CN206031260U - Start power circuit - Google Patents
Start power circuit Download PDFInfo
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- CN206031260U CN206031260U CN201620925912.4U CN201620925912U CN206031260U CN 206031260 U CN206031260 U CN 206031260U CN 201620925912 U CN201620925912 U CN 201620925912U CN 206031260 U CN206031260 U CN 206031260U
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Abstract
The utility model discloses a start power circuit, include: microcontroller, voltage detection circuit, internal resistance detection circuitry and controllable switch circuit, when installing the car storage battery in the car, the utility model discloses can detect internal resistance, battery power and the storage battery health status of car storage battery to, microcontroller is accessible control controllable switch circuit conduction still, makes the output of car energy storage device start the current starting car. Accordingly, the utility model discloses a start power circuit has the function that starts the car and detect car storage battery parameter simultaneously, consequently, and when the car storage battery can't provide the pick -up current, the utility model discloses the relevant parameter of automobile storage battery can also be detected when providing the pick -up current, the measuring to automobile storage battery trouble is realized to it wastes time and energy, investigates the problem of inefficiency effectively to have solved current artifical investigation trouble.
Description
Technical field
This utility model is related to automobile technical field, in particular, is related to a kind of startup power supply circuit.
Background technology
Automobile storage battery can provide powerful startup electricity in vehicle launch electromotor to electromotor also known as automobile storage battery
Stream.When automobile storage battery leads to not provide starting current for vehicle for some reason, automobile starting power supply will replace vapour
Automobile battery carries out startup sparking to automobile.
The reason for automobile storage battery cannot provide starting current for vehicle has various, for example, automobile storage battery not enough power supply, automobile
The health status of storage battery go wrong, and generally require breaking down for related maintainer investigation automobile storage battery in prior art
The reason for, troubleshooting procedure is wasted time and energy, and investigation efficiency is low.
Utility model content
In view of this, this utility model discloses a kind of startup power supply circuit, to solve existing artificial investigation automobile storage battery event
Barrier reason, wastes time and energy and investigates the low problem of efficiency.
A kind of startup power supply circuit, including：
Microcontroller, with multiple signals collecting ports and multiple signal control ports；
The voltage detecting circuit that input is connected with automobile storage battery anode, the outfan of the voltage detecting circuit with it is described
Microcontroller voltage signal acquisition port connection, the voltage signal acquisition port be used for gather automobile it is not actuated when automobile
Automobile storage battery voltage when battery voltage and automobile starting, wherein, the voltage signal acquisition port is adopted for the plurality of signal
One in collection port；
Input is connected with the automobile storage battery anode, and earth terminal connects the internal resistance detection circuit of automobile storage battery negative terminal, institute
The outfan for stating internal resistance detection circuit connects the current signal collection port of the microcontroller, and the current signal gathers port
For gathering electric current when automobile storage battery discharges, wherein, the current signal collection port is the plurality of signals collecting port
In one；
Input is connected with the common port of automobile energy storage element and the microcontroller, and outfan is with the automobile storage battery just
The gate-controlled switch circuit of end connection, the control end of the gate-controlled switch circuit connect the first signal control end of the microcontroller
Mouthful, the first signal control port is used for the conductivity control signal of gate-controlled switch circuit turn-on described in output control, wherein, institute
It is in the plurality of signal control port to state the first signal control port；
The secondary signal control port of the microcontroller for when the microcontroller detects the automobile storage battery,
Export automobile storage battery electricity when automobile storage battery voltage of the microcontroller according to the automobile when not actuated, the automobile starting
The internal resistance of the automobile storage battery that pressure and the electric current are obtained, storage battery electricity and storage battery health status, wherein, the secondary signal
Control port is in the plurality of signal control port.
Preferably, also include：
It is connected with the secondary signal control port, for the internal resistance, the storage battery electricity and storage battery health
The display circuit shown by situation.
