CN106569133A - Low voltage alarm circuit - Google Patents

Low voltage alarm circuit Download PDF

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Publication number
CN106569133A
CN106569133A CN201510670851.1A CN201510670851A CN106569133A CN 106569133 A CN106569133 A CN 106569133A CN 201510670851 A CN201510670851 A CN 201510670851A CN 106569133 A CN106569133 A CN 106569133A
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CN
China
Prior art keywords
circuit
voltage
temperature
resistance
alarm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510670851.1A
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Chinese (zh)
Inventor
周明杰
孙轶徽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
Original Assignee
Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oceans King Lighting Science and Technology Co Ltd, Oceans King Dongguan Lighting Technology Co Ltd, Shenzhen Oceans King Lighting Engineering Co Ltd filed Critical Oceans King Lighting Science and Technology Co Ltd
Priority to CN201510670851.1A priority Critical patent/CN106569133A/en
Publication of CN106569133A publication Critical patent/CN106569133A/en
Pending legal-status Critical Current

Links

Abstract

Embodiments of the invention disclose a low voltage alarm circuit. The circuit comprises a voltage acquisition circuit, a temperature detection circuit, a temperature compensating circuit and an alarm circuit, wherein two input terminals of the voltage acquisition circuit are connected to an anode and a cathode of a cell respectively; a power supply input terminal of the temperature detection circuit is connected to a work voltage; a first input terminal of the temperature compensating circuit is connected to an output terminal of the voltage acquisition circuit, a second input terminal of the temperature compensating circuit is connected to an output terminal of the temperature detection circuit, and a power supply input terminal of the temperature compensating circuit is connected to the work voltage; and a power supply input terminal of the alarm circuit is connected to the work voltage, and the alarm circuit is connected to an output terminal of the temperature compensating circuit and is used for sending an alarm prompt according to an alarm signal. In the invention, when a voltage of the cell is low, alarm prompting can be timely and accurately performed.

