CN208707337U - A kind of mobile power source circuit for cooperating with Lightning plug - Google Patents
A kind of mobile power source circuit for cooperating with Lightning plug Download PDFInfo
- Publication number
- CN208707337U CN208707337U CN201821252908.1U CN201821252908U CN208707337U CN 208707337 U CN208707337 U CN 208707337U CN 201821252908 U CN201821252908 U CN 201821252908U CN 208707337 U CN208707337 U CN 208707337U
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- CN
- China
- Prior art keywords
- power source
- mobile power
- field
- effect tube
- source circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to mobile power source field of circuit technology, refer in particular to a kind of mobile power source circuit for cooperating with Lightning plug, including mobile power source chip, battery, field-effect tube Q1, field-effect tube Q2, triode Q3 and Lightning plug, triode Q3 on-off is exported by battery and is controlled, field-effect tube Q1 on-off by mobile power source chip input control, the end plug VBUS Lightning after concatenated triode Q3 and field-effect tube Q1 with field-effect tube Q2 grid by connecting, mobile power source chip output is connect with the end Lightning plug VBUS, triode Q3 emitter is connect with the end Lightning plug VBUS, field-effect tube Q2 drain electrode connects with the end Lightning plug GND It connects.The utility model makes mobile power source realize that limitation is straight-through and limits suspend mode voltage simultaneously, and the lower and delivery efficiency that consumes energy is higher.
Description
Technical field
The utility model relates to mobile power source field of circuit technology, refer in particular to a kind of for matching with Lightning plug
The mobile power source circuit of conjunction.
Background technique
It is mobile in order to realize this function of Auto Power On when output is terminated with conventional USB A type plug, and insertion loads
The voltage that the mobile power source chip that power supply uses output end in suspend mode still has 3v or so exists.But Lightning plug
It has been internally integrated chip, has there is output voltage, Lightning connected to it when the output end of mobile power source chip is in suspend mode
The quiescent current of plug output will reach 400uA or more, remote super mobile power source professional standard 100uA.Therefore existing movement
Power circuit can connect by the output of battery in output major loop and control the switching tube of on-off.Meanwhile mobile power source chip
All have the function of to lead directly to, can discharge while charging.In order to guarantee mobile power source using safe, generally require
Limit mobile power source chip straight-through function, therefore existing mobile power source circuit can output major loop in connect again one by
The input terminal of mobile power source chip controls the switching tube of on-off.Therefore on the output major loop of existing mobile power source often
There are two switching tubes, and it is higher that this causes the output major loop of mobile power source to consume energy, and delivery efficiency is low.
Summary of the invention
The utility model provides a kind of for cooperate with Lightning plug, output master for problem of the prior art
Consume energy the higher mobile power source circuit of lower and delivery efficiency in circuit.
The utility model adopts the following technical solution: a kind of mobile power source circuit for cooperating with Lightning plug,
Including mobile power source chip, battery, field-effect tube Q1, field-effect tube Q2, triode Q3 and Lightning plug, the shifting
Dynamic power supply chip is equipped with VCC pin and VOUT pin, the VOUT pin of the mobile power source chip and the Lightning plug
The electrical connection of the end VBUS, the emitter of the triode Q3 is electrically connected with the end VBUS of the Lightning plug, three pole
The base stage of pipe Q3 is electrically connected with the output end of the battery, the source electrode of the collector of the triode Q3 and the field-effect tube Q1
Electrical connection, the grid of the field-effect tube Q1 are electrically connected with the VCC pin of the mobile power source chip, the field-effect tube Q1's
Drain electrode is electrically connected with the grid of the field-effect tube Q2, the source electrode ground connection of the field-effect tube Q2, the leakage of the field-effect tube Q2
Pole is electrically connected with the end GND of the Lightning plug.
Preferably, the mobile power source circuit further includes resistance R2, the output end of the battery by after R2 with it is described
The base stage of triode Q3 is electrically connected.
Preferably, the mobile power source circuit further includes capacitor C1, the VOUT pin of mobile power source chip passes through capacitor
It is grounded after C1.
Preferably, the mobile power source circuit further includes resistance R1, one end of the resistance R1 and the field-effect tube
The grid of Q2 is electrically connected, the other end ground connection of the resistance R1.
Preferably, the mobile power source circuit further includes resistance R3, one end of the resistance R3 is with field-effect tube Q1's
Grid electrical connection, the other end ground connection of the resistance R3.
Preferably, the mobile power source circuit further includes diode D1, the anode of the diode D1 and the field are imitated
Should pipe Q1 drain electrode electrical connection, the cathode of the diode D1 is electrically connected with the source electrode of the field-effect tube Q1.
Preferably, the mobile power source circuit further includes diode D2, the anode of the diode D2 and the field are imitated
Should pipe Q2 source electrode electrical connection, the cathode of the triode D2 is electrically connected with the drain electrode of the field-effect tube Q2.
Preferably, the model MP5037 of the mobile power source chip.
