CN216795334U - Lamp belt controller - Google Patents
Lamp belt controller Download PDFInfo
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- CN216795334U CN216795334U CN202122754686.1U CN202122754686U CN216795334U CN 216795334 U CN216795334 U CN 216795334U CN 202122754686 U CN202122754686 U CN 202122754686U CN 216795334 U CN216795334 U CN 216795334U
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Abstract
The application relates to a lamp strip controller, include: the lamp band control circuit comprises a lamp band driving circuit, a current detection circuit and a lamp band control circuit; wherein: the current detection circuit is respectively connected with the lamp belt driving circuit and the lamp belt control circuit and is used for detecting the driving current of the lamp belt driving circuit and transmitting the detected driving current to the lamp belt control circuit; the lamp strip control circuit is connected with the lamp strip driving circuit and used for generating a control signal according to the driving current; the lamp belt driving circuit controls the state of the lamp belt according to the control signal, and the problem that the operation level of a user accessing the lamp belt is required to be too high to cause poor user experience in the related art is solved.
Description
Technical Field
The application relates to the field of lighting, in particular to a lamp strip controller.
Background
With the continuous development of lamp decorations, the application range of the lamp strip is also wider and wider, such as scene lighting, building outlines, advertisement signs and the like.
The lamp strip/lamp string in the current market is basically that a controller outputs constant direct current/pulse direct current voltage to drive the lamp strip/lamp string with variable length, and the controller controls the work of the lamp strip. Since most users are non-professional persons, the users are likely to access the lamp strip with the length exceeding the driving length of the controller, and the risk of causing damage to the controller and even causing fire exists.
At present, no effective solution is provided for the problem of poor user experience caused by high requirements on the operation level of a user access lamp strip in the related art.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a lamp strip controller to at least solve the problem that the operation level requirement for a user to access a lamp strip in the related art is too high to cause poor user experience.
The embodiment of the application provides a lamp area controller, control circuit includes: the lamp band control circuit comprises a lamp band driving circuit, a current detection circuit and a lamp band control circuit; wherein:
the current detection circuit is respectively connected with the lamp strip driving circuit and the lamp strip control circuit and is used for detecting the driving current of the lamp strip driving circuit and transmitting the detected driving current to the lamp strip control circuit;
the lamp strip control circuit is connected with the lamp strip driving circuit and used for generating a control signal according to the driving current; so that the lamp strip driving circuit controls the state of the lamp strip according to the control signal.
In some embodiments, the current detection circuit is a first resistor or a copper foil wire connected in series in the lamp strip driving circuit, one end of the first resistor or the copper foil wire is connected to the lamp strip driving circuit and the lamp strip control circuit, respectively, and one end of the first resistor or the copper foil wire is grounded.
In some embodiments, the current detection circuit includes a power detection chip and a processing chip, one end of the power detection chip is connected to the lamp strip driving circuit, and the other end of the power detection chip is connected to the lamp strip control circuit through the processing chip.
In some of these embodiments, the power detection chip includes a current sampling circuit and a voltage sampling circuit; wherein:
one end of the current sampling circuit is connected with the lamp strip driving circuit, and the other end of the current sampling circuit is connected with one end of the processing chip and used for collecting the output current of the lamp strip driving circuit;
one end of the voltage sampling circuit is connected with the lamp strip driving circuit, and the other end of the voltage sampling circuit is connected with one end of the processing chip and used for collecting the output voltage of the lamp strip driving circuit;
the other end of the processing chip is connected with the lamp strip control circuit and used for processing the output current and the output voltage and then outputting the processed output current and the processed output voltage to the lamp strip control circuit.
In some embodiments, the lamp strip controller further includes a signal amplification circuit, one end of the signal amplification circuit is connected to the current detection circuit, and the other end of the signal amplification circuit is connected to the lamp strip control circuit.