Preferably, the voltage detecting circuit includes：First partial pressure branch road, the second partial pressure branch road and the first capacitor；
One end of the first partial pressure branch road connects the automobile storage battery anode, and the other end of the first partial pressure branch road leads to
Cross the second partial pressure branch road connection earth terminal；
First capacitor is connected in the two ends of the second partial pressure branch road in parallel, the first partial pressure branch road, described
The common port of the second partial pressure branch road and first capacitor connects the voltage signal acquisition port.
Preferably, the gate-controlled switch circuit includes：Relay, diode, first switch pipe, first resistor and second are electric
Resistance；
One end connection automobile energy storage element anode of the normally opened contact of the relay, the other end of the normally opened contact connect
The automobile storage battery anode is connect, one end of the coil of the relay connects the automobile energy storage element anode, the coil
The other end connects the input of the first switch pipe, and wherein, automobile energy storage element negative terminal is connected with the automobile storage battery negative terminal；
The control end of the first switch pipe connects the first signal control port by the first resistor, and described the
The outfan of one switching tube connects earth terminal by the second resistance；
The anode of the diode connects the common port of the coil and the first switch pipe, the negative electrode of the diode
Connect the automobile energy storage element anode.
Preferably, the first switch pipe is metal-oxide-semiconductor.
Preferably, the gate-controlled switch circuit includes：Second switch pipe, the 3rd switching tube, 3rd resistor and the 4th resistance；
The control end of the second switch pipe connects the first signal control port by the 3rd resistor, and described the
The input of two switching tubes is connected with the input of the 3rd switching tube, the outfan connection automobile storage of the second switch pipe
Can element negative terminal；
The control end of the 3rd switching tube connects the first signal control port by the 4th resistance, and described the
The outfan of three switching tubes connects the automobile storage battery negative terminal, wherein, automobile energy storage element anode and the automobile storage battery anode
Connection.
Preferably, the internal resistance detection circuit includes：5th resistance, the 4th switching tube and the 6th resistance；
One end of 5th resistance connects the automobile storage battery anode, the other end connection of the 5th resistance described the
The input of four switching tubes, the outfan of the 4th switching tube connect the automobile storage battery negative terminal by the 6th resistance,
The common port of the 4th switching tube connects the Enable Pin of the microcontroller, the 4th switching tube and the 6th resistance
Common port connects the current signal as the outfan of the internal resistance detection circuit and gathers port.
Preferably, also include：The 7th resistance being connected in series between the Enable Pin and the 4th switching tube.
Preferably, also include：Current-limiting resistance, one end of the current-limiting resistance connect the current signal and gather port, institute
The other end for stating current-limiting resistance connects the common port of the 4th switching tube and the 6th resistance.
Preferably, also include：Second capacitor, one end of second capacitor connect the current-limiting resistance and described micro-
The common port of controller, the other end connection earth terminal of second capacitor.
Knowable to above-mentioned technical scheme, the utility model discloses a kind of startup power supply circuit, including：Microcontroller,
Voltage detecting circuit, internal resistance detection circuit and gate-controlled switch circuit, when automobile storage battery is installed in automobile, this utility model can be with
The internal resistance of detection automobile storage battery, storage battery electricity and storage battery health status, also, microcontroller can also be by controlling gate-controlled switch electricity
Road turns on, and makes automobile energy storage element output starting current start automobile.It follows that startup power supply electricity disclosed in this utility model
Road has the function of starting automobile and detection automobile storage battery parameter simultaneously, therefore, when automobile storage battery cannot provide starting current,
This utility model can also detect the relevant parameter of automobile storage battery while starting current is provided, and realize to automobile storage battery failure
Detection, so as to efficiently solve the problems, such as that existing artificial investigation failure wastes time and energy, to investigate efficiency low.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to disclosed accompanying drawing.
