CN103490473A - Battery power supply device of intelligent instrument - Google Patents
Battery power supply device of intelligent instrument Download PDFInfo
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- CN103490473A CN103490473A CN201310441851.5A CN201310441851A CN103490473A CN 103490473 A CN103490473 A CN 103490473A CN 201310441851 A CN201310441851 A CN 201310441851A CN 103490473 A CN103490473 A CN 103490473A
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- battery
- linear voltage
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- voltage stabilization
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Abstract
The invention discloses a battery power supply device of an intelligent instrument. The battery power supply device comprises a battery, a first linear voltage stabilizing chip, a second linear voltage stabilizing chip, a voltage monitoring chip, a power storage device and a microprocessor, wherein a power supply is connected with the input end of the first linear voltage stabilizing chip, the first linear voltage stabilizing chip and the second linear voltage stabilizing chip are connected in a cascade mode, the output end of a first linear voltage stabilizer is connected with the power storage device, and the microprocessor is connected with the output end of the first linear voltage stabilizing chip and the output end of the second linear voltage stabilizing chip, and connected with the positive electrode of the power supply through the voltage monitoring chip. By the adoption of the battery power supply device, the instrument is stable and reliable in working power supply, the defect that in the power supply mode of an existing instrument, the power supply voltage fluctuates with the battery voltage is overcome, and therefore a follow-up circuit of the whole instrument is stable and safe in work. Users can replace the battery by themselves and can conveniently use the battery power supply device.
Description
Technical field
The present invention relates to the intelligent instrument field, relate in particular to a kind of battery powdered device of intelligent instrument.
Background technology
What on intellectual water meter, calorimeter, gas meter, flow meter, generally adopt at present is the supply power mode of disposable lithium cell as main power source, and there is following significantly shortcoming in this supply power mode:
1. power unit does not have the voltage stabilizing measure, and supply power voltage is with the battery discharge voltage fluctuation, and the voltage of supplying with subsequent conditioning circuit changes between 2.0V at 3.6V, is unfavorable for the steady operation of subsequent conditioning circuit;
2. battery, due to the dispersiveness in manufacture process, can't guarantee that battery capacity all reaches the ampere-hour number of demarcation, and just appearance is without electric phenomenon afterwards using 1 year to cause the part instrument, and can't reach the specification requirement of 5+1 useful life;
3. owing to not considering in use to change at any time battery, cell sealing is in plastic meter shell, under installment state, can't change, after instrument must being removed, the disintegration instrument, can change battery, and tear open table temporarily the total lock of Guan cut off the water in (gas), waste time and energy and affect user's normal use;
4. owing to adopting the specialized lithium battery, market is without selling, and the user can't self-changeable, must be changed by the professional of Watch Factory or administration departments, and the property maintenance workload is large and must within 24 hours, uninterruptedly have the people on duty;
5. the supply power mode of minority Instrument use three to four joint AA batteries as the power supply main power source also arranged, but standby and protection problem when not thorough consideration voltage stabilizing and suddenly outage, and the multiple batteries power supply brings battery to close the too huge and problem wasting of resources.
Summary of the invention
In order to address the above problem, the invention provides a kind of battery powdered device of intelligent instrument, comprise battery, the first linear voltage stabilization chip, the second linear voltage stabilization chip, electric storage device, wherein said power supply connects the input of the first linear voltage stabilization chip; The first linear voltage stabilization chip, the second linear voltage stabilization chip cascade connect, and the output of described the first linear voltage regulator connects electric storage device.Said apparatus also comprises microprocessor, monitoring voltage chip, described microprocessor connects the output of the first linear voltage stabilization chip, the second linear voltage stabilization chip, described monitoring voltage chip input connects positive source, and described monitoring voltage chip output connects microprocessor.The voltage of described battery is 9V, and the voltage of described electric storage device is 5V, and described the second linear voltage stabilization chip output voltage is 3.3V.
Adopt the present invention, the instrumentation power supply is reliable and stable, has overcome the drawback of existing instrument power supply mode supply power voltage with the cell voltage fluctuation, makes the subsequent conditioning circuit stable working safety of whole instrument; But user's self-changeable battery, be user-friendly to, even if the special occasion such as just have a bath, cook night, festivals or holidays, user, also self-changeable battery easily, and do not need Watch Factory or infrastructure management company to send the special messenger to change, brought facility to use.
