KR20220026850A - Microwave oven and method for controlling microwave oven - Google Patents

Abstract

The present specification relates to a microwave oven and a method for controlling the microwave oven. In one embodiment of the present specification, a controller reads a voltage value of a humidity sensor at the zero crossing point between an oscillation section and a non-oscillation section of a magnetron to obtain a humidity value of the air flowing inside a cooking chamber. As such, if the humidity value of the air is obtained at the zero crossing point between the oscillation section and the non-oscillation section of the magnetron, an accurate humidity value of the air flowing inside the cooking chamber may be obtained regardless of a connection state between a connector of the magnetron and cable of a transformer, in a manufacturing process of the microwave oven.

Description

MICROWAVE OVEN AND METHOD FOR CONTROLLING MICROWAVE OVEN

The present specification relates to a microwave oven and a method for controlling the microwave oven.

A microwave oven is a device for cooking food with frictional heat between molecules by irradiating microwaves generated by applying power to a magnetron to vibrate the molecules constituting the food after storing and sealing the food. Microwave ovens are easy to control temperature by instantaneous start, stop, and output adjustment, and allow uniform cooking of food of various sizes and shapes due to the simultaneous heating of each part of food, saving cooking time, and convenience of operation, etc. It is widely used due to its various advantages.

1 is an exploded perspective view of a typical microwave oven.

Referring to FIG. 1 , a microwave oven includes a body 10 having an empty space therein. An empty space inside the main body 10 is referred to as a cooking compartment 12 , and food to be cooked by a user is drawn in or out of the cooking compartment 12 . The opened front side of the cooking chamber 12 is opened and closed by a door (not shown).

The electric chamber 20 is formed on the side surface of the main body 10 . Although not shown in the drawings, a case (not shown) covering the upper and side surfaces of the main body 10 is coupled to the main body 10 so that the electric vehicle room 20 is shielded from the outside. In addition, the base plate 21 is coupled to the lower portion of the main body 10 so that the electric vehicle room 20 is shielded from the outside.

A magnetron 22 , a transformer 24 , and a blower fan assembly 26 are disposed in the electric cabinet 20 .

The magnetron 22 is oscillated by AC power supplied from the transformer 24 to generate microwaves. The magnetron 22 is fixed to the side of the electric vehicle chamber 20 by a fixing member. The transformer 24 converts external power into AC power for oscillation of the magnetron 22 and supplies it. Transformer 24 comprises two cables 24a, 24b having different phases. The two cables 24a and 24b are respectively connected to a connector 22a formed on one side of the magnetron 22 .

The blowing fan assembly 26 includes a blowing fan 26a connected to a motor (not shown) to rotate and a fan guide 26b supporting the blowing fan 26a. When the magnetron 22 is driven to start cooking, the blower fan 26a rotates to flow the air inside the electric cabinet 20 .

A back plate 28 is disposed on the rear surface of the body 10 . The backplate 28 is formed with an external air inlet 28a including a plurality of holes. When the blowing fan 26a rotates, air from the outside of the electric vehicle room 20 is introduced into the electric machine room 20 through the external air inlet 28a.

An internal air inlet 23a including a plurality of holes is formed on the wall surface of the main body 10 forming the boundary between the electric cabinet 20 and the cooking chamber 12 . Also, an air duct 25 covering the internal air inlet 23a is disposed inside the electric vehicle room 20 . In addition, an internal air outlet 12a including a plurality of holes is formed on the wall opposite to the wall surface of the main body 10 forming the boundary between the electric cabinet 20 and the cooking chamber 12 . Accordingly, some of the air introduced into the external air inlet 28a flows into the cooking chamber 12 through the internal air inlet 23a, and the air flowing in the cooking compartment 12 flows through the internal air outlet 12a. is emitted

On the other hand, the humidity sensor 14 is disposed on one side of the internal air outlet (12a). The humidity sensor 14 is for sensing the humidity of the air inside the cooking chamber 12 discharged through the internal air outlet 12a. The humidity sensor 14 includes a variable resistor whose resistance value changes according to the humidity of the surrounding air. A controller (not shown) obtains a humidity value of the air inside the cooking chamber 12 based on a voltage output from the humidity sensor 14 , and controls driving of the magnetron 22 based on the obtained humidity value.

