Noise eliminating element and electrical circuit having the same

• US 5,869,892 A
• Filed: 11/12/1996
• Issued: 02/09/1999
• Est. Priority Date: 09/18/1990
• Status: Expired due to Fees

• Current Assignee: Netsu Denshi Kogyo Co., Ltd.
• Original Assignee: Kinichi Uemura, Melcor Japan Co., Ltd.
• Inventors: Ohtsubo, Kazuo, Uemura, Kinichi
• Primary Examiner(s): MONIN, DONALD L JR
• Application Number:
  US08/748,096
• Time in Patent Office: 819 Days
• Field of Search: 327/552, 327/551, 257/930, 257/713, 259/934
• US Class Current: 257/713
• CPC Class Codes: H02H 9/044 Physical layout, materials not provided for elsewhere varistors H01C7/12; spark-gaps H01T; Ovshinsky devices H10N70/00
• CPC Class Codes: H04R 23/002 using electrothermic-effect transducer
• CPC Class Codes: H04R 3/04 for correcting frequency response
• CPC Class Codes: H10N 10/00 Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects integrated devices or assemblies of multiple devices H10N19/00
• CPC Class Codes: H10N 10/10 operating with only the Peltier or Seebeck effects
• CPC Class Codes: Y10S 257/93 Thermoelectric, e.g. peltier effect cooling

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 diflecting coil circuit of an electron image display device.

Claims

1. A noise eliminating element in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, comprising:

components of different kinds of electroconductive materials;

at least one junction between said components of different kinds of electroconductive materials;

electrodes comprising a part of at least two of said components;

said electroconductive materials having a thermoelectric power which exceeds plus or minus 50 μ

VK^-1 at an activating temperature of the noise eliminating element; and

wherein the direction of current through the noise eliminating element changes for noise elimination; and

the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element has substantially neither a heat absorption surface nor a heat radiation surface in the element in addition to said components of different kinds of electroconductive materials and said electrodes.

2. A noise eliminating element according to claim 1, wherein the thermoelectric power of said electroconductive materials exceeds plus or minus 100 μ

VK^-1 at the activating temperature of the noise eliminating element.

3. A noise eliminating element according to claim 1, wherein the thermoelectric power of said electroconductive materials exceeds plus or minus 200 μ

VK^-1 at the activating temperature of the noise eliminating element.

4. A noise eliminating element in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, comprising:

components of different kinds of electroconductive materials;

at least one junction between said components of different kinds of electroconductive materials;

electrodes comprising a part of at least two of said components;

said electroconductive materials having a thermoelectric power at an activating temperature of the noise eliminating element; and

wherein the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element requires neither a heat absorption surface nor a heat radiation surface in the element in addition to said components of different kinds of electroconductive materials and said electrodes; and

wherein the thermoelectric power of said electroconductive materials exceeds plus or minus 300 μ

VK^-1 at the activating temperature of the noise eliminating element.

5. A noise eliminating element in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, comprising:

two components of two kinds of electroconductive materials;

a junction between said two components of said two kinds of electroconductive materials;

two electrodes provided at a surface of the respective components;

each of said two kinds of electroconductive materials having an individual thermoelectric power which exceeds plus or minus 50 μ

VK^-1 at an activating temperature of the noise eliminating element; and

wherein the direction of current through the noise eliminating element chances for noise elimination; and

the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element has substantially neither a heat absorption surface nor a heat radiation surface in the element in addition to said two components of two kinds of electroconductive materials and said electrodes.

6. A noise eliminating element according to claim 5, wherein the individual thermoelectric power of each of the respective electroconductive materials exceeds plus or minus 100 μ

VK^-1 at the activating temperature of the noise eliminating element.

7. A noise eliminating element according to claim 5, wherein the individual thermoelectric power of each of the respective electroconductive materials exceeds plus or minus 200 μ

VK^-1 at the activating temperature of the noise eliminating element.