Description

A kind of low-voltage alarm circuit
Technical field
The present invention relates to circuit field, and in particular to a kind of low-voltage alarm circuit.
Background technology
Stand-by power supply is the independent current source that the main power source of work interrupts or can come into operation when inadequate, when main electricity Source need to be transformed into stand-by power supply in when having a power failure.When circuit system work out of doors, standby electricity Source is generally battery, and now, the electricity of battery is to ensure that circuit system is capable of the key of normal work.
At present, mainly by the normal work for increasing the electricity of stand-by power supply to ensure circuit system, but this Do not ensure that battery electric quantity is not depleted, and in the case where dead battery capability is undiscovered, will make Obtain the unexpected power-off of equipment and make troubles, out of doors (Light Emitting Diode send out using LED such as evening Optical diode) lamp when, if in the case where reserve battery electricity exhausts but without in time discovery, from And be less convenient for changing reserve battery and make troubles to outdoor activities.
The content of the invention
A kind of low-voltage alarm circuit is embodiments provided, to can be timely when cell voltage is too low Carry out alarm.
Embodiment of the present invention first aspect provides a kind of low-voltage alarm circuit, including:
Voltage collection circuit, two inputs of the voltage collection circuit are connected respectively with the both positive and negative polarity of battery, For gathering the voltage of the battery and exporting;
Temperature sensing circuit, the power input termination running voltage of the temperature sensing circuit, for detecting State the current temperature value of battery place environment and export;
Temperature-compensation circuit, the first input end of the temperature-compensation circuit is defeated with the voltage collection circuit Go out end connection, the second input of the temperature-compensation circuit is connected with the outfan of the temperature sensing circuit, The temperature-compensation circuit power input termination running voltage, for according to the current temperature value to described The voltage of battery does temperature-compensating to be compensated voltage, and in the offset voltage less than or equal to default electricity Output alarm signal during pressure value;
Warning circuit, the warning circuit power input termination running voltage, the warning circuit with it is described The outfan connection of temperature-compensation circuit, for sending alarm according to the alarm signal.
Wherein, the voltage collection circuit includes:
First resistor and second resistance, the positive pole of the termination battery of the first resistor, described first The other end of resistance is connected with one end of the second resistance, the other end ground connection of the second resistance, described The common port of first resistor and the second resistance is the outfan of the voltage collection circuit, for described The voltage of battery carries out partial pressure.
Wherein, the temperature sensing circuit includes:
Temperature sensor and 3rd resistor, the power input of the temperature sensor is temperature detection electricity The power input termination running voltage on road, the power supply ground terminal ground connection of the temperature sensor, the 3rd resistor Two ends connect with the power input of the temperature sensor and outfan respectively.
Wherein, the warning circuit includes:
4th resistance, the 5th resistance, the first diode and the second diode;
Wherein, the positive pole connection of one end of the 4th resistance and first diode, the 4th resistance The other end and the 5th resistance one end connection, be the warning circuit the work of power input termination electricity Pressure, the other end of the 5th resistance and the positive pole connection of second diode, second diode The outfan connection of negative pole and the temperature-compensation circuit, for receiving the report of the temperature-compensation circuit output Alert signal.
Wherein, the temperature-compensation circuit includes single-chip microcomputer and the 6th resistance, the model of the single-chip microcomputer Atmega88, the simulation benchmark input pin of the single-chip microcomputer is connected with the outfan of the temperature sensor, The input pin of the 6th analog-digital converter of the single-chip microcomputer is connected with the outfan of the voltage collection circuit, First two directions' inputing output pin of the single-chip microcomputer is connected with the input of the warning circuit, the monolithic The reset input pin of machine is connected with one end of the 6th resistance, and the other end of the 6th resistance is described The power input termination running voltage of temperature-compensation circuit, the power supply ground pin ground connection of the single-chip microcomputer.
Wherein, the temperature sampling sensor is DS18B20 digital temperature sensors.
Wherein, second diode is photodiode.
Implement the embodiment of the present invention, have the advantages that:By gathering cell voltage and detection battery The current temperature value of place environment, according to current temperature value temperature-compensating is done to cell voltage, and in compensation electricity Low pressure alarming is carried out when pressure is less than or equal to preset voltage value, such that it is able to accurate in time when cell voltage is relatively low Really carry out alarm.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to implementing Example or the accompanying drawing to be used needed for description of the prior art are briefly described, it should be apparent that, describe below In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying On the premise of going out creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of the first embodiment of low-voltage alarm circuit provided in an embodiment of the present invention;
Fig. 2 is the structural representation of the second embodiment of low-voltage alarm circuit provided in an embodiment of the present invention;
