Compact and lightweight power converter for high power comsumption loads

• US 8,089,262 B2
• Filed: 07/03/2008
• Issued: 01/03/2012
• Est. Priority Date: 07/03/2008
• Status: Active Grant

• Current Assignee: Global Franchising Corp., Radioshack Online IPCO LLC
• Original Assignee: RadioShack Legacy Corporation
• Inventors: Heep, Jerry Joseph, Ko, Chuk
• Primary Examiner(s): STERRETT, JEFFREY L
• Application Number:
  US12/167,498
• Publication Number:
  US 20100002476A1
• Time in Patent Office: 1,279 Days
• Field of Search: 323/237, 323/300, 323/320, 363/34, 363/37
• US Class Current: 323/320
• CPC Class Codes: H02M 5/22 using discharge tubes with control electrode or semiconductor devices with control electrode

Abstract

An apparatus for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus includes: (a) at least one energy transferring unit coupled with the input locus and with the output locus; and (b) at least one energy storing unit coupled with the at least one energy transferring unit. The at least one energy transferring unit presents at least one predetermined range of the input voltage signal at the output locus. The at least one energy transferring unit cooperates with the at least one energy storing unit to store energy in the at least one energy storing unit and to present energy from the at least one energy storing unit at the output locus when the input voltage signal is not presented at the output locus.

Claims

1. An apparatus for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus;

said input voltage signal varying at a first frequency and having a first maximum amplitude;

the apparatus comprising;

(a) at least one signal transferring unit coupled with said input locus and with said output locus; and

(b) at least one energy storing unit coupled with said at least one signal transferring unit;

said at least one signal transferring unit including a plurality of switch units coupled for operation at a second frequency substantially equal with said first frequency to effect passing said input voltage signal to said output locus as said output voltage signal in at least one predetermined time interval of said output voltage signal;

said output voltage signal having a second maximum amplitude less than said first maximum amplitude during said at least one predetermined time interval;

said at least one signal transferring unit cooperating with said at least one energy storing unit to store energy in said at least one energy storing unit and to present energy from said at least one energy storing unit at said output locus as said desired output voltage signal when said input voltage signal is not passed to said output locus;

said desired output voltage signal presenting a generally square wave representation of said input voltage signal;

said desired output voltage signal substantially having said second maximum amplitude.

2. An apparatus for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus as recited in claim 1 wherein said input voltage signal exhibits positive signal excursions and negative signal excursions, and wherein said at least one energy storing unit comprises a first energy storing unit coupled for operating with said positive signal excursions and a second energy storing unit coupled for operating with said negative signal excursions.

3. An apparatus for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus as recited in claim 1 wherein said output voltage signal is a generally square-wave representation of said input voltage signal.

4. An apparatus for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus as recited in claim 3 wherein maximum excursions of said output voltage signal are less than maximum excursions of said input voltage signal.

5. An apparatus for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus as recited in claim 1 wherein said input voltage signal exhibits positive signal excursions and negative signal excursions, and wherein said at least one signal transferring unit comprises a first signal transferring unit coupled for operating with said positive signal excursions and a second signal transferring unit coupled for operating with said negative signal excursions.

6. An apparatus for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus as recited in claim 5 wherein said at least one energy storing unit comprises a first energy storing unit coupled for operating with said first energy transferring unit and a second energy storing unit coupled for operating with said second energy transferring unit.

7. An apparatus for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus as recited in claim 6 wherein said output voltage signal is a generally square-wave representation of said input voltage signal.

8. An apparatus for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus as recited in claim 7 wherein maximum excursions of said output voltage signal are less than maximum excursions of said input voltage signal.

