CN208797639U - Use circuit and the mobile power source of mobile power source pin multiplexing circuit, multiplexing pins - Google Patents
Use circuit and the mobile power source of mobile power source pin multiplexing circuit, multiplexing pins Download PDFInfo
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- CN208797639U CN208797639U CN201821685801.6U CN201821685801U CN208797639U CN 208797639 U CN208797639 U CN 208797639U CN 201821685801 U CN201821685801 U CN 201821685801U CN 208797639 U CN208797639 U CN 208797639U
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Abstract
The utility model provides a kind of mobile power source pin multiplexing circuit, multiplexing pins use circuit and mobile power source, it is related to the technical field of electronic circuit, its multiplexing pins for including can be connect with external equipment, and multiplexing pins include the first pin, second pin and third pin, when multiplexing pins are connect with external equipment, detection module can obtain the current working condition of external equipment by multiplexing pins, and the electric signal of current working status is sent to control module, realization is monitored by working condition of the less multiplexing pins to external equipment, the selection demand that mobile power source chip is effectively prevented by increasing configuration pin to meet client to different specifications parameters, enhance the integrated level of mobile power source chip, and reduce packaging cost.
Description
Technical field
The utility model relates to electronic circuit technology fields, more particularly, to a kind of mobile power source pin multiplexing circuit, again
Circuit and mobile power source are used with pin.
Background technique
In recent years, with using smart phone as the fast development of the portable mobile termianl of representative, the demand of mobile power source
It has measured and has increased rapidly, the function of corresponding mobile power source is also more and more abundant, and corresponding specifications parameter is also more and more.Its
In, single-chip is the mainstream of mobile power source, and a chips are just integrated with charging, electric discharge, electric quantity metering are shown, interface protocol and intelligence
It the multiple functions such as can control.
The components selection of mobile power source complete-system vendor on the market and Product Definition is irregular does not rise, for example, being singly battery
Type selecting just have 4.2V, 4.3V, 4.4V etc. a variety of, some products wish support 5V or more high input voltage output, and some produce
Product only need 5V, and also some products wish that different switching frequencies is arranged, to obtain better EMI performance or higher effect
Rate.The angle designed from chip often meets client by increasing configuration pin for the flexibility for keeping chip to apply
To the selection demand of different specifications parameters, the low increase with packaging cost of mobile power source chip integration is resulted in.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of mobile power source pin multiplexing circuits, multiplexing pins
Using circuit and mobile power source, to alleviate above-mentioned technical problem.
In a first aspect, the utility model embodiment provides a kind of mobile power source pin multiplexing circuit, wherein movement electricity
Source pin multiplex circuit includes multiplexing pins, control module, detection module, electric power driving module and multiple switch；Detect mould
Block and the input terminal of control module connect, and the output end and electric power driving module of control module are connect with multiple switch, detect
Module and multiple switch are also connect with multiplexing pins；Wherein, multiplexing pins include the first pin, second pin and third pin,
Multiple switch includes first switch group, second switch group and third switching group, and first switch group is connect with the first pin, and second opens
The connection of Guan Zuyu second pin, third switching group are connect with third pin；Multiplexing pins are used to connect with external devices；Power supply drives
Dynamic model block is used to provide electric energy for external equipment；Control module is used to control the working condition of external equipment by multiple switch；
Detection module is used to obtain the current working condition of external equipment by multiplexing pins, and the electric signal of current working status is sent out
It send to control module, is monitored with the working condition to external equipment.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the output end of control module includes multiple enabled pins, and multiple switch passes through corresponding enabled pin and control module respectively
Connection；Control module is used to export the closed state that enable signal controls corresponding switch by enabling pin, and then controls outer
The working condition of portion's equipment.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect,
In, electric power driving module includes sequentially connected power supply unit and driving unit, and driving unit includes multi-group power output pin；
First switch group, second switch group and third switching group respectively correspond wherein different group power supply output pins.
