CN110176792A - More mouthfuls of fast charging type portable power source circuits of one kind and its control method - Google Patents
More mouthfuls of fast charging type portable power source circuits of one kind and its control method Download PDFInfo
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- CN110176792A CN110176792A CN201910222863.6A CN201910222863A CN110176792A CN 110176792 A CN110176792 A CN 110176792A CN 201910222863 A CN201910222863 A CN 201910222863A CN 110176792 A CN110176792 A CN 110176792A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Abstract
The present invention discloses a kind of more mouthfuls of fast charging type portable power source circuits, including inputting detection module, export detection module, access control module and charge-discharge modules, access control module respectively with input detection module, output detection module is connected with charge-discharge modules, input detection module is connect at least two input ports USB, and power bus VBUS signal and protocol signal for detecting the input port USB, output detection module is connect at least two USB outlets, and the power bus VBUS signal for detecting USB outlet, protocol signal and external output control signal, each input port USB and USB outlet are connect by switch element with charge-discharge modules respectively, the control terminal of switch element is connect with access control module.For the present invention by the switching sequence of control access, solving more mouthfuls of fast charging type portable power sources not only influences fast charge experience, or even there are problems that security risk.
Description
Technical field
The present invention relates to charging equipment technical fields, and in particular to more mouthfuls of fast charging type portable power source circuits of one kind and its controlling party
Method.
Background technique
Universal with portable mobile apparatus such as mobile phone, tablet computers, accessory such as mobile power source in mobile phone periphery vehicle-mounted fills
The products such as electric appliance, adapter are also more and more, especially support the mobile power source of fast charge function, can both mend at any time to mobile device
Electricity, while the charging time is greatly shortened again.The interface of mobile device, charger and USB cable is more and more diversified at present, such as
Type-A mouthfuls, Type-C mouthfuls, Micro-B mouthfuls and Lightning mouthfuls.In addition, mobile device battery capacity is increasing, mobile electricity
Source battery capacity itself is also increasing, and to accelerate charging rate, reduces the charging time, is badly in need of two-way fast charge function.More than being based on
Application demand, Multiinputoutput mouth, two-way fast charge function become the trend of mobile power source product development.
For the fast charging type portable power source of Multiinputoutput mouth, common 5V equipment charge can also both fill fast fill device
Electricity can also charge simultaneously to multiple equipment, need to prevent high voltage when fast charge from damaging to conventional equipment.Meanwhile there is also
It is the demand of charging of mobile devices, i.e., the demand put when filling while when charging for mobile power source.To meet the above demand, need
Multiple input/output ports are carried out effectively connecing into and out detection, and carry out the control of more mouthfuls of channel selectors with this, so that
Under the premise that security is guaranteed, better fast charge experience is obtained.
Current more mouthfuls of fast charging type portable power sources, more mouthfuls connect into and out detection, channel selector control, fast charge response in terms of
There are some problems, such as access detection failure removes too long detection response time or even failure, channel selector control not in safety
Switching under voltage causes there are security risk etc., some mobile power sources are not supported to put when filling yet, the above variety of problems, no
But fast charge experience is influenced, or even there are security risks.
Summary of the invention
In view of the deficiencies of the prior art, one of the objects of the present invention is to provide a kind of more mouthfuls of fast charging type portable power source circuits,
For solving the problem of that existing more mouthfuls of fast charging type portable power sources not only influence fast charge experience or even there are security risks.
The contents of the present invention are as follows:
A kind of more mouthfuls of fast charging type portable power source circuits, including input detection module, output detection module, access control module and
Charge-discharge modules, the access control module respectively with the output end of the input detection module, the output detection module
Output end is connected with the input terminal of the charge-discharge modules, it is characterised in that: it is described input detection module input terminal at least
Two input port USB connections, and power bus VBUS signal and protocol signal for detecting the input port USB, the output inspection
Survey module input terminal connect at least two USB outlets, and be used for detect USB outlet power bus VBUS signal,
Protocol signal and external output control signal, and charge-discharge modules include the charging module connecting respectively with above-mentioned access control module
And discharge module, each input port USB and USB outlet pass through a switch element respectively and connect with the charge-discharge modules, often
The control terminal of a switch element is connect with the access control module, and charge-discharge modules are connected to ground by module of releasing, and is led to
Road control module is used to carry out channel status according to the detection signal of the input detection module and the output detection module to cut
It changes or maintains, and control the charge-discharge modules and carry out management of charging and discharging.
