CN212660352U - Drive control circuit - Google Patents
Drive control circuit Download PDFInfo
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- CN212660352U CN212660352U CN202021516896.6U CN202021516896U CN212660352U CN 212660352 U CN212660352 U CN 212660352U CN 202021516896 U CN202021516896 U CN 202021516896U CN 212660352 U CN212660352 U CN 212660352U
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Abstract
The utility model discloses a drive control circuit, include: the driving module is used for outputting a driving signal; the control module is electrically connected with the driving module; wherein the control module comprises: the signal receiving unit is used for receiving the first control signal and outputting a second control signal; and one end of the signal conversion unit is electrically connected with the first end of the signal receiving unit, and the other end of the signal conversion unit is electrically connected with the driving module and is used for converting the second control signal and outputting a third control signal so as to control the output value of the driving signal. The utility model discloses a through separately setting up drive module and control module, avoided the secondary development to drive module, reduced the development cost and reduced the development degree of difficulty.
Description
Technical Field
The utility model belongs to the technical field of the circuit control technique and specifically relates to a drive control circuit is related to.
Background
Currently, more and more intelligent products are emerging, such as: the intelligent LED lighting control system comprises an intelligent home, an intelligent LED and the like, wherein a user can control the on-off state of the intelligent LED through voice, a mobile phone and the like. In the related art, an intelligent control module needs to be integrated on an original driving module to realize intelligent control of the LED, but the method needs to change the original driving module, which increases the development period and development difficulty of the intelligent LED.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a drive control circuit through separately setting up control module and drive module to shorten intelligent LED's development cycle and reduce the development degree of difficulty.
The utility model discloses a drive control circuit, include: the driving module is used for outputting a driving signal; the control module is electrically connected with the driving module; wherein the control module comprises: the signal receiving unit is used for receiving the first control signal and outputting a second control signal; and one end of the signal conversion unit is electrically connected with the first end of the signal receiving unit, and the other end of the signal conversion unit is electrically connected with the driving module and is used for converting the second control signal and outputting a third control signal so as to control the output value of the driving signal.
The utility model discloses drive control circuit has following beneficial effect at least: the signal receiving unit receives a first control signal sent by a user and outputs a second control signal, and the signal conversion unit converts the second control signal and outputs a third control signal, so that the control module controls the output of the driving module, and further controls the light emitting state of the LED. Through separately setting up drive module and control module, avoided the secondary development to drive module, improved control module's suitability, reduced the development cost and reduced the development degree of difficulty.
According to the utility model discloses a drive control circuit of other embodiments, control module still includes: a voltage reduction unit; the voltage reduction unit is electrically connected with the second end of the signal receiving unit and used for providing power supply voltage.
According to the utility model discloses a drive control circuit of other embodiments, the signal conversion unit includes: the integrating circuit is electrically connected with the signal receiving unit and used for converting the second control signal and outputting a fourth control signal; the voltage amplifying circuit is electrically connected with the integrating circuit and is used for amplifying the fourth control signal to generate the third control signal; and one end of the driving circuit is electrically connected with the voltage amplifying circuit, and the other end of the driving circuit is electrically connected with the driving module.
According to the utility model discloses a drive control circuit of other embodiments, the signal conversion unit still includes: a filter circuit; one end of the filter circuit is electrically connected with the integrating circuit, and the other end of the filter circuit is electrically connected with the voltage amplifying circuit.
According to other embodiments of the present invention, the drive control circuit, the integration circuit includes: one end of the first resistor is electrically connected with the first end of the signal receiving unit; and one end of the first capacitor is electrically connected with the other end of the first resistor, and the other end of the first capacitor is grounded.
According to the utility model discloses a drive control circuit of other embodiments, filter circuit includes: one end of the second resistor is electrically connected with the other end of the first resistor, and the other end of the second resistor is electrically connected with the voltage amplifying circuit; and one end of the second capacitor is electrically connected with the other end of the first capacitor and grounded, and the other end of the second capacitor is electrically connected with the second resistor and a connecting node of the voltage amplifying circuit.
According to the utility model discloses a drive control circuit of other embodiments, voltage amplification circuit includes: the first end of the operational amplifier is electrically connected with the other end of the second resistor; a third resistor, one end of which is electrically connected with the second end of the operational amplifier; one end of the fourth resistor is electrically connected with the third resistor, and the other end of the fourth resistor is grounded; wherein a connection node of the third resistor and the fourth resistor is electrically connected to a third terminal of the operational amplifier.
