High-voltage light string controller

1 . A high-voltage light string controller, comprising a first power supply module, a main control module, and a protection module, wherein the first power supply module is configured for being connected to a mains supply to supply power to the main control module; the main control module is configured for sending a control signal to a light string to turn on or turn off the light string or to switch a color; the protection module is configured for identifying a magnitude of a current in the first power supply module, converting the current into a detection signal, and then sending the detection signal to the main control module; the main control module is configured for receiving and judging the detection signal; and when the detection signal exceeds a preset value, the main control module is configured for sending a control signal to turn off the light string;

wherein the protection module comprises a conversion circuit and a detection circuit; the detection signal comprises a level signal; the conversion circuit is configured for obtaining the current at the first power supply module and converting the current into a voltage; the detection circuit is configured for obtaining the voltage at the conversion circuit, converting the voltage into the level signal, and sending the level to the main control module; and the main control module is configured for receiving and judging a magnitude of the level signal.

2 . The high-voltage light string controller according to claim 1 , wherein the controller further comprises a photosensitive timing module; the photosensitive timing module is configured for sending a photosensitive signal to the main control module by sensing external light, and the main control module is configured for receiving the photosensitive signal and sending a control signal instantly or in a delayed manner to turn on or turn off the light string.

3 . The high-voltage light string controller according to claim 2 , wherein the controller is provided with a first connector and a second connector; the first connector is configured for being connected to a power source; the second connector is configured for being detachably abutted with the light string; the controller is provided with an indicator lamp; the indicator lamp is configured to display an on/off state of the light string; the main control module is connected in parallel with a filtering circuit; the main control module is provided with a first control pin, a second control pin, a detection pin, a photosensitive pin, and an indication pin; the first control pin is suitable-configured for emitting the control signal; the main control module is connected to a color adjustment switch; the second control pin is configured for receiving a signal of the color adjustment switch; the detection pin is configured for receiving the detection signal; the photosensitive pin is configured for receiving the photosensitive signal; and the indication pin is configured for sending an indication signal to the indicator lamp.

4 . The high-voltage light string controller according to claim 1 , wherein the conversion circuit comprises a first conversion resistor and a second conversion resistor; the first conversion resistor and the second conversion resistor are connected in parallel to the first power supply module; and the detection circuit is configured for obtaining a voltage at two ends of the first conversion resistor and the second conversion resistor.

5 . The high-voltage light string controller according to claim 4 , wherein the controller is provided with a first connector and a second connector; the first connector is configured for being connected to a power source; the second connector is configured for being detachably abutted with the light string; the controller is provided with an indicator lamp; the indicator lamp is configured to display an on/off state of the light string; the main control module is connected in parallel with a filtering circuit; the main control module is provided with a first control pin, a second control pin, a detection pin, a photosensitive pin, and an indication pin; the first control pin is configured for emitting the control signal; the main control module is connected to a color adjustment switch; the second control pin is configured for receiving a signal of the color adjustment switch; the detection pin is configured for receiving the detection signal; the photosensitive pin is configured for receiving the photosensitive signal; and the indication pin is configured for sending an indication signal to the indicator lamp.

6 . The high-voltage light string controller according to claim 1 , wherein the controller is provided with a first connector and a second connector; the first connector is configured for being connected to a power source; the second connector is configured for being detachably abutted with the light string; the controller is provided with an indicator lamp; the indicator lamp is configured to display an on/off state of the light string; the main control module is connected in parallel with a filtering circuit; the main control module is provided with a first control pin, a second control pin, a detection pin, a photosensitive pin, and an indication pin; the first control pin is configured for emitting the control signal; the main control module is connected to a color adjustment switch; the second control pin is configured for receiving a signal of the color adjustment switch; the detection pin is configured for receiving the detection signal; the photosensitive pin is configured for receiving the photosensitive signal; and the indication pin is configured for sending an indication signal to the indicator lamp.

7 . The high-voltage light string controller according to claim 1 , wherein the controller further comprises a switch module; the switch module is connected to the main control module, the first power supply module, and the light string; and the switch module is configured for turning off or turning on power of the first power supply module to the light string when receiving the control signal.

8 . The high-voltage light string controller according to claim 7 , wherein the controller is provided with a first connector and a second connector; the first connector is configured for being connected to a power source; the second connector is configured for being detachably abutted with the light string; the controller is provided with an indicator lamp; the indicator lamp is configured to display an on/off state of the light string; the main control module is connected in parallel with a filtering circuit; the main control module is provided with a first control pin, a second control pin, a detection pin, a photosensitive pin, and an indication pin; the first control pin is configured for emitting the control signal; the main control module is connected to a color adjustment switch; the second control pin is configured for receiving a signal of the color adjustment switch; the detection pin is configured for receiving the detection signal; the photosensitive pin is configured for receiving the photosensitive signal; and the indication pin is configured for sending an indication signal to the indicator lamp.

9 . The high-voltage light string controller according to claim 1 , wherein the main control module is provided with a memory module; the memory module is configured for storing a running state of the main control module before power outage; and the memory module is configured for restoring the running state before power outage after the main control module is re-energized.

10 . The high-voltage light string controller according to claim 9 , wherein the controller is provided with a first connector and a second connector; the first connector is configured for being connected to a power source; the second connector is configured for being detachably abutted with the light string; the controller is provided with an indicator lamp; the indicator lamp is configured to display an on/off state of the light string; the main control module is connected in parallel with a filtering circuit; the main control module is provided with a first control pin, a second control pin, a detection pin, a photosensitive pin, and an indication pin; the first control pin is configured for emitting the control signal; the main control module is connected to a color adjustment switch; the second control pin is configured for receiving a signal of the color adjustment switch; the detection pin is configured for receiving the detection signal; the photosensitive pin is configured for receiving the photosensitive signal; and the indication pin is configured for sending an indication signal to the indicator lamp.

11 . The high-voltage light string controller according to claim 1 , wherein a first resistance-capacitance step-down circuit or a constant-current circuit is arranged in the first power supply module.

12 . The high-voltage light string controller according to claim 11 , wherein the controller is provided with a first connector and a second connector; the first connector is configured for being connected to a power source; the second connector is configured for being detachably abutted with the light string; the controller is provided with an indicator lamp; the indicator lamp is configured to display an on/off state of the light string; the main control module is connected in parallel with a filtering circuit; the main control module is provided with a first control pin, a second control pin, a detection pin, a photosensitive pin, and an indication pin; the first control pin is configured for emitting the control signal; the main control module is connected to a color adjustment switch; the second control pin is configured for receiving a signal of the color adjustment switch; the detection pin is configured for receiving the detection signal; the photosensitive pin is configured for receiving the photosensitive signal; and the indication pin is configured for sending an indication signal to the indicator lamp.

13 . The high-voltage light string controller according to claim 1 , wherein the controller is provided with a first connector and a second connector; the first connector is configured for being connected to a power source; the second connector is configured for being detachably abutted with the light string; the controller is provided with an indicator lamp; the indicator lamp is configured to display an on/off state of the light string; the main control module is connected in parallel with a filtering circuit; the main control module is provided with a first control pin, a second control pin, a detection pin, a photosensitive pin, and an indication pin; the first control pin is configured for emitting the control signal; the main control module is connected to a color adjustment switch; the second control pin is configured for receiving a signal of the color adjustment switch; the detection pin is configured for receiving the detection signal; the photosensitive pin is configured for receiving the photosensitive signal; and the indication pin is configured for sending an indication signal to the indicator lamp.