CN211406370U - LED color temperature regulating and controlling circuit and desk lamp thereof - Google Patents
LED color temperature regulating and controlling circuit and desk lamp thereof Download PDFInfo
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- CN211406370U CN211406370U CN201922480021.9U CN201922480021U CN211406370U CN 211406370 U CN211406370 U CN 211406370U CN 201922480021 U CN201922480021 U CN 201922480021U CN 211406370 U CN211406370 U CN 211406370U
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Abstract
The utility model relates to a circuit regulation and control field, more specifically relates to a LED colour temperature regulation and control circuit, including input interface, first luminescent circuit, second luminescent circuit, triode Q1, triode Q2 and the potentiometre of adjustable resistance; the access ends of the first light-emitting circuit and the second light-emitting circuit are respectively connected with the anode of the input interface; the output end of the first light-emitting circuit is connected with the collector of a triode Q1, and the output end of the second light-emitting circuit is connected with the collector of a triode Q2; the emitter of the triode Q1 and the emitter of the triode Q2 are connected with each other; the base electrode of the triode Q1 and the base electrode of the triode Q2 are respectively arranged on two sides of the potentiometer, the potentiometer is connected with the negative electrode of the input interface, and through the setting of the potentiometer capable of adjusting the resistance value of the resistor, when the resistance value of the potentiometer is adjusted, the on-off of the first light-emitting circuit and the second light-emitting circuit can be controlled, and the color temperature of the first light-emitting circuit and the color temperature of the second light-emitting circuit can be changed.
Description
Technical Field
The utility model relates to a circuit regulation and control field, more specifically relates to a LED colour temperature regulation and control circuit and desk lamp thereof.
Background
Table lamps, which can be used for lighting and also for creating an atmosphere, are now widely used in homes or in life.
Most of the color temperature designs of table lamps sold on the market are warm light, warm white light and white light, wherein the color temperature of the warm light is about 300K, the color temperature of the warm white light is about 600K, and the color temperature of the white light is about 900K.
Therefore, it is necessary to provide an LED color temperature adjusting circuit and a desk lamp thereof to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art at least one kind defect (not enough), provide a LED colour temperature regulation and control circuit and desk lamp thereof.
In order to solve the technical problem, the technical scheme of the utility model as follows: an LED color temperature regulation and control circuit comprises an input interface, a first light-emitting circuit, a second light-emitting circuit, a triode Q1, a triode Q2 and a potentiometer capable of adjusting resistance value of a resistor;
the access ends of the first light-emitting circuit and the second light-emitting circuit are respectively connected with the anode of the input interface;
the output end of the first light-emitting circuit is connected with the collector of a triode Q1, and the output end of the second light-emitting circuit is connected with the collector of a triode Q2;
the emitter of the triode Q1 and the emitter of the triode Q2 are mutually connected;
the base electrode of the triode Q1 and the base electrode of the triode Q2 are respectively arranged on two sides of the potentiometer, the potentiometer is connected with the negative electrode of the input interface, and through the setting of the potentiometer capable of adjusting the resistance value of the resistor, when the resistance value of the potentiometer is adjusted, the on-off of the first light-emitting circuit and the second light-emitting circuit can be controlled, the color temperatures of the first light-emitting circuit and the second light-emitting circuit can be changed, and the effect of displaying three different color temperatures is achieved.
Furthermore, the potentiometer comprises a variable resistor and a control switch, the base of the triode Q1 and the base of the triode Q2 are respectively arranged on two sides of the variable resistor, the variable resistor is connected with the negative electrode of the input interface through the control switch, the base of the triode Q1 and the base of the triode Q2 are respectively arranged on two sides of the variable resistor, and the on-off of the first light-emitting circuit and the second light-emitting circuit and the color temperature of the first light-emitting circuit and the color temperature of the second light-emitting circuit can be controlled and adjusted by adjusting the resistance value of the variable resistor, so that the potentiometer is simple and convenient.
Furthermore, the circuit also comprises a resistor R9 and a resistor R14, wherein the base of the transistor Q1 is connected with the variable resistor through the resistor R9, and the base of the transistor Q2 is connected with the variable resistor through the resistor R14.
Further, the first light-emitting circuit comprises a resistor R27 and a light-emitting diode L13, wherein one end of the resistor R27 is connected to the positive electrode of the input interface, and the other end is connected to the collector of the triode Q1 through the light-emitting diode L13.
