CN205544926U - Electricity heating control system 's the low voltage power supply circuit and vehicle - Google Patents
Electricity heating control system 's the low voltage power supply circuit and vehicle Download PDFInfo
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- CN205544926U CN205544926U CN201620224480.4U CN201620224480U CN205544926U CN 205544926 U CN205544926 U CN 205544926U CN 201620224480 U CN201620224480 U CN 201620224480U CN 205544926 U CN205544926 U CN 205544926U
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- Prior art keywords
- control system
- heating control
- electric
- low
- enable
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Abstract
The utility model provides an electricity heating control system's the low voltage power supply circuit and vehicle, wherein, this the low voltage power supply circuit includes: make the ability unit, make to be used for exporting enable signal by the unit, low dropout regulator, low dropout regulator have input, output and messenger and can hold, make to hold to link to each other with making the ability unit, and low dropout regulator is second voltage according to enable signal with an input received voltage conversion to export in order to give the power supply of the singlechip among the electric heating control system through the output, wherein, first voltage is greater than second voltage. According to the utility model discloses an electricity heating control system 's the low voltage power supply circuit can reduce the ripple of power, improves control accuracy, and its cost is lower simultaneously.
Description
Technical field
This utility model relates to technical field of automotive electronics, particularly to a kind of electric-heating control system low-voltage power circuit and
Vehicle.
Background technology
Automobile typically has electric heating system, in order to for preheating and the heating etc. of driver's cabin of electromotor.At present, automobile
In electric heating system mostly use Control, i.e. realized the power supply to electric heating system and power-off by relay.Limited
The adhesion problems the most often occurred in relay and the defect such as the service life of relay is low, use the electricity of Control
Heating system, stability and the reliability of control are poor.
At present, (Insulated Gate Bipolar Transistor, insulated gate is double to use Single-chip Controlling IGBT in correlation technique
Bipolar transistor) mode realize the control to electric heating system, DC/DC changer provide low-tension supply for single-chip microcomputer.
But owing to the ripple of general DC/DC changer out-put supply is relatively big, have impact on the control performance of single-chip microcomputer, thus reduce
The control accuracy of electric-heating control system.Meanwhile, in aforesaid way, the circuit providing power supply for single-chip microcomputer is complex,
The components and parts used are more, and therefore manufacturing cost is the highest.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, this practicality is new
One purpose of type is to propose the low-voltage power circuit of a kind of electric-heating control system, it is possible to reduce the ripple of power supply, improves
Control accuracy, its cost is relatively low simultaneously.
Another purpose of the present utility model is to propose a kind of vehicle.
The low-voltage power circuit of the electric-heating control system according to this utility model first aspect embodiment, including: enable unit,
Described enable unit is in order to export enable signal；Low pressure difference linear voltage regulator, described low pressure difference linear voltage regulator have input,
Outfan and Enable Pin, described Enable Pin is connected with described enable unit, and described low pressure difference linear voltage regulator is according to described enable
The first voltage that described input is received by signal is converted to the second voltage, and carries out exporting with to electricity by described outfan
Single-chip microcomputer in heating control system is powered, and wherein, described first voltage is more than described second voltage.
According to the low-voltage power circuit of electric-heating control system of the present utility model, by low pressure difference linear voltage regulator to power supply electricity
After source is changed, power for the single-chip microcomputer in electric-heating control system, stablizing of electric-heating control system can not only be improved
Property and reliability, also use low pressure difference linear voltage regulator and have that noise is low, PSRR advantages of higher by oneself, substantially reduce
The ripple of single-chip microcomputer input power, improves the control accuracy of electric-heating control system.Meanwhile, the peripheral electricity needed for this circuit
Road can be relatively simple, reduces manufacturing cost.
It addition, can also have as follows according to the low-voltage power circuit of the electric-heating control system of this utility model above-described embodiment
Additional technical characteristic:
According to an embodiment of the present utility model, described input is also associated with anti-reverse unit, and described anti-reverse unit is used
To prevent from being connected to the power supply both positive and negative polarity reversal connection of described input.
Further, described anti-reverse unit includes the first diode, the anode of described first diode and described power supply
Being connected, the negative electrode of described first diode is connected with described input.
Further, described circuit also includes: two-way transient supression diode, and described two-way transient supression diode is with described
First diodes in parallel.
