CN205811572U - Feedback control circuit and electronic equipment - Google Patents
Feedback control circuit and electronic equipment Download PDFInfo
- Publication number
- CN205811572U CN205811572U CN201620502060.8U CN201620502060U CN205811572U CN 205811572 U CN205811572 U CN 205811572U CN 201620502060 U CN201620502060 U CN 201620502060U CN 205811572 U CN205811572 U CN 205811572U
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- pin
- output connecting
- connecting pin
- control circuit
- switch element
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
This utility model relates to electronic technology field, discloses a kind of feedback control circuit and electronic equipment.In this utility model, the first input pin of switch element, the second input pin are connected to wired charging chip, the output connecting pin of wireless charging chip；The output connecting pin of switch element is connected to the positive pole of rechargeable battery；The input pin of AC-DC converter is for being connected to the temperature sense pin of rechargeable battery；The output connecting pin of AC-DC converter is connected to the input pin of ON-OFF control circuit；The output connecting pin of ON-OFF control circuit is connected to the control pin of switch element；Wherein, ON-OFF control circuit, according to the feedback temperature of the rechargeable battery received, controls output connecting pin and the first input pin, the connection status of the second input pin of switch element.Pass through foregoing circuit, it is achieved that wired, wireless charging mode is two-in-one so that electronic equipment can be according to the temperature of rechargeable battery, and Based Intelligent Control charging modes improves charge efficiency, and evaded problem of temperature rise.
Description
Technical field
This utility model relates to electronic technology field, particularly to feedback control circuit and electronic equipment.
Background technology
Along with the development of science and technology, the electronic equipment with smart mobile phone as representative becomes people's daily life
In an indispensable part.
Under prior art, smart mobile phone usually uses the wired charging modes of traditional USB to be charged,
Meanwhile, increasing smart mobile phone is configured with wireless charging function.But, present intelligent hands
Wireless charging system and wired charging system that machine is had are two independent cover systems, and cannot realize altogether
With, it is impossible to the advantage with two kinds of charge modes.
Utility model content
The purpose of this utility model is to provide a kind of feedback control circuit and electronic equipment, it is achieved that wired
Charging and wireless charging function are two-in-one so that electronic equipment can be according to the temperature of rechargeable battery, intelligence
Charging modes can be controlled, improve charge efficiency, and evaded problem of temperature rise.
For solving above-mentioned technical problem, embodiment of the present utility model provides a kind of feedback control electricity
Road, is applied to the electronic equipment of rechargeable battery, and this feedback control circuit includes: wired charging chip,
Wireless charging chip, ON-OFF control circuit, switch element and AC-DC converter；Switch element
The first input pin be connected to the output connecting pin of wired charging chip；Second input pin of switch element
It is connected to the output connecting pin of wireless charging chip；The output connecting pin of switch element is connected to rechargeable battery
Positive pole；The input pin of AC-DC converter is for being connected to the temperature sense pin of rechargeable battery；
The output connecting pin of AC-DC converter is connected to the input pin of ON-OFF control circuit；ON-OFF control circuit
Output connecting pin be connected to the control pin of switch element；Wherein, ON-OFF control circuit is according to receiving
The feedback temperature of rechargeable battery, controls the output connecting pin of switch element and inputs pin, second defeated with first
Enter the connection status of pin.
Of the present utility model embodiment further provides a kind of electronic equipment, electronic equipment includes: chargeable
Battery and above-mentioned feedback control circuit；Rechargeable battery includes that temperature element, temperature element have temperature
Degree sensing pin；The positive pole of rechargeable battery is connected to the output connecting pin of switch element；Rechargeable battery
Temperature sense pin is connected to the input pin of AC-DC converter.