Furthermore, the second light-emitting circuit comprises a resistor R37 and a light-emitting diode L23, wherein one end of the resistor R37 is connected to the positive electrode of the input interface, and the other end is connected to the collector of the transistor Q2 through the light-emitting diode L23.
Further, a diode D6 is connected to the anode of the input interface.
Further, the input interface circuit further comprises a resistor R10 and a resistor R12, one end of the resistor R10 is connected with the anode of the input interface, the other end of the resistor R9 is arranged between the resistor R9 and the variable resistor, one end of the resistor R12 is connected with the anode of the resistor R10, and the other end of the resistor R12 is arranged between the resistor R14 and the variable resistor.
Furthermore, the input interface is a DC interface, the voltage of the DC interface is 5V, wherein the input interface is a direct current interface, and in practical application, the power can be supplied by inputting direct current or by using a dry battery, which is within the protection scope of the present invention.
The utility model discloses in, still disclose a desk lamp, its application LED colour temperature regulation and control circuit.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:
the utility model discloses a LED colour temperature regulation and control circuit, through the setting of the potentiometre of adjustable resistance, when adjusting the resistance of potentiometre, can control the break-make of first luminescent circuit and second luminescent circuit, also can be used for changing the colour temperature of first luminescent circuit and second luminescent circuit, reaches the effect that shows three kinds of different colour temperatures.
Drawings
Fig. 1 is a schematic structural diagram of the middle LED color temperature control circuit of the present invention.
In the figure, 1 is an input interface, 2 is a first light emitting circuit, 3 is a second light emitting circuit, 4 is a triode, and 5 is a control switch.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1, an LED color temperature regulating circuit includes an input interface 1, a first light emitting circuit 2, a second light emitting circuit 3, a transistor Q1, a transistor Q2, and a potentiometer capable of adjusting resistance of a resistor; the access ends of the first light-emitting circuit and the second light-emitting circuit are respectively connected with the anode of the input interface; the output end of the first light-emitting circuit is connected with the collector of a triode Q1, and the output end of the second light-emitting circuit is connected with the collector of a triode Q2; the emitter of the triode Q1 and the emitter of the triode Q2 are connected with each other; the base electrode of the triode Q1 and the base electrode of the triode Q2 are respectively arranged on two sides of the potentiometer, the potentiometer is connected with the negative electrode of the input interface, and through the setting of the potentiometer with the resistance value adjustable, when the resistance value of the potentiometer is adjusted, the on-off of the first light-emitting circuit and the second light-emitting circuit can be controlled, the color temperature of the first light-emitting circuit and the color temperature of the second light-emitting circuit can be changed, and the effect of displaying three different color temperatures is achieved.
In the utility model, the potentiometer comprises a variable resistor 4 and a control switch 5, the base of a triode Q1 and the base of a triode Q2 are respectively arranged at two sides of the variable resistor, the variable resistor is connected with the negative pole of the input interface through the control switch, by respectively arranging the base of a triode Q1 and the base of a triode Q2 at two sides of the variable resistor, the on-off of a first light-emitting circuit and a second light-emitting circuit can be controlled and the color temperature of the first light-emitting circuit and the second light-emitting circuit can be adjusted by adjusting the resistance value of the variable resistor, which is simple and convenient, besides, the potentiometer also comprises a resistor R9 and a resistor R14, the base of a triode Q1 is connected with the variable resistor through a resistor R9, the base of a triode Q2 is connected with the variable resistor through a resistor R14, wherein, the first light-emitting circuit comprises a resistor R27 and a light-emitting diode L13, one end of the resistor R27, the other end is connected with the collector of the triode Q1 through a light emitting diode L13, and the second light emitting circuit comprises a resistor R37 and a light emitting diode L23, wherein one end of the resistor R37 is connected with the positive electrode of the input interface, and the other end is connected with the collector of the triode Q2 through a light emitting diode L23.
The utility model discloses in, be connected with diode D6 at the positive pole of input interface, in addition, still include resistance R10 and resistance R12, resistance R10 one end is connected with the positive pole of input interface, and the other end setting is between resistance R9 and variable resistance, resistance R12 one end is connected with resistance R10's positive pole, and the other end setting is between resistance R14 and variable resistance, and wherein, the input interface is the DC interface, and the voltage of DC interface is 5V, and wherein, the input interface is direct current's interface, and in practical application, can supply power through the mode of input direct current or utilizing the dry battery, and it is all within the protection scope of the utility model.
The utility model discloses in, still disclose a desk lamp, its application LED colour temperature regulation and control circuit.