Fig. 3 is the structural representation of the 3rd embodiment of low-voltage alarm circuit provided in an embodiment of the present invention;
Fig. 4 is the structural representation of the fourth embodiment of low-voltage alarm circuit provided in an embodiment of the present invention;
Fig. 5 is the structural representation of the 5th embodiment of low-voltage alarm circuit provided in an embodiment of the present invention.
Specific embodiment
A kind of low-voltage alarm circuit is embodiments provided, to can be timely when cell voltage is too low Carry out alarm.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with present invention enforcement Accompanying drawing in example, is clearly and completely described, it is clear that institute to the technical scheme in the embodiment of the present invention The embodiment of description is only the embodiment of a present invention part, rather than the embodiment of whole.Based on this Embodiment in bright, the institute that those of ordinary skill in the art are obtained under the premise of creative work is not made There is other embodiment, should all belong to the scope of protection of the invention.
Term " first ", " second " in description and claims of this specification and above-mentioned accompanying drawing and " Three " it is etc. for distinguishing different objects, not for description particular order.Additionally, term " including " with And their any deformations, it is intended that cover non-exclusive including.For example contain series of steps or unit Process, method, system, product or equipment be not limited to the step of listing or unit, it is but optional Ground also includes the step of not listing or unit, or alternatively also includes for these processes, method, product Or intrinsic other steps of equipment or unit.
Referring first to Fig. 1, Fig. 1 is the knot of the first embodiment of low-voltage alarm circuit provided in an embodiment of the present invention Structure schematic diagram.Wherein, as shown in figure 1, the low-voltage alarm circuit that first embodiment of the invention is provided includes:
Voltage collection circuit 1, temperature sensing circuit 2, temperature-compensation circuit 3 and warning circuit 4.
Wherein, two inputs of voltage collection circuit 1 are connected respectively with the both positive and negative polarity of battery, for gathering The voltage of the battery is simultaneously exported.
In embodiments of the present invention, in order to gather the voltage of battery, two of voltage collection circuit 1 are input into End is connected to the both positive and negative polarity of battery, then the voltage that voltage collection circuit 1 is accessed is the voltage of battery.
Specifically, the voltage of the output of voltage collection circuit 1 can be the total voltage of battery, or to electricity Cell voltage carries out the later voltage of partial pressure, and voltage collection circuit 1 mends the voltage output for being collected to temperature Repay circuit 3 to be further processed.
Temperature sensing circuit 2, the power input termination running voltage of the temperature sensing circuit 2, for detecting The current temperature value of battery place environment is simultaneously exported.
In embodiments of the present invention, in order to carry out temperature-compensating to the voltage of battery, so needing to detect battery The Current Temperatures of the environment at place, and the Current Temperatures are exported to temperature-compensation circuit 3, it is easy to temperature-compensating Circuit 3 carries out temperature-compensating according to the temperature to cell voltage.
Temperature-compensation circuit 3, the first input end of temperature-compensation circuit 3 and the outfan of voltage collection circuit 1 Connection, the second input of temperature-compensation circuit 3 is connected with the outfan of temperature sensing circuit 2, the temperature Degree compensation circuit 3 power input termination running voltage, for according to the current temperature value to the battery Voltage do temperature-compensating to be compensated voltage, and be less than or equal to preset voltage value in the offset voltage When output alarm signal.
Wherein, temperature-compensating refers to cell voltage is entered in order to reduce impact that temperature changes to cell voltage Capable adjustment, so that cell voltage maintains magnitude of voltage corresponding during room temperature;Preset voltage value refers to use One less magnitude of voltage of family setting, and the output alarm signal when cell voltage is less than the preset voltage value, So as to the voltage for ensureing battery is maintained on preset voltage value.
In embodiments of the present invention, the outfan of temperature-compensation circuit 3 and warning circuit 4 connect, with electricity Output alarm signal is to warning circuit 4 when cell voltage value is less than preset voltage value.
Warning circuit 4, the power input termination running voltage of warning circuit 4, warning circuit 4 and temperature-compensating The outfan connection of circuit 3, for sending alarm according to the alarm signal.
In the first embodiment of the invention, temperature sensing circuit 2, temperature-compensation circuit 3 and warning circuit 4 One input cut-in operation circuit, and ground pin, voltage collection circuit by cell voltage powered operation, Another pin with ground.
In the first embodiment of the invention, when temperature sensing circuit 2, temperature-compensation circuit 3 and warning circuit 4 After cut-in operation voltage, circuit is started working, and the collection of voltage collection circuit 1 needs the cell voltage of detection, And by the voltage output of the battery for collecting to temperature-compensation circuit 3, the detection battery of temperature sensing circuit 2 is located The Current Temperatures of environment, and the Current Temperatures of the environment are exported to temperature-compensation circuit 3, so as to temperature-compensating The voltage and temperature sensing circuit 2 of the battery that circuit 3 is exported according to the outfan of voltage collection circuit 1 is defeated The Current Temperatures for going out carry out temperature-compensating to cell voltage to obtain the offset voltage after temperature-compensating, The offset voltage is judged again whether less than or equal to preset voltage value, in the offset voltage less than or equal to default Output alarm signal carry out after the alarm signal to warning circuit 4 so as to warning circuit 4 is received during magnitude of voltage Report to the police.
The present invention by the voltage of collection battery and the current temperature value of detection battery place environment, according to working as Front temperature value does temperature-compensating to be compensated voltage to the voltage of battery, and is less than or equal in offset voltage Low pressure alarming is carried out during preset voltage value, such that it is able to timely and accurately be reported to the police when cell voltage is relatively low Prompting.
Referring to Fig. 2, Fig. 2 is that the structure of the second embodiment of low-voltage alarm circuit provided in an embodiment of the present invention is shown It is intended to.Wherein, as shown in Fig. 2 Fig. 2 is the specific descriptions to the low-voltage alarm circuit shown in Fig. 1, such as Shown in Fig. 2:
Voltage collection circuit 1 can include first resistor 11 and second resistance 12, one end of first resistor 11 The positive pole of battery is connect, the other end of first resistor 11 is connected with one end of second resistance 12, second resistance 12 Other end ground connection, the common port of first resistor 11 and second resistance 12 for voltage collection circuit 1 output End, for carrying out partial pressure to the voltage of battery.
Specifically, the resistance of first resistor 11 can be 10K ohms, and the resistance of second resistance 12 can be 22K ohms, so as to the voltage that voltage collection circuit 1 is collected is 2/3rds of cell voltage.
Alternatively, voltage collection circuit 1 can also be only with a resistance, so as to voltage collection circuit 1 is adopted The voltage for collecting is the magnitude of voltage of whole battery.
Preferably, in some embodiments of the invention, resistance 11 and resistance 21 can be power resistor.
The embodiment of the present invention can collect the voltage of battery by voltage collection circuit 1, in order to temperature benefit Repay circuit 3 to be further processed using the voltage.
Referring to Fig. 3, Fig. 3 is that the structure of the 3rd embodiment of low-voltage alarm circuit provided in an embodiment of the present invention is shown It is intended to.Wherein, as shown in figure 3, Fig. 3 is the specific descriptions to the low-voltage alarm circuit shown in Fig. 1, such as Shown in Fig. 3:
Temperature sensing circuit 2 can include temperature sensor 21 and 3rd resistor 22, temperature sensor 21 Power input terminates running voltage, the power supply of temperature sensor 21 for the power input of temperature sensing circuit 2 Ground terminal is grounded, and the two ends of 3rd resistor 22 connect respectively with the power input and outfan of temperature sensor 21 Connect.
Wherein, 3rd resistor 22 is a pull-up resistor.
Specifically, when circuit is started working, temperature sensor 21 is positioned in the environment at battery place, from And temperature sensor 21 can sense the current temperature value of battery place environment, and by the current temperature transition Exported to temperature-compensation circuit 3 by outfan for a signal of telecommunication, so that temperature-compensation circuit 3 utilizes the signal It is further processed.
Preferably, in some embodiments of the invention, model DS18B20 of temperature sensor 21, from It is digital temperature signal by the current temperature transition and temperature sensor 21 is sensed after the Current Temperatures of environment, And exported to temperature-compensation circuit 3 by digital signal output end.
Preferably, in some embodiments of the invention, the resistance of 3rd resistor 21 can be 4.7K.
Referring to Fig. 4, Fig. 4 is that the structure of the fourth embodiment of low-voltage alarm circuit provided in an embodiment of the present invention is shown It is intended to.Wherein, as shown in figure 4, Fig. 4 is the specific descriptions to the low-voltage alarm circuit shown in Fig. 1, such as Shown in Fig. 4:
Warning circuit 4 can include:4th resistance 41, the 5th resistance 43, the first diode 42 and second Diode 44;
Wherein, the positive pole connection of one end of the 4th resistance 41 and first diode 42, the described 4th is electric The other end of resistance 41 and one end connection of the 5th resistance 43, are the power input of the warning circuit Meet running voltage, the other end of the 5th resistance 43 and the positive pole connection of second diode 44, institute The negative pole of the second diode 44 and the outfan connection of the temperature-compensation circuit 3 are stated, for receiving the temperature The alarm signal of the degree output of compensation circuit 3.
Wherein, the first diode 42 is relay indicating light, and the second diode 44 is to send the two of alarm signal Pole pipe.
Wherein, the minus earth of the first diode 42.
Preferably, the first diode 42 is photodiode, so as to when warning circuit 4 is started working, the One diode 42 lights, indication circuit conducting, starts working.
Preferably, the second diode 44 is photodiode, when receiving the report that temperature-compensation circuit 3 sends Alarm can be carried out by optical signal during alert signal.
Specifically, when circuit is started working, the 4th resistance 41 of warning circuit and the institute of the first diode 42 The branch road conducting of connection, so as to the first diode 42 sends relay indicating light, when the negative pole of the second diode connects After receiving the low pressure alarming signal of the output of temperature-compensation circuit 3, the 5th resistance 43 and the institute of the second diode 44 The branch road conducting of connection, warning circuit 4 carries out alarm by the second diode 44, so as to low pressure alarming Circuit can in time be pointed out, so as to timely when the low pressure of power supply is detected by warning circuit 4 It was found that whether cell voltage is not enough.
Preferably, the resistance of the 4th resistance 41 and the 5th resistance 43 is 511 ohm.
