Samsung Electronics Co., Ltd.

Young-Won Cho

Sung-ho Lee

Tae-Soo Kim

Chul Kyu Kim

Jung-Ho Lee

Yong-Woon Han

Seong-Deog Jang

Dae-Sung Han

Han-Seong Kang

Jung-Eui Hoh

Kyung-hee Hahm

Joo-Yong Yeo

Hong-Kil Choe

Kyung-Hee Hahm

Kyung-Hoo Hahm

Too-Soo Kim

Jong-hak Lee

An electrical oven and method of controlling the same includes a heater heating unit to heat food using an electric heater; an induction heating unit to heat the food using a high-frequency current, and a control unit to drive the heater heating unit and the induction heating unit simultaneously in a preheating cooking mode. The electric oven of the present invention carries out heating by the electric heater and induction heating by high-frequency current, so preheating time required for an inner temperature of a cooking cavity to reach a preheating temperature is decreased, thereby reducing a total cooking time.

Electric oven and method of controlling the same

A microwave oven having a magnetron that generates microwaves, a magnetron driving circuit that supplies high voltage power to the magnetron and a machine room that accommodates the magnetron and the magnetron driving circuit. The microwave oven includes a single magnetron driving circuit board in which the magnetron and the electronic devices of the magnetron driving circuit are mounted thereon. The single magnetron driving circuit board is fixedly attached to the machine room by mounting members.

Magnetron driving circuit board for microwave oven

A method for controlling a rice cooking operation in a microwave oven including setting up at least one rice cooking operation in the microwave oven based upon the amount of rice and water mixture; heating the rice and the water in a cooking chamber using a magnetron; computing the amount of the rice and the water by measuring a vapor concentration within the cooking chamber; and cooking the rice according to a cooking operation corresponding to the computed amount of rice and water. Further, the present invention provides a microwave oven having at least one rice cooking operation and a method of controlling the same, in which rice is cooked by automatically sensing the amount of rice and water content using the method.

Microwave oven having rice cooking function and method of controlling the same

A method of controlling a microwave oven, in which the microwave oven includes a cooking chamber for containing food therein, a cooling fan which circulates air, a magnetron which generates microwaves and a humidity sensor which senses humidity of the cooking chamber. Cooking instruction(s) may be preset or set manually by a user. A first cooking operation is performed according to the set cooking instruction(s). A cook time required to perform a second cooking operation is set based on a time required to perform the first cooking operation. The second cooking operation is performed for the cook time while controlling the output power of the magnetron to perform a rapid cooking operation.

Method of controlling microwave oven

A method of controlling a microwave oven, in which the microwave oven includes a cooking chamber for containing food therein, a cooling fan which circulates air, a magnetron which generates microwaves and a humidity sensor which senses humidity of the cooking chamber. Cooking instruction(s) may be preset or set manually by a user. A first cooking operation is performed while preventing water from boiling off/to overflow by controlling an output power of the magnetron according to the set cooking instruction(s). A time required to perform a later cooking is set according to a time required to perform the first cooking operation. A second cooking operation is performed for the later cook time while controlling the output power of the magnetron to reduce the overall cook time of the food.

A method of controlling a microwave oven, in which the microwave oven includes a cooking chamber for containing food therein, a cooling fan which circulates air, a magnetron which generates microwaves and a humidity sensor which senses humidity of the cooking chamber. Cooking instruction(s) may be preset or set manually by a user. A first cooking operation is performed while preventing water from boiling off/to overflow by controlling an output power of the magnetron according to the set cooking instruction(s). A time required to perform a second cooking operation is set based on a time required to perform the first cooking operation. The second cooking operation is performed for the second cooking time while steam boiling the food.

A microwave oven which has a simple structure, and steams food placed in a cooking cavity without having a separate steaming container. The microwave oven includes the cooking cavity provided in a cabinet, a magnetron provided outside the cooking cavity to irradiate microwaves into the cooking cavity, and a microwave inlet hole formed on a predetermined portion of the cooking cavity to irradiate the microwaves from the magnetron into the cooking cavity. A steaming plate is provided in the cooking cavity so as to partition the cooking cavity into upper and lower sections, and blocks the microwaves and allows water vapor to pass therethrough. The microwave inlet hole communicates with a bottom of the steaming plate provided in the cooking cavity.