Fig. 1 is a kind of circuit diagram of startup power supply circuit disclosed in this utility model embodiment；
Fig. 2 is the circuit diagram of another kind of startup power supply circuit disclosed in this utility model embodiment；
Fig. 3 is a kind of circuit diagram of voltage detecting circuit disclosed in this utility model embodiment；
Fig. 4 is a kind of circuit diagram of gate-controlled switch circuit disclosed in this utility model embodiment；
Fig. 5 is the circuit diagram of another kind of gate-controlled switch circuit disclosed in this utility model embodiment；
Fig. 6 is a kind of circuit diagram of internal resistance detection circuit disclosed in this utility model embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
This utility model embodiment discloses a kind of startup power supply circuit, to solve existing artificial investigation automobile storage battery failure
Reason, wastes time and energy and investigates the low problem of efficiency.
Referring to Fig. 1, a kind of circuit diagram of startup power supply circuit disclosed in this utility model embodiment, the circuit include：It is micro-
Controller U1, voltage detecting circuit 11, internal resistance detection circuit 12 and gate-controlled switch circuit 13.
Wherein：
Microcontroller U1, with multiple signals collecting ports and multiple signal control ports.
The input of voltage detecting circuit 11 is connected with automobile storage battery anode KAR+, the outfan of voltage detecting circuit 11 with
Microcontroller U1 voltage signal acquisition port connection, voltage signal acquisition port be used for gather automobile it is not actuated when automobile electricity
Automobile storage battery voltage when bottle voltage and automobile starting, wherein, multiple signals of the voltage signal acquisition port for microcontroller U1
One in collection port.
The input of internal resistance detection circuit 12 is connected with automobile storage battery anode KAR+, and the earth terminal of internal resistance detection circuit 12 connects
Connect automobile storage battery negative terminal KAR-, the current signal collection port of the outfan connection microcontroller U1 of internal resistance detection circuit 12, electricity
Stream signals collecting port is used for gathering electric current when automobile storage battery 10 discharges, and wherein, current signal collection port is microcontroller
One in multiple signals collecting ports of U1.
The input of gate-controlled switch circuit 13 is connected with the common port of automobile energy storage element 20 and microcontroller U1, controllable to open
The outfan on powered-down road 13 is connected with automobile storage battery anode KAR+, the control end connection microcontroller U1's of gate-controlled switch circuit 13
First signal control port, the first signal control port are used for the conducting control letter of the conducting of output control gate-controlled switch circuit 13
Number, wherein, the first signal control port is in multiple signal control ports of microcontroller U1.
The secondary signal control port of microcontroller U1 is for when microcontroller U1 detects automobile storage battery 10, output is micro-
Automobile storage battery voltage and internal resistance detection circuit when automobile storage battery voltages of the controller U1 according to automobile when not actuated, automobile starting
The internal resistance of the automobile storage battery 10 that the electric current of 12 outputs is obtained, storage battery electricity and storage battery health status, wherein, secondary signal control end
Mouth is in multiple signal control ports of microcontroller U1.
It should be noted that when microcontroller U1 is not detected by automobile storage battery or detects the pressure drop rate of electric car storage battery
Not less than can also generate conductivity control signal during scheduled rate, turned on controlling gate-controlled switch circuit 13.
For convenience of understanding, for the operation principle of startup power supply circuit, it is specifically described as follows：
Startup power supply circuit needs to be connected with automobile energy storage element 20 in actual applications.
When microcontroller U1 detect be fitted without in current automobile automobile storage battery 10 (i.e. voltage detecting circuit 11 export to
The voltage of microcontroller U1 is that zero), or microcontroller U1 detects (the i.e. automobile storage battery 10 when automobile is started of automobile storage battery 10
Pressure drop rate is not less than scheduled rate) when, microcontroller U1 is turned on by controlling gate-controlled switch circuit 13, makes automobile energy storage element
20 output starting currents start automobile.