The possible embodiment of second with reference to first aspect, the utility model embodiment provide the of first aspect
Three kinds of possible embodiments, wherein driving unit includes three groups of power supply output pins；First switch group, second switch group and
Third switching group respectively corresponds wherein one group of power supply output pin；Wherein, every group of power supply output pin include power pins and
Grounding pin.
The third possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Four kinds of possible embodiments, wherein first switch group and the corresponding power supply output pin of second switch group include two power supplys
Pin and a grounding pin；The corresponding power supply output pin of third switching group includes a power pins and two grounding leads
Foot.
The 4th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Five kinds of possible embodiments, wherein be additionally provided in the access where the corresponding one of grounding pin of third switching group
Separate resistance；Wherein, separate one end of resistance and the switch connection in third switching group, separate the other end of resistance and connect
The connection of ground pin.
Second aspect, the utility model embodiment also provide a kind of use circuit of mobile power source multiplexing pins, wherein move
Dynamic power supply multiplexing pins include above-mentioned mobile power source pin multiplexing circuit using circuit, further include external equipment, wherein outer
Portion's equipment is connected to the multiplexing pins of mobile power source pin multiplexing circuit；External equipment includes at least one LED light and/or switch
Key；Wherein, the anode and cathode of LED light is respectively connected to the two of them multiplexing pins of mobile power source pin multiplexing circuit, opens
Crucial both ends are also connected to the two of them multiplexing pins of mobile power source pin multiplexing circuit.
In conjunction with second aspect, the utility model embodiment provides the first possible embodiment of second aspect,
In, when external equipment includes on & off switch, current-limiting resistance is also in series in the circuit of on & off switch.
In conjunction with the first possible embodiment of second aspect, the utility model embodiment provides the of second aspect
Two kinds of possible embodiments, wherein when external equipment includes on & off switch, mobile power source pin multiplexing circuit further includes switch
Key detection circuit, the closed state for detection switch key；
Wherein, switch key detection circuit includes voltage comparator, an input terminal and the on & off switch place of voltage comparator
Circuit connection, another input terminal of voltage comparator connect with comparison circuit, wherein comparison circuit is used to distribute voltage ratio
Compared with the comparison voltage of device.
The third aspect, the utility model embodiment also provide a kind of mobile power source, wherein mobile power source is configured with above-mentioned
Mobile power source multiplexing pins use circuit.
The utility model embodiment bring it is following the utility model has the advantages that
Use circuit and the shifting of a kind of mobile power source pin multiplexing circuit, multiplexing pins provided by the embodiment of the utility model
Dynamic power supply comprising multiplexing pins can connect with external equipment, and multiplexing pins including the first pin, second pin and
Third pin, when multiplexing pins are connect with external equipment, it is current that detection module can obtain external equipment by multiplexing pins
Working condition, and the electric signal of current working status is sent to control module, realized external by less multiplexing pins
The working condition of portion's equipment is monitored, and effectively prevents mobile power source chip by increasing configuration pin to meet client to not
The selection demand of same specifications parameter, enhances the integrated level of mobile power source chip, and reduce packaging cost.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not making the creative labor for those skilled in the art
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of mobile power source pin multiplexing circuit diagram provided by the embodiment of the utility model；
Fig. 2 is another mobile power source pin multiplexing circuit diagram provided by the embodiment of the utility model；
Fig. 3 is a kind of use circuit diagram of mobile power source multiplexing pins provided by the embodiment of the utility model；
Fig. 4 is a kind of timing diagram using circuit of mobile power source multiplexing pins provided by the embodiment of the utility model；
Fig. 5 is a kind of schematic diagram for switching key detection circuit provided by the embodiment of the utility model.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art are not making creation
Property labour under the premise of every other embodiment obtained, fall within the protection scope of the utility model.
With the fast development of global economy, continuous improvement of people's living standards, the electronic product of carried type
It is more and more, as laptop, tablet computer, mobile phone, digital camera, video camera, portable DVD player, PDA, MP3, MP4,
GPS, warming equipment, medical health equipment etc..But first wife's battery of these equipment all can be low without being able to satisfy because of battery capacity
The normal use time of equipment, mobile power source come into being.Mobile power source is a collection storage, and boosting, Charge Management is in one
Portable device, because of the feature that its capacity is big, market circulation is wide, moderate, and be widely used in digital product.
