CN204696725U - A kind of universal quick charger - Google Patents

Abstract

The utility model relates to electronic technology field, particularly relate to a kind of universal quick charger, comprise: power transfer module, fill USB output control module soon, fill USB output module soon, generic USB output control module and generic USB output module, the described USB output control module that fills soon is connected with described power transfer module, the described USB output module that fills soon is connected with described power transfer module and the described USB output control module that fills soon, described generic USB output control module is connected with described power transfer module and the described USB output control module that fills soon, described generic USB output module is connected with described generic USB output control module, the utility model has higher universal, improves the features such as power output utilance, has saved production cost further.

Description

A universal fast charger

technical field

The utility model relates to the field of electronic technology, in particular to a universal fast charger.

Background technique

At present, there are many different fast USB chargers on the market. The fast USB charger is used for fast charging of mobile devices. This fast USB charger can be backward compatible with the original USB charger (5.0V DC output) on the market. , These fast USB chargers generally have three output voltages: 5V, 9V and 12V.

Among them, when the mobile device does not support the fast charging function, the USB charger is 5V output, and the output current at this time is related to the mobile device, and the output current generally does not exceed 2.0A. Further, the maximum output power of the USB charger is about 10W, normal USB charging mode; when the mobile device supports the fast charging function, the USB charger will output 9V or 12V voltage to the mobile device according to the instructions of the mobile device. At this time, the maximum output current is about 1.6A, and the USB charging in this state The output power of the device is about 14.4W; it can be seen that when the USB output voltage is in the normal charging state of 5V, the output power of the USB does not reach the maximum output, which causes a large surplus of the output power of the USB. Further, Caused a waste of cost.

For this reason, it is urgent to provide a universal fast charger to overcome the above-mentioned defects.

Utility model content

The utility model provides a universal fast charger to overcome the above-mentioned defects. The utility model realizes the improvement of output power utilization, saves the cost of the USB charger, and increases the versatility of the fast charger.

In order to achieve the above object, the utility model adopts the following technical solutions;

A general-purpose fast charger, comprising: a power conversion module, a fast-charge USB output control module, a fast-charge USB output module, an ordinary USB output control module, and an ordinary USB output module, the fast-charge USB output control module and the power supply The conversion module is connected, the fast charge USB output module is connected with the power conversion module and the fast charge USB output control module, the ordinary USB output control module is connected with the power conversion module and the fast charge USB output control module connected, the common USB output module is connected with the common USB output control module.

Preferably, the power conversion module includes: an AC-DC power conversion unit, and the AC-DC power conversion unit is connected to the fast charging USB output control module and the normal USB output control module.

Preferably, the power conversion module further includes: a DC-DC power conversion unit, the DC-DC power conversion unit is connected to the fast charging USB output control module and the normal USB output control module.

Preferably, the normal USB output control module includes: a switch-type DC-DC conversion circuit, and the switch-type DC-DC conversion circuit is connected to the power conversion module and the normal USB output module.

Preferably, the fast charging USB output control module includes: a voltage control unit, the voltage control unit is respectively connected to the power conversion module, the fast charging USB output module and the normal USB output module.

Preferably, the normal USB output control module includes: a first control unit and a first on/off unit, the first control unit is connected to the fast charging USB output control module and the first on/off unit , the first on/off unit is connected to the common USB output module.

Preferably, the control unit includes: a first diode and a second diode, the anode of the first diode is connected to the fast charge USB output control module and the cathode of the second diode is connected to the The first on/off unit is connected, and the anode of the second diode is connected to the fast charging USB output control module and the first on/off unit.

Preferably, the normal USB output control module includes: a detection and judgment unit and a second on/off unit, the detection and judgment unit is connected to the fast charging USB output control module and the second on/off unit, the The second on/off unit is connected to the common USB output module.

Preferably, the detection and judgment unit includes: a first resistor and a first Zener diode, one end of the first resistor is connected to the fast charge USB output control module and the second on/off unit, the first One end of a Zener diode is connected to the other end of the first resistor, and the other end of the first Zener diode is connected to the second on/off unit.

Preferably, the number of the normal USB output control module matches the number of the normal USB output modules, and each of the normal USB output control modules is connected to each of the normal USB output modules.

The beneficial effects of the utility model are: a universal fast charger of the utility model, comprising: a power conversion module, a fast charging USB output control module, a fast charging USB output module, a common USB output control module and a common USB output module, The fast charge USB output control module is connected to the power conversion module, the fast charge USB output module is connected to the fast charge USB output control module, the normal USB output control module is connected to the power conversion module and the The fast charge USB output control module is connected, and the common USB output module is connected with the common USB output control module; the utility model makes the output of the utility model by adding one or more common USB output control modules and common USB output modules. The power is improved, thereby saving the cost of the USB charger. In addition, through the control of the fast charging USB output control module on the power conversion module and the ordinary USB output control module, the output power of the present invention can be While reaching the maximum percentage, the utility model also has better versatility.

