CN105792460B - Lighting circuit - Google Patents
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- CN105792460B CN105792460B CN201410795130.9A CN201410795130A CN105792460B CN 105792460 B CN105792460 B CN 105792460B CN 201410795130 A CN201410795130 A CN 201410795130A CN 105792460 B CN105792460 B CN 105792460B
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Abstract
The present invention provides a kind of lighting circuits, including driving circuit, power supply circuit, range-measuring circuit and light source, in which: the driving circuit is connected with the light source, and the driving circuit is used to control the electric current of output to the light source；The power supply circuit is connected with the driving circuit, and the power supply circuit is used to power for the driving circuit and the range-measuring circuit；The range-measuring circuit is connected with the driving circuit, and the range-measuring circuit is for detecting target object at a distance from lighting circuit, at least one of the height of the target object and the area of the target object.Using the present invention, can have the functions such as the area of light modulation, ranging, the height for detecting target object and target object, promote user experience.
Description
Technical field
The present invention relates to electronic technology field more particularly to a kind of lighting circuits.
Background technique
The most function of existing Portable lighting device such as flashlight is limited only to single illumination or even some illuminations
The function that equipment does not dim is unable to reach multi-functional purpose, so the use scope of Portable lighting device is still limited to.
Therefore, how to increase the function of Portable lighting device is the topic that present value must be inquired into.If in the illumination of portable device
On the basis of improve, increase the function of portable device, great convenience will be brought to the life of user and outdoor activities.
Summary of the invention
The present invention provides a kind of lighting circuit, can have light modulation, ranging, the height and target object for detecting target object
The functions such as area, promote user experience.
First aspect present invention provides a kind of lighting circuit, including driving circuit, power supply circuit, range-measuring circuit and light
Source, in which:
The driving circuit is connected with the light source, and the driving circuit is used to control the electric current of output to the light source；
The power supply circuit is connected with the driving circuit, and the power supply circuit is used to be the driving circuit and the survey
It powers away from circuit；
The range-measuring circuit is connected with the driving circuit, and the range-measuring circuit is for detecting target object and lighting circuit
At least one of distance, the height of the target object and the area of the target object.
In conjunction with the implementation of first aspect present invention, in the first possible implementation of first aspect present invention
In, the driving circuit includes drive module and first switch, in which:
The first end and second end of the drive module connects the first end and second end of the power supply circuit respectively；
The third end and the 4th end of the drive module connect the first end and second end of the light source respectively；
5th end of the drive module is grounded by the first switch, and the first switch is for controlling the driving
Module is exported to the electric current of the light source.
In conjunction with the first possible implementation of first aspect present invention, second in first aspect present invention may
Implementation in, the range-measuring circuit include range finder module, second switch, third switch and the 4th switch, in which:
The first end and second end of the range finder module connects the 6th end and the 7th end of the drive module respectively；
The third end of the range finder module is grounded by the second switch；
4th end of the range finder module is switched by the third and is grounded；
5th end of the range finder module passes through the 4th switch ground connection.
In conjunction with second of possible implementation of first aspect present invention, the third in first aspect present invention may
Implementation in, the range finder module includes distance detection unit, deletes unit and height area detecting unit, in which:
One end of the distance detection unit is the third end of the range finder module, and the distance detection unit is used for basis
The control of the second switch emits laser to the target object, with detect the target object and the lighting circuit away from
From generating corresponding distance value；
Described one end for deleting unit is the 4th end of the range finder module, and the deletion unit is used for according to the third
The distance value generated is deleted in the control of switch；
One end of the height area detecting unit is the 5th end of the range finder module, the height area detecting unit
For emitting the laser to the target object according to the control of the 4th switch, to detect the height of the target object
Or the area of the target object.
In conjunction with the first possible implementation of first aspect present invention, in the 4th kind of possibility of first aspect present invention
Implementation in, the power supply circuit includes power supply module, battery, first diode, the second diode and first capacitor,
Wherein:
The anode of the first termination first diode of the power supply module, the cathode of the first diode connects described
The anode of battery, the first end of the just extremely described power supply circuit of the battery；
The cathode of second termination second diode of the power supply module, the anode of second diode connects described
The cathode of battery, the cathode of the battery are the second end of the power supply circuit, the cathode ground connection of the battery；
The anode of the first termination first diode of the first capacitor, described in the second termination of the first capacitor
The cathode of second diode.
