CN206510824U - It is a kind of to control turn signal to produce the device that sequential lights effect - Google Patents

Abstract

It is a kind of to control turn signal to produce the device that sequential lights effect, category Lighting control field.It includes input filter counnter attack connection module, reference voltage source module, n linear constant current source module, n groups LED strip is loaded, n SECO switch module, current compensation module, pulse signal generator is powered voltage stabilizing source module, pulse signal generator module, steering indicating light/double jump modulating signal enables detection circuit and LED open fault detection modules；It is that the sequential that the load of n groups LED strip can be achieved lights effect using a steering indicating light power supply supply lines V TURN by setting pulse signal generator module and SECO switch module between input filter counnter attack connection module and n linear constant current source module；By controlling the enable signal EN of steering indicating light/double jump modulating signal, can arbitrarily under 2 kinds of patterns of normal direction of rotation lamp and sequential steering indicating light switch operating.Greatly reduce device cost and turn to the manufacturing cost of lamp control system.

Description

It is a kind of to control turn signal to produce the device that sequential lights effect

Technical field

The utility model belongs to Lighting control field, more particularly to a kind of control of the vehicle signal car light of use LED/light source Device processed.

Background technology

Steering indicating light is to represent one of main device of automobile multidate information, be in Vehicular turn point out vehicle it is forward and backward, The important indicator lamp that left and right vehicle and pedestrian note.It is arranged on the front and back ends and vehicle body side of vehicle body, before automobile turning Or when turning, opened by driver, the people that can make positioned at vehicle periphery know the trend of automobile in advance, make and correctly sentencing It is disconnected.Guarantee is provided for traffic safety.

The turn signal of early stage generally by turn signal lamp, flasher (relay or single chip machine controlling circuit) and turns Constituted to signal controlled switch, rotation " stroboscopic " non-stop run, so as to realize the light flash of unilateral vehicle body steering indicating light.

With the popularization that LED (light emitting diode) is applied in car lighting lamp and signal lamp, the controlling party of steering indicating light Formula is also being constantly occurring change.

Originally the simple control mode gone out is lighted or closed together to LED steering indicating lights all using LED, its visual effect list One.

Authorized announcement date be on May 30th, 2001, Authorization Notice No. for CN2432089Y Chinese utility model patent in, A kind of " automobile-used dynamic steering and brake indicating lamp " is disclosed, it is made up of control circuit and indicator lamp, it controls circuit by electricity Source translation circuit, pulse generating circuit, sequential control circuit, steering driving switch circuit are constituted；Four of power converting circuit Input connects the left and right side marker light of former vehicle, brake indicating lamp and 12V power supplys, five of power converting circuit respectively Output end connects left and right side marker light, left and right brake indicating lamp and pulse generating circuit and sequential control circuit, arteries and veins respectively Circuit connection sequential control circuit occurs for punching, and the output end connection of sequential control circuit turns to driving switch circuit, turns to driving On-off circuit is connected with left and right side marker light.Indicator lamp has five kinds of display modes in the technical scheme, can be to turning to and braking Show simultaneously, dynamic is directly perceived, it is clear eye-catching.How much indicator lamp can be adjusted during fabrication as needed.Existing vehicle is not required to appoint What, which is changed, can just install the indicator lamp additional.

In the technical scheme, using series connection or multiple indicator lamps of series-parallel connection mode, in pulse generating circuit and sequential control Under the control of circuit processed, light or extinguish one by one successively, in overall display effect.It can make what is be connected with turning to driving switch Left turn indicator lamp (or right turn indicator lamp) to the left (or to the right) (section) is shinny by group, then reversely (section) is extinguished by group, makees Dynamic Announce, and realize combination, the multiplexing of brake lamp and steering indicating light.

Now, conventional continuous-flow type steering indicating light control mode is：All LED are all together in series, with a DC-DC liter BOOST circuits are pressed to power, by a switching tube in parallel by every LEDs, the high and low electricity for utilizing the I/O mouths of single-chip microcomputer to export Put down and carry out on or off these switching tubes, LED is changed into the effect that sequential is lighted, the flowing water form lighted by sequential makes to turn More highlighted to signal, be more easy to be seen.

It is apparent that this circuit cost powered with DC-DC modes is very high.

In addition, in the design specification of Europe system automobile manufacturing company, vehicle body master control system (hereinafter referred to as vehicle body) is to lamp Tool can all have the function of an electric current alarm：When the LED normal works of some functional lamp, circuit disappears on the power supply line The total current of consumption needs to be more than certain numerical value (example：100mA), vehicle body just will not false alarm sentence light fixture and damage.But for it is above-mentioned this Sequential steering indicating light is planted, when LED lights initial stage, due to only lighting the LED (such as there was only 2) of above several passages, LED initial stage The numerical value of the electric current normal current far from enough of consumption, can cause the false alarm of vehicle body.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of control turn signal generation sequential and lights effect Device, it uses SECO on-off circuit functional module to be connected with linear constant current circuit to reach effect that sequential is lighted, Compared with existing DC-DC circuit, the acquisition cost of control circuit part is low, and scalability is good, and control method is flexibly handy, easily Operation, can accomplish the current compensation at the initial stage that LED is lighted in sequential, prevent vehicle body false alarm, can be turned into individually designed The standard module of one sequential control circuit, directly extension are connected on the basis of original linear constant current circuit, accomplish normal The step switching of sequential steering is redirect to, will greatly simplify and upgrade to sequential steering indicating light on the basis of original normal direction of rotation lamp Design work.

