CN1105813A - A buzzer driving apparatus of a microwave oven and the method thereof - Google Patents

A buzzer driving apparatus of a microwave oven and the method thereof Download PDF

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Publication number
CN1105813A
CN1105813A CN94116500A CN94116500A CN1105813A CN 1105813 A CN1105813 A CN 1105813A CN 94116500 A CN94116500 A CN 94116500A CN 94116500 A CN94116500 A CN 94116500A CN 1105813 A CN1105813 A CN 1105813A
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China
Prior art keywords
buzzer
alarm
signal
telegraph key
wave oven
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Pending
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CN94116500A
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Chinese (zh)
Inventor
郑晳文
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LG Electronics Inc
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Gold Star Co Ltd
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Application filed by Gold Star Co Ltd filed Critical Gold Star Co Ltd
Publication of CN1105813A publication Critical patent/CN1105813A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)

Abstract

The utility model relates to a driving device and a driving method of a microwave oven buzzer. With the device and the method, the tone of an alarm is significantly changed according to each key and/or a cooking situation. According to the utility model, a reverberation effect generates with a decaying voltage level of the buzzer power after a normal alarm and a specific tone alarm or a certain rhyme is produced according to each key signal or the cooking operation.

Description

A buzzer driving apparatus of a microwave oven and the method thereof
The present invention relates to micro-wave oven (below be referred to as MWO), be particularly related to a kind of micro-wave oven buzzer Drive And Its Driving Method, this drive unit and driving method can produce different alarms according to each telegraph key and/or cooking operation, which telegraph key this alarm indicates be pressed respectively, and/or whether cooking operation carrying out, or cooked and finish etc.
Accompanying drawing 1 is the block diagram of the buzzer drive unit of habitual MWO.With reference to this accompanying drawing 1, the buzzer drive unit of habitual MWO has telegraph key input and the display part 1 that begins or stop and showing cooking operation for the selection cooking operation; According to from the telegraph key signal of telegraph key input and display part 1 with under cooking operation termination situation, make the controller 2 of MWO generation alarm; The buzzer 4 of alarm takes place; For the output signal by slave controller 2 drives the buzzing drive portion 3 of buzzer, and to the buzzer power suppling part of buzzer 4 supply capabilities.
Controller 2 also has a buzzer that is used to take place CF and drives the buzzer drive signal generator 6 of signal, so that drive buzzer 4.
Below the operation of the buzzer drive unit of habitual MWO is illustrated.
When the end user will terminate when telegraph key handled by telegraph key input and display part 1 and/or when cooking operation, 2 pairs of buzzer drive signal generators 6 of controller are controlled so that have the buzzer driving signal of signal specific.Be communicated to buzzer drive division 3 when buzzer drives signal, correspondingly, buzzer driving 3 drives signal with this buzzer and is sent to buzzer 4, and like this, buzzer 4 produces alarm with a specific tone.At this moment, because it only is the alarm of a tone that buzzer 4 takes place a kind of, alarm is a sound that is driven the monotone that signal produced by buzzer, the frequency of this buzzer driving signal is specified by the buzzer drive signal generator, therefore, the end user runs into same tone in each telegraph key signal of being everlasting, and also runs into identical like this tone when the cooking finishes.
As a result, the buzzer drive unit of the above-mentioned MWO of being used to only produces the alarm of a tune, and its shortcoming is: end user's which telegraph key not easy to identify is selected.Owing to the buzzer drive unit of habitually practising MWO can not produce different alarms according to cooking operation of all kinds, it also has another shortcoming, i.e. the cooking operation of which kind of type of the difficult identification of end user carries out, or how it carries out.
The object of the invention is: the buzzer Drive And Its Driving Method that a kind of MWO is provided, produce alarm with this device and method, the tonequality of this alarm changes according to the condition of each telegraph key and/or cooking operation, and correspondingly the end user can clearly discern this alarm.
The present invention seeks to reach like this: the buzzer drive unit according to MWO provided by the present invention is made up of following parts: the selective cooking begins or stops and/or the telegraph key input unit of other cooking operation, and described telegraph key input unit has the telegraph key signal corresponding to institute's selection operation; For controlling the control device of described micro-wave oven operation, this control is to carry out according to this telegraph key signal of exporting from described input unit; Be used under the control of described control device, changing the alarm modifier of alarm with preassigned pattern; The buzzer of the alarm that generation is changed by described alarm modifier.
