CN104062592A - Power quantity detection circuit and lighting device - Google Patents
Power quantity detection circuit and lighting device Download PDFInfo
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- CN104062592A CN104062592A CN201310096034.0A CN201310096034A CN104062592A CN 104062592 A CN104062592 A CN 104062592A CN 201310096034 A CN201310096034 A CN 201310096034A CN 104062592 A CN104062592 A CN 104062592A
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- electric quantity
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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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- Measurement Of Current Or Voltage (AREA)
Abstract
The embodiment of the invention discloses a power quantity detection circuit, comprising a power supply, a reset circuit, a switching circuit, a voltage stabilizing circuit and a crystal oscillator circuit; the power quantity detection circuit also comprises an electric quantity test circuit for cutting off power supply and giving an alarm when remaining power quantity is lower than a preset value, and an electric quantity display circuit for displaying remaining electric quantity of the power supply; when the switch of the switching circuit is pressed down, the electric quantity display circuit automatically displays the remaining electric quantity of the power supply, and if the remaining electric quantity of the power supply is lower than the preset value, the electric quantity test circuit cuts off power supply and gives the alarm. The power quantity detection circuit and the lighting device having the same provided by the invention can automatically cut off power supply and give the alarm when the remaining electric quantity of the power supply is lower than a preset value, and meanwhile can display the remaining electric quantity of the power supply in real time according to requirements of users, thus being improved in service life of the power supply.
Description
Technical field
The present invention relates to mains lighting supply field, relate to particularly a kind of electric quantity of power supply testing circuit and lighting device.
Background technology
Along with scientific and technological development, lighting hours, brightness, the complexity of people to light fixture requires more and more higher, and power unit in light fixture is the vitals that supports light fixture and have above feature, current existing lamp power electric quantity display device is not very accurate, can not provide in real time the accurate dump energy of power supply, can not reminding user in the time that electric quantity of power supply is lower, therefore, user uses power supply in the time of low electric weight, not only affect the judgement of user to the lamp lighting time, also easily reduce the life-span of power supply.
Summary of the invention
Embodiment of the present invention technical matters to be solved is, a kind of electric quantity of power supply testing circuit is provided, and can detect in real time power supply dump energy, simultaneously can reminding user charging.
Electric quantity of power supply testing circuit of the present invention, comprise: chip U2, power supply, reset circuit, on-off circuit, mu balanced circuit and crystal oscillating circuit, described reset circuit is connected with the 9th pin of described chip U2, for the electrification reset of described electric quantity of power supply testing circuit, described on-off circuit is connected with the 14 pin of described chip U2, for controlling the switch of described electric quantity display circuit, described mu balanced circuit is connected with the 39 pin of described chip U2, be used for keeping output voltage stabilization, described crystal oscillating circuit is connected with the tenth tripod with the 12 pin of described chip U2, be used to described chip U2 that the signal source of fixed frequency is provided, also comprise:
Electric quantity test circuit, for cutting off the electricity supply and report to the police during lower than preset value at described power supply dump energy;
Electric quantity display circuit, for showing the dump energy of described power supply;
Wherein, press after the switch of described on-off circuit, described electric quantity display circuit automatically shows the dump energy of described power supply, if the dump energy of described power supply lower than preset value, described electric quantity test circuitry cuts power supply reporting to the police.
Wherein, electric quantity test circuit comprises: hummer T1, voltage transformation module U1, chip U2 and switching tube Q1;
One end of described hummer T1 is connected with the tripod of described voltage transformation module U1, the other end of described hummer T1 is connected with the collector of described switching tube Q1, the base stage of described switching tube Q1 is connected with the 40 pin of described chip U2, described chip U2 is for controlling the open and close of described switching tube Q1, the grounded emitter of described switching tube Q1.
Wherein, electric quantity display circuit also comprises charactron, and described charactron is two seven segment digital tubes.
Wherein, the section of described charactron selects pin a to be connected with the 22 pin of chip U2;
The section of described charactron selects pin b to be connected with the 20 tripod of chip U2;
The section of described charactron selects pin c to be connected with the 24 pin of chip U2;
The section of described charactron selects pin d to be connected with the 25 pin of chip U2;
The section of described charactron selects pin e to be connected with the 26 pin of chip U2;
The section of described charactron selects pin f to be connected with the 27 pin of chip U2;
The section of described charactron selects pin g to be connected with the 20 octal of chip U2;
The section of described charactron selects pin DP to be connected with the 29 pin of chip U2;
The position of described charactron selects pin A1 to be connected with the 15 pin of chip U2;
The position of described charactron selects pin A2 to be connected with the 16 pin of chip U2.
