Five-gear color temperature adjusting control circuit and lighting device

Abstract

The utility model provides a five-gear color temperature adjusting control circuit and a lighting device, the five-gear color temperature adjusting control circuit comprises a bridge rectifier module, a switch light changing module and a five-gear dial switch, one end of the bridge rectifier module is connected with a driving power supply, the other end of the bridge rectifier module is respectively connected with the switch light changing module and the five-gear dial switch, and the switch light changing module is connected with the five-gear dial switch. The other end of the switch dimming module is connected with an LED light source, and the other end of the five-gear dial switch is connected with the LED light source; and the five-gear dial switch is shifted to different gears, so that different color temperature adjusting functions are realized. By the adoption of the scheme, the power connection circuit is adjusted through the five-gear dial switch, so that different dimming and color adjusting functions can be achieved for different power sources on the basis of standardization of the LED light source, and the problem that large-batch unified production cannot be achieved due to the fact that the production and inventory site cost and the difference material preparation cost for switching LED lamps with single color temperature or different color temperatures are very high is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED lamp circuits, and particularly relates to a five - gear color temperature control circuit and a lighting device. Background Technique

[0002] At present, with the popularization of LED chip technology, its cost is getting lower and lower, and more and more lighting devices are composed of LED light strips or light boards. However, as for LED household lamps, there are still many problems. For example, for the needs of different single - color temperatures in different usage environments, or for a lamp to achieve different color temperature switches.

[0003] At the present stage, the market demand for LED lamps is still very large. What restricts the popularization of LED lamps is the price. The fundamental reason is that the production inventory site cost and the differential material preparation cost of single - color temperature or different - color - temperature - switching LED lamps are very high, resulting in the inability to produce in large quantities and uniformly. Currently, the market is divided according to color temperature. An LED lamp may have multiple color temperatures. In this way, when we produce, we need to prepare LED lamp beads of multiple color temperatures, and the factory's system will have multiple finished - product LED lamp material information. The workload of purchasing materials, etc. all needs to be multiplied several times. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a five - gear color temperature control circuit. By adjusting the power - on circuit through a five - gear DIP switch, different dimming and color - adjusting functions can be realized for different power supplies on the basis of the standardization of the LED light source, overcoming the problems that the production inventory site cost and the differential material preparation cost of single - color temperature or different - color - temperature - switching LED lamps are very high, resulting in the inability to produce in large quantities and uniformly.

[0005] In order to solve the above - mentioned technical problems, the utility model provides the following technical solutions:

[0006] A five - gear color temperature control circuit, which includes: a bridge rectification module, a switch dimming module, and a five - gear DIP switch. One end of the bridge rectification module is connected to a driving power supply, the other end of the bridge rectification module is respectively connected to the switch dimming module and the five - gear DIP switch, the other end of the switch dimming module is connected to an LED light source, and the other end of the five - gear DIP switch is connected to the LED light source;

[0007] Wherein, when the five - gear DIP switch is adjusted to the centralized control position, the driving power supply connected by the bridge rectification module is a constant - voltage intelligent power supply. The bridge rectification module is respectively connected to one end of the five - gear DIP switch and one end of the LED light source, and the other end of the five - gear DIP switch is connected to the other end of the LED light source. The color temperature and brightness of the LED light source are regulated through the constant - voltage intelligent power supply;

[0008] When the five - position DIP switch is adjusted to the variable - light position, the driving power supply connected to the bridge rectifier module is a constant - voltage power supply. The bridge rectifier module is respectively connected to one end of the five - position DIP switch and one end of the switch variable - light module. The other end of the switch variable - light module is connected to one end of the LED light source, and the other end of the five - position DIP switch is connected to the other end of the LED light source. The color temperature and brightness of the LED light source are regulated by the switch variable - light module;

[0009] When the five - position DIP switch is adjusted to the white - light position, the driving power supply connected to the bridge rectifier module is a constant - voltage power supply. The bridge rectifier module is respectively connected to one end of the five - position DIP switch and one end of the LED light source, and the other end of the five - position DIP switch is connected to the other end of the LED light source. The LED light source is regulated to be white by the constant - voltage power supply;

[0010] When the five - position DIP switch is adjusted to the neutral - light position, the driving power supply connected to the bridge rectifier module is a constant - voltage power supply. The bridge rectifier module is respectively connected to one end of the five - position DIP switch and one end of the switch variable - light module. The other end of the switch variable - light module is connected to one end of the LED light source, and the other end of the five - position DIP switch is connected to the other end of the LED light source. At this time, the switch variable - light module is in the conducting state, and the LED light source is regulated to be neutral - light by the constant - voltage power supply;

[0011] When the five - position DIP switch is adjusted to the warm - light position, the driving power supply connected to the bridge rectifier module is a constant - voltage power supply. The bridge rectifier module is respectively connected to one end of the five - position DIP switch and one end of the LED light source, and the other end of the five - position DIP switch is connected to the other end of the LED light source. The LED light source is regulated to be warm - light by the constant - voltage power supply.

