CN207134826U - A kind of booster circuit of Big Dipper portable device - Google Patents
A kind of booster circuit of Big Dipper portable device Download PDFInfo
- Publication number
- CN207134826U CN207134826U CN201720854992.3U CN201720854992U CN207134826U CN 207134826 U CN207134826 U CN 207134826U CN 201720854992 U CN201720854992 U CN 201720854992U CN 207134826 U CN207134826 U CN 207134826U
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- Prior art keywords
- resistor
- resistance
- power management
- management chip
- booster 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 discloses a kind of booster circuit of Big Dipper portable device, the circuit includes power management chip, first resistor, second resistance and 3rd resistor；One end of first resistor is connected with the output end of power management chip, and the other end is connected with one end of second resistance；The other end of second resistance is connected with one end of 3rd resistor；The other end ground connection of 3rd resistor；The common port of first resistor and second resistance is connected with the charging module feedback end of Big Dipper portable device；The common port of second resistance and 3rd resistor is connected with the feedback end of power management chip.The application is realized by the common port of first resistor and second resistance obtains different voltages according to different configurations, to realize that the booster circuit that a chip forms exports different booster voltages, the drawbacks of so as to avoid multi-chip more circuit realiration difference boost in voltage, and the complexity of circuit can be simplified, reduce the design difficulty of ting model Beidou navigation product.
Description
Technical field
Beidou navigation technical field is the utility model is related to, more particularly to a kind of booster circuit of Big Dipper portable device.
Background technology
With the progress of Beidou navigation technology, the multiple product based on Beidou navigation technology is derived.
Beidou navigation product generally requires booster circuit, and the voltage requirements of modules are different, therefore needs to pass through boosting
The different voltage of circuit output.It is usually to use multiple chips, multiple circuits to realize difference in existing Beidou navigation product
Boost in voltage.
But multiple chips, multiple circuits can cause corresponding drawback, and it will necessarily also increase the complexity of circuit so that
The design difficulty of some ting model Big Dipper products increases.
Utility model content
The purpose of this utility model is to provide a kind of booster circuit of Big Dipper portable device, it is therefore intended that solves the existing Big Dipper
Navigation product booster circuit using circuit complexity caused by the more circuit realiration difference boost in voltage of multi-chip and design difficulty compared with
The problem of high.
In order to solve the above technical problems, the utility model provides a kind of booster circuit of Big Dipper portable device, the circuit bag
Include power management chip, first resistor, second resistance and 3rd resistor；
One end of the first resistor is connected with the output end of the power management chip, the other end and the second resistance
One end be connected；The other end of the second resistance is connected with one end of the 3rd resistor；The other end of the 3rd resistor
Ground connection；
The common port of the first resistor and the second resistance is connected with the charging module feedback end of Big Dipper portable device；
The common port of the second resistance and the 3rd resistor is connected with the feedback end of the power management chip.
Alternatively, the booster circuit also includes multiple electric capacity, and each described electric capacity one end is connected with the output end,
The other end is grounded.
Alternatively, the power input pin of the power management chip battery phase with the Big Dipper portable device respectively
Even, one end of the first electric capacity is connected, the other end ground connection of first electric capacity.
Alternatively, the switch pin of the power management chip is connected by the first inductance with the battery；Described first
One end with the second electric capacity, one end of the 4th resistance are connected respectively for one end that inductance is connected with the switch pin, and described second
The other end of electric capacity is connected with the startup pin of the power management chip, the other end and the power supply pipe of the 4th resistance
The frequency switching pin of reason chip is connected.
Alternatively, the power management chip is used for the enable pin for receiving enable signal and the Big Dipper portable device
MCU is connected.
Alternatively, the output end is connected with the wireless charging module or RDSS functional modules of the Big Dipper portable device.
