CN109795429A - A kind of Vehicle Controller power-supply system of discontinuous work - Google Patents
A kind of Vehicle Controller power-supply system of discontinuous work Download PDFInfo
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Abstract
The present invention provides a kind of Vehicle Controller power circuit of discontinuous work, peak clipping processing is carried out to car power supply voltage by surge suppression modules first, then by peak clipping, treated that car power supply voltage is smoothed, the car power supply voltage after smoothing processing is finally subjected to secondary pressure, it is micro-control unit power supply after within the scope of the maximum withstanding voltage of the original near power supply chip module of car power supply voltage, then through power supply chip module；The technical solution that combines of Surge suppression, filtering and secondary pressure in this way, it can substantially reduce since too low breakdown voltage being arranged for surge suppression modules, lead to the risk that surge suppression modules are frequently breakdown and damage, also the input voltage of power supply chip module can be guaranteed in its maximum withstanding voltage range, influence of the voltage chopping to power supply chip module when eliminating large current load work, entire power circuit can pass through the test of ISO7637-2 standard, with relatively reliable stable performance, cost is lower.
Description
Technical field
The invention belongs to power system design technical field more particularly to a kind of Vehicle Controller power supplys of discontinuous work
System.
Background technique
With the development of vehicle electric technology, the quantity of bicycle vehicle electronic device is sharply increased, such as Car's door controlling, skylight
Control, vehicle mounted guidance and audio-video system, burglary-resisting system, air-conditioning system, parking heater etc..The core of these electronic equipments is single
Piece machine system, power supply are generally 3.3 volts or 5 volts, need reliable and stable power-supplying circuit.Such as 24 volts of electricity
Bottle vehicle, can choose the linear power supply chip of suitable vehicle electric, such as TLE4263 or TLE4271, and switch electricity also may be selected
Source chip, such as LMS4832 or LMS2576H etc..
Although said chip has wider input voltage range, it can be resistant to 40 volt of -60 volt input voltage, practiced
Show that said chip still has very high damage ratio if the protection part in power input is dealt with improperly.Its reason master
If " throw load " phenomenon may occur in the various inductive load make and break process of vehicle since vehicle electric environment is complicated,
So as to cause the surge impact of very high voltage, transient voltage even can achieve 200 volts or so, that is to say, that if various vehicles
Set controller protection is improper, easily causes the damage of component on controller circuit board；Therefore, high performance vehicle power supply design
It is the guarantee of vehicle electronic device reliably working.
In existing Vehicle Controller power-supply system, surge suppression modules are often only provided with, it is without secondary pressure, then unrestrained
The breakdown voltage setting for gushing suppression module is lower, and the number of the breakdown conducting of surge suppression modules very frequently will be easy damage
It is bad.And exist in the prior art in order to solve the problems, such as to use merely surge suppression modules to carry out surge protection, general use has
The scheme of source voltage protection；Its thought be when power supply voltage in the normal range when, surge voltage detection circuit control electricity
Sub switch is held on, electrical equipment normal power supply；When there is surge in power supply, and voltage exceeds normal range (NR), surge voltage inspection
Slowdown monitoring circuit control electronic switch disconnects immediately, prevents surge voltage from causing to impact to electrical equipment, reaches protection electrical equipment
Purpose.The scheme of this active voltage protection is the disadvantage is that due to using discrete component design, charging time and resistance capacitance value
Surge protection can only be carried out to chip by calculating, cannot absorb surge energy fundamentally to protect whole system, including
Power component.
Summary of the invention
To solve the above problems, the present invention provides a kind of Vehicle Controller power-supply system of discontinuous work, it can be significantly
It reduces since too low breakdown voltage being arranged for surge suppression modules, causes surge suppression modules frequently breakdown and the wind of damage
Danger can also guarantee the input voltage of power supply chip module in its maximum withstanding voltage range, when eliminating large current load work
Influence of the voltage chopping to power supply chip module.