The second object of the present invention is to provide a kind of control method of more mouthfuls of fast charging type portable power source circuits, existing for solving
There are more mouthfuls of fast charging type portable power sources not only to influence fast charge experience, or even there are problems that security risk
A kind of control method of more mouthfuls of fast charging type portable power source circuits, comprising the following steps:
S1. it has detected whether external equipment access or has removed；
S2. situation is accessed or removed according to external equipment carry out channel status switching or maintenance；
Wherein channel status includes off-mode, single port input state, single port output state, puts state and more mouthfuls when filling
Output state；
When single port is to when more mouthfuls of switchings, i.e. single port input state is to putting state switching, single port output state when filling to side
It fills side and puts state switching or single port output state when switch to more mouthfuls of output states, access control module execution following steps:
11) voltage is dropped to common voltage value by control charge-discharge modules；
12) it opens module of releasing and discharge treatment is carried out to path capacitance；
13) whether detection voltage drops to secure threshold, if so, opening corresponding channel selector, otherwise continues to test；
14) do not apply for fast charge voltage to the input port USB, be not responding to the fast charge voltage request of USB outlet, and control charge and discharge
Electric module enters common charge and discharge mode；
When switching to single port for more mouthfuls, i.e., state is put when filling to the switching of single port output state, when filling and puts state to list
When the switching of mouth input state or more mouthfuls of output states switch to single port output state, access control module executes following steps:
If being switched to single input mouth state,
21) output channel switch is closed；And postpone the preset time；
22) apply for fast charge voltage to the input port USB, if applying successfully, controlling charging module and entering quick charging mode,
Otherwise enter normal charging mode；
If being switched to single delivery outlet state,
31) switch of discharge module and input and output access is closed, and postpones the preset time；
32) switch for opening discharge module and output channel, so that external equipment re-powers；
33) the fast charge voltage request for responding USB outlet controls discharge module into fast charge and discharge if responding successfully
Otherwise mode enters common discharge mode.
Preferably, the method that external equipment access is detected whether in step S1 or is removed are as follows:
The input port USB access external equipment detection: detection the input port USB power bus VBUS voltage value whether be more than
Threshold value, or detect whether the current value of the power bus VBUS of the input port USB is more than threshold value, or the agreement of the detection input port USB
Signal whether successful connection, if any one is set up, there is external equipment access in the input port USB, if invalid, USB is defeated
Entrance does not have external equipment access；
The input port USB removes external equipment detection: whether the voltage value of the power bus VBUS of the detection input port USB is lower than
Whether threshold value, or the current value of power bus VBUS of the detection input port USB are lower than threshold value, or the agreement of the detection input port USB
Whether signal connects disconnection or goes offline, if any one is set up, there is external equipment removal in the input port USB, if invalid,
The input port USB does not have external equipment removal；
USB outlet accesses external equipment detection: whether the voltage value for detecting the power bus VBUS of USB outlet is drawn
Whether low preset amplitude, or the DP signal or DM signal of detection USB outlet are pulled low preset amplitude, or detection USB defeated
The protocol signal of outlet whether successful connection, or detected whether external output control signal, if any one is set up, USB
Delivery outlet has external equipment access, if invalid, USB outlet does not have external equipment access；
USB outlet removes external equipment detection: whether the current value for detecting the power bus VBUS of USB outlet is lower than
Threshold value, and continue preset time, or whether the protocol signal of detection USB outlet disconnects or go offline, or has detected whether
Outside output control signal, if any one is set up, USB outlet has external equipment removal, if invalid, USB is defeated
No external equipment is exported to remove；
Wherein, the protocol signal includes the CC1/CC2 signal of Type-C agreement and/or the DP/DM signal of fast charge agreement.
Preferably, the off-mode, the input port USB and USB outlet are without connection external equipment；
The single port input state, at least one input port USB are connected with external equipment, connect without USB outlet outer
Portion's equipment applies for fast charge voltage to the input port USB, if applying successfully, controlling charging module and entering quick charging mode, otherwise
Into normal charging mode；
The single port output state connects external equipment without the input port USB, and the connection of only one USB outlet is external
Equipment, responds the fast charge voltage request of USB outlet, if responding successfully, controls discharge module and enters fast charge and discharge mode, no
Then enter common discharge mode；
Described that state is put when filling, at least one input port USB connects external equipment, the connection of at least one USB outlet
External equipment does not apply for fast charge voltage to the input port USB, is also not responding to the fast charge voltage request of USB outlet, and control charging
Module enters normal charging mode；
The more mouthfuls of output states connect external equipment without the input port USB, and the connection of at least two USB outlets is external
Equipment, is not responding to the fast charge voltage request of USB outlet, and controls discharge module into common discharge mode；
The method of situation progress channel status switching or maintenance is accessed or removed in step S2 according to external equipment are as follows:
Under off-mode, if detecting, there is external equipment access in the input port USB, is switched to single port input state；If inspection
Measuring USB outlet has external equipment access, then is switched to single port output state；
Under single port input state, if detecting, there is external equipment access in the more than one input port USB, maintains current state；
If detecting, USB outlet has external equipment access, is switched to and puts state when filling；If detecting, there is outside in the input port USB
Equipment removes, then is switched to off-mode；
Under single port output state, if detecting, there is external equipment access in the input port USB, is switched to and puts state when filling；
If detecting, more than one delivery outlet has external equipment access, is switched to more mouthfuls of output states；If having detected external equipment
It removes, is then switched to off-mode；
It is put when filling under state, if detecting, there are external equipment in the more than one input port USB or more than one USB outlet
Access, then maintain current state；If detect that there is external equipment removal in the input port USB, more than one USB has been detected whether
Delivery outlet has external equipment access, if so, being switched to more mouthfuls of output states, is otherwise switched to single port output state；If detection
There is external equipment removal to USB outlet, then detect whether that at least one USB outlet has external equipment access, if so, dimension
Current state is held, single port input state is otherwise switched to；
Under more mouthfuls of output states, if detecting, there is external equipment access in the input port USB, is switched to and puts state when filling；
If detecting, USB outlet has external equipment removal, has detected whether that more than one USB outlet has external equipment access,
If so, maintaining current state, it is otherwise switched to single port output state.
