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公开(公告)号：US12167524B2
公开(公告)日：2024-12-10
申请号：US18461613
申请日：2023-09-06
Applicant: WHIRLPOOL CORPORATION , Panasonic Holdings Corporation
Inventor： Alessandro Gigante , Giuseppe Tarantino , Matteo Rinaldi , David O. Wahlander
Abstract: A microwave oven and a method of operating the same is provided herein. The method includes the steps of: sensing that a door of the microwave is in an open state; interrupting a power input to a generator power supply unit comprising a first converter, a first energy reserve, a second energy reserve located downstream from the first energy reserve, and a second converter located between the first and second energy reserves; detecting an input voltage; and disabling the second converter if the detected input voltage is less than a threshold voltage that is proportional to the detected input voltage, wherein disabling the second converter triggers the second energy reserve to discharge, and wherein the time necessary to discharge the second energy reserve is free of influence from the first energy reserve and is independent of the detected input voltage.
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Patent Agency Ranking
公开(公告)号：US11792897B2
公开(公告)日：2023-10-17
申请号：US16307232
申请日：2016-08-22
Applicant: WHIRLPOOL CORPORATION , Panasonic Corporation
Inventor： Alessandro Gigante , Giuseppe Tarantino , Matteo Rinaldi , David O. Wahlander
CPC classification number: H05B6/76 , H02M1/322 , H02M1/007 , H05B6/68 , H05B2206/046
Abstract: A microwave oven and a method of operating the same is provided herein. The method includes the steps of: sensing that a door of the microwave is in an open state; interrupting a power input to a generator power supply unit comprising a first converter, a first energy reserve, a second energy reserve located downstream from the first energy reserve, and a second converter located between the first and second energy reserves; detecting an input voltage; and disabling the second converter if the detected input voltage is less than a threshold voltage that is proportional to the detected input voltage, wherein disabling the second converter triggers the second energy reserve to discharge, and wherein the time necessary to discharge the second energy reserve is free of influence from the first energy reserve and is independent of the detected input voltage.
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公开(公告)号：US20230422363A1
公开(公告)日：2023-12-28
申请号：US18461613
申请日：2023-09-06
Applicant: WHIRLPOOL CORPORATION , Panasonic Holdings Corporation
Inventor： Alessandro Gigante , Giuseppe Tarantino , Matteo Rinaldi , David O. Wahlander
CPC classification number: H05B6/76 , H02M1/322 , H02M1/007 , H05B6/68 , H05B2206/046
Abstract: A microwave oven and a method of operating the same is provided herein. The method includes the steps of: sensing that a door of the microwave is in an open state; interrupting a power input to a generator power supply unit comprising a first converter, a first energy reserve, a second energy reserve located downstream from the first energy reserve, and a second converter located between the first and second energy reserves; detecting an input voltage; and disabling the second converter if the detected input voltage is less than a threshold voltage that is proportional to the detected input voltage, wherein disabling the second converter triggers the second energy reserve to discharge, and wherein the time necessary to discharge the second energy reserve is free of influence from the first energy reserve and is independent of the detected input voltage.
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公开(公告)号：US20190313490A1
公开(公告)日：2019-10-10
申请号：US16308015
申请日：2016-12-27
Applicant: WHIRLPOOL CORPORATION
Inventor： Andrea Gallivanoni , Cristiano Vito Pastore , Matteo Rinaldi , Natalia Roumpedaki
Abstract: A solid state radio frequency generation system is provided for an electromagnetic cooking device having an enclosed cavity. The radio frequency generation system includes: an RF feed for introducing electromagnetic radiation into the cavity to heat a food load; a high-power RF amplifier coupled to the RF feed, the amplifier comprising at least one amplifying stage configured to output a signal that is amplified in power with respect to an input RF signal; a small signal generator for supplying the input RF signal to the amplifier; and a switching power supply unit including a single DC-DC converter that converts AC mains power to low voltage DC for supply to the amplifier, and a controller configured to adapt an input current from the AC mains power to form a predefined periodic waveform with the same frequency as the AC mains power for supply to the small signal generator.
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公开(公告)号：US11057969B2
公开(公告)日：2021-07-06
申请号：US16308015
申请日：2016-12-27
Applicant: WHIRLPOOL CORPORATION
Inventor： Andrea Gallivanoni , Cristiano Vito Pastore , Matteo Rinaldi , Natalia Roumpedaki
Abstract: A solid state radio frequency generation system is provided for an electromagnetic cooking device having an enclosed cavity. The radio frequency generation system includes: an RF feed for introducing electromagnetic radiation into the cavity to heat a food load; a high-power RF amplifier coupled to the RF feed, the amplifier comprising at least one amplifying stage configured to output a signal that is amplified in power with respect to an input RF signal; a small signal generator for supplying the input RF signal to the amplifier; and a switching power supply unit including a single DC-DC converter that converts AC mains power to low voltage DC for supply to the amplifier, and a controller configured to adapt an input current from the AC mains power to form a predefined periodic waveform with the same frequency as the AC mains power for supply to the small signal generator.
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公开(公告)号：US20190223262A1
公开(公告)日：2019-07-18
申请号：US16307232
申请日：2016-08-22
Applicant: WHIRLPOOL CORPORATION , Panasonic Corporation
Inventor： Alessandro Gigante , Giuseppe Tarantino , Matteo Rinaldi , David O. Wahlander
IPC: H05B6/76
CPC classification number: H05B6/76 , H05B6/68 , H05B2206/046
Abstract: A microwave oven and a method of operating the same is provided herein. The method includes the steps of: sensing that a door of the microwave is in an open state; interrupting a power input to a generator power supply unit comprising a first converter, a first energy reserve, a second energy reserve located downstream from the first energy reserve, and a second converter located between the first and second energy reserves; detecting an input voltage; and disabling the second converter if the detected input voltage is less than a threshold voltage that is proportional to the detected input voltage, wherein disabling the second converter triggers the second energy reserve to discharge, and wherein the time necessary to discharge the second energy reserve is free of influence from the first energy reserve and is independent of the detected input voltage.
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