CN206374648U - Vehicle signal light switch circuit - Google Patents
Vehicle signal light switch circuit Download PDFInfo
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- CN206374648U CN206374648U CN201720040468.2U CN201720040468U CN206374648U CN 206374648 U CN206374648 U CN 206374648U CN 201720040468 U CN201720040468 U CN 201720040468U CN 206374648 U CN206374648 U CN 206374648U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The utility model discloses a kind of vehicle signal light switch circuit, and on-off circuit includes：Power module, main circuit, parallel circuit and on-off circuit；Main circuit includes first resistor, first switch pipe, second switch pipe, first group of light emitting diode and first group of diode composition；Main circuit is sequentially connected in series after first switch pipe, first group of light emitting diode, second switch pipe and first group of diode and is grounded, the two ends of first resistor are connected in parallel on the input and output end of first switch pipe by the power end of power module；Parallel circuit includes second group of light emitting diode, second group of diode and the 3rd switching tube composition；Parallel circuit is sequentially connected in series after second group of light emitting diode, the 3rd switching tube and second group of diode and is grounded since the output end of first switch pipe.The utility model can be applied to most of platform part；The situation for preventing LED brightness inconsistent；Power consumption is extremely low, and circuit control panel can accomplish very little, so as to reduce structure design difficulty；Under point serializer circuit LED is realized to damage and make the fully closed function of whole LED.
Description
Technical field：
The utility model is related to vehicle signal light switch circuit field, is opened more specifically to automobile turn signal lamp
The technical field on powered-down road.
Background technology：
At present among automobile circuit design, more and more use platform part module to drive, platform part module
It is exactly a kind of standard module, can adapt to drive most LED current scope, LED type number and LED quantity, without again
Again exploitation design, saves substantial amounts of cost and time.But have maximum output voltage in the design of platform part module
Limitation so that the method that is designed without of plurality of LEDs series connection is fully achieved, and is frequently subjected to the limitation of serial number.In such case
Under, in order to meet the requirement of moulding, it is necessary to which original LED is carried out into a point string design.And the feelings exported in platform part in single channel
Under condition, it is impossible to after realizing that a LEDs fail, the function that whole circuit function is closed, therefore the requirement of regulation can not be met
(GB17509-2008).In light of this situation, it is necessary to develop a kind of new breaking circuit, it is possible to achieve the LED under platform part
Fully closed function.
Utility model content：
According to an embodiment of the present utility model, a kind of vehicle signal light switch circuit is proposed, including：Power module, master
Circuit, parallel circuit and on-off circuit；
Main circuit includes first resistor (R1), first switch pipe (Q1), second switch pipe (Q2), first group of light emitting diode
(LED1；) and first group of diode (D1 LED3；D3) constitute；
Main circuit is sequentially connected in series the first switch pipe (Q1), first group of hair by the power end (Vcc) of power module
Optical diode (LED1；LED3), second switch pipe (Q2) and first group of diode (D1；D3) it is grounded afterwards, first resistor
(R1) two ends are connected in parallel on the input and output end of first switch pipe (Q1)；
Parallel circuit includes second group of light emitting diode (LED2；LED4), second group of diode (D2；D4) switched with the 3rd
Manage (Q3) composition；
Parallel circuit is sequentially connected in series second group of light emitting diode since the output end of the first switch pipe (Q1)
(LED2；LED4), the 3rd switching tube (Q3) and second group of diode (D2；D4) it is grounded afterwards；
Wherein, first group of light emitting diode (LED1；) and second group of light emitting diode (LED2 LED3；LED4)
Quantity and first group of diode (D1；) and second group of diode (D2 D3；D4 quantity) is equal；
On-off circuit includes first switch circuit, second switch circuit；
First switch circuit controls being switched off and on for first switch pipe (Q1)；Second switch circuit control described the
