A synchronized bulb control system and synchronized control bulb

Abstract

The application discloses a synchronous bulb control system and a synchronous control bulb, and belongs to the field of bulb control. The synchronous bulb control system comprises a rectifying unit, a synchronous signal and control signal sampling unit, a control unit, an MCU power supply unit and an LED component. The rectifying unit is connected with an external power supply circuit. The synchronous signal and control signal sampling unit is connected with the rectifying unit or the external power supply circuit and is used for counting the number of period changes of AC or control signal pulses and the period to provide a synchronous signal and collect a control signal input by an external controller. The control unit receives the synchronous signal and / or the control signal output by the synchronous signal and control signal sampling unit. The MCU power supply unit is connected with the rectifying unit and the control unit respectively and is used for supplying power to the control unit. The LED component comprises one or more LED units, is connected with the rectifying unit and the control unit respectively and is controlled by the control unit. The scheme is reliable, has high synchronization efficiency and good use stability.

Description

Technical Field

[0001] The present invention relates to the field of light bulb control devices and light bulbs, and in particular to a synchronous light bulb control system and a synchronously controlled light bulb. Background Art

[0002] As an important lighting tool, light bulbs are widely used in interior decoration and creating atmosphere in public places. Since decorative light bulbs are mostly composed of multiple LEDs connected in series, in order to enable the LEDs to be synchronously controlled according to certain rules, designers usually use matching light bulb control systems according to corresponding functional requirements to control the lighting, such as bright-dark and marquee effects.

[0003] In traditional control schemes, most of them are controlled by matching control units according to the number of LED lights. Since multiple control units control multiple LED light-emitting units, there will be response differences due to the synchronization of the control units. After a period of use, there will be large deviations in the timing of each control unit, and the light emitted by the light-emitting unit will appear irregular. Although there are also light bulbs on the market that use a control chip to control the on and off of multiple LED lights, once they lose user access control, the LED lights will emit disorderly light and cannot be automatically adjusted regularly. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide a synchronous light bulb control system and a synchronously controlled light bulb that are reliable in implementation, have high synchronization efficiency, and good stability in use.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0006] A synchronous light bulb control system, comprising:

[0007] A rectifier unit, connected to an external power supply line and rectifying the input power supply current for output;

[0008] A synchronization signal and control signal sampling unit is connected to the rectifier unit or the external power supply line and is used to count the number and period of periodic changes of the AC power or control signal pulses to provide a synchronization signal and collect control signals input by the external controller;

[0009] a control unit connected to the synchronization signal and control signal sampling unit and receiving the synchronization signal and / or control signal output by the synchronization signal and control signal sampling unit;

[0010] The MCU power supply unit is connected to the rectifier unit and the control unit respectively and is used to supply power to the control unit;

[0011] The LED assembly includes one or more LED units. The LED assembly is respectively connected to a rectifying unit and a control unit and is controlled by the control unit.

[0012] As a possible implementation manner, further, a fuse F1 and a current-limiting resistor R1 are provided on the wire connecting the rectifier unit to the external power supply line.

[0013] As a preferred implementation option, preferably, the rectifier unit is a rectifier bridge DB1, and its pin 1 and pin 3 are respectively used to connect to the neutral and live wires of the external power supply circuit;

[0014] The fuse F1 is set on the wire connected to the external power supply line at pin 1 of the rectifier bridge DB1;

[0015] The current limiting resistor R1 is set on the wire connected to the external power supply circuit at pin 3 of the rectifier bridge DB1;

[0016] In addition, pin 4 of the rectifier bridge DB1 is grounded, and pin 2 of the rectifier bridge DB1 is connected to the MCU power supply unit, the synchronization signal and control signal sampling unit, and the LED component respectively.

[0017] As a preferred implementation option, preferably, a diode D1 and a resistor R4 are sequentially provided on the line connecting the pin 2 of the rectifier bridge DB1 to the LED component;

[0018] The anode of the diode D1 is connected to pin 2 of the rectifier bridge DB1, the cathode of the diode D1 is connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the LED assembly;

[0019] In addition, the MCU power supply unit is connected to the connection line between the diode D1 and the resistor R4.

[0020] As a preferred implementation option, preferably, the control unit includes a control chip U1;

[0021] The MCU power supply unit includes a voltage stabilizing diode ZD1 and a capacitor C4.