According to other embodiments of the present invention, a drive control circuit includes: the base electrode of the triode is electrically connected with the second end of the operational amplifier, and the collector electrode of the triode is electrically connected with the fourth end of the operational amplifier; and one end of the fifth resistor is electrically connected with the emitting electrode of the triode, and the other end of the fifth resistor is electrically connected with the other end of the fourth resistor and grounded.
According to the utility model discloses a drive control circuit of other embodiments, the step-down unit includes: a voltage reduction module; one end of the sixth resistor is electrically connected with the first end of the voltage reduction module, and the other end of the sixth resistor is electrically connected with the second end of the signal receiving unit; and one end of the seventh resistor is electrically connected with one end of the sixth resistor, and the other end of the seventh resistor is electrically connected with the second end of the voltage reduction module and grounded.
According to the utility model discloses a drive control circuit of other embodiments, step-down module still includes: the anode of the diode is electrically connected with the third end of the voltage reduction module, and the cathode of the diode is electrically connected with the fourth end of the voltage reduction module; an inductor electrically connected to the diode.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a block diagram of a driving control circuit according to an embodiment of the present invention;
fig. 2 is a circuit diagram of an embodiment of a signal conversion unit according to the present invention;
fig. 3 is a schematic circuit diagram of an embodiment of a voltage reduction unit according to the present invention;
fig. 4 is a circuit diagram of an embodiment of a driving control circuit according to the present invention.
Reference numerals:
the LED driving circuit comprises a driving module 100, a control module 200, a signal receiving unit 210, an integrating circuit 221, a voltage amplifying circuit 222, a driving circuit 223, a filter circuit 224, a signal converting unit 220, a voltage reducing unit 230 and an LED 300.
Detailed Description
The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
Referring to fig. 1, in some embodiments, a drive control circuit includes: the driving module 100 is used for outputting a driving signal, and the driving module 100 is electrically connected with the control module 200. Wherein, the control module 200 comprises: the signal conversion module comprises a signal receiving unit 210 and a signal conversion unit 220, wherein one end of the signal conversion unit 220 is electrically connected with the signal receiving unit 210, the other end of the signal conversion unit 220 is electrically connected with the driving module 100, and the signal receiving unit 210 is used for receiving a first control signal and outputting a second control signal; the signal conversion unit 220 converts the second control signal and outputs a third control signal to control an output value of the driving signal. Specifically, the signal receiving unit 210 includes any one of: the signal receiving unit 210 is configured to receive a first control signal sent by a user, and process the first control signal to generate a second control signal. In a specific embodiment, the first control signal includes a voice signal, an infrared signal, a bluetooth signal, and the like, the signal receiving unit 210 processes the first control signal to generate a PWM signal, the signal converting unit 220 receives the PWM signal and converts the PWM signal into a 0-10V signal, and the driving module 100 outputs currents or voltages with different values according to the 0-10V signal, so as to implement dimming control on the LED. It is understood that the third control signal may also include other dimming signals such as DALI.
In the embodiment of the application, the signal receiving unit 210 receives the first control signal sent by the user and outputs the second control signal, and the signal converting unit 220 converts the second control signal and outputs the third control signal, so that the control module 200 controls the output of the driving module 100, and further controls the light emitting state of the LED. By separately arranging the driving module 100 and the control module 200, secondary development of the driving module 100 is avoided, development cost is reduced, and development difficulty is reduced.
Referring to fig. 1, in some embodiments, the control module 200 further comprises: the voltage reducing unit 230, the voltage reducing unit 230 is electrically connected to the signal receiving unit 210, and is configured to provide a supply voltage for the signal receiving unit 210.
Referring to fig. 2, in some embodiments, the signal conversion unit includes: an integration circuit 221, a voltage amplification circuit 222, and a drive circuit 223. The integrating circuit 221 is electrically connected to the signal receiving unit 210, and is configured to convert the second control signal and output a fourth control signal; the voltage amplifying circuit 222 is electrically connected to the integrating circuit 221, and is configured to amplify the fourth control signal to generate a third control signal; one end of the driving circuit 223 is electrically connected to the voltage amplifying circuit 222, and the other end of the driving circuit 223 is electrically connected to the driving module 100. Specifically, the signal conversion unit further includes: one end of the filter circuit 224 is electrically connected to the integration circuit 221, and the other end of the filter circuit 224 is electrically connected to the voltage amplification circuit 222.