Further, between described input and described anti-reverse unit, the first filter unit, described first filter it are also associated with
Ripple unit is filtered processing in order to the first voltage receiving described input.
Specifically, described first filter unit includes: the first electric capacity, and one end of described first electric capacity is connected with described input,
The other end ground connection of described first electric capacity；Second electric capacity, described second electric capacity is in parallel with described first electric capacity；First stabilivolt,
The anode of described first stabilivolt be connected with the other end of described first electric capacity after ground connection, the negative electrode of described first stabilivolt and institute
The one end stating the first electric capacity is connected.
According to an embodiment of the present utility model, described enable unit includes that the first enable assembly and second enables assembly, institute
Stating the first enable assembly and the second enable assembly is connected with described Enable Pin respectively, described first enables assembly in order to export outside
Enable signal is to described Enable Pin, and described second enable assembly is in order to export the internal signal extremely described Enable Pin that enables, wherein,
It is steady to described low pressure difference linearity that described single-chip microcomputer enables assembly when described outside enable blackout being detected by described second
Depressor injects described internal enable signal, so that described electric-heating control system time delay power down.
Further, described first enables assembly includes the second diode, and described second enables assembly includes the 3rd diode,
Wherein, described second diode and described 3rd diode inject institute to described low pressure difference linear voltage regulator by the way of to top
State enable signal.
According to the vehicle of this utility model second aspect embodiment, add including according to the electricity of this utility model first aspect embodiment
The low-voltage power circuit of thermal control system.
According to vehicle of the present utility model, after power supply being changed by low pressure difference linear voltage regulator, for electrical heating control
Single-chip microcomputer in system processed is powered, and can not only improve stability and the reliability of electric-heating control system, also use low pressure
Difference linear constant voltage regulator has that noise is low, PSRR advantages of higher by oneself, substantially reduces the ripple of single-chip microcomputer input power, carries
The high control accuracy of electric-heating control system.Simultaneously as the peripheral circuit needed for this circuit can be relatively simple, reduce
The manufacturing cost of vehicle.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the low-voltage power circuit according to electric-heating control system of the present utility model；
Fig. 2 is the circuit diagram of the low-voltage power circuit according to electric-heating control system of the present utility model.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to limit of the present utility model
System.
Low-voltage power circuit and the vehicle of electric-heating control system of the present utility model are described below in conjunction with the accompanying drawings.
Fig. 1 is the structured flowchart of the low-voltage power circuit according to electric-heating control system of the present utility model.
As it is shown in figure 1, the low-voltage power circuit of electric-heating control system of the present utility model, including: enable unit 10 and low
Pressure reduction linear voltage regulator 20.
Wherein, enable unit 10 in order to export enable signal, low pressure difference linear voltage regulator 20 have input, outfan and
Enable Pin, Enable Pin is connected with enabling unit 10, and input is received by low pressure difference linear voltage regulator 20 according to enabling signal
The first voltage be converted to the second voltage, and carry out exporting to power to the single-chip microcomputer in electric-heating control system by outfan,
Wherein, the first voltage is more than the second voltage.
In this utility model, input also can connect anti-reverse unit 30, and anti-reverse unit 30 is defeated in order to prevent from being connected to
Enter the power supply both positive and negative polarity reversal connection of end.In this utility model, between input and anti-reverse unit 30, it is also associated with first
Filter unit 40, the first filter unit 40 is filtered processing in order to the first voltage receiving input.
Fig. 2 is the circuit diagram of the low-voltage power circuit according to electric-heating control system of the present utility model.As in figure 2 it is shown, can
When vehicle sends key signal KL30, power supply passing through anti-reverse unit 30 is low pressure difference linear voltage regulator 20
Input I provides the first voltage, and wherein, the first voltage can be 12V.In this utility model, anti-reverse unit 30 can wrap
Including the first diode D1, the anode of the first diode D1 can be connected with power supply, and the negative electrode of the first diode D1 can be with
Input I is connected.It addition, as in figure 2 it is shown, circuit may also include two-way transient supression diode D2, two-way transient supression
Diode D2 can be in parallel with the first diode D1.
As in figure 2 it is shown, the first filter unit 40 can include the first electric capacity C1, the second electric capacity C2 and the first stabilivolt Da.