In conjunction with the 4th kind of possible implementation of first aspect present invention, in the 5th kind of possibility of first aspect present invention
Implementation in, the drive module includes driving chip, metal-oxide-semiconductor and voltage stabilizing chip, in which:
The driving chip is used for the electric current according to the on-off of first switch control output to the light source, described steady
Pressing chip to be used for is the light source pressure stabilizing；
The driving chip includes reset terminal, input terminal, control terminal and duty ratio output end；
The voltage stabilizing chip includes voltage input end, voltage output end and ground terminal；
The reset of the driving chip terminates the anode of the battery, the input termination the described 2nd 2 of the driving chip
The anode of pole pipe；
The control terminal of the driving chip is the 5th end of drive module；
The duty ratio output of the driving chip terminates the first end of the metal-oxide-semiconductor；
The second end of the metal-oxide-semiconductor is the first end of the drive module, and the second end of the metal-oxide-semiconductor also connects power supply electricity
Pressure, the third end of the metal-oxide-semiconductor are the third end of the drive module；
The voltage input of the voltage stabilizing chip terminates the first end of the metal-oxide-semiconductor, the voltage output end of the voltage stabilizing chip
Ground terminal for the 4th end of the drive module, the voltage stabilizing chip is grounded.
In conjunction with the 5th kind of possible implementation of first aspect present invention, in the 6th kind of possibility of first aspect present invention
Implementation in, the input terminal of the driving chip includes input end of clock, power input and ground terminal, in which:
The input end of clock of the driving chip connects the anode of second diode；
The power input of the driving chip terminates the anode of second diode；
The ground connection of the driving chip terminates the anode of second diode.
In conjunction with the 6th kind of possible implementation of first aspect present invention, in the 7th kind of possibility of first aspect present invention
Implementation in, the drive module further include first resistor, second resistance, 3rd resistor, the 4th resistance and second electricity
Hold, in which:
The reset terminal of the first termination driving chip of the first resistor, described in the second termination of the first resistor
The anode of battery；
The input end of clock of the first termination driving chip of the second resistance, the second termination of the second resistance
The anode of second diode；
The power input of the first termination driving chip of second capacitor, the second termination of second capacitor
The anode of second diode；
The first end of the first termination metal-oxide-semiconductor of the 3rd resistor, the second termination of the 3rd resistor are described steady
Press the voltage input end of chip；
The first end of the first termination metal-oxide-semiconductor of the 4th resistance, the second termination drive of the 4th resistance
The duty ratio output end of dynamic chip.
In conjunction with the 5th kind of possible implementation of first aspect present invention, in the 8th kind of possibility of first aspect present invention
Implementation in, the driving chip further includes the first pressure stabilizing end and the second pressure stabilizing end, and the drive module further includes the 5th
Resistance and voltage-stablizer, in which:
First pressure stabilizing end of the first termination driving chip of the 5th resistance, the second termination of the 5th resistance
The first end of the voltage-stablizer；
Second pressure stabilizing end of the second termination driving chip of the voltage-stablizer；
The third end of the voltage-stablizer is grounded.
In conjunction with the 8th kind of possible implementation of first aspect present invention, in the 9th kind of possibility of first aspect present invention
Implementation in, the light source is LED light emitting diode, and the first end of the light source is the anode of the light emitting diode,
The second end of the light source is the cathode of the light emitting diode；
The first end of the metal-oxide-semiconductor is grid, and the second end of the metal-oxide-semiconductor is source electrode, and the third end of the metal-oxide-semiconductor is leakage
Pole；
The first end of the voltage-stablizer is cathode, and the second end of the voltage-stablizer is with reference to pole, the third of the voltage-stablizer
End is anode.
Using the present invention, driving circuit is connected with LED, and driving circuit is used to control the electric current of output to LED, power supply circuit
It is connected with driving circuit, power supply circuit is used to power for driving circuit and range-measuring circuit, and range-measuring circuit is connected with driving circuit, surveys
Away from circuit be used to detect target object at a distance from lighting circuit, in the area of the height of target object and target object extremely
Few one kind can have the functions such as the area of light modulation, ranging, the height for detecting target object and target object, make lighting circuit
Function it is more diversified, promoted user experience.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for this field
For those of ordinary skill, without any creative labor, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of modular structure schematic diagram of an embodiment of lighting circuit of the embodiment of the present invention；
Fig. 2 is a kind of modular structure schematic diagram of another embodiment of lighting circuit of the embodiment of the present invention；
Fig. 3 is a kind of modular structure schematic diagram of the 3rd embodiment of lighting circuit of the embodiment of the present invention；
Fig. 4 is a kind of power supply circuit of another embodiment of lighting circuit of the embodiment of the present invention and the circuit of drive module
Structural schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Using the embodiment of the present invention, can have the area of light modulation, ranging, the height for detecting target object and target object
Etc. functions, promoted user experience.
