CN1738203A - Timing circuit of toaster and its control method - Google Patents
Timing circuit of toaster and its control method Download PDFInfo
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- CN1738203A CN1738203A CN 200510035876 CN200510035876A CN1738203A CN 1738203 A CN1738203 A CN 1738203A CN 200510035876 CN200510035876 CN 200510035876 CN 200510035876 A CN200510035876 A CN 200510035876A CN 1738203 A CN1738203 A CN 1738203A
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Abstract
The invention discloses a timing circuit of toaster and its control method, which can solve the problem that the toaster cannot cut the heating power source normally. The invention comprises a rectification filter circuit in series, a main timing circuit and a coil drive circuit while a added timing circuit is amounted in parallel on the two ends of main timing circuit. The control method comprises following steps: the main and auxiliary timing circuits start to timing at the same time; the main and auxiliary circuits output signals when the preset time is reached; the armature iron coil drive circuit outputs circuit breaking signal; the armature iron coil has circuit breaking and the carriage is lifted. Compared to present technique, when the timing unit of main timing circuit has been disabled, the auxiliary timing circuit will output signal, then the coil drive circuit outputs signal, at last the armature iron coil has circuit breaking and the carriage is lifted. So it can increase the safety to protect the people and the wealth better when the cost is increased little.
Description
Technical field
The present invention relates to a kind of timing circuit and control method thereof of control circuit and control method thereof, particularly a kind of toaster of toaster.
Background technology
Present toaster by useful signal of timing circuit output heating time, makes the armature coil outage, thereby cuts off heating power supply when arrive in heating time.In the use because the quality problems of components and parts itself regularly, make the heating time timing circuit fail to export a useful signal that makes the armature coil outage, cause toaster in the phenomenon that arrive in heating time and the continuation of can not cutting off the electricity supply is heated, thereby cause the generation of some accidents.
Summary of the invention
The timing circuit and the control method thereof that the purpose of this invention is to provide a kind of toaster, the technical problem that solves is under the situation that toaster can not the normal cutoff power supply stops to heat, output signal makes the armature coil outage, cuts off heating power supply, avoids the generation of contingency.
The present invention is by the following technical solutions: a kind of timing circuit of toaster, comprise the current rectifying and wave filtering circuit that is linked in sequence, main timing circuit and coil driver, and described main timing circuit two ends are parallel with additional timing circuit.
Additional timing circuit of the present invention adopts integrated circuit.
Integrated circuit employing 4060 of the present invention, PT2511, CMS12530, CMS12510,555 or 555 and 4060 are in series.
Coil driver of the present invention comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, collector electrode connects the emitter of the 21 triode, and the collector electrode of the 21 triode connects armature coil.
Coil driver of the present invention comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, collector electrode is connected another termination power of the emitter of the 21 triode, the negative pole of the 21 diode and armature coil with the collector electrode of the 21 triode, the positive pole of the 21 diode, an end of armature coil.
Coil driver of the present invention comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, collector electrode connects the collector electrode of the 21 triode, and the emitter of the 21 triode connects armature coil.
Coil driver of the present invention comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, collector electrode is connected another termination power of the collector electrode of the 21 triode, the negative pole of the 21 diode and armature coil with the emitter of the 21 triode, the positive pole of the 21 diode, an end of armature coil.
Coil driver of the present invention comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter connects the emitter of the 21 triode, and the collector electrode of the 21 triode connects armature coil.
Coil driver of the present invention comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter is connected another termination power of the collector electrode of the 21 triode, the negative pole of the 21 diode and armature coil with the emitter of the 21 triode, the positive pole of the 21 diode, an end of armature coil.
Coil driver of the present invention comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter connects the collector electrode of the 21 triode, and the emitter of the 21 triode connects armature coil.
Coil driver of the present invention comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter is connected with the collector electrode of the 21 triode, the positive pole of the 21 diode, an end of armature coil, and the emitter of the 21 triode, the negative pole and the armature coil of the 21 diode connect power supply.
A kind of timing circuit control method of toaster may further comprise the steps: one, press when prohibiting hand, main timing circuit and additional timing circuit pick up counting simultaneously; When two, reaching setting-up time, main timing circuit and additional timing circuit are to armature coil drive circuit output signal; Three, the armature coil drive circuit sends power-off signal; Four, armature coil outage, balladeur train lifts.