[0012] As a preferred scheme of the five - position color - temperature control circuit, the switch variable - light module includes: a switch variable - light chip and a power - supply resistor R2 connected in series with the switch variable - light chip; one end of the power - supply resistor R2 is respectively connected to the V + pole of the bridge rectifier module and the OUTV + of the LED light source, the other end of the power - supply resistor R2 is connected to the first pin of the switch variable - light chip, the second pin of the switch variable - light chip is connected to the V - pole of the bridge rectifier module, the fourth pin of the switch variable - light chip is connected to the second pin of the five - position DIP switch, the sixth pin of the switch variable - light chip is connected to the eleventh pin of the five - position DIP switch, the third pin of the five - position DIP switch is connected to the OUTY - of the LED light source, and the tenth pin of the five - position DIP switch is connected to the OUTW - of the LED light source.

[0013] As a preferred solution of the five - level color temperature control circuit, the number of the switch dimming modules is 1 or more, and multiple switch dimming modules are connected in parallel with each other. Multiple switch dimming modules can play a role in increasing the current in the circuit.

[0014] As a preferred solution of the five - level color temperature control circuit, the switch dimming module includes: a power - off discharge circuit, a single - chip microcomputer, a single - chip microcomputer power supply circuit, and a switch on - off circuit; one end of the power - off discharge circuit is connected to the bridge rectification module, and the other end of the power - off discharge circuit is respectively connected to one end of the single - chip microcomputer power supply circuit and one end of the switch on - off circuit. The other end of the single - chip microcomputer power supply circuit is respectively connected to one end of the single - chip microcomputer and one end of the switch on - off circuit. The other end of the single - chip microcomputer is connected to one end of the switch on - off circuit. The other end of the switch on - off circuit is connected to one end of the five - position DIP switch, and the other end of the five - position DIP switch is connected to the LED light source.

[0015] As a preferred solution of the five - level color temperature control circuit, the power - off discharge circuit includes: resistor R2, resistor R10, resistor R11, resistor R12, capacitor C4, MOS transistor Q3, and MOS transistor Q4; one end of resistor R2 is respectively connected to V+ of the bridge rectification module, one end of resistor R11, one end of resistor R10, and the drain of MOS transistor Q4. The other end of resistor R2 is respectively connected to V - of the bridge rectification module, one end of resistor R12, the source of MOS transistor Q3, and the source of MOS transistor Q4. The other end of resistor R11 is respectively connected to the other end of resistor R12 and the gate of MOS transistor Q3. Capacitor C4 is connected in parallel with resistor R12. The drain of MOS transistor Q3 is respectively connected to the gate of MOS transistor Q4 and the other end of resistor R10. The source of MOS transistor Q4 is also connected to the ground.

[0016] As a preferred solution of the five - level color temperature control circuit, the single - chip microcomputer power supply circuit includes: resistor R1, capacitor C1, and diode DZ1; one end of resistor R1 is respectively connected to V+ of the bridge rectification module and V+ of the LED light source. The other end of resistor R1 is respectively connected to one end of capacitor C1 and the first pin of the single - chip microcomputer. The other end of capacitor C1 is respectively connected to V - of the bridge rectification module and one end of the switch on - off circuit. Diode DZ1 is connected in parallel with capacitor C1.