A kind of Vehicle Controller power-supply system of discontinuous work, be applied to Vehicle Controller, including panel-switch module,
Relay module, surge suppression modules, self-locking module, filter module, Voltage stabilizing module, power supply chip module and microcontroller list
Member；
The panel-switch module be used for control the relay module power on and power down, wherein when panel-switch mould
When powering on channel start of block, panel-switch module exports car power supply voltage to the relay module, so that the relay
Device module powers on；When the power down channel start of panel-switch module, panel-switch module exports low to the micro-control unit
Level signal, then micro-control unit exports low level signal to the self-locking module, then relay module is with self-locking module
Power down and power down；
The micro-control unit is used to export high level signal to self-locking module when powering on, in falling for panel-switch module
When electric channel starting or the micro-control unit detection Vehicle Controller break down, Xiang Zisuo module exports low level signal；
The relay module for exporting car power supply voltage after the power-up；
The car power supply voltage that the surge suppression modules are used to export relay module carries out peak clipping processing；
The self-locking module is used to receive the high level signal of micro-control unit output, and that treated is vehicle-mounted with process peak clipping
Supply voltage, it is self-locking to control the relay module, is kept powered on state；It is also used to receive the low level of micro-control unit output
Signal controls the relay module power down；
The filter module is used for described that treated that car power supply voltage is smoothed by peak clipping；
The Voltage stabilizing module is used to the car power supply voltage Jing Guo smoothing processing carrying out secondary pressure, so that by secondary
Car power supply voltage after pressure stabilizing is within the scope of the maximum withstanding voltage of the power supply chip module；
The power supply chip module is then micro-control unit confession for receiving the car power supply voltage after secondary pressure
Electricity.
Further, the panel-switch module includes startup switch, shutdown switch and diode D1, D2；
Startup switch one end access car power supply voltage, the anode of another terminating diode D1, meanwhile, diode D1
First output end of the cathode as panel-switch module, for when the startup switch is connected, Xiang Suoshu relay module
Export car power supply voltage；
Shutdown switch one end ground connection, the cathode of another terminating diode D2, meanwhile, the anode of diode D2 is as face
The second output terminal of switching plate module, for exporting low level signal to micro-control unit when the shutdown switch connection.
Further, the relay module includes relay and diode D3, and wherein relay includes coil and switch
K；
The coil and diode D3 are in parallel, and the plus earth of diode D3, and panel-switch is accessed in described coil one end
The car power supply voltage of module output, other end ground connection, for after the car power supply voltage of access panel-switch module output
Power on, and coil power on after control switch K closure；
Vehicle power supply signal, output end of the other end as relay module, for being closed are accessed in the one end the switch K
When to the surge suppression modules export itself access car power supply voltage；
The self-locking module includes NMOS tube Q1, triode Q2 and resistance R1~R3；
First input end of the source electrode of the NMOS tube Q1 as self-locking module, it is defeated for accessing the surge suppression modules
Out by peak clipping treated car power supply voltage；
Output end of the drain electrode as self-locking module of the NMOS tube Q1, for when NMOS tube Q1 is connected, Xiang Suoshu after
Electrical appliance module output is by peak clipping treated car power supply voltage；
One end of the grid connecting resistance R1 of the NMOS tube Q1, and the collector of another termination triode Q2 of resistance R1；Electricity
Hinder the base stage of the one end R3 connecting triode Q2, the emitter of other end connecting triode Q2；The emitter of triode Q2 is grounded, base
One end of pole connecting resistance R2, meanwhile, second input terminal of the resistance R2 other end as self-locking module, for accessing micro-control unit
Given high level signal/low level signal controls the ON/OFF of triode Q2, to control NMOS tube Q1 conducting/pass
It is disconnected.
Optionally, the car power supply voltage is 24V.
Further, the surge suppression modules include diode D4, D5；
The anode of the anode connection diode D5 of the diode D4, and the minus earth of diode D5；
The cathode of the diode D4 is used as the input terminal and output end of surge suppression modules simultaneously, be respectively used to receive after
The car power supply voltage of electrical appliance module output, and export by peak clipping treated car power supply voltage.
Further, the filter module includes inductance L1 and capacitor C1, C2；
Input terminal and output end of the both ends of the inductance L1 respectively as filter module, wherein input terminal is for accessing
Surge suppression modules output by peak clipping treated car power supply voltage, output end for accessing external high level,
And the car power supply voltage after smoothing processing is exported to Voltage stabilizing module；
The input terminal of the anode connection inductance L1 of the capacitor C1, cathode ground connection；
The output end of the anode connection inductance L1 of the capacitor C2, cathode ground connection.
Further, the Voltage stabilizing module includes triode Q3, capacitor C3, resistance R4 and diode D5, D6；
Input terminal of the anode of the diode D5 as Voltage stabilizing module, for accessing the process of the filter module output
Car power supply voltage after smoothing processing；
The cathode of the collector connection diode D5 of the triode Q3, base stage connect the cathode of diode D6, emitter
As the output end of Voltage stabilizing module, for connecting the anode of capacitor C3, and to power supply chip module output by secondary steady
Car power supply voltage after pressure；
The plus earth of the diode D6；The collector of the one end resistance R4 connecting triode Q3, the other end connect three poles
The base stage of pipe Q3；The cathode of capacitor C3 is grounded.
