Power supply capable of displaying power use condition of individual loads

• US 20070007820A1
• Filed: 07/06/2005
• Published: 01/11/2007
• Est. Priority Date: 07/06/2005
• Status: Abandoned Application

• Current Assignee: Zippy Technology Corporation
• Original Assignee: Zippy Technology Corporation
• Inventors: Chen, Tsung-Chun, Lee, Tsung-Te
• Application Number:
  US11/174,512
• Publication Number:
  US 20070007820A1
• Time in Patent Office: Days
• US Class Current: 307/11
• CPC Class Codes: G01R 21/133 by using digital technique

Abstract

A power supply capable of displaying power use conditions of individual loads includes a power detection element located on a power supply circuit between a second side rectification voltage stabilizing circuit on the circuit of a power supply and each DC output power supply of loads at the rear end. The power detection element generates electric alterations of the DC output power supply and is coupled to a power conversion unit via a connection line to generate a power detection value. The power detection value is output to a load power display unit which displays a power value corresponding to each DC output power supply in a use condition. One of the loads may be connected to a reference ground, and the power value of total DC output power supply in use conditions can be displayed.

Claims

1. A power supply capable of displaying power use conditions of individual loads, comprising sequentially a first side rectification filter circuit, a transformer and a second side rectification voltage stabilizing circuit to transform and output multiple sets of DC output power supply to loads at a rear end, wherein:

the multiple sets of DC output power supply have a power supply circuit which has a power detection element linking to a power conversion unit via a connection line to generate a power detection value which is output to a load power display unit to display a power value corresponding to each DC output power supply in a use condition.

2. The power supply of claim 1, wherein one of the DC output power supply is connected to a reference ground, the power supply circuit having another power detection element connecting to the power conversion unit, the load power display unit displaying another power value corresponding to total DC output power supply in use conditions.

3. The power supply of claim 1, wherein the power supply is a switch power supply.

4. The power supply of claim 1, wherein the first side rectification filter circuit and the transformer are bridged sequentially by an EMI filter unit, a rectification filter unit and an actuation switch unit.

5. The power supply of claim 1, wherein the load power display unit is a liquid crystal display panel.

6. The power supply of claim 1, wherein the load power display unit is a pointer display device.

7. The power supply of claim 1, wherein the load power display unit is a cluster of LED lights.

8. The power supply of claim 1, wherein the power conversion unit is coupled with a power alarm circuit to receive the power detection value to output an alarm signal to alert an overloading and heavy loading condition of the loads.

9. The power supply of claim 8, wherein the power alarm circuit is a cluster of LED lights.

10. The power supply of claim 8, wherein the power alarm circuit is a buzzer.

11. The power supply of claim 1, wherein the power detection element is a resistor.

12. A power supply capable of displaying power use conditions of individual loads, comprising a first side rectification filter circuit, a transformer and a second side rectification voltage stabilizing circuit to transform and output multiple sets of DC output power supply to loads at a rear end, wherein:

one of sets the DC output power supply is connected to a reference ground and has a power supply circuit which has a power detection element linking to a power conversion unit via a connection line to generate a power detection value which is output to a load power display unit to display a power value corresponding to total DC output power supply in use conditions.

13. The power supply of claim 12, wherein the first side rectification filter circuit and the transformer are bridged sequentially by an EMI filter unit, a rectification filter unit and an actuation switch unit.

14. The power supply of claim 12, wherein the load power display unit is a liquid crystal display panel.

15. The power supply of claim 12, wherein the load power display unit is a pointer display device.

16. The power supply of claim 12, wherein the load power display unit is a cluster of LED lights.

17. The power supply of claim 12, wherein the power conversion unit is coupled with a power alarm circuit to receive the power detection value to output an alarm signal to alert overloading and heavy loading condition of the loads.

18. The power supply of claim 17, wherein the power alarm circuit is a cluster of LED lights.

19. The power supply of claim 17, wherein the power alarm circuit is a buzzer.

20. The power supply of claim 12, wherein the power detection element is a resistor.