The technical solution of the utility model is：A kind of dress for being used to control turn signal generation sequential to light effect is provided Put, including LED strip load more than two is set, every group of LED strip is joined by least two LED strips and constituted, by chronologically dividing Do not sequentially turn on or end these LED strips so that described each group LED strip is chronologically lighted, form each group LED strip chronologically point Bright overall flow light-out effect, makes turn signal more highlight, it is easy to be seen；It is characterized in that：

One input filter counnter attack connection module, a reference voltage source module, n linear constant current source module, n groups are set LED strip is loaded, n SECO switch module, a current compensation module, and a pulse signal generator is powered source of stable pressure mould Block, a pulse signal generator module, a steering indicating light/double jump modulating signal enables detection circuit and a LED open fault Detection module；N >=2 therein；

Wherein, the input of input filter counnter attack connection module connects with the steering indicating light power supply supply lines V-TURN in vehicle power supply Connect, the output end of input filter counnter attack connection module and the input of reference voltage source module, the input of current compensation module and Pulse signal generator power voltage stabilizing source module input connection；

The output end of reference voltage source module and the input of n linear constant current source module or the ginseng of linear constant current source module Examine voltage source part and correspond to respectively and be connected；

The output end of input filter counnter attack connection module and the input of reference voltage source module, are loaded with n groups LED strip Positive terminal correspondence is connected；

The negative pole end that the output end of n linear constant current source module is loaded with n groups LED strip is connected respectively；

Current compensation module and pulse signal generator are powered the output end of voltage stabilizing source module, with pulse signal generator mould The I/O input ports of block are connected respectively；

Normal direction of rotation/double jump lamp in full-vehicle control circuit enables signal EN, and diverted lamp/double jump modulating signal enables detection Circuit connection corresponding with the I/O input ports of pulse signal generator module；

N output control terminal of pulse signal generator module is linear permanent through n SECO switch module and n respectively Pliotron TRn base stage is connected respectively in stream source module；

The negative pole of n groups LED strip load, it is individual corresponding respectively with door input with n in LED open fault detection modules respectively Connection；An I/O input port of pulse signal generator module is connected to the output end of door.

Specifically, described input filter counnter attack connection module is by 1 TVS pipe TVS1, the electric capacity of 2 different size capacitances C2, C3 and an anti-reverse diode D1 composition；Described reference voltage source module by 1 voltage-stabiliser tube Z2,1 resistance R2,1 Electric capacity C4 and 1 NPN triode TR1 composition；Described linear constant current source module is by R3, R5,1 voltage-stabiliser tubes of 2 divider resistances Z1,1 electric capacity C5,2 current-limiting resistance R1, R4,1 feedback resistance R6,1 sampling resistor R7 and 1 pliotron TR2 group Into；Described LED strip load is divided into the strings of n=m/2 or 3 according to a string of 2 or 3 LEDs；The SECO switch module has N, each SECO on-off circuit is made up of 1 divider resistance R9,1 filter capacitor C10 and switch triode TR3；Institute The current compensation module stated is by 1 divider resistance R11,1 filter capacitor C11,1 switch triode TR4 and shunt resistance R8 Composition；Described pulse signal generator power voltage stabilizing source module by 1 low pressure voltage-stablizer U2 and 2 input filter capacitor C6, C7 and 2 output filter capacitor C9, C8 composition；Described pulse signal generator module, including 1 single-chip microcomputer or 18 Bit shift register, for producing clock signal；Described steering indicating light/double jump modulating signal enables detection circuit by 2 partial pressure electricity Hinder R23, R28,1 voltage-stabiliser tube Z5 and 1 filter capacitor C16 composition；Described LED open faults detection module is by n two poles Pipe D2, D3, D4, D5 constitute with door and 1 current-limiting resistance R37,1 pull-up resistor R36,1 PNP triodes TR11 and 1 Filter capacitor C20 is constituted.

Further, n described SECO switch module, current compensation module, pulse signal generator is powered surely Potential source module, pulse signal generator module and steering indicating light/double jump modulating signal enable detection circuit and constitute a single module Change standard component P, be used as the card module of sequential steering indicating light.

Further, in the blocking criteria part P current compensation module, pulse signal generator are powered source of stable pressure Module and steering indicating light/double jump modulating signal enable detection circuit and are separately formed a blocking criteria part Q.

Blocking criteria part Q described in it can carry out multiple cascades, in multiple cascades described in progress, by Q1 modules Be connected in Q2 module single-chip microcomputers one I/O mouthfuls of one I/O mouthfuls of middle single-chip microcomputer, the like；Or, by 8 in Q1 modules SDI pins in bit shift register are connected with the SDO pins in 8 bit shift registers in Q2 modules, the like.

The utility model additionally provides a kind of use said apparatus and produces the turn signal control electricity that sequential lights effect Road, it is characterized in that：

Described automobile steering lamp control circuit includes an input filter counnter attack connection module, a reference voltage source mould Block, n linear constant current source module, the load of n groups LED strip, n SECO switch module, a current compensation module, at one Sequential signal generator is powered voltage stabilizing source module, a pulse signal generator module, and a steering indicating light/double jump modulating signal enables inspection Slowdown monitoring circuit and a LED open fault detection module；N >=2 therein；

Described automobile steering lamp control circuit, between input filter counnter attack connection module and n linear constant current source module Pulse signal generator module and SECO switch module are set；

Described automobile steering lamp control circuit, between input filter counnter attack connection module and pulse signal generator module Current compensation module is set；

Described automobile steering lamp control circuit, each LED strip load negative pole end and pulse signal generator module it Between set LED open fault detection modules.

The utility model additionally provides a kind of use said apparatus and produces the turn signal that sequential lights effect, its feature It is：

The control circuit of the turn signal includes an input filter counnter attack connection module, a reference voltage source mould Block, n linear constant current source module, the load of n groups LED strip, n SECO switch module, a current compensation module, at one Sequential signal generator is powered voltage stabilizing source module, a pulse signal generator module, and a steering indicating light/double jump modulating signal enables inspection Slowdown monitoring circuit and a LED open fault detection module；N >=2 therein；

The control circuit of the turn signal, between input filter counnter attack connection module and n linear constant current source module Pulse signal generator module and SECO switch module are set；

The control circuit of the turn signal, between input filter counnter attack connection module and pulse signal generator module Current compensation module is set；

The control circuit of the turn signal, each LED strip load negative pole end and pulse signal generator module it Between set LED open fault detection modules.

