CN212022471U - Single-drive control far and near light circuit - Google Patents
Single-drive control far and near light circuit Download PDFInfo
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- CN212022471U CN212022471U CN202020615218.9U CN202020615218U CN212022471U CN 212022471 U CN212022471 U CN 212022471U CN 202020615218 U CN202020615218 U CN 202020615218U CN 212022471 U CN212022471 U CN 212022471U
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Abstract
The utility model discloses a single-drive control far and near light circuit, which relates to the field of car lamp circuit control and comprises a rectification filter circuit with anti-reverse connection function, a drive chip topology circuit connected with the rectification filter circuit, an output current control circuit connected with the drive chip topology circuit, a lamp bead control circuit connected with the output current control circuit and two groups of lamp bead circuits with the same structure; and the two groups of lamp bead circuits are connected with the lamp bead control circuit and the drive chip topology circuit in series. The utility model discloses a two sets of outputs of single drive control reduce a set of drive, have reduced manufacturing cost, and the electric current of lamp pearl output is two sets of parallelly connected, a set of independent control, and another group can change the output current increase and switch on to it is the distance light function to satisfy the passing light switching on the car light.
Description
Technical Field
The utility model relates to a car light circuit control field especially relates to a far and near light circuit of single drive control.
Background
The dipped headlight has low light irradiation angle, short distance and large irradiation range, and is mainly started when the dipped headlight runs on a road with better illumination conditions. When people go to some strange places with rare vehicles, in order to find out the road condition in front, the high beam illumination can be properly started, the use of the high beam and the low beam is switched to be controlled by a circuit, and the dual-drive control is generally adopted in the market, so that the economic cost is increased, a certain installation space is occupied, and a simpler control circuit is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a far and near light circuit of single drive control provides bigger more stable electric current for brushless motor, and can realize protection and detection to the circuit.
In order to achieve the above object, the utility model provides a following technical scheme:
a single-drive control far and near light circuit comprises a rectification filter circuit with an anti-reverse connection function, a drive chip topology circuit connected with the rectification filter circuit, an output current control circuit connected with the drive chip topology circuit, a lamp bead control circuit connected with the output current control circuit and two groups of lamp bead circuits with the same structure; and the two groups of lamp bead circuits are connected with the lamp bead control circuit and the drive chip topology circuit in series.
Further, the rectifying and filtering circuit comprises a diode VD1, a diode VD2 and a diode VD3, wherein the cathode of the diode VD2 is connected with the first end of a capacitor C1, the second end of the capacitor C1 is grounded, the cathode of the diode VD2 is connected with the cathode of a diode VD1, and the anode of the diode VD1 is connected with the anode of a diode VD 3.
Further, the constant current output of the driving chip topology circuit is realized by a minimum system adopting a TX6133 chip IC1, a 1 st pin of a TX6133 chip IC1 is grounded, a 2 nd pin is connected with a first end of a resistor R3 and a first end of a capacitor C2, a second end of the capacitor C2 is grounded, a 4 th pin of a TX6133 chip IC1 is connected with the anode of a diode VD4, and a 6 th pin of a TX6133 chip IC1 is connected with a 7 th pin and an 8 th pin and is grounded.
Further, the output current control circuit comprises a resistor R1, a first end of the resistor R1 is connected with a cathode of the diode VD3, a second end of the resistor R1 is connected with a gate of the MOS transistor Q1 and a first end of the resistor R2, a source of the MOS transistor Q1 is connected with a first end of the resistor RS3, a drain of the MOS transistor Q1 is connected with a second end of the resistor RS3 and a first end of the resistor RS2, and a second end of the resistor RS2 is connected with a 5 th pin of the TX6133 chip IC 1.
Further, the lamp bead control circuit comprises a resistor R4, a first end of the resistor R4 is connected with a first end of R1 and a negative electrode of a diode VD3, a second end of the resistor R4 is connected with a grid of an MOS tube Q2 and a first end of a resistor R5, a second end of the resistor R5 is connected with a source of the MOS tube Q2 and a first end of an induction coil L1, and a second end of the induction coil L1 is connected with a 4 th pin of a TX6133 chip IC1 and an anode of the diode VD 4.
