Lighting equipment control circuit and lighting equipment

Abstract

The utility model relates to a lighting equipment control circuit and lighting equipment, and relates to the technical field of lighting control, and the lighting equipment control circuit comprises a main control module, a charging management module and a driving module; the output end of the main control module is connected with the input end of the driving module for controlling the driving module; the output end of the charging management module is connected with the lighting device and used for supplying power to the lighting device. The output end of the driving module is connected with the lighting equipment and used for driving the lighting equipment; the main control module comprises a main control chip, the main control chip comprises a touch control key pin, and the main control chip is connected with a touch control key through the touch control key pin; the main control module further comprises a touch control filter circuit, the main control chip further comprises a touch control sensitivity pin, and the main control chip is connected with the touch control filter circuit through the touch control sensitivity pin. According to the application, a single touch key is used for control, and the situation that the touch key is touched by mistake can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of lighting control technology, and in particular to a lighting device control circuit and a lighting device. Background Art

[0002] At present, lighting equipment usually has a small size and a simple appearance. Touch buttons are usually used to adjust the brightness, color temperature, etc. of the lighting equipment. However, most lighting equipment needs to be equipped with multiple touch buttons to achieve different functions, which is more complicated to use. At the same time, because touch buttons are different from physical buttons, they do not need to be pressed very hard to achieve touch control, which is also prone to accidental touches, etc., which interferes with the control process of the lighting equipment. Utility Model Content

[0003] The purpose of the present application is to provide a lighting device control circuit and a lighting device, which are controlled by a single touch button and can effectively reduce the occurrence of accidental touches of the touch button.

[0004] In a first aspect, the present application provides a lighting device control circuit that adopts the following technical solution:

[0005] A lighting equipment control circuit comprises a main control module, a charging management module and a driving module;

[0006] The output end of the main control module is connected to the input end of the driving module for controlling the driving module;

[0007] The output end of the charging management module is connected to the lighting device for supplying power to the lighting device;

[0008] The output end of the driving module is connected to the lighting device and is used to drive the lighting device;

[0009] The main control module includes a main control chip, the main control chip includes a touch button pin, and the main control chip is connected to the touch button through the touch button pin;

[0010] The main control module further includes a touch filter circuit, and the main control chip further includes a touch sensitivity pin, and the main control chip is connected to the touch filter circuit via the touch sensitivity pin.

[0011] By adopting the above technical solution, the main control chip of the present application is connected to the touch button through the touch button pin, and the lighting equipment can be turned on and off, the brightness and color temperature can be adjusted through a single touch button, which is simple to operate and convenient for daily use. At the same time, the main control chip of the present application is connected to the touch filter circuit through the touch sensitivity pin, and the touch filter circuit can filter the touch signal, increase the sensitivity of the touch button, and effectively reduce the interference caused by the false touch of the touch button.

[0012] Furthermore, the main control chip includes a first dimming signal output pin and a second dimming signal output pin, and the main control chip is connected to the input end of the driving module through the first dimming signal output pin and the second dimming signal output pin.

[0013] By adopting the above technical solution, the main control chip is connected to the input end of the driving module through the first dimming signal output pin and the second dimming signal output pin, which is used to output a dimming signal to the driving module, thereby dimming the lighting device through the driving module.

[0014] Further, the driving module includes a first driving circuit and a second driving circuit connected in parallel;

[0015] The main control chip is connected to the input end of the first driving circuit through a first dimming signal output pin, and the main control chip is connected to the input end of the second driving circuit through a second dimming signal output pin.

[0016] By adopting the above technical solution, when the lighting device is an LED lamp, dimming the LED lamp usually requires two dimming signal inputs, so the driving module is provided with two parallel driving circuits, and are respectively connected to the first dimming signal output pin and the second dimming signal output pin of the main control chip, for receiving the dimming signal sent by the main control chip, and the output ends of the first driving circuit and the second driving circuit are connected to the lighting device, so as to dim the lighting device.