In some embodiments, the lamp strip control circuit is provided with an abnormality detection circuit and a control signal circuit; one end of the abnormality detection circuit is connected with the current detection circuit, the other end of the abnormality detection circuit is connected with one end of the control signal circuit, and the other end of the control signal circuit is connected with the lamp strip driving circuit.
In some embodiments, the abnormality detection circuit is configured to compare the driving current with a preset current, and if the driving current exceeds the preset current, the control signal circuit generates a control signal for reducing an effective current of the light strip driving signal to the light strip driving circuit.
In some of these embodiments, the light fixture is an RGB three-color light strip; the current detection circuit detects the magnitude and the phase of the red light current, the green light current, the blue light current and the total current of the lamp strip driving circuit and sends the magnitude and the phase to the lamp strip control circuit;
the abnormity detection circuit is used for determining the working condition of each lamp strip according to the magnitude and the phase of the red light current, the green light current, the blue light current and the total current, generating a control signal for disconnecting the driving signal to the lamp strip driving circuit when detecting that any lamp strip is abnormal, and sending prompt information.
In some of these embodiments, the light strip controller further comprises a second resistor and a capacitor; the current detection circuit is connected with the lamp strip control circuit through the first resistor; the first resistor and the common end of the lamp strip control circuit are connected with one end of a capacitor, and the other end of the capacitor is grounded.
In some of these embodiments, the light strip control circuitry is integral with the light strip.
Compared with the related art, the lamp strip controller provided by the embodiment of the application comprises: the lamp band control circuit comprises a lamp band driving circuit, a current detection circuit and a lamp band control circuit; wherein: the current detection circuit is respectively connected with the lamp strip driving circuit and the lamp strip control circuit and is used for detecting the driving current of the lamp strip driving circuit and transmitting the detected driving current to the lamp strip control circuit; the lamp strip control circuit is connected with the lamp strip driving circuit and used for generating a control signal according to the driving current; the lamp strip driving circuit controls the state of the lamp strip according to the control signal, and the problem that the user experience is poor due to the fact that the requirement for the operation level of a user to access the lamp strip is too high in the related technology is solved.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a functional block diagram of a light strip controller and a light strip provided by the present application;
fig. 2 is a circuit diagram of a light strip control circuit provided in an embodiment of the present application;
fig. 3 is a circuit diagram of a light strip control circuit provided in another embodiment of the present application;
fig. 4 is a schematic current diagram of a lamp bead in a full bright state according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application.
It is obvious that the drawings in the following description are only examples or embodiments of the present application, and that it is also possible for a person skilled in the art to apply the present application to other similar contexts on the basis of these drawings without inventive effort. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by one of ordinary skill in the art that the embodiments described herein may be combined with other embodiments without conflict.
Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means two or more. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, "a and/or B" may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.
The application provides a lamp area controller 10, lamp area controller 10 includes: a lamp strip driving circuit 101, a current detection circuit 102 and a lamp strip control circuit 103; wherein:
the current detection circuit 102 is respectively connected with the lamp strip driving circuit 101 and the lamp strip control circuit 103, and is configured to detect a driving current of the lamp strip driving circuit 101, and transmit the detected driving current to the lamp strip control circuit 103;
the lamp strip control circuit 103 is connected with the lamp strip driving circuit 101 and is used for generating a control signal according to the driving current; so that the lamp strip driving circuit 101 controls the state of the lamp strip according to the control signal.
As shown in fig. 1, the tape drive circuit 101, the current detection circuit 102, and the tape control circuit 103 are integrated in the controller. The traditional controller only performs one-way output control and cannot identify whether the lamp strip has abnormal conditions or not. Because the user is mostly non-professional, probably will insert the lamp area that exceeds the controller can drive length, and there is the risk that causes the controller to damage and even lead to the conflagration. In the application, increase current sampling circuit for the controller, because of the controller all has control chip/control module group basically, utilize ADC (analog-to-digital converter) function collection lamp area/lamp cluster current signal of controller, through the amplitude of electric current, phase place, switch-on period isoparametric, can discern the operating condition in lamp area/lamp cluster, let the controller safer, intelligent when using, promote the added value and the user experience of product and feel.
