Lamp color temperature changing system without generating flicker

Abstract

The invention relates to a flicker-free lamp color temperature changing system, which comprises a signal transmitting module, a signal receiving module, a power supply module, a color temperature changing module and a color temperature changing module, wherein the signal transmitting module is provided with a power supply unit and a microcontroller unit; the lamp module is provided with a lamp unit and a logic signal unit; the power supply unit supplies power to the microcontroller unit and directly supplies power to the lamp unit, so that when the power supply unit operates, the lamp unit can emit light continuously, the microcontroller unit sends an instruction of changing color temperature to the lamp unit through the logic signal unit, and the lamp unit can change the color temperature in a continuous light emitting state at the moment. Therefore, the flicker phenomenon of discontinuous power of the lamp unit is avoided.

Description

Technical Field

[0001] This invention relates to lighting systems, and in particular to a lighting color temperature change system that does not produce flicker. When the color temperature of the lighting fixture is changed, the lighting fixture does not flicker, thereby achieving the purpose of stable color change of the lighting fixture. Background Technology

[0002] In conventional lighting fixture structures, the fixtures are connected to the power source via an MCU (Microcontroller Unit). The MCU can receive signals, translate them, and command the fixtures to change their color temperature or brightness.

[0003] However, since the power source is continuously operating, when the MCU receives a color temperature change command, the MCU will stop outputting the original signal for a short period of time and then output a new signal to the lamp to change the color temperature. At this time, the lamp will be turned off because there is no signal from the MCU to accompany the power. It can only emit light at the corresponding color temperature after the MCU inputs a new signal. During this power interruption, the lamp will flicker, which will have an adverse effect on the lighting or display function.

[0004] Therefore, how to solve the above problems is the primary issue that this invention aims to address. Summary of the Invention

[0005] One objective of this invention is to provide a lamp color temperature change system that does not produce flicker, which allows the lamp unit to receive power directly and continuously, and directly changes the color of the lamp unit when the color temperature changes.

[0006] To achieve the aforementioned objective, the present invention provides a flicker-free lamp color temperature change system, comprising:

[0007] A signal transmitting module includes a power supply unit, a microcontroller unit, and a signal receiving unit;

[0008] A lighting module comprises a circuit unit, a lighting unit, a logic signal unit, and a driver unit;

[0009] The power supply unit provides power to the microcontroller unit, the circuit unit and directly to the lighting unit. The signal receiving unit is connected to the microcontroller unit and transmits control signals from the signal receiving unit to the microcontroller unit. The microcontroller unit is connected to the logic signal unit.

[0010] Since the lighting unit receives power directly from the power supply unit, it will continuously emit light when the power supply unit is operating. The microcontroller unit sends instructions to the lighting unit to change the color temperature via the logic signal unit and the driver unit. At this time, the lighting unit can change the color temperature while continuously emitting light to avoid the flickering phenomenon caused by discontinuous power supply.

[0011] Preferably, the microcontroller unit is connected to a fan drive circuit unit, which is connected to a fan motor unit. The microcontroller unit can generate an operation signal through the fan drive circuit unit to command the fan motor unit to operate, so that the microcontroller unit can simultaneously control the operation of the fan motor unit and the lighting module.

[0012] Preferably, the power supply unit is equipped with a rectifier to convert the AC voltage of the external AC power supply into DC voltage to supply the microcontroller unit, the circuit unit and the lighting unit.

[0013] Preferably, the power supply unit is connected to a step-down unit, which steps down the DC voltage provided by the power supply unit and then supplies it to the microcontroller unit. Similarly, the circuit unit (which is also directly connected to the power supply unit) can step down the DC voltage provided by the power supply unit and supply it to the logic signal unit, so that the microcontroller unit and the logic signal unit can operate under appropriate voltage requirements.

[0014] Preferably, a zero-crossing detection circuit unit is connected to the microcontroller unit and the fan drive circuit unit, and the zero-crossing detection circuit unit is connected to an external AC power supply to monitor the arc reaction generated by the microcontroller unit when the fan drive circuit unit is switched on and off, so as to determine whether to perform a preventive power outage for protection.

