CN215499657U - Multi-gear color temperature switching circuit and lamp - Google Patents
Multi-gear color temperature switching circuit and lamp Download PDFInfo
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- CN215499657U CN215499657U CN202122287101.XU CN202122287101U CN215499657U CN 215499657 U CN215499657 U CN 215499657U CN 202122287101 U CN202122287101 U CN 202122287101U CN 215499657 U CN215499657 U CN 215499657U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model provides a multi-gear color temperature switching circuit and a lamp, wherein the multi-gear color temperature switching circuit is electrically connected with a load, the load is connected between a power supply and the multi-gear color temperature switching circuit, the load comprises a first light source load and a second light source load, the multi-gear color temperature switching circuit comprises a first switch and a second switch, the anode of the first light source load is electrically connected with the power supply, the first switch is connected between the cathode of the first light source load and a ground wire, the anode of the second light source load is electrically connected with the power supply, and the second switch is connected between the cathode of the second light source load and the ground wire. The multi-gear color temperature switching circuit controls the light emission of the load circuit by switching on different switches, thereby realizing the conversion of different color temperatures and having lower cost.
Description
Technical Field
The utility model relates to the field of electronic circuits, in particular to a multi-gear color temperature switching circuit and a lamp.
Background
In the existing LED lighting product, in order to be suitable for different application scenes, a user wants to adjust the color temperature of the LED lighting product, most of the existing lamps are turned on or turned off by controlling the field effect transistor through the control chip to adjust the color temperature, and the cost of the control chip and the field effect transistor is relatively high, so that the cost of the LED lighting product is relatively high. Therefore, a new lamp is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, an object of the present invention is to provide a multi-level color temperature switching circuit and a lamp, which can provide color temperature lighting at different levels, facilitate users to adjust the color temperature of LED lighting products to be suitable for different application scenarios, and have low cost.
In order to achieve the above object, the present invention provides a multi-gear color temperature switching circuit, which is electrically connected to a load, wherein the load is connected between a power supply and the multi-gear color temperature switching circuit, the load includes a first light source load and a second light source load, the multi-gear color temperature switching circuit includes a first switch and a second switch, an anode of the first light source load is electrically connected to the power supply, a cathode of the first light source load is connected to a ground line, an anode of the second light source load is electrically connected to the power supply, and a cathode of the second light source load is connected to the ground line.
As a selectable scheme, the multi-shift color temperature switching circuit further includes at least one switching circuit, each switching circuit includes a first line, a second line, and a third line, a diode is disposed on the first line, another diode is disposed on the second line, a switch is disposed on the third line, an anode of the diode on the first line is electrically connected to a negative electrode of the first light source load, a cathode of the diode on the first line is electrically connected to a first end of the switch, an anode of the diode on the second line is electrically connected to a negative electrode of the second light source load, a cathode of the diode on the second line is electrically connected to the first end of the switch, and a second end of the switch is connected to a ground line.
Optionally, a circuit is connected in series on the first line; and/or a circuit is connected in series on the second line.
As an optional scheme, the multi-shift-stage color temperature switching circuit includes a first switching circuit, where the first switching circuit includes a first diode, a second diode, and a third switch, an anode of the first diode is electrically connected to a cathode of the first light source load, a cathode of the first diode is electrically connected to a first end of the third switch, an anode of the second diode is electrically connected to a cathode of the second light source load, a cathode of the second diode is electrically connected to a first end of the third switch, and a second end of the third switch is grounded.
As an optional scheme, the multi-gear color temperature switching circuit further includes a second switching circuit, where the second switching circuit includes a third diode, a fourth diode, a first resistor, and a fourth switch, the first resistor and the third diode are connected in series between a negative electrode of the first light source load and a first end of the fourth switch, an anode of the fourth diode is electrically connected to a negative electrode of the second light source load, a cathode of the fourth diode is electrically connected to a first end of the fourth switch, and a second end of the fourth switch is grounded.
As an optional scheme, a first end of the first resistor is electrically connected to a negative electrode of the first light source load, a second end of the first resistor is electrically connected to an anode of the third diode, and a cathode of the third diode is electrically connected to a first end of the fourth switch.
