WO1999049561A1 - A high-voltage pulse generator - Google Patents
A high-voltage pulse generator Download PDFInfo
- Publication number
- WO1999049561A1 WO1999049561A1 PCT/US1999/006407 US9906407W WO9949561A1 WO 1999049561 A1 WO1999049561 A1 WO 1999049561A1 US 9906407 W US9906407 W US 9906407W WO 9949561 A1 WO9949561 A1 WO 9949561A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switches
- energy storage
- storage component
- power source
- load
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
- H03K3/57—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a semiconductor device
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/32—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with electric currents without heating effect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
Definitions
- PEF treatment systems typically employ high-voltage pulses to induce stress and mortality in biological cells.
- One such PEF treatment system is disclosed in U.S. Patent 5,690,978 to Yin et al. which is hereby fully incorporated by reference.
- the present invention provides a bipolar high-voltage pulse characteristic that reduces and/or eliminates the migration of charge carrying particles in the food product, such as proteins, from migrating in the direction of the electric field and depositing on one electrode—as occurs in typical unipolar PEF treatment systems. This migration of charge carrying particles has been known to cause local field distortions between the treatment electrodes and leads to arcing and non-uniform PEF treatment. Additionally, the present invention provides a switching circuit which is capable of maintaining high currents and/or voltages through small resistive loads, such as PEF treatment chambers.
- C21 is selected so that a discharge time constant of the circuit shown in Figure. 2 is comparably larger than the time interval between the closing and the opening of the switches U21 and U22.
- a discharge time constant of the circuit shown in Figure. 2 is comparably larger than the time interval between the closing and the opening of the switches U21 and U22.
- Switches U51 and U52 are of the type already described in connection with the earlier embodiments.
- Wave shape preferably substantial square wave.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Nutrition Science (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002325691A CA2325691C (en) | 1998-03-24 | 1999-03-24 | A high-voltage pulse generator |
AU31136/99A AU3113699A (en) | 1998-03-24 | 1999-03-24 | A high-voltage pulse generator |
EP99912868A EP1072085A4 (en) | 1998-03-24 | 1999-03-24 | A high-voltage pulse generator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7921498P | 1998-03-24 | 1998-03-24 | |
US60/079,214 | 1998-03-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999049561A1 true WO1999049561A1 (en) | 1999-09-30 |
Family
ID=22149146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/006407 WO1999049561A1 (en) | 1998-03-24 | 1999-03-24 | A high-voltage pulse generator |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1072085A4 (en) |
AU (1) | AU3113699A (en) |
CA (1) | CA2325691C (en) |
WO (1) | WO1999049561A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100345377C (en) * | 2005-12-05 | 2007-10-24 | 浙江大学 | Intelligent high pressure pulse generator |
CN102055362A (en) * | 2009-11-04 | 2011-05-11 | 清华大学深圳研究生院 | High-voltage pulse power supply for processing food with pulse electric field |
WO2011139144A1 (en) | 2010-05-05 | 2011-11-10 | Ixl Nederland B/V. | Method and system for treating a substantially solid food product |
CN102437773A (en) * | 2011-12-07 | 2012-05-02 | 中国科学院合肥物质科学研究院 | Pulse generator |
CN102647106A (en) * | 2012-05-23 | 2012-08-22 | 赵涛 | Pulse generator |
CN103138719A (en) * | 2013-03-07 | 2013-06-05 | 复旦大学 | Controllable constant voltage pulse generation circuit |
