CN104319991B - A kind of automobile power source based on TLE7368 3E direct current transducers - Google Patents
A kind of automobile power source based on TLE7368 3E direct current transducers Download PDFInfo
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- CN104319991B CN104319991B CN201410572079.5A CN201410572079A CN104319991B CN 104319991 B CN104319991 B CN 104319991B CN 201410572079 A CN201410572079 A CN 201410572079A CN 104319991 B CN104319991 B CN 104319991B
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- automobile
- voltage
- power supply
- circuit
- tle7368
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Classifications
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- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
-
- 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
Abstract
The present invention relates to a kind of automobile power source of the direct current transducer based on TLE7368 3E, it is inconsistent to solve the supply voltage of numerous singlechip chips and sensor in automobile, cause the problem of powered vehicle power supply stability is bad, circuit efficiency is low and cost is high, the power supply of the present invention is powered for the single-chip microcomputer in automobile and sensor, including voltage-stabilized power supply, power-switching circuit, power supply input circuit and some probe power output circuits.The present invention by filter circuit filters out clutter so that the voltage obtained in circuit is more stable, makes single-chip microcomputer in automobile and working sensor more stable.Burning voltage is switched into 5V, 3.3V and 1.5V to meet requirement of each single-chip microcomputer to power supply, circuit efficiency is higher.Probe power output circuit provides convenient and stable power supply for the sensor of numerous inconsistent voltage requirements in automobile, ensures the stabilization of automobile powered operation.
Description
Technical field
The present invention relates to a kind of power supply, more particularly to a kind of automobile power source of the direct current transducer based on TLE7368-3E.
Background technology
Power supply is indispensable pith in circuit, and the items that the quality of power supply directly affects electronic equipment refer to
Mark, power supply are widely used in the various fields such as military research, power system, space flight and aviation, computer, household electrical appliance,
It mainly provides electric current and electric energy to circuit.And in the car, the supply voltage of numerous singlechip chips and sensor differs
Cause, cause that powered vehicle power supply stability is bad, circuit efficiency is low and cost is high.
The content of the invention
The purpose of the present invention is to provide a kind of automobile power source of the direct current transducer based on TLE7368-3E, to solve
Method solves numerous singlechip chips and the supply voltage of sensor is inconsistent, cause powered vehicle power supply stability it is bad,
The efficiency of circuit is low and the problem of cost is high.
In order to solve the above problems, the application gives a kind of automobile electricity of direct current transducer based on TLE7368-3E
Source, including：
Voltage-stabilized power supply, power-switching circuit, power supply input circuit and some probe power output circuits, wherein：
The power-switching circuit includes TLE7368-3E chips and its peripheral circuit；
The power output circuit includes input reverse connection prevention protection circuit, the first filter circuit and first being sequentially connected
Power feedback；The input of the input reverse connection prevention protection circuit connects the voltage-stabilized power supply, the anti-reverse guarantor of input
The output end of protection circuit connects first filter circuit, and the output end of first filter circuit is fed back with first power supply
The input connection of circuit；
The output end of first power feedback feeds back to the single-chip microcomputer in the automobile, single-chip microcomputer in the automobile
By the voltage of reception come the output end of voltage-stabilized power supply described in adjustment control, the voltage output end of first power feedback
The feeder ear of the TLE7368-3E chips is connected, the power output end of the TLE7368-3E chips connects the list of the automobile
The feeder ear of piece machine；
The probe power output circuit includes the linear voltage regulator, the second wave filter and the 3rd filter being sequentially connected
Ripple device, the input of the linear voltage regulator input the input connection of the sensor output signal and the linear voltage regulator
The output end of the voltage-stabilized power supply, the output end of the linear voltage regulator connect the input of second wave filter, and described the
The output end of two wave filters connects the input of the 3rd wave filter and the output end of the voltage-stabilized power supply, the 3rd filter
The output end of ripple device connects the feeder ear of the sensor corresponding to the probe power output circuit.
It is preferred that the single-chip microcomputer connects the sensor, the sensor is controlled to send sensor output signal.
It is preferred that it is described input reverse connection prevention protection circuit include FET and both ends respectively its output stage with
First resistor and diode composition on grid, the diode cathode connect grid, negative pole connection output stage.