Wherein, one end of the first electric capacity C1 can be connected with input I, the other end of the first electric capacity C1 can ground connection, the second electric capacity C2
Can be in parallel with the first electric capacity C1, the anode of the first stabilivolt Da can be connected with the other end of the first electric capacity C1 after ground connection, the
The negative electrode of one stabilivolt Da can be connected with one end of the first electric capacity C1.In this utility model, the capacitance of the first electric capacity C1
Higher, such as, can be 22 μ F, can be used for filtering the low frequency signal in the first voltage, the capacitance of the second electric capacity C2 is relatively low,
Such as, can be 0.1 μ F, can be used for filtering the high-frequency signal in the first voltage.
First voltage of input I can be converted to the second voltage by low pressure difference linear voltage regulator 20, and is exported by outfan Q,
To power to the single-chip microcomputer in electric-heating control system, wherein, the second voltage can be 5V.Low pressure difference linear voltage regulator 20 is also
Can have dead end NC and earth terminal GND, in this utility model, dead end NC and earth terminal GND can equal ground connection.As
Shown in Fig. 2, in this utility model, the second voltage of outfan Q output filters ripple also by the 3rd electric capacity C3.
According to the low-voltage power circuit of electric-heating control system of the present utility model, by low pressure difference linear voltage regulator to power supply electricity
After source is changed, power for the single-chip microcomputer in electric-heating control system, stablizing of electric-heating control system can not only be improved
Property and reliability, also use low pressure difference linear voltage regulator and have that noise is low, PSRR advantages of higher by oneself, substantially reduce
The ripple of single-chip microcomputer input power, improves the control accuracy of electric-heating control system.Meanwhile, the peripheral electricity needed for this circuit
Road can be relatively simple, reduces manufacturing cost.
Additionally, as in figure 2 it is shown, in this utility model, enable unit 10 and can include that the first enable assembly 11 and second makes
Can assembly 12.First enables assembly 11 is connected with Enable Pin EN respectively with the second enable assembly 12, and first enables assembly 11
In order to export the outside signal that enables to Enable Pin EN, second enables assembly 12 in order to export the internal signal that enables to Enable Pin EN,
Wherein, single-chip microcomputer enables assembly 12 to low pressure difference linear voltage regulator 20 when outside enable blackout being detected by second
Inject internal enable signal, so that electric-heating control system time delay power down.In this utility model, first enables assembly 11 can
Including the second diode D3, may also include resistance Ra-Rd and the second stabilivolt Db.Second enables assembly 12 can include the
Three diode D4, may also include resistance Re.Second diode D3 and the 3rd diode D4 can be to low by the way of to top
Pressure reduction linear voltage regulator 20 injects and enables signal.Thus, it is possible not only to realize outside enable of low-voltage power circuit is controlled,
Also can realize the function of electric-heating control system time delay power down.
Corresponding above-described embodiment, this utility model also proposes a kind of vehicle.
Vehicle of the present utility model includes the low-tension supply electricity of the electric-heating control system according to this utility model above-described embodiment
Road, its specific embodiment can refer to above-described embodiment, for avoiding redundancy, does not repeats them here.
According to vehicle of the present utility model, after power supply being changed by low pressure difference linear voltage regulator, for electrical heating control
Single-chip microcomputer in system processed is powered, and can not only improve stability and the reliability of electric-heating control system, also use low pressure
Difference linear constant voltage regulator has that noise is low, PSRR advantages of higher by oneself, substantially reduces the ripple of single-chip microcomputer input power, carries
The high control accuracy of electric-heating control system.Simultaneously as the peripheral circuit needed for this circuit can be relatively simple, reduce
The manufacturing cost of vehicle.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ",
Orientation or the position relationship of the instruction such as " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " are based on accompanying drawing
Shown orientation or position relationship, be for only for ease of description this utility model and simplify description rather than instruction or hint institute
The device that refers to or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality
With novel restriction.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or
The implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or hidden
One or more this feature are included containing ground.In description of the present utility model, " multiple " be meant that two or two with
On, unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing "
Should be interpreted broadly Deng term, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be
It is mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of individual element internal or the interaction relationship of two elements.For the ordinary skill in the art, Ke Yigen
Above-mentioned term concrete meaning in this utility model is understood according to concrete condition.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can
Being that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, the
One feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper,
Or it is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " under
Face " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than the
Two features.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be
Any one or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out
In conjunction with and combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as restriction of the present utility model, those of ordinary skill in the art can in the range of this utility model
Above-described embodiment be changed, revise, to replace and modification.
