit 9, the input of output protection circuit 9 is connected with the output of output rectifier and filter 3; The sampling end of sampling feedback circuit 6 is connected with the output of output rectifier and filter 3, and output is connected with the input of PWM ON-OFF control circuit 5; The output that output voltage transforms control circuit 7 is connected with sampling feedback circuit 6, for reception control signal, controls the output voltage of adapter; MCU output control circuit 8 is connected with the input that output voltage transforms control circuit 7, be used for outputting a control signal to output voltage and transform control circuit 7, MCU output control circuit 8 is connected with D+ and the D-end of USB output port 4, for exporting the communication identification signal between reception and electrical appliance.
Electrical appliance as shown in Figure 2, comprises USB input port 20, initial voltage input circuit 21, charging device 23, changing voltage input circuit 22, MCU input control circuit 24; Wherein, USB input port 20 can be connected with the USB output port 4 of adapter by USB line; The input of initial voltage input circuit 21, changing voltage input circuit 22 is connected with USB input port 20 respectively, and output is connected with the input of charging device 23 respectively; MCU input control circuit 24 connects respectively initial voltage input circuit 21 and the changing voltage input circuit 22 on electrical appliance, for controlling the switching of initial voltage input circuit 21 and changing voltage input circuit 22, MCU input control circuit 24 is connected with D+ and the D-end of USB input port 20, for receiving the communication identification signal between output and adapter.
The circuit theory diagrams of adapter as shown in Figure 3, input rectifying filter circuit 1 comprises the AC importation 01, EMC part 02, rectifying and wave-filtering part 03, the peak absorbing part 04 that connect successively; Transformer 2 comprises voltage transitions and energy storage section 05; Output rectifier and filter 3 comprises secondary commutation filtering part 08; Sampling feedback circuit 6 comprises output sampling part 12, compensated part 11, feedback fraction 09, UI power pack 10; PWM ON-OFF control circuit 5 comprises elementary ICVCC power pack 06, PWM control section 07; USB output port 4 comprises USB output 14; Output voltage transforms control circuit 7 and comprises output voltage switching part 15; MCU input control circuit 8 comprises MCUVCC power pack 13 and MCU output control part 17; Output protection circuit 9 comprises over-current detection part 16.
MCU output control part 17 can be by sending the switch of the triode Q2 in control signal control output voltage switching part 15, change the sampled signal that output sampling part 12 is exported, sampled signal sends to PWM control section 07 by feedback fraction 09, change the output voltage of voltage transitions and energy storage section 05 by PWM control section 07, realize the switching of output voltage, concrete transfer process is:
In the time that MCU output control part 17 output low level control triode Q2 close, adapter 5V output;
In the time that MCU output control part 17 is exported high level control triode Q2 and is opened, adapter 10V output.
The charging method of adapter and electrical appliance is as follows:
S1: after adapter access AC power supplies, it is 5V output that output voltage is set in initial output voltage, and electrical appliance is set in initial voltage input circuit 5V input.
S2: the MCU output control circuit 8 on adapter sends communication identification signal to the MCU input control circuit 20 on electrical appliance, and MCU input control circuit 20 returns to a communication identification signal to MCU output control circuit 8;
In the time that MCU output control circuit 8 receives communication identification signal error that MCU input control circuit 20 returns and maybe can not receive the communication identification letter returning, adapter and the electrical appliance recognition failures of shaking hands, adapter keeps 5V output, and electrical appliance also remains 5V input.
In the time that MCU output control circuit 8 receives the communication identification signal that MCU input control circuit 20 returns, adapter and electrical appliance are shaken hands and are identified successfully, and MCU output control circuit 8 continues to send data messages to MCU input control circuit 20; MCU input control circuit 20 is accepted after data message, control initial voltage input circuit 21 is switched to changing voltage input circuit 22 and carries out 10V input, return data information is to MCU output control circuit 8 simultaneously, when MCU output control circuit 8 receives return data information, send control signal to output voltage conversion control circuit 7, make adaptor voltages be converted to 10V output.