It is preferred that also include a zener diode and a protective resistance, the plus earth of the voltage-regulator diode, negative pole
The output stage of the FET, one end ground connection of the protective resistance are connected, the other end connects the grid of the FET.
It is preferred that first wave filter is made up of the first electric capacity and the second electric capacity, first electric capacity and second
Electric capacity is the output stage other end ground connection that one end connects the FET.
It is preferred that first resistor and second resistance are included in first power feedback, the first resistor
One end connects the output end of the FET, and the other end connects one end of the second resistance, the TLE7368-3E respectively
Single-chip microcomputer in the feeder ear of chip and the automobile, the second resistance both ends one the 3rd electric capacity in parallel.
It is preferred that the linear voltage regulator is TLE4251D.
It is preferred that second wave filter includes a magnetic bead and the 3rd electric capacity, magnetic bead one end connection is described linear
Voltage-stablizer, the other end of the magnetic bead connect one end of the 3rd electric capacity；The other end ground connection of 3rd electric capacity.
It is preferred that the 3rd wave filter includes 3rd resistor, the 4th resistance and the 4th electric capacity, the 3rd resistor
One end connects the magnetic bead and the tie point thirdly entered, and the other end of the 3rd resistor connects the 4th resistance respectively
The feeder ear of sensor corresponding to one end and the probe power output circuit, another termination of the 4th resistance
Ground, the 4th electric capacity and the 4th resistor coupled in parallel.
A kind of automobile power source of direct current transducer based on TLE7368-3E provided by the invention, compared with prior art,
Have the advantage that：
（1）Good, the suitable voltage that provides stability for the numerous singlechip chips and sensor in automobile.
（2）When power positive cathode is reversed, inputs FET in reverse connection prevention protection circuit and be not turned on, then system
Can not be normally upper electric, that is, the circuit cisco unity malfunction when voltage-stabilized power supply reversal connection, protect the work of whole power circuit to pacify
Entirely.
（3）Clutter is filtered out by the first filter circuit, the second filter circuit and the 3rd filter circuit so that in circuit
The voltage arrived is more stable, makes single-chip microcomputer in automobile and working sensor more stable.
（4）Using TLE7368-3E chips, voltage is switched into 5V, 3.3V and 1.5V to meet that each single-chip microcomputer is wanted to power supply
Ask, circuit efficiency is higher.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of power-switching circuit in inventive embodiments；
Fig. 2 is the circuit theory diagrams of power supply input circuit in inventive embodiments；
Fig. 3 is the circuit theory diagrams of probe power output circuit in inventive embodiments；
Fig. 4 is a kind of system frame of the automobile power source of the direct current transducer based on TLE7368-3E in the embodiment of the present invention
Figure.
Embodiment
Below in conjunction with accompanying drawing, further details of narration is done to a specific embodiment of the invention.
The present invention proposes a kind of automobile power source of the direct current transducer based on TLE7368-3E, is the single-chip microcomputer in automobile
10 and sensor 20 power, wherein, have numerous single-chip microcomputers and sensor in automobile, its need supply voltage it is inconsistent,
Some chips are 1.5 V, and some chips are 3.3V, and the supply voltage of the functional chip of many modules is 5V, it is necessary to by direct current
Voltage 24V high voltages carry out decompression processing to realize the power supply to automotive system.
If automobile power source in the present invention include voltage-stabilized power supply 30, power-switching circuit 40, power supply input circuit 50 and
Dry probe power output circuit 60, wherein：
As shown in figure 1, power-switching circuit includes TLE7368-3E chips and its peripheral circuit.The present invention selects
TLE7368-3E is as DC converter.Its main feature has：The supply system of efficient microcontroller of new generation, 4.5V is extremely
45V Width funtion input voltage range, -40 °C to+150 °C of operating temperature range；Relatively low loss；Integrated linear voltage stabilization
Device control circuit；The optional output voltage of hardware is 1.0V or 2.6V 30mA.