[0017] As a preferred embodiment of the five - stage color temperature control circuit, one end of the resistor R5 is connected to the third pin of the single - chip microcomputer and one end of the resistor R4 respectively. The other end of the resistor R5 is connected to the other end of the capacitor C1, V - of the bridge rectifier module, and one end of the resistor R7 respectively. The capacitor C2 is connected in parallel with the resistor R5. One end of the resistor R7 is also connected to the ground. The other end of the resistor R7 is connected to the fourth pin of the single - chip microcomputer and one end of the resistor R6 respectively. The capacitor C3 is connected in parallel with the resistor R7. The other end of the resistor R4 is connected to one end of the diode D1, the five - stage DIP switch, and the drain of the MOS transistor Q2 respectively. The other end of the resistor R6 is connected to one end of the diode D2, the five - stage DIP switch, and the drain of the MOS transistor Q1 respectively. The drain of the MOS transistor Q1 is also connected to the diode D1. The source of the MOS transistor Q1 is connected to one end of the resistor R8 and the ground respectively. The gate of the MOS transistor Q1 is connected to the other end of the resistor R8 and the seventh pin of the single - chip microcomputer respectively. The drain of the MOS transistor Q2 is also connected to the diode D2. The source of the MOS transistor Q2 is connected to one end of the resistor R9 and the ground respectively. The gate of the MOS transistor Q2 is connected to the other end of the resistor R9 and the sixth pin of the single - chip microcomputer respectively. The eighth pin of the single - chip microcomputer is connected to the ground. The other end of the diode D1 is connected to the five - stage DIP switch. The other end of the D2 is connected to the DIP switch.

[0018] As a preferred embodiment of the five - stage color temperature control circuit, the five - stage color temperature control circuit further includes: a discharge resistor R2 and a discharge resistor R3; one end of the discharge resistor R2 is connected to OUTW - of the LED light source, and the other end of the discharge resistor R2 is connected to OUTV + of the LED light source. One end of the discharge resistor R3 is connected to OUTV + of the LED light source, and the other end of the discharge resistor R3 is connected to OUTY - of the LED light source.

[0019] As a preferred embodiment of the five - stage color temperature control circuit, the output voltage of the driving power supply connected to the bridge rectifier module is 24 - 48V.

[0020] The present invention also provides an illumination device, which includes the five - stage color temperature control circuit as described in any one of the above.

[0021] The beneficial effects of the present invention are:

[0022] A five - gear color temperature control circuit is proposed in the present utility model, including: a bridge rectification module, a switch dimming module, and a five - gear DIP switch. One end of the bridge rectification module is connected to a driving power supply, and the other end of the bridge rectification module is respectively connected to the switch dimming module and the five - gear DIP switch. The other end of the switch dimming module is connected to an LED light source, and the other end of the five - gear DIP switch is connected to the LED light source. By toggling the five - gear DIP switch to different gears, different color temperature adjustment functions can be realized; by adjusting the power connection circuit through the five - gear DIP switch, different dimming and color temperature adjustment functions can be achieved for different power supplies on the basis of the standardization of the LED light source, overcoming the problems that the production inventory site cost and the differential stock - preparation cost of single - color temperature or different - color - temperature - switching LED lamps are very high, resulting in the inability to carry out large - batch unified production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following - described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and all of them belong to the protection scope of the present utility model, where:

[0024] Figure 1 is the circuit diagram of the five - gear color temperature control circuit proposed in Embodiment 1 of the present utility model;

[0025] Figure 2 is the circuit diagram of the five - gear color temperature control circuit proposed in Embodiment 2 of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0027] In the description of the present utility model, the term "a plurality of" means two or more, unless otherwise clearly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. Terms such as "installed", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can also be a direct connection or an indirect connection through a medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances; the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0028] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0029] At present, with the popularization of LED chip technology, its cost is getting lower and lower, and more and more lighting devices are composed of LED light strips or light boards. However, as for LED household lamps, there are still many problems. For example, for the needs of different monochromatic temperatures in different usage environments, or for a lamp to achieve different color temperature switches.

[0030] At the present stage, the market demand for LED lamps is still very large. What restricts the popularization of LED lamps is the price. The fundamental reason is that the production inventory site cost and the differential preparation cost of monochromatic temperature or different color temperature switching LED lamps are very high, resulting in the inability to produce in large quantities and uniformly. At present, the market is divided according to color temperature. An LED lamp may have multiple color temperatures. In this way, when we produce, we need to prepare LED lamp beads of multiple color temperatures, and the system of the factory will have material information of multiple finished LED lamps. The workload of purchasing materials and so on needs to be multiplied several times.

