CN214799968U - Driving device with memory function - Google Patents
Driving device with memory function Download PDFInfo
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- CN214799968U CN214799968U CN202120919095.2U CN202120919095U CN214799968U CN 214799968 U CN214799968 U CN 214799968U CN 202120919095 U CN202120919095 U CN 202120919095U CN 214799968 U CN214799968 U CN 214799968U
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Abstract
The application discloses drive arrangement with memory function relates to lighting device technical field. A drive device having a memory function, comprising: a conversion circuit for receiving a power supply voltage to provide a conversion voltage; a control circuit for providing a first control voltage, a second control voltage or a third control voltage according to the converted voltage; a switching circuit for determining the conduction state of the first output terminal and the second output terminal according to the first control voltage, the second control voltage or the third control voltage; a voltage divider circuit for providing a memory signal according to the converted voltage; and a memory for memorizing the conduction state, wherein if the voltage of the memory signal is greater than the preset voltage, the control circuit is used for controlling the switching circuit to maintain the conduction state of the first output terminal and the second output terminal. The color temperature or brightness state of the luminous body before closing can be memorized without repeatedly switching the switch so as to achieve the state before closing.
Description
Technical Field
The present invention relates to the field of lighting devices, and more particularly, to a driving device with memory function for light emitting diode.
Background
People can use white light with different color temperatures in different places to create different atmospheres. However, the color cycle setting of a general lighting device is rigid, and each manual switching is required, for example, the color arrangement of the lighting device is white/cool white/warm white, and when the warm white is required, the switch needs to be switched twice again, which is very troublesome.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. Therefore, the present application provides a driving device with a memory function, which does not need to repeatedly switch a switch to achieve a pre-off state.
The driving device with a memory function according to an embodiment of the present application includes:
a conversion circuit for receiving a power supply voltage to provide a conversion voltage;
a control circuit for providing a first control voltage, a second control voltage or a third control voltage according to the conversion voltage;
a switching circuit for determining the conduction state of the first output terminal and the second output terminal according to the first control voltage, the second control voltage or the third control voltage;
a voltage divider circuit for providing a memory signal according to the converted voltage; and
the memory is used for memorizing the conducting state, and if the voltage of the memorizing signal is greater than a preset voltage, the control circuit is used for controlling the switching circuit to enable the first output end and the second output end to maintain the conducting state.
Therefore, according to the driving device with the memory function, the color temperature or the brightness state of the light-emitting body before being turned off can be memorized without repeatedly switching the switch to reach the state before being turned off.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The present application is further described with reference to the following figures and examples, in which:
FIG. 1 is a schematic view of a driving device with a memory function according to an embodiment of the present disclosure;
FIG. 2 is a schematic circuit diagram of a driving device with a memory function according to an embodiment of the present disclosure;
FIG. 3 is a circuit schematic of the conversion circuit shown in FIG. 2;
fig. 4 is a circuit schematic diagram of the control circuit and the switching circuit shown in fig. 2.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. The embodiments are intended to cover features of various embodiments, as well as method steps and sequences of method steps for implementing the embodiments. However, other embodiments may be utilized to implement the same or equivalent functions and step sequences.
Unless otherwise defined herein, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Furthermore, as used herein, singular nouns encompass plural forms of such nouns, without incurring a context conflict; the use of plural nouns also covers the singular form of such nouns.
In addition, as used herein, the terms "coupled" or "connected" may refer to two or more elements being connected or in physical or electrical contact with each other, or indirectly, may refer to two or more elements being operated or operated with each other.
In this application, the term "circuit" broadly refers to an object that is connected in some manner by one or more transistors and/or one or more active and passive components to process a signal.
Certain terms are used throughout the description and following claims to refer to particular components. However, it will be understood by those skilled in the art that the same elements may be referred to by different names. The description and the scope of the present application do not intend to distinguish between components that differ in name but not function. In the description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to.