A kind of booster circuit of Big Dipper portable device provided by the utility model, the circuit include power management chip,
First resistor, second resistance and 3rd resistor；One end of first resistor is connected with the output end of power management chip, the other end with
One end of second resistance is connected；The other end of second resistance is connected with one end of 3rd resistor；The other end ground connection of 3rd resistor；
The common port of first resistor and second resistance is connected with the charging module feedback end of Big Dipper portable device；Second resistance and the 3rd electricity
The common port of resistance is connected with the feedback end of power management chip.The application is realized by the common port of first resistor and second resistance
Different voltages are obtained according to different configurations, to realize that the booster circuit that a chip forms exports different booster voltages, from
And the drawbacks of avoiding multi-chip more circuit realiration difference boost in voltage, and the complexity of circuit can be simplified, reduce ting model
The design difficulty of Beidou navigation product.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 is the specific implementation figure of the booster circuit for the Big Dipper portable device that the utility model embodiment provides.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
Fig. 1 is refer to, Fig. 1 is the specific implementation of the booster circuit for the Big Dipper portable device that the utility model embodiment provides
Figure, the circuit include power management chip U4200, first resistor R4205, second resistance R4206 and 3rd resistor R4207；Institute
State one end of first resistor with the output end VOUT of the power management chip to be connected, the other end and one end of the second resistance
It is connected；The other end of the second resistance is connected with one end of the 3rd resistor；The other end ground connection of the 3rd resistor；Institute
State first resistor and the common port of the second resistance is connected with the charging module feedback end WPC_FB of Big Dipper portable device；It is described
The common port of second resistance and the 3rd resistor is connected with the feedback end FB pins of the power management chip.
It is appreciated that based on above-mentioned first resistor, second resistance, 3rd resistor, pass through different configurations, you can obtain difference
Voltage, the devices of the types such as potentiometer can be specifically connected with R4206 common port by R4205, regulation obtains difference
Resistance, with realize output needed for different voltages.
In order to ensure the boost function of booster circuit, booster circuit can also need other peripheral circuit structures.Specifically,
Booster circuit includes multiple electric capacity, and each electric capacity one end is connected with output end, other end ground connection.More specifically can be in Fig. 1
Electric capacity C4208, C4212, C4213, C4214, C4210, C4211, its specific annexation may refer to Fig. 1, herein not
Repeat again.
The power input pin VIN of power management chip is connected with the battery VBAT ends of Big Dipper portable device respectively, first
Electric capacity C4204 one end is connected, the other end ground connection of the first electric capacity.
The switch pin SW pins of power management chip are connected by the first inductance L4200 with battery；First inductance is with opening
Closing the connected one end of pin, one end with the second electric capacity C4203, the 4th resistance R4201 one end are connected respectively, the second electric capacity
The other end is connected with the startup pin BOOT of power management chip, and the other end of the 4th resistance and the frequency of power management chip are opened
Pin FSW is closed to be connected.
The enable pin EN that power management chip is used to receive enable signal is connected with the MCU of Big Dipper portable device.That is Fig. 1
Shown in U4200 chips EN pins receive WPC_EN signals, wherein it is desired to pass through the filtering being made up of R4202, C4205
Circuit.It is appreciated that MCU by enable signal control booster circuit conducting whether, modules can be controlled as needed
Power supply whether, then avoid the waste of electric energy, reach energy-saving effect.
The VOUT pins of U4200 in Fig. 1 are the wireless charging module or RDSS functions of output end and Big Dipper portable device
Module is connected.I.e. the booster circuit can be the booster circuit of the wireless charging module power supply of Big Dipper portable device, or
The booster circuit of the RDSS functional modules of Big Dipper portable device, the VDD_WPC in Fig. 1 are referred specifically to as wireless charging module
Power supply.
To ensure the stabilization of booster circuit, booster circuit is also needed to include other peripheral circuit structures, can specifically joined
See Fig. 1, will not be repeated here.
