CN110133431A - The positive-negative connected detection circuit of battery and the electronic equipment with charge function - Google Patents
The positive-negative connected detection circuit of battery and the electronic equipment with charge function Download PDFInfo
- Publication number
- CN110133431A CN110133431A CN201910446790.9A CN201910446790A CN110133431A CN 110133431 A CN110133431 A CN 110133431A CN 201910446790 A CN201910446790 A CN 201910446790A CN 110133431 A CN110133431 A CN 110133431A
- Authority
- CN
- China
- Prior art keywords
- triode
- positive
- negative
- incoming end
- detection circuit
- 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
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 59
- 230000004044 response Effects 0.000 claims description 27
- 239000003990 capacitor Substances 0.000 claims description 25
- 230000005669 field effect Effects 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 5
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000003760 hair shine Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052732 germanium Inorganic materials 0.000 description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004069 differentiation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of positive-negative connected detection circuit of battery and with the electronic equipment of charge function, wherein the voltage between positive incoming end and negative incoming end is sampled using the first triode, since the conducting voltage between transistor emitter and base stage is smaller, so, it can be when the voltage sampled be less than 1 volt using the turn-on deadline function of triode, the polarity of the battery accessed between positive incoming end and negative incoming end can still be accurately identified, it identifies that it is positive to connect or be reversely connected, in turn, using detection feedback module, processing module, signal transmission and the linkage accessed between control module acts on, supply access is just connected when just connecing for triggering access control module, supply access is not turned on when reversal connection, effectively prevent because identification voltage it is higher caused by risk and security risk, improve safety.
Description
Technical field
The present invention relates to the positive-negative connected detection circuits of electronic equipment more particularly to a kind of battery with charge function and tool
There is the electronic equipment of charge function.
Background technique
Electronic equipment with charge function, it will be appreciated that for that can be that battery itself or the equipment configured with battery are filled
Any electronic equipment of electricity, specifically can such as battery charger and emergency power supply.After accessing battery, sample detecting battery is needed to be
No reversal connection, if also implementing to charge when reversal connection, it will cause the exceptions of circuit.
It is existing in the related technology, current-limiting resistance progress error-polarity connection is usually added by optocoupler and a backward dioded
The identification voltage of sampling, sampling is higher.For example, usually need to can just recognise that reversal connection at 2 volts or more.
So, it is directed to the lesser situation of identification voltage sampled, is, for example, less than 2 volts of identification voltage, due to can not
Whether accurate judgement is reversely connected, it will usually is judged as and reversal connection not occur to implement to charge, will cause equipment internal exergy dissipation at this time
Situations such as bad and battery short circuit, it is seen then that identification voltage is higher, and risk is also higher with security risk.
Summary of the invention
The present invention provides a kind of positive-negative connected detection circuit of battery and the electronic equipment with charge function, to solve to sample
Identification voltage it is higher caused by risk and the problem of security risk.
According to the first aspect of the invention, it provides a kind of positive-negative connected detection circuit of battery, including positive incoming end, negative connects
Enter end, first capacitor, the second capacitor, the first triode, detection feedback module, processing module and access control module；
The positive incoming end and the negative incoming end can just connect or be reversely connected battery, the first end connection of the first capacitor
The second end of the emitter of the positive incoming end and first triode, the first capacitor connects the negative incoming end and institute
The base stage of the first triode is stated, is additionally provided with first resistor between the base stage and emitter of first triode；
The detection feedback module connect first triode collector and the processing module, with to the processing
Module provides feedback signal, the first feedback signal and described first when the feedback signal includes first triode ON
The second feedback signal when triode ends；
The processing module is separately connected the detection feedback module and the access control module, in response to described
One feedback signal sends first control signal to the access control module, and: in response to second feedback signal, to
The access control module sends second control signal；
The access control module is respectively connected to the positive incoming end and internal power supply anode, in response to described the
One control signal disconnects the supply access between the positive incoming end and the power supply anode, and: in response to second control
The supply access between the positive incoming end and the power supply anode is connected in signal；
The first end of second capacitor connects the power supply anode.
Optionally, the detection feedback module includes the second triode, the first divider resistance and the second divider resistance, described
The collector access of second triode has first voltage source, and the emitter of second triode connects first divider resistance
One end, the other end of first divider resistance connects one end of second divider resistance, second divider resistance
Other end ground connection；Second resistance is additionally provided between the collector and base stage of second triode；
The base stage of second triode is connected to the collector of first triode, to lead in first triode
End when logical, and is connected in first triode cut-off；
The processing module is connected to the first node between first divider resistance and second divider resistance, with
The voltage signal or its reverse voltage signal for acquiring the first node are as the feedback signal.
