CN215991282U

CN215991282U - Color temperature variable drive circuit

Info

Publication number: CN215991282U
Application number: CN202122019913.6U
Authority: CN
Inventors: 饶亚; 吴勇杰; 钟晓燕
Original assignee: Xiamen Topstar Lighting Co Ltd
Current assignee: Xiamen Topstar Lighting Co Ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-03-08
Anticipated expiration: 2031-08-25

Abstract

The utility model relates to the technical field of color temperature switching, in particular to a color temperature variable driving circuit, which comprises a constant voltage output module, a ball switch control output module, a toggle switch module, an LED linear driving module, a first LED light source filtering module and a second LED light source filtering module, wherein the ball switch control output module is respectively and electrically connected with the constant voltage output module, the toggle switch module and the LED linear driving module, the LED linear driving module is respectively and electrically connected with the toggle switch module, the first LED light source filtering module and the second LED light source filtering module, the constant voltage output module is electrically connected with the toggle switch module, through the matching of the constant voltage output module, the ball switch control output module, the toggle switch module, the LED linear driving module, the first LED light source filtering module and the second LED light source filtering module, therefore, the switching of fixed color temperature can be realized, and the switching of different color temperatures can also be realized by turning the whole lamp.

Description

Color temperature variable drive circuit

Technical Field

The utility model relates to the technical field of color temperature switching, in particular to a color temperature variable driving circuit.

Background

The existing product can only realize the switching of two fixed color temperatures through a switch, so that a driving circuit which can realize the switching of the fixed color temperature and can also realize the switching of different color temperatures by turning over the whole lamp is particularly needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the technical problems to be solved by the utility model are as follows: the color temperature variable driving circuit can realize the switching of fixed color temperature and can also realize the switching of different color temperatures by turning over the whole lamp.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a variable colour temperature drive circuit, includes constant voltage output module, ball switch control output module, toggle switch module, the linear drive module of LED, first LED light source filter module and second LED light source filter module, ball switch control output module is connected with constant voltage output module, toggle switch module and the linear drive module electricity of LED respectively, the linear drive module of LED is connected with toggle switch module, first LED light source filter module and second LED light source filter module electricity respectively, constant voltage output module is connected with toggle switch module electricity.

Further, the ball switch control output module comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a voltage regulator ZD1, a voltage regulator ZD2, a ball switch S1 and a ball switch S2, one end of the resistor R1 is electrically connected with the constant voltage output module, one end of the resistor R4 and the LED linear driving module respectively, the other end of the resistor R1 is electrically connected with one end of the resistor R2, the other end of the resistor R2 is electrically connected with the cathode of the voltage regulator ZD1, one end of the capacitor C1, one end of the resistor R3, one end of the ball switch S1 and the toggle switch module respectively, the anode of the voltage regulator R1 is electrically connected with the cathode of the constant voltage output module, the other end of the capacitor C1, the other end of the resistor R3 and the other end of the ball switch S1 respectively, the other end of the resistor R4 is electrically connected with one end of the resistor R5, and the cathode of the resistor ZD 733 of the voltage regulator ZD 5 is electrically connected with the cathode of the voltage regulator zb 2 respectively, One end of a capacitor C2, one end of a resistor R6 and one end of a ball switch S2 are electrically connected with the toggle switch module, and the anode of the voltage regulator tube ZD2 is electrically connected with the other end of the capacitor C2, the other end of the resistor R6 and the other end of the ball switch S2 respectively.

Further, the LED linear driving module includes a resistor R7, a resistor R8, a resistor R9, a diode D1, and a chip IC, a first pin of the chip IC is electrically connected to the toggle switch module, a second pin of the chip IC is electrically connected to one end of the resistor R7, a third pin of the chip IC is electrically connected to the toggle switch module, a fourth pin of the chip IC is electrically connected to one end of the resistor R8, the other end of the resistor R8 is electrically connected to the other end of the resistor R7, the other ends of the resistor R8 and the resistor R7 are both grounded, a fifth pin of the chip IC is electrically connected to the second LED light source filtering module, a sixth pin of the chip IC is electrically connected to the first LED light source filtering module, an eighth pin of the chip IC is electrically connected to one end of the resistor R9, and the other end of the resistor R9 is electrically connected to a cathode of the diode D1, the first LED light source filtering module and the second LED light source filtering module, and the anode of the diode D1 is electrically connected with the ball switch control output module.