Referring to Fig. 1, Fig. 1 is a kind of modular structure schematic diagram of an embodiment of lighting circuit of the embodiment of the present invention.
As shown in Figure 1, the lighting circuit includes driving circuit 1, power supply circuit 2, range-measuring circuit 3 and Light-Emitting Diode light source 4,
In:
Driving circuit 1 is connected with light source 4, and driving circuit 1 is used to control the electric current of output to light source 4；
Power supply circuit 2 is connected with driving circuit 1, and power supply circuit 2 is used to power for driving circuit 1 and range-measuring circuit 3；
Range-measuring circuit 3 is connected with driving circuit 1, and range-measuring circuit 3 is for detecting target object at a distance from lighting circuit, mesh
Mark at least one of height and the area of target object of object.
In the specific implementation, power supply circuit 2 is that driving circuit 1 and range-measuring circuit 3 provide operating voltage, driving circuit 1 is used for
Control output makes the current control of output in 350mA, 220mA or 0mA, corresponding light source 4 then shows to the electric current of light source 4
Strong light, dim light or the effect of extinguishing out.Range-measuring circuit 3 is for measuring target object at a distance from lighting circuit, target object
Height or at least one of the area of target object.When measuring target object at a distance from lighting circuit, ranging electricity
Road 3 to target object emit laser, positioning laser reach position, and detect laser arrival position and lighting circuit away from
From ultimately producing distance value and shown by display screen；When measuring the height of target object, range-measuring circuit 3 passes through inspection
Target object is surveyed at a distance from lighting circuit and obtains the height for emitting the angle calculation target object of laser, generates height
Value, then shown by display screen；When measuring the area of target object, range-measuring circuit 3 passes through transmitting laser measurement target
The side length of object, then the area of target object is calculated, the value of area is generated, then shown by display screen.
Optionally, as shown in Fig. 2, driving circuit 1 includes drive module 11 and first switch S1, in which: drive module
11 first end and second end connects the first end and second end of power supply circuit 2 respectively；The third end and the 4th end of drive module 11
The first end and second end of light source 4 is connect respectively；5th end of drive module 11 is grounded by first switch S1, and first switch S1 is used
In the electric current of control drive module 11 output to light source 4.
In the specific implementation, existing be defined as follows each pin of light source 4: the first end of light source 4 is anode, light source 4
Second end is cathode.
As a kind of enforceable mode, first switch S1 is used to trigger the on-off that drive module 11 controls light source 4.Example
Such as, when first switch S1 is closed for the first time, drive module 11 exports the electric current of 350mA, and light source 4 is made to issue strong light；It opens when first
When pass S1 is closed again, drive module 11 exports the electric current of 220mA, and light source 4 is made to issue dim light；When first switch S1 third time is closed
When conjunction, drive module 11 exports the electric current of 0mA, extinguishes light source 4.For controlling the closure number or closure of first switch S1
This embodiment is not limited come the output electric current that controls drive module 11 for duration, can arbitrarily be arranged first switch S1's
Closed manners control the output electric current of drive module 11.In addition, the electric current of output can also be arbitrarily arranged, can also export more
Grade electric current controls the brightness of light source 4, and this embodiment is not limited.
Optionally, range-measuring circuit 3 includes range finder module 31, second switch S2, third switch S3 and the 4th switch S4,
In: the first end and second end of range finder module 31 connects the 6th end and the 7th end of drive module 11 respectively；The of range finder module 31
Three ends are grounded by second switch S2；4th end of range finder module 31 is grounded by third switch S3；The 5th of range finder module 31
End is grounded by the 4th switch S4.
Optionally, as shown in figure 3, range finder module 31 includes distance detection unit 311, deletes unit 312 and height face
Product detection unit 313, in which: one end of distance detection unit 311 is the third end of range finder module 31, distance detection unit 311
It is raw to detect target object at a distance from lighting circuit for emitting laser to target object according to the control of second switch S2
At corresponding distance value；The one end for deleting unit 312 is the 4th end of range finder module 31, deletes unit 312 and is used for according to third
The distance value generated is deleted in the control of switch S3；One end of height area detecting unit 313 is the 5th end of range finder module 31, high
It spends area detecting unit 313 to be used to emit laser to target object according to the control of the 4th switch S4, to detect target object
The area of height or target object.