Further, input voltage lower margin and output voltage the lower margin ground connection of the power supply chip module, input voltage pipe
Foot accesses the car power supply voltage after the secondary pressure of the Voltage stabilizing module output, and output voltage pin is used for micro-control unit
Export 5V/3.3V power supply.
The utility model has the advantages that
The present invention provides a kind of Vehicle Controller power-supply system of discontinuous work, first by surge suppression modules to vehicle
It carries supply voltage and carries out peak clipping processing, then treated that car power supply voltage is smoothed by peak clipping, finally will be smooth
Treated, and car power supply voltage carries out secondary pressure, and the maximum of the original near power supply chip module of car power supply voltage is resistance to
It is micro-control unit power supply after in voltage range, then through power supply chip module；Surge suppression, filtering and secondary steady in this way
The technical solution combined is pressed, can substantially reduce since too low breakdown voltage being arranged for surge suppression modules, lead to surge
The risk that suppression module is frequently breakdown and damages can also guarantee the input voltage of power supply chip module in its maximum tolerance electricity
Range is pressed, influence of the voltage chopping to power supply chip module, entire power-supply system can pass through when eliminating large current load work
The test of ISO7637-2 standard, has relatively reliable stable performance, and cost is lower.
Detailed description of the invention
Fig. 1 is a kind of functional block diagram of the Vehicle Controller power-supply system of discontinuous work provided by the invention；
Fig. 2 is left the half of a kind of circuit diagram of the Vehicle Controller power-supply system of discontinuous work provided by the invention
Part；
Fig. 3 is right the half of a kind of circuit diagram of the Vehicle Controller power-supply system of discontinuous work provided by the invention
Part.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described.
Embodiment one
Referring to Fig. 1, which is a kind of principle of the Vehicle Controller power-supply system of discontinuous work provided in this embodiment
Block diagram.
A kind of Vehicle Controller power-supply system of discontinuous work, be applied to Vehicle Controller, including panel-switch module,
Relay module, surge suppression modules, self-locking module, filter module, Voltage stabilizing module, power supply chip module and microcontroller list
Member；
The panel-switch module be used for control the relay module power on and power down, wherein when panel-switch mould
When powering on channel start of block, panel-switch module exports car power supply voltage to the relay module, so that the relay
Device module powers on；When the power down channel start of panel-switch module, panel-switch module is to micro-control unit
(Microcontroller Unit；MCU low level signal) is exported, then micro-control unit exports low electricity to the self-locking module
Ordinary mail number, then relay module power down with the power down of self-locking module；
The micro-control unit is used to export high level signal to self-locking module when powering on, in falling for panel-switch module
When electric channel starting or the micro-control unit detection Vehicle Controller break down, Xiang Zisuo module exports low level signal；
The relay module for exporting car power supply voltage after the power-up；
The car power supply voltage that the surge suppression modules are used to export relay module carries out peak clipping processing；
The self-locking module is used to receive the high level signal of micro-control unit output by peak clipping treated vehicle mounted electric
Source voltage, it is self-locking to control the relay module, is kept powered on state；It is also used to receive the low level letter of micro-control unit output
Number, control the relay module power down；
The filter module is used for described that treated that car power supply voltage is smoothed by peak clipping；
The Voltage stabilizing module is used to the car power supply voltage Jing Guo smoothing processing carrying out secondary pressure, so that by secondary
Car power supply voltage after pressure stabilizing is within the scope of the maximum withstanding voltage of the power supply chip module；
The power supply chip module is then micro-control unit confession for receiving the car power supply voltage after secondary pressure
Electricity.
It should be noted that the discontinuous work of power-supply system, it is seasonal to refer to that power-supply system has the characteristics that, only certain
Period, if winter works, rather than the course of work of a duration；Wherein, the Car's door controlling system in vehicle electronic device
System, sunroof control system, air-conditioning system, parking heater etc., the characteristics of all having this period, discontinuous work.Due to
Vehicle electric environment is complicated, and " throw load " phenomenon may occur in the various inductive load make and break process of vehicle, so as to cause
The very surge impact of high voltage easily causes component on controller circuit board if the protection of various Vehicle Controllers is improper
Damage.And parking heater only just uses in winter, if in the season not used or when not in use, controller circuit board
It is still powered on, undoubtedly will increase the risk of circuit board damage.That is, the Vehicle Controller power-supply system of the present embodiment is not
When work, the contact of relay is open, i.e., whole circuit board is not charged；Due to not charged, then on vehicle power supply wave
Dynamic or various interference would not influence the circuit board of Vehicle Controller power-supply system, so that also ensure that circuit board can
By property.For example, the peak value of the surge voltage of the car power supply voltage of 24V can achieve 200V or so when " throw load " occurs,
The duration of its shock pulse is that can achieve 350ms, and generally conventional design is difficult to meet the 5a test of ISO7637-2,
If power system design does not have special consideration, also charged when not working, surge voltage will result in Vehicle Controller electronics
Component burns damage.
