CN104216435A - Control circuit - Google Patents
Control circuit Download PDFInfo
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- CN104216435A CN104216435A CN201310215140.6A CN201310215140A CN104216435A CN 104216435 A CN104216435 A CN 104216435A CN 201310215140 A CN201310215140 A CN 201310215140A CN 104216435 A CN104216435 A CN 104216435A
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- module
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- heating
- divider resistance
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Abstract
An embodiment of the invention discloses a control circuit. The control circuit comprises a rectifying and filtering module, a comparison module, a switching module and a heating module; the rectifying and filtering module is used for converting received alternating-voltage into direct-current working voltage of a post-stage circuit; the comparison module connected with the rectifying and filtering module is used for generating reference voltage according to the direct-current working voltage, comparing the reference voltage with actual voltage corresponding to temperature of a working area and outputting a corresponding level signal according to a comparison result; the switching module connected with the comparison module is used for receiving the level signal and outputting a corresponding switching signal; the heating module connected with the switching module is used for receiving the alternating-current voltage and is powered on to start heating or powered off to stop heating according to the switching signal so as to enable the temperature of the working area to be kept within a preset range; both the comparison module and the heating module are located in the working area. By the control circuit, working status of the heating module can be controlled automatically according to changes of the temperature of the working area so as to ensure that the temperature of the working area is kept within the preset range.
Description
Technical field
The present invention relates to electronic applications, particularly relate to a kind of control circuit.
Background technology
Along with the development of light fixture, its application is also more and more extensive, and except illumination uses, it can also be used for other aspects such as heating.Existing domestic fowl farming is when carrying out chicken or duckling hatching, and original hatching efficiency is lower, cannot meet the demand of people.If suitable temperature environment manually can be manufactured to hatch in batches, so its hatching efficiency will promote greatly, similarly, keep in the scene of certain temperature range in some other needs, many times need artificial adjustment in real time, its temperature controls comparatively to bother, and needs to expend the more time and efforts of user.
Summary of the invention
Embodiment of the present invention technical matters to be solved is, provides a kind of control circuit.Automatically can control the duty of heating module according to the change of perform region temperature, guarantee that the temperature of perform region remains on preset range.
In order to solve the problems of the technologies described above, embodiments provide a kind of control circuit, comprising:
Rectification filtering module, for being converted to the direct-current working volts of late-class circuit by the alternating voltage of reception;
Comparison module, is connected with described rectification filtering module, and for generating reference voltage according to described direct-current working volts, more described reference voltage and the virtual voltage corresponding with perform region temperature, export corresponding level signal according to comparative result;
Switch module, is connected with described comparison module, for receiving described level signal, exports corresponding switching signal;
Heating module, being connected with described switch module, for receiving alternating voltage, starting heating according to the energising of described switching signal or power-off stops heating making the temperature of described perform region remain on preset range, wherein, described comparison module and described heating module are all positioned at described perform region.
Wherein, described control circuit also comprises indicating module, and described indicating module is connected with the output terminal of described comparison module, for receiving the level signal that described comparison module exports, indicates the duty of described heating module.
Wherein, described rectification filtering module comprises transformer, rectifier bridge, filter capacitor, the two ends of the primary coil of described transformer connect two input ends of alternating voltage respectively, the first input end of rectifier bridge described in secondary coil one termination, second input end of rectifier bridge described in another termination, first of described rectifier bridge exports the positive pole of filter capacitor described in termination, the negative pole of filter capacitor described in the second output termination.
Wherein, described comparison module comprises the first divider resistance, thermistor, second divider resistance, voltage stabilizing diode and comparer, the positive pole of filter capacitor described in described first divider resistance one termination, one end of thermistor described in another termination, the negative pole of filter capacitor described in another termination of described thermistor, the positive pole of filter capacitor described in described second divider resistance one termination, the negative electrode of voltage stabilizing diode described in another termination, the anode of described voltage stabilizing diode connects the negative pole of described filter capacitor, the in-phase input end of described comparer connects the common node of described first divider resistance and thermistor, the common node of the second divider resistance described in anti-phase input termination and described voltage stabilizing diode negative electrode, export switch module described in termination.