In some embodiments, the current detection circuit 102 is a first resistor or a copper foil wire connected in series in the tape drive circuit 101, one end of the first resistor or the copper foil wire is connected to the tape drive circuit 101 and the tape control circuit 103, respectively, and one end of the first resistor or the copper foil wire is grounded.
Fig. 2 is a schematic diagram of a part of the circuit of the lamp strip control circuit 103. As shown in fig. 2, Q1-Q5 and R9-R18 are the lamp tape driving circuit 101. The first resistor R34 (parameters can be modified) or the copper foil wiring is used for current sampling, and the collected signals are transmitted to a controller ADC (analog-to-digital converter) pin through the R33 (or the collected signals are amplified by a signal amplifying circuit and then transmitted to the ADC pin).
It should be noted that R33 is not an optional device, and can also be directly short-circuited; c11 is also an optional device and may not be attached.
In some embodiments, as shown in fig. 3, the current detection circuit 102 is a power detection chip and a processing chip, one end of the power detection chip is connected to the lamp strip driving circuit 101, and the other end of the power detection chip is connected to the lamp strip control circuit 103 through the processing chip.
The power detection chip is adopted in the embodiment, so that the driving current can be detected with higher precision, and the control precision is further improved.
In other embodiments, more accurate and functional current/voltage/power sensing circuits or structures, such as current couplers, photo-couplers, etc., may be used.
In some of these embodiments, the power detection chip includes a current sampling circuit and a voltage sampling circuit; wherein:
one end of the current sampling circuit is connected with the lamp strip driving circuit 101, and the other end of the current sampling circuit is connected with one end of the processing chip and is used for collecting the output current of the lamp strip driving circuit 101;
one end of the voltage sampling circuit is connected with the lamp belt driving circuit 101, and the other end of the voltage sampling circuit is connected with one end of the processing chip and is used for collecting the output voltage of the lamp belt driving circuit 101;
the other end of the processing chip is connected with the lamp band control circuit 103 and is used for processing the output current and the output voltage and then outputting the processed output current and output voltage to the lamp band control circuit 103.
As shown in fig. 3, R8 is a current sampling circuit (which may be replaced by copper foil wires), R1-R7 is a voltage sampling circuit, and after the signal collected by the two circuits is processed by the U2, the signal is transmitted to the lamp strip control circuit 103 through CF, CF1 and SEL pins. It should be noted that the device parameters in fig. 3 can be adjusted due to circuit differences, the processing chip can be replaced by other types, and the circuit configuration can be changed correspondingly when the chip type is replaced.
In some embodiments, the light strip controller 10 further includes a signal amplifying circuit, one end of the signal amplifying circuit is connected to the current detecting circuit 102, and the other end of the signal amplifying circuit is connected to the light strip control circuit 103.
In some embodiments, the lamp strip control circuit 103 is configured with an abnormality detection circuit and a control signal circuit; one end of the abnormality detection circuit is connected to the current detection circuit 102, the other end of the abnormality detection circuit is connected to one end of the control signal circuit, and the other end of the control signal circuit is connected to the lamp strip driving circuit 101.
In some embodiments, the abnormality detection circuit is configured to compare the driving current with a preset current, and if the driving current exceeds the preset current, the control signal circuit generates a control signal to reduce the effective current of the tape driving signal, and sends the control signal to the tape driving circuit 101.
If the detected current exceeds the preset value, the fact that the lamp strip connected by the user is longer is indicated, the effective current can be reduced by changing the conduction state of the lamp strip, the user is prompted, and if the current is not detected during working, the fact that the lamp strip is not connected or damaged or the controller is abnormal is indicated.
Because under the fixed condition of input voltage, the total length of the same type of lamp strip is longer, and when the lamp strip control circuit 103 is switched on, the current is also larger. And when the current is detected to exceed the preset value, the lamp strip connected by the user is longer.