If it should be noted that conducting gate-controlled switch circuit 13, automobile storage battery 10 when installing automobile storage battery 10 in the automobile
To be connected in parallel with automobile energy storage element 20, and export jointly starting current and start automobile.
At the same time, when in automobile install automobile storage battery 10 after, microcontroller can detect automobile storage battery 10 internal resistance,
Storage battery electricity and storage battery health status, detection process are specific as follows：
It is assumed that when automobile is not actuated, voltage detecting circuit 11 detects automobile storage battery voltage for V1, during automobile starting
Automobile storage battery voltage is V2, the electric current for flowing through automobile storage battery 10 during automobile starting is I0；
The then internal resistance R '=(V of automobile storage battery 101-V2)/I0。
The storage battery electricity CCA=(V of automobile storage battery 101-7.2)*0.7/R′。
Storage battery health status SOH=(CCA*CCA)/(CCA1*CCA1) * 100% of automobile storage battery 10, wherein, CCA1 is
Completely newly completely electricity is nominal CCA values to automobile storage battery 10, and CCA1 values are from user by setting to microcontroller U1 input instructions.
In summary, startup power supply circuit disclosed in this utility model, when automobile storage battery 10 being installed in the automobile, Ke Yijian
Internal resistance, storage battery electricity and the storage battery health status of automobile storage battery 10 are surveyed, also, microcontroller U1 can also be by controlling controllable opening
Powered-down road 13 turns on, and makes the output starting current of automobile energy storage element 20 start automobile.It follows that opening disclosed in this utility model
Galvanic electricity source circuit has the function of starting automobile and detection automobile storage battery parameter simultaneously, therefore, open when automobile storage battery cannot be provided
During streaming current, this utility model can also detect the relevant parameter of automobile storage battery 10 while starting current is provided, and it is right to realize
The detection of 10 failure of automobile storage battery, so that efficiently solve the problems, such as that existing artificial investigation failure wastes time and energy, to investigate efficiency low.
For further optimizing above-described embodiment, referring to Fig. 2, startup power supply circuit disclosed in another embodiment of this utility model
Circuit diagram, on the basis of embodiment described in Fig. 1, also include：Display circuit 14；
Display circuit 14 is connected with the secondary signal control port of microcontroller U1, for the internal resistance to automobile storage battery 10,
Storage battery electricity and storage battery health status are shown.
Wherein, the internal resistance of automobile storage battery 10, storage battery electricity and storage battery health status can inform user in the form of voice,
Now, it is only necessary to which the secondary signal control port of microcontroller U1 is connected with phonetic alarm.
For further optimizing above-described embodiment, referring to Fig. 3, a kind of voltage detecting circuit disclosed in this utility model embodiment
Circuit diagram, voltage detecting circuit includes：First partial pressure branch road, the second partial pressure branch road and the first capacitor C1；
One end connection automobile storage battery anode KAR+ of the first partial pressure branch road, the other end of the first partial pressure branch road lead to
Cross the second partial pressure branch road connection earth terminal；
First capacitor C1 is connected in the two ends of the second partial pressure branch road in parallel, the first partial pressure branch road, described
The common port of two partial pressure branch roads and the first capacitor C1 connects the voltage signal acquisition port VIN_SN of microcontroller U1, microcontroller
Device U1 obtains the voltage of automobile storage battery 10 by reading the voltage at common port.
Specifically, common port is connected with the ADC (analog-digital converter) inside microcontroller U1.
Wherein, the first partial pressure branch road can include a resistance (such as the R11 illustrated in Fig. 3) or multiple be connected in series
Resistance, equally, the second partial pressure branch road can include a resistance (such as the R12 illustrated in Fig. 3) or multiple be connected in series
Resistance.