2 and 3 are graphs each showing a timing at which a controller acquires a humidity value of air inside a cooking chamber in a microwave oven according to the related art. 2 and 3 , the horizontal axis represents the driving time of the magnetron, and the vertical axis represents the oscillation voltage of the magnetron.

When the user puts food in the cooking chamber 12, closes the door (not shown) and inputs a cooking command, the controller (not shown) drives the transformer 24 to supply AC power to the magnetron 22 to supply the magnetron ( 22) is driven.

2 and 3 , the driving section of the magnetron 22 is divided into an oscillation section in which the magnetron 22 oscillates and a non-oscillation section in which the magnetron 22 does not oscillate.

For example, in the embodiment of FIG. 2 , a section in which the oscillation voltage is V1 (0 to T1, T2 to T3, T4 to T5) is an oscillation section, and a section (T1 to T2, T3 to T4, T5 to T6) in which the oscillation voltage is V2 is an oscillation section. ) is the non-oscillation section. However, in the oscillation section (0 to T1, T2 to T3, T4 to T5) of the magnetron 22, noise is generated in the voltage output by the humidity sensor 14 due to the driving of the magnetron 22, so accurate humidity measurement is not possible. it gets difficult Therefore, the controller (not shown) according to the prior art measures the magnitude of the voltage output by the humidity sensor 14 in the non-oscillation sections (T1 to T2, T3 to T4, T5 to T6) of the magnetron 22, and the cooking chamber ( 12) Acquire the humidity value of the air flowing inside.

Meanwhile, in the manufacturing process of the microwave oven, two cables 24a and 24b having different phases included in the transformer 24 are respectively connected to the connector 22a formed on one side of the magnetron 22 . However, when the operator connects the two cables 24a and 24b to the connector 22a so that the difference between the two cables 24a and 24b is opposite to the embodiment of FIG. 2, as shown in FIG. 3, the magnetron ( 22), the oscillation sections (T1 to T2, T3 to T4, T5 to T6) and non-oscillation sections (0 to T1, T2 to T3, T4 to T5) are the oscillation section and non-oscillation section in the embodiment of FIG. appear opposite to each other.

If the two cables 24a and 24b are connected to the connector 22a as in the embodiment of FIG. 3 , the controller (not shown) outputs the voltage from the humidity sensor 14 at the same timing as the embodiment of FIG. 2 . When measuring the size of the controller (not shown), the oscillation period (T1 to T2, T3 to T4, T5 to T6), not the non-oscillation period (0 to T1, T2 to T3, T4 to T5) of the magnetron 22 To measure the magnitude of the voltage output by the humidity sensor 14. Accordingly, since the voltage output from the humidity sensor 14 includes noise generated by the magnetron 22 , the controller (not shown) cannot obtain an accurate humidity value of the air flowing inside the cooking chamber 12 .

After all, according to the prior art, the timing at which the controller acquires the humidity of the air inside the cooking chamber may vary depending on the connection state between the connector of the magnetron and the cable of the transformer during the manufacturing process of the microwave oven. In particular, according to the prior art, there is a possibility that the timing at which the controller acquires the humidity of the air inside the cooking compartment coincides with the non-oscillation section of the magnetron, and in this case, it is difficult for the controller to obtain an accurate humidity value of the air inside the cooking compartment.

In addition, since the controller fails to obtain an accurate humidity value of the air inside the cooking chamber, there is a problem in that the cooking performance of the microwave oven is lowered and user dissatisfaction increases.

An object of the present specification is to provide a microwave oven and a control method of a microwave oven capable of accurately acquiring the humidity value of the air flowing inside the cooking chamber regardless of the connection state of the connector of the magnetron and the cable of the transformer during the manufacturing process of the microwave oven will be.

Another object of the present specification is to provide a microwave oven and a microwave oven control method capable of improving cooking performance by accurately acquiring a humidity value of air flowing inside a cooking chamber.

The objects of the present specification are not limited to the objects mentioned above, and other objects and advantages of the present specification that are not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present specification. It will also be readily apparent that the objects and advantages of the present specification may be realized by the means and combinations thereof indicated in the appended claims.

