CN2754132Y - Toaster control circuit - Google Patents
Toaster control circuit Download PDFInfo
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- CN2754132Y CN2754132Y CN 200420094314 CN200420094314U CN2754132Y CN 2754132 Y CN2754132 Y CN 2754132Y CN 200420094314 CN200420094314 CN 200420094314 CN 200420094314 U CN200420094314 U CN 200420094314U CN 2754132 Y CN2754132 Y CN 2754132Y
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Abstract
The utility model discloses a toaster control circuit which needs to solve a technical problem that bread is automatically recognized, and the overall process for baking the bread is controlled. The utility model uses a technical scheme that the toaster control circuit comprises a direct current power supply and a CPU which are sequentially connected, wherein the CPU is respectively connected with an infrared induction circuit, an electric machine driving circuit, a sliding carriage positioning circuit, a display circuit, a backlight source circuit, an alarm circuit, a relay circuit, a reset circuit, and a clock circuit; the CPU is used for controlling the automatic recognition of the bread and judging baking time and temperature and alarming, and simultaneously, the CPU can evenly and accurately judge the bread which is larger than 20g and is arranged in any groove. The utility model has the advantages of simple operation, convenience and safety. The utility model is suitable for families and shops.
Description
Technical field
The utility model relates to the control circuit of a kind of control circuit, particularly a kind of toaster.
Background technology
Present toaster all is to adopt to press down flap hand artificially when toasting bread, the sliding pallet frame is descended bread is sent into roasted room, carriage drops to a back energized and begins to toast bread, no matter whether this control mode have bread in the toaster, as long as press down flap hand, the sliding pallet frame is descended and begin and heat; The toaster of prior art adopts thermistor to realize the Compensation Regulation of bread baking in the process of baking bread, because the error of other components and parts can cause the undesirable of compensation effect in the resistance error of thermistor itself and the electronic timing circuit.
Summary of the invention
The purpose of this utility model provides a kind of control circuit of toaster, and the technical matters that solve is to discern bread automatically, and the overall process of baking bread is controlled.
The utility model is by the following technical solutions: a kind of control circuit of toaster, comprise the direct supply and the CPU that are linked in sequence, CPU connects infrared induction circuit, motor-drive circuit, sliding pallet frame positioning circuit, display circuit, backlight circuit, warning circuit, relay circuit, reset circuit and clock circuit respectively.
The infrared emission tube of the utility model infrared induction circuit is serially connected between direct supply first positive pole and the 20 resistance, the 20 resistance other end is connected with the collector of the 7th triode, the base stage of the 7th triode links to each other with the 10th pin of CPU through the 18 resistance, the grounded emitter of the 7th triode, infrared receiver tube is through the 15 resistance and second anodal connection of direct supply, the negative pole of infrared receiver tube links to each other with the base stage of the 16 resistance with the 4th triode, the collector of the 4th triode is through the 14 resistance and second anodal connection of direct supply, link to each other the grounded emitter of the 4th triode with the 9th pin of CPU through the 17 resistance.
Be serially connected with bidirectional triode thyristor in the motor current supply circuit of the utility model motor-drive circuit, its control end is connected through the emitter of the 9th resistance with the 3rd triode, its control end is also through the tenth resistance eutral grounding, the collector of the 3rd triode is through the 8th resistance and first anodal connection of direct supply, and the base stage of the 3rd triode is connected with the 7th pin of CPU through the 6th resistance.
The upper limit position switch one end ground connection of the utility model sliding pallet frame positioning circuit, the other end is connected with the 11st pin of CPU with the 19 resistance through the 21 resistance, connect direct supply second positive pole through the 22 resistance between the 21 resistance and the 19 resistance, upper limit position switch and the 21 resistance two ends are parallel with lower position switch.
Display circuit of the present utility model comprises LCD, function selecting button and grade plus-minus button, 1 pin of LCD is connected with 12 pin of button " STOP/START " end and CPU, 2 pin of LCD are connected with 13 pin of button "-" end and CPU, 3 pin of LCD are connected with 14 pin of button "+" end and CPU, 6 pin of LCD are connected with 17 pin of button " BAGEL " end and CPU, 7 pin of LCD are connected with 18 pin of button " RE " end and CPU, 8 pin of LCD are connected with 19 pin of button " DE " end and CPU, 4 pin of LCD and an end of the 23 resistance, one end of the 24 resistance and 15 pin of CPU are connected, 5 pin of LCD and an end of the 25 resistance, one end of the 26 resistance and 16 pin of CPU are connected, the other end of the 23 resistance and the other end of the 25 resistance and second anodal connection of direct supply, the other end of the 24 resistance and the other end ground connection of the 26 resistance, the other end of all buttons is through the 27 resistance eutral grounding.