The utility model has the beneficial effects that by being arranged by the triode Q3 of the output end control on-off of battery and by moving
The field-effect tube Q1 of the VCC pin control on-off of dynamic power supply chip, and field-effect is set on the output major loop of mobile power source
Pipe Q2 controls the on-off of field-effect tube Q2 followed by the bypass being connected in series by triode Q3 and field-effect tube Q1, thus
So that output major loop is also able to achieve limitation in the case where only one switching tube and leads directly to and limit suspend mode voltage, to protect
The lower and delivery efficiency of card output major loop energy consumption is higher.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
Appended drawing reference are as follows: 1-mobile power source chip, 2-batteries, 3-Lightning plugs.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.The utility model is carried out below in conjunction with attached drawing
Detailed description.
As shown in Figure 1, a kind of mobile power source circuit for cooperating with Lightning plug, including mobile power source chip
1, battery 2, field-effect tube Q1, field-effect tube Q2, triode Q3 and Lightning plug 3, the mobile power source chip 1 are set
There are VCC pin and VOUT pin, the end the VBUS electricity of the VOUT pin of the mobile power source chip 1 and the Lightning plug 3
Connection, the emitter of the triode Q3 are electrically connected with the end VBUS of the Lightning plug 3, the base of the triode Q3
Pole is electrically connected with the output end of the battery 2, and the collector of the triode Q3 is electrically connected with the source electrode of the field-effect tube Q1,
The grid of the field-effect tube Q1 is electrically connected with the VCC pin of the mobile power source chip 1, the drain electrode of the field-effect tube Q1 with
The grid of the field-effect tube Q2 is electrically connected, the source electrode ground connection of the field-effect tube Q2, the drain electrode of the field-effect tube Q2 and institute
State the end the GND electrical connection of Lightning plug 3.
The model MP5037 of mobile power source chip.Function field-effect tube Q1 straight-through for realizing limitation.When mobile electricity
When source chip 1 has input, i.e., just when charging the battery, field-effect tube Q1 is not turned on, and field-effect tube Q2 is also not turned on,
Lightning plug 3 can not discharge；When mobile power source chip 1 does not input, i.e., not when charging the battery, field
Effect pipe Q1 conducting.Dormant state refers to that mobile power source chip 1 limits the state that battery 2 discharges, and non-sleep state refers to mobile power source
Chip 1 does not limit battery 2, and battery 2 is capable of the state of regular picture.Triode Q3 is for realizing in mobile power source chip
1 in a dormant state when the function that disconnects Lightning plug 3 from major loop.In the dormant state, battery 2 is without output,
Triode Q3 is not turned on, and field-effect tube Q2 is also not turned on, and Lightning plug 3 can not discharge；Under non-sleep state, battery 2
There are output, triode Q3 conducting.Field-effect tube Q1 and triode Q3 series connection, therefore only scene effect pipe Q1 and triode Q3 are equal
In the case where conducting, field-effect tube Q2 is just connected, and Lightning plug 3 can discharge.The utility model is by being arranged by electricity
The field-effect tube Q1 of the triode Q3 of the output end control on-off in pond 2 and the input terminal control on-off by mobile power source chip 1,
And on the output major loop of mobile power source be arranged field-effect tube Q2, followed by by triode Q3 and field-effect tube Q1 series connection and
At bypass control the on-off of field-effect tube Q2 so that output major loop also can in the case where only one switching tube
Realization limitation is straight-through and limits suspend mode voltage, to guarantee that the lower and delivery efficiency of output major loop energy consumption is higher.
As shown in Figure 1, the mobile power source circuit further includes resistance R2, the output end of the battery 2 by after R2 with institute
State the base stage electrical connection of triode Q3.Current limliting is carried out by resistance R2, prevents high current from flowing through the base stage of triode Q3 and causing
Triode Q3 is burned.
As shown in Figure 1, the mobile power source circuit further includes capacitor C1, the VOUT pin of mobile power source chip 1 passes through electricity
It is grounded after holding C1.It is filtered by output signal of the capacitor C1 to mobile power source chip 1, to reduce Lightning plug 3
Noise in output signal.
As shown in Figure 1, the mobile power source circuit further includes resistance R1, one end of the resistance R1 and the field-effect tube
The grid of Q2 is electrically connected, the other end ground connection of the resistance R1.Bias voltage is provided for field-effect tube Q2 using resistance R1, so that
Field-effect tube Q2 can be worked normally.
As shown, the mobile power source circuit further includes resistance R3, one end of the resistance R3 is with field-effect tube Q1's
Grid electrical connection, the other end ground connection of the resistance R3.Bias voltage is provided for field-effect tube Q1 by resistance R3, so that field is imitated
Should pipe Q1 can work normally.
As shown in Figure 1, the mobile power source circuit further includes diode D1, the anode of the diode D1 and the field are imitated
Should pipe Q1 drain electrode electrical connection, the cathode of the diode D1 is electrically connected with the source electrode of the field-effect tube Q1.Utilize diode
D1 protects field-effect tube Q1, prevents the overtension between the drain electrode of field-effect tube Q1 and the source electrode of field-effect tube Q1 and leads to field
Effect pipe Q1 is breakdown.
