CN214675777U - Automobile running water lamp based on operational amplifier - Google Patents
Automobile running water lamp based on operational amplifier Download PDFInfo
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- CN214675777U CN214675777U CN202023081180.0U CN202023081180U CN214675777U CN 214675777 U CN214675777 U CN 214675777U CN 202023081180 U CN202023081180 U CN 202023081180U CN 214675777 U CN214675777 U CN 214675777U
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Abstract
The utility model provides an automobile flowing water lamp based on fortune is put, include: the LED lamp comprises a plurality of LED lamp groups, a power supply input circuit, a plurality of operational amplifier circuits and a switch circuit; the output end of the power supply input circuit is connected with the input end of the operational amplifier circuit and the first end of the LED lamp bank; the output end of the operational amplifier circuit is connected with the input end of the switch circuit and the input end of the other operational amplifier circuit; the output end of the operational amplifier circuit is connected with the second end of the LED lamp bank; the operational amplifier circuit comprises charging elements, the charging time of the charging elements in each operational amplifier circuit is different, when the charging elements reach the charging time, the switching circuit connected with the operational amplifier circuit is conducted, and the switching circuit drives the LED lamp set. The utility model discloses an automobile flowing water lamp need not to adopt MCU or IC to drive the LED lamp, simple structure, and the cost is lower.
Description
Technical Field
The utility model belongs to the technical field of the automotive lighting, concretely relates to car flowing water lamp based on fortune is put.
Background
Automobile lighting plays an important role in automobile driving safety, and the traditional automobile lighting lamp is single in lighting mode and not attractive enough in function. In recent years, some high-end automobile manufacturers are dedicated to developing dynamic water-flowing lamps in order to meet the individual pursuit of the market for automobile illuminating lamps and better help passers-by and successors to acquire the movement information of automobiles.
In the prior art, the common lighting modes of the automobile running water lamp are mainly divided into the following two types: the constant current IC with different functions is programmed and controlled by the MCU, and the technology has the advantages of high control precision and high cost, and the MCU has complex peripheral circuits and is easy to cause the problem of failure of a burning program; the other one is realized by pure hardware such as a 555 timer, a shift register, an IC and the like, and the technology has the advantages of avoiding software burning, and having low cost and the defects of large influence of temperature on precision, incapability of independently adjusting the flowing time interval of each LED group, complex peripheral circuits and the like. The two modes have the following common defects: the IO port of the MCU or the IC is limited, and the driven LED lamp set is limited.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect, the utility model provides a car flowing water lamp based on fortune is put need not to adopt MCU or IC to drive the LED lamp, simple structure, and the cost is lower.
In order to solve the above problem, the utility model discloses realize according to following technical scheme:
an operational amplifier-based automotive running light, comprising: the LED lamp comprises a plurality of LED lamp groups, a power supply input circuit, a plurality of operational amplifier circuits and a switch circuit;
the output end of the power supply input circuit is connected with the input end of the operational amplifier circuit and the first end of the LED lamp bank;
the output end of the operational amplifier circuit is connected with the input end of the switch circuit and the input end of the other operational amplifier circuit;
the output end of the operational amplifier circuit is connected with the second end of the LED lamp bank;
the operational amplifier circuit comprises charging elements, the charging time of the charging elements in each operational amplifier circuit is different, when the charging elements reach the charging time, the switching circuit connected with the operational amplifier circuit is conducted, and the switching circuit drives the LED lamp set.
As a further improvement of the present invention, the present invention further comprises: and the input end of the filtering anti-reverse circuit is connected with the output end of the power input circuit, and the output end of the filtering anti-reverse circuit is connected with the input end of the operational amplifier circuit and the first end of the LED lamp bank.