Preferably, single port input state, which is switched to, puts state when filling, comprising the following steps:
A1. access control module control charging module enters normal charging mode；
A2. apply for common voltage to the input port USB and open leadage circuit that discharge treatment is carried out to path capacitance；
Whether the voltage for a3. detecting the input port USB drops to secure threshold, if so, executing step a4, otherwise continues to examine
It surveys；
A4. the access that the USB outlet for having accessed external equipment is connected is powered to external equipment, and is not responding to from USB
The fast charge of delivery outlet is requested.
Preferably, single port output state, which is switched to, puts state when filling, comprising the following steps:
B1. access control module closes discharge module and disconnects the access for having accessed the USB outlet of external equipment, beats
It opens module of releasing and discharge treatment is carried out to path capacitance, and postpone preset time；
B2. access control module opens charging module and conducting has accessed the input port USB and the USB output of external equipment
The access of mouth；
B3. access control module does not propose fast charge request to the input port USB, is also not responding to the fast charge from USB outlet
Request；
B4. access control module control charging module enters normal charging mode.
Preferably, single port output state is switched to more mouthfuls of output states, comprising the following steps:
C1. access control module closes discharge module and disconnects the access for having accessed the USB outlet of external equipment, beats
It opens module of releasing and discharge treatment is carried out to path capacitance, and postpone preset time；
C2. access control module opens discharge module and the access for having accessed the USB outlet of external equipment is connected；
C3. access control module receives but is not responding to the fast charge request from USB outlet；
C4. access control module control discharge module enters common discharge mode.
Preferably, when filling, the state of putting is switched to single port output state, comprising the following steps:
D1. access control module charge closing module, disconnect the access for having accessed the input port USB of external equipment and disconnected
The access for having accessed the USB outlet of external equipment is opened, and postpones preset time；
D2. access control module opens discharge module and the access for having accessed the USB outlet of external equipment is connected, and gives
The external equipment power supply accessed；
D3. fast charge request of the access control module response from USB outlet, if responding successfully, access control module control
Discharge module processed enters fast charge and discharge mode, otherwise enters common discharge mode.
Preferably, when filling, the state of putting is switched to single port input state, comprising the following steps:
E1. access control module charge closing module, disconnect the access for having accessed the input port USB of external equipment and disconnected
The access for having accessed the USB outlet of external equipment is opened, and postpones preset time；
E2. access control module opens charging module and the access for having accessed the input port USB of external equipment is connected；
E3. access control module applies for fast charge to the input port USB, if applying successfully, access control module control charging mould
Block enters quick charging mode, otherwise enters normal charging mode.
Preferably, more mouthfuls of output states are switched to single port output state, comprising the following steps:
F1. access control module closes discharge module and has accessed the channel selector of the USB outlet of external equipment, and
Postpone preset time；
F2. access control module opens discharge module and the access for having accessed the USB outlet of external equipment is connected, and gives
The external equipment power supply accessed；
F3. fast charge request of the access control module response from USB outlet, if responding successfully, access control module control
Discharge module processed enters fast charge and discharge mode, otherwise enters common discharge mode.
The invention has the benefit that switching sequence of the present invention by control access, solves how outspoken fill and moves electricity
Source not only influences fast charge experience, or even there are problems that security risk.
Detailed description of the invention
Fig. 1 show the realization schematic block circuit diagram of more mouthfuls of fast charging type portable power source circuits of the invention；
Fig. 2 show the functional block diagram of the power bus detection method of the embodiment of the present invention；
Fig. 3 show the functional block diagram of the protocol signal detection method of the embodiment of the present invention；
Fig. 4 show the channel status handoff procedure figure of the embodiment of the present invention.
