Light emitting diode lighting device and light emitting diode lamp

• US 8,884,533 B2
• Filed: 08/10/2012
• Issued: 11/11/2014
• Est. Priority Date: 04/20/2012
• Status: Active Grant

• Current Assignee: Delta Electronics Company Limited (Delta Electronics Incorporated)
• Original Assignee: Delta Electronics Company Limited (Delta Electronics Incorporated)
• Inventors: Zhang, Weiqiang, Xu, Lizhi, Ying, Jianping
• Primary Examiner(s): Hammond, Crystal L
• Application Number:
  US13/572,122
• Publication Number:
  US 20130278152A1
• Time in Patent Office: 823 Days
• Field of Search: None
• US Class Current: 315/185.R
• CPC Class Codes: H05B 45/382 with galvanic isolation between input and output
• CPC Class Codes: H05B 45/39 Circuits containing inverter bridges
• CPC Class Codes: H05B 45/42 Antiparallel configurations

Abstract

The present application discloses a light emitting diode lighting device and a light emitting diode lamp, the light emitting diode lighting device includes: a fluorescent lamp ballast outputting an alternating current; and at least one first light emitting diode lamp coupled with the fluorescent lamp ballast, and comprising a rectifying and filtering circuit and at least one light emitting diode string coupled with the rectifying and filtering circuit. The present application directly replaces a conventional fluorescent lamp tube with a properly designed LED lamp without any other modifications when reinstallation a conventional fluorescent lamp lighting device into a light emitting diode lighting device, which may reduce the cost of reinstallation, and greatly facilitate the user.

Claims

1. A light emitting diode lighting device, comprising:

a fluorescent lamp ballast outputting an alternating current; and

at least one light emitting diode lamp coupled with the fluorescent lamp ballast,

wherein the light emitting diode lamp comprises a rectifying and filtering circuit and at least one light emitting diode string coupled with the rectifying and filtering circuit, and/or comprises at least one set of anti-parallel light emitting diode strings which are coupled with the fluorescent lamp ballast.

2. According to the light emitting diode lighting device of claim 1, wherein the rectifying and filtering circuit comprises:

a rectifier bridge coupled with the fluorescent lamp ballast; and

a filter capacitor coupled with the rectifier bridge.

3. According to the light emitting diode lighting device of claim 1, further comprising:

a current limiting element coupled between the rectifying and filtering circuit and the fluorescent lamp ballast.

4. According to the light emitting diode lighting device of claim 3, wherein the current limiting element is a capacitor, an inductor or a resistor.

5. According to the light emitting diode lighting device of claim 1, further comprising:

a current limiting element coupled between the fluorescent lamp ballast and the at least one set of anti-parallel light emitting diode strings.

6. According to the light emitting diode lighting device of claim 5, wherein the current limiting element is a capacitor, an inductor or a resistor.

7. According to the light emitting diode lighting device of claim 1, further comprising:

at least one fluorescent lamp tube coupled with the fluorescent lamp ballast.

8. According to the light emitting diode lighting device of claim 1, wherein the fluorescent lamp ballast is a half-bridge parallel resonance circuit or a half-bridge Push-Pull circuit.

9. A light emitting diode lamp coupled with a fluorescent lamp ballast, comprising:

at least one first light emitting diode lamp comprising a rectifying and filtering circuit and at least one light emitting diode string coupled with the rectifying and filtering circuit.

10. According to the light emitting diode lamp of claim 9, further comprising at least one second light emitting diode lamp comprising at least one set of anti-parallel light emitting diode strings which is coupled with the fluorescent lamp ballast.

11. According to the light emitting diode lamp of claim 10, further comprising:

a current limiting element coupled between the fluorescent lamp ballast and the at least one set of anti-parallel light emitting diode strings.

12. According to the light emitting diode lamp of claim 11, wherein the current limiting element is a capacitor, an inductor or a resistor.

13. According to the light emitting diode lamp of claim 9, wherein the rectifying and filtering circuit comprises:

a rectifier bridge coupled with the fluorescent lamp ballast; and

a filter capacitor coupled with the rectifier bridge.

14. According to the light emitting diode lamp of claim 9, further comprising:

a current limiting element coupled between the rectifying and filtering circuit and the fluorescent lamp ballast.

15. According to the light emitting diode lamp of claim 14, wherein the current limiting element is a capacitor, an inductor or a resistor.

16. A light emitting diode lamp coupled with a fluorescent lamp ballast, comprising:

at least one light emitting diode lamp comprising at least one set of anti-parallel light emitting diode strings which is coupled with the fluorescent lamp ballast.

17. According to the light emitting diode lamp of claim 16, further comprising:

a current limiting element coupled between the fluorescent lamp ballast and the at least one set of anti-parallel light emitting diode strings.

18. According to the light emitting diode lamp of claim 17, wherein the current limiting element is a capacitor, an inductor or a resistor.