In the description of the present application, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
Fig. 1 is a schematic diagram of a driving apparatus 100 with a memory function according to an embodiment of the present application. As shown in fig. 1, the driving apparatus 100 with a memory function includes a converting circuit 110, a control circuit 120, a switching circuit 130, a first output terminal 140, a second output terminal 150, a voltage dividing circuit 160 and a memory 170. In the connection relationship, the control circuit 120 is coupled to the converting circuit 110, the switching circuit 130 is coupled to the control circuit 120, the first output terminal 140 is coupled to the control circuit 120 through the switching circuit 130, and the second output terminal 150 is coupled to the control circuit 120 through the switching circuit 130. In addition, the control circuit 120 includes a voltage divider 160 and a memory 170.
In order to provide the driving apparatus 100 with a memory function for memorizing the color temperature state of the light-emitting body before turning off, the present application provides the driving apparatus 100 with a memory function as shown in fig. 1, and the related operation thereof is described in detail as follows.
In one embodiment, the conversion circuit 110 is configured to receive a power supply voltage Vin and provide a conversion voltage. The control circuit 120 is used for providing a first control voltage V1, a second control voltage V2 or a third control voltage according to the conversion voltage. The switching circuit 130 is used for determining the on-state of the first output terminal 140 and the second output terminal 150 according to the first control voltage V1, the second control voltage V2, or the third control voltage. The voltage divider 160 provides a memory signal according to the converted voltage. The memory 170 is used for memorizing the conducting state, and if the voltage of the received memory signal is greater than the preset voltage, the control circuit 120 is used for controlling the switching circuit 130 to maintain the conducting state of the first output terminal 140 and the second output terminal 150 during the previous use.
In order to make the above operation of the driving apparatus 100 with a memory function easy to understand, please refer to fig. 1 to 4 together, and fig. 2 is a schematic circuit diagram illustrating the driving apparatus 100 with a memory function according to an embodiment of the disclosure. Fig. 3 is a schematic circuit diagram illustrating the conversion circuit 110 shown in fig. 2 according to an embodiment of the present disclosure. Fig. 4 is a schematic circuit diagram illustrating the control circuit 120 and the switching circuit 130 shown in fig. 2 according to an embodiment of the present disclosure.
As shown in fig. 3, the converting circuit 110 is used for receiving the power supply voltage Vin to provide a converted voltage. As shown in fig. 4, the control circuit 120 is configured to provide the first control voltage V1, the second control voltage V2, or the third control voltage according to the converted voltage. It should be noted that the third control voltage is a combination of the first control voltage V1 and the second control voltage V2.
As shown in fig. 4, the switching circuit 130 is used for determining the on-state of the first output terminal 140 and the second output terminal 150 according to the first control voltage V1, the second control voltage V2, or the third control voltage. For example, when the microcontroller U4 of the switching circuit 130 receives the first control voltage V1, the output O1 of the microcontroller U4 is turned on to switch to the path of the first output 140, so that the first light emitter L1 is turned on to emit light. When the microcontroller U4 of the switching circuit 130 receives the second control voltage V2, the output O2 of the microcontroller U4 is turned on to switch to the path of the second output 150, so that the second light emitter L2 is turned on to emit light. When the microcontroller U4 of the switching circuit 130 receives the third control voltage, the output terminal O1 and the output terminal O2 of the microcontroller U4 are turned on simultaneously to conduct the paths of the first output terminal 140 and the second output terminal 150, so that the first light emitter L1 and the second light emitter L2 are conducted simultaneously to emit light.
In addition, the first light emitter L1 can be turned on to emit yellow light, the second light emitter L2 can be turned on to emit white light, and if the first light emitter L1 and the second light emitter L2 are turned on together, yellow light and white light can be emitted simultaneously.
Then, the voltage divider 160 is used to provide a memory signal according to the converted voltage. The memory 170 is used for memorizing the conducting state, and if the voltage of the memorizing signal is greater than the preset voltage, the control circuit 120 is used for controlling the switching circuit 130 to make the first output terminal 140 and the second output terminal 150 maintain the conducting state in the previous use. For example, the voltage divider circuit 160 receives the converted voltage and divides the voltage into memory signals through internal resistors. The memory 170 receives the memory signal, and if the preset voltage is 5V, when the voltage of the memory signal is greater than 5V, the memory 170 memorizes the conducting state of the first output terminal 140 and/or the second output terminal 150 at this time.