Two switching tubes (Q2) and the 3rd switching tube (Q3's) is switched off and on；
In one embodiment, first switch pipe (Q1) is managed for P-MOSFET, second switch pipe (Q2) and the 3rd switching tube
(Q3) managed for N-MOSFET, first switch circuit includes second resistance (R2), 3rd resistor (R3), the 4th resistance (R4), the 5th
Resistance (R5), the 6th resistance (R6), the first zener diode (Z1), the first triode (TR1) and the second triode (TR2) group
Into；
One end of second resistance (R2) and power end (Vcc) connection, the other end of second resistance (R2) pass through 3rd resistor
(R3) and voltage-regulator diode (Z1) negative pole connection, the positive pole of voltage-regulator diode (Z1) is grounded afterwards by the 4th resistance (R4)；
The common port of second resistance (R2) and 3rd resistor (R3) is connected with the G poles of first switch pipe (Q1)；
The negative pole of voltage-regulator diode (Z1) is connected with the colelctor electrode of the first triode (TR1), the hair of the first triode (TR1)
Emitter-base bandgap grading is connected with the colelctor electrode of the second triode (TR2), the grounded emitter of the second triode (TR2)；
The base stage of first triode (TR1) is connected by the 5th resistance (R5) with the S poles of second switch pipe (Q2)；Two or three
The base stage of pole pipe (TR2) is connected by the 6th resistance (R6) with the S poles of the 3rd switching tube (Q3).
In one embodiment, second switch circuit includes the 7th resistance (R7), the 8th resistance (R8) and the 9th resistance
(R9)；
One end of 7th resistance (R7) is connected with power end (Vcc), and the other end of the 7th resistance (R7) passes through the 9th resistance
(R9) it is grounded, is connected in G pole of the other end by the 8th resistance (R8) afterwards with second switch pipe (Q2) of the 7th resistance (R7) afterwards,
The G poles of second switch pipe (Q2) and the connection of the G poles of the 3rd switching tube (Q3).
In one embodiment, first group of light emitting diode (LED1；LED3；LED5；LED7；LED9) lighted with second group
Diode (LED2；LED4；LED6；LED8；LED10) 5 light emitting diodes all respectively connected for anode and cathode；First group of diode
(D1；) and second group of diode (D2 D3；D4) 2 diodes all respectively connected for anode and cathode.
The vehicle signal on-off circuit of the utility model design, has the advantages that following：
(1) most of platform part can be applied to
(2) after LED point string, the size of current of the circuit meeting string LED of autobalance two is prevented
The inconsistent situation of LED brightness is stopped.
(3) circuit power consumption is extremely low, therefore circuit control panel can accomplish very little, so as to reduce structure design difficulty.
(4) under point serializer circuit LED is realized to damage and make whole LED fully closed
Function
Brief description of the drawings：
The above and other feature of the utility model, property and advantage are by by with reference to the accompanying drawings and examples
Describe and become apparent, identical reference represents identical feature all the time in the accompanying drawings, wherein：
Fig. 1 discloses the circuit structure diagram of the vehicle signal light switch circuit according to an embodiment of the present utility model.
Embodiment：
With reference to shown in Fig. 1, Fig. 1 discloses the electricity of the vehicle signal light switch circuit according to an embodiment of the present utility model
Line structure figure.
A kind of vehicle signal light switch circuit, it is characterised in that the on-off circuit includes：Power module CON1, main electricity
Road, parallel circuit and on-off circuit；
The main circuit include resistance R1, switching tube Q1, switching tube Q2, LED 1, LED3, LED5, LED7,
LED9 and diode D1, D3 composition；
Power module CON1 has two ports, and one is voltage output end VCCThat is power end, another is earth terminal GND,
In the voltage output end V of the present embodimentCCVoltage be 15V, Q1 is P-MOSFET pipes (model ZXMP10A17G), and Q2 and Q3 are N-
MOSFET manages (model：ZXMN6A08E6Q),
Main circuit by power module CON1 voltage output end (Vcc), be sequentially connected in series Q1, LED1, LED3, LED5,
LED7, LED9, Q2 and D1, D3 (models：S1JH) afterwards with earth terminal GND connections；
Wherein it is anode and cathode series connection, i.e. LED1 negative electrode and LED3 anode between LED1, LED3, LED5, LED7, LED9
Connection, LED3 negative electrode and LED5 anode connection, the anode connection of LED5 negative electrode and LED7, LED7 negative electrode and LED9's
Anode is connected.