Microwave oven having a steaming plate

An apparatus and a method of controlling a microwave oven includes performing a first heating until detection values of a humidity sensor reach a reference value, wherein the humidity sensor senses humidity of water vapor discharged from a cooking chamber. A second heating is performed, lower than the first heating, after the detection values reach the reference value using an output power from a magnetron. A surrounding humidity condition of the microwave oven is determined. The reference value of the first heating is reset so as to cook food appropriately according to the determined humidity condition.

Apparatus and method of controlling a microwave oven

A microwave oven comprises a magnetron having an anode, a cathode and a filament, and a high voltage transformer having a primary coil and a secondary coil for supplying a high voltage to the magnetron. The microwave oven further comprises a capacitor connected in parallel to the secondary coil of the high voltage transformer, forming a resonance circuit with the secondary coil. With this configuration, the performance of the magnetron is maintained by lowering the anode peak voltage applied thereto during the early non-oscillating period, and the circuit elements are protected from damage by removing the surge voltage.

Microwave oven and method for controlling voltage thereof

Disclosed is a microwave oven including a magnetron, a power supply part supplying an AC power and a high voltage transformer generating a high voltage with the AC power from the power supply part, comprising a power controller part interrupting the power supply to the magnetron where it is determined that the voltage of the power supplied from the power supply part is lower than a predetermined allowable lower limit voltage. With this configuration, application of the voltage lower than the allowable lower limit voltage can be prevented, and in addition, the stability of the circuit can be enhanced.

Microwave oven and control method thereof

A microwave oven includes a power supplying part, a cooking chamber, a door of the cooking chamber, a magnetron, and high and low voltage generating parts supplying voltage to the magnetron, further including: a door switch installed on branch lines of a power line toward the high and low voltage generating parts, operating depending on opening and closing the door and selectively connecting the power supplying part with the high and low voltage generating parts; a power saving switch controlling a connection between the power supplying part and the low voltage generating part; and a controller switching off the power saving switch when a predetermined time elapses after the magnetron stops operating. With this configuration, in the microwave oven, a power saving function can be automatically selected, and automatically suspended when the door is opened.

Microwave oven and method for controlling power saving mode thereof

Disclosed is a microwave oven capable of cooking food according to an output mode in response to an output level of its magnetron, including a fan motor having a low-speed node and a high-speed node to receive power, and having a turning speed variable in response to a node connecting state; an output mode selecting part through which one of output modes is selected; a switching part having at least one switch for switching power applied to the low-speed node or high-speed node of the fan motor; and a control unit controlling the switching part in response to an output mode selected by the output mode selecting part, thus preventing its electrical components from being overheated.

Microwave oven having overheat preventing function and method of controlling its fan motor

A method for controlling a microwave oven including a power supply part supplying an AC power, a high voltage transformer generating a high voltage with the AC power generated from the power supply part, a magnetron generating electromagnetic waves with the high voltage generated from the high voltage transformer, and a control signal generator part supplying a control signal to the magnetron, the method including the steps of: setting up a reference oscillation time; measuring the time when the magnetron starts being oscillated according to the control signal; comparing the reference oscillation time with the oscillation start time; and adjusting a pulse width of the control signal where the reference oscillation time is longer than the oscillation start time. With this configuration, the temporary surge operation and the noise generation can be lowered in the hot state, thereby serving to enhance a stability of the circuit.

Microwave oven and method of controlling the same

A microwave oven comprising a magnetron for generating a high frequency in response to a high voltage, a transformer having primary and secondary coils, the transformer generating the high voltage in a turn ratio of the primary and secondary coils and supplying it to the magnetron, and high-power output switching means for controlling the level of a voltage applied to the primary coil of the transformer. The microwave oven with the high-power output switching means can control its maximum power output level on the basis of an allowable amount of current supplied to a distribution board.

Microwave oven with high-power output switching means

A microwave oven includes a hood unit including a hood motor, a magnetron, a transformer having primary and secondary coils, the transformer generating a high voltage in a turn ratio of the primary and secondary coils and supplying the generated high voltage to the magnetron, a hood unit driver for controlling an operation of the hood unit, power output switching means for controlling the level of a voltage to be supplied to the transformer, and a controller for controlling the power output switching means to control the level of the voltage to be supplied to the transformer according to a given operation mode of the hood unit. The power output level of the microwave oven is automatically controlled according to a given operation mode of the hood motor such that the sum of the oven power output and the hood motor power output is constant.

Growing community of inventors

Suwon, South Korea

Young-Won Cho