CN108429439A - 7.2V DC voltages to be down to the circuit and intelligent carriage of 5V - Google Patents
7.2V DC voltages to be down to the circuit and intelligent carriage of 5V Download PDFInfo
- Publication number
- CN108429439A CN108429439A CN201810294220.8A CN201810294220A CN108429439A CN 108429439 A CN108429439 A CN 108429439A CN 201810294220 A CN201810294220 A CN 201810294220A CN 108429439 A CN108429439 A CN 108429439A
- Authority
- CN
- China
- Prior art keywords
- filter capacitor
- chips
- voltages
- pins
- power supply
- Prior art date
- 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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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D63/00—Motor vehicles or trailers not otherwise provided for
- B62D63/02—Motor vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
Abstract
This application discloses a kind of 7.2V DC voltages to be down to the circuit of 5V, including LM2940 chips, the TAB pins and GND pin of the LM2940 chips are directly grounded, the IN pins of LM2940 chips connect 7.2V DC voltages, further include the first filter capacitor and the second filter capacitor of parallel connection, the OUT pins of one termination LM2940 chips of the first filter capacitor, the other end of first filter capacitor is grounded, the OUT pins of one termination LM2940 chips of the second filter capacitor, the other end ground connection of the second filter capacitor.Disclosed herein as well is a kind of intelligent carriages.The present invention is depressured using LM2940 chips, and the voltage ripple of output is small, and stability is high, and service life is long, and fever is few.
Description
Technical field
This application involves a kind of intelligent carriage, more particularly to it is a kind of to 7.2V DC voltages are down to 5V circuit and
Intelligent carriage.
Background technology
Intelligent carriage generally includes the motor for driving car wheel to move forward or back, plays angle rotation to band motor car wheel
Steering engine, to the obstacle sensor of disturbance of perception information, to the controller that is controlled motor, steering engine and be rudder
Machine etc. provides the DC power supply of power supply.
DC power supply in the prior art uses a chip to provide power supply simultaneously for steering engine, motor, controller, still
Its output voltage is unstable, and power supply service life is short, is easy fever.
Invention content
The purpose of the present invention is to provide a kind of 7.2V DC voltages to be down to the circuit and intelligent carriage of 5V, with gram
Take deficiency in the prior art.
To achieve the above object, the present invention provides the following technical solutions：
The embodiment of the present application disclose it is a kind of 7.2V DC voltages to be down to the circuit of 5V, including LM2940 chips, should
The TAB pins and GND pin of LM2940 chips are directly grounded, and the IN pins of LM2940 chips connect 7.2V DC voltages, further include
First filter capacitor and the second filter capacitor in parallel, the OUT pins of a termination LM2940 chips of the first filter capacitor, first
The other end of filter capacitor is grounded, the OUT pins of a termination LM2940 chips of the second filter capacitor, the second filter capacitor it is another
One end is grounded.
Preferably, above-mentioned 7.2V DC voltages to be down in the circuit of 5V, the first filter capacitor size
For 0.1 μ F.
Preferably, above-mentioned 7.2V DC voltages to be down in the circuit of 5V, the second filter capacitor size
For 20 μ F.
Disclosed herein as well is a kind of intelligent carriages, including controller, steering engine, motor, motor drive module, avoidance to sense
Device and DC power supply, the motor drive module are connected between controller and motor, and the avoidance sensor is connected to control
The input terminal of device, the steering engine are connected to the output end of controller, and device, steering engine, motor, motor drive the DC power supply in order to control
Dynamic model block and avoidance sensor provide DC power supply, and the DC power supply size is 7.2V, and the DC power supply passes through power supply electricity
Road provides 5V DC voltages for avoidance sensor, and power circuit includes LM2940 chips, the TAB pins of the LM2940 chips and
GND pin is directly grounded, and the IN pins of LM2940 chips connect 7.2V DC voltages, further includes in parallel the first filter capacitor and the
Two filter capacitors, the OUT pins of a termination LM2940 chips of the first filter capacitor, the other end ground connection of the first filter capacitor,
The OUT pins of one termination LM2940 chips of the second filter capacitor, the other end ground connection of the second filter capacitor.
Preferably, in above-mentioned intelligent carriage, the avoidance sensor is ultrasonic sensor.
Preferably, in above-mentioned intelligent carriage, the first filter capacitor size is 0.1 μ F.
Preferably, in above-mentioned intelligent carriage, the second filter capacitor size is 20 μ F.
Compared with the prior art, the advantages of the present invention are as follows：The present invention is depressured using LM2940 chips, the electricity of output
It is small to emboss wave, stability is high, and service life is long, and fever is few.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
Fig. 1 show the functional-block diagram of intelligent carriage in the specific embodiment of the invention；
Fig. 2 show in the specific embodiment of the invention for 7.2V DC voltages to be down to the circuit diagram of 5V.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In conjunction with shown in Fig. 1, the embodiment of the present application provides a kind of intelligent carriage, including controller, steering engine, motor, motor drive
Dynamic model block, avoidance sensor and DC power supply, the motor drive module are connected between controller and motor, and the avoidance passes
Sensor is connected to the input terminal of controller, and the steering engine is connected to the output end of controller, the DC power supply device, rudder in order to control
Mechanical, electrical machine drive module and avoidance sensor provide DC power supply.
DC power supply size is 7.2V, and the DC power supply provides 5V direct currents by power circuit for avoidance sensor
Pressure.
