US5491452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peltier element as series noise clamp
Assignee: NETSU DENSHI KOGYO CO Ltd
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Filing: 1994-10-26
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Granted: 1996-02-13
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Expires: 2014-10-26
Abstract
Abstract Disclosed are a noise eliminating element having a junction of components of two kinds of electroconductive materials, characterized in that the absolute values of the thermoelectric power of the two kinds of materials is 50 μVK -1 or higher and there is substantially no rectifying action at the junction. Both the Seebeck effect and the Paltier effect occur simultaneous and create a transient phenomena in one element. Because of the transient phenomena in one element and because of the transient phenomenon based on both effects, noises, particularly the standing wave noises generated at around output current near to zero are eliminated. The noise eliminating elements can be inserted in a magnetic circuit of a speaker circuit for acoustic equipment or in a deflecting coil circuit of an electron image display device.
Inventors
- 👤 Kazuo Ohtsubo
- 👤 Kinichi Uemura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:46
CPC Classifications
H; H04; H04R; H04R23/00; H04R23/002; H02; H02H; H02H9/00; H02H9/04; H02H9/044; H04R3/00; H04R3/04; H10; H10N; H10N10/00; H10N10/10; Y; Y10; Y10S; Y10S257/00; Y10S257/93
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
A method of using a Peltier element to reduce electrical circuit noise in an electrical circuit which includes an electromagnetic device, comprising the steps of: providing an electrical circuit to produce an alternating electric current through an electromagnetic device; coupling a Peltier element into said electrical circuit, said Peltier element comprising: (a) two components of different kinds of electroconductive materials, (b) a junction between said components, (c) two electrodes formed, respectively, by a part of said two components for coupling said element into said electrical circuit, said materials having a thermoelectric power which exceeds 50 μVK -1 as an absolute value at an activating temperature of said element, and wherein there is substantially no rectifying action at said junction.
Claim 2
Independent Claim
119 words
A method of using a Peltier element to reduce electrical circuit noise in an electrical circuit which includes an electromagnetic device, comprising the steps of: providing an electrical circuit to produce an alternating electric current through an electromagnetic device; coupling a Peltier element into said electrical circuit, said Peltier element comprising: (a) two components of different kinds of electroconductive materials, (b) a junction between said components, (c) two electrodes formed, respectively, by a part of said two components for coupling said element into said electrical circuit, said materials having a thermoelectric power which exceeds 50 μVK -1 as an absolute value at an activating temperature of said element, and wherein there is substantially no rectifying action at said junction.
Claim 3
Dependent Claim
26 words
The method of claim 1, wherein the thermoelectric power of said materials exceeds plus or minus 100 μVK -1 at the activity temperature of said element.
Claim 4
Dependent Claim
26 words
The method of claim 1, wherein the thermoelectric power of said materials exceeds plus or minus 200 μVK -1 at the activity temperature of said element.
Claim 5
Dependent Claim
26 words
The method of claim 1, wherein the thermoelectric power of said materials exceeds plus or minus 300 μVK -1 at the activity temperature of said element.
Claim 6
Dependent Claim
42 words
The method of claim 1, wherein said electrical circuit includes an electrical resistance, and further comprising the steps of coupling said Peltier element in parallel with said electrical resistance, and providing said Peltier element with a resistance larger than said electrical resistance.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-02-12 | 1999-08-14 | 2000-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-12 | 2003-08-14 | 2004-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-12 | 2007-08-14 | 2008-02-13 | $7700.00 | Window Closed / Lapsed |