8. A noise eliminating element in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, comprising:

two components of two kinds of electroconductive materials;

a junction between said two components of said two kinds of electroconductive materials;

two electrodes provided at a surface of the respective components;

each of said two kinds of electroconductive materials having an individual thermoelectric power at an activating temperature of the noise eliminating element;

wherein the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element requires neither a heat absorption surface nor a heat radiation surface in the element in addition to said two components of two kinds of electroconductive materials and said electrodes; and

wherein the individual thermoelectric power of each of the respective electroconductive materials exceeds plus or minus 300 μ

VK^-1 at the activating temperature of the noise eliminating element.

9. A noise eliminating element in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, comprising:

a first component of an n-type semiconductor material, and a second component of a p-type semiconductor material, said first and second components being Functioned in one of the following ways;

(a) directly and

(b) through a solder layer;

electrodes provided at a surface of the respective first and second components;

said first and second components each being made of a material having an individual thermoelectric power which exceeds plus or minus 50 μ

VK^-1 at an activating temperature of the noise eliminating element; and

wherein the direction of current through the noise eliminating element changes for noise elimination; and

the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element has substantially the element in addition to said first and second components of semiconductor materials and said electrodes.

10. A noise eliminating element according to claim 9, wherein the individual thermoelectric power of the material of both of the first and second components exceeds plus or minus 100 μ

VK^-1 or higher at an activating temperature of the noise eliminating element.

11. A noise eliminating element according to claim 9, wherein the individual thermoelectric power of the material of both of the first and second components exceeds plus or minus 200 μ

VK^-1 or higher at an activating temperature of the noise eliminating element.

12. A noise eliminating element in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, comprising:

a first component of an n-type semiconductor material, and a second component of a p-type semiconductor material, said first and second components being junctioned in one of the following ways;

(a) directly and

(b) through a solder layer;

electrodes provided at a surface of the respective first and second components;

said first and second components each being made of a material having an individual thermoelectric power at an activating temperature of the noise eliminating element;

wherein the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element requires neither a heat absorption surface nor a heat radiation surface in the element in addition to said first and second components of semiconductor materials and said electrodes; and

wherein the individual thermoelectric power of the material of both of the first and second components exceeds plus or minus 300 μ

VK^-1 or higher at an activating temperature of the noise eliminating element.

13. An electrical circuit comprising:

an electrical impedance element including an inductance and a resistance; and

at least one noise eliminating element connected in series with said electrical impedance element of the electrical circuit, and in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, wherein each of said at least one noise eliminating element comprises;

components of different kinds of electroconductive materials;

at least one junction between said components of different kinds of electroconductive materials;

electrodes comprising a part of at least two of said components;

said electroconductive materials having a thermoelectric power which exceeds plus or minus 50 μ

VK^-1 at an activating temperature of the noise eliminating element; and

wherein the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element requires neither a heat absorption surface nor a heat radiation surface in the element in addition to said components of different kinds of electroconductive materials and said electrodes.

14. An electrical circuit comprising:

an electrical impedance element including an inductance and a resistance; and

at least one noise eliminating element connected in series with said electrical impedance element of the electrical circuit, and in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, wherein each of said at least one noise eliminating element comprises;

two components of two kinds of electroconductive materials;

a junction between said two components of said two kinds of electroconductive materials;

two electrodes provided at a surface of the respective components;

each of said two kinds of electroconductive materials having an individual thermoelectric power which exceeds plus or minus 50 μ

VK^-1 at an activating temperature of the noise eliminating element; and

wherein the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element requires neither a heat absorption surface nor a heat radiation surface in the element in addition to said two components of two kinds of electroconductive materials and said electrode.