Wherein, described first divider resistance is adjustable resistance.
Wherein, described switch module comprises the 3rd divider resistance, switching tube, relay, the output terminal of comparer described in one termination of described 3rd divider resistance, the base stage of switching tube described in another termination, the emitter of described switching tube connects the second output terminal of described rectifier bridge, collector connects coil one end of described relay, and the first output terminal of rectifier bridge described in another termination of the coil of described relay, the switch of described relay connects described heating module.
Wherein, described heating module comprises heating bulb, the first input end of alternating voltage described in a termination of described heating bulb, the switch of relay described in another termination, and the switch of described relay connects the second input end of described alternating voltage.
Wherein, described indicating module comprises the 4th divider resistance and light emitting diode, the common node of comparator output terminal and described 3rd divider resistance described in described 4th divider resistance one termination, the positive pole of light emitting diode described in another termination, the negative pole of described light emitting diode connects the negative pole of described filter capacitor.
Wherein, described switching tube is NPN type triode.
Wherein, described preset range is 25 degrees Celsius to 45 degrees Celsius.
Implement the embodiment of the present invention, there is following beneficial effect:
By comparison module benchmark voltage and the virtual voltage corresponding with perform region temperature, thus generate level signal to switch module, control conducting and the closedown in loop, heating module place, finally make when perform region temperature is lower, automatic startup heating module heating, when perform region temperature is higher, automatic stopping heating module heating, finally guarantee within the preset range that the temperature of perform region keeps, be beneficial to the suitable temperature of maintenance for hatching poultry etc., whole heating process is without the need to manual operation, simple and reliable.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the connection diagram of the first embodiment of control circuit of the present invention;
Fig. 2 is the connection diagram of the second embodiment of control circuit of the present invention;
Fig. 3 is the circuit diagram of the 3rd embodiment of control circuit of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope that the present invention controls.
Please refer to Fig. 1, be the connection diagram of the first embodiment of control circuit of the present invention, in the present embodiment, described circuit comprises: rectification filtering module 1, comparison module 2, switch module 3, heating module 4.
Described rectification filtering module 1 is for being converted to the direct-current working volts of late-class circuit by the alternating voltage of reception;
Described comparison module 2 is connected with described rectification filtering module 1, and for generating reference voltage according to described direct-current working volts, more described reference voltage and the virtual voltage corresponding with perform region temperature, export corresponding level signal according to comparative result;
Described switch module 3 is connected with described comparison module 2, for receiving described level signal, exports corresponding switching signal;
Described heating module 4 is connected with described switch module 3, for receiving alternating voltage, heating is started or power-off stops heating making the temperature of described perform region remain on preset range according to the energising of described switching signal, wherein, described comparison module 2 is all positioned at described perform region with described heating module 4.
By comparison module benchmark voltage and the virtual voltage corresponding with perform region temperature, thus generate level signal to switch module, control conducting and the closedown in loop, heating module place, finally make when perform region temperature is lower, automatic startup heating module heating, when perform region temperature is higher, automatic stopping heating module heating, finally guarantee within the preset range that the temperature of perform region keeps, be beneficial to the suitable temperature of maintenance for hatching poultry etc., whole heating process is without the need to manual operation, simple and reliable.
Please refer to Fig. 2, is the connection diagram of the second embodiment of control circuit of the present invention; In the present embodiment, described circuit comprises: rectification filtering module 1, comparison module 2, switch module 3, heating module 4, indicating module 5.
Described rectification filtering module 1 is for being converted to the direct-current working volts of late-class circuit by the alternating voltage of reception;
Described comparison module 2 is connected with described rectification filtering module 1, and for generating reference voltage according to described direct-current working volts, more described reference voltage and the virtual voltage corresponding with perform region temperature, export corresponding level signal according to comparative result;
Described switch module 3 is connected with described comparison module 2, for receiving described level signal, exports corresponding switching signal;
Described heating module 4 is connected with described switch module 3, for receiving alternating voltage, heating is started or power-off stops heating making the temperature of described perform region remain on preset range according to the energising of described switching signal, wherein, described comparison module 2 is all positioned at described perform region with described heating module 4.