The negative pole of a termination the 7th electric capacity that the high-frequency transformer of the utility model backlight circuit is elementary, the emitter of another termination the 6th triode, the base stage of the 6th triode is through the 13 resistance, the 12 resistance connects the emitter of the 5th triode, the collector of the 6th triode connects the emitter of the 5th triode, be parallel with the 8th electric capacity between the collector of the 6th triode and the base stage, the positive pole of the 7th electric capacity is connected between the 13 resistance and the 12 resistance, the collector of the 5th triode connects direct supply second positive pole, and base stage is connected with the 5th pin of CPU through the 11 resistance.
The base stage of first triode of the utility model warning circuit links to each other with the 8th pin of CPU through the 4th resistance, grounded emitter, and collector connects an end of hummer, and the other end of hummer is through the 3rd resistance and first anodal connection of direct supply.
One termination direct supply, first positive pole of the relay of the utility model relay circuit, the collector of other end termination second triode of relay, two ends reverse parallel connection the 5th diode of relay, the grounded emitter of second triode, base stage is connected with the 6th pin of CPU through the 5th resistance; Second resistance, one termination direct supply, second positive pole of reset circuit, the 4th pin of another termination CPU, 4 pins are also through the 5th electrochemical capacitor ground connection, and the ceramic resonator of clock circuit and the 7th resistance are connected in parallel between the 2nd pin and the 3rd pin of CPU.
Direct supply of the present utility model comprises transformer, bridge rectifier circuit, the filtering circuit that is linked in sequence; Direct supply first positive pole is output as 12V, and direct supply second positive pole is output as 5V.
CPU of the present utility model selects S3C9495 for use, and LCD selects I4435F for use, and first triode selects 9014 for use, second triode selects for use 9014, the three triodes to select for use 9013, the four triodes to select 9014 for use, the 5th triode selects 9014 for use, the 6th triode selects for use 9014, the seven triodes to select for use 9014, the ten eight resistance to select 1.5k for use, the 17 resistance is selected 5.6K for use, the 14 resistance is selected 10k for use, and the 15 resistance is selected 100 Ω for use, and the 16 resistance is selected 330 Ω for use, the 20 resistance is selected 1k for use, high-frequency transformer is selected EE10 for use, and the 7th electric capacity is selected 4.7uF/10v for use, and the 8th electric capacity selects 104 for use, the 11 resistance is selected 1.5k for use, the 12 resistance is selected 10k for use, and the 13 resistance is selected 27 Ω for use, and the bidirectional triode thyristor rectifier is selected 97A6 for use, the 6th resistance is selected 560 Ω for use, the 8th resistance is selected 2.2K for use, and the 9th resistance is selected 560 Ω for use, and the tenth resistance is selected 240 Ω for use, the 5th diode selects 4007 for use, the 5th resistance is selected 1.5K for use, and the 3rd resistance is selected 24 Ω for use, and the 4th resistance is selected 1.5K for use.
The utility model compared with prior art, with the automatic identification of CPU control bread, judge stoving time and temperature, and report to the police, simultaneously no matter place any groove all can judge to have simple, convenient, safe and reliable advantage exactly for bread greater than 20g.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.As shown in Figure 1, the control circuit of toaster of the present utility model comprises CPU, CPU connects infrared induction circuit, motor-drive circuit, sliding pallet frame positioning circuit, display circuit, backlight circuit, warning circuit, relay circuit, reset circuit and clock circuit respectively, and be the direct supply of CPU and foregoing circuit common-battery, direct supply comprises first transformer, bridge rectifier circuit, the filtering circuit that is linked in sequence, the direct supply first anodal VCC is output as 12V, and the direct supply second anodal VDD is output as 5V.