In the Vehicle Controller power-supply system of the prior art, surge suppression modules are often only provided with, without secondary pressure,
Disposably the surge peak value of car power supply voltage 200V is down within the scope of the maximum withstanding voltage of power supply chip module, such as 40V；
That is, in the state of the art, the breakdown voltage of surge suppression modules can be directly disposed as 40V, as long as vehicle in this way
The peak value for carrying the surge voltage of supply voltage is more than 40V, and the diode in surge suppression modules will puncture conducting, to pass through
Fever and discharge be more than 40V crest voltage part；Therefore, in the power-supply system of existing Vehicle Controller, due to only unrestrained
Suppression module is gushed, then the breakdown voltage setting of surge suppression modules is lower, then the number of the breakdown conducting of surge suppression modules will
Can be very frequent, it is easily damaged, causes power supply and ground wire direct short-circuit.In addition, existing power-supply system cannot be guaranteed power supply core
The input voltage of piece module is within the scope of its maximum withstanding voltage, the reason is that since there are one for the breakdown voltages of surge suppression modules
Fixed error, it is possible to when the peak value of the surge voltage of car power supply voltage is more than 80V, can just puncture conducting；That is,
Voltage drop input power chip module lower than 80V, and 80V alreadys exceed the maximum withstanding voltage range of power supply chip module
40V, to increase the risk that power supply chip module is burnt out.
And the present embodiment passes through surge suppression modules first and carries out peak clipping processing to car power supply voltage, it then will be at peak clipping
Car power supply voltage after reason is smoothed, and the car power supply voltage after smoothing processing is finally carried out secondary pressure, will
After within the scope of the maximum withstanding voltage of the near power supply chip module of original car power supply voltage, then by power supply chip module it is
Micro-control unit power supply；For example, setting 80V for the breakdown voltage of surge suppression modules, then by filter module to the electricity of 80V
Pressure is smoothed, finally by secondary pressure module by the car power supply voltage of 80V be down to 40 hereinafter, it can be seen that this
The technical solution that sample Surge suppression, filtering and secondary pressure combine can be substantially reduced due to setting for surge suppression modules
Too low breakdown voltage is set, causes surge suppression modules frequently breakdown and the risk of damage, can also guarantee power supply chip mould
The input voltage of block is in its maximum withstanding voltage range, and voltage chopping is to power supply chip module when eliminating large current load work
It influences, entire power-supply system can have relatively reliable stable performance by the test of ISO7637-2 standard, and cost is lower.
Embodiment two
Based on above embodiments, the present embodiment provides a kind of specific realities of the Vehicle Controller power-supply system of discontinuous work
Existing mode.Referring to figs. 2 and 3, the Vehicle Controller power-supply system of a kind of discontinuous work respectively provided in this embodiment
The left-half and right half part of circuit diagram.
A kind of Vehicle Controller power-supply system of discontinuous work, including the suppression of panel-switch module, relay module, surge
Molding block, self-locking module, filter module, Voltage stabilizing module and power supply chip module；
A kind of implementation of panel-switch module is introduced first.
The panel-switch module includes startup switch, shutdown switch and diode D1, D2；
Startup switch one end access car power supply voltage, the anode of another terminating diode D1, meanwhile, diode D1
First output end of the cathode as panel-switch module, for when the startup switch is connected, Xiang Suoshu relay module
Export car power supply voltage；
Shutdown switch one end ground connection, the cathode of another terminating diode D2, meanwhile, the anode of diode D2 is as face
The second output terminal of switching plate module, for exporting low level signal to micro-control unit when the shutdown switch connection.
A kind of implementation of surge suppression modules is described below.
The surge suppression modules include diode D4, D5；
The anode of the anode connection diode D5 of the diode D4, and the minus earth of diode D5；
The cathode of the diode D4 is used as the input terminal and output end of surge suppression modules simultaneously, be respectively used to receive after
The car power supply voltage of electrical appliance module output, and export by peak clipping treated car power supply voltage.