Compared with the prior art, the utility model has the advantages that：

1. by setting pulse signal generator mould between input filter counnter attack connection module and n linear constant current source module Block and SECO switch module, by the control of pulse signal generator module, only need a steering indicating light power supply supply lines V- TURN is that the sequential that the load of n groups LED strip can be achieved lights effect；

2. normal direction of rotation/double jump lamp EN is enabled into signal access pulse signal generator module, by control steering indicating light/bis- The enable signal EN of modulating signal is jumped, arbitrarily can go out optical mode incision in 2 kinds of normal direction of rotation lamp and sequential steering indicating light and change jobs；

3. with single-chip microcomputer or the I/O ports of 8 bit shift register control sequentials, directly substituting originally needed discrete component The LED open fault breaking circuits built, greatly reduce device cost and turn to the manufacturing cost of lamp control system.

Brief description of the drawings

Fig. 1 is constituent system modules schematic diagram of the present utility model；

Fig. 2 is the circuit diagram of the utility model embodiment；

Fig. 3 is the circuit connecting relation schematic diagram of the anti-reverse module embodiments of the utility model input filter；

Fig. 4 is the circuit connecting relation signal of the utility model reference voltage source module and a linear constant current source module Figure；

Fig. 5 is the circuit connecting relation schematic diagram of the utility model LED strip load；

Fig. 6 is that the utility model road SECO switch module, current compensation module, pulse signal generator are powered voltage stabilizing Source module, pulse signal generator module and steering indicating light/double jump modulating signal enable the circuit connecting relation schematic diagram of detection circuit；

Fig. 7 is the circuit company of the utility model LED open faults detection module and linear constant current source module and LED strip load Connect relation schematic diagram；

Fig. 8 is the circuit connecting relation signal of the utility model the first blocking criteria part and the second blocking criteria part Figure.

1 is input filter counnter attack connection module in figure, and 2 be reference voltage source module, and 3-1~3-n is i-th of Linear CCS Module (i=1~n), 4-1~4-n is i-th group of LED strip load (i=1~n), and 5-1~5-n is the i-th tunnel SECO switching molding Block (i=1~n), 6 be current compensation module, and 7 be that pulse signal generator is powered voltage stabilizing source module, and 8 be pulse signal generator Module, 9 be that steering indicating light/double jump modulating signal enables detection circuit, and 10 be LED open fault detection modules, and P is the first modularization mark Quasi- part, Q is the second blocking criteria part.

Embodiment

The utility model is described further below in conjunction with the accompanying drawings.

In Fig. 1, the technical program provides a kind of device for controlling turn signal generation sequential to light effect, and it is at least Including following modules：

Functional module 1：Input filter counnter attack connection module (or being input filter reverse-connection preventing circuit)；

Functional module 2：Reference voltage source module (or being reference voltage source)；

Functional module 3：Linear constant current source module (or being linear constant current circuit), according to LED specific number m and 2 Or 3 a string of definition, whole circuit can be made up of n (n=m/2 or 3) linear constant current circuits；

Functional module 4：LED strip loads (i.e. steering indicating light LED/light source)；

Functional module 5：SECO switch module (or being SECO on-off circuit, n roads)；

Functional module 6：Current compensation module (or being current compensation circuit)；

Functional module 7：Pulse signal generator voltage stabilizing source module of powering (or is powered voltage stabilizing for pulse signal generator Source)；

Functional module 8：Pulse signal generator module (or being pulse signal generator)；

Functional module 9：Steering indicating light/double jump modulating signal enables detection circuit；

Functional module 10：LED open faults detection module (or detecting circuit for LED open faults).

Wherein, n described SECO switch module, current compensation module, pulse signal generator is powered source of stable pressure Module, pulse signal generator module and steering indicating light/double jump modulating signal enable detection circuit and constitute a single modularization mark Quasi- part P, as the card module of sequential steering indicating light, when not adding blocking criteria part P, remaining circuit turns according to normal Worked to the function mode of lamp；When inserting blocking criteria part P, by the enable signal of EN steering indicating lights/double jump modulating signal, Can arbitrarily under 2 kinds of patterns of normal direction of rotation lamp and sequential steering indicating light switch operating.

Further, in the blocking criteria part P current compensation module, pulse signal generator are powered source of stable pressure mould Block and steering indicating light/double jump modulating signal, which enable detection circuit, can also be separately formed into a blocking criteria part Q, the blocking criteria Part Q can carry out multiple cascades, and by Q1, Q2 ... ..., Qn is cascaded, and support more multigroup or passage LED strip to be formed to extend The sequential turning efficiency of overall steering indicating light.

In Fig. 2 or Fig. 3, described input filter counnter attack connection module is by 1 TVS pipe TVS1, the electricity of 2 different size capacitances Hold C2, C3 and anti-reverse diode D1 composition, because the figure is according to the drafting of national standard relevant regulations, the technology of this area Personnel, can unambiguously determine the annexation of the component support of each in figure, therefore will not be described in detail herein (similarly hereinafter).

In Fig. 2 or Fig. 4, described reference voltage source module is by 1 voltage-stabiliser tube Z2,1 resistance R2,1 electric capacity C4 and 1 NPN triode TR1 is constituted；Described linear constant current source module is by R3, R5,1 voltage-stabiliser tube Z1 of 2 divider resistances, 1 electric capacity C5,2 current-limiting resistances R1, R4,1 feedback resistance R6,1 sampling resistor R7 and 1 pliotron TR2 are constituted.