As an optional scheme, the multi-gear color temperature switching circuit further includes a third switching circuit, where the third switching circuit includes a fifth diode, a sixth diode, a second resistor, and a fifth switch, an anode of the fifth diode is electrically connected to a cathode of the first light source load, a cathode of the fifth diode is electrically connected to a first end of the fifth switch, the sixth diode and the second resistor are connected in series between the cathode of the second light source load and the first end of the fifth switch, and a second end of the fifth switch is grounded.
As an optional scheme, a first end of the second resistor is electrically connected to a negative electrode of the second light source load, a second end of the second resistor is electrically connected to an anode of the sixth diode, and a cathode of the sixth diode is electrically connected to a first end of the fifth switch.
Alternatively, when the multi-gear color temperature switching circuit works, only one switch is turned on.
The utility model also provides a lamp which comprises the multi-gear color temperature switching circuit.
Compared with the prior art, the multi-gear color temperature switching circuit conducts light emitting control on the load circuit by conducting different switches, thereby realizing conversion of different color temperatures, and the cost is lower by adopting a common switch.
The utility model is described in detail below with reference to the drawings and specific examples, but the utility model is not limited thereto.
Drawings
Fig. 1 is a schematic circuit diagram of a multi-tap color temperature switching circuit according to an embodiment of the present invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
As shown in fig. 1, fig. 1 is a schematic circuit diagram of a multi-step color temperature switching circuit according to an embodiment of the utility model. The multi-gear color temperature switching circuit 100 is electrically connected with a load, the load is connected between a power supply and the multi-gear color temperature switching circuit 100, the load comprises a first light source load LED1 and a second light source load LED2, the multi-gear color temperature switching circuit 100 comprises a first switch K1 and a second switch K2, the anode of the first light source load LED1 is electrically connected with the power supply, a first switch K1 is connected between the cathode of the first light source load LED1 and the ground wire, the anode of the second light source load LED2 is electrically connected with the power supply, a second switch K2 is connected between the cathode of the second light source load LED2 and the ground wire, and when the multi-gear color temperature switching circuit 100 works, only one of the first switch K1 and the second switch K2 is switched on. In this embodiment, the power supply is a constant current source, and the color temperature of the first light source load LED1 is different from that of the second light source load LED2, where the color temperature of the first light source load is, for example, 3000K, and the color temperature of the second light source load is, for example, 5000K, when the first switch K1 is closed, the line of the first light source load LED1 is turned on, at this time, the color temperature is 3000K, and when the second switch K2 is closed, the line of the second light source load LED2 is turned on, at this time, the color temperature is 5000K.
In the present invention, the multi-gear color temperature switching circuit 100 includes at least one switching circuit, each switching circuit includes a first circuit, a second circuit and a third circuit, a diode is disposed on the first circuit, another diode is disposed on the second circuit, a switch is disposed on the third circuit, an anode of the diode on the first circuit is electrically connected to a cathode of the first light source load LED1, a cathode of the diode on the first circuit is electrically connected to a first end of the switch, an anode of the diode on the second circuit is electrically connected to a cathode of the second light source load LED2, a cathode of the diode on the second circuit is electrically connected to the first end of the switch, and a second end of the switch is connected to a ground. In practical application, the switching circuit can also be used for adjusting the color temperature by connecting resistors in series on the first line and/or the second line.
The present invention may include any one, any two, or all three of the first switching circuit, the second switching circuit, and the third switching circuit described below.
A first diode D1 is disposed on a first line of the first switching circuit, a second diode D2 is disposed on a second line, a third switch K3 is disposed on a third line, an anode of the first diode D1 is electrically connected to a cathode of the first light source load LED1, a cathode of the first diode D1 is electrically connected to a first end of the third switch K3, an anode of the second diode D2 is electrically connected to a cathode of the second light source load LED2, a cathode of the second diode D2 is electrically connected to a first end of the third switch K3, and a second end of the third switch K3 is grounded. The parameters of the first diode D1 and the second diode D2 may be set to be the same, so when the third switch K3 is closed, the first line and the second line are both turned on, and the currents through the two loops are equal, and the color temperature of the whole lamp is expressed as (3000K +5000K)/2 ═ 4000K.