In one embodiment of the present specification, the controller reads the voltage value of the humidity sensor at the zero crossing point between the oscillation section and the non-oscillation section of the magnetron to obtain the humidity value of the air flowing inside the cooking chamber. As such, if the humidity value of the air is obtained at the zero crossing point between the oscillation section and the non-oscillation section of the magnetron, regardless of the connection state between the connector of the magnetron and the cable of the transformer during the manufacturing process of the microwave oven, the An accurate humidity value can be obtained.

The microwave oven according to an embodiment of the present specification includes a main body having a cooking compartment formed therein, a magnetron generating microwaves supplied to the cooking compartment, a humidity sensor sensing humidity of air flowing in the cooking compartment, and the humidity sensor and a controller for controlling driving of the magnetron based on the humidity value of the air obtained using do.

In one embodiment of the present specification, the zero crossing time is a time when the magnetron is switched from the oscillation section to the non-oscillation section or a time when the magnetron is switched from the non-oscillation section to the oscillation section.

In addition, in one embodiment of the present specification, the controller checks the flag value of the sensor lead flag every predetermined first driving period, and if the flag value is a predetermined first set value, the humidity of the air using the humidity sensor After obtaining the value, the flag value is set to a predetermined second set value.

In addition, in one embodiment of the present specification, the flag value of the sensor read flag is set to the first set value for each predetermined second driving period.

In addition, the control method of a microwave oven according to an embodiment of the present specification includes the steps of driving a magnetron according to a user's driving command, and when the magnetron is driven, a current time point is zero crossing between an oscillation section and a non-oscillation section of the magnetron. checking whether the current time point is the zero crossing point, obtaining a humidity value of the air flowing inside the cooking chamber using a humidity sensor and controlling the operation of the magnetron based on the humidity value of the air includes

In one embodiment of the present specification, the zero crossing time is a time when the magnetron is switched from the oscillation section to the non-oscillation section or a time when the magnetron is switched from the non-oscillation section to the oscillation section.

Also, in one embodiment of the present specification, when the magnetron is driven, the step of determining whether the current time point is a zero crossing time between the oscillation section and the non-oscillation section of the magnetron is a flag value of the sensor read flag for each predetermined first driving period and if the flag value is a first preset value, obtaining the humidity value of the air using the humidity sensor, and then setting the flag value as a second preset value.

In addition, in one embodiment of the present specification, the flag value of the sensor read flag is set to the first set value for each predetermined second driving period.

The microwave oven according to an embodiment of the present specification may accurately acquire the humidity value of the air flowing through the cooking chamber regardless of the connection state between the connector of the magnetron and the cable of the transformer during the manufacturing process.

In addition, according to an embodiment of the present specification, the cooking performance of the microwave oven is improved by accurately obtaining the humidity value of the air flowing through the cooking chamber of the microwave oven.

1 is an exploded perspective view of a general microwave oven;
2 and 3 are graphs each showing a timing at which a controller acquires a humidity value of air inside a cooking chamber in a microwave oven according to the related art.
4 is a block diagram of a microwave oven according to an embodiment of the present specification.
5 is a graph illustrating a timing at which a controller acquires a humidity value of air inside a cooking chamber according to an embodiment of the present specification.
6 is a flowchart of a method for controlling a microwave oven according to an embodiment of the present specification.
7 is a flowchart illustrating a process in which a controller acquires a humidity value of air inside a cooking chamber according to an embodiment of the present specification.
8 is a flowchart illustrating a process of setting a flag value of a sensor read flag according to an embodiment of the present specification.

The above-described objects, features, and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which this specification belongs will be able to easily implement the technical idea of the present specification. In the description of the present specification, if it is determined that a detailed description of a known technology related to the present specification may unnecessarily obscure the gist of the present specification, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present specification will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

4 is a block diagram of a microwave oven according to an embodiment of the present specification.

Although not shown, the microwave oven according to an embodiment of the present specification has the same structure as the microwave oven shown in FIG. 1 . In other words, in the microwave oven according to an embodiment of the present specification, as shown in FIG. 1 , the main body 10 in which the cooking chamber 12 is formed, the electric cabinet 20 formed in the side surface of the main body 10, and the main body ( A case (not shown) covering the upper and lower sides of the 10), a base plate 21 coupled to the lower portion of the main body 10, a transformer 24 disposed inside the electric vehicle room 20, and a blower fan assembly 26 ) is included.

Referring to FIG. 4 , the microwave oven according to an embodiment of the present specification includes a controller 30 , a humidity sensor 32 , a magnetron 34 , a first timer 35 , a second timer 36 , and a memory 38 . ) is included.