Optionally, the one or two pole is additionally provided between the base stage of second triode and the collector of first triode
Pipe and 3rd resistor, the anode of the first diode are connected to the base stage of second triode, the first diode
Cathode is connected to the collector of first triode.
Optionally, the detection feedback module includes photo-coupler and the 4th resistance；
The both ends of first side of the photo-coupler are separately connected the emitter of the second voltage source Yu first triode,
It is shone with being connected in first triode ON, and stops shining in first triode truncation；
The first end of second side of the photo-coupler connects tertiary voltage source, and second end is through the 4th resistance eutral grounding；
The processing module is connected between the second end of second side of the photo-coupler and the 4th resistance
Two nodes, to acquire the voltage signal of the second node as the feedback signal.
Optionally, the second diode is additionally provided between the second end of the first capacitor and the base stage of first triode
With the 5th resistance, the anode of second diode is connected to the second end of the first capacitor, and second diode is born
Pole is connected to the base stage of first triode.
Optionally, the access control module includes trigger unit and on-off control unit, the on-off control unit
Both ends are separately connected the positive incoming end and the power supply anode；
The trigger unit connects the on-off control unit, to trigger described logical in response to the first control signal
Disconnected control unit disconnects the supply access, and in response to the second control signal, triggers the on-off control unit and lead
Lead to the supply access.
Optionally, the trigger unit includes third transistor；
The base stage of the third transistor connects the processing module, to end in response to the first control signal, with
And: it is connected in response to the second control signal；
On-off control unit described in the collector direct or indirect connection of the third transistor, in the three or three pole
Pipe triggers the on-off control unit and disconnects the supply access when ending, and: it is triggered in third transistor conducting
The supply access is connected in the on-off control unit.
Optionally, the on-off control unit includes relay；
Two coil feet of the relay are separately connected the collector of the 4th voltage source and the third transistor, described
Positive incoming end connects the first contact foot of the relay, the second contact foot of the power supply anode connection relay, and described the
One contact foot and second contact foot are normally opened.
Optionally, the on-off control unit includes p-type field-effect tube, described in the grid connection of the p-type field-effect tube
The collector of third transistor, the drain electrode of the p-type field-effect tube connect the positive incoming end, the p-type field-effect tube of stating
Source electrode connects the power supply anode, and the 6th resistance is equipped between the source electrode and grid of the p-type field-effect tube.
According to the second aspect of the invention, provide a kind of electronic equipment with charge function, including first aspect and
The positive-negative connected detection circuit for the battery that its optinal plan is related to.
The positive-negative connected detection circuit of battery provided by the invention utilizes the one or three pole with the electronic equipment of charge function
Pipe samples the voltage between positive incoming end and negative incoming end, since the conducting voltage between transistor emitter and base stage is smaller, example
If the conducting voltage of silicon triode is 0.7 volt or so or 0.5 volt or so, the conducting voltage of germanium triode is 0.3 volt or so, therefore
And access can be still being accurately identified just when the voltage sampled is less than 1 volt using the turn-on deadline function of triode
The polarity of battery between incoming end and negative incoming end identifies that it is positive and connects or be reversely connected, in turn, feeds back using detection
Module, processing module, access control module between signal transmission with linkage act on, triggering access control module when just connecing
Supply access is connected, when reversal connection, is not turned on supply access, effectively prevent because identification voltage it is higher caused by risk and peace
Full hidden danger, improves safety.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the circuit diagram one of the positive-negative connected detection circuit of battery in one embodiment of the invention；
Fig. 2 is the circuit diagram two of the positive-negative connected detection circuit of battery in one embodiment of the invention；
Fig. 3 is the circuit diagram three of the positive-negative connected detection circuit of battery in one embodiment of the invention；
Fig. 4 is the circuit diagram four of the positive-negative connected detection circuit of battery in one embodiment of the invention；
Fig. 5 is the circuit diagram five of the positive-negative connected detection circuit of battery in one embodiment of the invention；
Fig. 6 is the circuit diagram six of the positive-negative connected detection circuit of battery in one embodiment of the invention；
Fig. 7 is the circuit diagram seven of the positive-negative connected detection circuit of battery in one embodiment of the invention；
Fig. 8 is the circuit diagram eight of the positive-negative connected detection circuit of battery in one embodiment of the invention；
Fig. 9 is the circuit diagram nine of the positive-negative connected detection circuit of battery in one embodiment of the invention.
Description of symbols:
1: detection feedback module；
2: processing module；
3: access control module；
31: trigger unit；
32: on-off control unit；
C1: first capacitor；
C2: the second capacitor；
Q1: the first triode；
Q2: the second triode；
Q3: third transistor；
B+: positive incoming end；
B-: negative incoming end；
D1: first diode；
D2: the second diode；
Vin+: power supply anode；
Vin-: power supply negative terminal；
R1: first resistor；
R2: second resistance；
R3: 3rd resistor；
R4: the four resistance；
R5: the five resistance；
R6: the six resistance；
R7: the seven resistance；
R8: the eight resistance；
Rd1: the first divider resistance；
Rd2: the second divider resistance；
OC: photo-coupler；
K1: relay；
PMOS:P type field-effect tube.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first ", " second ", " third " " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to
Here the sequence other than those of diagram or description is implemented.In addition, term " includes " and " having " and their any deformation,
Be intended to cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, system, product or setting
It is standby those of to be not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these mistakes
The intrinsic other step or units of journey, method, product or equipment.
Technical solution of the present invention is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 1 is the circuit diagram one of the positive-negative connected detection circuit of battery in one embodiment of the invention.
Referring to FIG. 1, the positive-negative connected detection circuit of battery, including positive incoming end B+, negative incoming end B-, first capacitor C1,
Second capacitor C2, the first triode Q1, detection feedback module 1, processing module 2 and access control module 3.
The positive incoming end B+ and the negative incoming end B- can just connect or be reversely connected battery, when battery is just accessing positive incoming end
It is battery charging using the power supply of positive feeder ear Vin+ when B+ and negative incoming end B-, conversely, when battery is reversely connected into positive incoming end
When B+ and negative incoming end B-, it can not implement to charge, in addition to not implementing to charge, in other optional embodiments, example can also be passed through
Such as LED, buzzer alarm component sound an alarm.
The first end of the first capacitor C1 connects the emitter of the positive incoming end B+ Yu the first triode Q1, institute
The second end for stating first capacitor C1 connects the base stage of the negative incoming end B- Yu the first triode Q1, first triode
First resistor R1 is additionally provided between the base stage and emitter of Q1.
Wherein, the first triode Q1 can be arbitrary triode, such as can be silicon triode, be also possible to three pole of germanium
Pipe, it is different according to the demand of test, it can choose matched triode.In turn, under the above connection type, the first triode Q1
Base stage and emitter be parallel to the both ends of first capacitor C1, can sample between the positive incoming end B+ and negative incoming end B-
Voltage.
When battery reversal connection, referring to FIG. 1, the voltage at the both ends first capacitor C1 be it is upper it is negative under just, i.e., first end is negative, the
Two ends are positive, and positive pressure can directly or indirectly act on the base stage of the first triode Q1, the base stage and emitter of the first triode Q1
As long as voltage be greater than such as 0.5V conducting voltage, collector and emitter will be connected, so that the first triode Q1
Conducting.
Conversely, when battery just connects, referring to FIG. 1, the voltage at the both ends first capacitor C1 is upper just lower negative, i.e. first end
It is positive, second end is negative, and the voltage of the base stage of the first triode Q1 is less than the voltage of emitter, to may make the first triode
Q1 cut-off.
As it can be seen that the present embodiment samples the voltage between positive incoming end and negative incoming end using the first triode, due to three poles
Conducting voltage between pipe emitter and base stage is smaller, such as the conducting voltage of silicon triode is 0.7 volt or so or 0.5 volt or so,
The conducting voltage of germanium triode is 0.3 volt or so, so, cause cutoff function can be in the electricity sampled using triode
When pressure is less than 1 volt, the polarity of the battery accessed between positive incoming end and negative incoming end can be still accurately identified, that is, identifies it
It is positive and connects or be reversely connected.
Referring to FIG. 1, it is described detection feedback module 1 connect the first triode Q1 collector and the processing module
1, to provide feedback signal to the processing module.
The first feedback signal and first triode when feedback signal includes first triode ON are cut
The second feedback signal when only；Its collector when the voltage of its collector would generally end with it when due to the first triode ON
Voltage it is different, by the feedback of feedback signal, can accurately indicate the control access control module 3 of processing module 2, implement it just
Corresponding on-off controls when connecing with reversal connection.Wherein, which may also comprise the case where voltage is 0.
The processing module 2 is separately connected the detection feedback module 1 and the access control module 3, in response to institute
The first feedback signal is stated, sends first control signal to the access control module 3, and: in response to second feedback letter
Number, second control signal is sent to the access control module 3.
First control signal and second control signal therein can be respectively that the first level signal and second electrical level are believed
Number, in a kind of citing, the first level signal therein can be low level signal, and second electrical level signal can be high level letter
Number, in another kind citing, the first level signal therein is also possible to high level signal, and second electrical level signal can be low level
Signal.As long as the two is different signal.