The infrared emission tube LED2 of infrared induction circuit is serially connected between direct supply first anodal VCC and the 20 resistance R 20, the 20 resistance R 20 other ends are connected with the collector of the 7th triode Q7, the base stage of the 7th triode Q7 links to each other with the 10th pin of CPU through the 18 resistance R 18, the grounded emitter of the 7th triode Q7, infrared receiver tube LED1 is connected with the direct supply second anodal VDD through the 15 resistance R 15, the negative pole of infrared receiver tube LED1 links to each other with the Q4 base stage of the 16 resistance R 16 and the 4th triode, the collector of the 4th triode Q4 is connected with the direct supply second anodal VDD through the 14 resistance R 14, link to each other the grounded emitter of the 4th triode Q4 with the 9th pin of CPU through the 17 resistance R 17.
Be serially connected with bidirectional triode thyristor TRIAC in the motor current supply circuit of motor-drive circuit, its control end is connected with the emitter of the 3rd triode Q3 through the 9th resistance R 9, its control end is also through the tenth resistance R 10 ground connection, the collector of the 3rd triode Q3 is connected with the direct supply first anodal VCC through the 8th resistance R 8, and the base stage of the 3rd triode Q3 is connected with the 7th pin of CPU through the 6th resistance R 6.
The upper limit position switch K1 one end ground connection of sliding pallet frame positioning circuit, the other end is connected with the 11st pin of CPU with the 19 resistance R 19 through the 21 resistance R 21, meet the direct supply second anodal VDD through the 22 resistance R 22 between the 21 resistance R 21 and the 19 resistance R 19, upper limit position switch K1 and the 21 resistance R 21 two ends are parallel with lower position switch K2.
Display circuit comprises LCD, function selecting button and grade plus-minus button, 1 pin of LCD is connected with 12 pin of button " STOP/START " end and CPU, 2 pin of LCD are connected with 13 pin of button " " end and CPU, 3 pin of LCD are connected with 14 pin of button "+" end and CPU, 6 pin of LCD are connected with 17 pin of button " BAGEL " end and CPU, 7 pin of LCD are connected with 18 pin of button " RE " end and CPU, 8 pin of LCD are connected with 19 pin of button " DE " end and CPU, 4 pin of LCD and an end of the 23 resistance R 23, one end of the 24 R24 resistance and 15 pin of CPU are connected, 5 pin of LCD and an end of the 25 resistance R 25, one end of the 26 resistance R 26 and 16 pin of CPU are connected, the other end of the 23 resistance R 23 is connected with the direct supply second anodal VDD with the other end of the 25 resistance R 25, the other end ground connection of the other end of the 24 resistance R 24 and the 26 resistance R 26, the other end of all buttons is through the 27 resistance R 27 ground connection.
The negative pole of a termination the 7th capacitor C 7 that the high-frequency transformer T2 of backlight circuit is elementary, the emitter of another termination the 6th triode Q6, the base stage of the 6th triode Q6 is through the 13 resistance R 13, the 12 resistance R 12 connects the emitter of the 5th triode Q5, the collector of the 6th triode Q6 connects the emitter of the 5th triode Q5, be parallel with the 8th capacitor C 8 between the collector of the 6th triode Q6 and the base stage, the positive pole of the 7th capacitor C 7 is connected between the 13 resistance R 13 and the 12 resistance R 12, the collector of the 5th triode Q5 meets the direct supply second anodal VDD, and base stage is connected with the 5th pin of CPU through the 11 resistance R 11.
The base stage of the first triode Q1 of warning circuit links to each other with the 8th pin of CPU through the 4th resistance R 4, grounded emitter, and collector connects the end of hummer SPEAKER, and the other end of hummer is connected with the direct supply first anodal VCC through the 3rd resistance R 3.
One termination direct supply, the first anodal VCC of the relay J 1 of relay circuit, the collector of the other end termination second triode Q2 of relay J 1, two ends reverse parallel connection the 5th diode D5 of relay J 1, the grounded emitter of the second triode Q2, base stage is connected with the 6th pin of CPU through the 5th resistance R 5; Second resistance R, 2 one termination direct supplys, the second anodal VDD of reset circuit, the 4th pin of another termination CPU, 4 pins are also through the 5th electrochemical capacitor C5 ground connection, and the ceramic resonator of clock circuit and the 7th resistance R 7 are connected in parallel between the 2nd pin and the 3rd pin of CPU.
The infrared induction circuit detects having or not of bread automatically, and CPU automatically sends bread into and send roasted room at judgement rear drive motor; Can make toaster stop baking or send into bread by the START/STOP key and begin baking in the bread baking groove; CPU control whole bake process heat time heating time, make-up time, heat insulation function, prevent that bread from blocking and overtemperature cuts off the power supply automatically.