A kind of booster circuit for Big Dipper portable device that the utility model embodiment is provided, the circuit include power management
Chip, first resistor, second resistance and 3rd resistor；One end of first resistor is connected with the output end of power management chip, separately
One end is connected with one end of second resistance；The other end of second resistance is connected with one end of 3rd resistor；3rd resistor it is another
End ground connection；The common port of first resistor and second resistance is connected with the charging module feedback end of Big Dipper portable device；Second resistance
It is connected with the common port of 3rd resistor with the feedback end of power management chip.It is real by the common port of first resistor and second resistance
Different voltages are now obtained according to different configurations, to realize that the booster circuit that a chip forms exports different booster voltages,
The drawbacks of so as to avoid multi-chip more circuit realiration difference boost in voltage, and the complexity of circuit can be simplified, reduce small-sized
The design difficulty of number Beidou navigation product.
A kind of booster circuit of Big Dipper portable device provided by the utility model is described in detail above.Herein
In apply specific case principle of the present utility model and embodiment be set forth, the explanation of above example is simply used
Understand method and its core concept of the present utility model in help.It should be pointed out that for those skilled in the art
For, on the premise of the utility model principle is not departed from, some improvement and modification can also be carried out to the utility model, these
Improve and modification is also fallen into the protection domain of the utility model claims.
Claims (6)
1. a kind of booster circuit of Big Dipper portable device, it is characterised in that including power management chip, first resistor, the second electricity
Resistance and 3rd resistor；
One end of the first resistor is connected with the output end of the power management chip, the other end and the one of the second resistance
End is connected；The other end of the second resistance is connected with one end of the 3rd resistor；The other end ground connection of the 3rd resistor；
The common port of the first resistor and the second resistance is connected with the charging module feedback end of Big Dipper portable device；It is described
The common port of second resistance and the 3rd resistor is connected with the feedback end of the power management chip.
2. booster circuit as claimed in claim 1, it is characterised in that the booster circuit also includes multiple electric capacity, Mei Gesuo
State electric capacity one end with the output end to be connected, other end ground connection.
3. booster circuit as claimed in claim 2, it is characterised in that the power input pin difference of the power management chip
It is connected with the battery of the Big Dipper portable device, one end of the first electric capacity is connected, the other end ground connection of first electric capacity.
4. booster circuit as claimed in claim 3, it is characterised in that the switch pin of the power management chip passes through first
Inductance is connected with the battery；First inductance and described one end for being connected of switch pin respectively one end with the second electric capacity,
One end of 4th resistance is connected, and the other end of second electric capacity is connected with the startup pin of the power management chip, described
The other end of 4th resistance is connected with the frequency switching pin of the power management chip.
5. the booster circuit as described in any one of Claims 1-4, it is characterised in that the power management chip is used to receive
The enable pin of enable signal is connected with the MCU of the Big Dipper portable device.
6. booster circuit as claimed in claim 5, it is characterised in that the output end is wireless with the Big Dipper portable device
Charging module or RDSS functional modules are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720854992.3U CN207134826U (en) | 2017-07-14 | 2017-07-14 | A kind of booster circuit of Big Dipper portable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720854992.3U CN207134826U (en) | 2017-07-14 | 2017-07-14 | A kind of booster circuit of Big Dipper portable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207134826U true CN207134826U (en) | 2018-03-23 |
Family
ID=61634060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720854992.3U Expired - Fee Related CN207134826U (en) | 2017-07-14 | 2017-07-14 | A kind of booster circuit of Big Dipper portable device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207134826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412820A (en) * | 2018-12-18 | 2019-03-01 | 中国电子科技集团公司第五十四研究所 | A kind of Beidou message communication terminal of access using one cable network |
-
2017
- 2017-07-14 CN CN201720854992.3U patent/CN207134826U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412820A (en) * | 2018-12-18 | 2019-03-01 | 中国电子科技集团公司第五十四研究所 | A kind of Beidou message communication terminal of access using one cable network |
| CN109412820B (en) * | 2018-12-18 | 2024-05-28 | 中国电子科技集团公司第五十四研究所 | Beidou message communication terminal of one-line access network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20180323 Termination date: 20210714 |