Further, two groups of lamp bead circuits are connected in series, the lamp bead circuits comprise a light emitting diode L-LED1, the anode of the light emitting diode L-LED1 is connected with the anode of the light emitting diode L-LED3, the anode of the light emitting diode H-LED1 of the other group of lamp bead circuits, the anode of the light emitting diode H-LED3 of the other group of lamp bead circuits, the cathode of a diode DV4, the second end of a resistor R3, the first end of a capacitor C1, the cathode of a diode VD2 and the cathode of a diode VD1, the cathode of the light emitting diode L-LED1 is connected with the anode of a light emitting diode L-LED2, the anode of a light emitting diode L-LED4 and the cathode of a light emitting diode L-LED3, the cathode of the light emitting diode L-LED2 and the cathode of the light emitting diode L-LED4 are connected with the source of an MOS tube Q2, the second end of the resistor R5 and the first end of an induction coil L1, the anode of the light-emitting diode L-LED2 is connected with the anode of the light-emitting diode L-LED4, the cathode of the light-emitting diode LED4 is connected with the cathode of the light-emitting diode L-LED2, and the anode of the light-emitting diode L-LED4 is connected with the cathode of the light-emitting diode L-LED 3; the cathode of the LED H-LED2 and the cathode of the LED H-LED4 of the other lamp bead circuit are both connected with the drain electrode of the MOS tube Q2.
Compared with the prior art, the utility model adopts a single drive to control two groups of outputs, reduces one group of drive, reduces the production cost, the currents output by the lamp beads are connected in parallel, one group is controlled independently, and the other group can change the output current to increase and conduct, thereby meeting the requirement that the dipped beam on the car lamp is switched into the high beam function; the output current control circuit is controlled by the switch of the MOS tube Q1 to drive the output current to be increased, and two paths of outputs are output, namely when the high beam and the low beam are simultaneously lightened, the MOS tube Q1 plays a role in switching, controls two groups of lamp bead circuits to be connected in parallel, and plays a role in single-drive control of two paths of outputs to realize the functions of the high beam and the low beam.
Drawings
Fig. 1 is an overall circuit diagram of the present invention.
Fig. 2 is a circuit diagram of the rectifying and filtering circuit of the present invention.
Fig. 3 is a topological circuit diagram of the driving chip of the present invention.
Fig. 4 is a circuit diagram of the output current control circuit of the present invention.
Fig. 5 is the utility model discloses lamp pearl control circuit diagram.
Fig. 6 is the utility model discloses lamp pearl circuit diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a single-drive control far and near light circuit, which includes a rectifying and filtering circuit with anti-reverse connection function, a driving chip topology circuit connected to the rectifying and filtering circuit, an output current control circuit connected to the driving chip topology circuit, a lamp bead control circuit connected to the output current control circuit, and two sets of lamp bead circuits with the same structure; and the two groups of lamp bead circuits are connected with the lamp bead control circuit and the drive chip topology circuit in series.
Referring to fig. 2, the rectifying and filtering circuit has an anti-reverse connection function, determines the positive and negative poles of the power supply, and includes a diode VD1, a diode VD2, and a diode VD3, the negative pole of the diode VD2 is connected to the first end of a capacitor C1, the second end of the capacitor C1 is grounded, the negative pole of the diode VD2 is connected to the negative pole of the diode VD1, and the positive pole of the diode VD1 is connected to the positive pole of a diode VD 3.
Referring to fig. 3, a driving chip topology circuit outputs a constant current, a minimum system adopts a TX6133 chip IC1, a 1 st pin of a TX6133 chip IC1 is grounded, a 2 nd pin is connected with a first end of a resistor R3 and a first end of a capacitor C2, a second end of the capacitor C2 is grounded, a 4 th pin of the TX6133 chip IC1 is connected with an anode of a diode VD4, a 6 th pin of the TX6133 chip IC1 is connected with a 7 th pin and an 8 th pin and is grounded, the driving chip topology circuit is a TX6133 chip IC1 topology, and a BUCK circuit outputs a constant current, so that two groups of lamp bead circuits are connected in series and combination.