As a further improvement of the utility model, the filtering anti-reverse circuit comprises; the circuit comprises a first capacitor, a second capacitor, a third capacitor, a first resistor, a bidirectional transient suppression diode and a diode;
the output end of the power input circuit is grounded through the first capacitor and the second capacitor, the output end of the power input circuit is grounded through the first resistor, the output end of the power input circuit is grounded through the bidirectional transient suppression diode, the output end of the power input circuit is grounded through the forward conducted diode and the third capacitor, and the cathode of the diode is connected with the input end of the operational amplifier circuit and the first end of the LED lamp bank.
As a further improvement of the present invention, the present invention further comprises: and the input end of the voltage stabilizing circuit is connected with the output end of the filtering anti-reflection circuit, and the output end of the voltage stabilizing circuit is connected with the input end of the operational amplifier circuit.
As a further improvement of the present invention, the voltage stabilizing circuit comprises; the second resistor, the voltage stabilizing diode and the first triode;
the collector of the first triode is connected with the output end of the voltage stabilizing circuit, the collector of the first triode is connected with the base of the first triode through the second resistor, the base of the first triode is grounded through the reversely conducted voltage stabilizing diode, and the emitter of the first triode is connected with the input end of the operational amplifier circuit.
As a further improvement of the present invention, the operational amplifier circuit includes: the third resistor, the fourth resistor, the fifth resistor, the sixth resistor, the fourth capacitor and the operational amplifier;
the output end of the voltage stabilizing circuit is grounded through the third resistor and the fourth resistor, the output end of the voltage stabilizing circuit is grounded through the third resistor and the fourth capacitor, the output end of the voltage stabilizing circuit is grounded through the fifth resistor and the sixth resistor, and the output end of the voltage stabilizing circuit is connected with the first end of the operational amplifier through the third resistor; the output end of the voltage stabilizing circuit is connected with the second end of the operational amplifier through the fifth resistor, and the output end of the voltage stabilizing circuit is connected with the third end of the operational amplifier;
the fourth end of the operational amplifier is grounded, and the fifth end of the operational amplifier is connected with the input end of the other operational amplifier circuit and the second end of the LED lamp bank.
As a further improvement of the present invention, the switching circuit includes: the fourth resistor, the eighth resistor, the ninth resistor and the second triode;
the base electrode of the second triode is connected with the output end of the operational amplifier circuit through the seventh resistor, the base electrode of the second triode is grounded through the eighth resistor, the emitting electrode of the second triode is grounded through the ninth resistor, and the collecting electrode of the second triode is connected with the second end of the LED lamp bank.
As a further improvement of the utility model, the LED lamp group comprises a plurality of LED lamp beads connected in series, and the LED lamp beads adopt a common anode connection method.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an fortune is put the circuit, and every fortune is put the circuit and is all included the charging element that the charging time is inequality, and when the charging element arrived the charging time, fortune was put the circuit and is communicated with switch circuit, and switch circuit drive LED banks utilizes the difference of the required charging time of different charging elements for the time of lighting of different LED banks is different, thereby realizes the effect of flowing water lamp, adopts fortune to put circuit and switch circuit and controls LED banks, and circuit structure is simple, need not to adopt MCU or IC control, does not relate to MCU program burning record, has greatly reduced production processes, is convenient for follow-up maintenance; because MCU or IC are not adopted for control, the problem that an I/O port of the MCU or IC is not enough can not occur, the increased number of the LED lamp groups can be realized only by adding an operational amplifier circuit and a switch circuit without considering the increase of IO expansion ports and peripheral circuits of the MCU and the drive IC, and the operability is higher.
Drawings
The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:
FIG. 1 is a circuit diagram of a water lamp of an automobile according to an embodiment;
FIG. 2 is a schematic diagram of the filtering anti-reflection circuit according to the first embodiment;
FIG. 3 is a schematic diagram of a voltage regulator circuit according to an embodiment;
FIG. 4 is a schematic diagram of the operational amplifier circuit according to one embodiment;
fig. 5 is a schematic diagram of the connection between the operational amplifier circuits according to one embodiment;
FIG. 6 is a schematic diagram of the switch circuit according to one embodiment;
FIG. 7 is a schematic view of an LED light bank according to an embodiment;
fig. 8 is a schematic view of the water flowing effect of the automobile water flowing lamp according to the first embodiment.