It should be noted that the traditional design method of surge suppression modules is arranged in the front end of electric power incoming line.This implementation
Example circuit is different from traditional design method, surge suppression modules is arranged in after relay contact, so that controlling
The impact of diode when device does not work in surge suppression modules from surge voltage.If without relay, Surge suppression mould
Block one is directly on vehicle power supply, as long as there is surge impact, the diode in surge suppression modules will work, actually
The electrical equipment on power supply is connected to for other and has started Surge suppression effect, but frequent surge impact can shorten Surge suppression
The service life of diode in module.
The diode D5 of the present embodiment plays the role of preventing electric voltage reverse-connection, while can absorb the surge punching of negative sense
It hits.Diode D1 can prevent electric voltage reverse-connection simultaneously, and relay will not be attracted after electric voltage reverse-connection.
A kind of implementation of relay module is described below.
The relay module includes relay and diode D3, and wherein relay includes coil and switch K；
The coil and diode D3 are in parallel, and the plus earth of diode D3, two poles in cathode junction switching plate module
The cathode of pipe D1, the car power supply voltage of coil one end access panel-switch module output, other end ground connection, for connecing
Powered on after entering the car power supply voltage of panel-switch module output, and coil power on after control the switch K and be closed；
Vehicle power supply signal, output end of the other end as relay module, for being closed are accessed in the one end the switch K
When to the surge suppression modules export itself access car power supply voltage.
Optionally, the car power supply voltage is 24V.
A kind of implementation of self-locking module is described below.
The self-locking module includes NMOS tube Q1, triode Q2 and resistance R1~R3；
First input end of the source electrode of the NMOS tube Q1 as self-locking module connects diode D4 in surge suppression modules
Cathode, for access surge suppression modules output by peak clipping treated car power supply voltage；
Output end of the drain electrode as self-locking module of the NMOS tube Q1, for when NMOS tube Q1 is connected, Xiang Suoshu after
Electrical appliance module output is by peak clipping treated car power supply voltage；
One end of the grid connecting resistance R1 of the NMOS tube Q1, and the collector of another termination triode Q2 of resistance R1；Electricity
Hinder the base stage of the one end R3 connecting triode Q2, the emitter of other end connecting triode Q2；The emitter of triode Q2 is grounded, base
One end of pole connecting resistance R2, meanwhile, second input terminal of the resistance R2 other end as self-locking module, for accessing micro-control unit
Given high level signal/low level signal controls the ON/OFF of triode Q2, to control NMOS tube Q1 conducting/pass
It is disconnected.
It should be noted that when the startup switch of panel-switch module is pressed, the upper electric channel of panel-switch module
Be switched on, then the car power supply voltage of 24V by the path of first dotted line along Fig. 2 1., on the coil in relay module
Electricity, after coil powers on, the switch K of relay will be closed；After switch K closure, the car power supply voltage of 24V will be second along Fig. 2
2. dashed path, is followed successively by subsequent surge suppression modules, filter module, Voltage stabilizing module and power supply chip module for power supply,
And then power supply chip module is micro-control unit power supply；However, since the startup switch of panel-switch module is only being pressed
When for the coil power supply in relay module, when unclamping startup switch, i.e., when startup switch is lifted, theoretically relay circuit
In coil can power down, but at this point, the micro-control unit of the present embodiment passed through power supply chip module obtain it is electric, it will to self-locking
Module exports high level signal, and high level will be such that triode Q2 is connected, so that NMOS tube Q1 is connected, then the vehicle of 24V at this time
3. Article 3 dashed path in Fig. 2, is the coil power supply in relay module, to keep switch K by load supply voltage
Closure, realize the self-locking of relay module.
It should be noted that when the shutdown of panel-switch module switch is pressed, the power down channel of panel-switch module
Be switched on, then panel-switch module by diode D2 be micro-control unit export a low level, then micro-control unit to
Self-locking module exports low level signal, then the base stage of triode Q2 becomes low level, triode Q2 shutdown, and then NMOS tube Q1 is closed
Breaking, that is, 3. the Article 3 dashed path in Fig. 2 disconnects, the coil in relay module also just disconnects power down, switch K,
To which entire power-supply system disconnects.
Parking heater only just uses in winter, if in the season not used or when not in use, Vehicle Controller
Circuit board is still powered on, and undoubtedly will increase the risk of circuit board damage.It can be seen that the present embodiment is using a relay control
The on-off of power supply ensure that whole circuit board is uncharged when Vehicle Controller does not work, and can substantially reduce circuit board damage
Bad risk.
A kind of implementation of filter module is described below.