Specific embodiment
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Fig. 1 is please referred to, the control method of more mouthfuls of fast charging type portable power source circuits of one kind disclosed in the present embodiment realizes circuit
Including input detection module 1, output detection module 2, access control module 3 and charge-discharge modules 4, the defeated of detection module 1 is inputted
Enter end and be connected at least two input ports USB, the input terminal of output detection module 2 is connected at least two USB outlets, access
Control module 3 is connect with the output end of the output end of input detection module 1 and output detection module 2 respectively, and charge-discharge modules 4 wrap
The charging module and discharge module connecting respectively with access control module 3 are included, each input port USB and USB outlet are distinguished
It is connect by a switch element with the charge-discharge modules 4, the control terminal of switch element is connect with access control module 3, charge and discharge
Electric module 4 is connected to ground by module 5 of releasing, and access control module 3 uses single-chip computer and its peripheral circuit.
A kind of control method of more mouthfuls of fast charging type portable power source circuits, comprising the following steps:
S1. it has detected whether external equipment access or has removed；
S2. situation is accessed or removed according to external equipment carry out channel status switching or maintenance；
Wherein, the channel status includes
Off-mode, the input port USB and USB outlet are without connection external equipment；
Single port input state, at least one input port USB are connected with external equipment, and no USB outlet connection is external to be set
It is standby, apply for fast charge voltage to the input port USB, if applying successfully, controlling charging module and entering quick charging mode, otherwise enter
Commonly (5V) charge mode；
Single port output state connects external equipment without the input port USB, only one USB outlet connects external equipment,
Respond USB outlet fast charge voltage request, if respond successfully, control discharge module enter fast charge and discharge mode, otherwise into
Enter common (5V) discharge mode；
State is put when filling, at least one input port USB connects external equipment, and the connection of at least one USB outlet is external
Equipment does not apply for fast charge voltage to the input port USB, is also not responding to the fast charge voltage request of USB outlet, and control charging module
Into common (5V) charge mode；
More mouthfuls of output states connect external equipment without the input port USB, and at least two USB outlets connect external equipment,
It is not responding to the fast charge voltage request of USB outlet, and controls discharge module and enters common (5V) discharge mode.
When single port is to when more mouthfuls of switchings, i.e. single port input state is to putting state switching, single port output state when filling to side
It fills side and puts state switching or single port output state when switch to more mouthfuls of output states, access control module execution following steps:
11) voltage is dropped to common voltage value by control charge-discharge modules；
12) it opens module of releasing and discharge treatment is carried out to path capacitance；
13) whether detection voltage drops to secure threshold, if so, opening corresponding channel selector, otherwise continues to test；
14) do not apply for fast charge voltage to the input port USB, be not responding to the fast charge voltage request of USB outlet, and control charge and discharge
Electric module enters common charge and discharge mode；
When switching to single port for more mouthfuls, i.e., state is put when filling to the switching of single port output state, when filling and puts state to list
When the switching of mouth input state or more mouthfuls of output states switch to single port output state, access control module executes following steps:
If being switched to single input mouth state,
21) output channel switch is closed；And postpone the preset time；
22) apply for fast charge voltage to the input port USB, if applying successfully, controlling charging module and entering quick charging mode,
Otherwise enter normal charging mode；
If being switched to single delivery outlet state,
31) switch of discharge module and input and output access is closed, and postpones the preset time；
32) switch for opening discharge module and output channel, so that external equipment re-powers；
33) the fast charge voltage request for responding USB outlet controls discharge module into fast charge and discharge if responding successfully
Otherwise mode enters common discharge mode.
The method for detecting whether external equipment access in step S1 or removing are as follows:
The input port USB access external equipment detection: detection the input port USB power bus VBUS voltage value whether be more than
Threshold value, or detect whether the current value of the power bus VBUS of the input port USB is more than threshold value, or the agreement of the detection input port USB
Signal whether successful connection, if any one set up, there is external equipment access in the input port USB；
The input port USB removes external equipment detection: whether the voltage value of the power bus VBUS of the detection input port USB is lower than
Whether threshold value, or the current value of power bus VBUS of the detection input port USB are lower than threshold value, or the agreement of the detection input port USB
Whether signal connects disconnection or goes offline, if any one is set up, there is external equipment removal in the input port USB；
USB outlet accesses external equipment detection: whether the voltage value for detecting the power bus VBUS of USB outlet is drawn
Whether low preset amplitude, or the DP signal or DM signal of detection USB outlet are pulled low preset amplitude, or detection USB defeated
The protocol signal of outlet whether successful connection, or detected whether external output control signal, if any one is set up, USB
Delivery outlet has external equipment access, if invalid, USB outlet does not have external equipment access；
USB outlet removes external equipment detection: whether the current value for detecting the power bus VBUS of USB outlet is lower than
Threshold value, and continue preset time, or whether the protocol signal of detection USB outlet disconnects or go offline, or has detected whether
Outside output control signal, if any one is set up, USB outlet has external equipment removal, if invalid, USB is defeated
No external equipment is exported to remove.