Referring to Fig. 5, Fig. 5 is that the structure of the 5th embodiment of low-voltage alarm circuit provided in an embodiment of the present invention is shown It is intended to.
As shown in figure 5, the low-voltage alarm circuit includes voltage collection circuit 1, temperature sensing circuit 2, temperature Compensation circuit 3 and warning circuit 4.Wherein, voltage collection circuit 1 includes resistance R1 and resistance R2, temperature Detection circuit 2 includes resistance R3 and temperature sensor T, and temperature-compensation circuit 3 includes single-chip microcomputer 31 and electricity Resistance R6, wherein, model Atmega88 of single-chip microcomputer 31, warning circuit 4 includes resistance R4, diode V1, resistance R5 and diode V2,.
Wherein, in voltage collection circuit 1, resistance R1 and resistance R2 series connection after, then with cell parallel, electricity The negative pole connection of the positive pole connection of resistance R1 and battery, resistance R2 and battery, resistance R1 and resistance R2 is to electricity Cell voltage carries out partial pressure, and with the voltage of the battery after the common port output partial pressure of resistance R1 and resistance R2 extremely The input pin (ADC6) of the 6th analog-digital converter of Chip Microcomputer A tmega88.
Wherein, in temperature sensing circuit 2, the model DS18B20 digital temperature sensing of temperature sensor T Device, the power input termination running voltage of digital temperature sensor DS18B20, digital temperature sensor The power supply ground terminal ground connection of DS18B20, the outfan and single-chip microcomputer of digital temperature sensor DS18B20 Simulation benchmark input pin (AREF) connection of Atmega88, for exporting digital temperature signal to monolithic The two ends of machine Atmega88, resistance R3 respectively with digital temperature sensor DS18B20 power input and defeated Go out end connection.
Wherein, in temperature-compensation circuit 3, reset input pin (PC6) and the electricity of Chip Microcomputer A tmega88 One end connection of resistance R6, another termination running voltage of resistance R6, the power supply ground of Chip Microcomputer A tmega88 Pin is grounded.
Wherein, in warning circuit 4, the positive pole of a terminating diode V1 of resistance R4, diode V1's The other end is grounded, and the other end of resistance R4 is connected and connects running voltage, resistance R5 with one end of resistance R5 Another terminating diode V2 positive pole, the other end of diode V2 connects the first of single-chip microcomputer Atmega88 Two directions' inputing output pin (PB0), for receiving the alarm signal of Chip Microcomputer A tmega88 output to be reported Alert prompting.
Preferably, diode V1 and diode V2 is photodiode.
Preferably, the resistance of resistance R1 is 10K ohms, and the resistance of resistance R2 is 22K ohms, resistance The resistance of R3 is 511 ohm for the resistance of 4.7K ohms, resistance R9 and resistance R10.
Specifically, when circuit is started working, Chip Microcomputer A tmega88 receives the defeated of voltage collection circuit 1 After going out the voltage of end output, and the temperature signal of the output of temperature sensing circuit 2, Chip Microcomputer A tmega88 is again Temperature-compensating is carried out to be compensated voltage to the output voltage using ambient temperature parameter by program.
Specifically, the relation between ambient temperature and charging coulombic efficiency is relevant with the performance of battery, for example may be used Think a upthrow curve, ambient temperature is lower, and charging coulombic efficiency is lower, and ambient temperature is higher, Charging apparatus Logical sequence efficiency is higher, and when ambient temperature is 0 degree Celsius, charging coulombic efficiency is 93%, when ambient temperature is Room temperature, namely when 20 degrees Celsius, charging coulombic efficiency is 98%, when ambient temperature is 50 degrees Celsius, Charging coulombic efficiency reaches 100%, so as to Chip Microcomputer A tmega88 can be entered according to the relation pair cell voltage Trip temperature is compensated to be compensated voltage, by temperature-compensating, can eliminate ambient temperature to cell voltage Affect, so that the judgement to battery voltage value is more accurate.
Specifically, after Chip Microcomputer A tmega88 is compensated voltage, rerun and be stored in single-chip microcomputer Whether program in Atmega88, judge the offset voltage less than or equal to predeterminated voltage, when the offset voltage During less than or equal to predeterminated voltage, illustrate that the magnitude of voltage is too low, so as to output alarm signal is to warning circuit 3, Warning circuit 3 is received after the alarm signal, the branch road of conducting resistance R5 and diode V2 connections so that Diode V2 sends alarm using the alarm signal, so as to when cell voltage is too low, timely and accurately Alarm is sent, to prevent cell voltage too low.
The present invention passes through the current temperature value of collection cell voltage and detection battery place environment, according to current Temperature value does temperature-compensating to cell voltage, and carries out when offset voltage is less than or equal to preset voltage value low Pressure is reported to the police, such that it is able to timely and accurately carry out alarm when cell voltage is relatively low.
One of ordinary skill in the art will appreciate that all or part of flow process in above-described embodiment method is realized, Computer program be can be by instruct the hardware of correlation to complete, described program can be stored in a calculating In machine read/write memory medium, the program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method. Wherein, described storage medium can for magnetic disc, CD, read-only memory (Read-Only Memory, ) or random access memory (Random Access Memory, RAM) etc. ROM.
Above disclosed is only a kind of preferred embodiment of the invention, can not limit this with this certainly Bright interest field, one of ordinary skill in the art will appreciate that realizing all or part of stream of above-described embodiment Journey, and the equivalent variations made according to the claims in the present invention, still fall within the covered scope of invention.