Further, the constant voltage output module comprises a resistor R12, a resistor R13, a resistor R14, a capacitor C13, an electrolytic capacitor E1 and a voltage regulator ZD3, one end of the resistor R12 is respectively and electrically connected with one end of the electrolytic capacitor E1, the ball switch control output module and the LED linear driving module, the other end of the resistor R12 is electrically connected with one end of a resistor R13, the other end of the resistor R13 is respectively and electrically connected with the cathode of the voltage regulator tube ZD3, one end of the capacitor C13, one end of the resistor R14 and the toggle switch module, the anode of the voltage regulator tube ZD3 is respectively and electrically connected with the other end of the capacitor C13 and the other end of the resistor R14, the anode of the voltage regulator tube ZD3, the other end of the capacitor C13 and the other end of the resistor R14 are all grounded, the other end of the electrolytic capacitor E1 is electrically connected with the ball switch control output module, and the other end of the electrolytic capacitor E1 and the ball switch control output module are both grounded.

Further, the first LED light source filter module includes a resistor R10, an electrolytic capacitor E2 and a light emitting diode LED1, one end of the electrolytic capacitor E2 is electrically connected to one end of the resistor R10, the LED linear driving module, the anode of the light emitting diode LED1 and the second LED light source filter module, and the other end of the electrolytic capacitor E2 is electrically connected to the LED linear driving module, the other end of the resistor R10 and the cathode of the light emitting diode LED 1.

Further, the second LED light source filter module includes a resistor R11, an electrolytic capacitor E3 and a light emitting diode LED2, one end of the electrolytic capacitor E3 is electrically connected to one end of the resistor R11, the LED linear driving module, the anode of the light emitting diode LED2 and the first LED light source filter module, and the other end of the electrolytic capacitor E3 is electrically connected to the LED linear driving module, the other end of the resistor R11 and the cathode of the light emitting diode LED 2.

Furthermore, the constant-voltage power supply further comprises an overcurrent protection module, an overvoltage protection module and a rectification and filtering module, wherein the overvoltage protection module is electrically connected with the overcurrent protection module and the rectification and filtering module respectively, and the rectification and filtering module is electrically connected with the constant-voltage output module.

The utility model has the beneficial effects that:

through setting up the constant voltage output module, can obtain a more stable constant voltage value and export for ball on-off control output module and toggle switch module, toggle switch module is used for controlling the voltage signal who gives LED linear drive module, be used for controlling the light source colour temperature and the output current size of whole drive output, light source colour temperature lights in order to control which way, this scheme is through constant voltage output module, ball on-off control output module, toggle switch module, LED linear drive module, cooperation between first LED light source filter module and the second LED light source filter module, make the switching that both can realize fixed colour temperature, also can realize the switching of different colour temperatures through the whole lamp of upset.

Drawings

FIG. 1 is a connection block diagram of a color temperature variable driving circuit according to the present invention;

FIG. 2 is a schematic circuit diagram of a color temperature variable driving circuit according to the present invention;

description of reference numerals:

1. a constant voltage output module; 2. the ball switch controls the output module; 3. a toggle switch module; 4. an LED linear driving module; 5. a first LED light source filtering module; 6. a second LED light source filtering module; 7. an overcurrent protection module; 8. an overvoltage protection module; 9. and a rectification filtering module.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1, the technical solution provided by the present invention:

From the above description, the beneficial effects of the present invention are:

It can be known from the above description that a resistor R1, a resistor R2 and a resistor R3 are arranged to be connected in series for voltage division, and a resistor R4, a resistor R5 and a resistor R6 are arranged to be connected in series for voltage division, a capacitor C1 and a capacitor C2 are respectively arranged at two ends of the resistor R3 and the resistor R6, so that voltages at two ends of the resistor R3 and the resistor R6 are more stable, meanwhile, the voltage regulator ZD1 and the voltage regulator ZD2 play a protection role, and a ball switch S1 and a ball switch S2 are additionally arranged on the two paths for controlling voltage values at two ends of the resistor R3 and the resistor R6, and the two ball switches are located on opposite surfaces, so that the voltages at two ends of the resistor R3 and the resistor R6 have one path and the other path has no ground voltage.