WO2014025110A1 (en) * | 2012-08-09 | 2014-02-13 | 서울대학교 산학협력단 | Apparatus for controlling power devices and method for controlling power devices using same |
US9608613B2 (en) | 2015-06-30 | 2017-03-28 | Synaptics Incorporated | Efficient high voltage square wave generator |
CN106712745A (en) * | 2017-03-28 | 2017-05-24 | 中国工程物理研究院流体物理研究所 | Composite high voltage pulse electric field, and electric field sterilization device and method |
CN115246880A (en) * | 2021-04-28 | 2022-10-28 | 南京林业大学 | Novel method for greatly improving phycocyanin content |
DE102022210313A1 (en) | 2022-09-29 | 2024-04-04 | BSH Hausgeräte GmbH | Power electronics for a PEF device and PEF device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5638263A (en) * | 1994-03-01 | 1997-06-10 | Halmar Robicon Group | Low and medium voltage PWM AC/DC power conversion method and apparatus |
US5690978A (en) * | 1996-09-30 | 1997-11-25 | Ohio State University | High voltage pulsed electric field treatment chambers for the preservation of liquid food products |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5662031A (en) * | 1994-12-23 | 1997-09-02 | Washington State University Research Foundation, Inc. | Continuous flow electrical treatment of flowable food products |
-
1999
- 1999-03-24 CA CA002325691A patent/CA2325691C/en not_active Expired - Lifetime
- 1999-03-24 AU AU31136/99A patent/AU3113699A/en not_active Abandoned
- 1999-03-24 WO PCT/US1999/006407 patent/WO1999049561A1/en not_active Application Discontinuation
- 1999-03-24 EP EP99912868A patent/EP1072085A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5638263A (en) * | 1994-03-01 | 1997-06-10 | Halmar Robicon Group | Low and medium voltage PWM AC/DC power conversion method and apparatus |
US5690978A (en) * | 1996-09-30 | 1997-11-25 | Ohio State University | High voltage pulsed electric field treatment chambers for the preservation of liquid food products |
Non-Patent Citations (1)
Title |
---|
See also references of EP1072085A4 * |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100345377C (en) * | 2005-12-05 | 2007-10-24 | 浙江大学 | Intelligent high pressure pulse generator |
CN102055362A (en) * | 2009-11-04 | 2011-05-11 | 清华大学深圳研究生院 | High-voltage pulse power supply for processing food with pulse electric field |
WO2011139144A1 (en) | 2010-05-05 | 2011-11-10 | Ixl Nederland B/V. | Method and system for treating a substantially solid food product |
CN102437773A (en) * | 2011-12-07 | 2012-05-02 | 中国科学院合肥物质科学研究院 | Pulse generator |
CN102647106A (en) * | 2012-05-23 | 2012-08-22 | 赵涛 | Pulse generator |
WO2014025110A1 (en) * | 2012-08-09 | 2014-02-13 | 서울대학교 산학협력단 | Apparatus for controlling power devices and method for controlling power devices using same |
CN103138719A (en) * | 2013-03-07 | 2013-06-05 | 复旦大学 | Controllable constant voltage pulse generation circuit |
CN103138719B (en) * | 2013-03-07 | 2016-01-20 | 复旦大学 | Controllable constant voltage pulse generation circuit |
US9608613B2 (en) | 2015-06-30 | 2017-03-28 | Synaptics Incorporated | Efficient high voltage square wave generator |
CN106712745A (en) * | 2017-03-28 | 2017-05-24 | 中国工程物理研究院流体物理研究所 | Composite high voltage pulse electric field, and electric field sterilization device and method |
CN106712745B (en) * | 2017-03-28 | 2023-08-04 | 中国工程物理研究院流体物理研究所 | Composite high-voltage pulse electric field, electric field sterilization device and method |
CN115246880A (en) * | 2021-04-28 | 2022-10-28 | 南京林业大学 | Novel method for greatly improving phycocyanin content |
DE102022210313A1 (en) | 2022-09-29 | 2024-04-04 | BSH Hausgeräte GmbH | Power electronics for a PEF device and PEF device |
Also Published As
Publication number | Publication date |
---|---|
AU3113699A (en) | 1999-10-18 |
CA2325691A1 (en) | 1999-09-30 |
EP1072085A1 (en) | 2001-01-31 |
CA2325691C (en) | 2008-06-17 |
EP1072085A4 (en) | 2004-10-13 |
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