The D poles connection of LED9 negative electrode and Q2, Q2 S poles and D1 anode connection, the anode connection of D1 negative electrode and D3,
D3 negative electrode and earth terminal GND connections.
In the present embodiment, LED1 anode and Q1 D poles connection, Q1 S poles and power module CON1 voltage output
Hold (Vcc) connection.Resistance R1 two ends are connected with Q1 D poles respectively, Q1 S poles form in parallel after connecting.
With continued reference to Fig. 1, in addition to a parallel circuit, parallel circuit include second group of light emitting diode (LED2,
LED4, LED6, LED8, LED10), second group of diode (D2, D4) and switching tube Q3 composition；
Parallel circuit since Q1 D poles, be sequentially connected in series after LED2, LED4, LED6, LED8, LED10, Q3 and D2, D4 and
Earth terminal GND connections.
It is understood that the quantity of first group and second group light emitting diode does not have absolute limitation, every group at least 2
It is individual, but the quantity of first group of light emitting diode is equal with the quantity of second group of light emitting diode.It again it will be understood that
It is that the quantity of first group and second group diode is also without absolute limitation, every group at least 1 group, but first group of diode
If quantity is also equal with the quantity of second group of diode.
Wherein it is anode and cathode string between LED2, LED4, LED6, LED8, LED10 in the present embodiment with continued reference to Fig. 1
The anode connection of connection, i.e. LED2 negative electrode and LED4, LED4 negative electrode and LED6 anode connection, LED6 negative electrode and LED8's
Anode is connected, the anode connection of LED8 negative electrode and LED10.
With continued reference to Fig. 1, the D poles connection of LED10 negative electrode and Q3, Q3 S poles and D2 anode connection, D2 negative electrode and
D4 anode connection, D4 negative electrode and earth terminal GND connections.
With continued reference to Fig. 1, on-off circuit includes first switch circuit, second switch circuit；
First switch circuit control Q1's is switched off and on；Second switch circuit control Q2's and Q3 is switched off and on；
In the present embodiment, first switch circuit is included by resistance R2, R3, R4, R5, R6, zener diode Z1 (models：BZX84C5V1)、
Triode TR1 and triode TR2 compositions；
Resistance R2 one end and power module CON1 voltage output end VCCEnd connection, the R2 other end passes through R3 and voltage stabilizing
Diode Z1 negative pole connection, voltage-regulator diode Z1 positive pole after R4 with earth terminal GND by being connected.R2 and R3 common port with
Q1 G poles connection；
Voltage-regulator diode Z1 negative pole is connected with triode TR1 colelctor electrode, triode TR1 emitter stage and triode
TR2 colelctor electrode connection, triode TR2 emitter stage and earth terminal GND connections；
Triode TR1 base stage is connected by resistance R5 and Q2 S poles；The S poles that triode TR2 base stage passes through R6 and Q3
Connection.
With continued reference to Fig. 1, second switch circuit includes resistance R7, R8 and R9；
R7 one end with and power module CON1 voltage output end VCCEnd connection, the R7 other end is by after R9 and being grounded
GND connections are held, the R7 other end is connected by the G poles after R8 with Q2, Q2 G poles and Q3 G poles connection.
Embodiment one
Under normal condition：
(1) when power supply VCC powers, such as when VCC output end voltages are 15V, this voltage passes through R7=15k and R9=
After 5.1k partial pressure, N-MOSFET pipes Q2 and Q3 G pole tensions are 3.8V, in high level state, N-MOSFET pipes Q2, Q3
It is in the conduction state.