It can be known from the above description that the eighth pin of the chip IC is a power input port of the chip, and after the normal mains supply is connected and subjected to overcurrent and overvoltage protection, the power is rectified by the bridge rectifier, and the first pin and the third pin of the chip IC are connected in series to divide voltage through the resistor R9, so that the chip IC is turned on to work, the first pin and the third pin of the chip IC are the first signal input port and the second signal input port, and the fifth pin and the sixth pin of the chip IC are in a conducting or turning-off state when the toggle switch module is connected to obtain a corresponding voltage value, and the second pin and the fourth pin of the chip IC are connected in series to corresponding resistors to determine the magnitude of the output current of the fifth pin and the sixth pin of the chip IC.

From the above description, it can be known that the normal mains supply is rectified by the bridge rectifier after being subjected to overcurrent and overvoltage protection, and is divided by the resistor R12, the resistor R13 and the resistor R14 in series, and the capacitor C13 is arranged at two ends of the resistor R14, so that the voltage at two ends of the resistor R14 is more stable, and meanwhile, the voltage regulator tube ZD3 plays a protection role, so that a constant voltage value can be obtained by toggling the switch module.

As can be seen from the above description, the first LED light source filter module mainly reduces the Ipk value of the ripple current of the light emitting diode LED1 through an electrolytic capacitor E2, so as to obtain an output current with low ripple; the size of the ripple current depends on the size of the capacitance value of the electrolytic capacitor, and the larger the capacitance value is, the smaller the ripple current is; and the corresponding resistor R10 discharges the electrolytic capacitor E2 when the power is cut off.

As can be seen from the above description, the second LED light source filter module mainly reduces the Ipk value of the ripple current of the light emitting diode LED2 through an electrolytic capacitor E3, so as to obtain an output current with low ripple; the size of the ripple current depends on the size of the capacitance value of the electrolytic capacitor, and the larger the capacitance value is, the smaller the ripple current is; and the corresponding resistor R11 discharges the electrolytic capacitor E3 when the power is cut off.

Referring to fig. 1 and fig. 2, a first embodiment of the present invention is:

referring to fig. 1, the color temperature variable driving circuit includes a constant voltage output module 1, a ball switch control output module 2, a toggle switch module 3, an LED linear driving module 4, a first LED light source filtering module 5, and a second LED light source filtering module 6, wherein the ball switch control output module 2 is electrically connected to the constant voltage output module 1, the toggle switch module 3, and the LED linear driving module 4, the LED linear driving module 4 is electrically connected to the toggle switch module 3, the first LED light source filtering module 5, and the second LED light source filtering module 6, and the constant voltage output module 1 is electrically connected to the toggle switch module 3.

Referring to fig. 2, the ball switch control output module 2 includes a resistor R1 (having a resistance value of 240k Ω), a resistor R2 (having a resistance value of 150k Ω), a resistor R3 (having a resistance value of 30k Ω), a resistor R4 (having a resistance value of 240k Ω), a resistor R5 (having a resistance value of 150k Ω), a resistor R6 (having a resistance value of 30k Ω), a capacitor C1 (having a capacitance value of 1 μ F), a capacitor C2 (having a capacitance value of 1 μ F), a zener diode ZD1 (having a voltage value of 5.1V), a zener diode ZD2 (having a voltage value of 5.1V), a ball switch S1 (having a rated voltage of 6V), and a ball switch S2 (having a rated voltage of 6V), one end of the resistor R1 is electrically connected to the constant voltage output module 1, one end of the resistor R4 and the LED linear driving module 4, the other end of the resistor R1 is electrically connected to one end of the resistor R2, and the other end of the resistor R2 and the cathode of the zener diode ZD1 are electrically connected to the cathode of the zener diode ZD1, One end of a capacitor C1, one end of a resistor R3, one end of a ball switch S1 and the toggle switch module 3 are electrically connected, the anode of a voltage-regulator tube ZD1 is electrically connected with the constant-voltage output module 1, the other end of the capacitor C1, the other end of the resistor R3 and the other end of the ball switch S1 respectively, the other end of the resistor R4 is electrically connected with one end of a resistor R5, the other end of the resistor R5 is electrically connected with the cathode of the voltage-regulator tube ZD2, one end of a capacitor C2, one end of the resistor R6, one end of the ball switch S2 and the toggle switch module 3 respectively, and the anode of the voltage-regulator tube ZD2 is electrically connected with the other end of the capacitor C2, the other end of the resistor R6 and the other end of the ball switch S2 respectively.