The detected current can be used for detecting the total current and can also be used for respectively detecting each path of current, because one path of current (or some paths of current) is easy to light, the other paths of current are not easy to light, and the detected current is the current (or the sum of the currents of some paths of current) of a single street lamp.
The bright instruction of the corresponding lamp of controller output to detect the magnitude and/or the phase place of drive current this moment, discover unusually, can report information and inform the user to the APP end, also can promptly turn off the output of lamp area, prevent that the lamp area short circuit or mismatch from damaging the condition that lamp area controller 10 even caused the conflagration.
In some of these embodiments, the light fixture is an RGB three-color light strip; the current detection circuit 102 detects the magnitude and phase of the red current, the green current, the blue current and the total current of the lamp strip driving circuit 101, and sends the magnitudes and the phases to the lamp strip control circuit 103;
the abnormality detection circuit is used for determining the working conditions of the light belts according to the magnitude and the phase of the red light current, the green light current, the blue light current and the total current, generating a control signal for disconnecting the driving signal to the light belt driving circuit 101 when detecting that any one light belt is abnormal, and sending prompt information.
In this embodiment, referring to fig. 4, three street lamps are respectively turned on, the magnitude and the phase of the current are detected, and whether the working state of each street lamp is normal or not can be determined; for example, during the time that the tape controller 10 drives the tape, for example, during the time period T2, the current should be detected but no current is detected (or current is detected only in a part of the time), which may be the case that the specification of the tape is not correct, or the tape is not installed/installed, or the tape is damaged; for another example, when the RGB three-color lamps are turned on respectively, if one of the three-color lamps is turned on without detecting current or the detected current is much smaller than the other two of the three-color lamps, it can be determined that the color lamp bead has poor contact or is damaged; the controller may send product status information to the APP (or other form) to inform the user to allow the user to check the product installation.
Detecting the current within the time when the current is not detected, and judging whether the lamp belt is short-circuited or not according to the current or not; for example, no current should be detected within T3 time during normal operation, if a large current is detected within the time period, it may be determined that the lamp strip is short-circuited, and if a current is detected within a partial time period within the time period, it may be determined that the specification of the lamp strip is not correct (for example, the lamp strip is applied to a 120V lamp strip and used in a 220V power supply situation). The controller can send product state information and inform the user in APP (or other forms), can cut off the lamp area output when necessary, protection lamp area and controller, prevention conflagration.
In some embodiments, the grid frequency can be confirmed by detecting each conduction period T1, so that zero-crossing detection current of part of controllers can be omitted, and cost is saved; the input voltage of the power grid can be roughly determined, and the power of the lamp strip can be roughly estimated (the power needing to be measured accurately can assist the use of a power testing chip/module, or the input voltage detection function can be added).
The embodiment mainly aims at the high-voltage lamp string product, because the mains supply is sine wave, when a certain road or a plurality of road lamps of the controller work, the magnitude and the phase of the current are changed along with the voltage and the frequency of the input mains supply, and the voltage magnitude change can be inferred through the magnitude of the current, so that whether the input voltage reaches the zero crossing point or not is known; the frequency of the detection current can determine the frequency of the commercial power, and since the commercial power is basically 50Hz at 200-240V and 60Hz at 100-120V, the approximate voltage of the input can be determined according to the frequency.
The above detection cases are only exemplary and include other detection application scenarios such as single color, dual color, and multi-color products.
In some embodiments, the lamp strip control circuit 103 and the lamp strip are integrally arranged, so that the appearance is more attractive.