Power supply input circuit includes input reverse connection prevention protection circuit, the first filter circuit and the first power supply being sequentially connected
Feedback circuit.Input the input RLIN1 connection voltage-stabilized power supplies of reverse connection prevention protection circuit, voltage-stabilized power supply input 24V voltages, input
The output end of reverse connection prevention protection circuit connects the first filter circuit, the output end of the first filter circuit and the first power feedback
Input connection.The output end of first power feedback feeds back to the single-chip microcomputer 10 in automobile, the first power feedback
Voltage output end be also connected with the feeder ears of TLE7368-3E chips, as the 10th pin, the power supply of TLE7368-3E chips is defeated
Go out end, after as 35 pins connect pull-up resistor, or the 30th pin, the 6th pin, the 32nd pin connect peripheral circuit, the 3rd or 4 pins
Final voltage that peripheral circuit obtains is connect to connect the feeder ear of numerous single-chip microcomputers in automobile, realizes the chip power supply to automobile.
In the present embodiment, as shown in Fig. 2 input reverse connection prevention protection circuit includes FET and both ends respectively at it
First resistor R21 and diode z1 compositions in output stage and grid, diode z1 positive poles connection grid, negative pole connection output
Pole.Also include an a zener diode SM6S36A and protective resistance R22, voltage-regulator diode is used for obtaining smoother electricity
Pressure, its plus earth, negative pole connect the output stage of FET, and protective resistance is used for protecting field-effect Q1 pipes, and one end is grounded,
The other end connects the grid of the FET.
First wave filter is made up of the first electric capacity C21 and the second electric capacity C22, the first electric capacity C21 and the second electric capacity C22
It is one end connection FET Q1 output stage, the other end is grounded.
First resistor R23 and second resistance R24, one end connection field of first resistor are included in first power feedback
The output end of effect pipe, the other end connect one end of second resistance, the feeder ear (the 10th pin) of TLE7368-3E chips respectively
And the single-chip microcomputer 10 in automobile, single-chip microcomputer 10 can be realized to inputting the power supply input circuit by the voltage of reception in automobile
Power supply diagnosis and processing, so as to carry out the output end signal of adjustment control voltage-stabilized power supply, second resistance both ends parallel connection one the 3rd
Electric capacity C23.It is total that resistance capacitance size in the present embodiment is labeled in accompanying drawing, and unit of resistance is ohm, unit of capacity F.
Probe power output circuit includes the linear voltage regulator, the second wave filter and the 3rd filtering being sequentially connected
Device, linear voltage regulator TLE4251D, it is Q3, and the input input pickup output signal 24_ of linear voltage regulator in Fig. 3
PWT_EN, Q3 is controlled to work by 24_PWT_EN, and the output end of the input connection voltage-stabilized power supply of linear voltage regulator, line
Property voltage-stablizer output end connect the input of the second wave filter, the output end of the second wave filter connects the input of the 3rd wave filter
End and the output end 24_PWT1 of voltage-stabilized power supply, the output end 24_PWT2 connection probe power output circuits of the 3rd wave filter
The feeder ear of corresponding sensor.
In the present embodiment, the second wave filter includes a magnetic bead FB1 and the 3rd electric capacity C31, and the connection of magnetic bead one end is linear steady
Depressor Q3, the other end of magnetic bead connect one end of the 3rd electric capacity, the other end ground connection of the 3rd electric capacity.
In the present embodiment, the 3rd wave filter includes 3rd resistor R31, the 4th resistance R32 and the 4th electric capacity C31, and the 3rd
One end connection magnetic bead of resistance and the tie point of the 3rd electric capacity, the other end of 3rd resistor is the output end 24_ of the 3rd wave filter
PWT2, the feeder ear of the sensor corresponding to one end of its 4th resistance of connection and probe power output circuit, the 4th electricity
The other end ground connection of resistance, the 4th electric capacity and the 4th resistor coupled in parallel.
In the present embodiment, the voltage letter of the voltage-stabilized power supply adjusted through single-chip microcomputer is accessed in the junction of magnetic bead and the 3rd electric capacity
Number, i.e. in Fig. 3 at FB1 end 2 voltage-stabilized power supply of 24_PWT1 connections output end, substantially through single-chip microcomputer control adjustment after
Voltage.The voltage-stabilized power supply of 24V or other magnitudes of voltage can be selected, depending on its voltage supply demand with specific reference to sensor, this
In embodiment, the voltage-stabilized power supply used is 24V voltage-stabilized power supply.
Typically in automotive system, if multiple sensors need to power, then identical probe power can be used
Output circuit carries out the output of a few road voltages, meets the requirement of actual circuit.Numerous single-chip microcomputer middle fingers determine single-chip microcomputer（The present embodiment
Middle finger single-chip microcomputer 10）Sensor 20 corresponding to connecting, controls this sensor 20 to send sensor and outputs signal to linear voltage stabilization
Device Q3, so as to be controlled to the working condition of linear voltage regulator, realize the power supply to sensor.