Currently, in order to meet client to the selection demand of different size parameter, it is necessary to increase on mobile power source chip
Therefore configuration pin be easy to cause the problems such as mobile power source chip integration is low and packaging cost increase, is based on this, this is practical
Use circuit and the mobile power source of a kind of mobile power source pin multiplexing circuit, multiplexing pins that new embodiment provides, to alleviate
Above-mentioned technical problem.
To draw to a kind of mobile power source disclosed in the utility model embodiment first convenient for understanding the present embodiment
Foot multiplex circuit describes in detail.
Embodiment one:
The utility model embodiment provides a kind of mobile power source pin multiplexing circuit, a kind of mobile electricity as shown in Figure 1
Source pin multiplex circuit schematic diagram, the mobile power source pin multiplexing circuit include multiplexing pins 100, control module 108, detection mould
Block 109, electric power driving module 110 and multiple switch 104；Detection module 109 is connect with the input terminal of control module 108, control
The output end and electric power driving module 110 of molding block 108 are connect with multiple switch 104, detection module 109 and multiple switch
104 also connect with multiplexing pins 100；Wherein, multiplexing pins 100 include the first pin 101, second pin 102 and third pin
103, multiple switch 104 include first switch group 105, second switch group 106 and third switching group 107, first switch group 105 with
The connection of first pin 101, second switch group 106 are connect with second pin 102, and third switching group 107 and third pin 103 connect
It connects.
Specifically, multiplexing pins with external equipment (not shown in figure 1) for connecting；Electric power driving module is used for as outside
Equipment provides electric energy；Control module is used to control the working condition of external equipment by multiple switch；Detection module is for passing through
Multiplexing pins obtain the current working condition of external equipment, and the electric signal of current working status is sent to control module, with
The working condition of external equipment is monitored.
It should be appreciated that for ease of description, multiple switch and first switch are only illustrated in Fig. 1 in block diagram form
Group, second switch group and third switching group and multiplexing pins, in actual use, above-mentioned pin and switch can be specifically
Pin and switch, the utility model embodiment is not limited this.
A kind of mobile power source pin multiplexing circuit provided by the embodiment of the utility model comprising multiplexing pins can be with
External equipment connection, and multiplexing pins include the first pin, second pin and third pin, when multiplexing pins and external equipment
When connection, detection module can obtain the current working condition of external equipment by multiplexing pins, and by current working status
Electric signal is sent to control module, and realization is monitored by working condition of the less multiplexing pins to external equipment, effectively
Mobile power source chip is avoided by increasing configuration pin come the selection demand for meeting client to different specifications parameters, is enhanced
The integrated level of mobile power source chip, and reduce packaging cost.
When specific implementation, the output end of control module generally includes multiple enabled pins, and multiple switch passes through correspondence respectively
Enabled pin connect with control module；Control module, which is used to export enable signal by enabled pin, controls corresponding switch
Closed state, and then control the working condition of external equipment.
Specifically, control module output end setting multiple enabled pins, respectively with the first switch group of multiple switch,
Second switch group is connected with third switching group, and control module sends enable signal to multiple switch by enabled pin, controls phase
It is corresponding to close the switch to achieve the purpose that control external equipment.
Further, in order to make it easy to understand, on the basis of Fig. 1, the utility model additionally provides another mobile power source and draws
Foot multiplex circuit, another mobile power source pin multiplexing circuit diagram as shown in Figure 2, wherein schematic diagram shown in Fig. 2
In, multiple enabled pin CTL_S1, CTL_S2 ... CTL_S9 of the output end setting of above-mentioned control module are indicated, above-mentioned multiple
Switch switch 1, switch 2 ... switch 9 indicate.
