Low consumption circuit and the power-consumption control system waken up up based on automotive electronics rigid line
Technical field
This utility model relates to electric automobile field, more particularly, it relates to a kind of low consumption circuit and based on automobile electricity
The power-consumption control system that sub-rigid line wakes up up.
Background technology
In order to meet electric vehicle motor controller functional requirement (such as active discharge, state note under car load during electricity
The functions such as record), electric machine control system typically requires provides low-power consumption to power for electric machine controller.The most conventional low-power consumption is powered
Realized by the power management chip and DSP/MCU with low-power consumption function: when car load issues low-power consumption time delay instruction, make electricity
Source control chip and DSP/MCU enter low-power consumption mode.
But, power management chip and DSP/MCU typically cost with low-power consumption function are higher, and need to increase voltage pipe
Reason chip, the voltage management chip of this increase also will cause veneer area to increase.The above-mentioned power management with low-power consumption function
When chip runs on low-power consumption mode, there is also certain power consumption, it is impossible to meet the stand-by power consumption requirement that portions of client is harsh.This
Outward, generally entrance low-power consumption is instructed with the power management chip of low-power consumption mode and DSP/MCU receiving low-power consumption time delay
The time of pattern is fixing, is unfavorable for that electric machine control system carries out the feature operation being correlated with after receiving low-power consumption time delay instruction
(such as active discharge, data record etc.).
Utility model content
The technical problems to be solved in the utility model is, for above-mentioned electric machine controller low power operation cost height, enters
Enter the time of delay mode fixing problem, it is provided that a kind of low consumption circuit and the low-power consumption control waken up up based on automotive electronics rigid line
System processed.
This utility model solves the technical scheme of above-mentioned technical problem and is to provide a kind of low consumption circuit, defeated including voltage
Inbound port, voltage output end mouth, the 3rd switch element, hard signal input port, controller signals input port, the first switch
Unit and second switch unit;Wherein: described hard signal input port is connected to the control end of the first switch element, described
Controller signals input port is connected to the control end of second switch unit;The two ends of described 3rd switch element connect electricity respectively
Pressure input port and voltage output end mouth, the control end of the 3rd switch element is connected to the first switch element and second switch list
Unit, and conducting when any one in the first switch element and second switch unit turns on.
In low consumption circuit described in the utility model, described first switch element includes the first audion, and this
The base stage of one audion is connected to hard signal input port, colelctor electrode and is connected to the control of the 3rd switch element via the first resistance
End processed, grounded emitter;Described second switch unit includes the second audion, and the base stage of this second audion is connected to control
Device signal input port, colelctor electrode are connected to the control end of the 3rd switch element, grounded emitter via the second resistance.
In low consumption circuit described in the utility model, described 3rd switch element includes PMOS, and this PMOS
Grid be connected to voltage input end mouth via the 3rd resistance, source electrode is connected to voltage input end mouth, to be connected to voltage defeated in drain electrode
Go out port.
In low consumption circuit described in the utility model, described hard signal input port via the 5th resistance eutral grounding,
It is also associated with the 4th resistance, and the base of this first audion between base stage and the hard signal input port of described first audion
Connect between pole and emitter stage and have the first electric capacity;Described controller signals input port via the 7th resistance eutral grounding, described second
The 6th resistance it is also associated with between base stage and the controller signals input port of audion, and the base stage of this second audion and sending out
Connect between emitter-base bandgap grading and have the second electric capacity.
This utility model also provides for a kind of power-consumption control system waken up up based on automotive electronics rigid line, including low pressure electric power storage
Pond, low consumption circuit, control circuit and electronics rigid line, and described control circuit include master controller, wherein: described low
Power digital circuit includes the first switch element, second switch unit and the 3rd switch element, and the control of described first switch element
End processed connects electronics rigid line via hard signal input port;The control end of second switch unit is via controller input port even
Receive the signal output port of control circuit;The two ends of described 3rd switch element connect low tension battery respectively and control electricity
Road, and the control end of the 3rd switch element is connected to the first switch element and second switch unit, and at the first switch element
Conducting when turning on any one in second switch unit.