The filter module includes inductance L1 and capacitor C1, C2；
Input terminal and output end of the both ends of the inductance L1 respectively as filter module, wherein input terminal connects surge
The cathode of diode D4 in suppression module, for access surge suppression modules output by peak clipping treated vehicle mounted electric
Source voltage, output end connect the anode of diode D5 in Voltage stabilizing module, export for accessing external high level, and to Voltage stabilizing module
Car power supply voltage after smoothing processing；
The input terminal of the anode connection inductance L1 of the capacitor C1, cathode ground connection；
The output end of the anode connection inductance L1 of the capacitor C2, cathode ground connection.
It should be noted that the present embodiment arranges filter module after surge suppression modules, for inhibiting due to copped wave
Electric current caused by the large current load of modulation, voltage fluctuation.Large current load in equipment takes from the subsequent 24VP of filter module
Electricity.On the one hand such sequence plays inhibiting effect to large current load current fluctuation, while Voltage stabilizing module only passes through very little
Electric current.Add the capacitor of 50 volts of 470 microfarad before power supply chip module, inhibits large current load to power input electricity
The influence of pressure guarantees the steady of power supply chip module input voltage.
A kind of implementation of Voltage stabilizing module is described below.
The Voltage stabilizing module includes triode Q3, capacitor C3, resistance R4 and diode D5, D6；
Input terminal of the anode of the diode D5 as Voltage stabilizing module, for accessing the process of the filter module output
Car power supply voltage after smoothing processing；
The cathode of the collector connection diode D5 of the triode Q3, base stage connect the cathode of diode D6, emitter
As the output end of Voltage stabilizing module, for connecting the anode of capacitor C3, and to power supply chip module output by secondary steady
Car power supply voltage after pressure；
The plus earth of the diode D6；The collector of the one end resistance R4 connecting triode Q3, the other end connect three poles
The base stage of pipe Q3；The cathode of capacitor C3 is grounded.
It should be noted that triode Q3 is equivalent to a variable resistance, it is assumed that diode D6 is the voltage-stabiliser tube of 24V, and
The pressure drop of triode Q3 base stage and emitter is fixed 0.3V, then the output voltage of emitter is 23.7V, when filter module is defeated
When voltage out is higher than 24V, it is higher by the part of triode Q3 emitter output voltage 23.7V, it will drop to triode Q3 collection
In the knot pressure of electrode and emitter drop.
It should be noted that the present embodiment realizes second level by the cooperation of surge suppression modules and subsequent Voltage stabilizing module
The protection of slicing pressure stabilizing Surge suppression can guarantee that Vehicle Controller is tested by the 5a of ISO7637-2.Voltage stabilizing module is arranged in
After filter module, diode D5 prevents electric voltage reverse-connection, and diode D6 is voltage-stabiliser tube, when car power supply voltage is higher than 24 volts,
Triode Q3 output does not exceed 24 volts.
A kind of implementation of power supply chip module is described below.
The input voltage lower margin and output voltage lower margin of the power supply chip module are grounded, described in the access of input voltage pin
Car power supply voltage after the secondary pressure of Voltage stabilizing module output, output voltage pin are used to export 5V/ to micro-control unit
3.3V power supply.
It should be noted that GND is referred to digitally in Fig. 3, VGND with referring to car body, is connect before GND and VGND
One inductance L2 or magnetic bead are in order to which the two to be isolated.
It can be seen that the present embodiment passes through the rational design of sequence described above circuit, Vehicle Controller on the one hand ensure that not
Whole circuit board is powered off when work, on the other hand when Vehicle Controller works, passes through surge suppression modules and pressure stabilizing mould
The reasonable cooperation of block ensure that Vehicle Controller can ensure subsequent power chip module by ISO7637-2 experimental test
The steady safety of input voltage, has the characteristics that simple and practical, at low cost, high reliablity.
Certainly, the invention may also have other embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding changes and modifications can be made according to the present invention certainly by knowing those skilled in the art, but these it is corresponding change and
Deformation all should fall within the scope of protection of the appended claims of the present invention.