Wherein, on-off circuit comprises: switch S 2;
One end of described switch S 2 is connected with the 14 pin of chip U2, the other end ground connection of described switch S 2.
Wherein, mu balanced circuit comprises: chip U1, capacitor C 3, capacitor C 4;
The first pin of described chip U1 is connected with the positive pole of charger positive pole, lithium ion power supply positive pole, described capacitor C 3, and be connected with the 39 pin of described chip U2, for powering to described chip U2, the crus secunda of described chip U1 is connected with negative pole, the negative pole of the 4th electric capacity, the earth terminal of charger negative pole, power cathode, the 3rd electric capacity, and the tripod of described chip U1 is connected with the tenth pin of the resistance R 1 in the positive pole of described capacitor C 4, described reset circuit, described chip U2, the 30 pin and the hummer T1 of described chip U2.
Wherein, reset circuit comprises: resistance R 1, capacitor C 6, capacitor C 7 and switch S 1;
One end of described resistance R 1 is connected with the 9th pin of one end of described switch S 1, the positive pole of described capacitor C 6, the positive pole of described capacitor C 7, described chip U2, and the negative pole of the other end of described switch S 1, the negative pole of described capacitor C 6, described capacitor C 7 is connected with earth terminal.
Wherein, crystal oscillating circuit comprises: crystal oscillator Y1, capacitor C 1 and capacitor C 2;
The first pin of described crystal oscillator Y1 is connected with the 12 pin of described chip U2, the positive pole of described capacitor C 2, the crus secunda of described crystal oscillator Y1 is connected with the tenth tripod of described chip U2, the positive pole of described capacitor C 1, and the negative pole of described capacitor C 1 is all connected with earth terminal with the negative pole of described capacitor C 2.
Correspondingly, the present invention also provides a kind of lighting device, comprise: electric quantity of power supply testing circuit, described electric quantity of power supply testing circuit comprises: chip U2, power supply, reset circuit, on-off circuit, mu balanced circuit and crystal oscillating circuit, described reset circuit is connected with the 9th pin of described chip U2, for the electrification reset of described electric quantity of power supply testing circuit, described on-off circuit is connected with the 14 pin of described chip U2, for controlling the switch of described electric quantity display circuit, described mu balanced circuit is connected with the 39 pin of described chip U2, be used for keeping output voltage stabilization, also comprise:
Electric quantity test circuit, for cutting off the electricity supply and report to the police during lower than preset value at described power supply dump energy;
Electric quantity display circuit, for showing the dump energy of described power supply;
Wherein, press after the switch of described on-off circuit, described electric quantity display circuit automatically shows the dump energy of described power supply, if the dump energy of described power supply lower than preset value, described electric quantity test circuitry cuts power supply reporting to the police.
The beneficial effect of the embodiment of the present invention is: electric quantity of power supply testing circuit of the present invention and have the lighting device of this electric quantity of power supply testing circuit, can be at the dump energy of power supply during lower than preset value, automatic cut-off power is also reported to the police, simultaneously, can be according to user's needs, the dump energy of display power supply in real time, improves power source life.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is electric quantity of power supply testing circuit structural representation of the present invention;
Fig. 2 is electric quantity test electrical block diagram of the present invention;
Fig. 3 is electric quantity display circuit structural representation of the present invention;
Fig. 4 is on-off circuit structural representation of the present invention;
Fig. 5 is voltage regulator circuit structure schematic diagram of the present invention;
Fig. 6 is reset circuit structural representation of the present invention;
Fig. 7 is crystal oscillating circuit structural representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, it is electric quantity of power supply testing circuit structural representation of the present invention, electric quantity of power supply testing circuit of the present invention comprises: power supply, reset circuit, on-off circuit, mu balanced circuit and crystal oscillating circuit, reset circuit is connected with the 9th pin of chip U2, for the electrification reset of electric quantity of power supply testing circuit, on-off circuit is connected with the 14 pin of chip U2, for controlling the switch of electric quantity display circuit, mu balanced circuit is connected with the 39 pin of chip U2, be used for keeping output voltage stabilization, electric quantity of power supply testing circuit also comprises:
Electric quantity test circuit, for cutting off the electricity supply and report to the police during lower than preset value at power supply dump energy;
Electric quantity display circuit, for showing the dump energy of described power supply;
Wherein, press after the switch of on-off circuit, the dump energy of the automatic display power supply of electric quantity display circuit, if the dump energy of power supply lower than preset value, electric quantity test circuitry cuts power supply and report to the police.