In the specific implementation, second switch S2 detects target object and lighting circuit for command range detection unit 311
Distance.Specifically, triggering distance detection unit 311 can be opened after second switch S2 is closed and reaches preset time, and enters and survey
Span from function, after second switch S2 second is closed, distance detection unit 311 emits laser, positioning to target object
The position that laser reaches, and the position for detecting laser arrival generates distance value at a distance from lighting circuit.If second switch S2
It is closed, then shows the distance value of generation by display screen three times.
In the specific implementation, if it is determined that the function of current range finder module 31 is measurement distance, then under current function setting
Second switch S2 is continuously closed i.e. measurable target object twice and is shown at a distance from lighting circuit, and through display screen.
By controlling closure number or the closure duration of second switch S2 come the measurement object of command range detection unit 311
Body is at a distance from lighting circuit, and this embodiment is not limited, the closed manners of second switch S2 can be arbitrarily set control away from
Function with a distance from the measurement of detection unit 311.
In the specific implementation, third switch S3 is for deleting the distance value that distance detection unit 311 is shown in display screen.Tool
Body, range finder module 31 can repeatedly measure target object at a distance from lighting circuit, therefore display screen can show multiple distance values.
The continuous closure of third switch S3 then can control deletion unit 312 successively to delete the multiple distance values shown in display screen.
As a kind of enforceable mode, the also controllable unit 312 of deleting of the continuous closure of third switch S3 is successively deleted
The multiple height values or area value shown in display screen.Third switch S3 closure can control range finder module after reaching preset time
31 close the function of detection.Deletion unit is controlled by controlling closure number or the closure duration of third switch S3
Multiple distance values, height value or the area value shown in 312 deletion display screens, this embodiment is not limited, can arbitrarily set
The closed manners of third switch S3 are set to control the function of deleting unit 312 and delete multiple distance values, height value or area value.
In the specific implementation, the 4th switch S4 be used for control height area detecting unit 313 detect target object height or
The area of target object.Specifically, the function of the 4th switch S4 open detection height in moment closure can be set.Height area
Detection unit 313 emits laser at least one reference point of target object, positions the position that each laser reaches, obtains each
Reference point at a distance from lighting circuit, and obtain transmitting laser to each reference point when angle, further according to obtain it is each away from
From with corresponding angle, the height value of target object is calculated, then shown by display screen.Alternatively, height area detecting list
Member 313 emits laser at least one reference point of target object and the reference point on ground, positions the position that each laser reaches
It sets, obtains the reference point on each reference point and ground at a distance from lighting circuit, and obtain transmitting laser to each reference point
When angle calculate height value of the target object relative to ground, finally further according to obtained each distance and corresponding angle
It is shown by display screen.
As a kind of enforceable mode, it can set and control the inspection of height area when the 4th switch S4 is closed within a preset time
Survey the area that unit 313 measures target object.Height area detecting unit 313 to multiple reference points of target object by emitting
Laser calculates the area of target object further according to calculated side length to calculate each side length of target object, and passes through
Display screen is shown.It is the prior art by emitting laser to calculate each side length of target object to multiple reference points, this
Embodiment then repeats no more.
Optionally, electrical block diagram as shown in Figure 3, power supply circuit 2 include power supply module 21, battery B1, first
Diode D1, the second diode D2 and first capacitor C1, in which: the first termination first diode D1 of power supply module 21 is just
Pole, the cathode of first diode D1 connect the anode of battery B1, the just extremely first end of power supply circuit 2 of battery B1；Power supply module
The cathode of 21 second the second diode D2 of termination, the anode of the second diode D2 connect the cathode of battery B1, the cathode of battery B1
Cathode for the second end of power supply circuit 2, battery B1 is grounded；The anode of the first termination first diode D1 of first capacitor C1,
The cathode of second the second diode D2 of termination of first capacitor C1.
In the specific implementation, power supply module 21 is depressured by first diode D1 and the second diode D2, then filled for battery B1
Electricity can extract power supply module 21 after battery B1 is full of, and battery B1 drive module 11 is made to power.