The utility model will become clearer through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the utility model.

Description of drawings

The utility model is further described with accompanying drawings, but the embodiment in the accompanying drawings does not constitute any limitation to the utility model.

Fig. 1 is a block diagram of a universal fast charger of the present invention.

FIG. 2 is a circuit diagram of FIG. 1 .

FIG. 3 is another circuit diagram of FIG. 1 .

Fig. 4 is the circuit diagram of the utility model embodiment 2.

Fig. 5 is a circuit diagram of Embodiment 3 of the present utility model.

Fig. 6 is another circuit diagram of Embodiment 3 of the present utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further, and this is the preferred embodiment of the utility model.

Example 1:

Please combine Figure 1, Figure 2 and Figure 3, the utility model is a universal fast charger 00, including: power conversion module 1, fast charging USB output control module 2, fast charging USB output module 3, ordinary USB output control module 4 and an ordinary USB output module 5, the fast charge USB output control module 2 is connected to the power conversion module 1, the fast charge USB output module 3 is connected to the power conversion module 1 and the fast charge USB output control module 2 connection, the normal USB output control module 4 is connected to the power conversion module 1 and the fast charge USB output control module 2, and the normal USB output module 5 is connected to the normal USB output control module 4; specifically , the power conversion module 1 is used to convert the AC power or DC power into the DC power and current required by the mobile device to be charged; The connected mobile device to be charged sends a corresponding control signal; the fast charging USB output module 3 is used to output the corresponding voltage/current to the mobile device to be charged; the common USB output control module 4 is used to The signal sent by the fast charging USB output control module 2 controls the work of the common USB charging module 5; Charged mobile equipment; more specifically, when the fast charging USB output module 3 is connected to a mobile device that supports fast charging, the fast charging USB output control module 2 communicates with the mobile device, further, according to the The mobile device needs to send corresponding information to control the power conversion module 1 to output a suitable voltage/current. At this time, the common USB output control module 4 is in a closed state, and the common USB output module 5 has no output; When the mobile device connected to the fast charging USB output module is a mobile device that does not support fast charging, the common USB output control module 2 is opened, and in this state, the fast charging USB output module 3 and the common USB output module 5 Both are on and have the same function. The utility model increases the output power of the utility model by adding a common USB output control module 4 and a common USB output module 5 on the charger, thereby saving the production cost of the USB charger. In addition, through the power conversion module 1 increases the versatility of the universal fast charger 00.

Preferably, the power conversion module 1 includes: an AC-DC power conversion unit, the AC-DC power conversion unit is connected to the fast charging USB output control module 2 and the normal USB output control module 4; specifically, Through the arrangement of the AC-DC power conversion unit, the utility model is applicable to the application category of AC-DC conversion.

Preferably, the power conversion module 1 further includes: a DC-DC power conversion unit, the DC-DC power conversion unit is connected to the fast charging USB output control module 2 and the normal USB output control module 4; specifically Through the arrangement of the DC-DC power conversion unit, the utility model is applicable to the category of DC-to-DC applications.

Preferably, the normal USB output control module 4 includes: a first control unit and a first on/off unit, the first control unit is connected to the fast charging USB output control module 4 and the first on/off unit connection, the first on/off unit is connected to the common USB output module 5; specifically, the first control unit includes: a first diode and a second diode, and the first diode The anode is connected to the fast charge USB output control module 4 and the second diode cathode and the first on/off unit, and the second diode anode is connected to the fast charge USB output control module 2 and The first on/off unit is connected; more specifically, as shown in FIG. 2, the first diode is a diode D10, the second diode is a diode D11, and the diode D10 and the diode D11 are respectively Connected to the voltage signal pin of the voltage control unit of the fast charging USB output control module 2, when the fast charging USB output control module 2 detects that the currently connected mobile device supports the fast charging function, through the The voltage control signal terminal and the diode D10 and the diode D11 are turned on to close the Q4 of the first on/off unit, and the common USB output module 5 is closed; when the fast charging USB output control module 2 detects and judges When the connected mobile device does not support the fast charging function, the fast charging USB output control module 2 turns on the first open/closed circuit through the non-conduction of the voltage control unit, the diode D10 and the diode D11. Q4 of the off unit, so that the common USB output module 5 is opened; as shown in Figure 3, the first diode is diode D1, the second diode is D2, and the diode D1 and diode D2 Respectively connected to the voltage signal pins of the voltage control unit of the shown fast charging USB output control module 2, when the fast charging USB output control module 2 detects that the currently connected mobile device supports the fast charging function, through the The voltage control signal terminal and the diode D1 and the diode D2 are turned on to close the Q2 of the first on/off unit, and the normal USB output module 5 is closed; when the fast charging USB output control module 2 detects When it is determined that the connected mobile device does not support the fast charging function, the fast charging USB output control module 2 turns on the first switch through the non-conduction of the voltage control unit, the diode D1 and the diode D2. /Close Q2 of the unit, so that the common USB output module 5 is opened.