9. An apparatus for presenting an output signal at an output locus in response to an input signal received at an input locus;

said input signal exhibiting a repeating cycle at a first frequency with respect to time of positive signal excursions and negative signal excursions between a first positive extreme value and a first negative extreme value;

the apparatus comprising;

(a) a signal transferring section coupled with said input locus and with said output locus; and

(b) an energy storing section coupled with said signal transferring section;

said signal transferring section including a plurality of switch units coupled for operation at a second frequency substantially equal with said first frequency to effect substantially passing said input signal to said output locus as said output signal during a portion of said cycle;

said output signal having a cycle of excursion between a second positive extreme value less than said first positive extreme value and a second negative extreme value less than said first negative extreme value;

said signal transferring section cooperating with said energy storing section to present energy from said energy storing section at said output locus as said output signal when said input signal is not passed to said output locus said output signal presenting a generally square wave representation of said input signal;

said output signal substantially having a cycle of excursion between said second positive extreme value and said second negative extreme value.

10. An apparatus for presenting an output signal at an output locus in response to an input signal received at an input locus as recited in claim 9 wherein said energy storing section comprises a first energy storing unit coupled for operating with said positive signal excursions and a second energy storing unit coupled for operating with said negative signal excursions.

11. An apparatus for presenting an output signal at an output locus in response to an input signal received at an input locus as recited in claim 9 wherein said output signal is a generally square-wave representation of said input signal.

12. An apparatus for presenting an output signal at an output locus in response to an input signal received at an input locus as recited in claim 11 wherein maximum excursions of said output signal are less than maximum excursions of said input signal.

13. An apparatus for presenting an output signal at an output locus in response to an input signal received at an input locus as recited in claim 9 wherein said signal transferring section comprises a first signal transferring unit coupled for operating with said positive signal excursions and a second signal transferring unit coupled for operating with said negative signal excursions.

14. An apparatus for presenting an output signal at an output locus in response to an input signal received at an input locus as recited in claim 13 wherein said energy storing section comprises a first energy storing unit coupled for operating with said first signal transferring unit and a second energy storing unit coupled for operating with said second signal transferring unit.

15. An apparatus for presenting an output signal at an output locus in response to an input signal received at an input locus as recited in claim 14 wherein said output signal is a generally square-wave representation of said input signal.

16. An apparatus for presenting an output signal at an output locus in response to an input signal received at an input locus as recited in claim 15 wherein maximum excursions of said output signal are less than maximum excursions of said input signal.

17. A method for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus;

said input voltage signal varying at a first frequency and having a first maximum amplitude;

the method comprising;

(a) in no particular order;

(1) providing at least one signal transferring unit coupled with said input locus and with said output locus;

said at least one signal transferring unit including a plurality of switch units; and

(2) providing at least one energy storing unit coupled with said at least one signal energy transferring unit;

(b) operating said plurality of switch units of said at least one signal energy transferring unit at a second frequency substantially equal with said first frequency to effect passing said input voltage signal to said output locus as said output voltage signal in a least one predetermined time interval of said output voltage signal;

said output voltage signal having a second maximum amplitude less than said first maximum amplitude during said at least one predetermined time interval;

(c) operating said at least one signal energy transferring unit in cooperation with said at least one energy storing unit to store energy in said at least one energy storing unit while said input voltage signal is passed to said output locus; and

(d) operating said at least one signal energy transferring unit in cooperation with said at least one energy storing unit to present energy from said at least one energy storing unit at said output locus as said output voltage signal when said input voltage signal is not passed to said output locus;

said output voltage signal presenting a generally square wave representation of said input voltage signal;

said output voltage signal substantially having said second maximum amplitude.

18. A method for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus as recited in claim 17 wherein said input voltage signal exhibits positive signal excursions and negative signal excursions, and wherein said at least one signal transferring unit comprises a first nergy transferring unit coupled for operating with said positive signal excursions and a second signal transferring unit coupled for operating with said negative signal excursions.

19. A method for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus as recited in claim 18 wherein said at least one energy storing unit comprises a first energy storing unit coupled for operating with said first signal transferring unit and a second energy storing unit coupled for operating with said second signal transferring unit.

20. A method for shaping a varying input voltage signal received at an input locus to effect a desired varying output voltage signal at an output locus as recited in claim 17 wherein said input voltage signal exhibits positive signal excursions and negative signal excursions, and wherein said at least one energy storing unit comprises a first energy storing unit coupled for operating with said positive signal excursions and a second energy storing unit coupled for operating with said negative signal excursions.