Description of the labeling: 1. an LED lamp group; 2. a power input circuit; 3. an operational amplifier circuit; 4. a switching circuit; 5. a filtering anti-reflection circuit; 6. a voltage stabilizing circuit.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example one
The embodiment discloses car flowing water lamp based on fortune is put includes: the LED lamp comprises a plurality of LED lamp groups 1, a power input circuit 2, a plurality of operational amplifier circuits 3 and a switch circuit 4; the output end of the power input circuit 2 is connected with the input end of the operational amplifier circuit 3 and the first end of the LED lamp group 1; the output end of the operational amplifier circuit 3 is connected with the input end of the switch circuit 4 and the input end of the other operational amplifier circuit 3; the output end of the operational amplifier circuit 3 is connected with the second end of the LED lamp group 1; the operational amplifier circuits 3 comprise charging elements, the charging time of the charging elements in each operational amplifier circuit 3 is different, when the charging elements reach the charging time, the switch circuits 4 connected with the operational amplifier circuits 3l are switched on, and the switch circuits 4 drive the LED lamp group 1.
In order to enable the running water lamp of this embodiment to have better stability, the embodiment is further provided with a filtering anti-reflection circuit 5, an input end of the filtering anti-reflection circuit 5 is connected with an output end of the power input circuit 2, and an output end of the filtering anti-reflection circuit 5 is connected with an input end of the operational amplifier circuit 3 and a first end of the LED lamp group 1.
Specifically, the filtering anti-reverse circuit 5 includes; a first capacitor C1, a second capacitor C2, a third capacitor C3, a first resistor R1, a bidirectional transient suppression diode TVS1 and a diode D1; the output end of the power input circuit 2 is grounded through a first capacitor C1 and a second capacitor C2, the output end of the power input circuit 2 is grounded through a first resistor R1, the output end of the power input circuit 2 is grounded through a bidirectional transient suppression diode TVS1, the output end of the power input circuit 2 is grounded through a forward-conducted diode D1 and a third capacitor C3, and the cathode of a diode D1 is connected with the input end of the operational amplifier circuit 3 and the first end of the LED lamp group 1; the first capacitor C1 and the second capacitor C2 are formed by capacitors with small capacitance values, the first resistor R1 is a leakage resistor, the diode D1 is an anti-reverse diode, the third capacitor C3 is a capacitor with a large capacitance value, and the filtering anti-reverse circuit 5 can provide more stable power input for subsequent circuits.
In addition, this embodiment further includes: and the input end of the voltage stabilizing circuit 6 is connected with the output end of the filtering anti-reflection circuit 5, and the output end of the voltage stabilizing circuit 6 is connected with the input end of the operational amplifier circuit 3.
Specifically, the voltage stabilizing circuit 6 includes; the second resistor R2, the voltage stabilizing diode Z1 and the first triode TR 1; the collector of the first triode TR1 is connected with the output end of the voltage stabilizing circuit 6, the collector of the first triode TR1 is connected with the base of the first triode TR1 through a second resistor R2, the base of the first triode TR1 is grounded through a reverse conducting zener diode Z1, and the emitter of the first triode TR1 is connected with the input end of the operational amplifier circuit 3; when the power is input, the voltage stabilizing diode Z1 stabilizes the base voltage of the first transistor TR1 to 5.6V, and at this time, the emitter of the first transistor TR1 is at a low level, so that the first transistor TR1 is turned on to provide a stable voltage of 4.9V for the stable operation of the subsequent operational amplifier circuit 3.