In Fig. 2 or Fig. 5, described LED strip load is divided into the strings of n=m/2 or 3 according to a string of 2 or 3 LEDs, and remaining is same Fig. 1.

In Fig. 2 or Fig. 6, the SECO switch module has n, and each SECO on-off circuit is by 1 partial pressure electricity Hinder R9,1 filter capacitor C10 and switch triode TR3 compositions.

Described current compensation module by 1 divider resistance R11,1 filter capacitor C11,1 switch triode TR4 and Shunt resistance R8 is constituted.

Described pulse signal generator powers voltage stabilizing source module by 1 low pressure voltage-stablizer U2 and 2 input filter capacitors C6, C7 and 2 output filter capacitor C9, C8 compositions；

Described pulse signal generator module, including 1 single-chip microcomputer or 18 bit shift register, during for producing Sequential signal；Described steering indicating light/double jump modulating signal enables detection circuit by 2 divider resistance R23, R28,1 voltage-stabiliser tube Z5 and 1 Individual filter capacitor C16 compositions.

In Fig. 2 or Fig. 7, described LED open faults detection module is by n diode D2, D3, D4, D5 constitute with door With 1 current-limiting resistance R37,1 pull-up resistor R36,1 PNP triode TR11 and 1 filter capacitor C20 composition.

In Fig. 2 or Fig. 8, the combined circuit part compounding design constituted of functional module 5+ functional modules 8 is marked into one Quasi- part Q, which is extended, to be used, i.e., when LED strip number increases, and can extend to complete more by the cascade to the standard component The demand that number LED sequential is lighted, scalability is good.

Or, also functional module 5+ functional module 6+ functional module 7+ functional module 8+ functional modules 9 can be combined composition Circuit part compounding design into a standard component P, as the card module of sequential steering indicating light, i.e., do not add this modularization mark During quasi- part P, remaining circuit still works according to the function mode of normal direction of rotation lamp.When inserting this blocking criteria part P, pass through EN The enable signal of steering indicating light/double jump modulating signal, arbitrarily can switch work under 2 kinds of patterns of normal direction of rotation lamp and sequential steering indicating light Make.

The course of work (or operation principle) summary of technical solutions of the utility model：

Steering indicating light power supply V-TURN is introduced into the anti-reverse part of the input filter of functional module 1, by the TVS pipe for switching to ground After TVS1 and filter capacitor C2, C3, counnter attack diode D1 positive pole is flowed into, electric current flows out from counnter attack diode D1 negative pole, warp Cross the reference voltage source of functional module 2；Current-limiting resistance R2 one end is connected with counnter attack diode D1 negative pole in reference voltage source, and one End is connected with voltage-stabiliser tube Z2 positive pole, and Z2 negative pole is connected to ground, and Z2 positive pole is connected with triode TR1 base stage simultaneously, and three Pole pipe TR1 base stage is also connected with 1 filter capacitor C4, and triode TR1 colelctor electrode is connected with D1 negative pole, triode TR1 Emitter stage be connected with the linear constant current circuit of functional module 3.

The emitter stage of triode TR1 in functional module 2 and the reference voltage source portion in the linear constant current circuit of functional module 3 Split-phase connects, and divider resistance R3 and R5, voltage-stabiliser tube Z1 and filter capacitor C5 constitute linear constant current in the linear constant current circuit of functional module 3 The reference source of stable pressure of circuit, voltage-stabiliser tube Z1 just extremely reference voltage point, is connected to amplifier U1A 3 pin+pole；Triode TR1's Emitter stage is connected to divider resistance R3 one end, and the R3 other end is connected with resistance R5 and voltage-stabiliser tube Z1.Amplifier U1A 4 pin electricity Source pin of powering is connected to current-limiting resistance R1 one end, and the R1 other end is connected to triode TR1 emitter stage, connects simultaneously One filter capacitor C1, filter capacitor C1 other end ground connection.Amplifier U1A 1 pin output end is by 1 current-limiting resistance R4 connection To pliotron TR2 base stage, pliotron TR2 emitter stage connection 1 flows resistance R7, the R7 other end are connected to Ground.The negative pole of LED strip in pliotron TR2 colelctor electrode linkage function module 4, amplifier U1A 2 pin-pole is by an electricity Resistance R6 is connected to the tie point in the middle of triode TR3 emitter stages and flows resistance R7.The LED that LED strip is loaded in functional module 4 is just Pole is connected to D1 negative pole formation LED+ to LED- loop, and foregoing circuit constitutes linear constant current circuit.

Counnter attack diode D1 negative pole and functional module 7 (pulse signal generator power source of stable pressure) are connected, D2 negative pole It is connected with voltage-stablizer U2 1 pin Vs, voltage-stablizer U2 2 pin and 2 input filter capacitors C6, C7 are connected, by C6, C7 other end Road to ground；Voltage-stablizer U2 3 pin Vo and 2 output filter capacitors C9, C8 are connected, and C9, C8 other end switch to ground；Voltage-stablizer U2 2 pin are connected to the ground.Voltage-stablizer U2 3 pin Vo are connected with functional module eight (pulse signal generator), are connected to single-chip microcomputer U3 1 pin VDD powers, and 1 filter capacitor C13 is connected by 1 pin VDD to ground, single-chip microcomputer U3 14 pin VSS are grounded, single-chip microcomputer I/O delivery outlets by n current-limiting resistance R16, R18, R21, R24 ... Rn is connected to functional module 5, and (SECO switch is electric Road).