[0031] Embodiment 1

[0032] As Figure 1As shown in the figure, an embodiment of the present utility model provides a five - gear color temperature control circuit, which includes: a bridge rectifier module 110, a switch dimming module 120, and a five - gear DIP switch 130. One end of the bridge rectifier module 110 is connected to a driving power supply, the other end of the bridge rectifier module 110 is respectively connected to the switch dimming module 120 and the five - gear DIP switch 130. The other end of the switch dimming module 120 is connected to an LED light source, and the other end of the five - gear DIP switch 130 is connected to the LED light source;

[0033] Among them, when the five - gear DIP switch 130 is adjusted to the centralized control position, the driving power supply connected to the bridge rectifier module 110 is a constant - voltage intelligent power supply. The bridge rectifier module 110 is respectively connected to one end of the five - gear DIP switch 130 and one end of the LED light source, and the other end of the five - gear DIP switch 130 is connected to the other end of the LED light source. The color temperature and brightness of the LED light source are regulated by the constant - voltage intelligent power supply;

[0034] When the five - gear DIP switch 130 is adjusted to the dimming position, the driving power supply connected to the bridge rectifier module 110 is a constant - voltage power supply. The bridge rectifier module 110 is respectively connected to one end of the five - gear DIP switch 130 and one end of the switch dimming module 120. The other end of the switch dimming module 120 is connected to one end of the LED light source, and the other end of the five - gear DIP switch 130 is connected to the other end of the LED light source. The color temperature and brightness of the LED light source are regulated by the switch dimming module 120;

[0035] When the five - gear DIP switch 130 is adjusted to the white light position, the driving power supply connected to the bridge rectifier module 110 is a constant - voltage power supply. The bridge rectifier module 110 is respectively connected to one end of the five - gear DIP switch 130 and one end of the LED light source, and the other end of the five - gear DIP switch 130 is connected to the other end of the LED light source. The LED light source is regulated to be white by the constant - voltage power supply;

[0036] When the five - gear DIP switch 130 is adjusted to the neutral light position, the driving power supply connected to the bridge rectifier module 110 is a constant - voltage power supply. The bridge rectifier module 110 is respectively connected to one end of the five - gear DIP switch 130 and one end of the switch dimming module 120. The other end of the switch dimming module 120 is connected to one end of the LED light source, and the other end of the five - gear DIP switch 130 is connected to the other end of the LED light source. At this time, the switch dimming module 120 is in the conducting state, and the LED light source is regulated to be neutral light by the constant - voltage power supply;

[0037] When the five - position DIP switch 130 is adjusted to the warm - light position, the driving power supply connected to the bridge rectifier module 110 is a constant - voltage power supply. The bridge rectifier module 110 is respectively connected to one end of the five - position DIP switch 130 and one end of the LED light source. The other end of the five - position DIP switch 130 is connected to the other end of the LED light source. The LED light source is regulated to emit warm light through the constant - voltage power supply.

[0038] Specifically, the switch - variable - light module 120 includes: a switch - variable - light chip and a power - supply resistor R2 connected in series with the switch - variable - light chip. One end of the power - supply resistor R2 is respectively connected to the V + pole of the bridge rectifier module 110 and the OUTV + of the LED light source. The other end of the power - supply resistor R2 is connected to the first pin of the switch - variable - light chip. The second pin of the switch - variable - light chip is connected to the V - pole of the bridge rectifier module 110. The fourth pin of the switch - variable - light chip is connected to the second pin of the five - position DIP switch 130. The sixth pin of the switch - variable - light chip is connected to the eleventh pin of the five - position DIP switch 130. The third pin of the five - position DIP switch 130 is connected to the OUTY - of the LED light source. The tenth pin of the five - position DIP switch 130 is connected to the OUTW - of the LED light source.

[0039] Specifically, the number of the switch - variable - light modules 120 is 1 or more, and multiple switch - variable - light modules 120 are connected in parallel with each other. Multiple switch - variable - light modules 120 can play a role in increasing the current in the circuit.

[0040] Specifically, the output voltage of the driving power supply connected to the bridge rectifier module 110 is 24 - 48V.

[0041] Specifically, the working principle of the five - position color - temperature control circuit is as follows:

[0042] When the five - position DIP switch 130 is adjusted to the centralized - control position, the driving power supply connected to the bridge rectifier module 110 is a constant - voltage intelligent power supply. The first pin of the five - position DIP switch 130 is connected to the access point of the centralized - control V1. The second pin of the five - position DIP switch 130 is connected to the access point of the centralized - control V2. The third pin of the five - position DIP switch 130 is connected to the OUTY - of the LED light source. The tenth pin of the five - position DIP switch 130 is connected to the OUTW - of the LED light source. Among them, the switch - variable - light chip is not connected to the circuit, so as to regulate the color temperature and brightness of the LED light source through the constant - voltage intelligent power supply.