Referring to Fig. 2, is electric quantity test electrical block diagram of the present invention, and electric quantity test circuit of the present invention comprises:
One end of hummer T1 is connected with the tripod of voltage transformation module U1, the other end of hummer T1 is connected with the collector of switching tube Q1, the base stage of switching tube Q1 is connected with the 40 pin of chip U2, and chip U2 is for the open and close of gauge tap pipe Q1, the grounded emitter of switching tube Q1.The present embodiment warning circuit is connected with the voltage transformation module U1 in test circuit, at power supply dump energy during lower than preset value, and alarm, preset value is User Defined.
Referring to Fig. 3, is electric quantity display circuit structural representation of the present invention, and electric quantity display circuit comprises charactron, and charactron is two seven segment digital tubes.
What need to know is, the section of charactron selects pin a to be connected with the 22 pin of chip U2, the section of charactron selects pin b to be connected with the 20 tripod of chip U2, the section of charactron selects pin c to be connected with the 24 pin of chip U2, the section of charactron selects pin d to be connected with the 25 pin of chip U2, the section of charactron selects pin e to be connected with the 26 pin of chip U2, the section of charactron selects pin f to be connected with the 27 pin of chip U2, the section of charactron selects pin g to be connected with the 20 octal of chip U2, the section of charactron selects pin DP to be connected with the 29 pin of chip U2, the position of charactron selects pin A1 to be connected with the 15 pin of chip U2, the position of charactron selects pin A2 to be connected with the 16 pin of chip U2.
When user presses the on & off switch of on-off circuit, the dump energy that the charactron of display circuit can accurate display power supply.
Referring to Fig. 4, is on-off circuit structural representation of the present invention, and on-off circuit of the present invention is for controlling the switch of electric quantity display circuit, and one end of the switch S 2 of on-off circuit of the present invention is connected with the 14 pin of chip U2, other end ground connection.
On-off circuit of the present invention is used for controlling electric quantity display circuit, in the time that user presses the on & off switch of on-off circuit, and the dump energy that the charactron of display circuit can accurate display power supply.
Refer to Fig. 5, it is voltage regulator circuit structure schematic diagram of the present invention, mu balanced circuit of the present invention comprises: the first pin of chip U1 and charger positive pole, lithium ion power supply positive pole, the positive pole of capacitor C 3 is connected, and be connected with the 39 pin of chip U2, for powering to chip U2, the crus secunda of chip U1 and charger negative pole, power cathode, the negative pole of the 3rd electric capacity, the negative pole of the 4th electric capacity, earth terminal is connected, the positive pole of the tripod of chip U1 and capacitor C 3 and capacitor C 4, resistance R 1 in reset circuit, the tenth pin of chip U2, the 30 pin of chip U2 and hummer T1 are connected.
Mu balanced circuit of the present invention is used for providing galvanic current source.
Referring to Fig. 6, is reset circuit structural representation of the present invention, and reset circuit of the present invention comprises:
One end of resistance R 1 is connected with the 9th pin of one end of switch S 2, the positive pole of capacitor C 6, the positive pole of capacitor C 7, described chip U2, and the negative pole of the other end of switch S 2, the negative pole of capacitor C 6, capacitor C 7 is connected with earth terminal.Reset circuit of the present invention is carried out reset function for chip U2.
Referring to Fig. 7, is crystal oscillating circuit structural representation of the present invention, and crystal oscillating circuit of the present invention comprises:
The first pin of crystal oscillator Y1 is connected with the 12 pin of chip U2, the positive pole of capacitor C 2, and the crus secunda of described crystal oscillator Y1 is connected with the tenth tripod of chip U2, the positive pole of capacitor C 1, and the negative pole of described capacitor C 1 is all connected with earth terminal with the negative pole of capacitor C 2.Crystal oscillating circuit of the present invention provides the signal source of fixed frequency for chip U2.
Should be appreciated that chip U1 of the present invention is LM7805 three-terminal voltage-stabilizing power supply, 5V voltage can be provided, the AVR single-chip microcomputer that chip U2 is low-power consumption, the single-chip microcomputer that preferably model is Atmega16.
PA0 is connected with the base stage b of switching tube Q1, and PA1 is used to input voltage to carry out A/D conversion, and charactron 7AEG of the present invention is two seven segment digital tubes, the section bit selecting that PC0-PC7 is charactron, the position bit selecting that PD1 and PD2 are charactron.