For further optimizing above-described embodiment, referring to Fig. 4, a kind of gate-controlled switch circuit disclosed in this utility model embodiment
Circuit diagram, gate-controlled switch circuit includes：Relay K1, diode D1, first switch pipe Q1, first resistor R1 and second resistance
R2。
Wherein, the normally opened contact of relay K1 one end connection automobile energy storage element anode B+, the normally opened contact it is another
One end connects automobile storage battery anode KAR+, one end connection automobile energy storage element anode B+ of the coil of relay K1, the coil
The other end connect the input of the first switch pipe Q1, wherein, automobile energy storage element negative terminal B- is negative with the automobile storage battery
End KAR- (not shown) connections；
The control end of first switch pipe Q1 connects first signal control port ON/ of microcontroller U1 by first resistor R1
The outfan of OFF, first switch pipe Q1 connects earth terminal by second resistance R2；
The anode of diode D1 connects the common port of the coil and first switch pipe Q1, the negative electrode connection vapour of diode D1
Car energy-storage travelling wave tube anode B+.
The operation principle of gate-controlled switch circuit is：
When the first signal control port ON/OFF output high level of microcontroller U1,2 feet and 3 of first switch pipe Q1
Foot is turned on, and the coil of relay K1 has electric current to flow through, closes the normally opened contact of relay K1, i.e. 1 foot of relay K1 and 2 feet
Conducting；When the first signal control port ON/OFF output low level of microcontroller U1, first switch pipe Q1 shut-offs, relay
The coil losing electricity of K1, the normally opened contact of relay K1 disconnect.
Preferably, first switch pipe Q1 is metal-oxide-semiconductor.
For further optimizing above-described embodiment, referring to Fig. 5, a kind of gate-controlled switch disclosed in another embodiment of this utility model
The circuit diagram of circuit, gate-controlled switch circuit include：Second switch pipe Q2, the 3rd switching tube Q3,3rd resistor R3 and the 4th resistance
R4；
Wherein, the control end of second switch pipe Q2 connects the first signal control end of microcontroller U1 by 3rd resistor R3
Mouth ON/OFF, the input of second switch pipe Q2 are connected with the input of the 3rd switching tube Q3, the outfan of second switch pipe Q2
Connection automobile energy storage element negative terminal B-；
The control end of the 3rd switching tube Q3 connects first signal control port ON/ of microcontroller U1 by the 4th resistance R4
The outfan connection automobile storage battery negative terminal KAR- of OFF, the 3rd switching tube Q3, wherein, automobile energy storage element anode B+ and automobile are electric
The KAR+ connections of bottle anode.
The operation principle of gate-controlled switch circuit is：
When the first signal control port ON/OFF output high level of microcontroller U1, second switch pipe Q2 and the 3rd is opened
Close pipe Q3 to simultaneously turn on, automobile energy storage element 20 exports starting current to automobile；When the first signal as microcontroller U1 is controlled
During port ON/OFF output low levels, second switch pipe Q2 and the 3rd switching tube Q3 is simultaneously turned off.
Preferably, second switch pipe Q2 and the 3rd switching tube Q3 can be NMOS tube, or be PMOS.
For further optimizing above-described embodiment, referring to Fig. 6, a kind of internal resistance detection circuit disclosed in this utility model embodiment
Structural representation, internal resistance detection circuit includes：5th resistance R5, the 4th switching tube Q4 and the 6th resistance R6；
One end connection automobile storage battery anode KAR+ of the 5th resistance R5, the other end of the 5th resistance R5 connect the 4th switching tube
The input of Q4, the outfan of the 4th switching tube Q4 connect automobile storage battery negative terminal KAR-, the 4th switching tube by the 6th resistance R6
The common port of Q4 connects Enable Pin TEST_EN of microcontroller U1, the common port conduct of the 4th switching tube Q4 and the 6th resistance R6
The current signal collection port KAR_I of the outfan connection microcontroller U1 of the internal resistance detection circuit.
For further optimizing above-described embodiment, internal resistance detection circuit can also include：
The 7th resistance R7 being connected in series between Enable Pin TEST_EN and the 4th switching tube Q4.