Claims (8)
1. a kind of Vehicle Controller power-supply system of discontinuous work, which is characterized in that including panel-switch module, relay mould
Block, surge suppression modules, self-locking module, filter module, Voltage stabilizing module, power supply chip module and micro-control unit；
The panel-switch module be used for control the relay module power on and power down, wherein when panel-switch module
When powering on channel start, panel-switch module exports car power supply voltage to the relay module, so that the relay mould
Block powers on；When the power down channel start of panel-switch module, panel-switch module exports low level to the micro-control unit
Signal, then micro-control unit exports low level signal to the self-locking module, then relay module falling with self-locking module
Electricity and power down；
The micro-control unit is used to export high level signal to self-locking module when powering on, logical in the power down of panel-switch module
When road starting or the micro-control unit detection Vehicle Controller break down, Xiang Zisuo module exports low level signal；
The relay module for exporting car power supply voltage after the power-up；
The car power supply voltage that the surge suppression modules are used to export relay module carries out peak clipping processing；
The self-locking module is used to receive the high level signal of micro-control unit output and by peak clipping treated vehicle power supply
Voltage, it is self-locking to control the relay module, is kept powered on state；It is also used to receive the low level letter of micro-control unit output
Number, control the relay module power down；
The filter module is used for described that treated that car power supply voltage is smoothed by peak clipping；
The Voltage stabilizing module is used to the car power supply voltage Jing Guo smoothing processing carrying out secondary pressure, so that by secondary pressure
Car power supply voltage afterwards is within the scope of the maximum withstanding voltage of the power supply chip module；
The power supply chip module is then micro-control unit power supply for receiving the car power supply voltage after secondary pressure.
2. a kind of Vehicle Controller power-supply system of discontinuous work as described in claim 1, which is characterized in that the panel
Switch module includes startup switch, shutdown switch and diode D1, D2；
Startup switch one end access car power supply voltage, the anode of another terminating diode D1, meanwhile, the yin of diode D1
First output end of the pole as panel-switch module, for when the startup switch is connected, Xiang Suoshu relay module to be exported
Car power supply voltage；
Shutdown switch one end ground connection, the cathode of another terminating diode D2, meanwhile, the anode of diode D2 is opened as panel
The second output terminal for closing module, for exporting low level signal to micro-control unit when the shutdown switch connection.
3. a kind of Vehicle Controller power-supply system of discontinuous work as described in claim 1, which is characterized in that the relay
Device module includes relay and diode D3, and wherein relay includes coil and switch K；
The coil and diode D3 are in parallel, and the plus earth of diode D3, and panel-switch module is accessed in described coil one end
The car power supply voltage of output, other end ground connection, for being powered on after the car power supply voltage of access panel-switch module output,
And coil power on after control switch K closure；
The one end the switch K access vehicle power supply signal, output end of the other end as relay module, for be closed when to
The surge suppression modules export the car power supply voltage of itself access；
The self-locking module includes NMOS tube Q1, triode Q2 and resistance R1~R3；
First input end of the source electrode of the NMOS tube Q1 as self-locking module, for accessing the surge suppression modules output
By peak clipping treated car power supply voltage；
Output end of the drain electrode of the NMOS tube Q1 as self-locking module is used in NMOS tube Q1 conducting, Xiang Suoshu relay
Module output is by peak clipping treated car power supply voltage；
One end of the grid connecting resistance R1 of the NMOS tube Q1, and the collector of another termination triode Q2 of resistance R1；Resistance R3
The base stage of one end connecting triode Q2, the emitter of other end connecting triode Q2；The emitter of triode Q2 is grounded, and base stage connects
One end of resistance R2, meanwhile, second input terminal of the resistance R2 other end as self-locking module is given for accessing micro-control unit
High level signal/low level signal, control triode Q2 ON/OFF, to control NMOS tube Q1 ON/OFF.
4. a kind of Vehicle Controller power-supply system of discontinuous work as described in claim 3 or 4, which is characterized in that described
Car power supply voltage is 24V.
5. a kind of Vehicle Controller power-supply system of discontinuous work as described in claim 1, which is characterized in that the surge
Suppression module includes diode D4, D5；
The anode of the anode connection diode D5 of the diode D4, and the minus earth of diode D5；
The cathode of the diode D4 is used as the input terminal and output end of surge suppression modules simultaneously, is respectively used to receiving relay
The car power supply voltage of module output, and export by peak clipping treated car power supply voltage.
6. a kind of Vehicle Controller power-supply system of discontinuous work as described in claim 1, which is characterized in that the filtering
Module includes inductance L1 and capacitor C1, C2；
Input terminal and output end of the both ends of the inductance L1 respectively as filter module, wherein input terminal is described for accessing
Surge suppression modules output by peak clipping treated car power supply voltage, output end for accessing external high level, and to
Voltage stabilizing module exports the car power supply voltage after smoothing processing；
The input terminal of the anode connection inductance L1 of the capacitor C1, cathode ground connection；
The output end of the anode connection inductance L1 of the capacitor C2, cathode ground connection.
