CN214799978U - Colored lamp driving circuit and lamp - Google Patents
Colored lamp driving circuit and lamp Download PDFInfo
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- CN214799978U CN214799978U CN202120270840.5U CN202120270840U CN214799978U CN 214799978 U CN214799978 U CN 214799978U CN 202120270840 U CN202120270840 U CN 202120270840U CN 214799978 U CN214799978 U CN 214799978U
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Abstract
The utility model relates to the technical field of lamps and lanterns, a color lamp drive circuit and lamps and lanterns are provided, above-mentioned drive circuit includes: the LED lamp comprises a rectification filtering module, a constant current driving module and a plurality of paths of LED lamp strings; the constant current driving module comprises a plurality of constant current ends, and the number of the constant current ends is the same as the number of the LED lamp strings; the input end of the rectification filtering module is connected with an external power supply, and the output end of the rectification filtering module is connected with the anodes of the LED lamp strings in a one-to-one correspondence manner; the power supply end of the constant current driving module is connected with the output end of the rectifying and filtering module, the control end of the constant current driving module is used for receiving an external control signal, and each constant current end is respectively connected with the cathode of each path of LED lamp string; the constant current driving module is used for driving each path of LED lamp string to emit light in a constant current mode according to an external control signal. The utility model discloses a constant current drive module drives each way LED lamp cluster and gives out light, need not to set up multichannel drive circuit, and circuit structure is simple, and the device is few, and is with low costs, does benefit to the miniaturization.
Description
Technical Field
The utility model belongs to the technical field of lamps and lanterns, especially, relate to a color lamp drive circuit and lamps and lanterns.
Background
The LED bulb lamp as an energy-saving lamp gradually replaces the traditional incandescent bulb and is widely applied to the fields of civil illumination and commercial illumination. In order to meet the decoration effect of the LED bulb lamp, the colored bulb lamp is provided.
In the prior art, the color bulb lamp mostly adopts a plurality of paths of driving circuits to output PWM signals to respectively drive the LED lamp strings with various colors, so that the number of devices is large, the cost is high, and the miniaturization of the color bulb lamp is not facilitated.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a color lamp drive circuit and lamps and lanterns to color bulb lamp adopts multichannel drive circuit to drive the LED lamp cluster of each colour respectively among the solution prior art, and the device is in large quantity, with high costs, be unfavorable for miniaturized problem.
The embodiment of the utility model provides a first aspect provides a color lamp drive circuit, include: the LED lamp comprises a rectification filtering module, a constant current driving module and a plurality of paths of LED lamp strings; the constant current driving module comprises a plurality of constant current ends, and the number of the constant current ends is the same as the number of the LED lamp strings;
the input end of the rectification filtering module is connected with an external power supply, and the output end of the rectification filtering module is respectively connected with the anodes of the LED lamp strings;
the power supply end of the constant current driving module is connected with the output end of the rectifying and filtering module, the control end of the constant current driving module is used for receiving an external control signal, and each constant current end is connected with the cathode of each path of LED lamp string in a one-to-one correspondence manner;
the constant current driving module is used for driving each path of LED lamp string to emit light in a constant current mode according to an external control signal.
Optionally, the control end of the constant current driving module includes: the data control end and the clock control end; the constant current driving module includes: the constant current driving circuit comprises a constant current driving chip, a first resistor, a first capacitor and a second capacitor;
the power supply end of the constant current driving module is connected with the power supply end of the constant current driving module through a first resistor, the data signal end is respectively connected with the first end of the first capacitor and the data control end of the constant current driving module, the clock signal end is respectively connected with the first end of the second capacitor and the clock control end of the constant current driving module, each output end is connected with each constant current end of the constant current driving module in a one-to-one correspondence mode, and the grounding end is grounded;
the second end of the first capacitor and the second end of the second capacitor are both grounded.