Optionally, drive module 11 includes driving chip U1, metal-oxide-semiconductor Q1 and voltage stabilizing chip U3, in which: driving chip U1
For the electric current according to the on-off of first switch S1 control output to light source 4, voltage stabilizing chip U3 is used to be 4 pressure stabilizing of light source；Driving
Chip U1 includes reset terminal RES, input terminal, control terminal PA2 and duty ratio output end PWM；Voltage stabilizing chip U3 includes that voltage is defeated
Enter to hold VDD, voltage output end Vout and ground terminal GND；The reset terminal RES of driving chip U1 connects the anode of battery B1, driving
The anode of the second diode D2 of input termination of chip U1；The control terminal PA2 of driving chip U1 is the 5th end of drive module 11；
The duty ratio output end PWM of driving chip U1 connects the first end of metal-oxide-semiconductor Q1；The second end of metal-oxide-semiconductor Q1 is the of drive module 11
One end, the second end of metal-oxide-semiconductor Q1 also meet supply voltage VCC, and the third end of metal-oxide-semiconductor Q1 is the third end of drive module 11；Pressure stabilizing
The voltage input end VDD of chip U3 connects the first end of metal-oxide-semiconductor Q1, and the voltage output end Vout of voltage stabilizing chip U3 is drive module 11
The 4th end, voltage stabilizing chip U3 ground terminal GND ground connection.
In the specific implementation, the duty ratio output end PWM of driving chip U1 is used to be accounted for according to the control of the on-off of first switch S1
Sky is exported with passing through metal-oxide-semiconductor Q1 control to the electric current of light source 4, to control light source than the width of the output end PWM square wave exported
4 brightness change.Voltage stabilizing chip U3 is used for voltage of the stabilization on light source 4, enables 4 steady operation of light source.Battery B1
Power supply is provided by the reset terminal RES of driving chip U1 for driving chip U1.
Optionally, the input terminal of driving chip U1 includes input end of clock OSC1, power input VDD and ground terminal
VSS, in which: the input end of clock OSC1 of driving chip U1 connects the anode of the second diode D2；The power input of driving chip U1
End VDD connects the anode of the second diode D2；The ground terminal VSS of driving chip U1 connects the anode of the second diode D2.
Optionally, drive module 11 further include first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4 with
And the second capacitor C2, in which: the reset terminal RES of the first termination driving chip U1 of first resistor R1, the second of first resistor R1
Terminate the anode of battery B1；The input end of clock OSC1 of the first termination driving chip U1 of second resistance R2, second resistance R2's
The anode of second the second diode D2 of termination；The power input VDD of the first termination driving chip U1 of second capacitor C2, second
The anode of second the second diode D2 of termination of capacitor C2；The first end of the first termination metal-oxide-semiconductor Q1 of 3rd resistor R3, third electricity
Hinder the voltage input end VDD of the second termination voltage stabilizing chip U3 of R3；The first end of the first termination metal-oxide-semiconductor Q1 of 4th resistance R4,
The duty ratio output end PWM of the second termination driving chip U1 of 4th resistance R4.
Optionally, driving chip U1 further includes the first pressure stabilizing end PB3 and the second pressure stabilizing end PB0, and drive module 11 further includes
5th resistance R5 and voltage-stablizer U2, in which: the first pressure stabilizing end PB3 of the first termination driving chip U1 of the 5th resistance R5, the
The first end of the second termination voltage-stablizer U2 of five resistance R5；The second pressure stabilizing end of the second termination driving chip U1 of voltage-stablizer U2
PB0；The third end of voltage-stablizer U2 is grounded.
In the specific implementation, voltage-stablizer U2 is used for the builtin voltage of stabilized driving chip U1, guarantee that driving chip U1 can be steady
Fixed work.
Optionally, light source 4 is LED light emitting diode, and the first end of light source 4 is the anode of light emitting diode, the of light source 4
Two ends are the cathode of light emitting diode；The first end of metal-oxide-semiconductor Q1 is grid, and the second end of metal-oxide-semiconductor Q1 is source electrode, metal-oxide-semiconductor Q1's
Third end is drain electrode；The first end of light source 4 is anode, and the second end of light source 4 is cathode；The first end of metal-oxide-semiconductor Q1 is grid,
The second end of metal-oxide-semiconductor Q1 is source electrode, and the third end of metal-oxide-semiconductor Q1 is drain electrode；The first end of voltage-stablizer U2 is cathode, voltage-stablizer U2's
Second end is with reference to pole, and the third end of voltage-stablizer U2 is anode.