In the power-consumption control system waken up up based on automotive electronics rigid line described in the utility model, described first switch
Unit includes the first audion, and the base stage of this first audion is connected to hard signal input port, colelctor electrode via first
Resistance is connected to the control end of the 3rd switch element, grounded emitter;Described second switch unit includes the second audion, and should
The base stage of the second audion is connected to controller signals input port, colelctor electrode is connected to the 3rd switch element via the second resistance
Control end, grounded emitter.
In the power-consumption control system waken up up based on automotive electronics rigid line described in the utility model, described 3rd switch
Unit includes PMOS, and the grid of this PMOS is connected to voltage input end mouth via the 3rd resistance, source electrode is connected to voltage
Input port, drain electrode are connected to voltage output end mouth.
In the power-consumption control system waken up up based on automotive electronics rigid line described in the utility model, described hard signal
Input port, via the 5th resistance eutral grounding, is also associated with between base stage and the hard signal input port of described first audion
Connect between four resistance, and the base stage of this first audion and emitter stage and have the first electric capacity;Described controller signals input port
Via the 7th resistance eutral grounding, between base stage and the controller signals input port of described second audion, it is also associated with the 6th electricity
Resistance, and between the base stage of this second audion and emitter stage, connection has the second electric capacity.
Low consumption circuit of the present utility model and the power-consumption control system waken up up based on automotive electronics rigid line have following
Beneficial effect: by hard signal and master controller Signal-controlled switch device, it is achieved the low-power consumption demand of electric machine control system,
And low-power consumption is controlled for time delay.This utility model scheme is novel, with low cost and reliability is high, can be widely applied to electronic
Automobile, battery-operated motor cycle, electri forklift etc. need control system to realize the occasion of low-power consumption.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model low consumption circuit embodiment.
Fig. 2 is the schematic diagram of the power-consumption control system embodiment that this utility model wakes up up based on automotive electronics rigid line.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
As it is shown in figure 1, be the schematic diagram of this utility model low consumption circuit embodiment, this circuit may be directly applied to electronic
Automotive motor controller, it is achieved low-power consumption demand after electricity under electric machine controller.Low consumption circuit in the present embodiment includes electricity
Pressure input port VIN, voltage output end mouth VOUT, the 3rd switch element 13, hard signal input port IO-EN, controller letter
Number input port MCU-EN, the first switch element 11 and second switch unit 12.Above-mentioned hard signal input port IO-EN uses
In the external electronics rigid line from car load, and this hard signal input port IO-EN is connected to the control of the first switch element 11
End, controller signals input port MCU-EN is connected to the control end of second switch unit 12;The two ends of the 3rd switch element 13
Connecting voltage input end mouth VIN and voltage output end mouth VOUT respectively, the control end of the 3rd switch element 13 is connected to first
Switch element 11 and second switch unit 12, and when any one in the first switch element 11 and second switch unit 12 turns on
Conducting, thus the voltage of voltage input end mouth VIN is exported voltage output end mouth VOUT.
Above-mentioned first switch element 11 includes the first audion Q1, and the base stage of this first audion Q1 is connected to rigid line letter
Number input port IO-EN, colelctor electrode are connected to the control end of the 3rd switch element 13, grounded emitter via the first resistance R1;
Second switch unit 12 includes the second audion Q2, and the base stage of this second audion Q2 is connected to controller signals input port
MCU-EN, colelctor electrode are connected to the control end of the 3rd switch element 13, grounded emitter via the second resistance R2.3rd switch is single
Unit 13 includes PMOS Q3, and the grid of this PMOS Q3 is connected to voltage input end mouth VIN, source electrode even via the 3rd resistance R3
Receive voltage input end mouth VIN, drain electrode is directly connected to voltage output end mouth VOUT.
Additionally, hard signal input port IO-EN is via the 5th resistance R5 ground connection, the base stage of the first audion Q1 and rigid line
It is also associated with between signal input port IO-EN between the 4th resistance R4, and base stage and the emitter stage of this first audion Q1 connecting
It is connected to the first electric capacity C1;Controller signals input port MCU-EN is via the 7th resistance R7 ground connection, the base stage of the second audion Q2
And between controller signals input port MCU-EN, be also associated with the 6th resistance R6, and the base stage of this second audion Q2 and transmitting
Connect between pole and have the second electric capacity C2.