CPU of the present utility model selects S3C9495 for use, LCD selects 14435F for use, the first triode Q1 selects 9014 for use, the second triode Q2 selects 9014 for use, the 3rd triode Q3 selects 9013 for use, the 4th triode Q4 selects 9014 for use, the 5th triode Q5 selects 9014 for use, the 6th triode Q6 selects 9014 for use, the 7th triode Q7 selects 9014 for use, the 18 resistance R 18 is selected 1.5k for use, the 17 resistance R 17 is selected 5.6K for use, the 14 resistance R 14 is selected 10k for use, and the 15 resistance R 15 is selected 100 Ω for use, and the 16 resistance R 16 is selected 330 Ω for use, the 20 resistance is selected 1k for use, high-frequency transformer T2 selects EE10 for use, and the 7th capacitor C 7 is selected 4.7uF/10v for use, and the 8th capacitor C 8 selects 104 for use, the 11 resistance R 11 is selected 1.5k for use, the 12 resistance R 12 is selected 10k for use, and the 13 resistance R 13 is selected 27 Ω for use, and bidirectional triode thyristor is selected TRIAC97A6 for use, the 6th resistance R 6 is selected 560 Ω for use, the 8th resistance R 8 is selected 2.2K for use, and the 9th resistance R 9 is selected 560 Ω for use, and the tenth resistance R 10 is selected 240 Ω for use, the 5th diode D5 selects 4007 for use, the 5th resistance R 5 is selected 1.5K for use, and the 3rd resistance R 3 is selected 24 Ω for use, and the 4th resistance R 4 is selected 1.5K for use.
The course of work of the present utility model is: the alternating current 220V power supply provides galvanic current to press by the first transformer T1 step-down after bridge rectifier, first capacitor C, 1 to the 4th capacitor C 4 and three-terminal voltage-stabilizing pipe 7805 are formed voltage stabilizing, filtering circuit.CPU adopts the S3C9454 of Korea S Samsung, and directly the P0 mouth with CPU drives liquid crystal display displays.EL is luminous for backlight drive circuit driven for emitting lights sheet, and when continuous 5 minutes inoperation toasters, CPU quit work backlight drive circuit, extinguishes backlight.The sliding pallet frame respectively when upper and lower spacing place the 21 resistance R 21 different with the partial pressure value of the 22 resistance R 22, the 11st pin of CPU detects level and changes through A/D, the binary value of CPU after according to the conversion position, sliding pallet frame ground that can judge rightly out.
The infrared induction circuit has or not infrared ray to judge having or not of bread by detecting between infrared emission tube LED2 and the infrared receiver tube LED1; After the toaster energising, CPU judges whether the upper limit position switch K1 of sliding pallet frame is closed, if do not have, CPU triggers controllable silicon TRIAC and drives the synchronous motor running after the 3rd triode Q3 isolates, make the sliding pallet frame run to the top, sliding pallet frame upper limit position switch K1 closure makes the motor stall.When putting into the sliding pallet frame greater than the bread of 20g, the sliding pallet frame is because gravity goes downwards to infrared receiving lines plate place, and infrared radiation receiving circuit receives signal.CPU isolates the back through the 3rd triode Q3 and triggers controllable silicon TRIAC and drive the synchronous motor running, and motor drives sliding pallet frame goes downwards to the bottom, makes lower position switch K2 closure, and CPU detects after the K2 closure signal no longer that driving motor turns round.CPU drives relay J 1 closure through the second triode Q2, the heating of control heating wire.Stop baking when heating normal termination or pressing " STOP/START " key, CPU triggers controllable silicon TRIAC after the 3rd triode Q3 isolates, the driving motor running.Motor drives sliding pallet frame is up to the top, and sliding pallet frame upper limit position switch K1 closure shuts down motor.CPU drives hummer buzzing 5 through the first triode Q1 simultaneously.During heating, compulsory withdrawal heating artificially, but not buzzing of hummer.
Function key for setting this function, is pressed Shi Zewei more next time and is cancelled this function when pressing; Set certain function, LCD panel has corresponding characters to show.In bake process, function setting is invalid, but can adjust the baking grade; Press " STOP/START " key, can when the infrared induction failure of apparatus, start heating steps on the one hand, can when heating, finish this baking on the other hand.