[0017] Furthermore, the first driving circuit is provided with a first field effect transistor, and the second driving circuit is provided with a second field effect transistor;

[0018] The gate of the first field effect tube is connected to the first dimming signal output pin, the source of the first field effect tube is grounded, and the drain of the first field effect tube is connected to the lighting device;

[0019] The gate of the second field effect tube is connected to the second dimming signal output pin, the source of the second field effect tube is grounded, and the drain of the second field effect tube is connected to the lighting device.

[0020] By adopting the above technical solution, the field effect tube has the function of enabling the conduction circuit. The gate of the field effect tube is connected to the dimming signal output pin, and the driving circuit is turned on when the dimming signal is received, so that the lighting device starts to illuminate.

[0021] Further, the charging management module includes a charging management chip, and the charging management chip includes a charging input pin and a battery output pin;

[0022] The charging management chip is connected to the charging access port via a charging input pin;

[0023] The charging management chip is connected to the lighting device via the battery output pin.

[0024] By adopting the above-mentioned technical solution, the present application uses a charging management chip to charge and then power the lighting device. When a charging device is connected, the charging device powers the control circuit and charges the charging management chip at the same time; when no charging device is connected, the charging management chip powers the control circuit, so that the lighting device can be used normally without external power supply, thereby improving the convenience of use.

[0025] Furthermore, the charging management chip includes two charging indicator light pins, and the charging management chip is connected to two charging indicator lights through the two charging indicator light pins respectively.

[0026] By adopting the above technical solution, the present application connects the charging indicator light through the charging indicator light pin to display the current charging status of the charging management chip, which is convenient for confirming whether it is charging or whether charging needs to continue during use, thereby improving the convenience of use.

[0027] Furthermore, the charging management chip also includes a temperature detection pin, and the charging management chip is connected to a temperature detection device via the temperature detection pin.

[0028] By adopting the above technical solution, since the temperature of the charging management chip may rise during the charging process, when the temperature is too high it will cause chip failure and create a safety hazard. Therefore, the charging management chip of the present application is connected to the temperature detection device through a temperature detection pin. When the temperature detection device detects that the current temperature exceeds the preset threshold, it will prompt or alarm so that charging can be stopped immediately and wait for cooling or timely maintenance can be carried out.

[0029] Furthermore, the main control module also includes a test circuit, and the charging management chip is connected to the test circuit via a battery output pin.

[0030] By adopting the above technical solution, the main control module of the present application is provided with a test circuit. When the main control chip fails or a problem occurs in the circuit board during production, the circuit is tested by connecting a multimeter to the test circuit to ensure the reliability of the control circuit.

[0031] Furthermore, the main control chip includes a test pin, and the test pin is connected to the first test point.

[0032] By adopting the above technical solution, the present application detects the touch keys through the first test point connected to the main control chip to ensure the reliability of the touch keys of the present application.

[0033] In a second aspect, the present application provides a lighting device that adopts the following technical solution:

[0034] A lighting device, comprising a lighting device body and a lighting device control circuit according to the first aspect, wherein the control circuit is built in the lighting device body;

[0035] Also included are a touch button and a charging access port disposed on the outside of the lighting device body;

[0036] The touch button is electrically connected to a main control module of the control circuit, and the charging access port is electrically connected to a charging management module of the control circuit.

[0037] By adopting the above technical solution, the present application connects the main control module through a single touch button, realizes the use of a single touch button to control the switch, brightness adjustment and color temperature adjustment of the lighting device body, connects to the charging management module through the charging access port, realizes charging of the lighting device body, and realizes the normal use of the lighting device body without an external power supply. At the same time, since the control circuit of the present application is provided with a touch filter circuit, the touch information is filtered to ensure that the touch button of the present application has high sensitivity and strong reliability, and effectively reduces the occurrence of false touches during use.