The controller 30 is disposed inside the electric vehicle room 20 and is connected to a driving circuit for driving the transformer 24 to control the driving of the magnetron 34 . When the controller 30 drives the transformer 24 through the driving circuit, AC power required for driving the magnetron 34 is supplied to the magnetron 34 so that the magnetron 34 is oscillated.

The humidity sensor 32 is a sensor for sensing the humidity of the air flowing inside the cooking chamber 12 . As shown in FIG. 1 , the humidity sensor 32 may be disposed around the internal air outlet 12a, but the location of the humidity sensor 32 may vary depending on the embodiment.

The humidity sensor 32 includes a variable resistor whose resistance value changes according to the humidity of the surrounding air. For example, when the humidity of the surrounding air increases, the resistance value of the variable resistor increases, so that the voltage output from the humidity sensor 32 decreases. Conversely, when the humidity of the surrounding air decreases, the resistance value of the variable resistor decreases, so that the voltage output by the humidity sensor 32 increases. The controller 30 measures the magnitude of the voltage output from the humidity sensor 32 and calculates the humidity value corresponding to the magnitude of the measured voltage with reference to a predetermined formula or table of the air flowing in the cooking chamber 12 . obtained as a humidity value. However, the operating principle and type of the humidity sensor 32 may vary depending on the embodiment.

The magnetron 34 is oscillated by AC power supplied from the transformer 24 to generate microwaves. The magnetron 34 may be configured as a dipole vacuum tube having an anode, a cathode, and a grid. When the microwave generated by the magnetron 34 is emitted to the inside of the cooking chamber 12, the molecules constituting the food vibrate by the microwave to cook the food.

The first timer 35 and the second timer 36 increase the first counter value and the second counter value according to a predetermined period, respectively. As will be described later, the controller 30 recognizes the zero crossing time between the oscillation section and the non-oscillation section with reference to the first counter value and the second counter value, and flows inside the cooking chamber 12 according to the zero crossing time. Obtain the humidity value of the air.

The memory 38 stores data necessary for the controller 30 to control the operation of the microwave oven. In one embodiment of the present specification, the memory 38 may store a sensor read flag value referenced by the controller 30 to obtain a humidity value of the air flowing inside the cooking chamber 12 .

The sensor read flag is a variable indicating the timing at which the controller 30 reads the magnitude of the voltage output from the humidity sensor 32, and is to be set as a first set value (eg, SET) or a second set value (eg, CLR). can If the flag value of the sensor lead flag is the first set value, the controller 30 reads the voltage output from the humidity sensor 32 to obtain the humidity value of the air inside the cooking chamber 12 . If the flag value of the sensor lead flag is the second set value, the controller 30 does not acquire the humidity value of the air inside the cooking chamber 12 .

When the user puts food in the cooking chamber 12, closes the door (not shown) and inputs a cooking command, the controller (not shown) drives the transformer 24 to supply AC power to the magnetron 34 to supply the magnetron ( 34) is driven.

In one embodiment of the present specification, the controller 30 obtains the humidity value of the air inside the cooking chamber 12 at the zero crossing point between the oscillation section and the non-oscillation section of the magnetron 34 when the magnetron 34 is driven. .

5 is a graph illustrating a timing at which a controller acquires a humidity value of air inside a cooking chamber according to an embodiment of the present specification.

As shown in FIG. 5 , when the magnetron 34 is driven, the driving period of the magnetron 34 has an oscillation voltage of V1 (0 to T1, T2 to T3, T4 to T5) and an oscillation voltage of V2. It may be divided into non-oscillation sections (T1 to T2, T3 to T4, and T5 to T6). In one embodiment of the present specification, the controller 30 controls the air inside the cooking chamber 12 at the zero crossing points (T1, T2, T3, T4, T5, T6) between the oscillation section and the non-oscillation section of the magnetron 34, respectively. to obtain the humidity value of

In the present specification, the zero crossing points (T1, T2, T3, T4, T5, T6) are the times when the magnetron 34 is switched from the oscillation section to the non-oscillation section or when the magnetron 34 is switched from the non-oscillation section to the oscillation section. defined as a point in time.