Claims (7)

1. a kind of low-voltage alarm circuit, it is characterised in that the circuit includes:
Voltage collection circuit, two inputs of the voltage collection circuit are connected respectively with the both positive and negative polarity of battery, For gathering the voltage of the battery and exporting;
Temperature sensing circuit, the power input termination running voltage of the temperature sensing circuit, for detecting State the current temperature value of battery place environment and export;
Temperature-compensation circuit, the first input end of the temperature-compensation circuit is defeated with the voltage collection circuit Go out end connection, the second input of the temperature-compensation circuit is connected with the outfan of the temperature sensing circuit, The temperature-compensation circuit power input termination running voltage, for according to the current temperature value to described The voltage of battery does temperature-compensating to be compensated voltage, and in the offset voltage less than or equal to default electricity Output alarm signal during pressure value;
Warning circuit, the warning circuit power input termination running voltage, the warning circuit with it is described The outfan connection of temperature-compensation circuit, for sending alarm according to the alarm signal.
2. low-voltage alarm circuit according to claim 1, it is characterised in that the voltage collection circuit Including:
First resistor and second resistance, the positive pole of the termination battery of the first resistor, described first The other end of resistance is connected with one end of the second resistance, the other end ground connection of the second resistance, described The common port of first resistor and the second resistance is the outfan of the voltage collection circuit, for described The voltage of battery carries out partial pressure.
3. low-voltage alarm circuit according to claim 1, it is characterised in that the temperature sensing circuit Including:
Temperature sensor and 3rd resistor, the power input of the temperature sensor is temperature detection electricity The power input termination running voltage on road, the power supply ground terminal ground connection of the temperature sensor, the 3rd resistor Two ends connect with the power input of the temperature sensor and outfan respectively.
4. low-voltage alarm circuit according to claim 1, it is characterised in that the warning circuit includes:
4th resistance, the 5th resistance, the first diode and the second diode;
Wherein, the positive pole connection of one end of the 4th resistance and first diode, the 4th resistance The other end and the 5th resistance one end connection, be the warning circuit the work of power input termination electricity Pressure, the other end of the 5th resistance and the positive pole connection of second diode, second diode The outfan connection of negative pole and the temperature-compensation circuit, for receiving the report of the temperature-compensation circuit output Alert signal.
5. the low-voltage alarm circuit according to any one of Claims 1-4, it is characterised in that the temperature Degree compensation circuit includes single-chip microcomputer and the 6th resistance, model Atmega88 of the single-chip microcomputer, the monolithic The simulation benchmark input pin of machine is connected with the outfan of the temperature sensor, the 6th mould of the single-chip microcomputer The input pin of number converter is connected with the outfan of the voltage collection circuit, first pair of the single-chip microcomputer Be connected with the input of the warning circuit to input and output pin, the reset input pin of the single-chip microcomputer with One end connection of the 6th resistance, the other end of the 6th resistance is the power supply of the temperature-compensation circuit Input termination running voltage, the power supply ground pin ground connection of the single-chip microcomputer.
6. low-voltage alarm circuit according to claim 5, it is characterised in that the temperature sampling sensing Device is DS18B20 digital temperature sensors.
7. low-voltage alarm circuit according to claim 6, it is characterised in that second diode is Photodiode.
CN201510670851.1A 2015-10-13 2015-10-13 Low voltage alarm circuit Pending CN106569133A (en)

