CN104820450A - Constant temperature control circuit - Google Patents
Constant temperature control circuit Download PDFInfo
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- CN104820450A CN104820450A CN201510207909.9A CN201510207909A CN104820450A CN 104820450 A CN104820450 A CN 104820450A CN 201510207909 A CN201510207909 A CN 201510207909A CN 104820450 A CN104820450 A CN 104820450A
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- commercial power
- power socket
- triode
- control circuit
- temperature control
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Abstract
The invention discloses a constant temperature control circuit. The constant temperature control circuit includes a commercial power socket; the commercial power socket is externally connected with commercial power; one end of the commercial power socket is connected with the positive pole of a diode through a capacitor; the negative pole of a voltage-regulator diode is connected with the collector of a triode and one end of a sliding rheostat; the adjusting end of the sliding rheostat is connected with the negative pole of the diode; the base of the triode is connected with the other end of the sliding rheostat; the base of the triode is also connected with the other end of the commercial power socket through a thermistor; the emitter of the triode is connected with the other end of the commercial power socket through a resistor; the emitter of the triode is also connected with the triggering end of a bidirectional thyristor; the bidirectional thyristor is connected in series with the commercial power socket; and the commercial power socket is in plugging connection with a heating electric appliance. The constant temperature control circuit of the invention has the advantages of simplicity, adjustable sensitivity, convenient use, low cost and convenience in mass production, and has a bright application prospect.
Description
Technical field
The present invention relates to a kind of constant temperature control circuit, belong to electronic circuit technology field.
Background technology
At present, the kind of temperature-control circuit on the market gets more and more, and circuit is more complicated also, and used electronic devices and components are also more, and cost is higher, be not easy to batch production, but simple constant-temperature circuit, sensitivity can not regulate, and uses inconvenience.
Summary of the invention
The present invention seeks to the temperature-control circuit in order to overcome on above market, circuit is more complicated also, and used electronic devices and components are also more, and cost is higher, and be not easy to batch production, simple constant-temperature circuit, sensitivity can not regulate, inconvenient problem with use.Constant temperature control circuit of the present invention, circuit is simple, can regulate sensitivity, easy to use, with low cost, is convenient to batch production, has a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of constant temperature control circuit, it is characterized in that: comprise commercial power socket XS, the external civil power of described commercial power socket XS, one end of described commercial power socket XS is connected with the positive pole of diode VD1 by electric capacity C1, the negative pole of described voltage stabilizing diode VD1 respectively with the collector of triode Q1, one end of slide rheostat RP is connected, the adjustable side of described slide rheostat RP is also connected with the negative pole of diode VD1, the base stage of described triode Q1 is connected with the other end of slide rheostat RP, the base stage of described triode Q1 is also connected with the other end of commercial power socket XS by thermistor RT, the emitter of described triode Q1 is connected with the other end of commercial power socket XS by resistance R1, the described emitter stating triode Q1 is also connected with the trigger end of bidirectional thyristor VT, described bidirectional thyristor VT is connected on commercial power socket XS, the two ends of described commercial power socket XS are also parallel with voltage stabilizing diode VD2, the negative pole of described voltage stabilizing diode VD2 is connected with the positive pole of diode VD1, the described positive pole of voltage stabilizing diode VD2 is connected with the other end of commercial power socket XS, described commercial power socket XS is used for grafting heating electrical appliance.
Aforesaid constant temperature control circuit, is characterized in that: described commercial power socket XS is also in series with fuse F1.
Aforesaid constant temperature control circuit, is characterized in that: described thermistor RT is negative tempperature coefficient thermistor.
Aforesaid constant temperature control circuit, is characterized in that: described commercial power socket XS is also provided with shift knob.
Aforesaid constant temperature control circuit, is characterized in that: described triode Q1 is NPN type triode.
Aforesaid constant temperature control circuit, is characterized in that: the base stage of described triode Q1 is also connected as current-limiting resistance R2.
The invention has the beneficial effects as follows: constant temperature control circuit of the present invention, circuit is simple, can regulate sensitivity, easy to use, with low cost, is convenient to batch production, has a good application prospect.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of constant temperature control circuit of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of constant temperature control circuit, comprise commercial power socket XS, the external civil power of commercial power socket XS, one end of commercial power socket XS is connected with the positive pole of diode VD1 by electric capacity C1, the negative pole of voltage stabilizing diode VD1 respectively with the collector of triode Q1, one end of slide rheostat RP is connected, the adjustable side of slide rheostat RP is also connected with the negative pole of diode VD1, the base stage of triode Q1 is connected with the other end of slide rheostat RP, the base stage of triode Q1 is also connected with the other end of commercial power socket XS by thermistor RT, the emitter of triode Q1 is connected with the other end of commercial power socket XS by resistance R1, the emitter of triode Q1 is also connected with the trigger end of bidirectional thyristor VT, bidirectional thyristor VT is connected on commercial power socket XS, the two ends of commercial power socket XS are also parallel with voltage stabilizing diode VD2, the negative pole of voltage stabilizing diode VD2 is connected with the positive pole of diode VD1, the positive pole of voltage stabilizing diode VD2 is connected with the other end of commercial power socket XS, commercial power socket XS is used for grafting heating electrical appliance.
Described commercial power socket XS is also in series with fuse F1; protection circuit; prevent electric current excessive; burn out circuit or socket; described thermistor RT is negative tempperature coefficient thermistor, and commercial power socket XS is also provided with shift knob, automatically can control heating electrical appliance work or manually control; triode Q1 is NPN type triode, and the base stage of triode Q1 is also connected as current-limiting resistance R2.