The signal of the additional timing circuit output of the present invention is later than the signal of main timing circuit output.
When balladeur train of the present invention lifts, turn-off the baking power supply, baking finishes.
The present invention compared with prior art, main timing circuit two ends additional timing circuit in parallel, when the timing components and parts of main timing circuit break down, output signal to coil driver by additional timing circuit, coil driver sends signal, the armature coil outage, and balladeur train lifts, under the very little situation of cost increase, increase safety in utilization greatly, ensured user's personal safety and property safety.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the embodiment of the invention.
Fig. 2 is embodiment of the invention current rectifying and wave filtering circuit () schematic diagram.
Fig. 3 is embodiment of the invention current rectifying and wave filtering circuit (a two) schematic diagram.
Fig. 4 is embodiment of the invention current rectifying and wave filtering circuit (a three) schematic diagram.
Fig. 5 is embodiment of the invention current rectifying and wave filtering circuit (a four) schematic diagram.
Fig. 6 is embodiment of the invention current rectifying and wave filtering circuit (a five) schematic diagram.
Fig. 7 is embodiment of the invention current rectifying and wave filtering circuit (a six) schematic diagram.
Fig. 8 is embodiment of the invention current rectifying and wave filtering circuit (a seven) schematic diagram.
Fig. 9 is embodiment of the invention current rectifying and wave filtering circuit (an eight) schematic diagram.
Figure 10 is embodiment of the invention current rectifying and wave filtering circuit (a nine) schematic diagram.
Figure 11 is embodiment of the invention current rectifying and wave filtering circuit (a ten) schematic diagram.
Figure 12 is additional timing circuit () schematic diagram of the embodiment of the invention.
Figure 13 is additional timing circuit (two) schematic diagram of the embodiment of the invention.
Figure 14 is additional timing circuit (three) schematic diagram of the embodiment of the invention.
Figure 15 is additional timing circuit (four) schematic diagram of the embodiment of the invention.
Figure 16 is additional timing circuit (five) schematic diagram of the embodiment of the invention.
Figure 17 is additional timing circuit (six) schematic diagram of the embodiment of the invention.
Figure 18 is embodiment of the invention coil driver () schematic diagram.
Figure 19 is embodiment of the invention coil driver (a two) schematic diagram.
Figure 20 is embodiment of the invention coil driver (a three) schematic diagram.
Figure 21 is embodiment of the invention coil driver (a four) schematic diagram.
Figure 22 is embodiment of the invention coil driver (a five) schematic diagram.
Figure 23 is embodiment of the invention coil driver (a six) schematic diagram.
Figure 24 is embodiment of the invention coil driver (a seven) schematic diagram.
Figure 25 is embodiment of the invention coil driver (an eight) schematic diagram.
Figure 26 is an embodiment of the invention circuit theory diagrams.
Figure 27 is the timing circuit control method embodiment flow chart of toaster of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.As shown in Figure 1, the timing circuit of toaster of the present invention comprises rectification filtering voltage stabilizing circuit, timing circuit and the coil driver that is linked in sequence, and timing circuit comprises main timing circuit and the additional timing circuit that is in parallel.After alternating current process full-wave rectification bridge or the halfwave rectifier, export unstable DC power supply, unsettled DC power supply obtains the galvanic current source after capacitor filtering and voltage-stabilizing device voltage stabilizing.The power supply of main timing circuit and additional timing circuit is given in the galvanic current source simultaneously.Timing circuit is made up of counting electronic device and oscillating electron device.The pulse that the oscillating circuit output frequency is adjustable, the frequency of pulse is by the parameter decision of oscillating electron device.The counting electronic device is counted the oscillating impulse that oscillating circuit produces, and when counting reaches the setting number, has just reached setting-up time, the corresponding pin of counting electronic device can export one with opposite before level signal.The drive circuit of additional timing circuit is to the not influence of normal output of main timing circuit, and main timing circuit is not when the time of setting, arrival had output signal, thereby additional timing circuit output signal makes coil blackout cut off heating power supply.
As shown in Figure 26,10V exports unsettled direct current to the alternating current between the 15V after the first diode D1 carries out halfwave rectifier, unsettled direct current is output galvanic current source VDD behind the filter circuit of the first electrochemical capacitor C1 and first resistance R, 1 composition.DC power supply VDD gives the power supply of main timing circuit and additional timing circuit simultaneously.First pin of timing IC in the additional timing circuit meets DC power supply VDD; The 8th pin ground connection; The parameter that connects the 31 resistance R 31, the 31 resistance R 31 between the second and the 3rd pin has determined the timing of additional timing circuit; The 7th pin is the timing output signal output, and when setting-up time was less than, the 7th pin was output as high level, and setting-up time is output low level then, and the 7th pin is connected with the base stage of the 21 triode Q21 by the 21 resistance R 21.The grounded emitter of the 22 triode Q22, the collector electrode of the 22 triode Q22 is connected with the emitter of the 21 triode Q21, the collector electrode of the 21 triode Q21 connects an end of armature coil and the positive pole of the 21 diode D21, the other end of armature coil and the negative pole of the 21 diode D21 meet power supply VCC, and the output signal of main timing circuit is connected with the base stage of the 22 triode Q22 by the 22 resistance R 22.When choosing the parameter of the 21 resistance R 21, must accomplish that the timing of additional timing circuit is bigger than the maximum timing of main timing circuit.When the in running order and main timing circuit timing of entire circuit is less than, output the 7th pin of additional timing circuit output high level, the 21 triode Q21 is in conducting state.When the operating time of main timing circuit arrives the timing of setting, main timing circuit output low level, the 22 triode Q22 ends, and makes the armature coil outage, thereby has cut off heating power supply; Surpass the time of setting when the operating time of main timing circuit, output the 7th pin output low level of additional timing circuit, the 21 triode Q21 ends, the armature coil outage, thus cut off heating power supply, reach the purpose of safe handling.
As Figure 12, Figure 13, Figure 14, Figure 15, Figure 16 and shown in Figure 17, the integrated circuit of additional timing circuit employing 4060, PT2511, CMS12530, CMS12510,555 or 555 and 4060 are in series.
As shown in figure 19, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded emitter of the 22 triode Q22, the collector electrode of collector electrode and the 21 triode Q21, the positive pole of the 21 diode D21, the end of armature coil L is connected the emitter of the 21 triode Q21, another termination power of the negative pole of the 21 diode D21 and armature coil L.
As shown in figure 20, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded emitter of the 22 triode Q22, collector electrode connects the collector electrode of the 21 triode Q21, and the emitter of the 21 triode Q21 meets armature coil L.
As shown in figure 21, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded emitter of the 22 triode Q22, the emitter of collector electrode and the 21 triode Q21, the positive pole of the 21 diode D21, the end of armature coil L is connected the collector electrode of the 21 triode Q21, another termination power of the negative pole of the 21 diode D21 and armature coil L.
As shown in figure 22, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded collector of the 22 triode Q22, emitter connects the emitter of the 21 triode Q21, and the collector electrode of the 21 triode Q21 meets armature coil L.
As shown in figure 23, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded collector of the 22 triode Q22, the emitter of emitter and the 21 triode Q21, the positive pole of the 21 diode D21, the end of armature coil L is connected the collector electrode of the 21 triode Q21, another termination power of the negative pole of the 21 diode D21 and armature coil L.
As shown in figure 24, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded collector of the 22 triode Q22, emitter connects the collector electrode of the 21 triode Q21, and the emitter of the 21 triode Q21 meets armature coil L.
As shown in figure 25, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded collector of the 22 triode Q22, the collector electrode of emitter and the 21 triode Q21, the positive pole of the 21 diode D21, the end of armature coil L is connected the emitter of the 21 triode Q21, the negative pole of the 21 diode D21 and armature coil L connect power supply.
As shown in figure 27, the timing circuit control method of toaster of the present invention may further comprise the steps: one, baking during bread, with the toaster source that Connects Power; Two, press the taboo hand, main timing circuit and additional timing circuit pick up counting simultaneously; When three, reaching setting-up time, main timing circuit and additional timing circuit are to armature coil drive circuit output signal, and the signal of wherein additional timing circuit output is later than the signal of main timing circuit output; Four, the armature coil drive circuit sends power-off signal; Five, armature coil outage, balladeur train lifts, and when balladeur train lifts, turn-offs the baking power supply, and baking finishes.