Referring to fig. 4, the output current control circuit includes a resistor R1, a first end of the resistor R1 is connected to a cathode of the diode VD3, a second end is connected to a gate of the MOS transistor Q1 and a first end of the resistor R2, a source of the MOS transistor Q1 is connected to a first end of the resistor RS3, a drain of the MOS transistor Q1 is connected to a second end of the resistor RS3 and a first end of the resistor RS2, and a second end of the resistor RS2 is connected to a 5 th pin of the TX6133 chip IC 1. The output current control circuit controls current output, when voltage is from JG-IN to a diode VD2 to a capacitor C1 to a resistor R3 to a capacitor C2 to a No. 2 pin of a TX6133 chip IC1, the TX6133 chip IC1 starts to work, the resistor RS2 and the resistor RS2RS1 are connected IN series, and the output current of the TX6133 chip IC1 is I-VCS/RCS. The internal point VCS is 0. 2V, the RCS resistance value is RS3+ RS2, the current of the lamp bead circuit is determined to be Iout ═ VCS/RS3+ RS2, when the voltage is from YG-IN to diode VD1 to capacitor C1 to resistor R3 to capacitor C2 to No. 2 pin of TX6133 chip IC1, TX6133 chip IC1 starts to work, and the resistor RS2 and the resistor RS2RS1 are connected IN series. The other path is from YG-IN to diode VD3 to resistor R1 to resistor R2 to MOS tube Q1, so that MOS tube Q1 is conducted, because MOS tube Q1 is connected with resistor RS3 IN parallel, after MOS tube Q1 is conducted, the internal resistance is 15 microohm, which is equivalent to the short circuit of resistor RS3, the resistance is reduced, and the resistance of RS2+ RS3 is reduced, the same constant current chip output current is the chip output current, I ═ VCS/RCS, the circuit reduces the RCS group value, increases the output current, and similarly determines that the current from an ELED-end to an L-end and from the ELED-end to an H-end is increased, so that the output of LED lamp beads with 2 groups of outputs is satisfied.
Referring to fig. 5, the lamp bead control circuit includes a resistor R4, a first end of the resistor R4 is connected to a first end of R1 and a cathode of a diode VD3, a second end of the resistor R4 is connected to a gate of the MOS transistor Q2 and a first end of a resistor R5, a second end of the resistor R5 is connected to a source of the MOS transistor Q2 and a first end of an inductor L1, and a second end of the inductor L1 is connected to a 4 th pin of the TX6133 chip IC1 and an anode of the diode VD 4. The lamp bead control circuit is a control switch of the two groups of lamp bead circuits, the other circuit is from YG-IN to diode VD3 to resistor R4 to R5 to MOS tube Q2, MOS tube Q2 is conducted, the switch control of MOS tube Q2 is that drive current flows through an ELED + end to an L-end, an ELED + end to an H-end and controls the ELED + end to the H-end (H-end to LED1, H-end to LED2, H-end to LED3 and H-end to LED4) IN the attached figure 5.
Referring to fig. 6, the two sets of lamp bead circuits are lamp bead LEDs and car light emitting sources, the two sets of lamp bead circuits are connected in series, each lamp bead circuit includes a light emitting diode L-LED1, an anode of the light emitting diode L-LED1 is connected with an anode of the light emitting diode L-LED3, an anode of the light emitting diode H-LED1, an anode of the light emitting diode H-LED3, a cathode of a diode DV4, a second end of a resistor R3, a first end of a capacitor C1, a cathode of a diode VD2, and a cathode of a diode VD1, a cathode of a light emitting diode L-LED1 is connected with an anode of the light emitting diode L-LED2, an anode of the light emitting diode L-LED4, and a cathode of the light emitting diode L-LED3, a cathode of the light emitting diode L-LED2 and a cathode of the light emitting diode L-LED4 are connected with a source of a MOS tube Q2, The second end of the resistor R5 is connected with the first end of the induction coil L1, the anode of the light-emitting diode L-LED2 is connected with the anode of the light-emitting diode L-LED4, the cathode of the light-emitting diode LED4 is connected with the cathode of the light-emitting diode L-LED2, and the anode of the light-emitting diode L-LED4 is connected with the cathode of the light-emitting diode L-LED 3; the cathode of the LED H-LED2 and the cathode of the LED H-LED4 of the other lamp bead circuit are both connected with the drain electrode of the MOS tube Q2.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A single-drive control far and near light circuit is characterized by comprising a rectifying and filtering circuit with an anti-reverse connection function, a drive chip topology circuit connected with the rectifying and filtering circuit, an output current control circuit connected with the drive chip topology circuit, a lamp bead control circuit connected with the output current control circuit and two groups of lamp bead circuits with the same structure; and the two groups of lamp bead circuits are connected with the lamp bead control circuit and the drive chip topology circuit in series.