In some specific embodiments, the integrating circuit 221 includes: the first resistor R1 and the first capacitor C1, the signal receiving unit 210 includes: in the chip CON1, the first terminal of the signal receiving unit 210 is the seventh pin of the chip CON1, and the second terminal of the signal receiving unit 210 is the second pin of the chip CON 1. One end of the first resistor R1 is electrically connected to the seventh pin of the chip CON1, the other end of the first resistor R1 is electrically connected to one end of the first capacitor C1, and the other end of the first capacitor C1 is grounded. The filter circuit 224 includes: a second resistor R2 and a second capacitor C2, wherein one end of the second resistor R2 is electrically connected with the other end of the first resistor R1, and the other end of the second resistor R2 is electrically connected with the voltage amplifying circuit 222; one end of the second capacitor C2 is electrically connected to the other end of the first capacitor C1 and grounded, and the other end of the second capacitor C2 is electrically connected to a connection node between the second resistor R2 and the voltage amplification circuit 222. The voltage amplification circuit 222 includes: the operational amplifier U2, the third resistor R3 and the fourth resistor R4, wherein the first end of the operational amplifier U2 is electrically connected with the other end of the second resistor R2; one end of the third resistor R3 is electrically connected with the second end of the operational amplifier U2, and one end of the fourth resistor R4 is electrically connected with the third resistor R3; the other end of the fourth resistor R4 is grounded; and the connection node of the third resistor R3 and the fourth resistor R4 is electrically connected with the third end of the operational amplifier U2. The drive circuit 223 includes: a triode Q3 and a fifth resistor R5, wherein the base electrode of the triode Q3 is electrically connected with the second end of the operational amplifier U2, and the collector electrode of the triode Q3 is electrically connected with the fourth end of the operational amplifier U2; one end of the fifth resistor R5 is electrically connected to the emitter of the transistor Q3, and the other end of the fifth resistor R5 is electrically connected to the other end of the fourth resistor R4 and grounded.
Specifically, the first end of the operational amplifier U2 is the fifth pin of the operational amplifier U2, the second end of the operational amplifier U2 is the fifth pin of the operational amplifier U2, the third end of the operational amplifier U2 is the sixth pin of the operational amplifier U2, and the fourth end of the operational amplifier U2 is the eighth pin of the operational amplifier U2. The other end of the second resistor R2 and the other end of the second capacitor C2 are both electrically connected with the fifth pin of the operational amplifier U2, one end of the third resistor R3 is electrically connected with the seventh pin of the operational amplifier U2, and the sixth pin of the operational amplifier U2 is electrically connected with the connection node of the third resistor R3 and the fourth resistor R4. The base of the transistor Q3 is electrically connected to the seventh pin of the operational amplifier U2, and the collector of the transistor Q3 is electrically connected to the eighth pin of the operational amplifier U2.
In a specific embodiment, the integrating circuit 221 formed by the first resistor R1 and the first capacitor C1 converts the second control signal into the dc voltage signal V1, and when the second control signal is a PWM signal, the voltage V1 is D VPP, where D represents a duty ratio of the PWM signal and VPP represents a voltage amplitude of the PWM signal. The direct current voltage signal V1 passes through a high pass filter formed by a second resistor R2 and a second capacitor C2, high frequency noise in the direct current voltage signal V1 is filtered, and the filtered direct current voltage signal V1 is input to the positive input end of the operational amplifier U2. The third resistor R3, the fourth resistor R4, and the operational amplifier U2 form the voltage amplifying circuit 222, and the amplification factor of the voltage amplifying circuit 222 is determined by the resistance ratio of the third resistor R3 to the fourth resistor R4, specifically, the amplification factor β is (R3+ R4)/R4. The amplified voltage signal V1 is input to the driving circuit 223, and the transistor Q3 and the fifth resistor R5 form the driving circuit 223, so as to enhance the driving capability of the circuit. The PWM signal passes through the integrating circuit 221, the filter circuit 224, and the voltage amplifying circuit 222, and is converted into a 0-10V signal for controlling the output value of the driving signal.