A third diode D3 and a first resistor R1 are disposed on a first line of the second switching circuit, a fourth diode D4 is disposed on a second line, a fourth switch K4 is disposed on a third line, the first resistor R1 and the third diode D3 are connected in series between a negative electrode of the first light source load LED1 and a first end of the fourth switch K4, a first end of the first resistor R1 is electrically connected with a negative electrode of the first light source load LED1, a second end of the first resistor R1 is electrically connected with an anode of the third diode D3, a cathode of the third diode D3 is electrically connected with a first end of the fourth switch K4, an anode of the fourth diode D4 is electrically connected with a negative electrode of the second light source load LED2, a cathode of the fourth diode D4 is electrically connected with a first end of the fourth switch K4, and a second end of the fourth switch K4 is grounded. The parameters of the third diode D3 and the fourth diode D4 may be set to be the same, such that when the fourth switch K4 is closed, the first light source load LED1 is conducted with the third diode D3 through the first resistor R1, the second light source load LED2 is conducted through the fourth diode D4, the color temperature is determined by the first resistor R1, when the resistance value of the first resistor R1 is smaller, the color temperature is closer to 4000K, when the resistance value of the first resistor R1 is larger, the current passing through the first light source load LED1 is smaller, the color temperature is closer to 5000K, and when the resistance value of the first resistor R1 is 100 ohms, the color temperature of the whole lamp is 4500K.
A fifth diode D5 is disposed on a first line of the third switching circuit, a sixth diode D6 and a second resistor R2 are disposed on a second line, a fifth switch K5 is disposed on a third line, an anode of the fifth diode D5 is electrically connected to a cathode of the first light source load LED1, a cathode of the fifth diode D5 is electrically connected to a first end of the fifth switch K5, a sixth diode D6 and a second resistor R2 are connected in series between a cathode of the second light source load LED2 and the fifth switch K5, a first end of the second resistor R2 is electrically connected to a cathode of the second light source load LED2, a second end of the second resistor R2 is electrically connected to an anode of the sixth diode D6, a cathode of the sixth diode D6 is electrically connected to a first end of the fifth switch K5, a second end of the fifth switch K5 is grounded, wherein parameters of the fifth diode D365 and the sixth diode D6 are set to be the same, and when the fifth switch K5857324 is closed, the first light source load LED1 is turned on by the fifth diode D5, the second light source load LED2 is turned on by the second resistor R2 and the sixth diode D6, the color temperature is determined by the second resistor R2, the smaller the resistance value of the second resistor R2 is, the closer the color temperature is to 4000K, and the larger the resistance value of the second resistor R2 is, the smaller the current passing through the second light source load LED2 is, the closer the color temperature is to 3000K. When the resistance value of the second resistor R2 is 100 ohms, the color temperature of the whole lamp is 3500K.
In practical use, only one of the first switch K1, the second switch K2, the third switch K3, the fourth switch K4 and the fifth switch K5 is turned on, and the color temperature of the lamp is different after each switch is turned on, that is, the color temperature of each gear is different, so that the color temperature of five gears is different. If more gears need to be realized, only the switching circuit needs to be added, and the resistors on the switching circuit can be set to different resistance values to realize different color temperatures.
The utility model further provides a lamp comprising the multi-gear color temperature switching circuit 100.
In summary, the multi-tap color temperature switching circuit 100 of the present invention controls the light emission of the load circuit by turning on different switches, so as to realize the conversion of different color temperatures, and the cost is low by using a common switch.
The above detailed description of the preferred embodiments is intended to more clearly illustrate the features and spirit of the present invention, and is not intended to limit the scope of the present invention by the preferred embodiments disclosed above. On the contrary, it is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims. The scope of the utility model is therefore to be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the scope of the appended claims.