15. An electrical circuit comprising:

an electrical impedance element including an inductance and a resistance; and

at least one noise eliminating element connected in series with said electrical impedance element of the electrical circuit, and in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, wherein each of said at least one noise eliminating element comprises;

a first component of an n-type semiconductor material, and a second component of a p-type semiconductor material, said first and second components being junctioned in one of the following ways;

(a) directly and

(b) through a solder layer;

electrodes provided at a surface of the respective first and second components;

said first and second components each being made of a material having an individual thermoelectric power which exceeds plus or minus 50 μ

VK^-1 at an activating temperature of the noise eliminating element; and

wherein the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element requires neither a heat absorption surface nor a heat radiation surface in the element in addition to said first and second components of semiconductor materials and said electrodes.

16. An electromagnetic circuit comprising:

an inductance element; and

at least one noise eliminating element connected in series with said inductive element, and in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, wherein each of said at least one noise eliminating element comprises;

components of different kinds of electroconductive materials;

at least one junction between said components of different kinds of electroconductive materials;

electrodes comprising a part of at least two of said components;

said electroconductive materials having a thermoelectric power which exceeds plus or minus 50 μ

VK^-1 at an activating temperature of the noise eliminating element; and

wherein the hot and cold sides of the element are interchanged intermittently de pending on the direction of current therethrough, such that said noise eliminating element requires neither a heat absorption surface nor a heat radiation surface in the element in addition to said components of different kinds of electroconductive materials and said electrodes.

17. An electromagnetic circuit according to claim 16, wherein:

said electromagnetic circuit comprises a speaker circuit for an acoustic instrument; and

said inductance element is a voice coil in said speaker circuit.

22. An electromagnetic circuit according to claim 16, wherein:

said electromagnetic circuit comprises a deflecting coil circuit of an electron image display device; and

said inductance element is a deflecting coil in said deflecting coil circuit.

25. An electromagnetic circuit according to claim 16, wherein:

said electromagnetic circuit comprises a picture output circuit of a television; and

said inductance element is a cathode of a picture tube in said picture output circuit.

28. An electromagnetic circuit according to claim 16, wherein:

said electromagnetic circuit comprises a transmitter antenna circuit; and

said inductance element is an antenna in said transmitter antenna circuit.

31. An electromagnetic circuit according to claim 16, wherein:

said electromagnetic circuit comprises an inverter circuit; and

said inductance element is a transformer in said inverter circuit.

34. An electromagnetic circuit according to claim 16, further comprising:

an electrical resistance; and

wherein said noise eliminating element is connected in parallel with said electrical resistance and has a resistance which is larger than a resistance of said electrical resistance.

18. An electromagnetic circuit comprising:

an inductance element; and

at least one noise eliminating element connected in series with said inductive element, and in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, wherein each of said at least one noise eliminating element comprises;

two components of two kinds of electroconductive materials;

a junction between said two components of said two kinds of electroconductive materials;

two electrodes provided at a surface of the respective components;

each of said two kinds of electroconductive materials having an individual thermoelectric power which exceeds plus or minus 50 μ

VK^-1 at an activating temperature of the noise eliminating element; and

wherein the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element requires neither a heat absorption surface nor a heat radiation surface in the element in addition to said two components of two kinds of electroconductive materials and said electrodes.

19. An electromagnetic circuit according to claim 18, wherein:

said electromagnetic circuit comprises a speaker circuit for an acoustic instrument; and

said inductance element is a voice coil in said speaker circuit.

23. An electromagnetic circuit according to claim 18, wherein:

said electromagnetic circuit comprises a deflecting coil circuit of an electron image display device; and

said inductance element is a deflecting coil in said deflecting coil circuit.

26. An electromagnetic circuit according to claim 18, wherein:

said electromagnetic circuit comprises a picture output circuit of a television; and

said inductance element is a cathode of a picture tube in said picture output circuit.

29. An electromagnetic circuit according to claim 18, wherein:

said electromagnetic circuit comprises a transmitter antenna circuit; and

said inductance element is an antenna in said transmitter antenna circuit.