The bread thermal circuit is made up of CPU, motor drive circuit, sliding pallet frame positioning circuit, buzzer circuit and relay circuit.In the certain hour after bread is sent roasted room, if do not take out bread, toaster will enter keeping warm mode automatically, and this cool time is by the decision of baking gear.During the bread insulation, the sliding pallet frame is steadily sent bread into roasted room, and beginning is heating intermittently, continues 5 minutes altogether.With buzzing one, can select " START/STOP " key to stop insulation every one minute hummer around here.Toaster finishes insulation after 5 minutes, and the sliding pallet frame is steadily sent roasted room with bread, and after this hummer will no longer enter keeping warm mode with the buzzing four tones of standard Chinese pronunciation.
Prevent that bread from blocking circuit and the automatic power-off protecting circuit of overtemperature is made up of CPU, motor drive circuit, sliding pallet frame positioning circuit, buzzer circuit and relay circuit.The sliding pallet frame is when upstream or downstream, if be stuck, motor shuts down, and sound and light alarm, the hummer buzzing, and the backlight of LCD panel is lighted at interval simultaneously, waits for and takes out bread artificially.Press " STOP/START " key after taking out bread, the sliding pallet frame will be up to the top automatically under the control of software, and stop to report to the police.Long and when overtemperature occurring, be considered as overtemperature when surpassing 320 seconds as heat time heating time when heat time heating time, CPU makes the outage of whole loop by the action of relay, causes toaster to quit work automatically.
After the utility model connected civil power, through after step-down, rectification and the filtering, the first anodal VCC was stable 12V DC voltage, and the second anodal VDD is stable 5V DC voltage.From the moment of connecting with the mains, the voltage at the 5th capacitor C 5 two ends is raised to high level at leisure from low level.Because the 4th pin of CPU is input as low level, so action that the CPU executive system resets, make total system be in the state of default value, just: LCD panel LCD shows the grade character of acquiescence, the utility model is the 3rd grade, all button does not have input, hummer SPEAKER does not ring, relay J 1 is not closed, backlight EL is luminous, motor MD does not turn round, upper limit position switch K1 should be closed, if it is not closed, CPU can drive motor earlier rises the sliding pallet frame, thereby makes the K1 closure, whether infra-red ray detection device continuously detects has bread to put in the toaster.When heating wire is not switched on heating, can change the functional mode and the grade of heating; When heating wire energising heating, can only change the grade of heating.For function key, what take is that unperturbed switches: if press specifically is to select this function, and pressing so once more is exactly to cancel this function; If press specifically is this function of cancellation, and pressing so once more is exactly to select this function.Increase the minimizing button for grade, whenever by once increasing or reducing button, just make the increase of heating grade or reduce one-level, become 9 grades or 1 grade up to grade, heat grade and no longer change this moment.
When putting into the sliding pallet frame greater than the bread of 20g, sliding pallet frame baffle plate is because the gravity of bread goes downwards to infrared receiving lines plate place.The infrared ray that infrared transmitting tube LED2 sends reflexes to infrared receiving tube LED1 through sliding pallet frame baffle plate, the infrared ray receiving lines receives signal, thereby make infrared receiving tube LED1 conducting, trigger the 4th triode Q4 conducting, make the incoming level of the 9th pin of CPU become low level by high level.Because the level of the 9th pin is by high step-down, the built-in function of CPU will make the level of CPU the 7th pin become high level by low level, make the 3rd triode Q3 conducting, cause controllable silicon TRIAC conducting, the motor entry into service.It is descending that the running of motor drives the sliding pallet frame, up to making lower position switch K2 closure.CPU carries out the A/D conversion to the partial pressure value of the 11st pin, just can judge which limit switch closure according to the numerical value CPU after the conversion.CPU judges after the lower position switch K2 closure, and by the built-in function of CPU, the level of CPU the 7th pin becomes low level by high level, has stopped the running of motor, and the sliding pallet frame has also just been located.At this moment, CPU can become high level to the level of the 6th pin by low level, causes the second triode Q2 conducting.Since the conducting of Q2, the normal open switch closure of relay J 1, the heating wire heating power, baking bread begins.