As such, by acquiring the humidity value of the air inside the cooking chamber 12 at the zero crossing points T1, T2, T3, T4, T5, and T6 between the oscillation section and the non-oscillation section of the magnetron 34, the controller 30 is An accurate humidity value can be obtained without the influence of noise according to the oscillation of the magnetron 34 . In particular, when the connection state of the connector of the magnetron and the cable of the transformer is different as in the embodiment of FIG. 3 , that is, when the phases of the cable are connected opposite to each other, the oscillation section and the non-oscillation section of the magnetron 34 are different. Even if the humidity value is obtained, the timing of obtaining the humidity value of the controller 30 remains the same as the zero crossing time point (T1, T2, T3, T4, T5, T6). do. Therefore, it is always possible to obtain an accurate humidity value regardless of the connection state of the connector of the magnetron and the cable of the transformer.

6 is a flowchart of a method for controlling a microwave oven according to an embodiment of the present specification.

When the user's cooking command is input, the controller 30 drives the magnetron 34 ( 602 ).

When the magnetron 34 is driven, the controller 30 checks whether the current time coincides with the zero crossing time between the oscillation section and the non-oscillation section of the magnetron 34 ( 604 ).

As a result of the check 604 , if the current time point does not coincide with the zero crossing time point, the controller 30 does not acquire the humidity value of the air inside the cooking chamber 12 .

As a result of the check 604 , if the current time point coincides with the zero crossing time point, the controller 30 acquires the humidity value of the air inside the cooking chamber 12 through the humidity sensor 32 .

The controller 30 controls the operation of the magnetron 34 based on the obtained humidity value. For example, the controller 30 may increase or decrease the output of the magnetron 34 according to the obtained humidity value. Also, in another embodiment, the controller 30 may adjust the driving time of the magnetron 34 or stop the driving of the magnetron 34 based on the obtained humidity value.

7 is a flowchart illustrating a process in which a controller acquires a humidity value of air inside a cooking chamber according to an embodiment of the present specification.

Referring to FIG. 7 , from the point in time when the controller 30 drives the magnetron 34 according to the user's cooking command, the first timer 35 increments the first counter value by 1 according to a preset first counting period. (702). For example, the first timer 35 increments the first counter value by 1 every 1 ms, which is a preset first counting period. For reference, the first counting period may be set differently according to embodiments.

The controller 30 checks whether the flag value of the sensor read flag stored in the memory 38 matches a predetermined first set value (eg, SET) whenever the first counter value increases by 1 ( 704 ) .

As a result of the check 704 , if the flag value of the sensor lead flag is not SET, the controller 30 does not acquire the humidity value of the air inside the cooking chamber 12 .

As a result of the check 704 , if the flag value of the sensor read flag is SET, the controller 30 sets the flag value of the sensor read flag to a second set value (eg, CLR) 706 , and the humidity sensor 32 outputs By reading the magnitude of the voltage, the humidity value of the air inside the cooking chamber 12 is acquired ( 708 ).

Next, the controller 30 checks whether the magnetron 34 has been driven ( 710 ). As a result of the check 710 , if the magnetron 34 is running, steps 702 to 710 are performed again. As a result of the check 710 , if the operation of the magnetron 34 is finished, the controller 30 ends the acquisition of the humidity value of the air inside the cooking chamber 12 .

According to the embodiment of FIG. 7 , the controller 30 checks the flag value of the sensor read flag every predetermined first driving period, and uses the humidity sensor 32 if the flag value of the sensor read flag is a predetermined first set value. After obtaining the humidity value of the air inside the cooking chamber 12, the flag value of the sensor lead flag is set to a predetermined second setting value. Here, the first driving period coincides with the first counting period (eg, 1 ms) of the first timer 35 . That is, the controller 30 checks the flag value of the sensor read flag every 1 ms. For reference, the first driving period may be set differently depending on the embodiment.

8 is a flowchart illustrating a process of setting a flag value of a sensor read flag according to an embodiment of the present specification.

Referring to FIG. 7 , from the time when the controller 30 drives the magnetron 34 according to the user's cooking command, the second timer 36 increments the second counter value by 1 according to a preset second counting period. (802). For example, the second timer 36 increments the second counter value by 1 every 256 μs, which is a preset second counting period.

The controller 30 checks whether the second counter value is greater than a predetermined first reference value (eg, 78) (804).