Referring to fig. 1 to 4, in an embodiment, the voltage dividing circuit 160 is coupled to the converting circuit 110, and the voltage dividing circuit 160 is configured to receive the converted voltage and divide the converted voltage by at least two resistors of the voltage dividing circuit 160 to generate the memory signal.
In another embodiment, the at least two resistors of the voltage divider circuit 160 include a first resistor R26 and a second resistor R30. The first resistor R26 is coupled to the converting circuit 110, and the first resistor R26 is used for receiving the converting voltage. The second resistor R30 and the first resistor R26 are coupled to the node G, and the first resistor R26 and the second resistor R30 divide the converted voltage together to generate the memory signal from the node G. For example, if the conversion voltage is 10V and the first resistor R26 and the second resistor R30 are both 100K ohms, the memory signal divided by the resistors is 5V.
In another embodiment, the control circuit 120 includes a detection terminal CLK coupled to the memory 170, and the control circuit 120 detects a memory signal stored in the memory 170 through the detection terminal CLK to determine whether to provide the first control voltage V1, the second control voltage V2, or the third control voltage.
Referring to fig. 1 to 4, in an embodiment, the number of times the control circuit 120 receives the converted voltage is 3n +1, 3n +2, or 3n +3, where n is an integer greater than or equal to 0.
When the control circuit 120 receives the converted voltage 3n +1 times, the control circuit 120 provides the first control voltage V1. When the control circuit 120 receives the converted voltage 3n +2 times, the control circuit 120 provides the second control voltage V2. For example, when the control circuit 120 receives the converted voltage 1, 4, 7 …, etc., the control circuit 120 provides the first control voltage V1, and when the control circuit 120 receives the converted voltage 2, 5, 8 …, etc., the control circuit 120 provides the second control voltage V2.
When the switching circuit 130 receives the first control voltage V1, the switching circuit 130 turns on the first output terminal 140. When the switching circuit 130 receives the second control voltage V2, the switching circuit 130 turns on the second output terminal 150.
When the control circuit 120 receives the converted voltage 3n +3 times, the control circuit 120 provides a third control voltage. For example, when the control circuit 120 receives the converted voltage for 3, 6, 9 …, etc., the control circuit 120 provides the third control voltage. In addition, the third control voltage is a combination of the first control voltage V1 and the second control voltage V2.
When the switching circuit 130 receives the third control voltage, the switching circuit 130 turns on the first output terminal 140 and the second output terminal 150.
Referring to fig. 1 to 4, in an embodiment, the control circuit 120 includes a microcontroller U3, and the microcontroller U3 is coupled to the memory 170, wherein the first voltage output terminal GD1 and the second voltage output terminal GD2 of the microcontroller U3 provide the first control voltage V1, the second control voltage V2, or the third control voltage according to the converted voltage.
When the microcontroller U3 receives the converted voltage 3n +1 times, the first voltage output terminal GD1 provides the first control voltage V1. When the microcontroller U3 receives the converted voltage 3n +2 times, the second voltage output terminal GD2 provides the second control voltage V2. For example, when the microcontroller U3 receives the converted voltage for 1, 4, 7 …, etc., the first voltage output terminal GD1 provides the first control voltage V1, and when the microcontroller U3 receives the converted voltage for 2, 5, 8 …, etc., the second voltage output terminal GD2 provides the second control voltage V2.
When the microcontroller U3 receives the converted voltage 3n +3 times, the first voltage output terminal GD1 provides the first control voltage V1, and the second voltage output terminal GD2 provides the second control voltage V2. For example, when the microcontroller U3 receives the converted voltage for 3, 6, 9 …, etc., times, the first voltage output terminal GD1 provides the first control voltage V1, and the second voltage output terminal GD2 provides the second control voltage V2. In addition, when the first voltage output terminal GD1 and the second voltage output terminal GD2 of the microcontroller U3 simultaneously output the first control voltage V1 and the second control voltage V2, the microcontroller U3 outputs a combination of the first control voltage V1 and the second control voltage V2, that is, the microcontroller U3 outputs the third control voltage.