Optionally, the color lamp driving circuit further comprises: a radio frequency module;
the input end of the radio frequency module is used for receiving an external control signal, and the output end of the radio frequency module is connected with the control end of the constant current driving module;
the radio frequency module is used for receiving an external control signal and sending the external control signal to the constant current driving module.
Optionally, the input end of the radio frequency module includes: a data input terminal and a clock input terminal; the radio frequency module includes: the radio frequency chip, the second resistor and the third resistor;
and the power supply end of the radio frequency chip is respectively connected with the internal power supply end, the first end of the second resistor and the first end of the third resistor, the data signal end is respectively connected with the second end of the second resistor and the data input end of the radio frequency module, the clock signal end is respectively connected with the second end of the third resistor and the clock input end of the radio frequency module, and the grounding end is grounded.
Optionally, the color lamp driving circuit further comprises: a voltage reduction module;
and the input end of the voltage reduction module is connected with the output end of the rectification filtering module, and the output end of the voltage reduction module is connected with an internal power supply end.
Optionally, the voltage reduction module includes: the voltage-reducing circuit comprises a voltage-reducing chip, a voltage-stabilizing chip, an inductor, a first diode, a second diode, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a fourth resistor and a fifth resistor;
the driving end of the voltage reduction chip is respectively connected with the cathode of the first diode and the first end of the third capacitor, the enabling end of the voltage reduction chip is connected with the first end of the fourth resistor, the power supply end of the voltage reduction chip is respectively connected with the cathode of the second diode, the first end of the fourth capacitor and the setting end of the voltage reduction chip, and the grounding end of the voltage reduction chip is respectively connected with the second end of the fourth capacitor, the second end of the fourth resistor, the first end of the inductor and the cathode of the third diode;
the anode of the second diode is respectively connected with the second end of the inductor, the first end of the fifth capacitor, the first end of the fifth resistor and the input end of the voltage stabilizing chip;
the output end of the voltage stabilizing chip is respectively connected with the first end of the sixth capacitor and the output end of the voltage reducing module, and the grounding end is grounded;
the second end of the third capacitor, the anode of the third diode, the second end of the fifth capacitor, the second end of the fifth resistor and the second end of the sixth capacitor are all grounded;
the anode of the first diode is connected with the input end of the voltage reduction module.
Optionally, the multi-path LED light string comprises: red LED lamp string, green LED lamp string and blue LED lamp string.
Optionally, the multi-path LED light string further comprises: cold white LED lamp string and warm white LED lamp string.
Optionally, the color temperature of the cold white LED lamp string is 6500K, and the color temperature of the warm white LED lamp string is 2700K.
The embodiment of the utility model provides a second aspect provides a lamp, include the embodiment of the utility model provides an arbitrary color lamp drive circuit that the first aspect provided.
The embodiment of the utility model provides a color lamp drive circuit, include: the LED lamp comprises a rectification filtering module, a constant current driving module and a plurality of paths of LED lamp strings; the constant current driving module comprises a plurality of constant current ends, and the number of the constant current ends is the same as the number of the LED lamp strings; the input end of the rectification filtering module is connected with an external power supply, and the output end of the rectification filtering module is respectively connected with the anodes of the LED lamp strings; the power supply end of the constant current driving module is connected with the output end of the rectifying and filtering module, the control end of the constant current driving module is used for receiving an external control signal, and each constant current end is connected with the cathode of each path of LED lamp string in a one-to-one correspondence manner; the constant current driving module is used for driving each path of LED lamp string to emit light in a constant current mode according to an external control signal. The embodiment of the utility model provides an adopt a constant current drive module can drive each way LED lamp cluster luminous, circuit structure is simple, and the device is few, and is with low costs, does benefit to the miniaturization.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic circuit diagram of a color lamp driving circuit according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a constant current driving module according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a radio frequency module according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a voltage reduction module according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a rectifying and filtering module according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Referring to fig. 1, an embodiment of the present invention provides a color lamp driving circuit, including: the LED lamp comprises a rectification filtering module 11, a constant current driving module 12 and a plurality of paths of LED lamp strings; the constant current driving module 12 comprises a plurality of constant current ends, and the number of the constant current ends is the same as the number of the LED lamp strings;
the input end of the rectification filter module 11 is used for being connected with an external power supply, and the output end of the rectification filter module is respectively connected with the anodes of the LED lamp strings;
the power supply end of the constant current driving module 12 is connected with the output end of the rectifying and filtering module 11, the control end is used for receiving external control signals, and each constant current end is connected with the cathode of each path of LED lamp string in a one-to-one correspondence manner;
the constant current driving module 12 is used for driving each path of LED string to emit light in a constant current according to an external control signal.