[0015] The beneficial effects of the present invention are as follows: Because the lamp unit is directly connected to the power supply unit, the lamp unit can directly and continuously obtain power. When the lamp unit changes the color temperature, the lamp unit can directly switch from one color to another. Unlike the prior art microcontroller unit, which suffers from power interruption during the conversion of old and new signals, the present invention does not produce flickering. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the system relationships of the present invention.

[0017] Signal transmission module 1 Power supply unit 11

[0018] Microcontroller Unit 12 Signal Receiving Unit 13

[0019] Fan drive circuit unit 14 Zero-crossing detection circuit unit 15

[0020] Step-down unit 16

[0021] Lighting Module 2 Circuit Unit 21

[0022] Lighting unit 22 Logic signal unit 23

[0023] Drive unit 24

[0024] Fan motor unit 3 AC power supply 4 Detailed Implementation

[0025] like Figure 1 As shown, the flicker-free lamp color temperature change system provided by the present invention includes a signal transmitting module 1, which has a power supply unit 11, a microcontroller unit 12 (MCU) and a signal receiving unit 13; and a lamp module 2, which has a circuit unit 21, a lamp unit 22, a logic signal unit 23 and a driving unit 24.

[0026] The power supply unit 11 provides power to the microcontroller unit 12, the circuit unit 21, and directly to the lighting unit 22. The signal receiving unit 13 is connected to the microcontroller unit 12 and transmits control signals to the microcontroller unit 12. The microcontroller unit 12 is connected to the logic signal unit 23. The signal receiving unit 13 can receive and transmit wireless signals, for example, wireless signals emitted by a remote control or mobile device to the signal receiving unit 13, and then the signal receiving unit 13 transmits the wireless signals to the microcontroller unit 12.

[0027] The lighting unit 22 receives power directly from the power supply unit 11. Therefore, when the power supply unit 11 is operating, the lighting unit 22 will continuously emit light. The microcontroller unit 12 sends a command to the lighting unit 22 to change the color temperature via the logic signal unit 23 and the driver unit 24. At this time, the lighting unit 22 can change the color temperature while continuously emitting light to avoid flickering due to discontinuous power supply. Therefore, as long as the power supply unit 11 remains in operation, the lighting unit 22 can receive power from the power supply unit 11 and emit light. At this time, the lighting unit 22 will only change color directly because of the color temperature change command received by the microcontroller unit 12 (via the logic signal unit 23 and the driver unit 24). There will be no power interruption due to the transition between old and new color temperature signals in the microcontroller unit 12. Therefore, flickering during color temperature changes is avoided. This can produce a stable effect for lighting or display functions and will not make users in the environment feel uncomfortable.

[0028] The microcontroller unit 12 is connected to a fan drive circuit unit 14, which is connected to a fan motor unit 3. The microcontroller unit 12 can generate an operation signal through the fan drive circuit unit 14 to command the fan motor unit 3 to operate, so that the microcontroller unit 12 can simultaneously control the operation of the fan motor unit 3 and the lighting module 2. A zero-crossing detection circuit unit 15 is connected to the microcontroller unit 12 and the fan drive circuit unit 14, and the zero-crossing detection circuit unit 15 is connected to an external AC power supply 4 to monitor the arc reaction generated when the fan drive circuit unit 14 is switched on and off by the microcontroller unit 12, so as to determine whether to perform a preventive power outage for protection. Therefore, the present invention can integrate the lighting module 2 and the fan motor unit 3, so that the microcontroller unit 12 can simultaneously control the fan motor unit 3 and the lighting module 2.

[0029] The power supply unit 11 is equipped with a rectifier (not shown) to convert the AC voltage of the external AC power supply 4 into DC voltage to supply the microcontroller unit 12, the circuit unit 21 and the lighting unit 22; and the power supply unit 11 is connected to a step-down unit 16, which steps down the DC voltage provided by the power supply unit 11 and then provides it to the microcontroller unit 12; the circuit unit 21 can also step down the DC voltage provided by the power supply unit 11 and then provide it to the logic signal unit 23, so that the microcontroller unit 12 and the logic signal unit 23 can operate under appropriate voltage requirements.