So that the circuit of a string passage is explained as an example：Resistance R18 one end connection single-chip microcomputer U3 I/O mouths, the other end Divider resistance R9 one end is connected to, R9 and filter capacitor C10 are in parallel, R9 and the C10 other end are bypassed to ground, one end and switch Pipe TR3 base stage is connected, and switch transistor T R3 emitter stage is connected to ground, and switch transistor T R3 colelctor electrode is connected to linear constant current circuit Middle pliotron TR2 base stage.Some I/O mouthfuls of single-chip microcomputer U3 passes through current-limiting resistance R16 connection divider resistance R11, partial pressure Resistance R11 this one end is connected to switch transistor T R4 base stage, and the divider resistance R11 other end is connected to the ground, and C11 and R11 is simultaneously Connection.Switch transistor T R4 emitter stage and R11, C11 one end are connected in parallel to ground, switch transistor T R4 colelctor electrode connection shunt resistance together R8 one end, the R8 other end is connected to counnter attack diode D1 negative pole.

Normal direction of rotation/double jump lamp EN enables the partial pressure that signal passes through R23 and R28, and some I/O for being connected to single-chip microcomputer U3 is defeated Entrance (in figure by taking 6 pin RC4 as an example), divider resistance R28 one end is connected with the positive pole of R23 one end and voltage-stabiliser tube Z5, another End is connected to the ground with electric capacity C16 and voltage-stabiliser tube Z5 in parallel negative pole.

Functional module 4, the LED negative poles of each branch road LED strip of LED strip load connect the negative pole of 1 diode, with Exemplified by LED1- strings, LED1- is connected to D2 negative pole, D3, D4 ..., Dn by that analogy, the positive poles of all diodes is all simultaneously Formed and door after being linked togather, current-limiting resistance R37 one end, the R37 other end and triode are connected with the output of door TR11 base stage is connected, while being connected with filter capacitor C20 one end, the filter capacitor C20 other end is connected to the ground, triode TR11 colelctor electrode is connected to the ground, and triode TR11 emitter stage is connected to V1 reference voltages point by a pull-up resistor R36 (i.e. source of stable pressure U2 output point), TR11 emitter stage is connected to one I/O mouthfuls (8 pin RC2) of single-chip microcomputer simultaneously.

Using the advantage after the technical program：

(1) one blocking criteria part P of independent component, as the card module of sequential steering indicating light, i.e., does not add this mould During block standard component P, remaining circuit still works according to the function mode of normal direction of rotation lamp.When inserting this blocking criteria part P, , can be arbitrarily in the 2 kinds of pattern incisions of normal direction of rotation lamp and sequential steering indicating light by the enable signal of EN steering indicating lights/double jump modulating signal Change jobs.

(2) residual circuit in blocking criteria part P after remove function module 6, functional module 7 and functional module 9, can be with It is individually designed to carry out multiple cascades into a blocking criteria part Q, blocking criteria part Q, Q1, Q2 ... Qn are cascaded The LED strip of more multichannel is supported to make sequential turning efficiency to be extended to.

During cascade, the I/O that one I/O mouthfuls of single-chip microcomputer in Q1 modules can be connected in Q2 module single-chip microcomputers Mouthful, the like.Or, 8 bit shifts in the SDI pins and Q2 modules in 8 bit shift registers in Q1 modules can be deposited SDO pins in device are connected.

(3) switch transistor T R3 colelctor electrode is connected to pliotron in linear constant current circuit in SECO on-off circuit TR2 base stage, it is very thorough that this connected mode is closed when needing to close all LED, the slightly bright passes of LED is not had not dead Situation occur.

(4) there is the current compensation circuit of functional module 6, for the depot of Europe system, vehicle body can all have an electric current to light fixture The function of alarm：When the LED normal works of some functional lamp, the total current that circuit is consumed on the power supply line needs big In certain numerical value (example：100mA), vehicle body main control circuit just will not false alarm sentence light fixture and damage.But turned to for this sequential Lamp, when LED lights initial stage, due to only lighting the LED (such as there was only 2) of above several passages, the electric current of LED consumption initial stage The numerical value of normal current far from enough can cause vehicle body false alarm.In the design of the technical program, increase the mesh of functional module 6 , when LED lights initial stage and only lights several LEDs, exported by some I/O mouthfuls of control of the single-chip microcomputer U3 in functional module 8 Switch transistor T R4 be conducting to ground, electric current flowed there through from resistance R8 ground, compensation electric current produced by R8, to supply steering indicating light point The current differential that bright initial stage is not reached.When LED, which all lights rear LED consumption electric current, can meet vehicle body detection electric current, again End by single-chip microcomputer U3 I/O mouths switch transistor T R4, resistance R8 compensation current loop is passed through in cut-out.

(5) in functional module 10, in LED open faults detection circuit, diode D2, D3 ... ... Dn combination shape are passed through Cheng Yumen, connects the base stage of a triode TR11 after current-limiting resistance R37, and some I/O mouthfuls of single-chip microcomputer U3 passes through judgement The height of level at TR11 emitter stages, to judge whether LED has open fault.After single-chip microcomputer U3 detects open fault, lead to Other I/O mouths output high level for being connected to SECO on-off circuit are crossed, by all connection sequence switch pipe TR3, TR4 ... ... TRn are conducting to ground, so as to reach the effect for closing all LED and whole circuit.

Compared with conventional method, the technical program saves original LED open faults for needing discrete component to build and closed Deenergizing, is directly substituted with the I/O mouths of single-chip microcomputer control sequential, greatly reduces device cost.

(6) normal direction of rotation lamp, sequential steering indicating light flexible conversion function.