(2) after N-MOSFET pipes Q2, Q3 conducting, electric current is flowed through after big resistance R1=10k, flows through light emitting diode
LED1, LED3, LED5, LED7, LED9, then earth terminal is returned to after N-MOSFET pipes Q2, diode D1 and D3, now, by
In the on state characteristic of diode, 1.4V voltage can be set up in N-MOSFET pipes Q2 and Q3 S poles.
(3) because N-MOSFET pipes Q2 and Q3 S pole tensions are in for 1.4V, i.e. triode TR1 and TR2 B pole tensions
High level, triode TR1 and TR2 are opened and turned on so that triode TR1 C extremely low levels, triode TR1 C pole tensions
Close to ground.By R2=6.8k and R3=30k partial pressure relation, the voltage for making P-MOSFET pipes Q1 VGS is -2.7V, main
The P-MOSFET pipes Q1 of circuit opens conducting, and high current is all luminous by being lighted after 1~LED10 of LED immediately
Diode.
Under malfunction：
It is that LED 9 is damaged in the present embodiment after a LED is damaged, LED1,
This serializer circuit of LED3, LED5, LED7, LED9 will be in off state, therefore triode TR1 B pole tensions are in low level,
Triode TR1 shut-off cut-offs, triode TR1 C pole tensions are changed into high level from low level.Bleeder circuit will be by original electricity
Resistance R2 and R3 partial pressure is changed into resistance R2, R3, voltage-stabiliser tube Z1 and resistance R4 and carries out partial pressure, because R4 resistance value is far longer than R2
Resistance value, therefore the voltage at R2 two ends can be less than P-MOSFET pipes Q1 cut-in voltage, and the P-MOSFET pipes Q1 of main circuit will
Shut-off cut-off.
Now electric current can only by flowing to LED 2, LED4, LED6, LED8, LED10 after big resistance R1, but
Because R1 resistance value is big, flowing through LED current can be very small, and LED 2, LED4, LED6, LED8, LED10 are by nothing
Method starts, therefore this string LED also will not be bright.It is achieved thereby that one one closes fully closed function.
A point string design circuit for this point of string signal lamp is to meet platform part module to have the limitation of maximum output voltage,
Platform part is also met simultaneously in the case where single channel is exported, and is realized after a LED failure, will entirely be sent out
The function that optical diode LED function is closed, can meet regulation GB17509-2008 requirement.
Above-described embodiment, which is available to, to be familiar with person in the art to realize or using of the present utility model, be familiar with ability
The personnel in domain can in the case where not departing from utility model thought of the present utility model, above-described embodiment is made various modifications or
Change, thus protection domain of the present utility model do not limit by above-described embodiment, and should meet claims to mention
Inventive features maximum magnitude.
Claims (4)
1. a kind of vehicle signal light switch circuit, it is characterised in that the on-off circuit includes：Power module, main circuit, parallel connection
Circuit and on-off circuit；
The main circuit includes first resistor (R1), first switch pipe (Q1), second switch pipe (Q2), first group of light emitting diode
(LED1；) and first group of diode (D1 LED3；D3) constitute；
The main circuit is sequentially connected in series the first switch pipe (Q1), described by the power end (Vcc) of the power module
First group of light emitting diode (LED1；LED3), the second switch pipe (Q2) and first group of diode (D1；D3) it is followed by
Ground, the two ends of the first resistor (R1) are connected in parallel on the input and output end of the first switch pipe (Q1)；
The parallel circuit includes second group of light emitting diode (LED2；LED4), second group of diode (D2；D4) switched with the 3rd
Manage (Q3) composition；
The parallel circuit is sequentially connected in series second group of light emitting diode since the output end of the first switch pipe (Q1)
(LED2；LED4), the 3rd switching tube (Q3) and second group of diode (D2；D4) it is grounded afterwards；
Wherein, first group of light emitting diode (LED1；) and second group of light emitting diode (LED2 LED3；LED4 number)
Amount and first group of diode (D1；D3 quantity) and second group of diode (D2；D4 quantity) is equal；
The on-off circuit includes first switch circuit, second switch circuit；
The first switch circuit controls being switched off and on for first switch pipe (Q1)；The second switch circuit controls institute
State being switched off and on for second switch pipe (Q2) and the 3rd switching tube (Q3).