As shown in Figure 1, the mobile power source circuit further includes diode D2, the anode of the diode D2 and the field are imitated
Should pipe Q2 source electrode electrical connection, the cathode of the triode D2 is electrically connected with the drain electrode of the field-effect tube Q2.Utilize diode
D2 protects field-effect tube Q2, prevents the overtension between the drain electrode of field-effect tube Q2 and the source electrode of field-effect tube Q2 and leads to field
Effect pipe Q2 is breakdown.
The above is only the utility model preferred embodiment, is not made in any form to the utility model
Limitation, although the utility model is disclosed as above with preferred embodiment, is not intended to limit the utility model, any to be familiar with sheet
Technical professional is not departing within the scope of technical solutions of the utility model, makes when using the technology contents of the disclosure above
A little change or the equivalent embodiment for being modified to equivalent variations, but it is all without departing from the content of the technical scheme of the utility model, foundation
The utility model technology refers to any simple modification, equivalent change and modification to the above embodiments, belongs to practical
In the range of new technique scheme.
Claims (8)
1. a kind of mobile power source circuit for cooperating with Lightning plug, it is characterised in that: including mobile power source chip
(1), battery (2), field-effect tube Q1, field-effect tube Q2, triode Q3 and Lightning plug (3), the mobile power source core
Piece (1) is equipped with VCC pin and VOUT pin, the VOUT pin and the Lightning plug of the mobile power source chip (1)
(3) the end VBUS electrical connection, the emitter of the triode Q3 are electrically connected with the end VBUS of the Lightning plug (3), institute
The base stage for stating triode Q3 is electrically connected with the output end of the battery (2), the collector of the triode Q3 and the field-effect
The source electrode of pipe Q1 is electrically connected, and the grid of the field-effect tube Q1 is electrically connected with the VCC pin of the mobile power source chip (1), institute
The drain electrode for stating field-effect tube Q1 is electrically connected with the grid of the field-effect tube Q2, the source electrode ground connection of the field-effect tube Q2, described
The drain electrode of field-effect tube Q2 is electrically connected with the end GND of the Lightning plug (3).
2. a kind of mobile power source circuit for cooperating with Lightning plug according to claim 1, feature exist
In: the mobile power source circuit further includes resistance R2, and the output end of the battery (2) passes through the base after R2 with the triode Q3
Pole electrical connection.
3. a kind of mobile power source circuit for cooperating with Lightning plug according to claim 1, feature exist
In: the mobile power source circuit further includes capacitor C1, and the VOUT pin of mobile power source chip (1) after capacitor C1 by being grounded.
4. a kind of mobile power source circuit for cooperating with Lightning plug according to claim 1, feature exist
In: the mobile power source circuit further includes resistance R1, and one end of the resistance R1 is electrically connected with the grid of the field-effect tube Q2,
The other end of the resistance R1 is grounded.
5. a kind of mobile power source circuit for cooperating with Lightning plug according to claim 1, feature exist
In: the mobile power source circuit further includes resistance R3, and one end of the resistance R3 is electrically connected with the grid of field-effect tube Q1, described
The other end of resistance R3 is grounded.
6. a kind of mobile power source circuit for cooperating with Lightning plug according to claim 1, feature exist
In: the mobile power source circuit further includes diode D1, the drain electrode electricity of the anode of the diode D1 and the field-effect tube Q1
Connection, the cathode of the diode D1 are electrically connected with the source electrode of the field-effect tube Q1.
7. a kind of mobile power source circuit for cooperating with Lightning plug according to claim 1, feature exist
In: the mobile power source circuit further includes diode D2, the source electrode electricity of the anode of the diode D2 and the field-effect tube Q2
Connection, the cathode of the triode D2 are electrically connected with the drain electrode of the field-effect tube Q2.
8. a kind of mobile power source circuit for cooperating with Lightning plug according to claim 1, feature exist
In: the model MP5037 of the mobile power source chip (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821252908.1U CN208707337U (en) | 2018-08-03 | 2018-08-03 | A kind of mobile power source circuit for cooperating with Lightning plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821252908.1U CN208707337U (en) | 2018-08-03 | 2018-08-03 | A kind of mobile power source circuit for cooperating with Lightning plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208707337U true CN208707337U (en) | 2019-04-05 |
Family
ID=65940516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821252908.1U Expired - Fee Related CN208707337U (en) | 2018-08-03 | 2018-08-03 | A kind of mobile power source circuit for cooperating with Lightning plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208707337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111478414A (en) * | 2020-05-26 | 2020-07-31 | 重庆捷怡景科技有限公司 | Symbiotic intelligent terminal equipment charger |
-
2018
- 2018-08-03 CN CN201821252908.1U patent/CN208707337U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111478414A (en) * | 2020-05-26 | 2020-07-31 | 重庆捷怡景科技有限公司 | Symbiotic intelligent terminal equipment charger |
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| GR01 | Patent grant | ||
| 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: 20190405 |