CN218616437U - Two-lamp type automobile high beam and low beam control circuit - Google Patents
Two-lamp type automobile high beam and low beam control circuit Download PDFInfo
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- CN218616437U CN218616437U CN202223370729.7U CN202223370729U CN218616437U CN 218616437 U CN218616437 U CN 218616437U CN 202223370729 U CN202223370729 U CN 202223370729U CN 218616437 U CN218616437 U CN 218616437U
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Abstract
The utility model discloses a two lamp formula car far and near light lamp control circuit, include: the lamp driving circuit comprises a first current limiting module, a second current limiting module, a third current limiting module, a first lamp driving module, a first control switch module, a first voltage stabilizing module, a second lamp driving module, a second control switch module and a second voltage stabilizing module; the input end of the first current limiting module is connected to a high beam signal, the output end of the first current limiting module is connected to the control input end of the first lamp driving module, the driving end of the first lamp driving module is connected to the control end of the first control switch module, the output end of the first current limiting module is connected to the anode of the first group of automobile lamps, and the cathode of the first group of automobile lamps is grounded through the first control switch module. The two-lamp type automobile high-beam and low-beam control circuit solves the problem that two groups of signals do not drive two groups of automobile lamps in the prior art.
Description
Technical Field
The utility model relates to a lamp drive field, concretely relates to two lamp formula car far and near light lamp control circuit.
Background
In an automobile, a plurality of groups of automobile lamps are arranged, so that the automobile lamps can operate under regulation and control conveniently, and therefore, a lamp control circuit is needed.
In the prior art, a lamp control circuit includes: the lamp driver, output stabilization module and input stabilization module, the input of lamp driver is connected to the output of vehicle master controller, the output of vehicle master controller exports the control signal who starts the lamp, the input stabilization module is connected to the input of lamp driver, thereby make control signal can input lamp driver steadily, the output of lamp driver is connected to the output stabilization module, make the car light can be driven by stable input voltage, make the car light can work steadily, but the shortcoming that exists does:
in order to realize the dipped headlight and the high beam of the automobile, two groups of automobile lamps (namely a first group of automobile lamps and a second group of automobile lamps) are designed, and because the automobile master controller sends two groups of signals, one group of signals are dipped headlight signals, and the other group of signals are high beam signals, how to realize that the two groups of signals drive the two groups of automobile lamps is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a two-lamp formula car far and near light lamp control circuit solves among the prior art not the problem of realizing two sets of car lights of two sets of signal drive.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a two lamp formula car far and near light lamp control circuit, include: the lamp driving circuit comprises a first current limiting module, a second current limiting module, a third current limiting module, a first lamp driving module, a first control switch module, a first voltage stabilizing module, a second lamp driving module, a second control switch module and a second voltage stabilizing module; the input end of the first current limiting module is connected to a high beam signal, the output end of the first current limiting module is connected to the control input end of the first lamp driving module, the driving end of the first lamp driving module is connected to the control end of the first control switch module, the output end of the first current limiting module is connected to the anode of the first group of automobile lamps, the cathodes of the first group of automobile lamps are grounded through the first control switch module, and the first voltage stabilizing module is installed at the first group of automobile lamps; the input end of the second current limiting module is connected to a high beam signal, the input end of the third current limiting module is connected to a dipped headlight signal, the output end of the second current limiting module and the output end of the third current limiting module are both connected to the control input end of the second lamp driving module, the driving end of the second lamp driving module is connected to the control end of the second control switch module, the output end of the second current limiting module and the output end of the third current limiting module are both connected to the anode of a second group of automobile lamps, the cathode of the second group of automobile lamps is grounded through the second control switch module, and the second voltage stabilizing module is installed at the position of the second group of automobile lamps.
Preferably, the first control switch module and the second control switch module are both MOS transistors, gates of the MOS transistors are control ends of the first control switch module or the second control switch module, sources of the MOS transistors are used for being connected to cathodes of the first group of automobile lamps or cathodes of the second group of automobile lamps, and drains of the MOS transistors are used for being grounded.