Wherein, protocol signal includes the CC1/CC2 signal of Type-C agreement and/or the DP/DM signal of fast charge agreement.
The present embodiment is using number of mechanisms (voltage, current detecting and the protocol signal inspection of the power bus VBUS of such as USB port
Survey) access and removal of comprehensive detection external equipment, it avoids single detection means from detecting failure under specific circumstances, is mentioned to user
It is experienced for better fast charge.
Wherein, USB outlet access external equipment detects: the voltage value for detecting the power bus VBUS of USB outlet is
The no principle for being pulled low preset amplitude is as follows:
Referring to figure 2., by the voltage value of power bus VBUS and the first reference voltage be added in respectively two of comparator it is defeated
Enter end, the power bus voltage of VBUS of USB outlet is pulled upward to higher than the first reference voltage by the first weak pull-up module
Amplitude, when USB outlet does not access external equipment, the output of comparator be it is low, when USB outlet accesses external equipment,
Due to having input capacitance and bleeder resistance inside the power bus of external equipment, the input capacitance and USB of external equipment are exported
It is shared that the output capacitance of mouth itself carries out charge, and is discharged by bleeder resistance, will lead to the electricity of power bus VBUS
Pressure is pulled low in the first reference voltage, and comparator output is got higher by low.This detection method has accessed power consumption in USB outlet
When cable, such as Type-A mouth and Lightning mouthfuls of the conversion line (Type-A to Lightning) of Apple Inc., due to
The voltage of power bus VBUS cannot be pulled upward to the amplitude higher than the first reference voltage by one weak pull-up module, will appear at this time outer
The access detection failure of portion's equipment, needs another detection method.
USB outlet accesses external equipment detection: it is default whether the DP signal or DM signal for detecting USB outlet are pulled low
Amplitude principle it is as follows:
Referring to figure 3., the ginseng of voltage DP/DM and second after the pin DP of USB outlet and pin DM being shorted together
Two input terminals that voltage is added in comparator respectively are examined, voltage DP/DM is pulled upward to higher than second by the second weak pull-up module
The amplitude of reference voltage, the output of comparator are low.When USB outlet accesses external equipment, due to the pin of external equipment
DP and pin DM all have Leaked Current of Line to Ground resistance, can be pulled down to voltage DP/DM lower than the second reference voltage, the output of comparator
It is got higher by low.
Referring to figure 4., situation is accessed or removed in step S2 according to external equipment and carry out channel status switching or maintenance
Method are as follows:
Under off-mode, if detecting, there is external equipment access in the input port USB, is switched to single port input state；If inspection
Measuring USB outlet has external equipment access, then is switched to single port output state；
Under single port input state, if detecting, there is external equipment access in the more than one input port USB, maintains current state；
If detecting, USB outlet has external equipment access, is switched to and puts state when filling；If detecting, there is outside in the input port USB
Equipment removes, then is switched to off-mode；
Under single port output state, if detecting, there is external equipment access in the input port USB, is switched to and puts state when filling；
If detecting, more than one delivery outlet has external equipment access, is switched to more mouthfuls of output states；If having detected external equipment
It removes, is then switched to off-mode；
It is put when filling under state, if detecting, there are external equipment in the more than one input port USB or more than one USB outlet
Access, then maintain current state；If detect that there is external equipment removal in the input port USB, more than one USB has been detected whether
Delivery outlet has external equipment access, if so, being switched to more mouthfuls of output states, is otherwise switched to single port output state；If detection
There is external equipment removal to USB outlet, then detect whether that at least one USB outlet has external equipment access, if so, dimension
Current state is held, single port input state is otherwise switched to；
Under more mouthfuls of output states, if detecting, there is external equipment access in the input port USB, is switched to and puts state when filling；
If detecting, USB outlet has external equipment removal, has detected whether that more than one USB outlet has external equipment access,
If so, maintaining current state, it is otherwise switched to single port output state.
Below to single port input state in step S2 to state switching is put when filling, single port output state to side fills Bian Fangzhuan
The method further explanation that state switching or single port output state switch to more mouthfuls of output states,
Single port input state, which is switched to, puts state when filling, comprising the following steps:
A1. access control module control charging module enters common (5V) charge mode；
A2. apply for common (5V) voltage to the input port USB and open leadage circuit that discharge treatment is carried out to path capacitance；
Whether the voltage for a3. detecting the input port USB drops to secure threshold, if so, executing step a4, otherwise continues to examine
It surveys；
A4. the access that the USB outlet for having accessed external equipment is connected is powered to external equipment, and is not responding to from USB
The fast charge of delivery outlet is requested.