As can be seen from the above embodiments, the present application has the following advantages. The control circuit 100 of the embodiment of the present application can be adapted to memorize the color temperature or brightness state of the light-emitting body before turning off, without repeatedly switching the switch to achieve the state before turning off.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Claims (10)
1. A drive device having a memory function, comprising:
a conversion circuit for receiving a power supply voltage to provide a conversion voltage;
a control circuit for providing a first control voltage, a second control voltage or a third control voltage according to the conversion voltage;
a switching circuit for determining the conduction state of the first output terminal and the second output terminal according to the first control voltage, the second control voltage or the third control voltage;
a voltage divider circuit for providing a memory signal according to the converted voltage; and
the memory is used for memorizing the conducting state, and if the voltage of the memorizing signal is greater than a preset voltage, the control circuit is used for controlling the switching circuit to enable the first output end and the second output end to maintain the conducting state.
2. The driving apparatus as claimed in claim 1, wherein the voltage divider circuit is coupled to the converting circuit, and the voltage divider circuit is configured to receive the converting voltage and divide the converting voltage by at least two resistors of the voltage divider circuit to generate the memory signal.
3. The driving device with memory function according to claim 2, wherein the two resistors of the voltage divider circuit comprise:
a first resistor coupled to the conversion circuit and configured to receive the conversion voltage;
and a second resistor coupled to a node with the first resistor, wherein the first resistor and the second resistor divide the converted voltage together to generate the memory signal from the node.
4. The driving apparatus with a memory function according to claim 3, wherein the control circuit comprises:
the control circuit detects the memory signal stored in the memory through the detection terminal to determine whether to provide the first control voltage, the second control voltage or the third control voltage.
5. The driving apparatus with memory function according to claim 4, wherein the number of times the control circuit receives the converted voltage is 3n +1, 3n +2 or 3n +3, where n is an integer greater than or equal to 0.
6. The driving apparatus with memory function according to claim 5, wherein the control circuit provides the first control voltage when the control circuit receives the converted voltage 3n +1 times; wherein when the control circuit receives the converted voltage 3n +2 times, the control circuit provides the second control voltage; wherein the switching circuit turns on the first output terminal when the switching circuit receives the first control voltage; wherein the switching circuit turns on the second output terminal when the switching circuit receives the second control voltage.
7. The driving apparatus with memory function as claimed in claim 6, wherein when the control circuit receives the converted voltage 3n +3 times, the control circuit provides the third control voltage; wherein the switching circuit turns on the first output terminal and the second output terminal when the switching circuit receives the third control voltage.
8. The driving apparatus with a memory function according to claim 5, wherein the control circuit comprises:
a microcontroller coupled to the memory, wherein a first voltage output terminal and a second voltage output terminal of the microcontroller provide the first control voltage, the second control voltage, or the third control voltage according to the converted voltage.
9. The driving apparatus with memory function according to claim 8, wherein when the microcontroller receives the converted voltage 3n +1 times, the first voltage output terminal provides the first control voltage; when the number of times that the microcontroller receives the converted voltage is 3n +2 times, the second voltage output end provides the second control voltage.
10. The driving apparatus with memory function as claimed in claim 9, wherein when the microcontroller receives the converted voltage 3n +3 times, the first voltage output terminal provides the first control voltage and the second voltage output terminal provides the second control voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120919095.2U CN214799968U (en) | 2021-04-29 | 2021-04-29 | Driving device with memory function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120919095.2U CN214799968U (en) | 2021-04-29 | 2021-04-29 | Driving device with memory function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214799968U true CN214799968U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120919095.2U Active CN214799968U (en) | 2021-04-29 | 2021-04-29 | Driving device with memory function |
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| CN (1) | CN214799968U (en) |
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- 2021-04-29 CN CN202120919095.2U patent/CN214799968U/en active Active
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