Preferably, the number of the common USB output control module 4 and the common USB output module 5 matches, and each of the common USB output control modules 4 is connected to each of the common USB output modules; specifically, Each of the common USB output control modules 4 is respectively connected with the fast charge USB output control module 2 and each of the common USB output modules 5, and each additional set of common USB output control modules 4 and common USB output modules, then Correspondingly, a USB charging port is added, and the output power of the utility model is maximized by the setting of the common USB charging port.

Example 2:

Please refer to Fig. 4, the utility model is a universal fast charger 00, including: power conversion module 1, fast charging USB output control module 2, fast charging USB output module 3, normal USB output control module 4 and common USB output module 5. The fast charging USB output control module 2 is connected to the power conversion module 1 and the fast charging USB output module 3, and the normal USB output control module 4 is connected to the fast charging USB output control module 2 and the The output module 5 is connected; wherein, the normal USB output control module 4 includes: a switch-type DC-DC conversion circuit, and the switch-type DC-DC conversion circuit is connected to the power conversion module 1 and the normal USB output module 5 ; Specifically, the setting of the switch-type DC-DC conversion circuit realizes the step-down/direct connection control function of the electrical signal output of the common USB output module 5; specifically, the switch-type DC-DC conversion circuit Including a common DC-DC step-down converter U5, the maximum duty cycle of the internal circuit of the DC-DC step-down converter U5 is 100%, so that the maximum work duty cycle supported by the common USB output control module 4 The ratio reaches 100%; further, when the output of the fast charging USB output control module 2 is in the fast charging high voltage output state, the switch-type DC-DC conversion circuit is in the step-down working state, and the constant voltage output is +5V; when When the output of the fast charging USB output control module 2 is in the +5V output state, the switch-type DC-DC conversion circuit is converted to a control state of direct DC-DC connection with a duty cycle of 100%, so that the normal USB output control The +5V output voltage of the module 4 drops to the minimum, so that the fast charging USB output module 3 and the ordinary USB output module 5 can work at the same time, and further, the utility model improves the output power utilization rate At the same time, it has higher versatility.

The difference between this embodiment and Embodiment 1 is that the common USB output module 4 includes a switch-type DC-DC conversion circuit, and other structures are similar to Embodiment 1. For the working principles of other modules in this embodiment, please refer to the above embodiment The description will not be repeated here; through the setting of the switch type DC-DC conversion circuit, the fast charging USB output module 3 and the ordinary USB output module 5 of the present utility model can be used for each power supply device at the same time , the universal type is better; in addition, the utility model makes the utilization rate of the output power of the utility model improved through the setting of the common USB output control module 4 and the common USB output module 5, and further reduces the cost of the utility model. Production costs of utility models.

Example 3:

Please refer to Fig. 5 and Fig. 6, a universal fast charger 00 of the utility model, including: a power conversion module 1, a fast charging USB output control module 2, a fast charging USB output module 3, an ordinary USB output control module 4 and an ordinary USB output module 5, the fast charge USB output control module 2 is connected to the power conversion module 1, the fast charge USB output module 3 is connected to the power conversion module 1 and the fast charge USB output control module 2, The normal USB output control module 4 is connected with the power conversion module 1 and the fast charging USB output control module 2, and the normal USB output module 5 is connected with the normal USB output control module 4; specifically, the The power conversion module 1 is used to convert the AC power or the DC power into the required DC power and current of the mobile device to be charged; The mobile device to be charged sends a corresponding control signal; the fast charging USB output module 3 is used to output the corresponding voltage/current to the mobile device to be charged; the common USB output control module 4 is used for charging according to the fast charging USB The signal sent by the output control module 2 controls the work of the ordinary USB charging module 5; equipment; more specifically, when the fast charging USB output module 3 is connected to a mobile device that supports fast charging, the fast charging USB output control module 2 communicates with the mobile device, and further, according to the needs of the mobile device Send corresponding information to control the power conversion module 1 to output a suitable voltage/current. At this time, the ordinary USB output control module 4 is in a closed state, and the ordinary USB output module 5 has no output; when combined with the fast charging When the mobile device connected to the USB output module is a mobile device that does not support fast charging, the common USB output control module 2 is opened, and in this state, the fast charge USB output module 3 and the common USB output module 5 are turned on simultaneously state and have the same function. The utility model increases the output power of the utility model by adding a common USB output control module 4 and a common USB output module 5 on the charger, thereby saving the production cost of the USB charger. In addition, through the power conversion module 1 increases the versatility of the universal fast charger 00. Wherein, the normal USB output control module 4 includes: a detection and judgment unit and a second on/off unit, the detection and judgment unit is connected to the fast charge USB output control module 2 and the second on/off unit, the The second on/off unit is connected to the normal USB output module 5; specifically, the detection and judgment unit includes: a first resistor and a first Zener diode, one end of the first resistor is connected to the fast charging USB output The control module 2 is connected to the second on/off unit, one end of the first Zener diode is connected to the other end of the first resistor, and the other end of the first Zener diode is connected to the second on/off unit. off unit connection. Further, the first resistor is a resistor R18, the first voltage regulator tube is a voltage regulator diode ZD2, and when the fast charging USB output control module 2 detects that the connected device supports the fast charging function, the power supply The voltage of the conversion module 1 rises, the fast charging USB output module 3 outputs a high voltage, the first Zener diode ZD2 is turned on, thereby controlling the Q2 of the second on/off unit to be disconnected, and the normal USB output module 5 off; when the fast charging USB output control module 2 detects that the access device does not support the fast charging function, the power supply of the power conversion module 1 remains unchanged, and the voltage regulator diode ZD2 is turned off, thereby controlling the first Q2 of the second on/off unit is turned on, and then the common USB output module 5 works, which further makes the utility model have better versatility.

As can be seen from the above description, the utility model is a general-purpose fast charger 00, through the control of the power conversion module 1 and the normal USB output control module 4 by the fast charging USB output control module 2, so that The utility model has higher versatility. In addition, the setting of the common USB output control module 4 and the common USB output module 5 enables the utilization rate of the output power of the utility model to reach the maximum value, further saving costs. Production costs of utility models.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (10)

1. A general type fast charger, is characterized in that, comprises: power conversion module, fast charge USB output control module, fast charge USB output module, common USB output control module and common USB output module, described fast charge USB output The control module is connected to the power conversion module, the fast charge USB output module is connected to the power conversion module and the fast charge USB output control module, and the normal USB output control module is connected to the power conversion module and the The fast charging USB output control module is connected, and the normal USB output module is connected with the normal USB output control module. 2. The universal fast charger according to claim 1, wherein the power conversion module comprises: an AC-DC power conversion unit, the AC-DC power conversion unit and the fast charging USB output control module And the common USB output control module is connected. 3. The universal fast charger according to claim 1, wherein the power conversion module further comprises: a DC-DC power conversion unit, and the DC-DC power conversion unit is connected with the fast charging USB output control The module is connected with the normal USB output control module. 4. The universal fast charger as claimed in claim 1, wherein the common USB output control module comprises: a switch-type DC-DC conversion circuit, and the switch-type DC-DC conversion circuit is connected with the power conversion module and the normal USB output module is connected. 5. The universal fast charger according to claim 1, wherein the fast charging USB output control module comprises: a voltage control unit, the voltage control unit is respectively connected to the power conversion module, the fast charging The USB output module is connected with the common USB output module. 6. The universal fast charger according to claim 1, wherein the common USB output control module comprises: a first control unit and a first on/off unit, the first control unit and the fast The charging USB output control module is connected to the first on/off unit, and the first on/off unit is connected to the normal USB output module. 7. The universal fast charger according to claim 6, wherein the control unit comprises: a first diode and a second diode, and the anode of the first diode is connected to the fast charger. The USB output control module and the second diode cathode are connected to the first on/off unit, and the second diode anode is connected to the fast charging USB output control module and the first on/off unit connect. 8. The universal fast charger as claimed in claim 1, wherein the common USB output control module comprises: a detection and judgment unit and a second on/off unit, and the detection and judgment unit is connected to the fast charging USB The output control module is connected to the second on/off unit, and the second on/off unit is connected to the common USB output module. 9. The universal fast charger according to claim 8, wherein the detection and judging unit comprises: a first resistor and a first Zener diode, one end of the first resistor is connected to the fast charging USB output control The module is connected to the second on/off unit, one end of the first Zener diode is connected to the other end of the first resistor, and the other end of the first Zener diode is connected to the second on/off unit connect. 10. The universal fast charger as claimed in claim 1, characterized in that, the number of the common USB output control module and the common USB output module matches, each of the common USB output control modules is respectively connected with Each of the common USB output modules is connected.