Referring to fig. 2, the LED linear driving module 4 includes a resistor R7 (with a resistance value of 8.2 Ω), a resistor R8 (with a resistance value of 8.2 Ω), a resistor R9 (with a resistance value of 10k Ω), a diode D1 (with a model of ES1J), and a chip IC (with a model of BP5778EJ), a first pin of the chip IC is electrically connected to the toggle switch module 3, a second pin of the chip IC is electrically connected to one end of the resistor R7, a third pin of the chip IC is electrically connected to the toggle switch module 3, a fourth pin of the chip IC is electrically connected to one end of the resistor R8, the other end of the resistor R8 is electrically connected to the other end of the resistor R7, the other end of the resistor R8 and the other end of the resistor R7 are both grounded, a fifth pin of the chip IC is electrically connected to the second LED light source filtering module 6, a sixth pin of the chip IC is electrically connected to the first LED light source filtering module 5, and an eighth pin of the chip IC is electrically connected to one end of the resistor R9, the other end of the resistor R9 is respectively and electrically connected with the cathode of the diode D1, the first LED light source filter module 5 and the second LED light source filter module 6, and the anode of the diode D1 is electrically connected with the ball switch control output module 2.

Referring to fig. 2, the constant voltage output module 1 includes a resistor R12 (with a resistance value of 240k Ω), a resistor R13 (with a resistance value of 150k Ω), a resistor R14 (with a resistance value of 30k Ω), a capacitor C13 (with a capacitance value of 1 μ F), an electrolytic capacitor E1 (with a capacitance value of 3.3 μ F), and a zener diode ZD3 (with a voltage value of 5.1V), one end of the resistor R12 is electrically connected to one end of the electrolytic capacitor E1, the ball switch control output module 2, and the LED linear driving module 4, the other end of the resistor R12 is electrically connected to one end of the resistor R13, the other end of the resistor R13 is electrically connected to a cathode of the zener diode 3, one end of the capacitor C13, one end of the resistor R14, and the toggle switch module 3, an anode of the zener diode 3 is electrically connected to the other end of the capacitor C13 and the other end of the resistor R14, and the other ends of the zener diode ZD3, the capacitor C13, and the resistor ZD 14 are all grounded, the other end of the electrolytic capacitor E1 is electrically connected with the ball switch control output module 2, and the other end of the electrolytic capacitor E1 and the ball switch control output module 2 are both grounded.

Referring to fig. 2, the first LED light source filtering module 5 includes a resistor R10 (with a resistance value of 300k Ω), an electrolytic capacitor E2 (with a capacitance value of 33 μ F), and a light emitting diode LED1 (if the commercial power is 120V input, the voltage of the light emitting diode LED1 may be decreased to about 140V by a single light source of 9V or 18V, if the commercial power is 230V input, the voltage of the light emitting diode LED1 may be decreased to about 280V by a single light source of 9V or 18V), one end of the electrolytic capacitor E2 is electrically connected to one end of the resistor R10, the LED linear driving module 4, the anode of the light emitting diode LED1, and the second LED light source filtering module 6, and the other end of the electrolytic capacitor E2 is electrically connected to the LED linear driving module 4, the other end of the resistor R10, and the cathode of the light emitting diode LED 1.

Referring to fig. 2, the second LED light source filter module 6 includes a resistor R11 (with a resistance value of 300k Ω), an electrolytic capacitor E3 (with a capacitance value of 33 μ F), and a light emitting diode LED2 (if the commercial power is 120V input, the voltage of the light emitting diode LED1 may be decreased to about 140V by a single light source of 9V or 18V, if the commercial power is 230V input, the voltage of the light emitting diode LED1 may be decreased to about 280V by a single light source of 9V or 18V), one end of the electrolytic capacitor E3 is electrically connected to one end of the resistor R11, the LED linear driving module 4, the anode of the light emitting diode LED2, and the first LED light source filter module 5, and the other end of the electrolytic capacitor E3 is electrically connected to the LED linear driving module 4, the other end of the resistor R11, and the cathode of the light emitting diode LED 2.

Referring to fig. 2, the toggle switch module 3 includes a toggle switch S3 (2-row 3-stage switch), and reference is made to fig. 2 for connection between the toggle switch S3 and other components;

referring to fig. 1, the constant voltage output module further includes an overcurrent protection module 7, an overvoltage protection module 8 and a rectification filter module 9, where the overvoltage protection module 8 is electrically connected to the overcurrent protection module 7 and the rectification filter module 9, respectively, and the rectification filter module 9 is electrically connected to the constant voltage output module 1.