Claims (9)
1. the low-voltage power circuit of an electric-heating control system, it is characterised in that including:
Enabling unit, described enable unit is in order to export enable signal；
Low pressure difference linear voltage regulator, described low pressure difference linear voltage regulator has input, outfan and Enable Pin, described enable
End is connected with described enable unit, and described input is received by described low pressure difference linear voltage regulator according to described enable signal
First voltage is converted to the second voltage, and carries out exporting to supply to the single-chip microcomputer in electric-heating control system by described outfan
Electricity, wherein, described first voltage is more than described second voltage.
The low-voltage power circuit of electric-heating control system the most according to claim 1, it is characterised in that described input
Being also associated with anti-reverse unit, described anti-reverse unit is in order to prevent from being connected to the power supply both positive and negative polarity reversal connection of described input.
The low-voltage power circuit of electric-heating control system the most according to claim 2, it is characterised in that described anti-reverse
Unit includes that the first diode, the anode of described first diode are connected with described power supply, the moon of described first diode
Pole is connected with described input.
The low-voltage power circuit of electric-heating control system the most according to claim 3, it is characterised in that also include:
Two-way transient supression diode, described two-way transient supression diode and described first diodes in parallel.
The low-voltage power circuit of electric-heating control system the most according to claim 2, it is characterised in that in described input
Being also associated with the first filter unit between end and described anti-reverse unit, described first filter unit is in order to described input termination
The first voltage received is filtered processing.
The low-voltage power circuit of electric-heating control system the most according to claim 5, it is characterised in that described first filter
Ripple unit includes:
First electric capacity, one end of described first electric capacity is connected with described input, the other end ground connection of described first electric capacity；
Second electric capacity, described second electric capacity is in parallel with described first electric capacity；
First stabilivolt, the anode of described first stabilivolt be connected with the other end of described first electric capacity after ground connection, described first
The negative electrode of stabilivolt is connected with one end of described first electric capacity.
7. according to the low-voltage power circuit of the electric-heating control system according to any one of claim 1-6, it is characterised in that
Described enable unit includes that the first enable assembly and second enables assembly, and described first enables assembly and second enables assembly respectively
Being connected with described Enable Pin, described first enables assembly enables signal extremely described Enable Pin in order to export outside, and described second makes
Can enable signal extremely described Enable Pin in order to export inside by assembly, wherein, described single-chip microcomputer is detecting that described outside enable is believed
Enable assembly by described second when number disappearing to inject to described low pressure difference linear voltage regulator and described internal enable signal, so that institute
State electric-heating control system time delay power down.
The low-voltage power circuit of electric-heating control system the most according to claim 7, it is characterised in that described first makes
Can include the second diode by assembly, described second enables assembly includes the 3rd diode, wherein, described second diode and institute
State the 3rd diode and inject described enable signal to described low pressure difference linear voltage regulator by the way of to top.
9. a vehicle, it is characterised in that include according to the electric-heating control system according to any one of claim 1-8
Low-voltage power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620224480.4U CN205544926U (en) | 2016-03-22 | 2016-03-22 | Electricity heating control system 's the low voltage power supply circuit and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620224480.4U CN205544926U (en) | 2016-03-22 | 2016-03-22 | Electricity heating control system 's the low voltage power supply circuit and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205544926U true CN205544926U (en) | 2016-08-31 |
Family
ID=56784453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620224480.4U Expired - Fee Related CN205544926U (en) | 2016-03-22 | 2016-03-22 | Electricity heating control system 's the low voltage power supply circuit and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205544926U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444150A (en) * | 2017-07-27 | 2017-12-08 | 北京新能源汽车股份有限公司 | A kind of electromagnetic interference suppresses wake-up circuit and electric automobile |
| CN112803715A (en) * | 2020-12-31 | 2021-05-14 | 深圳市云鼠科技开发有限公司 | Circuit steady voltage prevents flowing backward circuit |
-
2016
- 2016-03-22 CN CN201620224480.4U patent/CN205544926U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444150A (en) * | 2017-07-27 | 2017-12-08 | 北京新能源汽车股份有限公司 | A kind of electromagnetic interference suppresses wake-up circuit and electric automobile |
| CN112803715A (en) * | 2020-12-31 | 2021-05-14 | 深圳市云鼠科技开发有限公司 | Circuit steady voltage prevents flowing backward circuit |
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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 |
Granted publication date: 20160831 Termination date: 20210322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |