CN202856419U - Alarm clock circuit structure - Google Patents
Alarm clock circuit structure Download PDFInfo
- Publication number
- CN202856419U CN202856419U CN2012205619071U CN201220561907U CN202856419U CN 202856419 U CN202856419 U CN 202856419U CN 2012205619071 U CN2012205619071 U CN 2012205619071U CN 201220561907 U CN201220561907 U CN 201220561907U CN 202856419 U CN202856419 U CN 202856419U
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- China
- Prior art keywords
- alarm clock
- circuit
- comparator
- battery
- reference source
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses an alarm clock circuit structure belonging to the alarm clock circuit structure technology field. The alarm clock circuit structure comprises a main control board and a battery connected with a main control board circuit. A battery anode circuit is connected with a comparator, which is respectively connected with a light emitting diode ZD and a reference source circuit. The alarm clock structure is used for the alarm clock, and has advantages of simple structure, convenient use, good use effect, and ability of prompting battery level.
Description
Technical field
The utility model relates to a kind of alarm clock circuitry structure, more particularly, relates in particular to a kind of alarm clock circuitry structure.
Background technology
Alarm clock has more and more become the indispensable instrument of working people, and its purpose is used for waking on time the user exactly.Along with the continuous quickening of work rhythm, operating pressure is increasing, and working clan's the length of one's sleep is also thereupon fewer and feweri, and more and more bad.If do not have alarm clock, a lot of working clans can not play bed.Existing alarm clock, lack in design the battery electric quantity prompt facility, this is just so that people in use, can't accurately know the electric weight of battery, in case at night cut work, then the second day quarter-bell that can't sound is waken the user, might make user's working of can't getting up on time, or miss some important moment, cause unnecessary trouble and loss.
The utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, and a kind of simple in structure, easy to use and respond well alarm clock circuitry structure with battery electric quantity prompt facility is provided.
The technical solution of the utility model is achieved in that a kind of alarm clock circuitry structure, comprise master control borad and the battery that is connected with the master control borad circuit, wherein said anode circuit is connected with comparator, and described comparator is connected with respectively light-emitting diode ZD and reference source circuit.
In the above-mentioned alarm clock circuitry structure, the inverting input of described comparator is connected with anode, and normal phase input end is connected with reference source circuit, and output is connected with light-emitting diode ZD.
In the above-mentioned alarm clock circuitry structure, the circuit between described anode and the comparator is provided with resistance R 1.
In the above-mentioned alarm clock circuitry structure, described reference source circuit mainly is comprised of three end adjustable shunt reference source TL431 and the divider resistance R2 that circuit sequentially is connected to the comparator normal phase input end.
In the above-mentioned alarm clock circuitry structure, described reference source circuit comprises that also circuit is connected to the divider resistance R3 of comparator normal phase input end.
After the utility model adopts said structure, by comparator and reference source circuit are set, by comparator benchmark source circuit voltage and cell voltage, when cell voltage is lower than the default voltage of a reference source, then comparator output terminal output high level is lighted light-emitting diode, thereby in time the reminding user battery electric quantity is excessively low, thereby can change timely battery, guarantees that alarm clock can continue normally to work.The utlity model has advantage simple in structure, that processing cost is low, easy to use.
Description of drawings
The utility model is described in further detail below in conjunction with the embodiment in the accompanying drawing, but do not consist of any restriction of the present utility model.
Fig. 1 is circuit structure schematic diagram of the present utility model.
Among the figure: master control borad 1, battery 2, comparator 3, reference source circuit 4.