The overcurrent protection module 7 includes a voltage dependent resistor RV, the overcurrent protection module 7 includes a safety resistor F1, the rectifier filter module 9 includes a rectifier bridge BR, and the specific connection relationship between the components thereof please refer to fig. 2.

The overcurrent protection module 7 is mainly formed by connecting a safety resistor F1 in series in a circuit, and when the current in the circuit is too large, the safety resistor F1 is fused, so that the power supply is automatically cut off, and the function of protecting the circuit is achieved.

The overvoltage protection module 8 is mainly a piezoresistor RV and is arranged in the circuit, and when the circuit works normally, the piezoresistor RV is in a high-resistance state and does not influence the normal work of the circuit; when abnormal transient overvoltage occurs in the circuit, the piezoresistor RV can be rapidly changed from a high-resistance state to a low-resistance state, and the abnormal transient voltage is clamped at a safe level, so that the effect of protecting a post-stage circuit is achieved.

The rectifying and filtering module 9 is mainly used for rectifying through a rectifier bridge BR, and adjusting the current direction, so that alternating current is rectified into pulsating direct current.

The working principle of the color temperature variable driving circuit is as follows:

the normal commercial power is connected to the voltage stabilizer through the safety resistor F1 and the voltage dependent resistor RV, then rectified through the rectifier bridge BR, and then serially connected with the resistor R12, the resistor R13 and the resistor R14 for voltage division, and the capacitor C13 is arranged at two ends of the resistor R14, so that the voltage at two ends of the resistor R14 is more stable, and meanwhile, the voltage stabilizer ZD3 plays a role in protection. The same principle is that the voltage is divided through a resistor R1, a resistor R2 and a resistor R3 in series, and is divided through a resistor R4, a resistor R5 and a resistor R6 in series, and only the two paths are provided with a ball switch S1 and a ball switch S2 which are respectively used for controlling voltage values at two ends of the resistor R3 and the resistor R6. When the voltage across the resistor R14 is at one of the first stage and the third stage of the dial switch S3, the voltage across the resistor R3 and the resistor R6 is at the second stage of the dial switch S3, and the two dial terminals of the dial switch S3 are respectively connected to two signal pins (i.e. the first pin and the third pin of the chip IC) of the LED linear driving module 4, when the dial terminals are dialed to the first stage, the DIM1 pin (i.e. the first pin) of the chip IC receives the voltage signal, the LED1 connected to the D1 pin (i.e. the sixth pin) of the chip IC is turned on, and yellow light is on at this time; when the plectrum end is dialed to the third gear, a DIM2 pin (namely, a third pin) of the chip IC receives a voltage signal, a light-emitting diode LED2 connected to a D2 pin (namely, a fifth pin) of the chip IC is conducted, and at the moment, white light is lightened; when the plectrum end is dialed to the second gear, the voltage signals of the DIM1 pin and the DIM2 pin are determined by whether the ball switches are conducted, and the positions of the two ball switches are opposite, so that only one of the DIM1 pin and the DIM2 pin of the chip IC receives the voltage signal, and the light source corresponding to the color temperature of the received voltage signal is lightened; therefore, when the dial end of the dial switch S3 is dialed to the first gear or the third gear, the corresponding light source with fixed color temperature is lighted, and when the dial end of the dial switch S3 is dialed to the second gear, the orientation of the whole lamp product determines which color temperature is lighted, and when the lamp is turned for 180 degrees, the other color temperature is lighted.

In summary, according to the color temperature variable driving circuit provided by the utility model, by arranging the constant voltage output module, a relatively stable constant voltage value can be obtained and output to the ball switch control output module and the toggle switch module, the toggle switch module is used for controlling a voltage signal to the LED linear driving module, and the LED linear driving module is used for controlling the color temperature and the output current of the whole driving output light source so as to control which path of light source is bright in color temperature.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a variable colour temperature drive circuit, its characterized in that includes constant voltage output module, ball switch control output module, toggle switch module, the linear drive module of LED, first LED light source filter module and second LED light source filter module, ball switch control output module is connected with constant voltage output module, toggle switch module and the linear drive module electricity of LED respectively, the linear drive module of LED is connected with toggle switch module, first LED light source filter module and second LED light source filter module electricity respectively, constant voltage output module is connected with toggle switch module electricity.