Described indicating module 5 is connected with the output terminal of described comparison module 2, for receiving the level signal that described comparison module 2 exports, indicates the duty of described heating module 4.
Indicating module can be arranged on user and facilitate visible place, even if away from perform region, user also can understand the duty of heating module and the real time temperature situation of perform region.Indicating module can with sound as hummer, light such as the modes such as light emitting diode point out user.
Please refer to Fig. 3, be the circuit diagram of the 3rd embodiment of control circuit of the present invention, in the present embodiment, described circuit comprises: rectification filtering module, comparison module, switch module, heating module, indicating module.
Described rectification filtering module is used for the direct-current working volts alternating voltage of reception being converted to late-class circuit;
Described comparison module is connected with described rectification filtering module, and for generating reference voltage according to described direct-current working volts, more described reference voltage and the virtual voltage corresponding with perform region temperature, export corresponding level signal according to comparative result;
Described switch module is connected with described comparison module, for receiving described level signal, exports corresponding switching signal;
Described heating module is connected with described switch module, for receiving alternating voltage, heating is started or power-off stops heating making the temperature of described perform region remain on preset range according to the energising of described switching signal, wherein, described comparison module and described heating module are all positioned at described perform region.
Described indicating module is connected with the output terminal of described comparison module, for receiving the level signal that described comparison module exports, indicates the duty of described heating module.
Particularly, described rectification filtering module comprises transformer T, rectifier bridge BD, filter capacitor C, the two ends of the primary coil of described transformer T connect two input ends of alternating voltage respectively, the first input end of rectifier bridge BD described in secondary coil one termination, second input end of rectifier bridge BD described in another termination, first of described rectifier bridge BD exports the positive pole of filter capacitor C described in termination, the negative pole of filter capacitor C described in the second output termination.
Described comparison module comprises the first divider resistance R1, thermistor RT, second divider resistance R2, voltage stabilizing diode D and comparer U, the positive pole of filter capacitor C described in described first divider resistance R1 mono-termination, one end of thermistor RT described in another termination, the negative pole of filter capacitor C described in described another termination of thermistor RT, the positive pole of filter capacitor C described in described second divider resistance R2 mono-termination, the negative electrode of voltage stabilizing two pole D pipe described in another termination, the anode of described voltage stabilizing diode D connects the negative pole of described filter capacitor C, the in-phase input end of described comparer U connects the common node of described first divider resistance R1 and thermistor RT, the common node of the second divider resistance R2 described in anti-phase input termination and described voltage stabilizing diode D negative electrode, export switch module described in termination.
Preferably, described first divider resistance R1 is adjustable resistance.
Described switch module comprises the 3rd divider resistance R2, switching tube Q, relay K, the output terminal of comparer U described in one termination of described 3rd divider resistance R3, the base stage of switching tube Q described in another termination, the emitter of described switching tube Q connects second output terminal of described rectifier bridge BD, collector connects coil one end of described relay K, first output terminal of rectifier bridge BD described in another termination of the coil of described relay K, the K switch-1 of described relay K connects described heating module.
Described heating module comprises heating bulb LAMP, and the first input end of alternating voltage described in a termination of described heating bulb LAMP, the K switch-1 of relay K described in another termination, the K switch-1 of described relay K connects the second input end of described alternating voltage.
Preferably, described control circuit also comprises indicating module, and described indicating module is connected with the output terminal of described comparison module, for receiving the level signal that described comparison module exports, indicates the duty of described heating module.
Particularly, described indicating module comprises the 4th divider resistance R4 and LED, the common node of comparer U output terminal and described 3rd divider resistance R3 described in described 4th divider resistance R4 mono-termination, the positive pole of light emitting diode LED described in another termination, the negative pole of described light emitting diode LED connects the negative pole of described filter capacitor C.
Described switching tube Q is NPN type triode.
Described preset range is 25 degrees Celsius to 45 degrees Celsius.
