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公开(公告)号：US20190327791A1
公开(公告)日：2019-10-24
申请号：US15959943
申请日：2018-04-23
Applicant: WHIRLPOOL CORPORATION
Inventor： Salvatore Baldo , Andrea Gallivanoni , Davide Parachini , Cristiano Vito Pastore
Abstract: A control circuit for an induction heating device comprises a D.C. power supply, referenced to a ground connection and configured to supply power to the induction heating device. A switching device is configured to be selectively activated to control the induction heating device. The switching device is connected on one end to the ground connection. A resonant load is disposed between the D.C. power supply and the switching device, the resonant load comprises a capacitor and an inductor connected in a parallel configuration. At least one rectifying device is disposed in series with the resonant load and the switching device. The switching device is configured to control current from the D.C. power supply through the resonant load.
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公开(公告)号：US20250151178A1
公开(公告)日：2025-05-08
申请号：US18503491
申请日：2023-11-07
Applicant: WHIRLPOOL CORPORATION
Inventor： Andrea Gallivanoni , Mario Barbati , Salvatore Baldo
Abstract: Systems and methods for controlling a current source converter (CSC) comprising one or more inverters with a series or parallel resonant load topology are provided. Pulse width modulation (PWM) signals are generated for driving switching devices of one or more inverters of the current source converter. Power delivered to an item of cookware is controlled by varying one or more of frequency, duty cycle, and overlap of the PWM signals.
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公开(公告)号：US11871499B2
公开(公告)日：2024-01-09
申请号：US17090060
申请日：2020-11-05
Applicant: Whirlpool Corporation
Inventor： Salvatore Baldo , Andrea Gallivanoni , Ajit Manohar , Cristiano Vito Pastore
CPC classification number: H05B6/1245 , H05B6/36 , H05B2206/02
Abstract: An induction cooking apparatus including a coil beam assembly, an inverter assembly, and a heatsink. The coil beam assembly includes one or more induction coils. The inverter assembly includes a first circuit board that is electrically connected to the induction coil(s) such that the inverter assembly is configured to supply electricity to the induction coil(s). The heatsink has a beam-like structure and is attached to both the coil beam assembly and the inverter assembly. The heatsink is positioned above the inverter assembly and below the coil beam assembly such that the heatsink is the sole support structure for the inverter assembly. A method for assembling the induction cooking apparatus is also described.
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公开(公告)号：US20230283195A1
公开(公告)日：2023-09-07
申请号：US18116137
申请日：2023-03-01
Applicant: WHIRLPOOL CORPORATION
Inventor： Salvatore Baldo , Andrea Gallivanoni , Cristiano Vito Pastore , Andrea Zoppi
CPC classification number: H02M7/217 , H05B6/1209 , H02M1/44
Abstract: A ticking noise that can be heard when the QR converter is operated to deliver a power level smaller than the minimum power level for having a soft-switching can be due to the fact that during the OFF interval there is no power delivery and the DC-bus capacitance is charged at the peak of rectified main line voltage. This drawback may be overcome by discharging purposely the DC-bus capacitor during an OFF interval of the QR converter until the DC-bus capacitor is substantially discharged when a new ON interval of the QR converter is started.
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公开(公告)号：US20230209665A1
公开(公告)日：2023-06-29
申请号：US17560355
申请日：2021-12-23
Applicant: WHIRLPOOL CORPORATION
Inventor： Salvatore Baldo , Mario Barbati , Andrea Gallivanoni , Silvio Sperone
IPC: H05B6/06
CPC classification number: H05B6/065 , H05B2213/05 , H05B6/1272
Abstract: A cooking article detection system for an induction cooktop having a first power-delivery induction coil includes a first detector coil overlying the first power-delivery induction coil and including a first conductive element revolving continuously around a centroid in a first tangential direction to define a shape of the first coil that extends in a first linear direction and a second linear direction along a plane and a second detector coil overlying the first power-delivery coil and including a second conductive element connected with the first detector coils and revolving continuously around a centroid in a second tangential direction, opposite the first tangential direction. The second detector coil is linearly arranged with the first detector coil and is spaced apart therefrom in the second linear direction. A controller drives the first and second detection coils, simultaneously, with a low-voltage, high frequency detection signal, and measures a voltage across the first and second detection coils to identify a cooking article on the induction cooktop.
