Device and method for controlling energy

Patent metadata

Field	Value
Publication number	US-11653425-B2
Application number	US-202016810056-A
Country	US
Kind code	B2
Filing date	Mar 5, 2020
Priority date	Nov 10, 2008
Publication date	May 16, 2023
Grant date	May 16, 2023

Abstract

Method of irradiating a load placed in a cavity by radiating UHF or microwave radiation into the cavity. The method includes setting transmission durations, by setting for each of a plurality of frequencies, a respective transmission duration, repeatedly causing energy to be transmitted into the cavity at the plurality of frequencies according to a duty cycle, wherein the duty cycle defines an allotted transmission time for each of the plurality of frequencies, and switching ON or OFF transmission of the energy at certain frequencies, so that over a plurality of repetitions of the duty cycle the energy is transmitted at each of the plurality of frequencies for the respective transmission duration.

First claim

What is claimed is:

1. A method of irradiating a load placed in a cavity by radiating UHF or microwave radiation into the cavity, the method comprising:
setting transmission durations, by setting for each of a plurality of frequencies, a respective transmission duration;
repeatedly causing energy to be transmitted into the cavity at the plurality of frequencies according to a duty cycle, wherein the duty cycle defines an allotted transmission time for each of the plurality of frequencies, and
switching ON or OFF transmission of the energy at certain frequencies, so that over a plurality of repetitions of the duty cycle the energy is transmitted at each of the plurality of frequencies for the respective transmission duration;
wherein setting the transmission durations comprises at least one of:
setting based on dissipation ratios of the plurality frequencies in the load, and
setting based on Q factors associated with dissipation peaks.

2. The method of claim 1 , wherein setting the transmission durations comprises setting based on spectral information retrieved from the cavity.

3. The method of claim 1 , wherein setting the transmission durations comprises setting based on the full S parameters of the cavity.

4. The method of claim 1 , wherein setting the transmission durations comprises setting based on maximal power that may be transmitted into the cavity at each of the plurality of frequencies.

5. The method of claim 1 , wherein the transmission durations are set so that a desired amount of energy is dissipated into the load at any given frequency of the plurality of frequencies.

6. The method of claim 1 , wherein the duty cycle defines a multi-frequency pulse and the method comprises selecting the frequencies in the pulse.

7. The method of claim 1 , wherein the setting the transmission durations comprises setting according to dissipation information.

8. The method of claim 7 , comprising measuring a resulting RC spectrum and inferring the dissipation information from the RC spectrum.

9. The method of claim 1 , comprising:
setting a desired energy to be dissipated at each frequency according to dissipation information; and
setting the transmission durations according to the set desired energy.

10. The method of claim 1 , comprising causing energy to be transmitted at each frequency at a respective maximum power available for the respective frequency.

11. A method of irradiating a load placed in a cavity by radiating UHF or microwave radiation into the cavity, the method comprising:
setting transmission durations, by setting for each of a plurality of frequencies, a respective transmission duration;
repeatedly causing energy to be transmitted into the cavity at the plurality of frequencies according to a duty cycle, wherein the duty cycle defines an allotted transmission time for each of the plurality of frequencies, and
switching ON or OFF transmission of the energy at certain frequencies, so that over a plurality of repetitions of the duty cycle the energy is transmitted at each of the plurality of frequencies for the respective transmission duration;
wherein setting the transmission durations comprises setting based on Q factors associated with dissipation peaks.

12. A method of irradiating a load placed in a cavity by UHF or microwave radiation, the method comprising:
setting transmission durations, by setting for each of a plurality of frequencies, a respective transmission duration;
repeatedly causing energy to be transmitted into the cavity at the plurality of frequencies according to a duty cycle, wherein the duty cycle defines the same allotted transmission time for each of the plurality of frequencies; and
dynamically selecting the frequencies that appear in each duty cycle;
wherein setting the transmission durations comprises at least one of:
setting based on dissipation ratios of the plurality frequencies in the load, and
setting based on Q factors associated with dissipation peaks.

Assignees

• Goji Ltd
• Joliet 2010 Ltd

Inventors

• Bilchinsky Alexander
• Ben-Shmuel Eran

Classifications

• H05B6/6447

  Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors · CPC title

• H05B6/664

  Aspects related to the power supply of the microwave heating apparatus · CPC title

• H05B6/687

  for cooking · CPC title

• H05B6/70

  Feed lines · CPC title

• H05B6/705

  using microwave tuning · CPC title