Referring to fig. 3, in some embodiments, the voltage dropping unit 230 includes: a voltage dropping module 231, a sixth resistor R6, and a seventh resistor R7. One end of the sixth resistor R6 is electrically connected to the first end of the voltage dropping module 231, and the other end of the sixth resistor R6 is electrically connected to the second end of the signal receiving unit 210; one end of the seventh resistor R7 is electrically connected to one end of the sixth resistor R6, and the other end of the seventh resistor R7 is electrically connected to the second end of the buck module 231 and grounded. In some specific embodiments, the voltage reducing module 231 further includes: a diode D8 and an inductor L4, wherein an anode of the diode D8 is electrically connected to the third terminal of the buck module 231, and a cathode of the diode D8 is electrically connected to the fourth terminal of the buck module 231; inductor L4 is electrically connected to diode D8.
Specifically, the voltage dropping module 231 includes: the voltage reduction chip U1 is provided with a voltage reduction chip U1 of MP2459J, the anode of the diode D2 is electrically connected with the fifth pin of the voltage reduction chip U1 through a capacitor C25, the cathode of the diode D8 is electrically connected with the sixth pin of the voltage reduction chip U1, and the sixth pin of the voltage reduction chip U1 is electrically connected with the connection node of the diode D8 and the inductor L4. The fifth pin is an input pin of the buck chip U1, the sixth pin is an output pin of the buck chip U1, the fifth pin is further connected with an external power supply, and when the sixth pin outputs reverse voltage, energy on the diode D8 can be directly transmitted to the inductor L4, so that the circuit works normally. One end of the sixth resistor R6 is electrically connected to the third pin of the buck chip U1, the other end of the sixth resistor R6 is electrically connected to the second pin of the chip CON1, and the other end of the seventh resistor R7 is electrically connected to the second pin of the buck chip U1 and is grounded. The third pin is a feedback pin of the buck chip U1, and the output of the buck chip U1 is adjusted to different voltage values by changing the resistance ratio of the seventh resistor R7 and the sixth resistor R6. In a specific embodiment, the voltage dropping unit U1 provides the signal receiving unit 210 with a supply voltage of 3.3V by changing the resistance ratio of the seventh resistor R7 and the sixth resistor R6. It can be understood that the first terminal of the buck module 231 is the third pin of the buck chip U1, the second terminal of the buck module 231 is the second pin of the buck chip U1, the third terminal of the buck module 231 is the fifth pin of the buck chip U1, and the fourth terminal of the buck module 231 is the sixth pin of the buck chip U1. As shown in fig. 2, the specific circuit structure of the voltage reduction unit 230 is that a capacitor C26 is connected in parallel with a capacitor C27, and is used for filtering low-frequency noise in the circuit; the capacitor C28, the capacitor C3 and the capacitor C29 are connected in parallel, the capacitor C2 is used for filtering high-frequency noise in the circuit, and the capacitor C28 and the capacitor C29 are used for filtering low-frequency noise in the circuit.
Referring to fig. 4, in some embodiments, the driving module 100 is electrically connected to the LED300, and the output end of the signal conversion unit 210 includes three interfaces, respectively: the driving module 100 comprises a VCC interface, a GND interface and a 0-10V interface, the three interfaces are correspondingly and electrically connected with the LED + interface, the 0-10V interface and the GND interface of the driving module 100, and the LED + interface and the LED-interface of the driving module 100 are also correspondingly and electrically connected with the LED + interface and the LED-interface of the LED. In some specific embodiments, the driving module 100 further includes an interface +12V, where the VCC interface of the signal receiving unit 210 is electrically connected to the +12V interface, and the LED + interface and the LED-interface of the driving module 100 are electrically connected to the LED + interface and the LED-interface of the LED300 correspondingly. The driving module 100 outputs driving signals with different values according to the 0-10V signal sent by the signal conversion unit 220, so as to implement dimming control on the LED 300.
In a specific embodiment, the signal receiving unit 210 receives a first control signal sent by a user, and processes the first control signal to output a second control signal. Specifically, the second control signal is a PWM signal, the signal conversion unit 220 receives the PWM signal and converts the PWM signal into a 0-10V signal, and the driving module 100 adjusts a value of the driving signal according to the 0-10V signal to implement dimming control on the LED 300.