In actual use, above-mentioned electric power driving module 110 generally includes sequentially connected power supply unit 201 and driving is single
Member 202, driving unit includes multi-group power output pin；Above-mentioned first switch group, second switch group and third switching group difference
Corresponding wherein different group power supply output pins.
Wherein, in schematic diagram shown in Fig. 2, above-mentioned driving unit includes three groups of power supply output pins；Above-mentioned first opens
Pass group, second switch group and third switching group respectively correspond wherein one group of power supply output pin；Wherein, every group of power supply output pin
It include power pins and grounding pin.Further, in schematic diagram shown in Fig. 2, above-mentioned first switch group include switch 1,
Switch 2 and switch 3, second switch group include switch 4, switch 5 and switch 6, and third switching group includes switch 7, switch 8 and switch
9。
When specific implementation, above-mentioned first switch group and the corresponding power supply output pin of second switch group include that two power supplys draw
Foot and a grounding pin；The corresponding power supply output pin of third switching group includes a power pins and two grounding pins.
Further, partition electricity is additionally provided in the access where the corresponding one of grounding pin of third switching group
Resistance；Wherein, separate one end of resistance and a switch in third switching group connects, separate the other end and grounding pin of resistance
Connection.
Specifically as shown in Fig. 2, in mobile power source pin multiplexing circuit diagram shown in Fig. 2, what multiplexing pins included
First pin is PIN1, second pin is PIN2 and third pin is PIN3；The corresponding enabled pin of first switch group is CTL_
S1, CTL_S2 and CTL_S3, the corresponding enabled pin of second switch group are CTL_S4, CTL_S5 and CTL_S6, third switching group
Corresponding enabled pin is CTL_S7, CTL_S8 and CTL_S9；Wherein, the corresponding switch of CTL_S1, CTL_S4 and CTL_S7 is logical
Power supply V1 connection in power pins and power supply unit in over-drive unit, CTL_S3 and the corresponding switch of CTL_S6 pass through drive
Power supply V2 connection in power pins and power supply unit in moving cell, CTL_S2, CTL_S5, CTL_S8 and CTL_S9 are corresponding
Switch is connected to ground by the grounding pin in driving unit, wherein above-mentioned partition is provided in the access where CTL_S9
One end of resistance R2, partition resistance R2 are connect with CTL_S9, and the other end is connected to ground by the grounding pin in driving unit.
On the basis of the above embodiments, the utility model embodiment provides a kind of use of mobile power source multiplexing pins
Circuit, it further includes that outside is set which, which includes above-mentioned mobile power source pin multiplexing circuit using circuit,
Standby, external equipment is connected to the multiplexing pins of mobile power source pin multiplexing circuit；External equipment include at least one LED light and/
Or on & off switch；Wherein, the two of them multiplexing that the anode and cathode of LED light is respectively connected to mobile power source pin multiplexing circuit is drawn
Foot, the both ends of on & off switch are also connected to the two of them multiplexing pins of mobile power source pin multiplexing circuit.
In order to make it easy to understand, Fig. 3 shows a kind of mobile electricity by taking mobile power source pin multiplexing circuit shown in Fig. 2 as an example
The use circuit diagram of source multiplexing pins, wherein in the use circuit of mobile power source multiplexing pins as shown in Figure 3, with
External equipment 302 for 5 LED lamps and an on & off switch comprising being illustrated.
In actual use, when external equipment includes on & off switch, current-limiting resistance is also in series in the circuit of on & off switch, such as
Current-limiting resistance R1 shown in Fig. 3.
Specifically, LED1, LED2, LED3 and LED4 are usually electricity display lamp in 5 LED lamps, and LED5 is usually to shine
Bright lamp, wherein LED1 anode is connect with PIN1, and cathode is connect with PIN2, and LED2 anode is connect with PIN2, and cathode and PIN1 connect
It connects, LED3 anode is connect with PIN2, and cathode is connect with PIN3, and LED4 anode is connect with PIN3, and cathode is connect with PIN2, and LED5 is just
Pole and PIN3, cathode are connect with PIN1；The concatenated current-limiting resistance R1 of on & off switch KEY, is connected to PIN1 and PIN3, wherein series connection
The purpose of current-limiting resistance R1 be in order to which short circuit when on & off switch KEY is pressed, does not occur and ensures that other LED light can normally be shown
Show.