[0038] In summary, the present application includes at least one of the following beneficial technical effects:

[0039] 1. The main control chip of the present application is connected to the touch button through the touch button pin, and the lighting equipment can be turned on and off, the brightness and color temperature can be adjusted through a single touch button, which is simple to operate and convenient for daily use;

[0040] 2. The main control chip applied for is connected to the touch filter circuit through the touch sensitivity pin. The touch filter circuit can filter the touch signal, increase the sensitivity of the touch button, and prevent the touch button from causing accidental touch interference;

[0041] 3. This application uses a charging management chip to charge and then power the lighting device, so that the lighting device can be used normally without external power supply, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is an overall circuit structure diagram of an embodiment of the present application;

[0043] Figure 2 is a circuit structure diagram of a main control module in an embodiment of the present application;

[0044] Figure 3 is a circuit structure diagram of a driving module according to an embodiment of the present application;

[0045] Figure 4 is a circuit structure diagram of a charging management module in an embodiment of the present application;

[0046] Figure 5is an overall structural diagram of a lighting device according to an embodiment of the present application;

[0047] In the figure, 1. main control module; 11. touch filter circuit; 12. test circuit; 2. charging management module; 3. drive module; 31. first drive circuit; 32. second drive circuit; 4. lighting device body; 5. touch button; 6. charging access port. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0049] The present application embodiment provides a lighting device control circuit, referring to Figure 1 , including a main control module 1, a charging management module 2 and a driving module 3. The output end of the main control module 1 is connected to the input end of the driving module 3, which is used to control the driving module 3. The input end of the charging management module 2 is connected to an external charging device during charging, and the output end of the charging management module 2 is connected to a lighting device, which is used to power the lighting device. The output end of the driving module 3 is connected to the lighting device, which is used to drive the lighting device.

[0050] like Figure 1 and Figure 2 As shown, the main control module 1 includes a main control chip U1. In the specific implementation process, the main control chip U1 uses a single-chip microcomputer chip of model PFC161. The main control chip U1 has eight pins, of which pin 1 is a test pin TP, pin 2 is a touch sensitivity pin CS, pin 3 is a power pin VDD, pin 4 is a ground pin GND, pin 5 is a touch button pin TOUCH, pin 6 is a spare pin, pin 7 is a second dimming signal output pin PWM2, and pin 8 is a first dimming signal output pin PWM1. The main control chip U1 is connected to the touch button 5 of the lighting device through the touch button pin TOUCH, and is connected to the input end of the driving module 3 through the first dimming signal output pin PWM1 and the second dimming signal output pin PWM2. The main control chip U1 receives the touch signal transmitted by the touch button 5, and then converts the touch signal into a dimming control signal with start-up information, brightness dimming information and color temperature adjustment information and transmits it to the driving module 3, so that the lighting device can be switched on and off or the brightness and color temperature can be adjusted using a single touch button 5.

[0051] Since the lighting device of this embodiment is an LED lamp, the LED lamp usually requires two dimming signal inputs when dimming, that is, the cold light tube and the warm light tube of the LED lamp need to be adjusted synchronously to achieve color temperature adjustment. When driving the LED lamp, the frequency of the dimming signal is required to reach above 20KHz. When the driving current is too large, the chip capacitor of the circuit board may howl. Therefore, this embodiment outputs two dimming signals to the driving module 3 through the main control chip U1, and the duty cycle of the dimming signal is halved to ensure that the output brightness of the cold light and the warm light is consistent, preventing the driving current from being too large.

[0052] like Figure 1 and Figure 3 As shown, the driving module 3 includes a first driving circuit 31 and a second driving circuit 32 connected in parallel, the main control chip U1 is connected to the first driving circuit 31 through the first dimming signal output pin PWM1, and the main control chip U1 is connected to the second driving circuit 32 through the second dimming signal output pin PWM2. In this embodiment, the first dimming signal output pin PWM1 of the main control chip U1 outputs a cold light adjustment signal to the input end of the first driving circuit 31, and the output end of the first driving circuit 31 is connected to the cold light tube of the LED lamp to achieve cold light adjustment of the LED lamp; the second dimming signal output pin PWM2 of the main control chip U1 outputs a warm light adjustment signal to the input end of the second driving circuit 32, and the output end of the second driving circuit 32 is connected to the warm light tube of the LED lamp to achieve warm light adjustment of the LED lamp.