The working principle of the power supply circuit of the embodiment of the present invention 2 and driving circuit 1 is described in detail below.
Power supply circuit 2 is battery B1 charging by power supply module 21, so that battery B1 is the drive module 11 of driving circuit 1
Power supply is provided.Voltage-stablizer U2 in drive module 11 is for the voltage inside stabilized driving chip U1.When first switch S1 according to
When preset closed manners are closed, the closed state of the control terminal PA2 detection first switch S1 of driving chip U1, driving chip U1
The closed state control output signal of the first switch S1 that is then detected according to control terminal PA2 of duty ratio output end PWM account for
Empty ratio changes the brightness of light source 4 with this by metal-oxide-semiconductor Q1 control output to the electric current of light source 4.And voltage stabilizing chip U3 is for steady
The tailor-made voltage on light source 4, so that the brightness of light source 4 be made to be in stable state.
Using the embodiment of the present invention, driving circuit is connected with light source, and driving circuit is used to control the electric current of output to light source,
Power supply circuit is connected with driving circuit, and power supply circuit is used to power for driving circuit and range-measuring circuit, range-measuring circuit and driving electricity
Road is connected, and range-measuring circuit is used to detecting target object at a distance from lighting circuit, the height of target object and target object
At least one of area is provided simultaneously with the function of light modulation and ranging, keeps the function of lighting circuit more diversified, can promote use
Family experience sense.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Module or unit in the device of that embodiment of the invention can be combined, divided and deleted according to actual needs.
The module or module of the embodiment of the present invention, can be with universal integrated circuit (such as central processor CPU), or with dedicated
Integrated circuit (ASIC) Lai Shixian.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (5)
1. a kind of lighting circuit, which is characterized in that including driving circuit, power supply circuit, range-measuring circuit and light source, in which:
The driving circuit is connected with the light source, and the driving circuit is used to control the electric current of output to the light source；Wherein,
The driving circuit includes drive module and first switch, and the first end and second end of the drive module is separately connected described
The first end and second end of power supply circuit, the third end and the 4th end of the drive module are separately connected the first end of the light source
And second end, the 5th end of the drive module are grounded by the first switch, the first switch is for controlling the drive
Dynamic model block is exported to the electric current of the light source；
The power supply circuit is connected with the driving circuit, and the power supply circuit is used for as the driving circuit and ranging electricity
Road power supply；Wherein, the power supply circuit includes power supply module, battery, first diode, the second diode and first capacitor,
The first end of the power supply module connects the anode of the first diode, and the cathode of the first diode connects the battery
Anode, the first end of the just extremely described power supply circuit of the battery, the power supply module second end connection described second
The cathode of diode, the anode of second diode connect the cathode of the battery, and the cathode of the battery is the power supply
The second end of circuit, the cathode ground connection of the battery；The first end of the first capacitor connects the anode of the first diode,
The second end of the first capacitor connects the cathode of second diode；
The range-measuring circuit is connected with the driving circuit, the range-measuring circuit be used to detect target object and lighting circuit away from
From at least one of, the height of the target object and area of the target object.
2. lighting circuit according to claim 1, which is characterized in that the range-measuring circuit includes range finder module, second opens
It closes, third switchs and the 4th switch, in which:
The first end and second end of the range finder module connects the 6th end and the 7th end of the drive module respectively；
The third end of the range finder module is grounded by the second switch；
4th end of the range finder module is switched by the third and is grounded；
5th end of the range finder module passes through the 4th switch ground connection；
The range finder module includes distance detection unit, deletes unit and height area detecting unit, in which:
One end of the distance detection unit is the third end of the range finder module, and the distance detection unit is used for according to
The control of second switch emits laser to the target object, to detect the target object at a distance from the lighting circuit,
Generate corresponding distance value；
Described one end for deleting unit is the 4th end of the range finder module, and the deletion unit is used to be switched according to the third
Control delete generate distance value；
One end of the height area detecting unit is the 5th end of the range finder module, and the height area detecting unit is used for
Emit the laser to the target object according to the control of the 4th switch, with detect the target object height or
The area of the target object.
