INDUCTION HEATING DEVICE AND LOAD DETECTION METHOD IN INDUCTION HEATING DEVICE

INDUCTION HEATING DEVICE AND LOAD DETECTION METHOD IN INDUCTION HEATING DEVICE

In a multi-coil induction heating device, driver (4) supplies a first detection current which is a high frequency power to a plurality of heating coils (3) provided below a top panel on which a load is placed. Controller (50) determines whether a load is placed above the plurality of heating coils (...

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Hauptverfasser: TAKEBE, Masaya, KINOSHITA, Masashi, KUROSE, Yoichi
Format: Patent
Sprache:eng ; fre ; ger
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ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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creator TAKEBE, Masaya
KINOSHITA, Masashi
KUROSE, Yoichi
description In a multi-coil induction heating device, driver (4) supplies a first detection current which is a high frequency power to a plurality of heating coils (3) provided below a top panel on which a load is placed. Controller (50) determines whether a load is placed above the plurality of heating coils (3) based on an electric signal in response to the first detection current. When controller (50) determines that a load is not placed above the plurality of heating coils (3), driver (4) supplies a second detection current, which is a high frequency power and has a larger current value than the first detection current, to the plurality of heating coils (3). Controller (50) determines whether a load is placed above the plurality of heating coils (3) based on an electric signal in response to the second detection current. According to this aspect, energy-saving and accurate load detection is possible in a short time in the multi-coil induction heating device.
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subjects ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
title INDUCTION HEATING DEVICE AND LOAD DETECTION METHOD IN INDUCTION HEATING DEVICE
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