When the LED lamp is used, after the control switch is switched on, the variable resistor is in a conducting state, when the variable resistor is at the rightmost side, the left resistance value of the variable resistor is 10K, the right resistance value of the variable resistor is 0R, current input by the DC interface is divided by the resistor R10 and the potentiometer 10K and then is in a conducting state through the resistor R9, the LED L13 is enabled to conduct lamp-on work, current input by the other DC interface is enabled to be in a cut-off state through the resistor R12 and the variable resistor 0R, and the LED L23 is enabled to conduct lamp-off work and displays white light color temperature.
When the variable resistor rotates, the resistance value on the left side of the variable resistor is gradually reduced from 10K, the resistance value on the right side of the variable resistor is gradually increased from 0R, the triode Q1 is continuously kept in a conducting state, the Q2 is also changed from an original cut-off state to a conducting state, and the light emitting diode L13 and the light emitting diode L23 are simultaneously lighted to display warm white color temperature.
When the variable resistor rotates to the tail end, the resistance value on the left side of the variable resistor becomes zero, the resistance value on the right side of the variable resistor becomes 10K, the triode Q1 is changed into a cut-off state from a conducting state, the triode Q2 also continuously maintains the conducting state, the light emitting diode L13 is turned off, the light emitting diode L23 is turned on, and warm light color temperature is displayed.
In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a LED colour temperature regulation and control circuit, includes input interface, first luminescent circuit, second luminescent circuit, triode Q1 and triode Q2, its characterized in that: the potentiometer can adjust the resistance value of the resistor;
the access ends of the first light-emitting circuit and the second light-emitting circuit are respectively connected with the anode of the input interface;
the output end of the first light-emitting circuit is connected with the collector of a triode Q1, and the output end of the second light-emitting circuit is connected with the collector of a triode Q2;
the emitter of the triode Q1 and the emitter of the triode Q2 are mutually connected;
the base electrode of the triode Q1 and the base electrode of the triode Q2 are respectively arranged on two sides of the potentiometer, and the potentiometer is connected with the negative electrode of the input interface.
2. The LED color temperature control circuit of claim 1, wherein the potentiometer comprises a variable resistor and a control switch, the base of the transistor Q1 and the base of the transistor Q2 are respectively disposed at two sides of the variable resistor, and the variable resistor is connected to the negative electrode of the input interface through the control switch.
3. The LED color temperature control circuit of claim 2, further comprising a resistor R9 and a resistor R14, wherein the base of the transistor Q1 is connected to the variable resistor through the resistor R9, and the base of the transistor Q2 is connected to the variable resistor through the resistor R14.
4. The LED color temperature control circuit of claim 1, wherein the first light emitting circuit comprises a resistor R27 and a light emitting diode L13, one end of the resistor R27 is connected to the positive electrode of the input interface, and the other end is connected to the collector of a transistor Q1 through the light emitting diode L13.
5. The LED color temperature control circuit of claim 1, wherein the second light emitting circuit comprises a resistor R37 and a light emitting diode L23, the resistor R37 is connected to the positive electrode of the input interface at one end, and is connected to the collector of a transistor Q2 through the light emitting diode L23 at the other end.
6. The LED color temperature regulating circuit according to claim 1, wherein a diode D6 is connected to the anode of the input interface.
7. The LED color temperature control circuit according to claim 3, further comprising a resistor R10 and a resistor R12, wherein one end of the resistor R10 is connected to the anode of the input interface, the other end of the resistor R9 is disposed between the resistor R9 and the variable resistor, one end of the resistor R12 is connected to the anode of the resistor R10, and the other end of the resistor R12 is disposed between the resistor R14 and the variable resistor.
8. The LED color temperature regulating circuit according to claim 1, wherein the input interface is a DC interface, and the voltage of the DC interface is 5V.
9. A desk lamp, wherein the LED color temperature control circuit of any one of claims 1-8 is applied to the desk lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480021.9U CN211406370U (en) | 2019-12-31 | 2019-12-31 | LED color temperature regulating and controlling circuit and desk lamp thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480021.9U CN211406370U (en) | 2019-12-31 | 2019-12-31 | LED color temperature regulating and controlling circuit and desk lamp thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211406370U true CN211406370U (en) | 2020-09-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922480021.9U Active CN211406370U (en) | 2019-12-31 | 2019-12-31 | LED color temperature regulating and controlling circuit and desk lamp thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211406370U (en) |
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2019
- 2019-12-31 CN CN201922480021.9U patent/CN211406370U/en active Active
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