In the above embodiment, the charging element is a capacitor, and the operational amplifier circuit 3 includes: a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a fourth capacitor C4 and an operational amplifier U1; the output end of the voltage stabilizing circuit 6 is grounded through a third resistor R3 and a fourth resistor R4, the output end of the voltage stabilizing circuit 6 is grounded through a third resistor R3 and a fourth capacitor C4, the output end of the voltage stabilizing circuit 6 is grounded through a fifth resistor R5 and a sixth resistor R6, and the output end of the voltage stabilizing circuit 6 is connected with the first end of an operational amplifier U1 through a third resistor R3; the output end of the voltage stabilizing circuit 6 is connected with the second end of the operational amplifier U1 through a fifth resistor R6, and the output end of the voltage stabilizing circuit 6 is connected with the third end of the operational amplifier U1; the fourth end of the operational amplifier U1 is grounded, and the fifth end of the operational amplifier U1 is connected to the input end of another operational amplifier circuit 3 and the second end of the LED lamp set 1.
In the above embodiment, the switch circuit 4 includes: a seventh resistor R7, an eighth resistor R8, a ninth resistor R9 and a second transistor TR 2; the base of the second triode TR2 is connected with the output end of the operational amplifier circuit 3 through a seventh resistor R7, the base of the second triode TR2 is grounded through an eighth resistor R8, the emitter of the second triode TR2 is grounded through a ninth resistor R9, and the collector of the second triode TR2 is connected with the second end of the LED lamp set 1.
In the present embodiment, four sets of operational amplifier circuits 3 and four sets of switch circuits 4 are used, and the components in the four sets of operational amplifier circuits 3 and the four sets of switch circuits 4 are the same in composition, but the parameters between the components are not necessarily the same, and although the present embodiment has been described using the same names and reference numerals for each operational amplifier circuit 3, it should be noted that the present embodiment describes only the type of the component itself.
Preferably, the LED lamp set 1 includes a plurality of LED lamp beads connected in series, and the plurality of LED lamp beads are connected in a common anode manner, and it should be noted that in this embodiment, the plurality of LED lamp beads may also be connected in series and parallel, or in series and parallel with the LED lamp set 1.
The present embodiment is further explained with reference to the following implementation principles:
according to the requirement of actual water lamp time, in the first operational amplifier circuit 3, the resistance values of the third resistor R3, the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6 and the capacitance value of the fourth capacitor C4 are adjusted, so that during normal operation, the voltage of the first end of the operational amplifier U1 is always higher than that of the second end, and when the charging and discharging of the fourth capacitor C4 reach a stable set voltage, the fifth end of the operational amplifier U1 outputs a high level, the base voltage of the second triode TR2 is higher than the emitter voltage, the second diode TR2 is conducted, since the collector of the second triode TR2 is connected with the cathode of the LED lamp set 1, when the second triode TR2 is conducted, the first LED lamp set 1 is grounded through the eighth resistor R8, and the first LED lamp set 1 is turned on. Similarly, the remaining three operational amplifier circuits 3 may also adjust the resistance values of the third resistor R3, the fourth resistor R4, the fifth resistor R5, and the sixth resistor R6, and the capacitance value of the fourth capacitor C4, so as to control the time-sequential lighting time of the second group of LED lamps 1, with the effect as shown in fig. 7.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (8)
1. An automobile running water lamp based on operational amplifier is characterized by comprising: the LED lamp comprises a plurality of LED lamp groups, a power supply input circuit, a plurality of operational amplifier circuits and a switch circuit;
the output end of the power supply input circuit is connected with the input end of the operational amplifier circuit and the first end of the LED lamp bank;
the output end of the operational amplifier circuit is connected with the input end of the switch circuit and the input end of the other operational amplifier circuit;
the output end of the operational amplifier circuit is connected with the second end of the LED lamp bank;
the operational amplifier circuit comprises charging elements, the charging time of the charging elements in each operational amplifier circuit is different, when the charging elements reach the charging time, the switching circuit connected with the operational amplifier circuit is conducted, and the switching circuit drives the LED lamp set.
2. The automotive running water lamp according to claim 1, further comprising: and the input end of the filtering anti-reverse circuit is connected with the output end of the power input circuit, and the output end of the filtering anti-reverse circuit is connected with the input end of the operational amplifier circuit and the first end of the LED lamp bank.