2. The color temperature variable driving circuit according to claim 1, wherein the ball switch control output module comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a voltage regulator tube ZD1, a voltage regulator tube ZD2, a ball switch S1 and a ball switch S2, one end of the resistor R1 is electrically connected with the constant voltage output module, one end of the resistor R4 and the LED linear driving module respectively, the other end of the resistor R1 is electrically connected with one end of the resistor R2, the other end of the resistor R2 is electrically connected with a cathode of the voltage regulator tube 1, one end of the capacitor C1, one end of the resistor R1, one end of the ball switch S1 and the toggle switch module respectively, an anode of the constant voltage output module ZD1, the other end of the capacitor C1, the other end of the resistor R1 and the other end of the toggle switch S1 are electrically connected with one end of the resistor ZD1, the other end of the resistor R5 is respectively and electrically connected with the cathode of a voltage-regulator tube ZD2, one end of a capacitor C2, one end of a resistor R6, one end of a ball switch S2 and the toggle switch module, and the anode of the voltage-regulator tube ZD2 is respectively and electrically connected with the other end of a capacitor C2, the other end of a resistor R6 and the other end of the ball switch S2.

3. The color temperature variable driving circuit according to claim 1, wherein the LED linear driving module comprises a resistor R7, a resistor R8, a resistor R9, a diode D1 and a chip IC, a first pin of the chip IC is electrically connected to the toggle switch module, a second pin of the chip IC is electrically connected to one end of the resistor R7, a third pin of the chip IC is electrically connected to the toggle switch module, a fourth pin of the chip IC is electrically connected to one end of the resistor R8, the other end of the resistor R8 is electrically connected to the other end of the resistor R7, the other ends of the resistor R8 and the resistor R7 are both grounded, a fifth pin of the chip IC is electrically connected to the second LED light source filtering module, a sixth pin of the chip IC is electrically connected to the first LED light source filtering module, an eighth pin of the chip IC is electrically connected to one end of the resistor R9, and the other ends of the resistors R9 are respectively connected to a cathode of the diode D1, The first LED light source filtering module is electrically connected with the second LED light source filtering module, and the anode of the diode D1 is electrically connected with the ball switch control output module.

4. The color temperature variable driving circuit according to claim 1, wherein the constant voltage output module comprises a resistor R12, a resistor R13, a resistor R14, a capacitor C13, an electrolytic capacitor E1 and a voltage regulator tube ZD3, one end of the resistor R12 is respectively and electrically connected with one end of the electrolytic capacitor E1, the ball switch control output module and the LED linear driving module, the other end of the resistor R12 is electrically connected with one end of a resistor R13, the other end of the resistor R13 is respectively and electrically connected with the cathode of the voltage regulator tube ZD3, one end of the capacitor C13, one end of the resistor R14 and the toggle switch module, the anode of the voltage regulator tube ZD3 is respectively and electrically connected with the other end of the capacitor C13 and the other end of the resistor R14, the anode of the voltage regulator tube ZD3, the other end of the capacitor C13 and the other end of the resistor R14 are all grounded, the other end of the electrolytic capacitor E1 is electrically connected with the ball switch control output module, and the other end of the electrolytic capacitor E1 and the ball switch control output module are both grounded.

5. The color temperature variable driving circuit according to claim 1, wherein the first LED light source filtering module comprises a resistor R10, an electrolytic capacitor E2 and a light emitting diode LED1, one end of the electrolytic capacitor E2 is electrically connected to one end of the resistor R10, the LED linear driving module, the anode of the light emitting diode LED1 and the second LED light source filtering module, respectively, and the other end of the electrolytic capacitor E2 is electrically connected to the other end of the LED linear driving module, the other end of the resistor R10 and the cathode of the light emitting diode LED1, respectively.

6. The color temperature variable driving circuit according to claim 1, wherein the second LED light source filtering module comprises a resistor R11, an electrolytic capacitor E3 and a light emitting diode LED2, one end of the electrolytic capacitor E3 is electrically connected to one end of the resistor R11, the LED linear driving module, the anode of the light emitting diode LED2 and the first LED light source filtering module, and the other end of the electrolytic capacitor E3 is electrically connected to the other end of the LED linear driving module, the other end of the resistor R11 and the cathode of the light emitting diode LED 2.

7. The color temperature variable driving circuit according to claim 1, further comprising an over-current protection module, an over-voltage protection module and a rectifying and filtering module, wherein the over-voltage protection module is electrically connected to the over-current protection module and the rectifying and filtering module, respectively, and the rectifying and filtering module is electrically connected to the constant voltage output module.