Before electric machine controller acquiescence powers on, the voltage of hard signal input port IO-EN and be connected to controller letter
The sleep signal of number input port MCU-EN pulls down to low level by the 5th resistance R5, the 7th resistance R7 respectively, the one or three pole
Pipe Q1 and the second audion Q2 cut-off, PMOS Q3 cannot turn on, and voltage input end mouth VIN and voltage output end mouth VOUT breaks
Open.
When low consumption circuit receives low-power consumption hard signal, i.e. hard signal input port IO-EN voltage uprises, the one or three
Pole pipe Q1 saturation conduction, PMOS Q3 grid source class produces negative pressure and saturation conduction, voltage input end mouth VIN and voltage output end mouth
VOUT connects.After control circuit normally works, master controller (DSP/MCU) stopping output to controller input port MCU-EN
Dormancy signal sets high, the second audion Q2 saturation conduction, informs that low consumption circuit enters normal mode of operation.When hard signal inputs
After port IO-EN receives low-power consumption hard signal step-down, although the first audion Q1 cut-off, but it is because the second audion Q2 and satisfies
And conducting, PMOS Q3 grid source class produces negative pressure and still saturation conduction.When client informs master controller needs by CAN order
During lower electricity, sleep signal just can be set low by master controller, and now the first audion Q1 and the second audion Q2 ends, and voltage is defeated
Inbound port VIN and voltage output end mouth VOUT disconnects.
By arranging the first resistance R1, the second resistance R2, the value of the 3rd resistance R3, the grid source class of PMOS Q3 can be regulated
Voltage;By arranging the 4th resistance R4 and the parameter of the 6th resistance R6, the first audion Q1, the second audion Q2 can be regulated
Duty.The work of this low consumption circuit is simple, with low cost, reliability is high.
As in figure 2 it is shown, this utility model also provides for a kind of power-consumption control system waken up up based on automotive electronics rigid line.Should
Power-consumption control system includes low tension battery 20, low consumption circuit 10, control circuit 30 and electronics rigid line 40, and control circuit
In include master controller 31, wherein low consumption circuit 10 includes the first switch element, second switch unit and the 3rd switch
Unit, and the control end connection electronics rigid line 40 of the first switch element;The control end of second switch unit is connected to master controller
Signal output port;The two ends of the 3rd switch element connect low tension battery and control circuit respectively, and the 3rd switch is single
The control end of unit is connected to the first switch element and second switch unit, and in the first switch element and second switch unit
Conducting during any one conducting.
Above-mentioned first switch element includes the first audion, and the base stage of this first audion is via hard signal input
Mouth is connected to electronics rigid line 40, colelctor electrode is connected to the control end of the 3rd switch element, grounded emitter via the first resistance;Institute
State second switch unit and include the second audion, and the base stage of this second audion is connected to via controller signals input port
The signal output port of master controller 31, colelctor electrode are connected to the control end of the 3rd switch element, emitter stage via the second resistance
Ground connection.3rd switch element includes PMOS, and the grid of this PMOS is connected to voltage input end mouth, source via the 3rd resistance
Pole is connected to voltage input end mouth, drain electrode is connected to voltage output end mouth.
Additionally, hard signal input port inputs with hard signal via the 5th resistance eutral grounding, the base stage of the first audion
It is also associated with between port between the 4th resistance, and the base stage of this first audion and emitter stage connecting and has the first electric capacity;Control
Device signal input port, via the 7th resistance eutral grounding, is also connected with between base stage and the controller signals input port of the second audion
Have between the 6th resistance, and the base stage of this second audion and emitter stage to connect and have the second electric capacity.
The above-mentioned power-consumption control system waken up up based on automotive electronics rigid line is by hard signal and master controller (MCU/
DSP) Signal-controlled switch device, it is achieved the low-power consumption demand of electric machine control system, and low-power consumption is controlled for time delay, scheme
Novelty, with low cost and reliability is high.Can be widely applied to electric automobile, battery-operated motor cycle, electri forklift etc. need to control system
System realizes the occasion of low-power consumption.
The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model is not
Being confined to this, any those familiar with the art, in the technical scope that this utility model discloses, can readily occur in
Change or replacement, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is as the criterion with scope of the claims.