Constant temperature control circuit principle of work of the present invention is as follows, thermistor RT is 10k Ω 20 DEG C of resistances, after slide rheostat RP dividing potential drop, triode Q1 conducting, firing point can regulate slide rheostat RP resistance to regulate, the emitter of triode Q1 produces the direct supply of 3V, be added to the trigger end of bidirectional thyristor VT, bidirectional thyristor VT is triggered conducting, the heating electrical appliance be inserted on commercial power socket XS obtains electric work, when after heating electrical appliance heat temperature raising, the resistance of thermistor RT diminishes, when arriving uniform temperature, (can regulate according to slide rheostat RP), triode Q1 ends, the trigger voltage of bidirectional thyristor VT disappears, commercial power socket XS disconnects automatically, heating electrical appliance civil power quits work, until after temperature is reduced to triode Q1 conducting, at repetition said process, circuit is simple, sensitivity can be regulated, easy to use, with low cost, be convenient to batch production, have a good application prospect.
More than show and describe ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. a constant temperature control circuit, it is characterized in that: comprise commercial power socket XS, the external civil power of described commercial power socket XS, one end of described commercial power socket XS is connected with the positive pole of diode VD1 by electric capacity C1, the negative pole of described voltage stabilizing diode VD1 respectively with the collector of triode Q1, one end of slide rheostat RP is connected, the adjustable side of described slide rheostat RP is also connected with the negative pole of diode VD1, the base stage of described triode Q1 is connected with the other end of slide rheostat RP, the base stage of described triode Q1 is also connected with the other end of commercial power socket XS by thermistor RT, the emitter of described triode Q1 is connected with the other end of commercial power socket XS by resistance R1, the described emitter stating triode Q1 is also connected with the trigger end of bidirectional thyristor VT, described bidirectional thyristor VT is connected on commercial power socket XS, the two ends of described commercial power socket XS are also parallel with voltage stabilizing diode VD2, the negative pole of described voltage stabilizing diode VD2 is connected with the positive pole of diode VD1, the described positive pole of voltage stabilizing diode VD2 is connected with the other end of commercial power socket XS, described commercial power socket XS is used for grafting heating electrical appliance.
2. constant temperature control circuit according to claim 1, is characterized in that: described commercial power socket XS is also in series with fuse F1.
3. according to claim 1, kind constant temperature control circuit, is characterized in that: described thermistor RT is negative tempperature coefficient thermistor.
4. constant temperature control circuit according to claim 1, is characterized in that: described commercial power socket XS is also provided with shift knob.
5. constant temperature control circuit according to claim 1, is characterized in that: described triode Q1 is NPN type triode.
6. constant temperature control circuit according to claim 1, is characterized in that: the base stage of described triode Q1 is also connected as current-limiting resistance R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207909.9A CN104820450A (en) | 2015-04-29 | 2015-04-29 | Constant temperature control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207909.9A CN104820450A (en) | 2015-04-29 | 2015-04-29 | Constant temperature control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104820450A true CN104820450A (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510207909.9A Pending CN104820450A (en) | 2015-04-29 | 2015-04-29 | Constant temperature control circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN104820450A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105511544A (en) * | 2016-01-15 | 2016-04-20 | 中山芯达电子科技有限公司 | Adjustable voltage stabilizing circuit |
| CN106994201A (en) * | 2017-05-24 | 2017-08-01 | 河北科技大学 | One kind breathing humidifying instrument and its measurement thermal circuit |
| CN112230695A (en) * | 2020-10-20 | 2021-01-15 | 河北格菱电磁采暖设备有限公司 | Ceramic infrared heater for aluminum-titanium alloy module boiler |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202720527U (en) * | 2012-06-29 | 2013-02-06 | 童兵 | Constant temperature controller circuit |
| CN203662167U (en) * | 2013-12-10 | 2014-06-25 | 重庆市百可科技（集团）有限公司 | Self-heating heat-preservation lunch box |
| CN203773384U (en) * | 2013-11-18 | 2014-08-13 | 西安丁子电子信息科技有限公司 | Constant temperature circuit formed by single transistor |
| CN204705919U (en) * | 2015-04-29 | 2015-10-14 | 苏州固基电子科技有限公司 | A kind of constant temperature control circuit |
-
2015
- 2015-04-29 CN CN201510207909.9A patent/CN104820450A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202720527U (en) * | 2012-06-29 | 2013-02-06 | 童兵 | Constant temperature controller circuit |
| CN203773384U (en) * | 2013-11-18 | 2014-08-13 | 西安丁子电子信息科技有限公司 | Constant temperature circuit formed by single transistor |
| CN203662167U (en) * | 2013-12-10 | 2014-06-25 | 重庆市百可科技（集团）有限公司 | Self-heating heat-preservation lunch box |
| CN204705919U (en) * | 2015-04-29 | 2015-10-14 | 苏州固基电子科技有限公司 | A kind of constant temperature control circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105511544A (en) * | 2016-01-15 | 2016-04-20 | 中山芯达电子科技有限公司 | Adjustable voltage stabilizing circuit |
| CN106994201A (en) * | 2017-05-24 | 2017-08-01 | 河北科技大学 | One kind breathing humidifying instrument and its measurement thermal circuit |
| CN106994201B (en) * | 2017-05-24 | 2024-02-27 | 河北科技大学 | Breathe humidifier and measure heat preservation circuit thereof |
| CN112230695A (en) * | 2020-10-20 | 2021-01-15 | 河北格菱电磁采暖设备有限公司 | Ceramic infrared heater for aluminum-titanium alloy module boiler |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150805 |
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| RJ01 | Rejection of invention patent application after publication |