Further, in the present embodiment, on & off switch KEY can also be changed into LED6, wherein LED6 anode and PIN1 connect
It connects, cathode is connect with PIN3, and when specifically used, the concrete form of said external equipment can be set according to actual use situation
It sets, the present embodiment is to the quantity of LED light and on & off switch without limiting.
Circuit diagram is used based on mobile power source multiplexing pins shown in Fig. 3.It is multiple that Fig. 4 shows a kind of mobile power source
With the timing diagram using circuit of pin, in general, mobile power source multiplexing pins provided in this embodiment are with week using circuit
Phase property mode works, it is assumed that period T, then, above-mentioned LED is shown and on & off switch KEY detection is every within this period
A display time interval is T/6, is carried out in conjunction with shown in Fig. 3 and Fig. 4 to the course of work using circuit of mobile power source multiplexing pins detailed
Describe in detail bright: within the T1 period, CTL_S1 and CTL_S5 is corresponding closes the switch for control module control, other switches disconnections, this
When LED1 lamp it is bright；Within the T2 period, CTL_S2 and CTL_S4 is corresponding closes the switch for control module control, and other switches are disconnected
It opens, at this moment LED2 lamp is bright；Within the T3 period, CTL_S4 and CTL_S8 is corresponding closes the switch for control module control, Qi Takai
Shutdown is opened, and at this moment LED3 lamp is bright；Within the T4 period, CTL_S5 and CTL_S7 is corresponding closes the switch for control module control,
It, which is switched, disconnects, and at this moment LED4 lamp is bright；Within the T5 period, the corresponding switch of control module control CTL_S2 and CTL_S7 is closed
It closes, other switches disconnect, and at this moment LED5 lamp is bright；Within the T6 period, CTL_S3 and CTL_S9 is corresponding opens for control module control
It closes and closes, whether other switches disconnect, be pressed for detection switch key KEY.Due to the visual persistence effect of human eye, when each
T1, T2, T3, T4 and T5 period in cycle T, five LED lamps be all it is bright, the present embodiment shows LED in period of time T
Sequence on & off switch KEY detection is without limiting.
When specific implementation, when external equipment includes on & off switch, mobile power source pin multiplexing circuit further includes on & off switch inspection
Slowdown monitoring circuit, the closed state for detection switch key；Wherein, switch key detection circuit includes voltage comparator, voltage comparator
An input terminal connect with the circuit where on & off switch, another input terminal of voltage comparator is connect with comparison circuit,
In, comparison circuit is used to distribute the comparison voltage of voltage comparator.
Fig. 5 shows a kind of schematic diagram for switching key detection circuit, in conjunction with Fig. 3 and Fig. 5 to the detection process of on & off switch KEY
It is described in detail, as shown in figure 5, in the present embodiment, being connect with the anode of voltage comparator with PIN3, cathode is electric compared with
Road connection for be illustrated, wherein in switch key detection circuit shown in Fig. 5, comparison circuit include resistance R3, R4 and
R5, specific connection type are as shown in Figure 5, wherein and the comparison voltage that comparison circuit distributes to the negative terminal of voltage comparator is V3,
The voltage at the end PIN1 is V2, wherein switch S1 and S2 in Fig. 5 are usually closed state, and the voltage value of V2 is higher than the voltage of V3
Value.When on & off switch KEY is pressed, the cathode voltage value of voltage comparator is V2, and negative battery voltage V3, voltage comparator is defeated at this time
A positive value out, detection module judge that on & off switch KEY is pressed；When on & off switch KEY is not pressed, voltage comparator is just
Pole tension value is 0, negative battery voltage V3, and voltage comparator exports a negative value at this time, and detection module judges that on & off switch KEY does not have
It is pressed.Detection module can also detect whether LED light works normally, and be illustrated by taking LED1 as an example, the electricity of LED1 anode
Pressure value is V1, and the voltage value of cathode is 0, and when LED1 is worked normally, the voltage for the PIN2 that detection module detects is above 0
Value, when LED1 damage, the voltage for the PIN2 that detection module detects is equal to 0 value, what detection module can will test
The working condition electric signal of current LED light is sent to control module, and control module can be according to the work of the current LED light of upload
State electric signal acts the switch of control LED operation state.