Because counnter attack diode D1 negative pole is additionally coupled to functional module 7, functional module 7 is connected to functional module 8 again, given Single-chip microcomputer or 8 bit shift registers are powered.Then A) the design circuit this steering indicating light power supply can power in only V-TURN Reaching the effect of sequential steering in the case of line (only need to carry out software merit rating to single-chip microcomputer, make all connection sequential controls of single-chip microcomputer The I/O mouths of on-off circuit processed begin to sequential export low level when electric on single-chip microcomputer one).B) the design circuit can also be only Reach the i.e. whole LED of effect of normal direction of rotation in the case of having this steering indicating light power supply supply lines of V-TURN while lighting (only Software merit rating need to be carried out to single-chip microcomputer, make the I/O mouths of all connection SECO on-off circuits of single-chip microcomputer electric on single-chip microcomputer one When begin to and meanwhile export low level).C) the design circuit can also have this steering indicating light power supply of V-TURN to power at the same time Line and EN this normal direction of rotation/double jump lamp are enabled under switching signal, sequential turn to and 2 kinds of effects of normal direction of rotation lamp in cut Change.

For example：EN signals are connected to single-chip microcomputer U3 I/O mouth RC4 after divider resistance R23 and R28 partial pressure, work as monolithic When the I/O mouthfuls of machine detects high level, even if the I/O mouths of all connection SECO on-off circuits carry out sequential export low level To reach effect that sequential is lighted；When the I/O mouthfuls of single-chip microcomputer detects low level or hanging signal, even if all connection sequential The I/O mouths of controlling switch circuit synchronize output low level to reach whole LED while the averaging effect lighted.This control Method is flexibly handy, easy to operate, while lighting control effect needed for being reached using the resource of software programming, greatly reduces original First need to reach the component of the hardware circuit of said function, reduce circuit cost.

The way of existing conventional continuous-flow type steering indicating light is：All LED are all together in series, boosted with a DC-DC BOOST circuits are powered, by a switching tube in parallel by every LEDs, using the low and high level of the I/O mouths output of single-chip microcomputer come These switching tubes of on or off make LED be changed into the effect that sequential is lighted.This circuit cost powered with DC-DC modes is very Height, and in the design of the technical program, use SECO on-off circuit functional module to be connected to reach with linear constant current circuit The effect that sequential is lighted, linear constant current circuit is compared to DC-DC circuit, and cost is low；Separately can be by seven+function of functional module in circuit The synthesis of eight+functional module of module five is designed to that a standard component Q is extended and used, i.e., when LED strip number increases, can pass through The demand that more number LED sequential are lighted is completed to the cascade extension of the standard component.Scalability is good.

The design of the technical program, by the I/O mouth linkage functions module six of functional module 8, can accomplish LED in sequential The current compensation at the initial stage lighted, prevents vehicle body false alarm, this be traditional sequential steering indicating light without function.And functional module 5+ The combined circuit part constituted of functional module 6+ functional module 7+ functional modules 8, can turn into a sequential control with individually designed The standard module of circuit processed, directly extension are connected on the basis of original linear constant current circuit, accomplish normal direction of rotation to sequential The step switching (upgrading to the design work of sequential steering indicating light on the basis of original normal direction of rotation lamp will greatly simplify) turned to, This is also not available for original traditional sequential rotating direction control method.

In above-mentioned technical scheme, U1A to U1D is integrated amplifier circuit chip, and U2 is circuit of three-terminal voltage-stabilizing integrated core Piece, U3 is single-chip microcomputer or eight bit register IC chip, as long as predetermined circuit function can be completed, spy is had no to its model Different requirement, those skilled in the art, completely can be based on reliable according to the inventive point of the technical solution of the utility model Property, service life, the number of pin needed and the combined factors such as purchase cost consider the selection of each IC chip. For example, integrated amplifier circuit chip optional TDA2030A, TDA2030A or LM1875；Optional most cheap 51 series of single-chip microcomputer or 81 series monolithic chips, or PIC AT89C2051, as long as pin disclosure satisfy that needs；As for three-terminal voltage-stabilizing collection Into circuit chip, the chip of the series of LM 7805 can be selected to complete predetermined voltage stabilizing function completely, due to currently marketed each The IC chip model for planting identical function is various, and manufacturer also provides the reference circuit and component parameters of various standards With table, thus said integrated circuit chip it is specifically chosen, using and physical circuit annexation no longer describe one by one herein.

As the application of the above-mentioned most basic technical scheme of the utility model, the utility model additionally provides a kind of using above-mentioned Method produces the automobile steering lamp control circuit that sequential lights effect, and its inventive point is：

Described automobile steering lamp control circuit includes an input filter counnter attack connection module, a reference voltage source mould Block, n linear constant current source module, the load of n groups LED strip, n SECO switch module, a current compensation module, at one Sequential signal generator is powered voltage stabilizing source module, a pulse signal generator module, and a steering indicating light/double jump modulating signal enables inspection Slowdown monitoring circuit and a LED open fault detection module；N >=2 therein；

Described automobile steering lamp control circuit, by input filter counnter attack connection module and n linear constant current source module Between pulse signal generator module and SECO switch module are set, be using a steering indicating light power supply supply lines V-TURN The sequential that the load of n groups LED strip can be achieved lights effect；

Described automobile steering lamp control circuit, enables signal by normal direction of rotation/double jump lamp EN and accesses clock signal Device module, can be arbitrarily in normal direction of rotation lamp and sequential steering indicating light by controlling the enable signal EN of steering indicating light/double jump modulating signal Switch operating under 2 kinds of patterns；

Described automobile steering lamp control circuit, between input filter counnter attack connection module and pulse signal generator module Current compensation module is set, the current differential that initial stage, LED strip load did not reached is lighted to supply steering indicating light；When LED strip load is complete , again can be by the I/O ends of pulse signal generator module portion consumes electric current and can meet vehicle body and detect electric current after lighting when Mouth ends current compensation module, cut-out compensation current loop；

Described automobile steering lamp control circuit, each LED strip load negative pole end and pulse signal generator module it Between set LED open fault detection modules, when clock signal generator module detect some LED strip load occur open fault Afterwards, high level is exported by other I/O mouths for being connected to pulse signal generator module, by all SECO switch modules The partially ON ground connection of reference voltage source, so as to reach the effect for closing all LED strip loads and whole circuit.