If it is determined (804) that the second counter value is greater than a predetermined first reference value (eg, 78), the controller 30 resets the second counter value to zero (806). The controller 30 compares the second counter value with the first reference value and resets the second counter value in order to prevent the second counter value from becoming excessively large, in steps 804 and 806 depending on the embodiment. ) may be omitted. For reference, the first reference value may be set differently according to embodiments.

If, as a result of checking 804, the second counter value is less than or equal to the first predetermined reference value (eg, 78), the controller 30 determines that the second counter value is a multiple of (eg, 26) the second predetermined reference value (eg, 26). 26, 52, ...) (808). For reference, the second reference value may be set differently according to embodiments.

If it is determined (808) that the second counter value is a multiple of the second reference value, the controller 30 sets the sensor read flag to the first set value (eg, SET) ( 810 ).

As a result of the check 808 , if the second counter value is not a multiple of the second reference value, the controller 30 checks whether the operation of the magnetron 34 is terminated ( 812 ).

As a result of the check 812 , if the operation of the magnetron 34 is not terminated, steps 802 to 808 are performed again.

As a result of the check 812 , if the driving of the magnetron 34 is finished, the controller 30 ends the setting operation of the sensor read flag.

According to the embodiment of FIG. 8 , the flag value of the sensor read flag is set to a first set value (eg, SET) every second predetermined driving period (eg, 26×256 μs). Here, the second driving period is set to coincide with the period of the zero crossing time points T1, T2, T3, T4, T5, T6, ... shown in FIG. 5 . In other words, the flag value of the sensor read flag is set to the first set value at each zero crossing time of the magnetron 34 .

As a result, according to the embodiments of FIGS. 7 and 8 , the controller 30 may acquire the humidity value of the air inside the cooking chamber 12 through the humidity sensor 32 at each zero crossing time of the magnetron 34 .

As described above, the present specification has been described with reference to the illustrated drawings, but the present specification is not limited by the embodiments and drawings disclosed in the present specification, and it is apparent that various modifications may be made by those skilled in the art. In addition, although the effects according to the configuration of the present specification are not explicitly described and described while describing the embodiments of the present specification, it is natural that the effects predictable by the configuration should also be recognized.

Claims (8)

a body having a cooking chamber formed therein;
a magnetron for generating microwaves supplied to the cooking chamber;
a humidity sensor for sensing the humidity of the air flowing inside the cooking chamber;
And a controller for controlling the driving of the magnetron based on the humidity value of the air obtained using the humidity sensor,
the controller
Obtaining the humidity value of the air at the zero crossing point between the oscillation section and the non-oscillation section of the magnetron
Microwave.
According to claim 1,
The zero crossing time is a time when the magnetron is switched from the oscillation section to the non-oscillation section or a time when the magnetron is switched from the non-oscillation section to the oscillation section
Microwave.
The method of claim 1,
the controller
The flag value of the sensor lead flag is checked every predetermined first driving period, and if the flag value is a predetermined first set value, the humidity value of the air is obtained using the humidity sensor, and then the flag value is set to a predetermined value. 2 to set
Microwave.
4. The method of claim 3,
A flag value of the sensor read flag is set to the first set value at every second predetermined driving period
Microwave.
driving the magnetron according to the user's driving command;
checking whether a current time point is a zero crossing point between an oscillation section and a non-oscillation section of the magnetron when the magnetron is driven;
acquiring a humidity value of air flowing in the cooking chamber using a humidity sensor when the current time point is the zero crossing time; and
Controlling the operation of the magnetron based on the humidity value of the air
How to control a microwave oven.
6. The method of claim 5,
The zero crossing time is a time when the magnetron is switched from the oscillation section to the non-oscillation section or a time when the magnetron is switched from the non-oscillation section to the oscillation section
How to control a microwave oven.
6. The method of claim 5,
When the magnetron is driven, the step of determining whether a current time point is a zero crossing point between an oscillation section and a non-oscillation section of the magnetron includes:
checking a flag value of a sensor read flag every predetermined first driving period; and
If the flag value is a predetermined first set value, obtaining the humidity value of the air using the humidity sensor and then setting the flag value to a second preset set value
How to control a microwave oven.
8. The method of claim 7,
A flag value of the sensor read flag is set to the first set value at every second predetermined driving period
How to control a microwave oven.

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