Infrared based controller for RGB lamp strip

• US 10,624,181 B1
• Filed: 03/15/2019
• Issued: 04/14/2020
• Est. Priority Date: 11/23/2018
• Status: Active Grant

• Current Assignee: Ningbo Golden Land Electronics Incorporated
• Original Assignee: Ningbo Golden Land Electronics Incorporated
• Inventors: Shen, Zhengxian
• Primary Examiner(s): Taningco, Alexander H
• Assistant Examiner(s): Sathiraju, Srinivas
• Application Number:
  US16/354,706
• Time in Patent Office: 396 Days
• Field of Search: None
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/50 responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
• CPC Class Codes: H05B 47/19 via wireless transmission
• CPC Class Codes: H05B 47/195 the transmission using visible or infrared light
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The present disclosure discloses an infrared based controller for a RGB lamp strip disposed between a power source and the lamp strip. The controller comprises a first reverse protection unit, electrically connected to the power source, an infrared receiving unit electrically connected to the first reverse protection unit for receiving an infrared signal transmitted by an external infrared terminal. The control of the lamp strips by infrared and manual means is realized by the controller, and the user can switch between seven monochrome modes and the eight colored modes of the lamp strip through an infrared terminal.

Claims

1. An infrared based controller for a RGB lamp strip disposed between a power source and the lamp strip, the controller comprising:

a first reverse protection unit, electrically connected to the power source;

an infrared receiving unit electrically connected to the first reverse protection unit for receiving an infrared signal transmitted by an external infrared terminal;

a control unit electrically connected to the first reverse protection unit and the infrared receiving unit for receiving the infrared signal and issuing a control signal according to the infrared signal;

a color adjustment unit electrically connected to the first reverse protection unit and the control unit for adjusting a flicker color and a flicker frequency of the lamp strip according to the control signal;

a voltage stabilizing unit electrically connected to the first reverse protection unit, the control unit and the color adjustment unit, respectively, for performing voltage stabilization processing on the control unit and the color adjustment unit; and

a second reverse protection unit, disposed between the color adjustment unit and the lamp strip;

wherein the color adjustment unit is composed of a MOS transistor, gates of the MOS transistor are electrically connected to the control unit and the first reverse protection unit, respectively, a source of the MOS transistor is electrically connected to the first reverse protection unit, and a drain of the MOS transistor is electrically connected to the second reverse protection unit.

2. The controller according to claim 1, wherein the control unit is composed of a control chip, a power supply pin of the control chip is electrically connected to the first reverse protection unit, a signal input pin of the control chip is coupled to an output terminal of the infrared receiving unit, and an output pin of the control chip is electrically coupled to the color adjustment unit.

3. The controller according to claim 2, wherein the infrared receiving unit is composed of an infrared receiving chip, an output pin of the infrared receiving chip is electrically connected to a signal input pin of the control unit, the input pin is connected to the first reverse protection circuit, and a second pin is grounded.

4. A power plug comprising the controller of claim 3, and a housing and a power converter disposed inside the housing, wherein the controller is disposed in the housing, and the power converter is electrically coupled to the controller.

5. The controller according to claim 2, wherein the voltage stabilizing unit is composed of a voltage stabilizing chip.

6. A power plug comprising the controller of claim 5, and a housing and a power converter disposed inside the housing, wherein the controller is disposed in the housing, and the power converter is electrically coupled to the controller.

7. The controller according to claim 2, wherein the controller further includes a manual control unit including a button that is connected at one end to a manual signal input pin of the control chip and at the other end to a ground.

8. A power plug comprising the controller of claim 7, and a housing and a power converter disposed inside the housing, wherein the controller is disposed in the housing, and the power converter is electrically coupled to the controller.

9. The controller according to claim 2, wherein the control chip is further electrically connected to a crystal oscillator circuit.

10. A power plug comprising the controller of claim 9, and a housing and a power converter disposed inside the housing, wherein the controller is disposed in the housing, and the power converter is electrically coupled to the controller.

11. The controller according to claim 1, wherein the control chip is further electrically connected to a crystal oscillator circuit, the second reverse protection circuit includes a resistor, a capacitor and a diode connected in parallel, the anode of the diode is connected to the source of the MOS transistor, and the lamp strip is connected in parallel with the diode.

12. A power plug comprising the controller of claim 11, and a housing and a power converter disposed inside the housing, wherein the controller is disposed in the housing, and the power converter is electrically coupled to the controller.

13. The controller according to claim 1, wherein the first reverse protection circuit includes a diode having one end connected to the power supply and the other end grounded, and a Zener diode and a capacitor connected in parallel with the diode, anodes of the diode and the Zener diode are grounded, and the Zener diode is connected in series with a resistor.

14. A power plug comprising the controller of claim 13, and a housing and a power converter disposed inside the housing, wherein the controller is disposed in the housing, and the power converter is electrically coupled to the controller.

15. A power plug comprising the controller of claim 2, and a housing and a power converter disposed inside the housing, wherein the controller is disposed in the housing, and the power converter is electrically coupled to the controller.

16. A power plug comprising the controller of claim 1, and a housing and a power converter disposed inside the housing, wherein the controller is disposed in the housing, and the power converter is electrically coupled to the controller.