In the embodiment of the application, the control module 200 and the driving module 100 are separately arranged, and when a user needs to use the control module 200 to intelligently control the LED300, the control module 200 is only required to be connected with the driving module 100. After the control module 200 is disconnected from the driving module 100, the LED300 can be operated normally to control the light emitting state of the LED300, thereby avoiding secondary development of the driving module 100 and reducing development cost and development difficulty.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. A drive control circuit, comprising:
the driving module is used for outputting a driving signal;
the control module is electrically connected with the driving module;
wherein the control module comprises: the signal receiving unit is used for receiving the first control signal and outputting a second control signal;
and one end of the signal conversion unit is electrically connected with the first end of the signal receiving unit, and the other end of the signal conversion unit is electrically connected with the driving module and is used for converting the second control signal and outputting a third control signal so as to control the output value of the driving signal.
2. The drive control circuit of claim 1, wherein the control module further comprises: a voltage reduction unit;
the voltage reduction unit is electrically connected with the second end of the signal receiving unit and used for providing power supply voltage.
3. The drive control circuit according to claim 2, wherein the signal conversion unit includes:
the integrating circuit is electrically connected with the signal receiving unit and used for converting the second control signal and outputting a fourth control signal;
the voltage amplifying circuit is electrically connected with the integrating circuit and is used for amplifying the fourth control signal to generate the third control signal;
and one end of the driving circuit is electrically connected with the voltage amplifying circuit, and the other end of the driving circuit is electrically connected with the driving module.
4. The drive control circuit according to claim 3, wherein the signal conversion unit further comprises: a filter circuit;
one end of the filter circuit is electrically connected with the integrating circuit, and the other end of the filter circuit is electrically connected with the voltage amplifying circuit.
5. The drive control circuit according to claim 4, wherein the integration circuit comprises:
one end of the first resistor is electrically connected with the first end of the signal receiving unit;
and one end of the first capacitor is electrically connected with the other end of the first resistor, and the other end of the first capacitor is grounded.
6. The drive control circuit according to claim 5, wherein the filter circuit comprises:
one end of the second resistor is electrically connected with the other end of the first resistor, and the other end of the second resistor is electrically connected with the voltage amplifying circuit;
and one end of the second capacitor is electrically connected with the other end of the first capacitor and grounded, and the other end of the second capacitor is electrically connected with the second resistor and a connecting node of the voltage amplifying circuit.
7. The drive control circuit according to claim 6, wherein the voltage amplification circuit comprises:
the first end of the operational amplifier is electrically connected with the other end of the second resistor;
a third resistor, one end of which is electrically connected with the second end of the operational amplifier;
one end of the fourth resistor is electrically connected with the third resistor, and the other end of the fourth resistor is grounded;
wherein a connection node of the third resistor and the fourth resistor is electrically connected to a third terminal of the operational amplifier.
8. The drive control circuit according to claim 7, wherein the drive circuit comprises:
the base electrode of the triode is electrically connected with the second end of the operational amplifier, and the collector electrode of the triode is electrically connected with the fourth end of the operational amplifier;
and one end of the fifth resistor is electrically connected with the emitting electrode of the triode, and the other end of the fifth resistor is electrically connected with the other end of the fourth resistor and grounded.
9. The drive control circuit according to claim 2, wherein the voltage-decreasing unit includes:
a voltage reduction module;
one end of the sixth resistor is electrically connected with the first end of the voltage reduction module, and the other end of the sixth resistor is electrically connected with the second end of the signal receiving unit;
and one end of the seventh resistor is electrically connected with one end of the sixth resistor, and the other end of the seventh resistor is electrically connected with the second end of the voltage reduction module and grounded.
10. The drive control circuit of claim 9, wherein the voltage-reducing module further comprises:
the anode of the diode is electrically connected with the third end of the voltage reduction module, and the cathode of the diode is electrically connected with the fourth end of the voltage reduction module;
an inductor electrically connected to the diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021516896.6U CN212660352U (en) | 2020-07-28 | 2020-07-28 | Drive control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021516896.6U CN212660352U (en) | 2020-07-28 | 2020-07-28 | Drive control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212660352U true CN212660352U (en) | 2021-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021516896.6U Active CN212660352U (en) | 2020-07-28 | 2020-07-28 | Drive control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212660352U (en) |
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2020
- 2020-07-28 CN CN202021516896.6U patent/CN212660352U/en active Active
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