POWER SUPPLY FOR LIGHT EMITTING DIODE DEVICE

• US 20090167196A1
• Filed: 03/10/2008
• Published: 07/02/2009
• Est. Priority Date: 12/27/2007
• Status: Abandoned Application

• Current Assignee: Foxsemicon Integrated Technology Incorporated
• Original Assignee: Foxsemicon Integrated Technology Incorporated
• Inventors: WANG, CHUN-WEI, HSU, HUNG-KUANG
• Application Number:
  US12/045,161
• Publication Number:
  US 20090167196A1
• Time in Patent Office: Days
• US Class Current: 315/171
• CPC Class Codes: F03B 13/00 Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus if the apparatus aspects are predominant, see the relevant subclasses for such apparatus, e.g. H02K7/18; Power stations or aggregates incorporating only machines or engines of positive-displacement type F03C; hydraulic engineering aspects E02B; combinations with wind energy converters F03D9/008
• CPC Class Codes: F03B 13/06 Stations or aggregates of water-storage type, e.g. comprising a turbine and a pumpturbines characterised by having means for functioning alternatively as pumps F03B3/10
• CPC Class Codes: F05B 2220/60 making use of surplus or waste energy
• CPC Class Codes: F05B 2220/602 with energy recovery turbines
• CPC Class Codes: Y02B 10/50 Hydropower in dwellings
• CPC Class Codes: Y02E 10/20 Hydro energy
• CPC Class Codes: Y02E 60/16 Mechanical energy storage, e.g. flywheels or pressurised fluids

Abstract

A power supply (100) includes a generator (20) and a water circulatory channel. The generator includes an impeller (201) and an armature (203). The water circulatory channel contains water therein. The water flows along a predetermined direction in the water circulatory channel. The impeller of the generator is positioned to be at least partially submerged in and driven by the flowing water, and the impeller drives the armature to generate DC (205) for an LED lamp (30).

Claims

1. A power supply comprising:

a generator comprising an impeller and an armature; and

a water circulatory channel containing circulatory water flowing therein,

wherein the impeller of the generator is disposed in the circulatory water.

2. The power supply as described in claim 1, further comprising a reservoir for containing the water and a water pump for driving the water to flow in the channel.

3. The power supply as described in claim 2, wherein the reservoir comprises an inlet and an outlet, the generator being positioned adjacent to the inlet or the outlet of the reservoir.

4. The power supply as described in claim 3, wherein the reservoir is a swimming pool.

5. An LED device comprising:

an LED lamp;

a direct current generator; and

a water circulatory channel containing circulatory water flowing therein, the generator is disposed in the water for generating and supplying direct current to the LED lamp.

6. The LED device as described in claim 5, further comprising a rechargeable battery electrically connected with the generator.

7. The power supply as described in claim 6, further comprising a switch for controlling switching the LED lamp on/off and a light sensor for detecting brightness of ambient light, the rechargeable battery being connected to the LED lamp through the switch.

8. The power supply as described in claim 7, further comprising a mains power supply for powering the LED lamp, and a converter for converting alternating current of the mains power supply into the direct current.

9. An LED device comprising:

a circulatory channel containing circulatory water flowing therein

an LED lamp; and

a direct current generator including an impeller and an armature, the impeller being disposed in the circulatory water for being driven by the flowing water, the a direct current generator being configured for generating and supplying direct current to the LED lamp.

10. The power supply as described in claim 9, further comprising a rechargeable battery for powering the LED lamp, the direct current generator being electrically connected to and configured for recharging the rechargeable battery.