Controller may include microprocessor (MCU), which may include central processing unit (Central
Processing Unit, CPU), read-only memory module (read-only memory, ROM), random storage module (random
Access memory, RAM), timing module, digital-to-analogue conversion module (A/D converter) and plural input/output
Port.Certainly, the integrated circuit that controller can also take other form, such as：Application-specific IC (Application
Specific Integrated Circuit, ASIC) or field programmable gate arrays (Field Programmable Gate
Array, FPGA) etc..
In conjunction with shown in Fig. 2, power circuit includes LM2940 chips 101, the TAB pins (pin 4) of the LM2940 chips 101
It is directly grounded with GND pin (pin 2), the IN pins (pin 1) of LM2940 chips 101 connect 7.2V DC voltages, further include simultaneously
The OUT of the first filter capacitor 102 and the second filter capacitor 103 of connection, a termination LM2940 chips of the first filter capacitor 102 draws
Foot (pin 3), the other end ground connection of the first filter capacitor 102, the OUT of a termination LM2940 chips of the second filter capacitor 103
Pin, the other end ground connection of the second filter capacitor 103.
It in the technical solution, is depressured using LM2940 chips, the voltage ripple of output is small, and stability is high, uses the longevity
Life length, fever are few.
In addition, the LM2940 chips of this case do not make other power supplys while providing burning voltage for avoidance sensor
It generates heat at influence, and during use small.
In a preferred embodiment, the avoidance sensor is ultrasonic sensor.
In a preferred embodiment, 102 size of the first filter capacitor is 0.1 μ F.
In a preferred embodiment, 103 size of the second filter capacitor is 20 μ F.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (7)
1. a kind of 7.2V DC voltages to be down to the circuit of 5V, which is characterized in that including LM2940 chips, the LM2940 cores
The TAB pins and GND pin of piece are directly grounded, and the IN pins of LM2940 chips connect 7.2V DC voltages, further include in parallel the
One filter capacitor and the second filter capacitor, the OUT pins of a termination LM2940 chips of the first filter capacitor, the first filter capacitor
The other end ground connection, the second filter capacitor one termination LM2940 chips OUT pins, another termination of the second filter capacitor
Ground.
2. according to shown in claim 1 7.2V DC voltages to be down to the circuit of 5V, which is characterized in that first filter
Wave capacitance size is 0.1 μ F.
3. according to shown in claim 1 7.2V DC voltages to be down to the circuit of 5V, which is characterized in that second filter
Wave capacitance size is 20 μ F.
4. a kind of intelligent carriage, which is characterized in that including controller, steering engine, motor, motor drive module, avoidance sensor and
DC power supply, the motor drive module are connected between controller and motor, and the avoidance sensor is connected to controller
Input terminal, the steering engine are connected to the output end of controller, and device, steering engine, motor, motor drive mould to the DC power supply in order to control
Block and avoidance sensor provide DC power supply, and the DC power supply size is 7.2V, and the DC power supply is by power circuit
Avoidance sensor provides 5V DC voltages, and power circuit includes LM2940 chips, and the TAB pins and GND of the LM2940 chips draw
Foot is directly grounded, and the IN pins of LM2940 chips connect 7.2V DC voltages, further includes that the first filter capacitor and second in parallel is filtered
Wave capacitance, the OUT pins of a termination LM2940 chips of the first filter capacitor, the other end ground connection of the first filter capacitor, second
The OUT pins of one termination LM2940 chips of filter capacitor, the other end ground connection of the second filter capacitor.
5. according to intelligent carriage shown in claim 4, which is characterized in that the avoidance sensor is ultrasonic sensor.
6. according to intelligent carriage shown in claim 4, which is characterized in that the first filter capacitor size is 0.1 μ F.
7. according to intelligent carriage shown in claim 4, which is characterized in that the second filter capacitor size is 20 μ F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810294220.8A CN108429439A (en) | 2018-03-30 | 2018-03-30 | 7.2V DC voltages to be down to the circuit and intelligent carriage of 5V |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810294220.8A CN108429439A (en) | 2018-03-30 | 2018-03-30 | 7.2V DC voltages to be down to the circuit and intelligent carriage of 5V |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108429439A true CN108429439A (en) | 2018-08-21 |
Family
ID=63160397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810294220.8A Pending CN108429439A (en) | 2018-03-30 | 2018-03-30 | 7.2V DC voltages to be down to the circuit and intelligent carriage of 5V |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108429439A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090180303A1 (en) * | 2008-01-15 | 2009-07-16 | Fitipower Integrated Technology, Inc. | Voltage converter |
| CN104103144A (en) * | 2014-06-30 | 2014-10-15 | 苏州原点工业设计有限公司 | Residual current electrical fire monitor power supply circuit |
| CN207968316U (en) * | 2018-03-30 | 2018-10-12 | 张浩然 | 7.2V DC voltages to be down to the circuit and intelligent carriage of 5V |
-
2018
- 2018-03-30 CN CN201810294220.8A patent/CN108429439A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090180303A1 (en) * | 2008-01-15 | 2009-07-16 | Fitipower Integrated Technology, Inc. | Voltage converter |
| CN104103144A (en) * | 2014-06-30 | 2014-10-15 | 苏州原点工业设计有限公司 | Residual current electrical fire monitor power supply circuit |
| CN207968316U (en) * | 2018-03-30 | 2018-10-12 | 张浩然 | 7.2V DC voltages to be down to the circuit and intelligent carriage of 5V |
Non-Patent Citations (1)
| Title |
|---|
| 叶晓剑等: "基于MC9S12XS128单片机智能寻迹小车的设计", 科技创新导报, no. 14, pages 1 - 3 * |
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