[0043] When the five - position DIP switch 130 is adjusted to the variable - light position, the driving power supply connected to the bridge rectifier module 110 is a constant - voltage power supply. One end of the power - supply resistor R2 is respectively connected to the V + pole of the bridge rectifier module 110 and the OUTV + of the LED light source. The other end of the power - supply resistor R2 is connected to the first pin of the switchable - light chip. The second pin of the switchable - light chip is connected to the V - pole of the bridge rectifier module 110. The fourth pin of the switchable - light chip is connected to the second pin of the five - position DIP switch 130. The sixth pin of the switchable - light chip is connected to the eleventh pin of the five - position DIP switch 130. The third pin of the five - position DIP switch 130 is connected to the OUTY - of the LED light source. The tenth pin of the five - position DIP switch 130 is connected to the OUTW - of the LED light source. Thus, the color temperature and brightness of the LED light source are regulated by the switchable - light module 120.

[0044] When the five - position DIP switch 130 is adjusted to the white - light position, the driving power supply connected to the bridge rectifier module 110 is a constant - voltage power supply. The V - of the bridge rectifier module 110 is respectively connected to the ninth pin of the five - position DIP switch 130 and the OUTW - of the LED light source. The third pin of the five - position DIP switch 130 is connected to the OUTY - of the LED light source. The tenth pin of the five - position DIP switch 130 is connected to the OUTW - of the LED light source. The V + of the bridge rectifier module 110 is connected to the OUTV + of the light source. The switchable - light chip is not connected to the circuit. The LED light source is regulated to be white by the constant - voltage power supply.

[0045] When the five - position DIP switch 130 is adjusted to the neutral - light position, the driving power supply connected to the bridge rectifier module 110 is a constant - voltage power supply. The V - of the bridge rectifier module 110 is connected to the fifth pin and the eighth pin of the five - position DIP switch 130. The OUTW - and OUTY - of the LED light source are connected to the V - of the bridge rectifier module 110. The V + of the bridge rectifier module 110 is connected to the OUTV + of the light source. The switchable - light chip is in the conducting state. Thus, the LED light source is regulated to be neutral - light by the constant - voltage power supply.

[0046] When the five - position DIP switch 130 is adjusted to the warm - light position, the driving power supply connected to the bridge rectifier module 110 is a constant - voltage power supply. The V - of the bridge rectifier module 110 is connected to the sixth pin of the five - position DIP switch 130. The V - of the bridge rectifier module 110 is connected to the OUTY - of the LED light source. The V + of the bridge rectifier module 110 is connected to the OUTV + of the light source. The switchable - light chip is not connected to the circuit. The LED light source is regulated to be warm - light by the constant - voltage power supply.

[0047] The present utility model further provides an illumination device, which includes the five - level color temperature control circuit described above.

[0048] Embodiment 2

[0049] As Figure 2 shown, the principle of this embodiment is the same as that of Embodiment 1. The difference between this embodiment and Embodiment 1 lies in the different switch dimming module 220. The switch dimming module 220 includes: a power - off discharge circuit 221, a single - chip microcomputer 222, a single - chip microcomputer power - supply circuit 223, and a switch on - off circuit 224;

[0050] One end of the power - off discharge circuit 221 is connected to the bridge rectification module, and the other end of the power - off discharge circuit 221 is respectively connected to one end of the single - chip microcomputer power - supply circuit 223 and one end of the switch on - off circuit 224. The other end of the single - chip microcomputer power - supply circuit 223 is respectively connected to one end of the single - chip microcomputer 222 and one end of the switch on - off circuit 224. The other end of the single - chip microcomputer 222 is connected to one end of the switch on - off circuit 224. The other end of the switch on - off circuit 224 is connected to one end of the five - level DIP switch 130, and the other end of the five - level DIP switch 130 is connected to the LED light source.

[0051] Specifically, the power - off discharge circuit 221 includes: resistor R2, resistor R10, resistor R11, resistor R12, capacitor C4, MOS transistor Q3, and MOS transistor Q4. One end of the resistor R2 is respectively connected to V + of the bridge rectification module, one end of the resistor R11, one end of the resistor R10, and the drain of the MOS transistor Q4. The other end of the resistor R2 is respectively connected to V - of the bridge rectification module, one end of the resistor R12, the source of the MOS transistor Q3, and the source of the MOS transistor Q4. The other end of the resistor R11 is respectively connected to the other end of the resistor R12 and the gate of the MOS transistor Q3. The capacitor C4 is connected in parallel with the resistor R12. The drain of the MOS transistor Q3 is respectively connected to the gate of the MOS transistor Q4 and the other end of the resistor R10. The source of the MOS transistor Q4 is also grounded.