Preferably, the drain of the MOS transistor is connected to one end of the resistor R4 and one end of the resistor R5, and the other end of the resistor R4 and the other end of the resistor R5 are both grounded.
Preferably, a third voltage stabilizing module is connected to both of the control input terminals of the first lamp driving module and the second lamp driving module.
Preferably, the first and second voltage stabilization modules each include: the capacitor C10, the inductor L1, the zener diode D8, the resistor R21, the capacitor C14 and the capacitor C15, the positive pole of the capacitor C10 is connected to the positive pole of the first group of automobile lamps, the negative pole of the capacitor C10 is connected to one end of the inductor L1 and the negative pole of the first group of automobile lamps, the other end of the inductor L1 is connected to the source electrode of the MOS tube, the negative pole of the zener diode D8 is connected to the positive pole of the first group of automobile lamps, the positive pole of the zener diode D8 is connected to the source electrode of the MOS tube, the positive pole of the first group of automobile lamps is connected to the positive pole of the capacitor C14, the negative pole of the capacitor C14 is connected to the positive pole of the capacitor C15 and the source electrode of the MOS tube, and the negative pole of the capacitor C15 is grounded.
Preferably, the third voltage stabilization module includes: the capacitor EC1 and the capacitor C1, the positive electrodes of the capacitor EC1 and the capacitor C1 are connected to the output end of the first current limiting module or the second current limiting module, and the negative electrodes of the capacitor EC1 and the capacitor C1 are grounded.
Preferably, the first and second lamp driving modules each include: resistance R1, electric capacity C4 and lamp driver chip, resistance R1 one end is first lamp driver module or second lamp driver module's control input end, and the resistance R1 other end is connected to electric capacity C4 positive pole, and electric capacity C4 negative pole ground connection, electric capacity C4 positive pole are connected to lamp driver chip's power end and pin of adjusting luminance, and lamp driver chip adopts the SL8100 chip.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) The first group of automobile lamps and the second group of automobile lamps are both on when only the high beam signal exists, and both the two groups of lamps are both on because strong light is needed when the high beam function is realized; when only the dipped headlight signal exists, only the second group of automobile lamps are turned on, so that the dipped headlight function is realized. Thereby realized that dipped headlight signal and high beam signal jointly control first group's car light and second group's car light, realized simultaneously that high beam signal can the simultaneous control first group's car light and second group's car light shine together.
2) Through setting up first current-limiting module, second current-limiting module and third current-limiting module, realized when only passing lamp signal, because there is the second current-limiting module, block the flow of passing lamp signal, consequently can not have and get into first lamp drive module behind the first current-limiting module of passing lamp signal flow direction, avoid passing lamp signal to influence first group car light operation, mutual influence has been avoided, thereby it can control first group car light and second group car light operation steadily to have guaranteed high beam signal and passing lamp signal.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a circuit diagram of a two-lamp automobile high beam and low beam control circuit.
Fig. 2 is a circuit diagram at the first lamp driving module or the second lamp driving module.
Detailed Description
In order to make the utility model discloses technical means, creation characteristic, achievement purpose and effect that realize are clearer and easily understand, and it is right to combine below attached drawing and detailed implementation mode the utility model discloses do further to explain:
as shown in fig. 1 and fig. 2, the utility model discloses a two-lamp type automobile high beam and low beam control circuit, include: the lamp driving circuit comprises a first current limiting module, a second current limiting module, a third current limiting module, a first lamp driving module, a first control switch module, a first voltage stabilizing module, a second lamp driving module, a second control switch module and a second voltage stabilizing module; the input end of the first current limiting module is connected to a high beam signal, the output end of the first current limiting module is connected to the control input end of the first lamp driving module, the driving end of the first lamp driving module is connected to the control end of the first control switch module, the output end of the first current limiting module is connected to the anode of the first group of automobile lamps, the cathodes of the first group of automobile lamps are grounded through the first control switch module, and the first voltage stabilizing module is installed at the first group of automobile lamps; the input end of the second current limiting module is connected to a high beam signal, the input end of the third current limiting module is connected to a dipped headlight signal, the output end of the second current limiting module and the output end of the third current limiting module are both connected to the control input end of the second lamp driving module, the driving end of the second lamp driving module is connected to the control end of the second control switch module, the output end of the second current limiting module and the output end of the third current limiting module are both connected to the anode of the second group of automobile lamps, the cathode of the second group of automobile lamps is grounded through the second control switch module, and the second voltage stabilizing module is installed at the second group of automobile lamps (the second group of automobile lamps are represented by LED1 and LED2 in figure 2).