When main timing circuit and additional timing circuit during all to armature coil drive circuit output signal, the armature coil drive circuit is accepted the signal of the main timing circuit output that arrives earlier, finishes control signal from outage to armature coil that send.
When main timing circuit hinders can not be to armature coil drive circuit output signal the time for some reason, additional timing circuit is to armature coil drive circuit output signal, the armature coil drive circuit is accepted the signal of additional timing circuit output, finishes control signal from outage to armature coil that send.
When additional timing circuit broke down, main timing circuit was to armature coil drive circuit output signal, and the armature coil drive circuit is accepted the signal of main timing circuit output, finishes control signal from outage to armature coil that send.
Claims (14)
1. the timing circuit of a toaster comprises the current rectifying and wave filtering circuit that is linked in sequence, main timing circuit and coil driver, it is characterized in that: described main timing circuit two ends are parallel with additional timing circuit.
2. the timing circuit of toaster according to claim 1 is characterized in that: described additional timing circuit employing integrated circuit.
3. the timing circuit of toaster according to claim 2 is characterized in that: described integrated circuit adopts 4060, PT2511, CMS12530, CMS12510,555 or 555 and 4060 are in series.
4. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, collector electrode connects the emitter of the 21 triode, and the collector electrode of the 21 triode connects armature coil.
5. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, the collector electrode of collector electrode and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the emitter of the 21 triode, another termination power of the negative pole of the 21 diode and armature coil.
6. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, collector electrode connects the collector electrode of the 21 triode, and the emitter of the 21 triode connects armature coil.
7. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, the emitter of collector electrode and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the collector electrode of the 21 triode, another termination power of the negative pole of the 21 diode and armature coil.
8. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter connects the emitter of the 21 triode, and the collector electrode of the 21 triode connects armature coil.
9. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, the emitter of emitter and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the collector electrode of the 21 triode, another termination power of the negative pole of the 21 diode and armature coil.
10. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter connects the collector electrode of the 21 triode, and the emitter of the 21 triode connects armature coil.
11. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, the collector electrode of emitter and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the emitter of the 21 triode, the negative pole and the armature coil of the 21 diode connect power supply.
12. the timing circuit control method of a toaster may further comprise the steps: one, press when prohibiting hand, main timing circuit and additional timing circuit pick up counting simultaneously; When two, reaching setting-up time, main timing circuit and additional timing circuit are to armature coil drive circuit output signal; Three, the armature coil drive circuit sends power-off signal; Four, armature coil outage, balladeur train lifts.
13. the timing circuit control method of toaster according to claim 12 is characterized in that: the signal of described additional timing circuit output is later than the signal of main timing circuit output.
14. the timing circuit control method of toaster according to claim 13 is characterized in that: when described balladeur train lifts, turn-off the baking power supply, baking finishes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100358760A CN100546188C (en) | 2005-07-06 | 2005-07-06 | The timing circuit of toaster and control method thereof |
| PCT/CN2005/001742 WO2006045242A1 (en) | 2004-10-25 | 2005-10-21 | Bread-toaster control circuit and corresponding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100358760A CN100546188C (en) | 2005-07-06 | 2005-07-06 | The timing circuit of toaster and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1738203A true CN1738203A (en) | 2006-02-22 |
| CN100546188C CN100546188C (en) | 2009-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100358760A Expired - Fee Related CN100546188C (en) | 2004-10-25 | 2005-07-06 | The timing circuit of toaster and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100546188C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525293A (en) * | 2011-12-30 | 2012-07-04 | 宁波长生电器有限公司 | Toaster having safety protection function |
| CN111096066A (en) * | 2017-07-07 | 2020-05-01 | 品谱公司 | Secondary circuit and timing device for an appliance |
-
2005
- 2005-07-06 CN CNB2005100358760A patent/CN100546188C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525293A (en) * | 2011-12-30 | 2012-07-04 | 宁波长生电器有限公司 | Toaster having safety protection function |
| CN102525293B (en) * | 2011-12-30 | 2014-07-23 | 宁波长生电器有限公司 | Toaster having safety protection function |
| CN111096066A (en) * | 2017-07-07 | 2020-05-01 | 品谱公司 | Secondary circuit and timing device for an appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100546188C (en) | 2009-09-30 |
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Granted publication date: 20090930 Termination date: 20130706 |