This utility model embodiment in terms of existing technologies, due to the input of AC-DC converter
Pin is connected to the temperature sense pin of rechargeable battery, and the output connecting pin of AC-DC converter is connected to
The input pin of ON-OFF control circuit, the output connecting pin of ON-OFF control circuit is connected to the control of switch element
Pin, therefore, ON-OFF control circuit is able to receive that AC-DC converter gets rechargeable battery
Feedback temperature, and according to feedback temperature control switch element output connecting pin with first input pin, second
The connection status of input pin.It is connected to due to first, second input pin of switch element again
Line, the output connecting pin of wireless charging chip, the output connecting pin of switch element is just being connected to rechargeable battery
Pole, so being connected with first, second input pin respectively by output connecting pin, i.e. may utilize wired or wireless
Charging modes be rechargeable battery charging；Output connecting pin is connected with first, second input pin simultaneously,
I.e. may utilize the two-in-one charging modes of wire and wireless is rechargeable battery charging, it is achieved thereby that wired,
Wireless charging mode is two-in-one so that electronic equipment can be according to the temperature of rechargeable battery, Based Intelligent Control
Charging modes, improves charge efficiency, and has evaded problem of temperature rise.
It addition, ON-OFF control circuit includes processor；Processor includes the first output connecting pin, the second output
Pin and input pin；And first, second output connecting pin of processor is all connected to the control of switch element
Pin；The input pin of processor is connected to the output connecting pin of AC-DC converter.
It addition, ON-OFF control circuit includes comparator bank；Comparator bank include the first output connecting pin, second
Output connecting pin and input pin；And first, second output connecting pin of comparator bank is all connected to switch element
Control pin；The input pin of comparator is connected to the output connecting pin of AC-DC converter.Switch control
Circuit processed includes comparator bank, provides another embodiment for this utility model, thus is conducive to this
The popularization of utility model.
It addition, switch element is double-pole single throw.Double-pole single throw makes present embodiment the most permissible
Only select wired charging modes or wireless charging mode, it is also possible to select the charging side that wire and wireless is two-in-one
Formula, and, it is possible to use this switch element to greatest extent, do not result in waste.
It addition, temperature element is negative tempperature coefficient thermistor.Negative tempperature coefficient thermistor volume is little,
Can simply be installed in rechargeable battery, convenient use.
It addition, electronic equipment also includes the first connection interface；First connects interface is connected to wired charging core
Sheet.
It addition, the first connection interface is USB interface.
It addition, the minus earth of rechargeable battery.
It addition, electronic equipment is mobile terminal.
Accompanying drawing explanation
Fig. 1 is the circuit diagram according to this utility model the first embodiment feedback circuit；
Fig. 2 is the concrete schematic diagram of the feedback circuit (switch controller includes processor) in Fig. 1；
Fig. 3 is that (switch controller includes comparing the feedback circuit according to this utility model the second embodiment
Device) concrete schematic diagram.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing pair
Each embodiment of the present utility model is explained in detail.But, those of ordinary skill in the art can
To understand, in each embodiment of this utility model, in order to make reader be more fully understood that, the application proposes
Many ins and outs.But, even if there is no these ins and outs and kind based on following embodiment
Plant and change and modifications, it is also possible to realize the application each claim technical scheme required for protection.
First embodiment of the present utility model relates to a kind of feedback control circuit, is applied to include chargeable
The electronic equipment of battery.As it is shown in figure 1, this feedback control circuit includes: wired charging chip, wireless
Charging chip, ON-OFF control circuit, switch element and AC-DC converter.
First input pin A1 of switch element is connected to the output connecting pin B of wired charging chip；Switch
Second input pin A2 of unit is connected to the output connecting pin C of wireless charging chip；Switch element defeated
Go out pin A3 be connected to the positive pole of rechargeable battery+；The input pin D1 of AC-DC converter is used for
It is connected to the temperature sense pin E of rechargeable battery；The output connecting pin D2 of AC-DC converter connects
Input pin F1 in ON-OFF control circuit；It is single that the output connecting pin F2 of ON-OFF control circuit is connected to switch
The control pin A4 of unit.Wherein, switch element is double-pole single throw, but, at other embodiments
In, the type of switch element is not limited to this, such as, switch element can be multiple pole single throw switch, this
Place does not repeats.