Further, described automobile steering lamp control circuit is only having by the control of pulse signal generator module In the case of a piece steering indicating light power supply supply lines V-TURN, it can realize and generation sequential is loaded by the n groups LED strip for constituting steering indicating light The effect lighted；

Further, described automobile steering lamp control circuit is only having by the control of pulse signal generator module In the case of a piece steering indicating light power supply supply lines V-TURN, the load of n groups LED strip can be realized all while the normal direction of rotation lighted Effect.

Further, described automobile steering lamp control circuit have at the same time a steering indicating light power supply supply lines V-TURN and In the case that normal direction of rotation/double jump lamp enables switching signal EN, by the control of pulse signal generator module, it can turn to Switched between the sequential turning efficiency of lamp and all light effect of normal direction of rotation lamp.

It can be seen that, using the automobile steering lamp control circuit of the technical program, compared with conventional method, save original needs The LED open fault breaking circuits that discrete component is built, are directly substituted with the I/O mouths of single-chip microcomputer control sequential, substantially reduced Device cost.

On this basis, the utility model additionally provides a kind of use above method and produces the automobile turn that sequential lights effect To lamp, its inventive point is：

The control circuit of the turn signal includes an input filter counnter attack connection module, a reference voltage source mould Block, n linear constant current source module, the load of n groups LED strip, n SECO switch module, a current compensation module, at one Sequential signal generator is powered voltage stabilizing source module, a pulse signal generator module, and a steering indicating light/double jump modulating signal enables inspection Slowdown monitoring circuit and a LED open fault detection module；N >=2 therein；

The control circuit of the turn signal, between input filter counnter attack connection module and n linear constant current source module Pulse signal generator module and SECO switch module are set；

The control circuit of the turn signal, between input filter counnter attack connection module and pulse signal generator module Current compensation module is set；

The control circuit of the turn signal, each LED strip load negative pole end and pulse signal generator module it Between set LED open fault detection modules.

As it was previously stated, the control circuit of the turn signal, by linear permanent in input filter counnter attack connection module and n Setting pulse signal generator module and SECO switch module between source module are flowed, using a steering indicating light power supply supply lines V-TURN is that the sequential that the load of n groups LED strip can be achieved lights effect.

Specifically, the control circuit of the turn signal, by the control of pulse signal generator module, only one In the case of root steering indicating light power supply supply lines V-TURN, it can realize and generation sequential point is loaded by the n groups LED strip for constituting steering indicating light Bright effect.

Specifically, the control circuit of the turn signal, by the control of pulse signal generator module, only one In the case of root steering indicating light power supply supply lines V-TURN, the load of n groups LED strip can be realized all while the normal direction of rotation effect lighted Really.

Specifically, the control circuit of the turn signal, have at the same time a steering indicating light power supply supply lines V-TURN and In the case that normal direction of rotation/double jump lamp enables switching signal EN, by the control of pulse signal generator module, it can turn to Switched between the sequential turning efficiency of lamp and all light effect of normal direction of rotation lamp.

It is apparent that LED automobile steering indicating light is after adopting the above technical scheme, only need to provide a steering in full-vehicle control circuit Lamp power supply supply lines V-TURN, you can conveniently realize the sequential turning efficiency of steering indicating light, if making again with normal direction of rotation/double jump lamp Can switching signal EN coordinated, you can easily steering indicating light sequential turning efficiency and normal direction of rotation lamp all light effect it Between switch over, and this control effect and bright light conversion and control, the extra control line without increasing advantageously reduce vehicle master The wiring quantity of control system, simplifies the control logic design of vehicle main control unit, is easy to vehicle main control unit and automobile The control function docking and control signal matching between lamp control circuit are turned to, car light manufacturing firm and vehicle is very easy to Technology between manufacturing firm coordinates, control circuit integrates docking and the realization of vehicle signal light control effect.

Due to when the utility model uses the SECO on-off circuit functional module to be connected with linear constant current circuit to reach The effect that sequence is lighted, compared with existing DC-DC circuit, the acquisition cost of control circuit part is low, and scalability is good, controlling party Method is flexibly handy, easy to operate, can accomplish the current compensation at the initial stage that LED is lighted in sequential, prevent vehicle body false alarm, can be with Individually designed to turn into the standard module of a sequential control circuit, directly extension is connected to the basis of original linear constant current circuit On, accomplish the step switching that normal direction of rotation is turned to sequential, will greatly simplify and upgrade on the basis of original normal direction of rotation lamp The design work of sequential steering indicating light and manufacturing cost.

The utility model can be widely used for turn signal and the design for controlling circuit and manufacture field.

Claims (7)

1. a kind of be used to control turn signal to produce the device that sequential lights effect, including sets LED strip more than two to bear Carry, every group of LED strip is joined by least two LED strips and constituted, by chronologically sequentially turning on or ending these LED strips respectively, make Obtain described each group LED strip chronologically to light, form the overall flow light-out effect that each group LED strip is chronologically lighted, make steering Signal is more highlighted, it is easy to be seen；It is characterized in that：

One input filter counnter attack connection module, a reference voltage source module, n linear constant current source module, n group LED strips are set Load, n SECO switch module, a current compensation module a, pulse signal generator is powered voltage stabilizing source module, one Individual pulse signal generator module, a steering indicating light/double jump modulating signal enables detection circuit and a LED open faults detection mould Block；N >=2 therein；

Wherein, the input of input filter counnter attack connection module is connected with the steering indicating light power supply supply lines V-TURN in vehicle power supply, The output end of input filter counnter attack connection module and the input of reference voltage source module, the input of current compensation module and sequential Signal generator power voltage stabilizing source module input connection；