Single port output state, which is switched to, puts state when filling, comprising the following steps:
B1. access control module closes discharge module and disconnects the access for having accessed the USB outlet of external equipment, beats
It opens module of releasing and discharge treatment is carried out to path capacitance, and postpone preset time；
B2. access control module opens charging module and conducting has accessed the input port USB and the USB output of external equipment
The access of mouth；
B3. access control module does not propose fast charge request to the input port USB, is also not responding to the fast charge from USB outlet
Request；
B4. access control module control charging module enters common (5V) charge mode.
Single port output state is switched to more mouthfuls of output states, comprising the following steps:
C1. access control module closes discharge module and disconnects the access for having accessed the USB outlet of external equipment, beats
It opens module of releasing and discharge treatment is carried out to path capacitance, and postpone preset time；
C2. access control module opens discharge module and the access for having accessed the USB outlet of external equipment is connected；
C3. access control module receives but is not responding to the fast charge request from USB outlet；
C4. access control module control discharge module enters common (5V) discharge mode.
Below to put in step S2 when filling state to the switching of single port output state, put when filling state and input shape to single port
The method further explanation that state switching or more mouthfuls of output states switch to single port output state,
When filling, the state of putting is switched to single port output state, comprising the following steps:
D1. access control module charge closing module, disconnect the access for having accessed the input port USB of external equipment and disconnected
The access for having accessed the USB outlet of external equipment is opened, and postpones preset time；
D2. access control module opens discharge module and the access for having accessed the USB outlet of external equipment is connected, and gives
The external equipment power supply accessed；
D3. fast charge request of the access control module response from USB outlet, if responding successfully, access control module control
Discharge module processed enters fast charge and discharge mode, otherwise enters common (5V) discharge mode.
When filling, the state of putting is switched to single port input state, comprising the following steps:
E1. access control module charge closing module, disconnect the access for having accessed the input port USB of external equipment and disconnected
The access for having accessed the USB outlet of external equipment is opened, and postpones preset time；
E2. access control module opens charging module and the access for having accessed the input port USB of external equipment is connected；
E3. access control module applies for fast charge to the input port USB, if applying successfully, access control module control charging mould
Block enters quick charging mode, otherwise enters common (5V) charge mode.
More mouthfuls of output states are switched to single port output state, comprising the following steps:
F1. access control module closes discharge module and has accessed the channel selector of the USB outlet of external equipment, and
Postpone preset time；
F2. access control module opens discharge module and the access for having accessed the USB outlet of external equipment is connected, and gives
The external equipment power supply accessed；
F3. fast charge request of the access control module response from USB outlet, if responding successfully, access control module control
Discharge module processed enters fast charge and discharge mode, otherwise enters common (5V) discharge mode.
The above, only presently preferred embodiments of the present invention, the invention is not limited to above embodiment, as long as
It reaches technical effect of the invention with identical means, all should belong to protection scope of the present invention.In protection model of the invention
Its technical solution and/or embodiment can have a variety of different modifications and variations in enclosing.
Claims (10)
1. a kind of more mouthfuls of fast charging type portable power source circuits, including input detection module (1), output detection module (2), access control mould
Block (3) and charge-discharge modules (4), the access control module (3) respectively with the input output end of detection module (1), institute
The output end for stating output detection module (2) is connected with the input terminal of the charge-discharge modules (4), it is characterised in that: the input
The input terminal of detection module (1) is connect at least two input ports USB, and the power bus VBUS for detecting the input port USB
The input terminal of signal and protocol signal, output detection module (2) is connect at least two USB outlets, and for detecting
Power bus VBUS signal, protocol signal and the external output control signal of USB outlet, charge-discharge modules (4) are including distinguishing
The charging module and discharge module connecting with above-mentioned access control module (3), each input port USB and USB outlet are led to respectively
A switch element is crossed to connect with the charge-discharge modules (4), the control terminal of each switch element with the access control module
(3) it connects, charge-discharge modules (4) are connected to ground by module of releasing (5), and access control module (3) is used for according to the input
Detection module (1) and the detection signal of output detection module (2) carry out channel status switching or maintenance, and fill described in control
Discharge module (4) carries out management of charging and discharging.