As in figure 2 it is shown, the ON-OFF control circuit in present embodiment can include processor.Processor bag
Including the first output connecting pin F21, the second output connecting pin F22 and input pin F11, accordingly, switch is single
The control pin A4 of unit includes that the first control pin A41 and second controls pin A42, and processor
First output connecting pin F21, the second output connecting pin F22 are connected to the first control pin of switch element
A41, the second control pin A42, the input pin F11 of processor are connected to AC-DC converter
Output connecting pin D2.
For present embodiment, the feedback temperature of AC-DC converter real-time reception rechargeable battery,
And the feedback temperature sensed is passed to processor, processor is anti-according to the rechargeable battery received
Feedback temperature, controls output connecting pin and the first input pin, the connection shape of the second input pin of switch element
State, i.e. be chosen as the charging modes of rechargeable battery charging.Wherein, the temperature sense of rechargeable battery
Pin can be by level to characterize temperature, say, that AC-DC converter is from temperature sense pin
Place obtains the level signal (feedback temperature) of the temperature information for representing rechargeable battery, and by electricity
Ordinary mail number judges the size of the real time temperature of rechargeable battery.
Such as, if processor detect feedback temperature be in the first temperature range (such as, first
Temperature range be (0 DEG C, 45 DEG C] time, processor controls the first output connecting pin F21 and the second output connecting pin
The level of F22 draw high (such as, the level at the first output connecting pin F21 of processor is 1, process
The level of the second output connecting pin F22 of device is 1) so that the first input pin A1 of switch element, the
Two input pin A2 and output connecting pin A3 connect, and therefore, it can carry out wired, wireless charging simultaneously；
If processor detect feedback temperature be in the second temperature range (such as, the second temperature range is
(45 DEG C, 60 DEG C] time, processor control the level of the first output connecting pin F21 draw high (such as, first
Level at output connecting pin F21 is 1), and the level of the second output connecting pin F22 controlling processor draws
Low (such as, the level at the second output connecting pin F22 is 0) so that the first input of switch element
Pin A1 and output connecting pin A3 connects, and the second input pin A2 and output connecting pin A3 disconnects, thus
Realize only utilizing the mode of wired charging to be charged, but in actual application, processor can also select
The level controlling the first output connecting pin F21 drag down (such as, the level at the first output connecting pin F21 is
0), and the level of the second output connecting pin F22 controlling processor draw high (such as, the second output connects
Level at foot F22 is 1) so that the first input pin A1 and output connecting pin A3 of switch element breaks
Opening, the second input pin A2 and output connecting pin A3 connects, thus realizes only utilizing the mode of wireless charging
It is charged, does not repeats；If processor is detecting that feedback temperature is in the 3rd temperature range (ratio
As said, when the second temperature range is (60 DEG C ,+∞ DEG C), processor control the first output connecting pin F21,
The level of the second output connecting pin F22 drag down (such as, the level at the first output connecting pin F21 is 0,
The level of the second output connecting pin F22 is 0) so that the first input pin A1 of switch element, second defeated
Enter pin A2 all to disconnect with output connecting pin A3, so that wired charge function and wireless charging function all close
Close.
But, in actual applications, the charging of the division numbers of each temperature range, temperature range and correspondence
Mode is not limited to this, does not repeats.
In terms of existing technologies, ON-OFF control circuit is according to the feedback temperature of the rechargeable battery received
Degree, controls output connecting pin and the first input pin, the connection status of the second input pin of switch element,
Switch flexibly between the charging modes that wired charging, wireless charging or wire and wireless are two-in-one, carry
Rise charge efficiency, and evade problem of temperature rise.
Second embodiment of the present utility model relates to a kind of feedback control circuit.As it is shown on figure 3, second
Embodiment and the first embodiment are roughly the same, are: in the first embodiment in place of the main distinction,
ON-OFF control circuit includes processor.And in this utility model the second embodiment, ON-OFF control circuit
Including comparator bank.
In present embodiment, comparator bank include the first output connecting pin F23, the second output connecting pin F24 and
Input pin F12；Accordingly, the control pin A4 of switch element include the first control pin A41 and
Second controls pin A42, and the first output connecting pin F23 of comparator bank, the second output connecting pin F24 divide
It is not connected to the first control pin A41 of switch element, the second control pin A42；Comparator bank defeated
Enter pin F12 and be connected to the output connecting pin D2 of AC-DC converter.