The embodiment of the utility model provides an in, constant current drive module 12 can be according to each way LED lamp cluster constant current of external control signal control and is luminous, need not to set up drive circuit respectively for each way LED lamp cluster, only can drive multichannel LED lamp cluster luminous through a constant current drive module 12, and circuit structure is simple, and the device is few, and is with low costs, does benefit to the miniaturization of lamps and lanterns. Each path of LED lamp string emits light in a constant current mode, PWM signals are not adopted for control, the color adjusting range is wider, and the color of the lamp is richer.
In some embodiments, referring to fig. 2, the control terminal of the constant current driving module 12 may include: the data control end and the clock control end; the constant current driving module 12 includes: the constant current driving circuit comprises a constant current driving chip U1, a first resistor R1, a first capacitor C1 and a second capacitor C2;
a power supply end of the constant current driving chip U1 is connected with a power supply end of the constant current driving module 12 through a first resistor R1, a data signal end is respectively connected with a first end of a first capacitor C1 and a data control end of the constant current driving module 12, a clock signal end is respectively connected with a first end of a second capacitor C2 and a clock control end of the constant current driving module 12, each output end is connected with each constant current end of the constant current driving module 12 in a one-to-one correspondence manner, and a ground end is grounded;
the second terminal of the first capacitor C1 and the second terminal of the second capacitor C2 are both grounded.
The embodiment of the utility model provides an in, external control signal can be the I2C signal, and constant current drive chip U1 corresponds the different electric current of output according to each output of I2C signal control to reach the multichannel control effect. For example, each output end of the constant current driving chip U1 can generate 256-level gray scale changes and drive the corresponding LED string to emit light, thereby implementing intelligent dimming.
In some embodiments, the color lamp driving circuit may further include: a radio frequency module 13;
the input end of the radio frequency module 13 is used for receiving an external control signal, and the output end of the radio frequency module is connected with the control end of the constant current driving module 12;
the radio frequency module 13 is configured to receive an external control signal and send the external control signal to the constant current driving module 12.
In some embodiments, referring to fig. 3, the input terminal of the rf module 13 may include: a data input terminal and a clock input terminal; the radio frequency module 13 includes: the radio frequency chip U2, the second resistor R2 and the third resistor R3;
a power source terminal of the rf chip U2 is connected to an internal power source terminal, a first terminal of the second resistor R2 and a first terminal of the third resistor R3, a data signal terminal is connected to a second terminal of the second resistor R2 and a data input terminal of the rf module 13, a clock signal terminal is connected to a second terminal of the third resistor R3 and a clock input terminal of the rf module 13, and a ground terminal is grounded.
The embodiment of the utility model provides an in the external control signal that external light modulator sent is received to radio frequency module 13 to send external control signal for constant current drive module 12, and then constant current drive module 12 adjusts luminance according to the user's demand.
In some embodiments, the color lamp driving circuit further includes: a voltage reduction module 14;
and the input end of the voltage reduction module 14 is connected with the output end of the rectification filter module 11, and the output end of the voltage reduction module is connected with an internal power supply end.