The above only further illustrates technology contents of the present utility model with embodiment; so that reader is easier to understand; but do not represent that execution mode of the present utility model only limits to this, any technology of doing according to the utility model is extended or recreation, is all subject to protection of the present utility model.
Claims (3)
1. a charging adaptive device, comprises the electrical appliance of adapter, Payload attach fitting;
Described adapter comprises: input rectifying filter circuit, transformer, output rectifier and filter, sampling feedback circuit, PWM ON-OFF control circuit, USB output port; The input of described input rectifying filter circuit is connected with external power source, and output is connected with one end of primary winding; The other end of primary winding is connected with the output of PWM ON-OFF control circuit, and one end of transformer secondary output winding is connected with the input of output rectifier and filter; The other end ground connection of transformer secondary output winding; The output of output rectifier and filter connects USB output port; The sampling end of sampling feedback circuit is connected with the output of output rectifier and filter, and output is connected with the input of PWM ON-OFF control circuit;
Described electrical appliance comprises: USB input port, initial voltage input circuit, charging device; Described USB input port is connected with the input of initial voltage input circuit, and initial voltage input circuit output is connected with the input of charging device;
It is characterized in that:
Described adapter comprises:
One output voltage transforms control circuit, and its output is connected with sampling feedback circuit, for reception control signal, controls the output voltage of adapter;
One MCU output control circuit, the input that transforms control circuit with output voltage is connected, and transforms control circuit for outputting a control signal to output voltage; MCU output control circuit is connected with D+ and the D-end of USB output port, for receiving and output communication identification signal;
Described electrical appliance comprises:
One changing voltage input circuit, its input is connected with USB output port, and output is connected with the input of charging device, for changing the input voltage of electrical appliance;
One MCU input control circuit, it connects respectively initial voltage input circuit, changing voltage input circuit on electrical appliance, for controlling the conversion of initial voltage input circuit and changing voltage input circuit; MCU input control circuit is connected with D+ and the D-end of USB input port, for receiving and output communication identification signal.
2. charging adaptive device according to claim 1, is characterized in that: described adapter is connected by USB line with electrical appliance.
3. charging adaptive device according to claim 1, is characterized in that: described adapter also comprises output protection circuit, and its input is connected with the output of output rectifier and filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247854.5U CN203840043U (en) | 2014-05-14 | 2014-05-14 | Charging adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247854.5U CN203840043U (en) | 2014-05-14 | 2014-05-14 | Charging adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203840043U true CN203840043U (en) | 2014-09-17 |
Family
ID=51517840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420247854.5U Expired - Fee Related CN203840043U (en) | 2014-05-14 | 2014-05-14 | Charging adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203840043U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552973A (en) * | 2014-10-28 | 2016-05-04 | 南京德朔实业有限公司 | Electric energy transmission system and power supply system and charging combination thereof |
| US10727687B2 (en) | 2016-02-05 | 2020-07-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging system and method for terminal, power adapter and charging device |
| CN111478411A (en) * | 2020-06-01 | 2020-07-31 | 上海闻泰电子科技有限公司 | Charging voltage prompting method and electronic equipment |
-
2014
- 2014-05-14 CN CN201420247854.5U patent/CN203840043U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552973A (en) * | 2014-10-28 | 2016-05-04 | 南京德朔实业有限公司 | Electric energy transmission system and power supply system and charging combination thereof |
| CN105552973B (en) * | 2014-10-28 | 2020-07-17 | 南京德朔实业有限公司 | Electric energy transmission system and power supply system and charging combination thereof |
| US10727687B2 (en) | 2016-02-05 | 2020-07-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging system and method for terminal, power adapter and charging device |
| CN111478411A (en) * | 2020-06-01 | 2020-07-31 | 上海闻泰电子科技有限公司 | Charging voltage prompting method and electronic equipment |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20180514 |