[0053] In the specific implementation process, since this embodiment realizes the switching, brightness adjustment and color temperature adjustment of the LED light through a single touch button 5, the touch mode of the touch button 5 is divided into short press and long press. Specifically, the touch time of the touch button is 0.1-3 seconds, which is classified as a short press, and the touch time of the touch button is more than 3 seconds, which is classified as a long press. The touch button 5 generates a touch signal according to the touch time. A long press generates a long press touch signal, and a short press generates a short press touch signal. When the LED light is in the off state, long press the touch button 5, the touch button 5 generates a long press touch signal, and transmits the long press touch signal to the main control chip U1. The main control chip U1 converts the long press touch signal into the start information, and the main control chip U1 starts to output the dimming signal according to the start information, and the LED light is turned on. At this time, the LED light is at the default brightness and default color temperature. When the touch button 5 is long pressed at the default brightness, the touch button 5 generates a long touch signal and transmits the long touch signal to the main control chip U1. The main control chip U1 converts the long touch signal into brightness dimming information. Then, the main control chip U1 increases or decreases the output dimming signal according to the brightness dimming information as the touch button 5 is long pressed, thereby realizing stepless dimming of the LED lamp. When the touch button 5 is short pressed at the default color temperature, the touch button 5 generates a short touch signal and transmits the short touch signal to the main control chip U1. The main control chip U1 converts the short touch signal into color temperature dimming information. Then, the main control chip U1 controls the proportion of the cold light adjustment signal and the warm light adjustment signal in the output adjustment dimming signal according to the color temperature adjustment information, thereby adjusting the current flow input to the first drive circuit 31 and the second drive circuit 32, thereby adjusting the color temperature of the LED lamp. Specifically, the switching of short-pressing the touch button 5 is divided into cold light mode, warm light mode and off. After the LED light is turned on, short-pressing the touch button 5 once will adjust it to the cold light mode, and the main control chip U1 will increase the proportion of the cold light adjustment signal and reduce the proportion of the warm light adjustment signal in parallel; short-pressing the touch button 5 again will adjust it to the warm light mode, and the main control chip U1 will increase the proportion of the warm light adjustment signal and reduce the proportion of the cold light adjustment signal. Short-pressing the touch button 5 again will cause the touch button 5 to generate a short-press touch signal and transmit the short-press touch signal to the main control chip U1. The main control chip U1 will convert the short-press touch signal into an off signal, and the main control chip U1 will stop outputting the dimming signal, and the LED light will be turned off. Thus, the switching, brightness adjustment and color temperature adjustment of the LED light can be achieved through a single touch button 5.

[0054] The first driving circuit 31 includes a resistor R1, a resistor R2, a resistor R3 and an N-MOS field effect transistor Q1, and the specific model of the N-MOS field effect transistor Q1 is AO3400. The input end of the resistor R2 is the first dimming signal input end, the output end of the resistor R2 is connected to the gate of the N-MOS field effect transistor Q1, the input end of the resistor R3 is connected between the resistor R2 and the gate of the N-MOS field effect transistor Q1, the output end of the resistor R3 is grounded, the source of the N-MOS field effect transistor Q1 is grounded, the drain of the N-MOS field effect transistor Q1 is connected to the input end of the resistor R1, and the output end POUT1 of the resistor R1 is connected to the cold light tube of the LED lamp, and the cold light tube of the LED lamp is composed of cold light emitting diodes C1-C30 connected.

[0055] The second driving circuit 32 includes a resistor R4, a resistor R5, a resistor R6 and an N-MOS field effect transistor Q2, and the specific model of the N-MOS field effect transistor Q2 is AO3400. The input end of the resistor R5 is the second dimming signal input end, the output end of the resistor R5 is connected between the input end of the resistor R6 and the gate of the N-MOS field effect transistor Q2, the output end of the resistor R6 is grounded, the source of the N-MOS field effect transistor Q2 is grounded, the drain of the N-MOS field effect transistor Q2 is connected to the input end of the resistor R4, and the output end of the resistor R4 is connected to the warm light tube of the LED lamp, and the warm light tube of the LED lamp is composed of warm light light emitting diodes W1-W30.