The output end of reference voltage source module and the reference of the input or linear constant current source module of n linear constant current source module are electric Potential source part is corresponded to respectively to be connected；

The output end of input filter counnter attack connection module and the input of reference voltage source module, the positive pole loaded with n groups LED strip End correspondence connection；

The negative pole end that the output end of n linear constant current source module is loaded with n groups LED strip is connected respectively；

Current compensation module and pulse signal generator are powered the output end of voltage stabilizing source module, with pulse signal generator module I/O input ports are connected respectively；

Normal direction of rotation/double jump lamp in full-vehicle control circuit enables signal EN, and diverted lamp/double jump modulating signal enables detection circuit Connection corresponding with the I/O input ports of pulse signal generator module；

N output control terminal of pulse signal generator module is respectively through n SECO switch module and n Linear CCS Pliotron TRn base stage is connected respectively in module；

The negative pole of n groups LED strip load, respectively with the input of n in LED open fault detection modules and door is corresponding respectively connects Connect；An I/O input port of pulse signal generator module is connected to the output end of door.

2. control turn signal to produce the device that sequential lights effect according to being used for described in claim 1, it is characterized in that institute The input filter counnter attack connection module stated is by 1 TVS pipe TVS1, the electric capacity C2 of 2 different size capacitances, C3 and one anti-reverse two Pole pipe D1 is constituted；Described reference voltage source module is by 1 voltage-stabiliser tube Z2,1 resistance R2,1 electric capacity C4 and 1 pole of NPN tri- Pipe TR1 is constituted；Described linear constant current source module is by R3, R5,1 voltage-stabiliser tube Z1 of 2 divider resistances, 1 electric capacity C5,2 limits Leakage resistance R1, R4,1 feedback resistance R6,1 sampling resistor R7 and 1 pliotron TR2 are constituted；Described LED strip load Gone here and there according to 2 or 3 LEDs, a string of the n=m/2 or 3 that is divided into；The SECO switch module has n, each SECO On-off circuit is made up of 1 divider resistance R9,1 filter capacitor C10 and switch triode TR3；Described current compensation module By 1 divider resistance R11,1 filter capacitor C11,1 switch triode TR4 and shunt resistance R8 composition；Described sequential letter Number generator voltage stabilizing source module of powering is filtered by 1 low pressure voltage-stablizer U2 and 2 input filter capacitors C6, C7 and 2 outputs Electric capacity C9, C8 are constituted；Described pulse signal generator module, including 1 single-chip microcomputer or 18 bit shift register, are used for Produce clock signal；Described steering indicating light/double jump modulating signal enables detection circuit by 2 divider resistances R23, R28,1 voltage stabilizing Pipe Z5 and 1 filter capacitor C16 composition；Described LED open faults detection module is by n diode D2, D3, D4, D5 composition Constituted with door and 1 current-limiting resistance R37,1 pull-up resistor R36,1 PNP triode TR11 and 1 filter capacitor C20.

3. according to being used to control turn signal to produce the device that sequential lights effect described in claim 1, it is characterized in that described N SECO switch module, current compensation module, pulse signal generator powers voltage stabilizing source module, and clock signal occurs Device module and steering indicating light/double jump modulating signal enable detection circuit and constitute a single blocking criteria part P, are turned to as sequential The card module of lamp.

4. according to being used to control turn signal to produce the device that sequential lights effect described in claim 3, it is characterized in that described Current compensation module, pulse signal generator in blocking criteria part P are powered voltage stabilizing source module and steering indicating light/double jump modulating signal Enable detection circuit and be separately formed a blocking criteria part Q.

5. according to being used to control turn signal to produce the device that sequential lights effect described in claim 4, it is characterized in that described Blocking criteria part Q can carry out multiple cascades, in multiple cascades described in progress, by one of single-chip microcomputer in Q1 modules I/O mouthfuls be connected in Q2 module single-chip microcomputers one I/O mouthfuls, the like；Or, by 8 bit shift registers in Q1 modules SDI pins be connected with the SDO pins in 8 bit shift registers in Q2 modules, the like.

6. a kind of use claim 1 described device produces the automobile steering lamp control circuit that sequential lights effect, it is characterized in that：

Described automobile steering lamp control circuit includes an input filter counnter attack connection module, a reference voltage source module, n Linear constant current source module, the load of n groups LED strip, n SECO switch module, a current compensation module, a clock signal Generator is powered voltage stabilizing source module, a pulse signal generator module, and a steering indicating light/double jump modulating signal enables detection circuit With a LED open fault detection module；N >=2 therein；

Described automobile steering lamp control circuit, is set between input filter counnter attack connection module and n linear constant current source module Pulse signal generator module and SECO switch module；

Described automobile steering lamp control circuit, is set between input filter counnter attack connection module and pulse signal generator module Current compensation module；

Described automobile steering lamp control circuit, loads in each LED strip and is set between negative pole end and pulse signal generator module Put LED open fault detection modules.

7. a kind of use claim 1 described device produces the turn signal that sequential lights effect, it is characterized in that：

The control circuit of the turn signal includes an input filter counnter attack connection module, a reference voltage source module, n Linear constant current source module, the load of n groups LED strip, n SECO switch module, a current compensation module, a clock signal Generator is powered voltage stabilizing source module, a pulse signal generator module, and a steering indicating light/double jump modulating signal enables detection circuit With a LED open fault detection module；N >=2 therein；

The control circuit of the turn signal, is set between input filter counnter attack connection module and n linear constant current source module Pulse signal generator module and SECO switch module；

The control circuit of the turn signal, is set between input filter counnter attack connection module and pulse signal generator module Current compensation module；

The control circuit of the turn signal, loads in each LED strip and is set between negative pole end and pulse signal generator module Put LED open fault detection modules.