Embodiment
Consult shown in Figure 1, a kind of alarm clock circuitry structure of the present utility model comprises master control borad 1 and the battery 2 that is connected with master control borad 1 circuit, is connected with comparator 3 at battery 2 cathode circuits, circuit between battery 2 positive poles and comparator 3 is provided with resistance R 1, is used for guaranteeing the safety of circuit; Described comparator 3 is connected with respectively light-emitting diode ZD and reference source circuit 4.Particularly, the inverting input of described comparator 3 and 2 anodal connections of battery, normal phase input end is connected with reference source circuit 3, and output is connected with light-emitting diode ZD.Reference source circuit 4 in the present embodiment mainly is connected to the divider resistance R3 that three end adjustable shunt reference source TL431 of comparator 3 normal phase input ends and divider resistance R2 and circuit are connected to comparator 3 normal phase input ends by circuit sequentially and forms, and divider resistance R3 and resistance R 2 are in parallel to be connected with comparator 3 normal phase input ends afterwards.
During use, default three end adjustable shunt reference source TL431 voltages are 2.5V, obtain again the normal phase input end of the reference voltage supply comparator 3 of 1.2V by divider resistance R2 and divider resistance R3 dividing potential drop, the 1.5V voltage of inverting input access battery 2 positive poles of comparator 3.When full when electricity, the anti-phase input terminal voltage of comparator 3 is greater than normal phase input end voltage, the output output low level of comparator 3, and light-emitting diode ZD does not work; When the voltage of battery 2 was lower than 1.2V, the anti-phase input terminal voltage of comparator 3 was less than normal phase input end voltage, and the output of comparator 3 is exported high level, and light-emitting diode ZD lights, and prompting user battery 2 brownouts should in time be changed battery 2.
Claims (5)
1. alarm clock circuitry structure, comprise master control borad (1) and the battery (2) that is connected with master control borad (1) circuit, it is characterized in that described battery (2) cathode circuit is connected with comparator (3), described comparator (3) is connected with respectively light-emitting diode ZD and reference source circuit (4).
2. alarm clock circuitry structure according to claim 1 is characterized in that, the inverting input of described comparator (3) is connected with battery (2) is anodal, and normal phase input end is connected with reference source circuit (3), and output is connected with light-emitting diode ZD.
3. alarm clock circuitry structure according to claim 2 is characterized in that, the circuit between described battery (2) positive pole and the comparator (3) is provided with resistance R 1.
4. according to claim 1 to 3 arbitrary described alarm clock circuitry structures, it is characterized in that described reference source circuit (4) mainly is comprised of three end adjustable shunt reference source TL431 and the divider resistance R2 that circuit sequentially is connected to comparator (3) normal phase input end.
5. alarm clock circuitry structure according to claim 4 is characterized in that, described reference source circuit (4) comprises that also circuit is connected to the divider resistance R3 of comparator (3) normal phase input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205619071U CN202856419U (en) | 2012-10-29 | 2012-10-29 | Alarm clock circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205619071U CN202856419U (en) | 2012-10-29 | 2012-10-29 | Alarm clock circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202856419U true CN202856419U (en) | 2013-04-03 |
Family
ID=47987575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205619071U Expired - Fee Related CN202856419U (en) | 2012-10-29 | 2012-10-29 | Alarm clock circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202856419U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426124A (en) * | 2013-08-23 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | Overvoltage protection circuit and lamp with overvoltage protection function |
| CN104979868A (en) * | 2015-05-26 | 2015-10-14 | 孙景春 | Circuit structure of alarm clock |
| CN105320005A (en) * | 2014-08-04 | 2016-02-10 | Tcl通力电子（惠州）有限公司 | Alarm clock circuit and sound device |
-
2012
- 2012-10-29 CN CN2012205619071U patent/CN202856419U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426124A (en) * | 2013-08-23 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | Overvoltage protection circuit and lamp with overvoltage protection function |
| CN105320005A (en) * | 2014-08-04 | 2016-02-10 | Tcl通力电子（惠州）有限公司 | Alarm clock circuit and sound device |
| CN105320005B (en) * | 2014-08-04 | 2017-12-29 | Tcl通力电子（惠州）有限公司 | Alarm clock circuitry and stereo set |
| CN104979868A (en) * | 2015-05-26 | 2015-10-14 | 孙景春 | Circuit structure of alarm clock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20131029 |