[0056] like Figure 2 As shown, the main control module 1 also includes a touch filter circuit 11, and the main control chip U1 is connected to the touch filter circuit 11 through the touch sensitivity pin CS. Specifically, the touch filter circuit 11 includes a capacitor C35 and a capacitor C36 connected in parallel, and the input ends of the capacitors C35 and C36 are connected to the touch sensitivity pin CS of the main control chip U1. Capacitor C35 is a small capacitor, and its capacitance value is NC level. NC usually means that the capacitance value of the capacitor is very small. Specifically, 1nc is equal to 0.000000001F, which is one thousandth of 1 picofarad or one millionth of 1 nanofarad; capacitor C36 is a large capacitor, and its capacitance value is 15nF. The capacitor C36 in the touch filter circuit 11 can filter out low-frequency signals, while the capacitor C35 can filter out high-frequency signals. The combination of capacitors C35 and C36 can achieve a more comprehensive filtering effect. In this embodiment, the touch signal is filtered by the touch filter circuit 11, the sensitivity of the touch button 5 is increased, and the false touch interference of the touch button 5 is effectively reduced.

[0057] like Figure 2As shown, the main control module also includes a test circuit 12, the test pin TP of the main control chip U1 is connected to the first test point TP1, and the two ends of the test circuit 12 are connected to the second test point TP2 and the third test point TP3. When it is necessary to detect the sensitivity of the touch button 5, the touch button 5 is tested through the first test point TP1 to ensure the reliability of the touch button 5. When the main control chip U1 fails, or there is a problem with the circuit board during production, the circuit is tested by connecting a multimeter to the second test point TP2 and the third test point TP3 of the test circuit 12 to ensure the reliability of the control circuit.

[0058] like Figure 4 As shown, the charging management module 2 includes a charging management chip U2, and the charging management chip U2 adopts a lithium battery chip of model TP4056. Pin 4 of the charging management chip U2 is a charging input pin VCC, which is used to connect to a charging device to charge the charging management chip U2. Pin 5 of the charging management chip U2 is a battery output pin BAT, which is used to connect to an LED lamp and power the LED lamp, so that the LED lamp can operate normally without an external power supply.

[0059] The charging management chip U2 also includes two charging indicator pins, of which pin 6 is the charging start signal output pin STBDY, and pin 7 is the charging status signal output pin CHRG. The charging start signal STBDY and the charging status signal CHRG can be used to determine whether the charging management chip U2 has started charging and whether it is fully charged. The charging management chip U2 is connected to the parallel cold light charging indicator red light emitting diode D1 and blue light emitting diode D2 through two charging indicator pins. In the specific implementation process, when the charging status of the charging management chip U2 is not charged, the red light and the blue light are not on; when the charging status of the charging management chip U2 is charging, the red light is on; when the charging status of the charging management chip U2 is fully charged, the blue light is on. It is convenient to timely confirm whether it is currently charging or whether it needs to continue charging, which improves the convenience of use.

[0060] Pin 1 of the charging management chip U2 is the temperature detection pin TEMP. The charging management chip U2 is connected to a temperature detection device via the temperature detection pin TEMP. In the specific implementation process, the temperature detection device may use a temperature sensor. When the temperature detection device detects that the temperature of the current charging management chip U2 exceeds a preset threshold, the charging management chip U2 is powered off, or an alarm light or alarm is used to prompt, so as to stop charging immediately and wait for cooling or to perform maintenance in time, effectively avoiding damage to the circuit board due to excessive temperature during the charging process.

[0061] The implementation principle of the embodiment of the present application is as follows: the main control chip U1 of the main control module is connected to the touch button 5 through the touch button pin TOUCH, and the lighting device can be turned on and off, the brightness adjustment and the color temperature adjustment can be realized through a single touch button 5, which is simple to operate and convenient for daily use. At the same time, the main control chip U1 is connected to the touch filter circuit 11 through the touch sensitivity pin CS, and the touch filter circuit 11 can filter the touch signal, increase the sensitivity of the touch button 5, and effectively reduce the interference caused by the touch button 5.

[0062] The present application also provides a lighting device, referring to Figure 5 , including a lighting device body 4 and a lighting device control circuit provided by the above solution, the control circuit is built into the lighting device body 4; the driving module 3 of the control circuit is electrically connected to the lighting device.

[0063] The lighting device also includes a touch button 5 and a charging port 6 arranged outside the lighting device body 4; the touch button 5 is electrically connected to the main control module 1 of the control circuit, and is used to control the switch, brightness adjustment and color temperature adjustment of the lighting device body 4 by touching the touch button 5.