The technology can enable the controller to identify the state of the lamp belt/lamp string, such as whether the lamp belt/lamp string is too long, whether the lamp belt/lamp string is in poor contact, whether the lamp belt/lamp string is not connected, whether the lamp belt/lamp string is damaged or not, and the like. The added value of the controller is increased, the product user experience is improved, and the product competitiveness is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A light strip controller, characterized in that it comprises: the lamp band control circuit comprises a lamp band driving circuit, a current detection circuit and a lamp band control circuit; wherein:
the current detection circuit is respectively connected with the lamp strip driving circuit and the lamp strip control circuit and is used for detecting the driving current of the lamp strip driving circuit and transmitting the detected driving current to the lamp strip control circuit;
the lamp strip control circuit is connected with the lamp strip driving circuit and used for generating a control signal according to the driving current so that the lamp strip driving circuit controls the state of a lamp strip according to the control signal.
2. The lamp strip controller according to claim 1, wherein the current detection circuit is a first resistor or a copper foil wire connected in series in the lamp strip driving circuit, one end of the first resistor or the copper foil wire is connected to the lamp strip driving circuit and the lamp strip control circuit, respectively, and one end of the first resistor or the copper foil wire is grounded.
3. The strip controller according to claim 1, wherein the current detection circuit comprises a power detection chip and a processing chip, one end of the power detection chip is connected to the strip driving circuit, and the other end of the power detection chip is connected to the strip control circuit through the processing chip.
4. The light strip controller of claim 3, wherein the power detection chip comprises a current sampling circuit and a voltage sampling circuit; wherein:
one end of the current sampling circuit is connected with the lamp strip driving circuit, and the other end of the current sampling circuit is connected with one end of the processing chip and used for collecting the output current of the lamp strip driving circuit;
one end of the voltage sampling circuit is connected with the lamp strip driving circuit, and the other end of the voltage sampling circuit is connected with one end of the processing chip and used for collecting the output voltage of the lamp strip driving circuit;
the other end of the processing chip is connected with the lamp strip control circuit and used for processing the output current and the output voltage and then outputting the processed output current and the processed output voltage to the lamp strip control circuit.
5. A light strip controller as claimed in claim 1, further comprising a signal amplification circuit, one end of which is connected to the current detection circuit and the other end of which is connected to the light strip control circuit.
6. A light strip controller according to claim 1, wherein said light strip control circuit is provided with an abnormality detection circuit and a control signal circuit; one end of the abnormality detection circuit is connected with the current detection circuit, the other end of the abnormality detection circuit is connected with one end of the control signal circuit, and the other end of the control signal circuit is connected with the lamp strip driving circuit.
7. The lamp strip controller according to claim 6, wherein the abnormality detection circuit is configured to compare the driving current with a preset current, and if the driving current exceeds the preset current, the control signal circuit generates a control signal for reducing the effective current of the lamp strip driving circuit to the lamp strip driving circuit.
8. A light strip controller as claimed in claim 6, wherein the light strip is an RGB three-color light strip; the current detection circuit detects the magnitude and the phase of the red light current, the green light current, the blue light current and the total current of the lamp strip driving circuit and sends the magnitude and the phase to the lamp strip control circuit;
the abnormity detection circuit is used for determining the working condition of each lamp strip according to the magnitude and the phase of the red light current, the green light current, the blue light current and the total current, generating a control signal for disconnecting the driving signal to the lamp strip driving circuit when detecting that any lamp strip is abnormal, and sending prompt information.
9. A light strip controller as claimed in claim 2, further comprising a second resistor and capacitor; the current detection circuit is connected with the lamp strip control circuit through the first resistor; the first resistor and the common end of the lamp strip control circuit are connected with one end of a capacitor, and the other end of the capacitor is grounded.
10. A light strip controller as claimed in claim 1, wherein the light strip control circuitry is integral with the light strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122754686.1U CN216795334U (en) | 2021-11-11 | 2021-11-11 | Lamp belt controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122754686.1U CN216795334U (en) | 2021-11-11 | 2021-11-11 | Lamp belt controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216795334U true CN216795334U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122754686.1U Active CN216795334U (en) | 2021-11-11 | 2021-11-11 | Lamp belt controller |
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|---|---|
| CN (1) | CN216795334U (en) |
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2021
- 2021-11-11 CN CN202122754686.1U patent/CN216795334U/en active Active
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