In some embodiments, referring to fig. 4, the voltage reduction module 14 includes: the voltage reduction circuit comprises a voltage reduction chip U3, a voltage stabilization chip U4, an inductor L1, a first diode D1, a second diode D2, a third diode D3, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a fourth resistor R4 and a fifth resistor R5;
a driving end of the voltage reduction chip U3 is connected with a cathode of the first diode D1 and a first end of the third capacitor C3 respectively, an enabling end of the voltage reduction chip U3 is connected with a first end of the fourth resistor R4, a power supply end of the voltage reduction chip U3 is connected with a cathode of the second diode D2, a first end of the fourth capacitor C4 and a setting end of the voltage reduction chip U3 respectively, and a ground end of the voltage reduction chip U3 is connected with a second end of the fourth capacitor C4, a second end of the fourth resistor R4, a first end of the inductor L1 and a cathode of the third diode D3 respectively;
an anode of the second diode D2 is connected to the second terminal of the inductor L1, the first terminal of the fifth capacitor C5, the first terminal of the fifth resistor R5, and the input terminal of the regulator chip U4, respectively;
the output end of the voltage stabilizing chip U4 is connected to the first end of the sixth capacitor C6 and the output end of the voltage step-down module 14, respectively, and the ground end is grounded;
the second end of the third capacitor C3, the anode of the third diode D3, the second end of the fifth capacitor C5, the second end of the fifth resistor R5 and the second end of the sixth capacitor C6 are all grounded;
the anode of the first diode D1 is connected to the input of the buck module 14.
The voltage reduction module 14 is used for supplying power to the radio frequency module 13.
In some embodiments, the voltage of the internal power supply terminal may be + 3.3V.
In some embodiments, referring to fig. 2, a multi-channel LED light string comprises: red LED lamp string R, green LED lamp string G and blue LED lamp string B.
In some embodiments, referring to fig. 2, the multi-channel LED light string further comprises: a cold white LED lamp string C and a warm white LED lamp string W.
In some embodiments, the color temperature of the cold white LED string C is 6500K, and the color temperature of the warm white LED string W is 2700K.
The embodiment of the utility model provides an in addition to set up the three-colour LED lamp cluster on red green blue basis, still be provided with cold white light LED lamp cluster C and warm white light LED lamp cluster W for the color of lamps and lanterns is abundanter, and visual effect is better, and user experience is better.
In some embodiments, the external power source is ac mains, and the rectification and filtering module 11 may include a rectification unit 111 and a filtering unit 112;
a rectifying unit 111 having an input terminal connected to an external power source and an output terminal connected to an input terminal of the filtering unit 112;
the output end of the filtering unit 112 is connected with the output end of the rectifying and filtering module 11.
Referring to fig. 5, a schematic circuit diagram of the rectifying unit 111 and the filtering unit 112 is not described herein.
Corresponding to any kind of color lamp drive circuit of above-mentioned, the embodiment of the utility model provides a lamps and lanterns is still provided, and these lamps and lanterns include any kind of color lamp drive circuit of above-mentioned, and have the advantage that above-mentioned color lamp drive circuit has, no longer describe herein.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A color lamp driving circuit, comprising: the LED lamp comprises a rectification filtering module, a constant current driving module and a plurality of paths of LED lamp strings; the constant current driving module comprises a plurality of constant current ends, and the number of the constant current ends is the same as the number of the LED lamp strings;
the input end of the rectification filter module is connected with an external power supply, and the output end of the rectification filter module is respectively connected with the anodes of the LED lamp strings;
the power supply end of the constant current driving module is connected with the output end of the rectifying and filtering module, the control end of the constant current driving module is used for receiving external control signals, and each constant current end is connected with the cathode of each path of LED lamp string in a one-to-one correspondence manner;
the constant current driving module is used for driving each path of LED lamp string to emit light in a constant current mode according to the external control signal.