2. The single-drive-control near-far light circuit as claimed in claim 1, wherein the rectifying and filtering circuit comprises a diode VD1, a diode VD2 and a diode VD3, the cathode of the diode VD2 is connected with the first end of a capacitor C1, the second end of the capacitor C1 is grounded, the cathode of the diode VD2 is connected with the cathode of the diode VD1, and the anode of the diode VD1 is connected with the anode of a diode VD 3.
3. The single-drive control far and near light circuit as claimed in claim 1, wherein the drive chip topology circuit outputs constant current, the minimum system adopts a TX6133 chip IC1, a 1 st pin of the TX6133 chip IC1 is grounded, a 2 nd pin is connected with a first end of a resistor R3 and a first end of a capacitor C2, a second end of the capacitor C2 is grounded, a 4 th pin of the TX6133 chip IC1 is connected with an anode of a diode VD4, a cathode of the diode VD1 is connected with a second end of the resistor R3, and a 6 th pin of a TX6133 chip IC1 is connected with a 7 th pin and an 8 th pin and grounded.
4. The single-drive-control near-far light circuit as claimed in claim 1, wherein the output current control circuit comprises a resistor R1, a first terminal of the resistor R1 is connected to a cathode of a diode VD3, a second terminal is connected to a gate of a MOS transistor Q1 and a first terminal of a resistor R2, a source of the MOS transistor Q1 is connected to a first terminal of a resistor RS3, a drain of the MOS transistor Q1 is connected to a second terminal of the resistor RS3 and a first terminal of a resistor RS2, and a second terminal of the resistor RS2 is connected to a 5 th pin of a TX6133 chip IC 1.
5. The single-drive-control far-near light circuit as claimed in claim 1, wherein the lamp bead control circuit comprises a resistor R4, a first end of the resistor R4 is connected with a first end of R1 and a cathode of a diode VD3, a second end of the resistor R4 is connected with a gate of a MOS transistor Q2 and a first end of a resistor R5, a second end of the resistor R5 is connected with a source of the MOS transistor Q2 and a first end of an induction coil L1, and a second end of the induction coil L1 is connected with a 4 th pin of a TX6133 chip IC1 and an anode of the diode VD 4.
6. The single-drive-control far-near light circuit as claimed in claim 1, wherein two sets of lamp bead circuits are connected in series, the lamp bead circuits comprise a light emitting diode L-LED1, the anode of the light emitting diode L-LED1 is connected with the anode of a light emitting diode L-LED3, the anode of a light emitting diode H-LED1 of another set of lamp bead circuits, the anode of a light emitting diode H-LED3 of another set of lamp bead circuits, the cathode of a diode DV4, the second end of a resistor R3, the first end of a capacitor C1, the cathode of a diode VD2, and the cathode of a diode VD1, the cathode of the light emitting diode L-LED1 is connected with the anode of a light emitting diode L-LED2, the anode of a light emitting diode L-LED4, the cathode of a light emitting diode L-LED3, the cathode of the light emitting diode L-LED2 and the cathode of the light emitting diode L-LED4 are connected with the source of an MOS tube Q2, The second end of the resistor R5 is connected with the first end of the induction coil L1, the anode of the light-emitting diode L-LED2 is connected with the anode of the light-emitting diode L-LED4, the cathode of the light-emitting diode LED4 is connected with the cathode of the light-emitting diode L-LED2, and the anode of the light-emitting diode L-LED4 is connected with the cathode of the light-emitting diode L-LED 3; the cathode of the LED H-LED2 and the cathode of the LED H-LED4 of the other lamp bead circuit are both connected with the drain electrode of the MOS tube Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020615218.9U CN212022471U (en) | 2020-04-22 | 2020-04-22 | Single-drive control far and near light circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020615218.9U CN212022471U (en) | 2020-04-22 | 2020-04-22 | Single-drive control far and near light circuit |
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| Publication Number | Publication Date |
|---|---|
| CN212022471U true CN212022471U (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020615218.9U Active CN212022471U (en) | 2020-04-22 | 2020-04-22 | Single-drive control far and near light circuit |
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|---|---|
| CN (1) | CN212022471U (en) |
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