USB-powered lamp strip controller

• US 10,624,180 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:
  US16/354,610
• 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 45/37 Converter circuits
• CPC Class Codes: H05B 45/44 with an active control inside an LED matrix
• CPC Class Codes: H05B 47/19 via wireless transmission

Abstract

The present disclosure relates to a USB-powered lamp strip controller which comprises a USB port for connecting the controller to a power source to supply power to the controller; an infrared receiving unit electrically connected to the USB port for receiving an infrared signal transmitted by an external infrared terminal; a control unit electrically connected to the USB port and the infrared receiving unit for receiving the infrared signal and issuing a control signal according to the infrared signal; a driving unit electrically connected to the control unit to adjust a flicker color and a flicker frequency of the lamp strip according to the control signal; and a manual control unit disposed between the USB port and the control unit for inputting a manual signal to the control unit such that the driving unit drives the lamp strip to display a plurality of modes.

Claims

1. A USB-powered lamp strip controller disposed between a power source and a lamp strip, wherein the controller comprises:

a USB port for connecting the controller to a power source to supply power to the controller;

an infrared receiving unit electrically connected to the USB port for receiving an infrared signal transmitted by an external infrared terminal;

a control unit electrically connected to the USB port and the infrared receiving unit for receiving the infrared signal and issuing a control signal according to the infrared signal;

a driving unit electrically connected to the control unit to adjust a flicker color and a flicker frequency of the lamp strip according to the control signal; and

a manual control unit disposed between the USB port and the control unit for inputting a manual signal to the control unit such that the driving unit drives the lamp strip to display a plurality of modes; and

wherein

the driving unit is composed of a first transistor, a second transistor, a third transistor, and a fourth transistor;

the output pins of two output control signals of the control unit are respectively connected to the base or gate of the third transistor and the fourth transistor;

the emitter or source of the third transistor and the fourth transistor are grounded;

the collector or drain of the third transistor and the fourth transistor are connected as an output terminal to the lamp strip;

the emitter or source of the first transistor and the second transistor are connected to the USB port;

the base or gate of the first transistor is connected to the collector or drain of the fourth transistor and the second transistor; and

the base or gate of the second transistor is connected to the collector or drain of the third transistor and the first transistor.

2. The USB-powered lamp strip controller according to claim 1, wherein the control unit is composed of a control chip, the infrared receiving unit is composed of an infrared receiving chip, an input pin of the control chip is electrically connected to the USB port, and a signal input pin of the control chip is electrically connected to an output pin of the infrared receiving chip.

3. The USB-powered lamp strip controller according to claim 2, wherein the control chip is further electrically coupled to a crystal oscillator circuit.

4. The USB-powered lamp strip controller according to claim 2, wherein the manual control unit includes a button having one end connected to a manual signal input pin of the control chip and the other end grounded.

5. The USB-powered lamp strip controller according to claim 4, wherein the manual signal input pin of the control chip is further connected to the USB port through an LED and a resistor, and the diode LED and the resistor are connected in series.

6. The USB-powered lamp strip controller according to claim 1, wherein the emitters of the third transistor and the fourth transistor are grounded via a resistor (R8).

7. The USB-powered lamp strip controller according to claim 1, wherein the transistor is a triode or a MOS transistor.