32. An electromagnetic circuit according to claim 18, wherein:

said electromagnetic circuit comprises an inverter circuit; and

said inductance element is a transformer in said inverter circuit.

35. An electromagnetic circuit according to claim 18, further comprising:

an electrical resistance; and

wherein said noise eliminating element is connected in parallel with said electrical resistance and has a resistance which is larger than a resistance of said electrical resistance.

20. An electromagnetic circuit comprising:

an inductance element; and

at least one noise eliminating element connected in series with said inductive element, and in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, wherein each of said at least one noise eliminating element comprises;

a first component of an n-type semiconductor material, and a second component of a p-type semiconductor material, said first and second components being junctioned in one of the following ways;

(a) directly and

(b) through a solder layer;

electrodes provided at a surface of the respective first and second components;

said first and second components each being made of a material having an individual thermoelectric power which exceeds plus or minus 50 μ

VK^-1 at an activating temperature of the noise eliminating element; and

wherein the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element requires neither a heat absorption surface nor a heat radiation surface in the element in addition to said first and second components of semiconductor materials and said electrodes.

21. An electromagnetic circuit according to claim 20, wherein:

said electromagnetic circuit comprises a speaker circuit for an acoustic instrument; and

said inductance element is a voice coil in said speaker circuit.

24. An electromagnetic circuit according to claim 20, wherein:

said electromagnetic circuit comprises a deflecting coil circuit of an electron image display device; and

said inductance element is a deflecting coil in said deflecting coil circuit.

27. An electromagnetic circuit according to claim 20, wherein:

said electromagnetic circuit comprises a picture output circuit of a television; and

said inductance element is a cathode of a picture tube in said picture output circuit.

30. An electromagnetic circuit according to claim 20, wherein:

said electromagnetic circuit comprises a transmitter antenna circuit; and

said inductance element is an antenna in said transmitter antenna circuit.

33. An electromagnetic circuit according to claim 20, wherein:

said electromagnetic circuit comprises an inverter circuit; and

said inductance element is a transformer in said inverter circuit.

36. An electromagnetic circuit according to claim 20, further comprising:

an electrical resistance; and

wherein said noise eliminating element is connected in parallel with said electrical resistance and has a resistance which is larger than a resistance of said electrical resistance.

37. A noise eliminating element in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, comprising:

components of different kinds of electroconductive materials;

at least one junction between said components of different kinds of electroconductive materials;

electrodes comprising a part of at least two of said components; and

wherein the direction of current through the noise eliminating element changes for noise elimination; and

the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that a maximum threshold value of rectifying action is 100 mV, and substantially no rectifying action is produced at said junction.

38. A noise eliminating element according to claim 37, wherein the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise elimination element requires neither a heat absorption surface nor a heat radiation surface in the element in addition to said components of different kinds of electroconductive materials and said electrodes.

39. A noise eliminating element according to claim 38, wherein solder at the junction is a metallic material with absolute thermoelectric power of nearly 0.

40. A noise eliminating element in which heat absorption or heat generation takes place according to a Peltier effect with the element having a cold side and a hot side, comprising:

components of different kinds of electroconductive materials;

at least one junction between said components of different kinds of electroconductive materials;

electrodes comprising a part of at least two of said components;

said electroconductive materials having opposite values of thermoelectric power, respectively; and

wherein the direction of current through the noise eliminating element changes for noise elimination; and

the hot and cold sides of the element are interchanged intermittently depending on the direction of current therethrough, such that said noise eliminating element has substantially neither a heat absorption surface nor a heat radiation surface in the element in addition to said components of different kinds of electroconductive materials and said electrodes.

41. A noise eliminating element according to claim 40, wherein said junction has no polarity, and a maximum threshold value of rectifying action is 100 mV.

42. A noise eliminating element according to claim 40, wherein said different kinds of electroconductive materials have similar electrical resistance and thermal conductance.