[0030] In addition, the lighting unit 22 is equipped with a plurality of LEDs (not shown). The logic signal unit 23 can command different LEDs to emit their respective color temperatures via the driving unit 24, thereby creating a color mixing effect by combining LEDs with different color temperatures. Furthermore, the circuit unit 21 is also directly connected to the power supply unit 11, so the logic signal unit 23 can also continuously and directly obtain power without needing to be supplied by the microcontroller unit 12 along with the power of the control signal.

[0031] Therefore, the present invention provides power directly to the lamp unit 22 through the power supply unit 11, so that the lamp unit 22 continuously emits light. Only when the microcontroller unit 12 transmits the color temperature change command, the lamp unit 22 directly generates a color change with the corresponding color temperature. Since there is no power interruption of the microcontroller unit 12 due to the conversion of old and new signals, there is naturally no flickering phenomenon.

[0032] However, the above embodiments are only for illustrating the present invention and are not intended to limit the present invention. Therefore, any changes in values ​​or substitutions of equivalent components should still fall within the scope of the present invention.

[0033] In conclusion, since this invention can clearly demonstrate to those skilled in the art that it can achieve the aforementioned objectives, it complies with the provisions of the Patent Law, and therefore an application is filed in accordance with the law.

Claims

1. A flicker-free lamp color temperature change system, characterized in that: A signal transmitting module includes a power supply unit, a microcontroller unit, and a signal receiving unit; A lighting module comprises a circuit unit, a lighting unit, a logic signal unit, and a driver unit; The power supply unit provides power to the microcontroller unit, the circuit unit and directly to the lighting unit. The signal receiving unit is connected to the microcontroller unit and transmits control signals from the signal receiving unit to the microcontroller unit. The microcontroller unit is connected to the logic signal unit. The circuit unit transmits power to the logic signal unit, and the microcontroller unit translates the control signal and transmits it to the logic signal unit. The logic signal unit generates a color temperature adjustment signal and sends it to the drive unit, which then commands the lamp unit to change the color temperature. Since the lighting unit receives power directly from the power supply unit, it will continuously emit light when the power supply unit is operating. The microcontroller unit sends instructions to the lighting unit to change the color temperature via the logic signal unit and the driver unit. At this time, the lighting unit can change the color temperature while continuously emitting light to avoid the flickering phenomenon caused by discontinuous power supply.

2. The flicker-free lamp color temperature change system as described in claim 1, characterized in that: The microcontroller unit is connected to a fan drive circuit unit, which is connected to a fan motor unit. The microcontroller unit can generate an operation signal through the fan drive circuit unit to command the fan motor unit to operate, so that the microcontroller unit can simultaneously control the operation of the fan motor unit and the lighting module.

3. The flicker-free lamp color temperature change system as described in claim 1, characterized in that: The power supply unit is equipped with a rectifier that converts the AC voltage of the external AC power supply into DC voltage to supply the microcontroller unit, the circuit unit, and the lighting unit.

4. The flicker-free lamp color temperature change system as described in claim 1, characterized in that: The power supply unit is connected to a step-down unit, which steps down the DC voltage provided by the power supply unit and then supplies it to the microcontroller unit.

5. The flicker-free lamp color temperature change system as described in claim 1, characterized in that: This circuit unit can step down the DC voltage provided by the power supply unit and then provide it to the logic signal unit.

6. The flicker-free lamp color temperature change system as described in claim 2, characterized in that: A zero-crossing detection circuit unit is connected to the microcontroller unit and the fan drive circuit unit, and the zero-crossing detection circuit unit is connected to an external AC power supply.

7. The flicker-free lamp color temperature change system as described in claim 1, characterized in that: This circuit unit is directly connected to the power supply unit.

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