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Application Number Priority Date Filing Date Title
CN201510670851.1A CN106569133A (en) 2015-10-13 2015-10-13 Low voltage alarm circuit

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Application Number Priority Date Filing Date Title
CN201510670851.1A CN106569133A (en) 2015-10-13 2015-10-13 Low voltage alarm circuit

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CN106569133A true CN106569133A (en) 2017-04-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109030923A (en) * 2018-06-29 2018-12-18 国网河南省电力公司襄城县供电公司 A kind of intelligent substation's prior-warning device

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WO1999027628A1 (en) * 1997-11-20 1999-06-03 Encore 2000 Limited Battery monitoring system
JP2001185233A (en) * 1999-12-27 2001-07-06 Fujitsu Kiden Ltd Detection circuit for battery voltage, battery pack and detection method of battery voltage
CN101499676A (en) * 2009-02-24 2009-08-05 向琪 Vehicular power cell diagnosis method and alarm thereof
JP2011064646A (en) * 2009-09-18 2011-03-31 Nec Saitama Ltd Low-voltage detection device, low voltage detection method and program
CN103604980A (en) * 2013-11-11 2014-02-26 成都市晶林电子技术有限公司 Battery car low-voltage detection and alarm circuit
CN204129191U (en) * 2014-10-16 2015-01-28 天津全力智造科技有限公司 A kind of accumulator property detecting sensor
CN104483537A (en) * 2014-11-12 2015-04-01 深圳市芯海科技有限公司 Low-voltage detection circuit with temperature compensation function

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999027628A1 (en) * 1997-11-20 1999-06-03 Encore 2000 Limited Battery monitoring system
JP2001185233A (en) * 1999-12-27 2001-07-06 Fujitsu Kiden Ltd Detection circuit for battery voltage, battery pack and detection method of battery voltage
CN101499676A (en) * 2009-02-24 2009-08-05 向琪 Vehicular power cell diagnosis method and alarm thereof
JP2011064646A (en) * 2009-09-18 2011-03-31 Nec Saitama Ltd Low-voltage detection device, low voltage detection method and program
CN103604980A (en) * 2013-11-11 2014-02-26 成都市晶林电子技术有限公司 Battery car low-voltage detection and alarm circuit
CN204129191U (en) * 2014-10-16 2015-01-28 天津全力智造科技有限公司 A kind of accumulator property detecting sensor
CN104483537A (en) * 2014-11-12 2015-04-01 深圳市芯海科技有限公司 Low-voltage detection circuit with temperature compensation function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109030923A (en) * 2018-06-29 2018-12-18 国网河南省电力公司襄城县供电公司 A kind of intelligent substation's prior-warning device

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Application publication date: 20170419