Claims (10)
1. The utility model provides a many gears colour temperature switching circuit, with load electric connection, the load connect the power with between the many gears colour temperature switching circuit, its characterized in that, the load includes first light source load and second light source load, many gears colour temperature switching circuit includes first switch and second switch, the positive pole of first light source load with power electric connection, be connected with between the negative pole of first light source load and the ground wire first switch, the positive pole of second light source load with power electric connection, be connected with between the negative pole of second light source load and the ground wire second switch.
2. The multi-range color temperature switching circuit according to claim 1, further comprising at least one switching circuit, each switching circuit comprising a first circuit, a second circuit and a third circuit, wherein the first circuit is provided with a diode, the second circuit is provided with another diode, the third circuit is provided with a switch, an anode of the diode in the first circuit is electrically connected to a cathode of the first light source load, a cathode of the diode in the first circuit is electrically connected to a first terminal of the switch, an anode of the diode in the second circuit is electrically connected to a cathode of the second light source load, a cathode of the diode in the second circuit is electrically connected to the first terminal of the switch, and a second terminal of the switch is connected to a ground line.
3. The multi-tap color temperature switching circuit according to claim 2, wherein a circuit is connected in series to the first line; and/or a circuit is connected in series on the second line.
4. The multi-range color temperature switching circuit of claim 2, wherein the multi-range color temperature switching circuit comprises a first switching circuit, the first switching circuit comprises a first diode, a second diode and a third switch, an anode of the first diode is electrically connected to a cathode of the first light source load, a cathode of the first diode is electrically connected to a first terminal of the third switch, an anode of the second diode is electrically connected to a cathode of the second light source load, a cathode of the second diode is electrically connected to a first terminal of the third switch, and a second terminal of the third switch is grounded.
5. The multi-range color temperature switching circuit according to claim 2, further comprising a second switching circuit, wherein the second switching circuit comprises a third diode, a fourth diode, a first resistor and a fourth switch, the first resistor and the third diode are connected in series between a negative terminal of the first light source load and a first terminal of the fourth switch, an anode of the fourth diode is electrically connected to a negative terminal of the second light source load, a cathode of the fourth diode is electrically connected to a first terminal of the fourth switch, and a second terminal of the fourth switch is grounded.
6. The multi-tap color temperature switching circuit according to claim 5, wherein a first terminal of the first resistor is electrically connected to a negative terminal of the first light source load, a second terminal of the first resistor is electrically connected to an anode of the third diode, and a cathode of the third diode is electrically connected to a first terminal of the fourth switch.
7. The multi-range color temperature switching circuit according to claim 2, further comprising a third switching circuit, wherein the third switching circuit comprises a fifth diode, a sixth diode, a second resistor and a fifth switch, an anode of the fifth diode is electrically connected to a cathode of the first light source load, a cathode of the fifth diode is electrically connected to a first terminal of the fifth switch, the sixth diode and the second resistor are connected in series between the cathode of the second light source load and the first terminal of the fifth switch, and a second terminal of the fifth switch is grounded.
8. The multi-tap color temperature switching circuit according to claim 7, wherein a first terminal of the second resistor is electrically connected to a negative terminal of the second light source load, a second terminal of the second resistor is electrically connected to an anode of the sixth diode, and a cathode of the sixth diode is electrically connected to a first terminal of the fifth switch.
9. The multi-tap color temperature switching circuit of claim 1, 2, 5 or 7 wherein only one switch is turned on when the multi-tap color temperature switching circuit is operating.
10. A luminaire comprising the multi-tap color temperature switching circuit of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122287101.XU CN215499657U (en) | 2021-09-22 | 2021-09-22 | Multi-gear color temperature switching circuit and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122287101.XU CN215499657U (en) | 2021-09-22 | 2021-09-22 | Multi-gear color temperature switching circuit and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215499657U true CN215499657U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122287101.XU Active CN215499657U (en) | 2021-09-22 | 2021-09-22 | Multi-gear color temperature switching circuit and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215499657U (en) |
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2021
- 2021-09-22 CN CN202122287101.XU patent/CN215499657U/en active Active
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