According to the buzzer driving method of MWO provided by the present invention, formed by the following step:
(a) decision is used to drive the All Time of buzzer and is divided into All Time during the normal alarm and changes alarm therebetween;
(b) normal alarm takes place during described normal alarm; With
(c) alarm that changes during the described change alarm after during the described normal alarm.
The present invention has good result, because the reverberation alarm is sent from MWO, the end user can more clearly discern alarm, and owing to got rid of disagreeable alarm song, the end user can cosily operate MWO, does not also bother at all.
Below by the reference accompanying drawing preferred embodiment of the present invention is described, thereby above-mentioned purpose of the present invention and other advantage just can be more obvious.
Accompanying drawing 1 is the buzzer drive unit block diagram of habitual MWO;
Accompanying drawing 2 is the buzzer drive unit block diagrams according to the MWO of the present invention's first preferred embodiment;
Accompanying drawing 3 is the buzzer drive unit circuit diagrams according to the MWO of the present invention's second preferred embodiment;
Accompanying drawing 4A illustrates the time control signal figure of time controller output from accompanying drawing 3;
Accompanying drawing 4B illustrates from the buzzer drive signal waveform figure of accompanying drawing 3 buzzer drive signal generators 17 outputs;
Accompanying drawing 4C is illustrated in the oscillogram of the C point voltage of surveying in the accompanying drawing 3;
Accompanying drawing 5A illustrates the buzzer power controller performance plot of the drive unit of MWO buzzer of the present invention;
Accompanying drawing 5B illustrates buzzer power supply supply characteristics figure, and this power supply is supplied with and changed by the buzzer power controller among the accompanying drawing 5A;
Accompanying drawing 6 is the flow charts according to the MWO buzzer driving method of the present invention of accompanying drawing 2 preferred embodiments;
Accompanying drawing 7 is the flow charts according to the MWO buzzer driving method of the present invention of accompanying drawing 3 preferred embodiments.
Accompanying drawing 2 is the block diagrams according to the buzzer drive unit of the MWO of the present invention of the present invention's first preferred embodiment.With reference to accompanying drawing 2, the present invention is by being formed as lower member; Telegraph key input and display part 11 that the selective cooking begins or stops cooking operation and/or other cooking operation and use for display operation; Be used to export the controller 12 that control signal and buzzer drive signal, so that take place by according to from telegraph key input and display part 11 with when the alarm that preassigned pattern changed of the telegraph key input signal that stops cooking; Be used to take place the buzzer 14 of alarm; Be used for driving the buzzer drive division 13 of buzzer 14 by the output signal of slave controller 12; Buzzer power suppling part 15 to buzzer 14 supply power; And the buzzer power controller 16 that is used to change alarm, it is to obtain by the control to the buzzer power supplied from buzzer power suppling part 15 according to the output signal of slave controller 12 that this alarm changes.
Controller 12 also is provided with: for the buzzer drive signal generator 17 that buzzer drives signal takes place, this signal is used to drive buzzer 14; Time controller 18 for the time during the change of control buzzer; And the buzzer of being exported from buzzer drive signal generator 17 for storage drives the storage part 19 of signal.In accompanying drawing 2, label 11A represents display window, K 0Be to be used to the telegraph key that begins to cook, K 1To K 8It is the telegraph key of selective cooking kind.
The method of operating of the invention described above first embodiment is as follows:
When at telegraph key input and display part 11 and/or cook will stop the time, the end user operates telegraph key K 0To K 8The time, controller 12 is controlled buzzer drive signal generators 17, and the buzzer driving signal of CF takes place from the delivery outlet B of buzzer drive signal generator subsequently.At this moment, controller 12 is control time controller 18 also, and passes through the delivery outlet A output time control signal of time controller 18 subsequently.Above-mentioned time control signal is the time control signal that is used for control " normal alarm phase " and " changing the alarm phase ", should make " normal alarm phase " buzzer 14 that normal alarm takes place; And being somebody's turn to do the alarm that " changing the alarm phase " changes buzzer generation tonequality, such signal makes buzzer 14 in " normal alarm phase " and " changing the alarm phase " alarm take place in turn.
Simultaneously, when the buzzer from the delivery outlet B of buzzer drive signal generator 17 output drove signal and is conveyed to buzzer drive division 13, buzzer drive division 13 drove signal (the buzzer sound when buzzer receives cyclical signal) period ground driving buzzer 14 according to buzzer.
The buzzer power of supplying from buzzer power suppling part 15 is also according to from the time control signal of time controller 18 and controlled by buzzer power controller 16, and correspondingly, this buzzer power is supplied to buzzer 14 under " normal alarm phase " unattenuated situation with its voltage, and decay the also final mode that disappears gradually to buzzer 14 supplies, shown in accompanying drawing 5B " changing the alarm phase " with its voltage.
At this moment, when the voltage of buzzer power is decayed gradually by 16 of buzzer power controllers, also promptly, in " changing the alarm phase ", buzzer takes place to buzzer 14 by buzzer drive division 13 and drives signal in the buzzer drive signal generator 17 of controller 12 continuously.Therefore, buzzer 14 be subjected to buzzer to drive signal and the gradually decay of buzzer power in " changing the alarm phase " simultaneously the two is controlled, and change into a kind of new pattern according to the attenuation of buzzer power from the alarm certainty that buzzer 14 took place.Also promptly, the sound of buzzer is normal in " normal alarm phase ", then changes " changing the alarm phase ", and therefore, the end user is given in the alarm that the present invention took place sense of hearing identification with improved alarm song.
In above-mentioned first preferred embodiment, if the buzzer of each multiple tone that will match with each telegraph key in telegraph key input and the display part 11 drives signal storage in storage part 19, if and buzzer drive signal generator 17 sends corresponding to the single buzzer driving signal by selected each telegraph key of end user, then buzzer 14 can be corresponding to the alarm that various tones are taken place by selected each telegraph key of end user, and embodiment as mentioned above, alarm also can be changed by buzzer power controller 16.
As a change embodiment to the invention described above, the buzzer that is stored in storage part 19 drives signal to have and telegraph key K on telegraph key input and display part 11 1To K 8The tone of corresponding one of octave at least.Also promptly, in case each single telegraph key respectively controller is provided and ＂ Do ＂, ＂ Re ＂, ＂ Mi ＂, ＂ Fa ＂, ＂ Sol ＂, ＂ La ＂ and the matched tone data of ＂ Si ＂, for example, first telegraph key K 1When providing ＂ Do ＂ and second telegraph key and providing ＂ Re ＂ etc., the tone data of signal takes place to drive as buzzer in buzzer drive signal generator 17, the data of specific tone are taken place corresponding to each in buzzer by the selected telegraph key of end user as a result, and buzzer corresponding to each the alarm of specific tone is taken place by the selected telegraph key of end user as a result.Table 1 illustrates the buzzer driving method of the present invention that uses the music symbol operation.1,2,3,4,5,6,7,1 ＂ Do ＂, ＂ Re ＂, ＂ Mi ＂, ＂ Fa ＂, ＂ Sol ＂, ＂ La ＂, ＂ Si ＂, the ＂ Do ＂ that represents octave respectively in the table 1.(being expressed as 1,2,3,4,5,6,7,1) with Arabic numerals.
Table 1
Telegraph key number K1 K2 K3 K4 K5 K6 K7 K8
Frequency 1 2 3 4 5 6 7 1
As another change embodiment to the invention described above, when the melody data of particular songs is stored in storage part 19, buzzer drive signal generator 17 takes place to drive the identical melody data of signal with buzzer, when the cooking will stop, the buzzer 14 last alarms that a melody rather than a tone take place.At this moment, because the melody that is taken place from buzzer 14 also can be changed by the buzzer power at buzzer power controller 16 certainly, the end user can have more various for the operation of MWO and identification preferably.
Accompanying drawing 3 is buzzer drive unit second preferred embodiments of MWO of the present invention.
With reference to accompanying drawing 3, buzzing drive division 13 has the transistor T R that is used for driving by its own switch buzzer 14 2, this transistorized switch is to drive signal according to the buzzer from the buzzer drive signal generator to carry out.
Buzzer power controller 16 has transistor T R 1, this transistor T R 1, carry out switch by time control signal, so that to buzzer supply or cut-out buzzer power, this buzzer power is exported from power suppling part from time controller 18.
Buzzer power controller 16 also is provided with resistor R 1With capacitor C 1With convenient transistor T R 1During connection, to the buzzer supply by capacitor C 1The buzzer power that is charged into; And as transistor T R 2During disconnection, from capacitor C 1Discharge to buzzer 14 with certain decay.
In conjunction with the accompanying drawings 3,4A, 4B, 4C and 7 pairs as mentioned above the operation of present embodiment describe as follows:
With reference to accompanying drawing 3, the time controller 18 in controller 12 is by delivery outlet A output time control signal, signal shown in accompanying drawing 4A.As the buzzer T during sounding not 2This time control signal " height " during this time, and the T when the normal sounding of buzzer 1Its time control signal " low " then during this time, and again at the change T of alarm of buzzer 0Become once again during this time " height ".
With reference to accompanying drawing 4A and accompanying drawing 7, be used to drive the All Time T(=T of buzzer 14 when controller 12 decisions 1+ T 0) after, controller 12 outputs are used to drive the time control signal of buzzer, so that at T 1Normal alarm takes place during this time, and, if T 1Stop, then controller 12 outputs are used to drive the time control signal of buzzer, so that at T 0Alarm during this time changes.At this moment, the time of time control signal is by timer (time counter) counting that is installed in the controller 12.
Simultaneously, at the buzzer drive signal generator 17(in the controller 12 shown in accompanying drawing 4B) buzzer of output signal specific drives signal, and this signal is at T 2Do not export during this time, but at T 1And T 0Then export during this time from delivery outlet B.
Therefore, when at T 2During this time, during the level of time control signal " height ", transistor T R 1Disconnect, thereby cut off buzzer power.As a result, buzzer sounding not.
Yet, stopping telegraph key and/or cook and will stop if press, time control signal is at T 1Become during this time " low ", shown in accompanying drawing 4A, and buzzer drive signal generator 17 output buzzers driving signals, shown in accompanying drawing 4B, subsequently, drive signal and conversioning transistor TR according to buzzer 2
As a result, at T 1During this time, transistor T R 1Connection is supplied power and capacitor C with buzzer power to buzzer 14 1Pass through resistor R 1Charge into buzzer power and supply the level of voltage (Vcc) up to power.Simultaneously, when transistor 14 at T 1Period ground on/off, buzzer 14 be therefore voltage and alarm can take place, and shown in accompanying drawing 4C, this voltage is the C point measurement on accompanying drawing 3.
Accompanying drawing 5A is illustrated in capacitor C 1The voltage that one end is surveyed, this voltage is at T 1After being recharged during this time again at T 0From the voltage of capacitor discharge, accompanying drawing 5B illustrates the voltage that puts on buzzer 14 during this time.
T when " during the normal alarm " 1During termination, the T of controller (shown in accompanying drawing 4A) ＂ during ＂ changes alarm 1Be in the time control signal of the high ＂ state of ＂ during this time by delivery outlet A output, then, make transistor T R 1Disconnect.At this moment, buzzer drive signal generator 17 also recurs buzzer by delivery outlet B and drives signal, shown in accompanying drawing 4B.
As transistor T R 1Disconnect capacitor C 1Pass through resistor R 1Emit once at T 1The buzzer power that charges into during this time, subsequently, at the T of " during changing alarm " 0During this time with gradually the decay buzzer power to the buzzer supply.At this moment, be output continuously because buzzer drives signal, buzzer power is at the T of " during changing alarm " 0Changed by above-mentioned buzzer signal during this time (shown in accompanying drawing 4C).The slope of buzzer power is complied with by resistor R 1With capacitor C 1The time constant that is determined and deciding, and the end user can hear the change alarm of reverberation type.
When using up for the whole time T that drives buzzer, the change process of ＂ finishes owing to termination output buzzer drives signal during ＂ changes alarm.
The operation of above-mentioned change warning can be respectively applied for following each situation: corresponding to each indivedual telegraph key the buzzer of various tones is driven signal storage in storage part 19; Corresponding to each indivedual telegraph key tone data is stored in the storage part 19; And melody data is stored in the storage part 19.
The result of above-mentioned first embodiment also can be respectively applied for above-mentioned three kinds of situations.
Accompanying drawing 7 is depicted as storage part 19 taking-ups of slave controller 12 and drives the algorithm flow chart of the tone data of buzzer 14.
With reference to accompanying drawing 7, find the signal of telegraph key signal and/or expression termination when controller 12, this controller determines tone such as ＂ Do ＂, ＂ Re ＂, ＂ Mi ＂, ＂ Fa ＂, ＂ Sol ＂, ＂ La ＂ or ＂ Si ＂ (being expressed as 1,2,3,4,5,6,7 with Arabic numerals) and music symbol such as minim, 1/4th notes, 1/8th notes or the ten sixth notes etc. of one of octave from tone data, and makes buzzer drive signal generator 17 drive signal according to the tone data output buzzer of delivery outlet B.
At this moment, time controller 18 is by delivery outlet A output time control signal, shown in accompanying drawing 4A, 4B and 4C.
T in " during the normal alarm " 1During this time, controller drives signal to the buzzer of buzzer output specific tone, so that according to the alarm of each singly-bound generation specific tone, if T 1Termination during this time, controller output high level time control signal then is so that cut off buzzer power, subsequently as the T of " during changing alarm " 0During this time, export the specific tone buzzer continuously to buzzer 14 and drive signal.
If " change during the alarm " and T 0Termination during this time, controller 12 stops to export tone data; And judge whether that other tone data will be exported in addition.If controller finds new tone data, then repeat above-mentioned steps till not having tone data.If controller 12 can not find new tone data, then stop above-mentioned series of steps.
In said method, because buzzer drives the telegraph key K of signal according to telegraph key and display part 11 1To K 8Each singly-bound and being stored is played a first simple song so the end user can handle telegraph key.