[0052] Specifically, the single - chip microcomputer power - supply circuit 223 includes: resistor R1, capacitor C1, and diode DZ1. One end of the resistor R1 is respectively connected to V + of the bridge rectification module and V + of the LED light source. The other end of the resistor R1 is respectively connected to one end of the capacitor C1 and the first pin of the single - chip microcomputer 222. The other end of the capacitor C1 is respectively connected to V - of the bridge rectification module and one end of the switch on - off circuit 224. The diode DZ1 is connected in parallel with the capacitor C1.

[0053] Specifically, the switch-on and -off circuit 224 includes: resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, capacitor C2, capacitor C3, MOS transistor Q1, MOS transistor Q2, diode D1, and diode D2; one end of resistor R5 is connected to the third pin of the single-chip microcomputer 222 and one end of resistor R4 respectively, the other end of resistor R5 is connected to the other end of capacitor C1, V- of the bridge rectifier module, and one end of resistor R7 respectively, capacitor C2 is connected in parallel with resistor R5, one end of resistor R7 is connected to the ground, the other end of resistor R7 is connected to the fourth pin of the single-chip microcomputer 222 and one end of resistor R6 respectively, capacitor C3 is connected in parallel with resistor R7, the other end of resistor R4 is connected to one end of diode D1, the five-position DIP switch 130, and the drain of MOS transistor Q2 respectively, the other end of resistor R6 is connected to one end of diode D2, the five-position DIP switch 130, and the drain of MOS transistor Q1 respectively, the drain of MOS transistor Q1 is connected to diode D1, the source of MOS transistor Q1 is connected to one end of resistor R8 and the ground respectively, the gate of MOS transistor Q1 is connected to the other end of resistor R8 and the seventh pin of the single-chip microcomputer 222 respectively, the drain of MOS transistor Q2 is connected to diode D2, the source of MOS transistor Q2 is connected to one end of resistor R9 and the ground respectively, the gate of MOS transistor Q2 is connected to the other end of resistor R9 and the sixth pin of the single-chip microcomputer 222 respectively, the eighth pin of the single-chip microcomputer 222 is connected to the ground, the other end of diode D1 is connected to the five-position DIP switch 130, and the other end of D2 is connected to the DIP switch.

[0054] Specifically, the five-position color temperature control circuit further includes: discharge resistors R2 and R3; one end of discharge resistor R2 is connected to OUTW- of the LED light source, the other end of discharge resistor R2 is connected to OUTV+ of the LED light source, one end of discharge resistor R3 is connected to OUTV+ of the LED light source, and the other end of discharge resistor R3 is connected to OUTY- of the LED light source.

[0055] Specifically, the working principle of the five-position color temperature control circuit is as follows:

[0056] When the five - position DIP switch 230 is adjusted to the centralized control position, the driving power supply connected to the bridge rectifier module 210 is a constant - voltage intelligent power supply. The access point of the centralized control V1 is connected to the OUTW - of the LED light source through K1 of the five - position DIP switch 230, and the access point of the centralized control V2 is connected to the OUTY - of the LED light source through K1 of the five - position DIP switch 230. Wherein, the switch dimming module 220 is not connected to the circuit, so as to regulate the color temperature and brightness of the LED light source through the constant - voltage intelligent power supply.

[0057] When the five - position DIP switch 230 is adjusted to the dimming position, the driving power supply connected to the bridge rectifier module 210 is a constant - voltage power supply. The other end of the diode D1 is connected to the OUTW - of the LED light source through K2 of the five - position DIP switch 230, and the other end of the diode D2 is connected to the OUTY - of the LED light source through K2 of the five - position DIP switch 230, so as to regulate the color temperature and brightness of the LED light source through the switch dimming module 220.

[0058] When the five - position DIP switch 230 is adjusted to the white light position, the driving power supply connected to the bridge rectifier module 210 is a constant - voltage power supply. The V + of the bridge rectifier module is connected to the OUTV + of the LED light source, and the OUTW - of the LED light source is connected to the ground through K3 of the five - position DIP switch 230. The switch dimming module 220 is not connected to the circuit, and the LED light source is regulated to be white through the constant - voltage power supply.

[0059] When the five - position DIP switch 230 is adjusted to the neutral light position, the driving power supply connected to the bridge rectifier module 210 is a constant - voltage power supply. The other end of the resistor R6 is connected to the OUTW - of the LED light source through K4 of the five - position DIP switch 230, and the other end of the resistor R4 is connected to the OUTY - of the LED light source through K4 of the five - position DIP switch 230. The diode D1 and the diode D2 are in a short - circuit state, and the MOS transistor Q1 and the MOS transistor Q2 are turned on simultaneously, so as to regulate the LED light source to be neutral light through the constant - voltage power supply.