Power supply of the present invention is lithium ion battery, and BT+ and BT-be positive and negative electrode respectively, and C3, C4 and C5 are filter capacitor, and Q1 is switching tube, for driving hummer T1.
The principle of work of electric quantity of power supply testing circuit of the present invention is: this circuit comprises following part: Single Chip Microcomputer (SCM) system (comprising: reset circuit, crystal oscillating circuit, power supply and GND earth terminal), mu balanced circuit, display circuit.After monolithic system initialization, carry out voltage detecting, when Uin >=Uref(establishes Uref=5V) time, PD0 exports high level, now press switch S 2, charactron shows the dump energy of current power supply, Closing Switch S2 charactron is closed, for example, when charactron be shown as 10 be real-time electric weight be Full Charge Capacity 10% time, PA0 exports high level, Q1 conducting, the hummer T1 warning that pipes, reminding user charges in time, when Uin<Uref(establishes Uref=5V) time, Single Chip Microcomputer (SCM) system is not worked, and now presses switching tube S1, and Single Chip Microcomputer (SCM) system resets.
Correspondingly, the present invention also provides a kind of lighting device, comprises electric quantity of power supply testing circuit, and electric quantity of power supply testing circuit comprises: power supply, reset circuit, on-off circuit, mu balanced circuit and crystal oscillating circuit, and electric quantity of power supply testing circuit also comprises:
Electric quantity test circuit, for cutting off the electricity supply and report to the police during lower than preset value at power supply dump energy;
Electric quantity display circuit, for the dump energy of display power supply;
Wherein, press after the switch of on-off circuit, the dump energy of the automatic display power supply of electric quantity display circuit, if the dump energy of power supply lower than preset value, electric quantity test circuitry cuts power supply and report to the police.
Electric quantity of power supply testing circuit of the present invention and have the lighting device of this electric quantity of power supply testing circuit, can be at the dump energy of power supply during lower than preset value, and automatic cut-off power is also reported to the police, meanwhile, can be according to user's needs, the dump energy of display power supply in real time.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (9)
1. an electric quantity of power supply testing circuit, it is characterized in that, comprise: chip U2, power supply, reset circuit, on-off circuit, mu balanced circuit and crystal oscillating circuit, described reset circuit is connected with the 9th pin of described chip U2, for the electrification reset of described electric quantity of power supply testing circuit, described on-off circuit is connected with the 14 pin of described chip U2, for controlling the switch of described electric quantity display circuit, described mu balanced circuit is connected with the 39 pin of described chip U2, be used for keeping output voltage stabilization, described crystal oscillating circuit is connected with the tenth tripod with the 12 pin of described chip U2, be used to described chip U2 that the signal source of fixed frequency is provided, also comprise:
Electric quantity test circuit, is connected with the 40 pin of described chip U2, for cutting off the electricity supply and report to the police during lower than preset value at described power supply dump energy;
Electric quantity display circuit, is connected with described chip U2, for showing the dump energy of described power supply;
Wherein, press after the switch of described on-off circuit, described electric quantity display circuit automatically shows the dump energy of described power supply, if the dump energy of described power supply lower than preset value, described electric quantity test circuitry cuts power supply reporting to the police.
2. electric quantity of power supply testing circuit as claimed in claim 1, is characterized in that, described electric quantity test circuit comprises: hummer T1, voltage transformation module U1, chip U2 and switching tube Q1;
One end of described hummer T1 is connected with the tripod of described voltage transformation module U1, the other end of described hummer T1 is connected with the collector of described switching tube Q1, the base stage of described switching tube Q1 is connected with the 40 pin of described chip U2, described chip U2 is for controlling the open and close of described switching tube Q1, the grounded emitter of described switching tube Q1.
3. electric quantity of power supply testing circuit as claimed in claim 1, is characterized in that, described electric quantity display circuit comprises charactron, and described charactron is two seven segment digital tubes.
4. electric quantity of power supply testing circuit as claimed in claim 3, is characterized in that,
The section of described charactron selects pin a to be connected with the 22 pin of chip U2;
The section of described charactron selects pin b to be connected with the 20 tripod of chip U2;
The section of described charactron selects pin c to be connected with the 24 pin of chip U2;
The section of described charactron selects pin d to be connected with the 25 pin of chip U2;
The section of described charactron selects pin e to be connected with the 26 pin of chip U2;
The section of described charactron selects pin f to be connected with the 27 pin of chip U2;
The section of described charactron selects pin g to be connected with the 20 octal of chip U2;
The section of described charactron selects pin DP to be connected with the 29 pin of chip U2;
The position of described charactron selects pin A1 to be connected with the 15 pin of chip U2;
The position of described charactron selects pin A2 to be connected with the 16 pin of chip U2.