The accompanying drawing explanation
Fig. 1 is circuit theory schematic diagram of the present invention.
Embodiment
Below the present invention is described in detail.
Be these circuit theory diagrams as described in Figure 1, mainly comprise battery, the first linear voltage stabilization chip, the second linear voltage stabilization chip, electric storage device.
Described power supply connects the input of the first linear voltage stabilization chip; The first linear voltage stabilization chip, the second linear voltage stabilization chip cascade connect, and the output of described the first linear voltage regulator also connects electric storage device.
Wherein, the output of the second linear voltage stabilization chip is the main power source to instrument power supply, owing to adopting the secondary voltage stabilizing and installing the storage point apparatus additional, has guaranteed the instrument voltage stabilization.
It should be noted that, generally speaking, when existing instrument employing is of the present invention, the voltage of battery is 9V, and the voltage of described electric storage device is 5V, and described the second linear voltage stabilization chip output voltage is 3.3V.The main power voltage that wherein 3.3V is instrument.Certainly, do not get rid of and adopt the specific (special) requirements of instrument of the present invention to voltage.
Further, the present invention also comprises microprocessor and monitoring voltage chip.Described microprocessor connects the output of the first linear voltage stabilization chip, the second linear voltage stabilization chip, and described monitoring voltage chip input connects positive source, and described monitoring voltage chip output connects microprocessor.
Above-mentioned microprocessor and monitoring voltage chip are realized the supervision to the voltage status of battery, electric storage device, two linear voltage stabilization chip outputs, and can realize the emergency processing under the abnormal condition such as outage suddenly, electric storage device less power, battery low-voltage according to each voltage status, and ensureing data security and reliable, the by-pass valve control state makes it all the time in tram simultaneously.
The present invention adopt two-stage linear voltage stabilization concatenation technology and install additional electric storage device as the energy storage back-up source to instrument power supply.This can make the instrumentation power supply reliable and stable, has overcome the drawback of existing instrument power supply mode supply power voltage with the cell voltage fluctuation, makes the subsequent conditioning circuit stable working safety of whole instrument.And utilize software power in microprocessor and two-stage voltage stabilizing to add the hardware such as energy storage device and coordinate, make the instrument power supply power unit realize intellectuality, the lifting of matter that made the power supply quality of instrument and reliable realization.
Further, battery of the present invention adopts the 9V layer-built battery.A 9V layer-built battery, with respect to the battery powered instrument of more piece AA, has reduced the use amount of battery more than 1/3, energy-conserving and environment-protective.
Further, energy storage device of the present invention adopts farad capacitor, realizes quick charge and better service life cycle, and reduces the complex circuit designs degree.Anodal the first linear voltage stabilization chip output, the minus earth of connecting of described farad capacitor.Certainly, electric storage device of the present invention also can adopt other to have the device of charge storage ability.
In addition; as another contribution of the present invention; for preventing impact and the destruction on instrument of artificial destruction and other unpredictalbe high voltages; be provided with protective circuit in the loop of battery and the first linear voltage stabilization chip; be specially: in the loop of battery and the first linear voltage stabilization chip formation; be provided with the hot protective resistance of overvoltage; hot protective resistance one end of described overvoltage connects positive source; the other end connects the first linear voltage stabilization chip input, monitoring voltage chip input, and by lightning protection bidirectional diode ground connection.Certainly, the hot protective resistance of overvoltage, lightning protection bidirectional diode can be used separately as required.
Especially it should be noted that, use instrument of the present invention battery case to be installed in outside, battery can be placed in battery case, facilitates the client to change battery.
In sum, the advantage of supply power mode of the present invention is:
1. the instrumentation power supply is reliable and stable, has overcome the drawback of existing instrument power supply mode supply power voltage with the cell voltage fluctuation, makes the subsequent conditioning circuit stable working safety of whole instrument;
2. but user's self-changeable battery, be user-friendly to, even if the special occasion such as just have a bath, cook night, festivals or holidays, user, also self-changeable battery easily, and do not need Watch Factory or infrastructure management company to send the special messenger to change, brought revolutionary facility to use;
3. utilize software power in MCU and two-stage voltage stabilizing to add the hardware such as inner energy storage and coordinate, make the instrument power supply power unit realize intellectuality, the lifting of matter that made the power supply quality of instrument and reliable realization; 4. a 9V battery, with respect to the battery powered instrument of more piece AA, has reduced the use amount of battery more than 1/3, belongs to energy saving and environment friendly design.