3. The automotive running water lamp according to claim 2, wherein the filtering anti-reflection circuit comprises; the circuit comprises a first capacitor, a second capacitor, a third capacitor, a first resistor, a bidirectional transient suppression diode and a diode;
the output end of the power input circuit is grounded through the first capacitor and the second capacitor, the output end of the power input circuit is grounded through the first resistor, the output end of the power input circuit is grounded through the bidirectional transient suppression diode, the output end of the power input circuit is grounded through the forward conducted diode and the third capacitor, and the cathode of the diode is connected with the input end of the operational amplifier circuit and the first end of the LED lamp bank.
4. The automotive running water lamp according to claim 2, further comprising: and the input end of the voltage stabilizing circuit is connected with the output end of the filtering anti-reflection circuit, and the output end of the voltage stabilizing circuit is connected with the input end of the operational amplifier circuit.
5. The automotive running water lamp according to claim 4, wherein the voltage stabilizing circuit comprises; the second resistor, the voltage stabilizing diode and the first triode;
the collector of the first triode is connected with the output end of the voltage stabilizing circuit, the collector of the first triode is connected with the base of the first triode through the second resistor, the base of the first triode is grounded through the reversely conducted voltage stabilizing diode, and the emitter of the first triode is connected with the input end of the operational amplifier circuit.
6. The automotive running water lamp according to claim 4, wherein the charging element is a capacitor, and the operational amplifier circuit comprises: the third resistor, the fourth resistor, the fifth resistor, the sixth resistor, the fourth capacitor and the operational amplifier;
the output end of the voltage stabilizing circuit is grounded through the third resistor and the fourth resistor, the output end of the voltage stabilizing circuit is grounded through the third resistor and the fourth capacitor, the output end of the voltage stabilizing circuit is grounded through the fifth resistor and the sixth resistor, and the output end of the voltage stabilizing circuit is connected with the first end of the operational amplifier through the third resistor; the output end of the voltage stabilizing circuit is connected with the second end of the operational amplifier through the fifth resistor, and the output end of the voltage stabilizing circuit is connected with the third end of the operational amplifier;
the fourth end of the operational amplifier is grounded, and the fifth end of the operational amplifier is connected with the input end of the other operational amplifier circuit and the second end of the LED lamp bank.
7. The automotive running water lamp of claim 1, wherein the switching circuit comprises: the fourth resistor, the eighth resistor, the ninth resistor and the second triode;
the base electrode of the second triode is connected with the output end of the operational amplifier circuit through the seventh resistor, the base electrode of the second triode is grounded through the eighth resistor, the emitting electrode of the second triode is grounded through the ninth resistor, and the collecting electrode of the second triode is connected with the second end of the LED lamp bank.
8. The automobile water-flowing lamp according to claim 1, wherein the LED lamp set comprises a plurality of LED lamp beads connected in series, and the plurality of LED lamp beads are connected in a common anode manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023081180.0U CN214675777U (en) | 2020-12-17 | 2020-12-17 | Automobile running water lamp based on operational amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023081180.0U CN214675777U (en) | 2020-12-17 | 2020-12-17 | Automobile running water lamp based on operational amplifier |
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| Publication Number | Publication Date |
|---|---|
| CN214675777U true CN214675777U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023081180.0U Active CN214675777U (en) | 2020-12-17 | 2020-12-17 | Automobile running water lamp based on operational amplifier |
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|---|---|
| CN (1) | CN214675777U (en) |
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- 2020-12-17 CN CN202023081180.0U patent/CN214675777U/en active Active
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Address after: 511462 No. 2, Zhengxiang Road, Wanqingsha Town, Nansha District, Guangzhou City, Guangdong Province Patentee after: Lianjing Intelligent Electronics Co.,Ltd. Address before: 511464 No. 1, Honglian Road, Wanqingsha Town, Nansha District, Guangzhou City, Guangdong Province Patentee before: Lianjing Intelligent Electronics Co.,Ltd. |