Patent
Electromagnetic cooker including load control
Reads0
Chats0
TLDR
In this paper, an electromagnetic cooking apparatus includes a DC (direct current) power supply, a DC-to-AC inverting circuit coupled to the DC power supply and including a switching element and also a heating coil, for heating a metal pan by energizing the heating coil with the high-frequency AC power.Abstract:
In an electromagnetic cooking apparatus, low heating power control is carried out by turning ON/OFF a DC power supply circuit, or rectifier circuit, at a commercial frequency lower than an inverting frequency of DC/AC inverter. The electromagnetic cooking apparatus includes: a DC (direct current) power supply for producing DC power from low-frequency AC (alternating current) power; a DC-to-AC inverting circuit coupled to the DC power supply and including a switching element and also a heating coil, for inverting the DC power inputted from the DC power supply into high-frequency AC power so as to heat a metal pan by energizing the heating coil with the high-frequency AC power, thereby electromagnetically inducing eddy currents within the metal pan; a monitoring circuit for monitoring switching conditions of the switching element so as to output a switching condition signal; and an ON/OFF-controlling circuit for turning ON/OFF power supply operation of the DC power supply, or inverting operation of the DC/AC inverter circuit in response to the switching condition signal at a timing period defined by a time constant smaller than a thermal time constant determined by a heat capacity of a metal material of the pan.read more
Citations
More filters
Patent
Apparatus and method for heated food delivery
TL;DR: In this paper, a delivery apparatus consisting of a container for holding an article to be delivered and a heater is described, and the heater is provided for placement within the interior area for heating the article.
Patent
RFID-controlled smart range and method of cooking and heating
TL;DR: In this article, the authors present a system and method for providing multiple cooking modes and an ability to automatically heat cooking vessels and other objects using RFID technology, and the ability to read and write heating instructions and to interactively assist in their execution.
Patent
Boil detection method and computer program
TL;DR: A method, computer program, and cooking device for detecting boiling of liquids is described in this paper, which is implemented with a compute program executed by a processor or other computing device of a cooking unit such as an induction range.
Patent
Inductive cooking range and cooktop
William D. Barritt,Jong Hak Lee +1 more
TL;DR: An induction cooking apparatus and method for inductively heating cookware is provided in this article, where an analog/digital circuit, including a microprocessor, generates a plurality of gating pulses for operating the power inverter circuit and monitors the operation of the power-inverse circuit.
Patent
Low profile induction cook top with heat management system
TL;DR: An induction cook top with a heat management system is described in this paper, which provides improved air flow past and around the internal electronic components of the cook top and provides a vented housing and direct airflow into and out of the housing.
References
More filters
Patent
Induction heating cooking appliance
TL;DR: In this article, an induction heating type cooking appliance is adapted to heat a pan by induction heating, and an input unit includes touch control keys and has a timer function so that the power supply is turned on only when at least two keys are actuated properly within a given length of time.
Patent
Small load detection by comparison between input and output parameters of an induction heat cooking apparatus
TL;DR: In this article, a comparator is used to compare the input and output parameters of the inverter and latches a bistable device when the input power is smaller than the output power.
Patent
Induction heating apparatus with negative feedback controlled pulse generation
TL;DR: In this paper, an induction heating apparatus includes a DC power source, a transistor for generating a trigger current in response to a base drive pulse applied thereto, and a resonant load circuit including a work coil and a capacitor.
Patent
Static power frequency converter
TL;DR: Le convertisseur statique de l'invention comporte un calculateur central (15) mesurant la tension de sortie (TM3), le courant de sorties (TM4), le Courant de redresseur (5) and le temps de polarisation inverse (8) des thyristors du commutateur (5, this article ).
Patent
Induction heating cooking apparatus
TL;DR: In this paper, a load detecting circuit detects a ratio of the conduction period of the flywheel diode with respect to the oscillation cycle of the inverter, thereby detecting a proper or improper state of a load placed on the top plate in accordance with the above described ratio.