Utilize the temperature characterisitic of thermistor, first divider resistance R1 and thermistor RT forms temperature control voltage circuit, second divider resistance R2 and voltage stabilizing diode D forms reference voltage circuit, when selecting thermistor RT, the value of the first divider resistance R1 need be regulated, by cooperatively interacting, the preset range of temperature can be made to control between 25 degrees Celsius-45 degrees Celsius.Judge whether that output carrys out pilot relay K by a comparator circuit again.When the temperature of perform region is lower than 25 degrees Celsius, thermistor RT resistance raises, RT both end voltage raises, cause the voltage of the in-phase input end of comparer U higher than reference voltage, comparer U exports high level, and high level is powered to the base stage of switching tube Q by the 3rd divider resistance R3, Q conducting, relay K obtains electric work, K switch-1 adhesive, and heating lamp LAMP work of conducting electricity is heated.High level is powered to light emitting diode LED by the 4th divider resistance R4 simultaneously, and now heating lamp LAMP is in running order for prompting user; When the temperature of perform region is higher than 45 degrees Celsius, RT both end voltage is lower, makes the voltage of comparer U in-phase input end lower than reference voltage, output terminal output low level, and Q disconnects, and relay K dead electricity quits work, and K switch-1 disconnects, and LAMP stops heating.LED extinguishes simultaneously, and indicating user now heating lamp LAMP is in stopping heated condition.
It should be noted that, each embodiment in this instructions all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, between each embodiment identical similar part mutually see.For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
By the description of above-described embodiment, the present invention has the following advantages:
By comparison module benchmark voltage and the virtual voltage corresponding with perform region temperature, thus generate level signal to switch module, control conducting and the closedown in loop, heating module place, finally make when perform region temperature is lower, automatic startup heating module heating, when perform region temperature is higher, automatic stopping heating module heating, finally guarantee within the preset range that the temperature of perform region keeps, be beneficial to the suitable temperature of maintenance for hatching poultry etc., whole heating process is without the need to manual operation, simple and reliable.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory is called for short ROM) or random store-memory body (Random Access Memory is called for short RAM) etc.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. a control circuit, is characterized in that, comprising:
Rectification filtering module, for being converted to the direct-current working volts of late-class circuit by the alternating voltage of reception;
Comparison module, is connected with described rectification filtering module, and for generating reference voltage according to described direct-current working volts, more described reference voltage and the virtual voltage corresponding with perform region temperature, export corresponding level signal according to comparative result;
Switch module, is connected with described comparison module, for receiving described level signal, exports corresponding switching signal;
Heating module, being connected with described switch module, for receiving alternating voltage, starting heating according to the energising of described switching signal or power-off stops heating making the temperature of described perform region remain on preset range, wherein, described comparison module and described heating module are all positioned at described perform region.
2. circuit as claimed in claim 1, it is characterized in that, described control circuit also comprises indicating module, and described indicating module is connected with the output terminal of described comparison module, for receiving the level signal that described comparison module exports, indicate the duty of described heating module.
3. circuit as claimed in claim 2, it is characterized in that, described rectification filtering module comprises transformer, rectifier bridge, filter capacitor, the two ends of the primary coil of described transformer connect two input ends of alternating voltage respectively, the first input end of rectifier bridge described in secondary coil one termination, second input end of rectifier bridge described in another termination, first of described rectifier bridge exports the positive pole of filter capacitor described in termination, the negative pole of filter capacitor described in the second output termination.
4. circuit as claimed in claim 3, it is characterized in that, described comparison module comprises the first divider resistance, thermistor, second divider resistance, voltage stabilizing diode and comparer, the positive pole of filter capacitor described in described first divider resistance one termination, one end of thermistor described in another termination, the negative pole of filter capacitor described in another termination of described thermistor, the positive pole of filter capacitor described in described second divider resistance one termination, the negative electrode of voltage stabilizing diode described in another termination, the anode of described voltage stabilizing diode connects the negative pole of described filter capacitor, the in-phase input end of described comparer connects the common node of described first divider resistance and thermistor, the common node of the second divider resistance described in anti-phase input termination and described voltage stabilizing diode negative electrode, export switch module described in termination.