5. power unit adopts the Low-power Technology design, and overall power is less than 10 microamperes, can greatly extend the useful life of battery.
Claims (8)
1. the battery powdered device of an intelligent instrument, is characterized in that: comprise battery, the first linear voltage stabilization chip, the second linear voltage stabilization chip, electric storage device, wherein
Described power supply connects the input of the first linear voltage stabilization chip; The first linear voltage stabilization chip, the second linear voltage stabilization chip cascade connect, and the output of described the first linear voltage regulator connects electric storage device.
2. the battery powdered device of a kind of intelligent instrument as claimed in claim 1, it is characterized in that: also comprise microprocessor, monitoring voltage chip, described microprocessor connects the output of the first linear voltage stabilization chip, the second linear voltage stabilization chip, described monitoring voltage chip input connects positive source, and described monitoring voltage chip output connects microprocessor.
3. the battery powdered device of a kind of intelligent instrument as claimed in claim 1 or 2, it is characterized in that: the voltage of described battery is 9V, and the voltage of described electric storage device is 5V, and described the second linear voltage stabilization chip output voltage is 3.3V.
4. the battery powdered device of a kind of intelligent instrument as claimed in claim 3, it is characterized in that: described battery is the 9V layer-built battery.
5. the battery powdered device of a kind of intelligent instrument as claimed in claim 1, it is characterized in that: described electric storage device is farad capacitor, described farad capacitor minus earth.
6. as the battery powdered device of the described a kind of intelligent instrument of any one in claim 1,2,4,5, it is characterized in that: in the loop of battery and the first linear voltage stabilization chip formation, be provided with the lightning protection bidirectional diode, described lightning protection bidirectional diode one end connects positive source, an end ground connection.
7. as the battery powdered device of the described a kind of intelligent instrument of any one in claim 1,2,4,5, it is characterized in that: between battery and the first linear voltage stabilization chip input, be provided with the hot protective resistance of overvoltage.
8. the battery powdered device of a kind of intelligent instrument as claimed in claim 7; it is characterized in that: in the loop of battery and the first linear voltage stabilization chip formation, also be provided with the lightning protection bidirectional diode; described lightning protection bidirectional diode connects positive source, an end ground connection by the hot protective resistance of overvoltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441851.5A CN103490473A (en) | 2013-09-26 | 2013-09-26 | Battery power supply device of intelligent instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441851.5A CN103490473A (en) | 2013-09-26 | 2013-09-26 | Battery power supply device of intelligent instrument |
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| Publication Number | Publication Date |
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| CN103490473A true CN103490473A (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310441851.5A Pending CN103490473A (en) | 2013-09-26 | 2013-09-26 | Battery power supply device of intelligent instrument |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5661372A (en) * | 1994-05-02 | 1997-08-26 | Olympus Optical Co., Ltd. | Stroboscopic instrument having a gate-controlled-switching element and a step-up power means therefor |
| US20090153108A1 (en) * | 2007-12-17 | 2009-06-18 | Neil Hendin | Power management efficiency using DC-DC and linear regulators in conjunction |
| CN102522893A (en) * | 2011-12-15 | 2012-06-27 | 杨长存 | Novel power supply circuit |
| CN203536998U (en) * | 2013-09-26 | 2014-04-09 | 四川泰力智能仪表科技有限公司 | Battery power supply device for intelligent instrument |
-
2013
- 2013-09-26 CN CN201310441851.5A patent/CN103490473A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5661372A (en) * | 1994-05-02 | 1997-08-26 | Olympus Optical Co., Ltd. | Stroboscopic instrument having a gate-controlled-switching element and a step-up power means therefor |
| US20090153108A1 (en) * | 2007-12-17 | 2009-06-18 | Neil Hendin | Power management efficiency using DC-DC and linear regulators in conjunction |
| CN102522893A (en) * | 2011-12-15 | 2012-06-27 | 杨长存 | Novel power supply circuit |
| CN203536998U (en) * | 2013-09-26 | 2014-04-09 | 四川泰力智能仪表科技有限公司 | Battery power supply device for intelligent instrument |
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Application publication date: 20140101 |