Time-delay lighting circuit and device thereof

A time-delay lighting circuit for controlling a light emitting component, an input end of the time-delay lighting circuit being connected to an external power source via a control switch, comprising:

• an AC-DC converter, a first voltage-current conversion circuit, a switch status detection circuit, a second voltage-current conversion circuit, a charging controller, and an energy storage and discharge device;
• wherein:
• the AC-DC converter is connected to the first voltage-current conversion circuit, and the first voltage-current conversion circuit is connected to the light emitting component;
• the AC-DC converter is connected to the switch status detection circuit and the charging controller, respectively, the switch status detection circuit is connected to the second voltage-current conversion circuit, the energy storage and discharge device is connected to the charging controller and the second voltage-current conversion circuit, respectively, and the second voltage-current conversion circuit is connected to the light emitting component;
• the switch status detection circuit is configured to detect an on/off status of the control switch, and when the control switch is detected to be switched off, output a switch-on signal to the second voltage-current conversion circuit;
• the second voltage-current conversion circuit is configured to receive the switch-on signal outputted by the switch status detection circuit, and control the energy storage and discharge device to provide a voltage satisfying preset conditions to the light emitting component;
• and
• the charging controller is configured to charge the energy storage and discharge device when the AC-DC converter outputs a direct voltage.

A time-delay lighting circuit for controlling a light emitting component, an input end of the time-delay lighting circuit being connected to an external power source via a control switch, comprising:

• a first voltage-current conversion circuit configured to convert a current inputted from the external power source to a current satisfying working conditions of the light emitting component;
• an energy storage and discharge device configured to provide power to the light emitting component when the control switch is switched off to disconnect the external power source from the time-delay lighting circuit;
• a charging controller configured to charge the energy storage and discharge device when the control switch is switched on to connect the external power source to the time-delay lighting circuit;
• and
• a second voltage-current conversion circuit configured to convert a current inputted from the energy storage and discharge device to the current satisfying working conditions of the light emitting component;
• wherein:
• an input end of the first voltage-current conversion circuit is connected to the external power source via the control switch, and an output end of the first voltage-current conversion circuit is connected to the light emitting component;
• the second voltage-current conversion circuit is connected to the energy storage and discharge device and the light emitting component, respectively;
• and
• the charging controller is connected to the external power source and the energy storage and discharge device, respectively.