5. circuit as claimed in claim 4, it is characterized in that, described first divider resistance is adjustable resistance.
6. circuit as claimed in claim 5, it is characterized in that, described switch module comprises the 3rd divider resistance, switching tube, relay, the output terminal of comparer described in one termination of described 3rd divider resistance, the base stage of switching tube described in another termination, the emitter of described switching tube connects the second output terminal of described rectifier bridge, and collector connects coil one end of described relay, first output terminal of rectifier bridge described in another termination of the coil of described relay, the switch of described relay connects described heating module.
7. circuit as claimed in claim 6, it is characterized in that, described heating module comprises heating bulb, the first input end of alternating voltage described in a termination of described heating bulb, the switch of relay described in another termination, the switch of described relay connects the second input end of described alternating voltage.
8. circuit as claimed in claim 7, it is characterized in that, described indicating module comprises the 4th divider resistance and light emitting diode, the common node of comparator output terminal and described 3rd divider resistance described in described 4th divider resistance one termination, the positive pole of light emitting diode described in another termination, the negative pole of described light emitting diode connects the negative pole of described filter capacitor.
9. circuit as claimed in claim 8, it is characterized in that, described switching tube is NPN type triode.
10. circuit as claimed in claim 9, it is characterized in that, described preset range is 25 degrees Celsius to 45 degrees Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215140.6A CN104216435A (en) | 2013-05-31 | 2013-05-31 | Control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215140.6A CN104216435A (en) | 2013-05-31 | 2013-05-31 | Control circuit |
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| CN104216435A true CN104216435A (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310215140.6A Pending CN104216435A (en) | 2013-05-31 | 2013-05-31 | Control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550507A (en) * | 2016-11-03 | 2017-03-29 | 中山市荣亮照明有限公司 | LED lighting down lamp |
| CN111999549A (en) * | 2020-08-27 | 2020-11-27 | 广东电网有限责任公司广州供电局 | Live fault warning device for zero line |
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| CN2105716U (en) * | 1991-12-12 | 1992-05-27 | 卢国区 | Fireproof temperature-regulated controller for electric mattress |
| JPH04156605A (en) * | 1990-10-19 | 1992-05-29 | Fukushima Kogyo Kk | Controller |
| CN2116240U (en) * | 1992-01-29 | 1992-09-16 | 衡南县农业机械管理局 | Multipurpose electronic temp self-control instrument |
| CN201297269Y (en) * | 2008-11-28 | 2009-08-26 | 江苏省电力公司南京供电公司 | Capacitor exhaust fan controller in transformer substation indoor |
| CN202152747U (en) * | 2011-05-22 | 2012-02-29 | 聊城市科特祥瑞新能源有限公司 | Large power led lamp temperature control circuit |
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2013
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS58153032A (en) * | 1982-03-08 | 1983-09-10 | Mitsubishi Heavy Ind Ltd | Process for controlling dehumidification in air conditioning equipment |
| JPH04156605A (en) * | 1990-10-19 | 1992-05-29 | Fukushima Kogyo Kk | Controller |
| CN2105716U (en) * | 1991-12-12 | 1992-05-27 | 卢国区 | Fireproof temperature-regulated controller for electric mattress |
| CN2116240U (en) * | 1992-01-29 | 1992-09-16 | 衡南县农业机械管理局 | Multipurpose electronic temp self-control instrument |
| CN201297269Y (en) * | 2008-11-28 | 2009-08-26 | 江苏省电力公司南京供电公司 | Capacitor exhaust fan controller in transformer substation indoor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106550507A (en) * | 2016-11-03 | 2017-03-29 | 中山市荣亮照明有限公司 | LED lighting down lamp |
| CN111999549A (en) * | 2020-08-27 | 2020-11-27 | 广东电网有限责任公司广州供电局 | Live fault warning device for zero line |
| CN111999549B (en) * | 2020-08-27 | 2023-10-20 | 广东电网有限责任公司广州供电局 | Zero line electrification fault warning device |
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