[0022] The pin VDD of the control chip U1, the cathode of the voltage zener diode ZD1, and one end of the capacitor C4 are all connected to the connection line between the diode D1 and the resistor R4; the pin GND of the control chip U1, the anode of the voltage zener diode ZD1, and the other end of the capacitor C4 are all grounded;

[0023] In addition, the pin SYN of the control chip U1 is connected to the synchronization signal and control signal sampling unit; the control chip U1 also has an output pin, and is connected to the LED component through the output pin.

[0024] As a preferred implementation option, preferably, the synchronization signal and control signal sampling unit includes a resistor R2, a resistor R3 and a capacitor C3, one end of the resistor R3 is connected to pin 2 of the rectifier DB1, the other end of the resistor R3, one end of the resistor R2, and one end of the capacitor C3 are all connected to pin SYN of the control chip U1, and the other end of the resistor R2 and the other end of the capacitor C3 are both grounded.

[0025] As a preferred implementation option, preferably, the number of the LED units is 4, and one end of the 4 LED units is connected to the other end of the resistor R4;

[0026] The output pins of the control chip U1 include pins OUT1, OUT2, OUT3 and OUT4 corresponding to the other ends of the four LED units, and pins OUT1, OUT2, OUT3 and OUT4 are respectively connected to the other ends of the four LED units.

[0027] As a preferred implementation option, preferably, the model of the control chip U1 is FT60F021-RB.

[0028] As a preferred implementation option, preferably, the LED unit is a single-color LED unit or a mixed-color LED unit, and the mixed LED unit is an RGB LED unit or an RGBW LED unit.

[0029] As a preferred implementation option, preferably, the LED units of the LED assembly are connected in series, in parallel or in mixed connection.

[0030] Based on the above-mentioned light bulb control system solution, the present invention further provides a synchronously controlled light bulb, which includes the above-mentioned synchronous light bulb control system.

[0031] By adopting the above-mentioned technical solution, the present invention has the following beneficial effects compared with the prior art: the present solution cleverly counts the number and period of alternating current cycle changes through the synchronization signal and control signal sampling unit to provide a synchronization signal and collect the control signal input by the external controller, and then transmits it to the control unit, which automatically detects and identifies it, so that the control unit can determine whether there is a control signal from the external controller connected, thereby controlling the automatic synchronization control adjustment of the LED lamp group, so that the LED units of the LED lamp group can maintain reliable and stable synchronous operation; at the same time, the present solution also cleverly adds a diode D1 to prevent crosstalk between the external control signal and the external power supply line from causing signal waveform distortion, thereby improving the control stability and accuracy of the LED lamp group. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a simplified connection diagram of the synchronous light bulb control system according to Example 1 of the present invention;

[0034] Figure 2 1 is a schematic diagram of a simplified circuit connection of a synchronous light bulb control system according to Example 1 of the present invention;

[0035] Figure 3 This is a simplified connection diagram of a synchronous light bulb control system according to embodiment 2 of the present invention. DETAILED DESCRIPTION

[0036] The present invention will be described in further detail below with reference to the accompanying drawings and examples. It is particularly noted that the following examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Similarly, the following examples are only some embodiments of the present invention and are not intended to be exhaustive. All other embodiments obtained by those of ordinary skill in the art without creative effort are intended to fall within the scope of protection of the present invention.

[0037] Example 1

[0038] like Figure 1 or Figure 2 As shown, the present invention provides a synchronous light bulb control system, comprising:

[0039] Rectifier unit 1, connected to the external power supply line and rectifies the input power supply current for output;

[0040] The synchronization signal and control signal sampling unit 2 is connected to the rectifier unit 1 and is used to count the number and period of periodic changes of the AC power or control signal pulses to provide a synchronization signal and collect the control signal input by the external controller;

[0041] The control unit 3 is connected to the synchronization signal and control signal sampling unit 2 and receives the synchronization signal and / or control signal output by the synchronization signal and control signal sampling unit 2;

[0042] The MCU power supply unit 4 is connected to the rectifier unit 1 and the control unit 3 respectively and is used to supply power to the control unit;

[0043] The LED assembly 5 includes one or more LED units arranged in parallel. The LED assembly 5 is connected to the rectifier unit 1 and the control unit 3 respectively, and is controlled by the control unit 3 .

[0044] Among them, the external controller mentioned in this solution is a conventional external controller, which realizes the input of control signals by connecting to an external power supply line. This is a conventional existing technology and its principle will not be described in detail.

[0045] In addition, Figure 1 Based on the Figure 2 As shown, in order to improve the current stability of the access system, the rectifier unit 1 in this solution is further provided with a fuse F1 and a current limiting resistor R1 on the wire connected to the external power supply line; the rectifier unit 1 is a rectifier bridge DB1, and its pins 1 and 3 are respectively used to connect to the neutral and live wires of the external power supply line;

[0046] The fuse F1 is set on the wire connected to the external power supply line by pin 1 of the rectifier bridge DB1. The main function of the fuse F1 is to provide current protection to prevent the line from overloading and causing a short circuit in the control system.

[0047] The current limiting resistor R1 is set on the wire connected to the external power supply circuit at pin 3 of the rectifier bridge DB1;

[0048] In addition, pin 4 of the rectifier bridge DB1 is grounded, and pin 2 of the rectifier bridge DB1 is connected to the MCU power supply unit, the synchronization signal and control signal sampling unit, and the LED component respectively.

[0049] In this solution, as a preferred implementation option, preferably, a diode D1 and a resistor R4 are sequentially provided on the line connecting the pin 2 of the rectifier bridge DB1 to the LED component;

[0050] Among them, the positive electrode of the diode D1 is connected to pin 2 of the rectifier bridge DB1, the negative electrode of the diode D1 is connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the LED component; the main function of the diode D1 is to prevent crosstalk between the control signal and the external power supply line (power supply) from causing waveform distortion of the control signal, thereby affecting the control reliability of the LED component 5.

[0051] In addition, the MCU power supply unit 4 is connected to the connection line between the diode D1 and the resistor R4.

[0052] As a preferred implementation option, preferably, the control unit 3 includes a control chip U1, whose model can be FT60F021-RB, and the MCU power supply unit 4 includes a voltage regulator diode ZD1 and a capacitor C4.

[0053] The pin VDD of the control chip U1, the cathode of the voltage zener diode ZD1, and one end of the capacitor C4 are all connected to the connection line between the diode D1 and the resistor R4; the pin GND of the control chip U1, the anode of the voltage zener diode ZD1, and the other end of the capacitor C4 are all grounded;

[0054] In addition, the pin SYN of the control chip U1 is connected to the synchronization signal and control signal sampling unit 2; the control chip U1 also has an output pin, and is connected to the LED component through the output pin.

[0055] In this solution, as a preferred implementation option, preferably, the synchronization signal and control signal sampling unit 2 includes a resistor R2, a resistor R3 and a capacitor C3, one end of the resistor R3 is connected to pin 2 of the rectifier DB1, the other end of the resistor R3, one end of the resistor R2, and one end of the capacitor C3 are all connected to the pin SYN of the control chip U1, and the other end of the resistor R2 and the other end of the capacitor C3 are both grounded.

[0056] As an example, the number of LED units described in this embodiment is 4 and they are connected in parallel, and one end of the 4 LED units is connected to the other end of the resistor R4; the output pins of the control chip U1 include pin OUT1, pin OUT2, pin OUT3 and pin OUT4 corresponding to the other ends of the 4 LED units, and pin OUT1, pin OUT2, pin OUT3 and pin OUT4 are respectively connected to the other ends of the 4 LED units.

[0057] As for the color rendering scheme of the LED unit, in this solution, the LED unit can be a single-color LED unit or a mixed-color LED unit, and the mixed LED unit is an RGB LED unit or an RGBW LED unit.

[0058] Based on the above, the working principle of this synchronous bulb control system is as follows:

[0059] This solution uses the pin SYN of the control chip U1 to detect the voltage-divided signal value from the resistor R3 and the resistor R2 to determine the control signal input.

[0060] When the user does not connect to an external controller, the synchronization signal and control signal sampling unit counts the number and period of AC cycle changes to provide a synchronization signal to the SYN pin of the control chip U1. The SYN pin of the control chip U1 will automatically detect and determine the cycle frequency of the AC input signal to achieve synchronous change control of the LED units on the same circuit.

[0061] When the user connects to an external controller, the synchronization signal and control signal sampling unit collects the control signal and provides it to the pin SYN of the control chip U1. The pin SYN of the control chip U1 will automatically detect and identify the control signal and can automatically identify the output signal of the external controller, thereby sharing the same control unit 3 with the LED unit to achieve unified and synchronous control of the color change of the LED unit.