3. lighting circuit according to claim 1, which is characterized in that the drive module include driving chip, metal-oxide-semiconductor,
First resistor, second resistance, 3rd resistor, the 4th resistance and the second capacitor and voltage stabilizing chip, in which:
The driving chip is used for the electric current according to the control output of the on-off of the first switch to the light source, the pressure stabilizing core
Piece is used to be the light source pressure stabilizing；
The driving chip includes reset terminal, input terminal, control terminal and duty ratio output end；
The voltage stabilizing chip includes voltage input end, voltage output end and ground terminal；
The reset of the driving chip terminates the anode of the battery, and the input of the driving chip terminates second diode
Anode；
The control terminal of the driving chip is the 5th end of drive module；
The duty ratio output of the driving chip terminates the first end of the metal-oxide-semiconductor；
The input terminal of the driving chip includes input end of clock, power input and ground terminal, in which:
The power input VSS of the driving chip connects the anode of second diode；
The ground connection of the driving chip terminates the anode of second diode；
The reset terminal of the first termination driving chip of the first resistor, the second termination battery of the first resistor
Anode；
The input end of clock of the first termination driving chip of the second resistance, described in the second termination of the second resistance
The anode of second diode；
The power input of the first termination driving chip of second capacitor, described in the second termination of second capacitor
The anode of second diode；
The first end of the first termination metal-oxide-semiconductor of the 3rd resistor, the second termination pressure stabilizing core of the 3rd resistor
The voltage input end of piece；
The first end of the first termination metal-oxide-semiconductor of the 4th resistance, the second termination driving core of the 4th resistance
The duty ratio output end of piece；
The second end of the metal-oxide-semiconductor is the first end of the drive module, and the second end of the metal-oxide-semiconductor also connects supply voltage, institute
The third end for stating metal-oxide-semiconductor is the third end of the drive module；
The voltage input of the voltage stabilizing chip terminates the first end of the metal-oxide-semiconductor, and the voltage output end of the voltage stabilizing chip is institute
State the 4th end of drive module, the ground terminal ground connection of the voltage stabilizing chip, wherein the first end of the metal-oxide-semiconductor is grid, described
The second end of metal-oxide-semiconductor is source electrode, and the third end of the metal-oxide-semiconductor is drain electrode.
4. lighting circuit according to claim 3, which is characterized in that the driving chip further includes the first pressure stabilizing end and
Two pressure stabilizing ends, the drive module further include the 5th resistance and voltage-stablizer, in which:
First pressure stabilizing end of the first termination driving chip of the 5th resistance, described in the second termination of the 5th resistance
The first end of voltage-stablizer；
Second pressure stabilizing end of the second termination driving chip of the voltage-stablizer；
The third end of the voltage-stablizer is grounded；
The first end of the voltage-stablizer is cathode, and the second end of the voltage-stablizer is with reference to pole, and the third end of the voltage-stablizer is
Anode.
5. lighting circuit according to claim 4, which is characterized in that
The light source is LED light emitting diode, and the first end of the light source is the anode of the light emitting diode, the light source
Second end is the cathode of the light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795130.9A CN105792460B (en) | 2014-12-18 | 2014-12-18 | Lighting circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795130.9A CN105792460B (en) | 2014-12-18 | 2014-12-18 | Lighting circuit |
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| Publication Number | Publication Date |
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| CN105792460A CN105792460A (en) | 2016-07-20 |
| CN105792460B true CN105792460B (en) | 2019-08-13 |
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| Country | Link |
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| CN (1) | CN105792460B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086016A (en) * | 1992-07-02 | 1994-04-27 | 川德技术公司 | Motor vehicles Range Measurement System with compound reflector display device |
| CN101391587A (en) * | 2007-08-08 | 2009-03-25 | 哈曼贝克自动系统股份有限公司 | Vehicle illumination system |
| US20140320023A1 (en) * | 2013-04-24 | 2014-10-30 | GE Lighting Solutions, LLC | Lighting systems and methods providing active glare control |
-
2014
- 2014-12-18 CN CN201410795130.9A patent/CN105792460B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086016A (en) * | 1992-07-02 | 1994-04-27 | 川德技术公司 | Motor vehicles Range Measurement System with compound reflector display device |
| CN101391587A (en) * | 2007-08-08 | 2009-03-25 | 哈曼贝克自动系统股份有限公司 | Vehicle illumination system |
| US20140320023A1 (en) * | 2013-04-24 | 2014-10-30 | GE Lighting Solutions, LLC | Lighting systems and methods providing active glare control |
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| CN105792460A (en) | 2016-07-20 |
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