2. a kind of control method of more mouthfuls of fast charging type portable power source circuits, which comprises the following steps:
S1. it has detected whether external equipment access or has removed；
S2. situation is accessed or removed according to external equipment carry out channel status switching or maintenance；
Wherein channel status includes off-mode, single port input state, single port output state, puts state and more mouthfuls of outputs when filling
State；
When single port is to when more mouthfuls of switchings, i.e., to putting when filling, state switches single port input state, single port output state is to when filling
State switching or single port output state are put when switch to more mouthfuls of output states, access control module execution following steps:
11) voltage is dropped to common voltage value by control charge-discharge modules；
12) it opens module of releasing and discharge treatment is carried out to path capacitance；
13) whether detection voltage drops to secure threshold, if so, opening corresponding channel selector, otherwise continues to test；
14) do not apply for fast charge voltage to the input port USB, be not responding to the fast charge voltage request of USB outlet, and control charge and discharge mould
Block enters common charge and discharge mode；
When switching to single port for more mouthfuls, i.e., put when filling state to the switching of single port output state, to put when filling state defeated to single port
Enter state switching or more mouthfuls of output states to when the switching of single port output state, access control module executes following steps:
If being switched to single input mouth state,
21) output channel switch is closed；And postpone the preset time；
22) apply for fast charge voltage to the input port USB, if applying successfully, controlling charging module and entering quick charging mode, otherwise
Into normal charging mode；
If being switched to single delivery outlet state,
31) switch of discharge module and input and output access is closed, and postpones the preset time；
32) switch for opening discharge module and output channel, so that external equipment re-powers；
33) the fast charge voltage request for responding USB outlet controls discharge module and enters fast charge and discharge mode if responding successfully,
Otherwise enter common discharge mode.
3. the control method of more mouthfuls of fast charging type portable power source circuits as claimed in claim 2, which is characterized in that detected in step S1
The method for whether thering is external equipment to access or remove are as follows:
External equipment detection is accessed in the input port USB: whether the voltage value of the power bus VBUS of the detection input port USB is more than threshold
Value, or detect whether the current value of the power bus VBUS of the input port USB is more than threshold value, or the agreement letter of the detection input port USB
Number whether successful connection, if any one set up, there is external equipment access in the input port USB, if invalid, USB input
Mouth is accessed without external equipment；
The input port USB removes external equipment detection: whether the voltage value of the power bus VBUS of the detection input port USB is lower than threshold
Whether value, or the current value of power bus VBUS of the detection input port USB are lower than threshold value, or the agreement letter of the detection input port USB
Number whether connect disconnection or goes offline, if any one is set up, there is external equipment removal in the input port USB, if invalid,
The input port USB does not have external equipment removal；
USB outlet access external equipment detection: detect the power bus VBUS of USB outlet voltage value whether be pulled low it is pre-
If amplitude, or whether the DP signal or DM signal of detection USB outlet are pulled low preset amplitude, or detection USB outlet
Protocol signal whether successful connection, or detected whether external output control signal, if any one is set up, USB output
Mouth has external equipment access, if invalid, USB outlet does not have external equipment access；
USB outlet removes external equipment detection: whether the current value for detecting the power bus VBUS of USB outlet is lower than threshold
Value, and continue preset time, or whether the protocol signal of detection USB outlet disconnects or go offline, or has detected whether outer
Portion's output control signal, if any one is set up, USB outlet has external equipment removal, if invalid, USB output
Mouth is removed without external equipment；
Wherein, the protocol signal includes the CC1/CC2 signal of Type-C agreement and/or the DP/DM signal of fast charge agreement.
4. the control method of more mouthfuls of fast charging type portable power source circuits as claimed in claim 2, it is characterised in that:
The off-mode, the input port USB and USB outlet are without connection external equipment；
The single port input state, at least one input port USB are connected with external equipment, and no USB outlet connection is external to be set
It is standby, apply for fast charge voltage to the input port USB, if applying successfully, controlling charging module and entering quick charging mode, otherwise enter
Normal charging mode；
The single port output state connects external equipment without the input port USB, only one USB outlet connects external equipment,
Respond USB outlet fast charge voltage request, if respond successfully, control discharge module enter fast charge and discharge mode, otherwise into
Enter common discharge mode；
Described that state is put when filling, at least one input port USB connects external equipment, and the connection of at least one USB outlet is external
Equipment does not apply for fast charge voltage to the input port USB, is also not responding to the fast charge voltage request of USB outlet, and control charging module
Into normal charging mode；
The more mouthfuls of output states connect external equipment without the input port USB, and at least two USB outlets connect external equipment,
It is not responding to the fast charge voltage request of USB outlet, and controls discharge module into common discharge mode；
The method of situation progress channel status switching or maintenance is accessed or removed in step S2 according to external equipment are as follows:
Under off-mode, if detecting, there is external equipment access in the input port USB, is switched to single port input state；If detecting
USB outlet has external equipment access, then is switched to single port output state；
Under single port input state, if detecting, there is external equipment access in the more than one input port USB, maintains current state；If inspection
Measuring USB outlet has external equipment access, then is switched to and puts state when filling；If detecting, there is external equipment in the input port USB
It removes, is then switched to off-mode；
Under single port output state, if detecting, there is external equipment access in the input port USB, is switched to and puts state when filling；If inspection
Measuring more than one delivery outlet has external equipment access, then is switched to more mouthfuls of output states；If having detected external equipment removal,
Then it is switched to off-mode；
It is put when filling under state, if detecting, the more than one input port USB or more than one USB outlet have external equipment to connect
Enter, then maintains current state；If detect that there is external equipment removal in the input port USB, detect whether that more than one USB is defeated
There is external equipment access in outlet, if so, being switched to more mouthfuls of output states, is otherwise switched to single port output state；If detecting
USB outlet has external equipment removal, then detects whether that at least one USB outlet has external equipment access, if so, maintaining
Otherwise current state is switched to single port input state；
Under more mouthfuls of output states, if detecting, there is external equipment access in the input port USB, is switched to and puts state when filling；If inspection
Measuring USB outlet has external equipment removal, then has detected whether that more than one USB outlet has external equipment access, if so,
Current state is then maintained, single port output state is otherwise switched to.