Specifically, the comparator bank in present embodiment includes the first comparator and the second comparator, the
The positive pole of one comparator receives the first reference voltage (feedback temperature of representative is 45 DEG C), and negative pole receives generation
The voltage of table rechargeable battery real time temperature, the positive pole of the second comparator receives the second reference voltage and (represents
Feedback temperature be 60 DEG C), negative pole receives and represents the level of rechargeable battery real time temperature, say, that
The negative pole of the first comparator and the second comparator is equivalent to the input pin F12 of comparator bank, and first compares
Device, the output connecting pin of the second comparator be respectively equivalent to the first output connecting pin F23 of comparator bank, second
Output connecting pin F24.Wherein, the feedback temperature that the size of level represents with it is proportional.
If the feedback temperature representated by voltage that the first comparator, the second comparator receive is in first
Temperature range (0 DEG C, 45 DEG C], the first comparator, the second comparator judge that this voltage is less than first respectively
Reference voltage, the second reference voltage, i.e. the first output connecting pin F23 of comparator bank, the second output connect
Level at foot F24 is 1, and comparator bank controls the first input pin A1 of switch element, second defeated
Entering pin A2 and output connecting pin A3 to connect, therefore, rechargeable battery can carry out wired, wireless simultaneously
Charging；If the feedback temperature representated by voltage that the first comparator, the second comparator receive is in
One temperature range (45 DEG C, 60 DEG C], the first comparator judges that this voltage is more than the first reference voltage, the
Two comparators judge that voltage is less than the second reference voltage, i.e. the first output connecting pin F23 of comparator bank
Level be 0, the level at the second output connecting pin F24 is 1, and comparator bank controls the of switch element
One input pin A1 and output connecting pin A3 connects, and the second input pin A2 and output connecting pin A3 disconnects,
Therefore, rechargeable battery only utilizes wired charging modes to be charged；But, in actual application, compare
Device group can also select the first input pin A1 and the output connecting pin A3 controlling switch element to disconnect, and second
Input pin A2 and output connecting pin A3 connects, thus realizes only utilizing the mode of wireless charging to be charged,
Do not repeat；If the feedback temperature representated by voltage that the first comparator, the second comparator receive
Be in the first temperature range [60 DEG C ,+∞), this electricity judged respectively by the first comparator, the second comparator
Pressure is more than the first reference voltage, the second reference voltage, i.e. the first output connecting pin F23 of comparator bank,
The level of the second output connecting pin F24 is 0, comparator bank control switch element the first input pin A1,
Second input pin A2 all with output connecting pin A3 disconnection, therefore, so that wired charge function and wireless
Charge function is turned off.
Present embodiment, relative to the first embodiment, provides another kind of embodiment party for this utility model
Formula, thus popularization the most of the present utility model.
This utility model the 3rd embodiment relates to a kind of electronic equipment, the electronic equipment in present embodiment
It can be the mobile terminal such as smart mobile phone, panel computer.See shown in Fig. 1 to Fig. 3, electronic equipment bag
Include: rechargeable battery, first connect in interface and the first embodiment or the second embodiment anti-
Feedback control circuit.
Rechargeable battery includes that temperature element, temperature element have temperature sense pin, wherein, this thermometric
The temperature sense pin E of the i.e. rechargeable battery of temperature sense pin of element；Thermometric in present embodiment
Element can be negative tempperature coefficient thermistor, but, in other embodiments, it is not limited to this, surveys
Temperature element can also be thermometric chip, does not repeats.The positive pole of rechargeable battery+be connected to switch
The output connecting pin A3 of unit；The minus earth of rechargeable battery；The temperature sense pin of rechargeable battery
E is connected to the input pin D1 of AC-DC converter.
First connects interface is connected to wired charging chip, in order to carrying out wired charging, wherein, first even
Connection interface is USB interface；Wireless charging chip can enter by being connected with extraneous wireless charging base station
Row wireless charging.
It will be understood by those skilled in the art that the respective embodiments described above be realize of the present utility model
Specific embodiment, and in actual applications, can to it, various changes can be made in the form and details, and
Without departing from spirit and scope of the present utility model.