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Patent Agency Ranking
公开(公告)号：US11517146B2
公开(公告)日：2022-12-06
申请号：US16418607
申请日：2019-05-21
Applicant: WHIRLPOOL CORPORATION
Inventor： Collin A. Stipe , Cristiano Vito Pastore , Christopher D. Cullen , Andrea Gallivanoni , Gregory Bauman , Aaron Edward Showers , Rahul S. Dudhe , Natalie Hillmann , Tushar Ashok Kalbande , Ajit Janardan Manohar , Rahul R. Pandey , Neomar Giacomini , Kevin Chase , Josh Abdoo , Larissa Ducci De Araujo , Sugosh Venkataraman , Andrea Ferrise
Abstract: A cooking assistance appliance can include a body, at least one camera, at least one sensor, and an imaging device for capturing an image of a cooking appliance. The cooking appliance can provide for monitoring use of the cooking appliance, as well as assisting the user in operating the cooking appliance. Additionally, the cooking assistance appliance can be integrated into a hood or a microwave oven and vent combination above a stovetop.
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公开(公告)号：US10893579B2
公开(公告)日：2021-01-12
申请号：US16037626
申请日：2018-07-17
Applicant: WHIRLPOOL CORPORATION
Inventor： Carlo Calesella , Andrea Gallivanoni , Davide Parachini , Cristiano Vito Pastore
Abstract: A method for operating an induction cooking hob including a plurality of inductors in association with induction resonant inverters operating in load-dependent frequency ranges includes a simultaneous activation of inductors, in at least one phase of the control period, independently from their association to one or more overlying cooking utensils but only according to at least partial overlapping of associated operating frequency ranges.
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18.发明申请公开(公告)号：US20190327793A1
公开(公告)日：2019-10-24
申请号：US15960006
申请日：2018-04-23
Applicant: WHIRLPOOL CORPORATION
Inventor： Salvatore Baldo , Andrea Gallivanoni , Davide Parachini , Cristiano Vito Pastore
Abstract: An induction heating device comprises a power supply configured to supply D.C. power and a plurality of resonant loads. Each of the resonant loads comprises a first node and a second node. The first nodes are in connection with the power supply. The device further comprises a plurality of first switching devices. One of the first switching devices is in connection with the second node of each one of the resonant loads. A second switching device is in connection with each of the first switching devices. A union of activation of one or more activated first switching devices and the second switching device supplies current from the power supply through the resonant loads in connection with the one or more activated first switching devices.
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公开(公告)号：US12302478B2
公开(公告)日：2025-05-13
申请号：US15959983
申请日：2018-04-23
Applicant: WHIRLPOOL CORPORATION
Inventor： Salvatore Baldo , Marco Forgione , Andrea Gallivanoni , Cristiano Vito Pastore
IPC: H05B6/06 , H02M7/06 , H02M7/48 , H02M7/5395 , H05B6/12
Abstract: An induction heating device comprises a D.C. power supply referenced to a ground connection. The D.C. power supply is configured to supply power to the induction heating device and comprises a voltage rectifier configured to rectify an input voltage into a direct current and output the D.C. voltage to a D.C. bus and a ground connection. The device further comprises a plurality of resonant loads arranged in a matrix comprising a plurality of columns and a plurality of rows. Each of the resonant loads is connected at a first end to a row and at a second end to a column. A plurality of first switching devices are in connection with each of the columns between the D.C. bus and at least one of the resonant loads. A plurality of second switching devices are in connection with each of the rows between the resonant loads and the ground connection.
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公开(公告)号：US20250119988A1
公开(公告)日：2025-04-10
申请号：US18377527
申请日：2023-10-06
Applicant: WHIRLPOOL CORPORATION
Inventor： Andrea Gallivanoni , Mario Barbati , Salvatore Baldo
Abstract: A printed circuit board including (a) a heat sink projecting from a first primary surface and defining a first section and a second section of the first primary surface, (b) one or more rectifier components, (c) a smoothing component disposed at the first section in electrical communication with the one or more rectifier components, (d) inverter components in electrical communication with the one or more rectifier components and the smoothing component, the inverter components including (i) at least one capacitor and at least one connector for an induction coil both disposed at the second section and (ii) a controllable solid-state switching device functionally operable with the at least one capacitor and the at least one connector disposed at a second primary surface of the printed circuit board or second section of the first primary surface.
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