2. vehicle signal light switch circuit according to claim 1, it is characterised in that the first switch pipe (Q1) is P-
MOSFET is managed, and the second switch pipe (Q2) and the 3rd switching tube (Q3) are managed for N-MOSFET；The first switch circuit
Including second resistance (R2), 3rd resistor (R3), the 4th resistance (R4), the 5th resistance (R5), the 6th resistance (R6), the first voltage stabilizing
Diode (Z1), the first triode (TR1) and the second triode (TR2) composition；
One end of the second resistance (R2) and the power end (Vcc) connection, the other end of the second resistance (R2) pass through
3rd resistor (R3) is connected with the negative pole of the voltage-regulator diode (Z1), and the positive pole of the voltage-regulator diode (Z1) passes through described
Four resistance (R4) are grounded afterwards；
The common port of the second resistance (R2) and 3rd resistor (R3) is connected with the G poles of the first switch pipe (Q1)；
The negative pole of the voltage-regulator diode (Z1) is connected with the colelctor electrode of first triode (TR1), first triode
(TR1) emitter stage is connected with the colelctor electrode of second triode (TR2), and the emitter stage of second triode (TR2) connects
Ground；
The base stage of first triode (TR1) is connected by the 5th resistance (R5) with the S poles of the second switch pipe (Q2)；Institute
The base stage for stating the second triode (TR2) is connected by the 6th resistance (R6) with the S poles of the 3rd switching tube (Q3).
3. vehicle signal light switch circuit according to claim 2, it is characterised in that the second switch circuit includes the
Seven resistance (R7), the 8th resistance (R8) and the 9th resistance (R9)；
One end of 7th resistance (R7) is connected with the power end (Vcc), and the other end of the 7th resistance (R7) passes through
9th resistance (R9) is grounded afterwards, the 7th resistance (R7) the other end by the 8th resistance (R8) afterwards with it is described
The G poles connection of second switch pipe (Q2), the G poles of the second switch pipe (Q2) and the G poles connection of the 3rd switching tube (Q3).
4. according to any described vehicle signal light switch circuit in claim 1-3, it is characterised in that described first group lights
Diode (LED1；LED3；LED5；LED7；) and second group of light emitting diode (LED2 LED9；LED4；LED6；LED8；LED10)
5 light emitting diodes all respectively connected for anode and cathode；First group of diode (D1；) and second group of diode (D2 D3；D4)
2 diodes all respectively connected for anode and cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720040468.2U CN206374648U (en) | 2017-01-13 | 2017-01-13 | Vehicle signal light switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720040468.2U CN206374648U (en) | 2017-01-13 | 2017-01-13 | Vehicle signal light switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206374648U true CN206374648U (en) | 2017-08-04 |
Family
ID=59404102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720040468.2U Active CN206374648U (en) | 2017-01-13 | 2017-01-13 | Vehicle signal light switch circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206374648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740440A (en) * | 2017-01-13 | 2017-05-31 | 上海小糸车灯有限公司 | Vehicle signal light switch circuit |
-
2017
- 2017-01-13 CN CN201720040468.2U patent/CN206374648U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740440A (en) * | 2017-01-13 | 2017-05-31 | 上海小糸车灯有限公司 | Vehicle signal light switch circuit |
| CN106740440B (en) * | 2017-01-13 | 2023-10-17 | 华域视觉科技(上海)有限公司 | Automobile signal lamp switching circuit |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201821 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee after: Hua Yu vision technology (Shanghai) Co., Ltd. Address before: 201821 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee before: Xiaoxi Car Lights Co., Ltd., Shanghai |