For further optimizing above-described embodiment, internal resistance detection circuit can also include：Current-limiting resistance R8；
One end connection current signal collection port KAR_I of current-limiting resistance R8, the other end connection the 4th of current-limiting resistance R8
The common port of switching tube Q4 and the 6th resistance R6.
For further optimizing above-described embodiment, internal resistance detection circuit can also include：For the second capacitor C2 of filtering；
One end of second capacitor C2 connects the common port of current-limiting resistance R8 and microcontroller U1, and the second capacitor C2's is another
One end connects earth terminal.
The operation principle of internal resistance detection circuit is：
When automobile is not actuated, microcontroller U1 detects automobile storage battery voltage for V by voltage detecting circuit 111, so
Microcontroller U1 exports high level to Enable Pin TEST_EN afterwards, and the 4th switching tube Q4 conductings, automobile storage battery 10 pass through the 5th resistance
R5 electric discharges produce electric current, and electric current flows through the 6th resistance R6, and the 6th resistance R6 two ends form voltage difference, and microcontroller U1 passes through electric current
Signals collecting port KAR_I obtains flowing through the electric current I of automobile storage battery 100, while being detected now by voltage detecting circuit 11
Automobile storage battery voltage is V2, so as to microcontroller U1 is calculated the internal resistance R '=(V of automobile storage battery 101-V2)/I0.Subsequently, it is micro-
Controller U1 exports low level, the 4th switching tube Q4 shut-offs to Enable Pin TEST_EN.
It should be noted that the controller U1 in Fig. 6 includes controller chip and its peripheral circuit.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation are made a distinction with another entity or operation, and are not necessarily required or implied these entities or operation
Between there is any this actual relation or order.And, term " including ", "comprising" or its any other variant are anticipated
Covering including for nonexcludability, so that a series of process, method, article or equipment including key elements not only includes that
A little key elements, but also including other key elements being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element for being limited by sentence "including a ...", does not arrange
Except also there is other identical element in including the process of the key element, method, article or equipment.
In this specification, each embodiment is described by the way of progressive, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use that this practicality is new
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
1. a kind of startup power supply circuit, it is characterised in that include：
Microcontroller, with multiple signals collecting ports and multiple signal control ports；
The voltage detecting circuit that input is connected with automobile storage battery anode, the outfan of the voltage detecting circuit and the micro-control
Device processed voltage signal acquisition port connection, the voltage signal acquisition port be used for gather automobile it is not actuated when automobile storage battery
Automobile storage battery voltage when voltage and automobile starting, wherein, the voltage signal acquisition port is the plurality of signal acquisition terminal
One in mouthful；
Input is connected with the automobile storage battery anode, and earth terminal connects the internal resistance detection circuit of automobile storage battery negative terminal, described interior
The outfan of resistance detection circuit connects the current signal collection port of the microcontroller, and the current signal collection port is used for
Electric current when collection automobile storage battery discharges, wherein, during the current signal collection port is the plurality of signals collecting port
One；
Input is connected with the common port of automobile energy storage element and the microcontroller, and outfan is connected with the automobile storage battery anode
The gate-controlled switch circuit for connecing, the control end of the gate-controlled switch circuit connect the first signal control port of the microcontroller,
The first signal control port is used for the conductivity control signal of gate-controlled switch circuit turn-on described in output control, wherein, described
First signal control port is in the plurality of signal control port；
The secondary signal control port of the microcontroller for when the microcontroller detects the automobile storage battery, output
Automobile storage battery voltage when automobile storage battery voltage of the microcontroller according to the automobile when not actuated, the automobile starting and
The internal resistance of the automobile storage battery that the electric current is obtained, storage battery electricity and storage battery health status, wherein, the secondary signal control
Port is in the plurality of signal control port.
2. startup power supply circuit according to claim 1, it is characterised in that also include：
It is connected with the secondary signal control port, for the internal resistance, the storage battery electricity and the storage battery health status
The display circuit for being shown.