[0064] The lighting device body 4 of this embodiment includes an LED lamp. When the main control chip U1 starts to output a dimming signal, the LED lamp starts to emit light; when the intensity of the dimming signal output by the main control chip U1 changes, the brightness of the LED lamp also changes; when the ratio of the warm light adjustment signal and the cold light adjustment signal output by the main control chip U1 changes, the color temperature of the LED lamp changes.

[0065] In this embodiment, the charging access port 6 is electrically connected to the charging management module 2 of the control circuit. When charging or external power supply is required, the charging device is inserted from the charging access port 6. In the specific implementation process, the charging access port 6 can use a USB interface. When a charging device is connected, the charging device supplies power to the control circuit and charges the charging management chip U2 at the same time; when no charging device is connected, the charging management chip U2 supplies power to the control circuit.

[0066] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lighting device control circuit, characterized in that: It comprises a main control module (1), a charging management module (2) and a driving module (3); The output end of the main control module (1) is connected to the input end of the driving module (3) and is used to control the driving module (3); The output end of the charging management module (2) is connected to a lighting device for supplying power to the lighting device; The output end of the driving module (3) is connected to the lighting device and is used to drive the lighting device; The main control module (1) comprises a main control chip, the main control chip comprises a touch key pin, and the main control chip is connected to a touch key (5) via the touch key pin; The main control module (1) further comprises a touch filter circuit (11), and the main control chip further comprises a touch sensitivity pin, and the main control chip is connected to the touch filter circuit (11) via the touch sensitivity pin.

2. A lighting device control circuit according to claim 1, characterized in that: The main control chip comprises a first dimming signal output pin and a second dimming signal output pin, and the main control chip is connected to the input end of the driving module (3) via the first dimming signal output pin and the second dimming signal output pin.

3. A lighting device control circuit according to claim 2, characterized in that: The driving module (3) comprises a first driving circuit (31) and a second driving circuit (32) connected in parallel; The main control chip is connected to the input end of the first drive circuit (31) via a first dimming signal output pin, and the main control chip is connected to the input end of the second drive circuit (32) via a second dimming signal output pin.

4. A lighting device control circuit according to claim 3, characterized in that: The first drive circuit (31) is provided with a first field effect transistor, and the second drive circuit (32) is provided with a second field effect transistor; The gate of the first field effect tube is connected to the first dimming signal output pin, the source of the first field effect tube is grounded, and the drain of the first field effect tube is connected to the lighting device; The gate of the second field effect tube is connected to the second dimming signal output pin, the source of the second field effect tube is grounded, and the drain of the second field effect tube is connected to the lighting device.

5. A lighting device control circuit according to claim 1, characterized in that: The charging management module (2) comprises a charging management chip, and the charging management chip comprises a charging input pin and a battery output pin; The charging management chip is connected to the charging access port (6) via a charging input pin; The charging management chip is connected to the lighting device via the battery output pin.

6. A lighting device control circuit according to claim 5, characterized in that: The charging management chip comprises two charging indicator light pins, and the charging management chip is connected to two charging indicator lights respectively through the two charging indicator light pins.

7. A lighting equipment control circuit according to claim 5, characterized in that: The charging management chip also includes a temperature detection pin, and the charging management chip is connected to a temperature detection device via the temperature detection pin.

8. A lighting device control circuit according to any one of claims 5 to 7, characterized in that: The main control module (1) also includes a test circuit (12), and the charging management chip is connected to the test circuit (12) via a battery output pin.

9. A lighting device control circuit according to any one of claims 1 to 7, characterized in that: The main control chip includes a test pin, and the test pin is connected to a first test point.

10. A lighting device, comprising a lighting device body (4) and a lighting device control circuit according to any one of claims 1 to 9, wherein the control circuit is built into the lighting device body (4); It also includes a touch button (5) and a charging inlet (6) arranged outside the lighting device body (4); The touch button (5) is electrically connected to the main control module (1) of the control circuit, and the charging access port (6) is electrically connected to the charging management module (2) of the control circuit.

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