In summary, a kind of automobile power source of direct current transducer based on TLE7368-3E provided by the invention is in automobile
Numerous singlechip chips and sensor provide that stability is good and the power supply of suitable voltage.When power positive cathode connects
When anti-, input FET in reverse connection prevention protection circuit and be not turned on, then system can not normally upper electricity, that is, when voltage stabilizing electricity
Circuit cisco unity malfunction during the reversal connection of source, protect the work safety of whole power circuit.Pass through the first filter circuit, the second filtering
Circuit and the 3rd filter circuit filter out clutter so that the voltage obtained in circuit is more stable, make single-chip microcomputer in automobile with
And working sensor is more stable.Using TLE7368-3E chips, voltage is switched into 5V, 3.3V and 1.5V to meet each single-chip microcomputer pair
The requirement of power supply, circuit efficiency are higher.Probe power output circuit is the sensor of numerous inconsistent voltage requirements in automobile
Convenient and stable power supply is provided, ensures the stabilization of automobile powered operation.
Disclosed above is only the specific embodiment of the application, but the application is not limited to this, any this area
Technical staff can think change, should all fall in the protection domain of the application.
Claims (7)
1. a kind of automobile power source of the direct current transducer based on TLE7368-3E, it is the single-chip microcomputer in automobile and sensor confession
Electricity, it is characterised in that export electricity including voltage-stabilized power supply, power-switching circuit, power supply input circuit and some probe powers
Road, wherein：
The power-switching circuit includes TLE7368-3E chips and its peripheral circuit；
Input reverse connection prevention protection circuit, the first wave filter and the first power supply that the power supply input circuit includes being sequentially connected are anti-
Current feed circuit；The input of the input reverse connection prevention protection circuit connects the voltage-stabilized power supply, the input reverse connection prevention protection circuit
Output end connect first wave filter, the output end of first wave filter and the input of first power feedback
End connection；
The output end of first power feedback feeds back to the single-chip microcomputer in the automobile, and single-chip microcomputer passes through in the automobile
The voltage of reception comes the output end of voltage-stabilized power supply described in adjustment control, the voltage output end connection of first power feedback
The feeder ear of the TLE7368-3E chips, the power output end of the TLE7368-3E chips connect the single-chip microcomputer of the automobile
Feeder ear；
The probe power output circuit includes the linear voltage regulator, the second wave filter and the 3rd filtering being sequentially connected
Device, the input of the linear voltage regulator input the input connection institute of the sensor output signal and the linear voltage regulator
State the output end of voltage-stabilized power supply, the output end of the linear voltage regulator connects the input of second wave filter, and described second
The output end of wave filter connects the input of the 3rd wave filter and the output end of the voltage-stabilized power supply, the 3rd filtering
The output end of device connects the feeder ear of the sensor corresponding to the probe power output circuit；
The input reverse connection prevention protection circuit includes first of FET and both ends respectively in its output stage and grid
Resistance and diode composition, the diode cathode connect grid, negative pole connection output stage；
First resistor and second resistance are included in first power feedback, described in one end connection of the first resistor
The output end of FET, the other end connect one end of the second resistance, the feeder ear of the TLE7368-3E chips respectively
And the single-chip microcomputer in the automobile, the second resistance both ends one the 3rd electric capacity in parallel.
A kind of 2. automobile power source of the direct current transducer based on TLE7368-3E as claimed in claim 1, it is characterised in that institute
State single-chip microcomputer and connect the sensor, control the sensor to send sensor output signal.
3. a kind of automobile power source of the direct current transducer based on TLE7368-3E as claimed in claim 1, it is characterised in that also
Including a voltage-regulator diode and a protective resistance, the plus earth of the voltage-regulator diode, negative pole connects the FET
Output stage, one end ground connection of the protective resistance, the other end connects the grid of the FET.
A kind of 4. automobile power source of the direct current transducer based on TLE7368-3E as claimed in claim 1, it is characterised in that institute
State the first wave filter to be made up of the first electric capacity and the second electric capacity, first electric capacity and the second electric capacity are one end connection institute
State the output stage other end ground connection of FET.