3. startup power supply circuit according to claim 1, it is characterised in that the voltage detecting circuit includes：First point
Pressure branch road, the second partial pressure branch road and the first capacitor；
One end of the first partial pressure branch road connects the automobile storage battery anode, and the other end of the first partial pressure branch road passes through institute
State the second partial pressure branch road connection earth terminal；
First capacitor is connected in the two ends of the second partial pressure branch road in parallel, the first partial pressure branch road, described second
The common port of partial pressure branch road and first capacitor connects the voltage signal acquisition port.
4. startup power supply circuit according to claim 1, it is characterised in that the gate-controlled switch circuit includes：Relay,
Diode, first switch pipe, first resistor and second resistance；
One end connection automobile energy storage element anode of the normally opened contact of the relay, the other end connection institute of the normally opened contact
State automobile storage battery anode, one end of the coil of the relay connects the automobile energy storage element anode, the coil it is another
The input of the end connection first switch pipe, wherein, automobile energy storage element negative terminal is connected with the automobile storage battery negative terminal；
The control end of the first switch pipe connects the first signal control port by the first resistor, and described first opens
The outfan for closing pipe connects earth terminal by the second resistance；
The anode of the diode connects the common port of the coil and the first switch pipe, the negative electrode connection of the diode
The automobile energy storage element anode.
5. startup power supply circuit according to claim 4, it is characterised in that the first switch pipe is metal-oxide-semiconductor.
6. startup power supply circuit according to claim 1, it is characterised in that the gate-controlled switch circuit includes：Second opens
Guan Guan, the 3rd switching tube, 3rd resistor and the 4th resistance；
The control end of the second switch pipe connects the first signal control port by the 3rd resistor, and described second opens
The input for closing pipe is connected with the input of the 3rd switching tube, the outfan connection automobile energy storage unit of the second switch pipe
Part negative terminal；
The control end of the 3rd switching tube connects the first signal control port by the 4th resistance, and the described 3rd opens
The outfan for closing pipe connects the automobile storage battery negative terminal, and wherein, automobile energy storage element anode and the automobile storage battery anode connect.
7. startup power supply circuit according to claim 1, it is characterised in that the internal resistance detection circuit includes：5th is electric
Resistance, the 4th switching tube and the 6th resistance；
One end of 5th resistance connects the automobile storage battery anode, and the other end connection the described 4th of the 5th resistance is opened
The input of pipe is closed, the outfan of the 4th switching tube connects the automobile storage battery negative terminal by the 6th resistance, described
The common port of the 4th switching tube connects the public of the Enable Pin of the microcontroller, the 4th switching tube and the 6th resistance
Hold the outfan as the internal resistance detection circuit to connect the current signal and gather port.
8. startup power supply circuit according to claim 7, it is characterised in that also include：It is connected in series in the Enable Pin
And the 7th resistance between the 4th switching tube.
9. startup power supply circuit according to claim 7, it is characterised in that also include：Current-limiting resistance, the current-limiting resistance
One end connect the current signal and gather port, the other end of the current-limiting resistance connects the 4th switching tube and described the
The common port of six resistance.
10. startup power supply circuit according to claim 9, it is characterised in that also include：Second capacitor, described second
One end of capacitor connects the common port of the current-limiting resistance and the microcontroller, the other end connection of second capacitor
Earth terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620925912.4U CN206031260U (en) | 2016-08-23 | 2016-08-23 | Start power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620925912.4U CN206031260U (en) | 2016-08-23 | 2016-08-23 | Start power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206031260U true CN206031260U (en) | 2017-03-22 |
Family
ID=58304891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620925912.4U Active CN206031260U (en) | 2016-08-23 | 2016-08-23 | Start power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206031260U (en) |
-
2016
- 2016-08-23 CN CN201620925912.4U patent/CN206031260U/en active Active
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