[0060] When the five - position DIP switch 230 is adjusted to the warm light position, the driving power supply connected to the bridge rectifier module 210 is a constant - voltage power supply. The V + of the bridge rectifier module is connected to the OUTV + of the LED light source, and the OUTY - of the LED light source is connected to the ground through K5 of the five - position DIP switch 230. The switch dimming module 220 is not connected to the circuit, and the LED light source is regulated to be warm light through the constant - voltage power supply.

[0061] The present utility model also provides a lighting device, which includes the five - position color temperature control circuit described above.

[0062] The above has described the present utility model in detail in conjunction with the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A five-speed color temperature control circuit, characterized in that: include: A bridge rectifier module, a switch dimming module, and a five-speed dial switch, wherein one end of the bridge rectifier module is connected to a driving power supply, the other end of the bridge rectifier module is respectively connected to the switch dimming module and the five-speed dial switch, the other end of the switch dimming module is connected to an LED light source, and the other end of the five-speed dial switch is connected to the LED light source; Among them, when the five-speed dial switch is adjusted to the gear centralized control position, the driving power supply connected to the bridge rectifier module is a constant voltage intelligent power supply, the bridge rectifier module is respectively connected to one end of the five-speed dial switch and one end of the LED light source, and the other end of the five-speed dial switch is connected to the other end of the LED light source, and the color temperature and brightness of the LED light source are regulated by the constant voltage intelligent power supply; When the five-speed dial switch is adjusted to the dimming position, the driving power supply connected to the bridge rectifier module is a constant voltage power supply, the bridge rectifier module is respectively connected to one end of the five-speed dial switch and one end of the switch dimming module, the other end of the switch dimming module is connected to one end of the LED light source, and the other end of the five-speed dial switch is connected to the other end of the LED light source, and the color temperature and brightness of the LED light source are regulated by the switch dimming module; When the five-speed dial switch is adjusted to the white light position, the driving power supply connected to the bridge rectifier module is a constant voltage power supply, the bridge rectifier module is respectively connected to one end of the five-speed dial switch and one end of the LED light source, the other end of the five-speed dial switch is connected to the other end of the LED light source, and the LED light source is regulated to be white by the constant voltage power supply; When the five-speed dial switch is adjusted to the neutral light position, the driving power supply connected to the bridge rectifier module is a constant voltage power supply, the bridge rectifier module is respectively connected to one end of the five-speed dial switch and one end of the switch dimming module, the other end of the switch dimming module is connected to one end of the LED light source, and the other end of the five-speed dial switch is connected to the other end of the LED light source. At this time, the switch dimming module is in a conducting state, and the LED light source is regulated to be neutral light by the constant voltage power supply; When the five-speed dial switch is adjusted to the warm light position, the driving power supply connected to the bridge rectifier module is a constant voltage power supply, the bridge rectifier module is respectively connected to one end of the five-speed dial switch and one end of the LED light source, the other end of the five-speed dial switch is connected to the other end of the LED light source, and the LED light source is regulated to emit warm light through the constant voltage power supply.

2. The five-speed color temperature control circuit according to claim 1, characterized in that: The switch dimming module includes: a switch dimming chip, and a power supply resistor R2 connected in series with the switch dimming chip; One end of the power supply resistor R2 is respectively connected to the V+ pole of the bridge rectifier module and the OUTV+ of the LED light source, the other end of the power supply resistor R2 is connected to the first pin of the switch dimming chip, the second pin of the switch dimming chip is connected to the V- pole of the bridge rectifier module, the fourth pin of the switch dimming chip is connected to the second pin of the five-speed dip switch, the sixth pin of the switch dimming chip is connected to the eleventh pin of the five-speed dip switch, the third pin of the five-speed dip switch is connected to OUTY- of the LED light source, and the tenth pin of the five-speed dip switch is connected to OUTW- of the LED light source.

3. The five-speed color temperature control circuit according to claim 2, characterized in that: The number of the switch dimming modules is one or more, and the multiple switch dimming modules are connected in parallel with each other. The multiple switch dimming modules can play a role in increasing the current in the circuit.