A kind of 5. automobile power source of the direct current transducer based on TLE7368-3E as claimed in claim 1, it is characterised in that institute
It is TLE4251D to state linear voltage regulator.
A kind of 6. automobile power source of the direct current transducer based on TLE7368-3E as claimed in claim 1, it is characterised in that institute
Stating the second wave filter includes a magnetic bead and the 3rd electric capacity, and described magnetic bead one end connects the linear voltage regulator, the magnetic bead
The other end connects one end of the 3rd electric capacity；The other end ground connection of 3rd electric capacity.
A kind of 7. automobile power source of the direct current transducer based on TLE7368-3E as claimed in claim 6, it is characterised in that institute
Stating the 3rd wave filter includes 3rd resistor, the 4th resistance and the 4th electric capacity, and one end of the 3rd resistor connects the magnetic bead
With the tie point of the 3rd electric capacity, the other end of the 3rd resistor connects one end of the 4th resistance and the sensing respectively
The feeder ear of sensor corresponding to device power output circuit, the 4th resistance the other end ground connection, the 4th electric capacity with
4th resistor coupled in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410572079.5A CN104319991B (en) | 2014-10-23 | 2014-10-23 | A kind of automobile power source based on TLE7368 3E direct current transducers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410572079.5A CN104319991B (en) | 2014-10-23 | 2014-10-23 | A kind of automobile power source based on TLE7368 3E direct current transducers |
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| Publication Number | Publication Date |
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| CN104319991A CN104319991A (en) | 2015-01-28 |
| CN104319991B true CN104319991B (en) | 2017-12-12 |
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| CN201410572079.5A Active CN104319991B (en) | 2014-10-23 | 2014-10-23 | A kind of automobile power source based on TLE7368 3E direct current transducers |
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Families Citing this family (1)
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| CN107749711B (en) * | 2017-11-24 | 2020-01-03 | 芜湖岱梭微电子有限公司 | Voltage stabilizing circuit in electric automobile stroke |
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|---|---|---|---|---|
| CN101214796A (en) * | 2007-12-27 | 2008-07-09 | 上海交通大学 | Driverless electric automobile power supply system based on super capacitance |
| CN101961998A (en) * | 2010-09-09 | 2011-02-02 | 奇瑞汽车股份有限公司 | Low-power consumption control system of automobile electric trunk system and control method thereof |
| CN102665340A (en) * | 2012-05-03 | 2012-09-12 | 济南先锋新型节能灯具有限公司 | Auto-dimming high efficiency solar energy light emitting diode (LED) streetlight power source |
| CN202453717U (en) * | 2012-01-11 | 2012-09-26 | 沈阳中科正方新能源技术有限公司 | Intelligent vehicle controller |
| CN102700484A (en) * | 2012-06-15 | 2012-10-03 | 北京经纬恒润科技有限公司 | Power supply unit and car electronic control unit in car electronic control system |
-
2014
- 2014-10-23 CN CN201410572079.5A patent/CN104319991B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214796A (en) * | 2007-12-27 | 2008-07-09 | 上海交通大学 | Driverless electric automobile power supply system based on super capacitance |
| CN101961998A (en) * | 2010-09-09 | 2011-02-02 | 奇瑞汽车股份有限公司 | Low-power consumption control system of automobile electric trunk system and control method thereof |
| CN202453717U (en) * | 2012-01-11 | 2012-09-26 | 沈阳中科正方新能源技术有限公司 | Intelligent vehicle controller |
| CN102665340A (en) * | 2012-05-03 | 2012-09-12 | 济南先锋新型节能灯具有限公司 | Auto-dimming high efficiency solar energy light emitting diode (LED) streetlight power source |
| CN102700484A (en) * | 2012-06-15 | 2012-10-03 | 北京经纬恒润科技有限公司 | Power supply unit and car electronic control unit in car electronic control system |
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Effective date of registration: 20211117 Address after: 215101 1st, 2nd and 3rd floors of No.5 factory building, No.70 Yaofeng West Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: SUZHOU GEJU ELECTRONIC TECHNOLOGY CO.,LTD. Address before: No.1 Zhineng Avenue, Suzhou International Education Park, Suzhou, Jiangsu Province Patentee before: Suzhou Vocational Institute of Industrial Technology |