The first current limiting module is a current limiting diode D1, the second current limiting module is a current limiting diode D2, and the third current limiting module is a current limiting diode D3.
The first control switch module and the second control switch module are MOS tube Q1, the grid of the MOS tube Q1 is the control end of the first control switch module or the second control switch module, the source electrode of the MOS tube Q1 is used for being connected to the cathode of the first group of automobile lamps or the cathode of the second group of automobile lamps, and the drain electrode of the MOS tube Q1 is used for being grounded. When MOS pipe Q1's grid has high level voltage output, MOS pipe Q1 switches on to guarantee that MOS pipe Q1 can switch on, guarantee that the first group car light and the second group car light at place can switch on dipped headlight signal or high beam signal, thereby realize the turn-on voltage, guarantee that first group car light and the second group car light can light.
The drain electrode of MOS pipe Q1 is connected to resistance R4 one end and resistance R5 one end, and the resistance R4 other end and the resistance R5 other end all ground connection. Resistance R4 and resistance R5 have the effect of partial pressure to guarantee that the voltage of loading on first group car light and second group car light can not be too high, avoid first group car light and second group car light place voltage too high, MOS pipe Q1's drain electrode is connected to lamp driver chip's CS foot simultaneously, thereby with check out test set direct mount on lamp driver chip's CS foot, conveniently detect inductance peak current.
And the control input end of the first lamp driving module or the second lamp driving module is connected with a third voltage stabilizing module. The voltage stabilization processing of the control input end of the first lamp driving module or the second lamp driving module is realized.
The first voltage stabilization module and the second voltage stabilization module both include: the capacitor C10, the inductance L1, zener diode D8, the resistance R21, electric capacity C14 and electric capacity C15, electric capacity C10 positive pole is connected to first group car light positive pole, electric capacity C10 negative pole is connected to inductance L1 one end and first group car light negative pole, the inductance L1 other end is connected to MOS pipe source electrode, zener diode D8 negative pole is connected to first group car light positive pole, zener diode D8 positive pole is connected to MOS pipe source electrode, first group car light positive pole is connected to electric capacity C14 positive pole, electric capacity C14 negative pole is connected to electric capacity C15 positive pole and MOS pipe source electrode, electric capacity C15 negative pole ground connection.
The third voltage stabilization module includes: the capacitor EC1 and the capacitor C1, the positive electrodes of the capacitor EC1 and the capacitor C1 are connected to the output end of the first current limiting module or the second current limiting module, and the negative electrodes of the capacitor EC1 and the capacitor C1 are grounded.