To be CPU draw according at present selected type of heating, heating grade and with time interval of last time heating method by mathematical computations stoving time.When switching on the stoving time that equals to set heat time heating time, the heating normal termination; Whenever can forcing artificially to finish to heat of heating process by by " STOP/START " key.When baking finished, the 8th pin of CPU became high level by low level, drove hummer, and after the buzzing 5, the 8th pin of CPU becomes low level by high level, no longer drives hummer.After buzzing finished, the 7th pin of CPU became high level by low level, the driving motor running, and motor drives sliding pallet frame is up, and bread is sent roasted room, and up to upper limit position switch K1 closure, motor is out of service.Baking bread finishes.
Claims (10)
1, a kind of control circuit of toaster, it is characterized in that: comprise the direct supply and the CPU that are linked in sequence, CPU connects infrared induction circuit, motor-drive circuit, sliding pallet frame positioning circuit, display circuit, backlight circuit, warning circuit, relay circuit, reset circuit and clock circuit respectively.
2, the control circuit of toaster according to claim 1, it is characterized in that: the infrared emission tube of described infrared induction circuit is serially connected between direct supply first positive pole and the 20 resistance, the 20 resistance other end is connected with the collector of the 7th triode, the base stage of the 7th triode links to each other with the 10th pin of CPU through the 18 resistance, the grounded emitter of the 7th triode, infrared receiver tube is through the 15 resistance and second anodal connection of direct supply, the negative pole of infrared receiver tube links to each other with the base stage of the 16 resistance with the 4th triode, the collector of the 4th triode is through the 14 resistance and second anodal connection of direct supply, link to each other the grounded emitter of the 4th triode with the 9th pin of CPU through the 17 resistance.
3, the control circuit of toaster according to claim 2, it is characterized in that: be serially connected with bidirectional triode thyristor in the motor current supply circuit of described motor-drive circuit, its control end is connected through the emitter of the 9th resistance with the 3rd triode, its control end is also through the tenth resistance eutral grounding, the collector of the 3rd triode is through the 8th resistance and first anodal connection of direct supply, and the base stage of the 3rd triode is connected with the 7th pin of CPU through the 6th resistance.
4, the control circuit of toaster according to claim 3, it is characterized in that: the upper limit position switch one end ground connection of described sliding pallet frame positioning circuit, the other end is connected with the 11st pin of CPU with the 19 resistance through the 21 resistance, connect direct supply second positive pole through the 22 resistance between the 21 resistance and the 19 resistance, upper limit position switch and the 21 resistance two ends are parallel with lower position switch.
5, the control circuit of toaster according to claim 4, it is characterized in that: described display circuit comprises LCD, function selecting button and grade plus-minus button, 1 pin of LCD is connected with 12 pin of button " STOP/START " end and CPU, 2 pin of LCD are connected with 13 pin of button "-" end and CPU, 3 pin of LCD are connected with 14 pin of button "+" end and CPU, 6 pin of LCD are connected with 17 pin of button " BAGEL " end and CPU, 7 pin of LCD are connected with 18 pin of button " RE " end and CPU, 8 pin of LCD are connected with 19 pin of button " DE " end and CPU, 4 pin of LCD and an end of the 23 resistance, one end of the 24 resistance and 15 pin of CPU are connected, 5 pin of LCD and an end of the 25 resistance, one end of the 26 resistance and 16 pin of CPU are connected, the other end of the 23 resistance and the other end of the 25 resistance and second anodal connection of direct supply, the other end of the 24 resistance and the other end ground connection of the 26 resistance, the other end of all buttons is through the 27 resistance eutral grounding.
6, the control circuit of toaster according to claim 5, it is characterized in that: the negative pole of a termination the 7th electric capacity that the high-frequency transformer of described backlight circuit is elementary, the emitter of another termination the 6th triode, the base stage of the 6th triode is through the 13 resistance, the 12 resistance connects the emitter of the 5th triode, the collector of the 6th triode connects the emitter of the 5th triode, be parallel with the 8th electric capacity between the collector of the 6th triode and the base stage, the positive pole of the 7th electric capacity is connected between the 13 resistance and the 12 resistance, the collector of the 5th triode connects direct supply second positive pole, and base stage is connected with the 5th pin of CPU through the 11 resistance.
7, the control circuit of toaster according to claim 6, it is characterized in that: the base stage of first triode of described warning circuit links to each other with the 8th pin of CPU through the 4th resistance, grounded emitter, collector connects an end of hummer, and the other end of hummer is through the 3rd resistance and first anodal connection of direct supply.