5. the control method of more mouthfuls of fast charging type portable power source circuits as claimed in claim 2 or 4, which is characterized in that single port input
State, which is switched to, puts state when filling, comprising the following steps:
A1. access control module control charging module enters normal charging mode；
A2. apply for common voltage to the input port USB and open leadage circuit that discharge treatment is carried out to path capacitance；
Whether the voltage for a3. detecting the input port USB drops to secure threshold, if so, executing step a4, otherwise continues to test；
A4. the access that the USB outlet for having accessed external equipment is connected is powered to external equipment, and is not responding to export from USB
The fast charge request of mouth.
6. the control method of more mouthfuls of fast charging type portable power source circuits as claimed in claim 2 or 4, which is characterized in that single port output
State, which is switched to, puts state when filling, comprising the following steps:
B1. access control module closes discharge module and disconnects the access for having accessed the USB outlet of external equipment, and opening is let out
Amplification module carries out discharge treatment to path capacitance, and postpones preset time；
B2. access control module opens charging module and the input port USB and USB outlet for having accessed external equipment is connected
Access；
B3. access control module does not propose fast charge request to the input port USB, is also not responding to the fast charge request from USB outlet；
B4. access control module control charging module enters normal charging mode.
7. the control method of more mouthfuls of fast charging type portable power source circuits as claimed in claim 2 or 4, which is characterized in that single port output
State is switched to more mouthfuls of output states, comprising the following steps:
C1. access control module closes discharge module and disconnects the access for having accessed the USB outlet of external equipment, and opening is let out
Amplification module carries out discharge treatment to path capacitance, and postpones preset time；
C2. access control module opens discharge module and the access for having accessed the USB outlet of external equipment is connected；
C3. access control module receives but is not responding to the fast charge request from USB outlet；
C4. access control module control discharge module enters common discharge mode.
8. the control method of more mouthfuls of fast charging type portable power source circuits as claimed in claim 2 or 4, which is characterized in that put when filling
State is switched to single port output state, comprising the following steps:
D1. access control module charge closing module, disconnect accessed external equipment the input port USB access and disconnect
The access of the USB outlet of external equipment is accessed, and postpones preset time；
D2. access control module open discharge module and conducting accessed external equipment USB outlet access, to having connect
The external equipment power supply entered；
D3. fast charge request of the access control module response from USB outlet, if responding successfully, the control of access control module is put
Electric module enters fast charge and discharge mode, otherwise enters common discharge mode.
9. the control method of more mouthfuls of fast charging type portable power source circuits as claimed in claim 2 or 4, which is characterized in that put when filling
State is switched to single port input state, comprising the following steps:
E1. access control module charge closing module, disconnect accessed external equipment the input port USB access and disconnect
The access of the USB outlet of external equipment is accessed, and postpones preset time；
E2. access control module opens charging module and the access for having accessed the input port USB of external equipment is connected；
E3. access control module to the input port USB apply fast charge, if apply successfully, access control module control charging module into
Enter quick charging mode, otherwise enters normal charging mode.
10. the control method of more mouthfuls of fast charging type portable power source circuits as claimed in claim 2 or 4, which is characterized in that more mouthfuls of outputs
State is switched to single port output state, comprising the following steps:
F1. access control module closes discharge module and has accessed the channel selector of the USB outlet of external equipment, and postpones
Preset time；
F2. access control module open discharge module and conducting accessed external equipment USB outlet access, to having connect
The external equipment power supply entered；
F3. fast charge request of the access control module response from USB outlet, if responding successfully, the control of access control module is put
Electric module enters fast charge and discharge mode, otherwise enters common discharge mode.
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| CN112165140A (en) * | 2020-10-14 | 2021-01-01 | 维沃移动通信有限公司 | Charging and discharging control method and device and power supply equipment |
| CN113590074A (en) * | 2021-06-25 | 2021-11-02 | 江西创成微电子有限公司 | External audio processing device, power supply control method thereof and audio system |
| CN113541254A (en) * | 2021-07-19 | 2021-10-22 | 珠海智融科技有限公司 | Discharge circuit with prevent thermal damage function |
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