The first lamp driving module and the second lamp driving module each include: resistance R1, electric capacity C4 and lamp driver chip U1, resistance R1 one end is first lamp driver module or second lamp driver module's control input end, and the resistance R1 other end is connected to electric capacity C4 anodal, electric capacity C4 negative pole ground connection, and electric capacity C4 anodal power end and the pin of adjusting luminance of being connected to lamp driver chip U1, and lamp driver chip U1 adopts the SL8100 chip.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (7)
1. The utility model provides a two lamp formula car far and near light control circuit which characterized in that includes: the lamp driving circuit comprises a first current limiting module, a second current limiting module, a third current limiting module, a first lamp driving module, a first control switch module, a first voltage stabilizing module, a second lamp driving module, a second control switch module and a second voltage stabilizing module;
the input end of the first current limiting module is connected to a high beam signal, the output end of the first current limiting module is connected to the control input end of the first lamp driving module, the driving end of the first lamp driving module is connected to the control end of the first control switch module, the output end of the first current limiting module is connected to the anode of the first group of automobile lamps, the cathodes of the first group of automobile lamps are grounded through the first control switch module, and the first voltage stabilizing module is installed at the first group of automobile lamps;
the input end of the second current limiting module is connected to a high beam signal, the input end of the third current limiting module is connected to a dipped headlight signal, the output end of the second current limiting module and the output end of the third current limiting module are both connected to the control input end of the second lamp driving module, the driving end of the second lamp driving module is connected to the control end of the second control switch module, the output end of the second current limiting module and the output end of the third current limiting module are both connected to the anode of the second group of automobile lamps, the cathode of the second group of automobile lamps is grounded through the second control switch module, and the second voltage stabilizing module is installed at the position of the second group of automobile lamps.
2. The two-lamp type automobile high beam and low beam control circuit according to claim 1, wherein the first control switch module and the second control switch module are both MOS transistors, a gate of the MOS transistor is a control terminal of the first control switch module or the second control switch module, a source of the MOS transistor is used for connecting to a cathode of the first group of automobile lamps or a cathode of the second group of automobile lamps, and a drain of the MOS transistor is used for grounding.
3. The control circuit of claim 2, wherein the drain of the MOS transistor is connected to one end of a resistor R4 and one end of a resistor R5, and the other end of the resistor R4 and the other end of the resistor R5 are both grounded.
4. The control circuit of claim 3, wherein the control input terminal of the first lamp driving module or the second lamp driving module is connected to a third voltage stabilizing module.
5. The control circuit of claim 4, wherein the first voltage-stabilizing module and the second voltage-stabilizing module each comprise: the capacitor C10, the inductance L1, zener diode D8, the resistance R21, electric capacity C14 and electric capacity C15, electric capacity C10 positive pole is connected to first group car light positive pole, electric capacity C10 negative pole is connected to inductance L1 one end and first group car light negative pole, the inductance L1 other end is connected to MOS pipe source electrode, zener diode D8 negative pole is connected to first group car light positive pole, zener diode D8 positive pole is connected to MOS pipe source electrode, first group car light positive pole is connected to electric capacity C14 positive pole, electric capacity C14 negative pole is connected to electric capacity C15 positive pole and MOS pipe source electrode, electric capacity C15 negative pole ground connection.
6. The control circuit of claim 5, wherein the third voltage-stabilizing module comprises: the positive electrodes of the capacitor EC1 and the capacitor C1 are connected to the output end of the first current limiting module or the second current limiting module, and the negative electrodes of the capacitor EC1 and the capacitor C1 are grounded.
7. The control circuit of claim 6, wherein the first lamp driving module and the second lamp driving module each comprise: resistance R1, electric capacity C4 and lamp driver chip, resistance R1 one end is first lamp driver module or second lamp driver module's control input end, and the resistance R1 other end is connected to electric capacity C4 anodal, and electric capacity C4 negative pole ground connection, electric capacity C4 anodal power end and the pin of adjusting luminance of being connected to lamp driver chip, and lamp driver chip adopts the SL8100 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223370729.7U CN218616437U (en) | 2022-12-15 | 2022-12-15 | Two-lamp type automobile high beam and low beam control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223370729.7U CN218616437U (en) | 2022-12-15 | 2022-12-15 | Two-lamp type automobile high beam and low beam control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN218616437U true CN218616437U (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223370729.7U Active CN218616437U (en) | 2022-12-15 | 2022-12-15 | Two-lamp type automobile high beam and low beam control circuit |
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| Country | Link |
|---|---|
| CN (1) | CN218616437U (en) |
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- 2022-12-15 CN CN202223370729.7U patent/CN218616437U/en active Active
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