7. a kind of Vehicle Controller power-supply system of discontinuous work as described in claim 1, which is characterized in that the pressure stabilizing
Module includes triode Q3, capacitor C3, resistance R4 and diode D5, D6；
Input terminal of the anode of the diode D5 as Voltage stabilizing module, the process for accessing the filter module output are smooth
Treated car power supply voltage；
The cathode of the collector connection diode D5 of the triode Q3, base stage connect the cathode of diode D6, emitter conduct
The output end of Voltage stabilizing module, for connecting the anode of capacitor C3, and to power supply chip module output after secondary pressure
Car power supply voltage；
The plus earth of the diode D6；The collector of the one end resistance R4 connecting triode Q3, other end connecting triode Q3
Base stage；The cathode of capacitor C3 is grounded.
8. a kind of Vehicle Controller power-supply system of discontinuous work as described in claim 1, which is characterized in that the power supply
The input voltage lower margin and output voltage lower margin of chip module are grounded, and input voltage pin accesses the two of the Voltage stabilizing module output
Car power supply voltage after secondary pressure stabilizing, output voltage pin are used to export 5V/3.3V power supply to micro-control unit.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206408A (en) * | 2019-07-08 | 2019-09-06 | 广东科徕尼智能科技有限公司 | A kind of band stablizes the intelligent door lock of electric-control system |
| CN117834336A (en) * | 2023-12-29 | 2024-04-05 | 浙江康信电器集团有限公司 | Voltage stabilizing circuit applied to LIN communication of commercial vehicle and control method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201821535U (en) * | 2010-06-28 | 2011-05-04 | 海洋王照明科技股份有限公司 | Vehicle-mounted signal lamp power supply circuit and vehicle-mounted signal lamp |
| CN205355801U (en) * | 2016-01-26 | 2016-06-29 | 成都赛林科技有限公司 | A peak surge voltage inhibiting module for on -vehicle direct current electric system |
| CN206250977U (en) * | 2016-11-30 | 2017-06-13 | 深圳市凌康技术股份有限公司 | A kind of translation circuit and charging pile of two LLC crisscross parallels |
| CN206452295U (en) * | 2017-02-08 | 2017-08-29 | 中国长城科技集团股份有限公司 | A kind of power protecting circuit and power supply |
| CN206542180U (en) * | 2017-03-18 | 2017-10-03 | 西安甘鑫电子科技有限公司 | A kind of Surge suppression power module |
| CN108233353A (en) * | 2018-03-01 | 2018-06-29 | 成都新欣神风电子科技有限公司 | The anti-overvoltage surge cascade module of two-stage |
| CN209904704U (en) * | 2019-01-18 | 2020-01-07 | 河北威泰重工机械有限公司 | Power supply system of vehicle-mounted controller working discontinuously |
-
2019
- 2019-01-18 CN CN201910049185.8A patent/CN109795429B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201821535U (en) * | 2010-06-28 | 2011-05-04 | 海洋王照明科技股份有限公司 | Vehicle-mounted signal lamp power supply circuit and vehicle-mounted signal lamp |
| CN205355801U (en) * | 2016-01-26 | 2016-06-29 | 成都赛林科技有限公司 | A peak surge voltage inhibiting module for on -vehicle direct current electric system |
| CN206250977U (en) * | 2016-11-30 | 2017-06-13 | 深圳市凌康技术股份有限公司 | A kind of translation circuit and charging pile of two LLC crisscross parallels |
| CN206452295U (en) * | 2017-02-08 | 2017-08-29 | 中国长城科技集团股份有限公司 | A kind of power protecting circuit and power supply |
| CN206542180U (en) * | 2017-03-18 | 2017-10-03 | 西安甘鑫电子科技有限公司 | A kind of Surge suppression power module |
| CN108233353A (en) * | 2018-03-01 | 2018-06-29 | 成都新欣神风电子科技有限公司 | The anti-overvoltage surge cascade module of two-stage |
| CN209904704U (en) * | 2019-01-18 | 2020-01-07 | 河北威泰重工机械有限公司 | Power supply system of vehicle-mounted controller working discontinuously |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206408A (en) * | 2019-07-08 | 2019-09-06 | 广东科徕尼智能科技有限公司 | A kind of band stablizes the intelligent door lock of electric-control system |
| CN110206408B (en) * | 2019-07-08 | 2023-08-08 | 广东好太太智能家居有限公司 | Intelligent door lock with stable electric control system |
| CN117834336A (en) * | 2023-12-29 | 2024-04-05 | 浙江康信电器集团有限公司 | Voltage stabilizing circuit applied to LIN communication of commercial vehicle and control method thereof |
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|---|---|
| CN109795429B (en) | 2024-04-16 |
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