Claims (11)

1, a kind of buzzer drive unit of micro-wave oven is characterized in that being made up of following parts: the selective cooking begins or stops and/or the telegraph key input unit of other cooking operation, and described telegraph key input unit has the telegraph key signal corresponding to institute's selection operation; For controlling the control device of described micro-wave oven operation, this control is to carry out according to this telegraph key signal of exporting from described input unit; Be used under the control of described control device, changing the alarm modifier of alarm with preassigned pattern; The buzzer of the alarm that generation is changed by described alarm modifier.
2, according to the buzzer drive unit of the described micro-wave oven of claim 1, it is characterized in that described control device is provided with: output control signal and buzzer drive the controller of signal, when being used to select to cook beginning or stopping and/or have described telegraph key signal to exist during other cooking operation or the alarm that preassigned pattern changed into alarm by this controller when cooking; Drive the buzzer drive unit of described buzzer according to the described buzzer driving signal that comes from described controller, and wherein said alarm modifier comprises: for applying the buzzer output control device of power by described controller control to described buzzer, so that change said alarm.
3, according to the buzzer drive unit of the described micro-wave oven of claim 1, it is characterized in that: described control device is provided with the storage device that the storage buzzer drives signal, this buzzer drives signal and have various tones in each singlet linkage, and described control device is imported described buzzer driving signal corresponding to each telegraph key that each is selected from described telegraph key input unit from described storage device.
4, according to the buzzer drive unit of the described micro-wave oven of claim 3, it is characterized in that: the buzzer driving signal that is stored in the described storage device comprises at least one tone data.
5, according to the buzzer drive unit of the described micro-wave oven of claim 3, it is characterized in that: the buzzer driving signal that is stored in the described storage device comprises a series of melody data.
6, a kind of buzzer driving method of micro-wave oven, it is characterized in that comprising the steps: that (a) decision is used to drive the All Time of buzzer and is divided into All Time during the normal alarm and changes alarm during; (b) normal alarm takes place during described normal alarm; (c) alarm that changes during the described change alarm after during the described normal alarm.
7, according to the buzzer driving method of the described micro-wave oven of claim 6, it is characterized in that: the described change alarm that takes place from above-mentioned steps (c) is the reverberation type that decays gradually at latter half of its level.
8, according to the buzzer drive unit of the described micro-wave oven of claim 6, it is characterized in that: the described normal alarm that takes place from above-mentioned steps (b) has the various tones corresponding to each telegraph key of being selected for use by the end user.
9, according to the buzzer drive unit of the described micro-wave oven of claim 6, it is characterized in that: the described normal alarm that takes place from above-mentioned steps (6) is the melody of being scheduled to.
10, according to the buzzer drive unit of the described micro-wave oven of claim 8, it is characterized in that: whenever state alarm and have corresponding at least one tone in the octave of each telegraph key of selecting for use by the end user.
11, according to the buzzer drive unit of the described micro-wave oven of claim 9, it is characterized in that: the step that melody takes place comprises the steps:
(a) tone data is taken out in retrieval;
(b) take out music symbol corresponding to described tone data retrieval, such as minim, 1/4th notes, 1/8th notes, ten sixth notes;
(c) send described predetermined melody corresponding to retrieve the described tone data that takes out and described music symbol in above-mentioned steps (a) with (b).
CN94116500A 1993-09-28 1994-09-28 A buzzer driving apparatus of a microwave oven and the method thereof Pending CN1105813A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019930020061A KR100239126B1 (en) 1993-09-28 1993-09-28 Alarm apparatus and method of microwave oven
KRP93-20061 1993-09-28

Publications (1)

Publication Number Publication Date
CN1105813A true CN1105813A (en) 1995-08-02

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Application Number Title Priority Date Filing Date
CN94116500A Pending CN1105813A (en) 1993-09-28 1994-09-28 A buzzer driving apparatus of a microwave oven and the method thereof

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KR (1) KR100239126B1 (en)
CN (1) CN1105813A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107680573A (en) * 2017-10-30 2018-02-09 联合汽车电子有限公司 Buzzer drive circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107680573A (en) * 2017-10-30 2018-02-09 联合汽车电子有限公司 Buzzer drive circuit
CN107680573B (en) * 2017-10-30 2024-04-16 联合汽车电子有限公司 Buzzer driving circuit

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Publication number Publication date
KR100239126B1 (en) 2000-03-02
KR950009113A (en) 1995-04-21

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