8, the control circuit of toaster according to claim 7, it is characterized in that: a termination direct supply first positive pole of the relay of described relay circuit, the collector of other end termination second triode of relay, two ends reverse parallel connection the 5th diode of relay, the grounded emitter of second triode, base stage is connected with the 6th pin of CPU through the 5th resistance; Second resistance, one termination direct supply, second positive pole of reset circuit, the 4th pin of another termination CPU, 4 pins are also through the 5th electrochemical capacitor ground connection, and the ceramic resonator of clock circuit and the 7th resistance are connected in parallel between the 2nd pin and the 3rd pin of CPU.
9, the control circuit of toaster according to claim 8 is characterized in that: described direct supply comprises transformer, bridge rectifier circuit, the filtering circuit that is linked in sequence; Direct supply first positive pole is output as 12V, and direct supply second positive pole is output as 5V.
10, the control circuit of toaster according to claim 9, it is characterized in that: described CPU selects S3C9495 for use, LCD selects I4435F for use, first triode selects 9014 for use, second triode selects 9014 for use, the 3rd triode selects 9013 for use, the 4th triode selects 9014 for use, the 5th triode selects 9014 for use, the 6th triode selects 9014 for use, the 7th triode selects 9014 for use, the 18 resistance is selected 1.5k for use, and the 17 resistance is selected 5.6K for use, and the 14 resistance is selected 10k for use, the 15 resistance is selected 100 Ω for use, the 16 resistance is selected 330 Ω for use, and the 20 resistance is selected 1k for use, and high-frequency transformer is selected EE10 for use, the 7th electric capacity is selected 4.7uF/10v for use, the 8th electric capacity selects for use 104, the ten one resistance to select 1.5k for use, and the 12 resistance is selected 10k for use, the 13 resistance is selected 27 Ω for use, the bidirectional triode thyristor rectifier is selected 97A6 for use, and the 6th resistance is selected 560 Ω for use, and the 8th resistance is selected 2.2K for use, the 9th resistance is selected 560 Ω for use, the tenth resistance is selected 240 Ω for use, and the 5th diode selects for use 4007, the five resistance to select 1.5K for use, the 3rd resistance is selected 24 Ω for use, and the 4th resistance is selected 1.5K for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420094314 CN2754132Y (en) | 2004-10-21 | 2004-10-21 | Toaster control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420094314 CN2754132Y (en) | 2004-10-21 | 2004-10-21 | Toaster control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2754132Y true CN2754132Y (en) | 2006-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420094314 Expired - Fee Related CN2754132Y (en) | 2004-10-21 | 2004-10-21 | Toaster control circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508507A (en) * | 2011-12-30 | 2012-06-20 | 晶辉科技（深圳）有限公司 | Control method for sliced bread toasting time memory of toaster |
| CN105241264A (en) * | 2015-11-09 | 2016-01-13 | 四川华索自动化信息工程有限公司 | Low-pass filter voltage-stabilization resonance type temperature alarm system for carbon roasting furnace |
| CN105258522A (en) * | 2015-11-09 | 2016-01-20 | 四川华索自动化信息工程有限公司 | Three-terminal voltage and current stabilizing shaping type temperature alarm system for carbon calcinatory |
| CN105996814A (en) * | 2016-07-14 | 2016-10-12 | 江门市嘉威电器实业有限公司 | Heat preserving toaster and control method thereof |
| CN110353526A (en) * | 2018-03-26 | 2019-10-22 | 广东美的生活电器制造有限公司 | Toaster |
-
2004
- 2004-10-21 CN CN 200420094314 patent/CN2754132Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508507A (en) * | 2011-12-30 | 2012-06-20 | 晶辉科技（深圳）有限公司 | Control method for sliced bread toasting time memory of toaster |
| CN105241264A (en) * | 2015-11-09 | 2016-01-13 | 四川华索自动化信息工程有限公司 | Low-pass filter voltage-stabilization resonance type temperature alarm system for carbon roasting furnace |
| CN105258522A (en) * | 2015-11-09 | 2016-01-20 | 四川华索自动化信息工程有限公司 | Three-terminal voltage and current stabilizing shaping type temperature alarm system for carbon calcinatory |
| CN105996814A (en) * | 2016-07-14 | 2016-10-12 | 江门市嘉威电器实业有限公司 | Heat preserving toaster and control method thereof |
| CN110353526A (en) * | 2018-03-26 | 2019-10-22 | 广东美的生活电器制造有限公司 | Toaster |
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