[0062] Example 2

[0063] like Figure 3 As shown, this embodiment is substantially the same as embodiment 1, except that, in this embodiment, the synchronization signal and control signal sampling unit is connected to the external power supply line and is used to count the number and period of periodic changes of the AC power or control signal pulses to provide synchronization signals and collect control signals input by the external controller.

[0064] The remaining connection relationships and general control mechanisms of this embodiment are roughly the same as those of Example 1 and will not be described in detail.

[0065] The above descriptions are only some embodiments of the present invention and do not limit the scope of protection of the present invention. Any equivalent device or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A synchronous light bulb control system, characterized in that: It includes: A rectifier unit, connected to an external power supply line and rectifying the input power supply current for output; A synchronization signal and control signal sampling unit is connected to the rectifier unit or the external power supply line and is used to count the number and period of periodic changes of the AC power or control signal pulses to provide a synchronization signal and collect control signals input by the external controller; a control unit connected to the synchronization signal and control signal sampling unit and receiving the synchronization signal and / or control signal output by the synchronization signal and control signal sampling unit; The MCU power supply unit is connected to the rectifier unit and the control unit respectively and is used to supply power to the control unit; The LED assembly is connected to the rectifier unit and the control unit and is controlled by the control unit; it includes one or more LED units, and the LED units are arranged in series, parallel or mixed; Among them, the rectifier unit is a rectifier bridge DB1, whose pins 1 and 3 are respectively used to connect to the neutral and live wires of the external power supply circuit; pin 4 of the rectifier bridge DB1 is grounded, and pin 2 of the rectifier bridge DB1 is connected to the MCU power supply unit, the synchronization signal and control signal sampling unit, and the LED component respectively; a diode D1 and a resistor R4 are also provided in sequence on the line connecting pin 2 of the rectifier bridge DB1 to the LED component; the positive electrode of the diode D1 is connected to pin 2 of the rectifier bridge DB1, the negative electrode of the diode D1 is connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the LED component; The MCU power supply unit is connected to the connection line between the diode D1 and the resistor R4; the MCU power supply unit includes a voltage regulator diode ZD1 and a capacitor C4. The control unit includes a control chip U1; a pin VDD of the control chip U1, a cathode of a voltage-stabilizing diode ZD1, and one end of a capacitor C4 are all connected to a connection line between the diode D1 and the resistor R4; a pin GND of the control chip U1, an anode of the voltage-stabilizing diode ZD1, and the other end of the capacitor C4 are all grounded; a pin SYN of the control chip U1 is connected to a synchronization signal and control signal sampling unit; the control chip U1 also has an output pin, which is connected to the LED assembly via the output pin; The synchronization signal and control signal sampling unit includes a resistor R2, a resistor R3 and a capacitor C3. One end of the resistor R3 is connected to pin 2 of the rectifier DB1, and the other end of the resistor R3, one end of the resistor R2, and one end of the capacitor C3 are all connected to the pin SYN of the control chip U1. The other end of the resistor R2 and the other end of the capacitor C3 are both grounded.

2. The synchronous light bulb control system according to claim 1, wherein: The wire connecting the rectifier unit to the external power supply line is also provided with a fuse F1 and a current-limiting resistor R1.

3. The synchronous light bulb control system according to claim 2, wherein: The fuse F1 is provided on the wire connected between pin 1 of the rectifier bridge DB1 and the external power supply circuit; the current-limiting resistor R1 is provided on the wire connected between pin 3 of the rectifier bridge DB1 and the external power supply circuit.

4. The synchronous light bulb control system according to claim 3, wherein: There are four LED units, and one end of each of the four LED units is connected to the other end of the resistor R4; the output pins of the control chip U1 include pin OUT1, pin OUT2, pin OUT3, and pin OUT4, which correspond one-to-one to the other ends of the four LED units, and pin OUT1, pin OUT2, pin OUT3, and pin OUT4 are respectively connected to the other ends of the four LED units.

5. The synchronous light bulb control system according to any one of claims 1 to 4, characterized in that: The model of the control chip U1 is FT60F021-RB.

6. The synchronous light bulb control system according to claim 1, wherein: The LED unit is a single-color LED unit or a mixed-color LED unit, and the mixed-color LED unit is an RGB LED unit or an RGBW LED unit.

7. A synchronous control light bulb, characterized in that: It includes the synchronous bulb control system according to any one of claims 1 to 6.

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