5. electric quantity of power supply testing circuit as claimed in claim 1, is characterized in that, described on-off circuit comprises: switch S 2;
One end of described switch S 2 is connected with the 14 pin of chip U2, the other end ground connection of described switch S 2.
6. electric quantity of power supply testing circuit as claimed in claim 1, is characterized in that, described mu balanced circuit comprises: chip U1, capacitor C 3, capacitor C 4;
The first pin of described chip U1 is connected with the positive pole of charger positive pole, lithium ion power supply positive pole, described capacitor C 3, and be connected with the 39 pin of described chip U2, for powering to described chip U2, the crus secunda of described chip U1 is connected with negative pole, the negative pole of the 4th electric capacity, the earth terminal of charger negative pole, power cathode, the 3rd electric capacity, and the tripod of described chip U1 is connected with the tenth pin of the resistance R 1 in the positive pole of described capacitor C 4, described reset circuit, described chip U2, the 30 pin and the hummer T1 of described chip U2.
7. electric quantity of power supply testing circuit as claimed in claim 1, is characterized in that, described reset circuit comprises: resistance R 1, capacitor C 6, capacitor C 7 and switch S 1;
One end of described resistance R 1 is connected with the 9th pin of one end of described switch S 1, the positive pole of described capacitor C 6, the positive pole of described capacitor C 7, described chip U2, and the negative pole of the other end of described switch S 1, the negative pole of described capacitor C 6, described capacitor C 7 is connected with earth terminal.
8. electric quantity of power supply testing circuit as claimed in claim 1, is characterized in that, described crystal oscillating circuit comprises: crystal oscillator Y1, capacitor C 1 and capacitor C 2;
The first pin of described crystal oscillator Y1 is connected with the 12 pin of described chip U2, the positive pole of described capacitor C 2, the crus secunda of described crystal oscillator Y1 is connected with the tenth tripod of described chip U2, the positive pole of described capacitor C 1, and the negative pole of described capacitor C 1 is all connected with earth terminal with the negative pole of described capacitor C 2.
9. a lighting device, it is characterized in that, comprise: electric quantity of power supply testing circuit, described electric quantity of power supply testing circuit comprises: chip U2, power supply, reset circuit, on-off circuit, mu balanced circuit and crystal oscillating circuit, described reset circuit is connected with the 9th pin of described chip U2, for the electrification reset of described electric quantity of power supply testing circuit, described on-off circuit is connected with the 14 pin of described chip U2, for controlling the switch of described electric quantity display circuit, described mu balanced circuit is connected with the 39 pin of described chip U2, be used for keeping output voltage stabilization, described crystal oscillating circuit is connected with the tenth tripod with the 12 pin of described chip U2, be used to described chip U2 that the signal source of fixed frequency is provided, also comprise:
Electric quantity test circuit, is connected with the 40 pin of described chip U2, for cutting off the electricity supply and report to the police during lower than preset value at described power supply dump energy;
Electric quantity display circuit, is connected with described chip U2, for showing the dump energy of described power supply;
Wherein, press after the switch of described on-off circuit, described electric quantity display circuit automatically shows the dump energy of described power supply, if the dump energy of described power supply lower than preset value, described electric quantity test circuitry cuts power supply reporting to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310096034.0A CN104062592A (en) | 2013-03-22 | 2013-03-22 | Power quantity detection circuit and lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310096034.0A CN104062592A (en) | 2013-03-22 | 2013-03-22 | Power quantity detection circuit and lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104062592A true CN104062592A (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310096034.0A Pending CN104062592A (en) | 2013-03-22 | 2013-03-22 | Power quantity detection circuit and lighting device |
Country Status (1)
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| CN (1) | CN104062592A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292975A (en) * | 2015-06-23 | 2017-01-04 | 精工爱普生株式会社 | Voltage detection circuit, conductor integrated circuit device and electronic equipment |
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| CN106292975B (en) * | 2015-06-23 | 2020-12-29 | 精工爱普生株式会社 | Power supply voltage detection circuit, semiconductor integrated circuit, and electronic device |
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Application publication date: 20140924 |