4. The five-speed color temperature control circuit according to claim 1, characterized in that: The switch dimming module includes: a power-off discharge circuit, a single-chip microcomputer, a single-chip microcomputer power supply circuit, and a switch on-off circuit; One end of the power-off discharge circuit is connected to the bridge rectifier module, the other end of the power-off discharge circuit is respectively connected to one end of the single-chip power supply circuit and one end of the switch on-off circuit, the other end of the single-chip power supply circuit is respectively connected to one end of the single-chip and one end of the switch on-off circuit, the other end of the single-chip is connected to one end of the switch on-off circuit, the other end of the switch on-off circuit is connected to one end of the five-speed dip switch, and the other end of the five-speed dip switch is connected to the LED light source.

5. The five-speed color temperature control circuit according to claim 4, characterized in that: The power-off discharge circuit includes: a resistor R2, a resistor R10, a resistor R11, a resistor R12, a capacitor C4, a MOS tube Q3, and a MOS tube Q4; One end of the resistor R2 is respectively connected to V+ of the bridge rectifier module, one end of the resistor R11, one end of the resistor R10 and the drain of the MOS tube Q4, the other end of the resistor R2 is respectively connected to V- of the bridge rectifier module, one end of the resistor R12, the source of the MOS tube Q3 and the source of the MOS tube Q4, the other end of the resistor R11 is respectively connected to the other end of the resistor R12 and the gate of the MOS tube Q3, the capacitor C4 is connected in parallel with the resistor R12, the drain of the MOS tube Q3 is respectively connected to the gate of the MOS tube Q4 and the other end of the resistor R10, and the source of the MOS tube Q4 is also connected to the ground.

6. The five-speed color temperature control circuit according to claim 5, characterized in that: The single chip computer power supply circuit comprises: a resistor R1, a capacitor C1 and a diode DZ1; One end of the resistor R1 is respectively connected to the V+ of the bridge rectifier module and the V+ of the LED light source, the other end of the resistor R1 is respectively connected to one end of the capacitor C1 and the first pin of the single-chip microcomputer, the other end of the capacitor C1 is respectively connected to the V- of the bridge rectifier module and one end of the switch on-off circuit, and the diode DZ1 is connected in parallel with the capacitor C1.

7. The five-speed color temperature control circuit according to claim 6, characterized in that: The switch on-off circuit includes: a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a capacitor C2, a capacitor C3, a MOS tube Q1, a MOS tube Q2, a diode D1 and a diode D2; One end of the resistor R5 is respectively connected to the third pin of the single-chip microcomputer and one end of the resistor R4, the other end of the resistor R5 is respectively connected to the other end of the capacitor C1, V- of the bridge rectifier module and one end of the resistor R7, the capacitor C2 is connected in parallel with the resistor R5, one end of the resistor R7 is connected to the ground, the other end of the resistor R7 is respectively connected to the fourth pin of the single-chip microcomputer and one end of the resistor R6, the capacitor C3 is connected in parallel with the resistor R7, the other end of the resistor R4 is respectively connected to one end of the diode D1, the five-speed dial switch and the drain of the MOS tube Q2, the other end of the resistor R6 is respectively connected to one end of the diode D2, the five-speed dial switch and the M The drain of the MOS tube Q1 is connected to the diode D1, the source of the MOS tube Q1 is respectively connected to one end of the resistor R8 and the ground, the gate of the MOS tube Q1 is respectively connected to the other end of the resistor R8 and the seventh pin of the single chip computer, the drain of the MOS tube Q2 is connected to the diode D2, the source of the MOS tube Q2 is respectively connected to one end of the resistor R9 and the ground, the gate of the MOS tube Q2 is respectively connected to the other end of the resistor R9 and the sixth pin of the single chip computer, the eighth pin of the single chip computer is connected to the ground, the other end of the diode D1 is connected to the five-speed dial switch, and the other end of D2 is connected to the dial switch.

8. The five-speed color temperature control circuit according to claim 4, characterized in that: The five-speed color temperature control circuit also includes: a discharge resistor R2 and a discharge resistor R3; One end of the discharge resistor R2 is connected to OUTW- of the LED light source, and the other end of the discharge resistor R2 is connected to OUTV+ of the LED light source. One end of the discharge resistor R3 is connected to OUTV+ of the LED light source, and the other end of the discharge resistor R3 is connected to OUTY- of the LED light source.

9. The five-speed color temperature control circuit according to claim 1, characterized in that: The output voltage of the driving power supply connected to the bridge rectifier module is 24-48V.

10. A lighting device, characterized in that: It comprises a five-speed color temperature control circuit as described in any one of claims 1 to 9.

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