2. The color lamp driving circuit according to claim 1, wherein the control terminal of the constant current driving module comprises: the data control end and the clock control end; the constant current driving module comprises: the constant current driving circuit comprises a constant current driving chip, a first resistor, a first capacitor and a second capacitor;
a power supply end of the constant current driving chip is connected with a power supply end of the constant current driving module through the first resistor, a data signal end is respectively connected with a first end of the first capacitor and a data control end of the constant current driving module, a clock signal end is respectively connected with a first end of the second capacitor and a clock control end of the constant current driving module, each output end is connected with each constant current end of the constant current driving module in a one-to-one correspondence manner, and a grounding end is grounded;
the second end of the first capacitor and the second end of the second capacitor are both grounded.
3. The color lamp driving circuit according to claim 1, further comprising: a radio frequency module;
the input end of the radio frequency module is used for receiving the external control signal, and the output end of the radio frequency module is connected with the control end of the constant current driving module;
the radio frequency module is used for receiving the external control signal and sending the external control signal to the constant current driving module.
4. The color lamp driving circuit according to claim 3, wherein the input terminal of the radio frequency module comprises: a data input terminal and a clock input terminal; the radio frequency module includes: the radio frequency chip, the second resistor and the third resistor;
the power supply end of the radio frequency chip is respectively connected with the internal power supply end, the first end of the second resistor and the first end of the third resistor, the data signal end is respectively connected with the second end of the second resistor and the data input end of the radio frequency module, the clock signal end is respectively connected with the second end of the third resistor and the clock input end of the radio frequency module, and the grounding end is grounded.
5. The color lamp driving circuit according to claim 4, further comprising: a voltage reduction module;
and the input end of the voltage reduction module is connected with the output end of the rectification and filtering module, and the output end of the voltage reduction module is connected with the internal power supply end.
6. The color lamp driving circuit according to claim 5, wherein the voltage-reducing module comprises: the voltage-reducing circuit comprises a voltage-reducing chip, a voltage-stabilizing chip, an inductor, a first diode, a second diode, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a fourth resistor and a fifth resistor;
a driving end of the voltage reduction chip is respectively connected with a cathode of the first diode and a first end of the third capacitor, an enabling end of the voltage reduction chip is connected with a first end of the fourth resistor, a power end of the voltage reduction chip is respectively connected with a cathode of the second diode, a first end of the fourth capacitor and a setting end of the voltage reduction chip, and a grounding end of the voltage reduction chip is respectively connected with a second end of the fourth capacitor, a second end of the fourth resistor, a first end of the inductor and a cathode of the third diode;
the anode of the second diode is respectively connected with the second end of the inductor, the first end of the fifth capacitor, the first end of the fifth resistor and the input end of the voltage stabilizing chip;
the output end of the voltage stabilizing chip is respectively connected with the first end of the sixth capacitor and the output end of the voltage reducing module, and the grounding end of the voltage stabilizing chip is grounded;
a second end of the third capacitor, an anode of the third diode, a second end of the fifth capacitor, a second end of the fifth resistor, and a second end of the sixth capacitor are all grounded;
and the anode of the first diode is connected with the input end of the voltage reduction module.
7. The color lamp driving circuit according to any one of claims 1 to 6, wherein the multiple LED lamp strings comprise: red LED lamp string, green LED lamp string and blue LED lamp string.
8. The color lamp driving circuit according to claim 7, wherein the multiple LED light strings further comprise: cold white LED lamp string and warm white LED lamp string.
9. The colored lamp driving circuit according to claim 8, wherein the color temperature of the cold white LED string is 6500K, and the color temperature of the warm white LED string is 2700K.
10. A luminaire comprising the colored lamp driving circuit according to any one of claims 1 to 9.
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| CN202120270840.5U CN214799978U (en) | 2021-01-29 | 2021-01-29 | Colored lamp driving circuit and lamp |
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| CN202120270840.5U CN214799978U (en) | 2021-01-29 | 2021-01-29 | Colored lamp driving circuit and lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444963A (en) * | 2019-08-30 | 2021-03-05 | 成都理想境界科技有限公司 | Light source driving circuit and display module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444963A (en) * | 2019-08-30 | 2021-03-05 | 成都理想境界科技有限公司 | Light source driving circuit and display module |
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