Claims (10)
1. a feedback control circuit, it is characterised in that be applied to include that the electronics of rechargeable battery sets
Standby, described feedback control circuit includes: wired charging chip, wireless charging chip, ON-OFF control circuit,
Switch element and AC-DC converter；
First input pin of described switch element is connected to the output connecting pin of described wired charging chip；Institute
The the second input pin stating switch element is connected to the output connecting pin of described wireless charging chip；Described switch
The output connecting pin of unit is connected to the positive pole of described rechargeable battery；
The input pin of described AC-DC converter is for being connected to the temperature sense of described rechargeable battery
Answer pin；The output connecting pin of described AC-DC converter is connected to the input of described ON-OFF control circuit and connects
Foot；The output connecting pin of described ON-OFF control circuit is connected to the control pin of described switch element；
Wherein, described ON-OFF control circuit is according to the feedback temperature of the described rechargeable battery received, control
Make output connecting pin and the first input pin, the connection status of the second input pin of described switch element.
Feedback control circuit the most according to claim 1, it is characterised in that described on-off control
Circuit includes processor；
Described processor includes the first output connecting pin, the second output connecting pin and input pin；And described process
First, second output connecting pin of device is all connected to the control pin of described switch element；Described processor
Input pin is connected to the output connecting pin of described AC-DC converter.
Feedback control circuit the most according to claim 1, it is characterised in that described on-off control
Circuit includes comparator bank；
Described comparator bank includes the first output connecting pin, the second output connecting pin and input pin；And described ratio
First, second output connecting pin of relatively device group is all connected to the control pin of described switch element；Described comparison
The input pin of device group is connected to the output connecting pin of described AC-DC converter.
Feedback control circuit the most according to claim 1, it is characterised in that described switch element
For double-pole single throw.
5. an electronic equipment；It is characterized in that, including: rechargeable battery and claim 1
To the feedback control circuit according to any one of 4；
Described rechargeable battery includes that temperature element, described temperature element have described temperature sense pin；
The positive pole of described rechargeable battery is connected to the output connecting pin of described switch element；Described chargeable electricity
The temperature sense pin in pond is connected to the input pin of described AC-DC converter.
Electronic equipment the most according to claim 5, it is characterised in that described temperature element is negative
Temperature coefficient thermistor.
Electronic equipment the most according to claim 5, it is characterised in that described electronic equipment also wraps
Include the first connection interface；Described first connects interface is connected to described wired charging chip.
Electronic equipment the most according to claim 7, it is characterised in that described first connects interface
For USB interface.
Electronic equipment the most according to claim 5, it is characterised in that described rechargeable battery
Minus earth.
Electronic equipment the most according to claim 5, it is characterised in that described electronic equipment is for moving
Dynamic terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620502060.8U CN205811572U (en) | 2016-05-27 | 2016-05-27 | Feedback control circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620502060.8U CN205811572U (en) | 2016-05-27 | 2016-05-27 | Feedback control circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205811572U true CN205811572U (en) | 2016-12-14 |
Family
ID=57501552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620502060.8U Expired - Fee Related CN205811572U (en) | 2016-05-27 | 2016-05-27 | Feedback control circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205811572U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988440A (en) * | 2018-09-03 | 2018-12-11 | Oppo广东移动通信有限公司 | Charging circuit, electronic equipment and charging method |
| CN109066883A (en) * | 2018-09-03 | 2018-12-21 | Oppo广东移动通信有限公司 | Charging circuit, charging method and electronic equipment |
-
2016
- 2016-05-27 CN CN201620502060.8U patent/CN205811572U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988440A (en) * | 2018-09-03 | 2018-12-11 | Oppo广东移动通信有限公司 | Charging circuit, electronic equipment and charging method |
| CN109066883A (en) * | 2018-09-03 | 2018-12-21 | Oppo广东移动通信有限公司 | Charging circuit, charging method and electronic equipment |
| CN109066883B (en) * | 2018-09-03 | 2020-12-22 | Oppo广东移动通信有限公司 | Charging circuit, charging method and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20200527 |