Mobile power source multiplexing pins provided by the embodiment of the utility model use circuit, with shifting provided by the above embodiment
Dynamic power pins multiplex circuit technical characteristic having the same reaches identical skill so also can solve identical technical problem
Art effect.
Further, the utility model embodiment additionally provides a kind of mobile power source, which is configured with above-mentioned shifting
Dynamic power supply multiplexing pins use circuit.
It is apparent to those skilled in the art that for convenience and simplicity of description, the multiplexing of foregoing description
The specific work process using circuit and mobile power source of pin can refer to aforementioned mobile power source pin multiplexing circuit embodiments
In corresponding process, details are not described herein.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.To those skilled in the art, above-mentioned term can be understood in this reality with concrete condition
With the concrete meaning in novel.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that above embodiments, only specific embodiment of the present utility model, to illustrate that this is practical
Novel technical solution, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned implementation
The utility model is described in detail in example, it should be understood by those skilled in the art that: any skill for being familiar with the art
Art personnel within the technical scope disclosed by the utility model, can still carry out technical solution documented by previous embodiment
Modification can readily occur in variation or equivalent replacement of some of the technical features；And these are modified, change or replace
It changes, the spirit and scope for the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution should all cover
It is within the protection scope of the utility model.Therefore, the protection scope of the utility model should be with scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of mobile power source pin multiplexing circuit, which is characterized in that the mobile power source pin multiplexing circuit includes that multiplexing is drawn
Foot, control module, detection module, electric power driving module and multiple switch；The detection module is defeated with the control module
Enter end connection, the output end of the control module and the electric power driving module are connected with multiple switches, the detection
Module and multiple switches are also connect with the multiplexing pins；
Wherein, the multiplexing pins include the first pin, second pin and third pin, and multiple switches include first switch
Group, second switch group and third switching group, the first switch group are connect with first pin, the second switch group and institute
Second pin connection is stated, the third switching group is connect with the third pin；
The multiplexing pins are used to connect with external devices；
The electric power driving module is used to provide electric energy for the external equipment；
The control module is used for the working condition by external equipment described in multiple switch controls；
The detection module is used to obtain the current working condition of the external equipment by the multiplexing pins, and works as by described in
The electric signal of preceding working condition is sent to the control module, is monitored with the working condition to the external equipment.
2. mobile power source pin multiplexing circuit according to claim 1, which is characterized in that the output end of the control module
Including multiple enabled pins, multiple switches are connect by the corresponding enabled pin with the control module respectively；
The control module is used to export the closed state that enable signal controls the corresponding switch by the enabled pin,
And then control the working condition of the external equipment.
3. mobile power source pin multiplexing circuit according to claim 1, which is characterized in that the electric power driving module includes
Sequentially connected power supply unit and driving unit, the driving unit include multi-group power output pin；
The first switch group, the second switch group and the third switching group respectively correspond wherein different group power supply outputs and draw
Foot.
4. mobile power source pin multiplexing circuit according to claim 3, which is characterized in that the driving unit includes three groups
Power supply output pin；
The first switch group, the second switch group and the third switching group respectively correspond wherein one group of power supply output and draw
Foot；
Wherein, power supply output pin described in every group includes power pins and grounding pin.
5. mobile power source pin multiplexing circuit according to claim 4, which is characterized in that the first switch group and described
The corresponding power supply output pin of second switch group includes two power pins and a grounding pin；
The corresponding power supply output pin of the third switching group includes a power pins and two grounding pins.
6. mobile power source pin multiplexing circuit according to claim 5, which is characterized in that the third switching group is corresponding
Partition resistance is additionally provided in access where one of grounding pin；
Wherein, one end of the partition resistance and a switch in the third switching group connect, described to separate the another of resistance
One end is connect with the grounding pin.
7. a kind of mobile power source multiplexing pins use circuit, which is characterized in that the mobile power source multiplexing pins use electricity
Road includes the described in any item mobile power source pin multiplexing circuits of claim 1~6, further includes external equipment, wherein described outer
Portion's equipment is connected to the multiplexing pins of the mobile power source pin multiplexing circuit；
The external equipment includes at least one LED light and/or on & off switch；
Wherein, the anode and cathode of the LED light is respectively connected to the two of them institute of the mobile power source pin multiplexing circuit
Multiplexing pins are stated, the both ends of the on & off switch are also connected to multiplexing described in the two of them of the mobile power source pin multiplexing circuit
Pin.
8. mobile power source multiplexing pins according to claim 7 use circuit, which is characterized in that when the external equipment
When including the on & off switch, current-limiting resistance is also in series in the circuit of the on & off switch.
9. mobile power source multiplexing pins according to claim 8 use circuit, which is characterized in that when the external equipment
When including the on & off switch, the mobile power source pin multiplexing circuit further includes switch key detection circuit, for detecting described open
Crucial closed state；
Wherein, the switch key detection circuit includes voltage comparator, and an input terminal of the voltage comparator is opened with described
The circuit of key point connects, another input terminal of the voltage comparator is connect with comparison circuit, wherein the comparison is electric
Road is used to distribute the comparison voltage of the voltage comparator.
10. a kind of mobile power source, which is characterized in that the mobile power source is configured with the described in any item movements of claim 7~9
Power supply multiplexing pins use circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821685801.6U CN208797639U (en) | 2018-10-17 | 2018-10-17 | Use circuit and the mobile power source of mobile power source pin multiplexing circuit, multiplexing pins |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821685801.6U CN208797639U (en) | 2018-10-17 | 2018-10-17 | Use circuit and the mobile power source of mobile power source pin multiplexing circuit, multiplexing pins |
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| CN208797639U true CN208797639U (en) | 2019-04-26 |
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| CN112531818A (en) * | 2020-11-20 | 2021-03-19 | 芜湖华沅微电子有限公司 | Ultra-compact four-string lithium battery protection chip and peripheral circuit |
| CN113419164A (en) * | 2021-08-24 | 2021-09-21 | 深圳英集芯科技股份有限公司 | Chip test and pin multiplexing unit and chip test and pin multiplexing method |
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| CN114312355A (en) * | 2020-09-29 | 2022-04-12 | 通用汽车环球科技运作有限责任公司 | Electric powertrain having a battery system with a tri-state high voltage contactor |
| CN114312355B (en) * | 2020-09-29 | 2024-02-02 | 通用汽车环球科技运作有限责任公司 | Electric drive train having a battery system with tri-state high voltage contactors |
| CN112531818A (en) * | 2020-11-20 | 2021-03-19 | 芜湖华沅微电子有限公司 | Ultra-compact four-string lithium battery protection chip and peripheral circuit |
| CN112531818B (en) * | 2020-11-20 | 2023-06-16 | 芜湖华沅微电子有限公司 | Ultra-compact four-string lithium battery protection chip and peripheral circuit |
| CN113419164A (en) * | 2021-08-24 | 2021-09-21 | 深圳英集芯科技股份有限公司 | Chip test and pin multiplexing unit and chip test and pin multiplexing method |
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Address after: 518000 1701, building 1, Shenzhen new generation industrial park, 136 Zhongkang Road, Meidu community, Meilin street, Futian District, Shenzhen City, Guangdong Province Patentee after: Fuman microelectronics Group Co.,Ltd. Address before: 518000 18 / F, west area, times science and technology building, nongyuan Road, Xiangmihu street, Futian District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN FUMAN ELECTRONIC GROUP Co.,Ltd. |