The access control module 3 is respectively connected to the positive incoming end B+ and internal power supply anode Vin+, with response
In the first control signal, the supply access between the positive incoming end B+ and the power supply anode Vin+ is disconnected, and: response
In the second control signal, the supply access between the positive incoming end B+ and the power supply anode Vin+ is connected.
The first end of the second capacitor C2 connects the power supply anode Vin+, to ensure the stabilization of supply voltage.Meanwhile
Power supply negative terminal Vin- can be grounded, and corresponding, negative incoming end B- can also be grounded.
As it can be seen that the present embodiment can using detection feedback module, processing module, access control module between signal transmission with
Linkage effect, when just connecing, just conducting supply access, when reversal connection, are not turned on supply access to triggering access control module, effectively avoid
Because identification voltage it is higher caused by risk and security risk, improve safety.
Fig. 2 is the circuit diagram two of the positive-negative connected detection circuit of battery in one embodiment of the invention.
Referring to FIG. 2, the detection feedback module 1 includes the second triode Q2, the first divider resistance Rd1With the second partial pressure
Resistance Rd2, the collector of the second triode Q2, which accesses, first voltage source V1, and the emitter of the second triode Q2 connects
Meet the first divider resistance Rd1One end, the first divider resistance Rd1The other end connect the second divider resistance Rd2
One end, the second divider resistance Rd2The other end ground connection；It is also set between the collector and base stage of the second triode Q2
There is second resistance R2.
The base stage of the second triode Q2 is connected to the collector of the first triode Q1, in the one or three pole
Pipe Q1 ends when being connected, and is connected in the first triode Q1 cut-off.
The processing module 2 is connected to the first divider resistance Rd1With the second divider resistance Rd2Between first
Node, using the voltage signal for acquiring the first node or its reverse voltage signal as the feedback signal.
When battery reversal connection, referring to FIG. 2, the first triode Q1 is connected, at this point, the current potential of the base stage of the second triode Q2
It is pulled low, when the base stage of the second triode Q2 and the potential difference of emitter are pulled low to such as 0.5 volt of conducting voltage or less, second
Triode Q2, which just ends, to be not turned on, that is, is ended its collector and emitter, be not turned on it, the first divider resistance Rd1With second point
Piezoresistance Rd2Also with regard to without processing module 2 is divided to, in turn, processing module can acquire 0 volt of the voltage signal, i.e. the first feedback letter
It number can be 0 volt of voltage signal.
Conversely, when battery just connects, referring to FIG. 2, the first triode Q1 ends, at this point, the base stage of the second triode Q2
Current potential be effect of the first voltage source V1 through second resistance R2 and draw high so that base stage and the potential difference of emitter are big
In such as 0.5 volt of conducting voltage, at this point, the second triode can be connected, the first divider resistance Rd1With the second divider resistance Rd2Just
Processing module 2 can be divided under the voltage of first voltage source V1, in turn, processing module can acquire the voltage letter after the partial pressure
Number, i.e. the second feedback signal can be the voltage signal after the partial pressure.
In addition, phase inverter can also be equipped between processing module 2 and first node, and in turn, the reverse phase electricity that can be obtained
Press signal as feedback signal.As long as the on and off two states of the first triode Q1 can be distinguished over, so that processing mould
Block 2 receives two different feedback signals, does not just depart from the description of the present embodiment.
In one of embodiment, referring to FIG. 2, the base stage of the second triode Q2 and the first triode Q1
Collector between be additionally provided with first diode D1 and 3rd resistor R3, can be it is concatenated, the first diode D1's
Anode is connected to the base stage of the second triode Q2, and the cathode of the first diode D1 is connected to the first triode Q1
Collector.In turn, the conducting of the first triode Q1 will be incited somebody to action by first diode D1 with connecting for 3rd resistor R3 therewith
The current potential of second triode Q2 drags down.Pass through the first headphone tube D1 and 3rd resistor R3, it is possible to provide required pressure drop and counnter attack etc.
Function.
Fig. 3 is the circuit diagram three of the positive-negative connected detection circuit of battery in one embodiment of the invention.
Referring to FIG. 3, the detection feedback module 1 includes photo-coupler OC and the 4th resistance R4.
The both ends of the first side of the photo-coupler OC are separately connected the second voltage source V2's and the first triode Q1
Emitter is shone with being connected in the first triode Q1 conducting, and stops shining in the first triode Q1 truncation.
The first end of second side of the photo-coupler OC connects tertiary voltage source V3, and second end is through the 4th resistance R4
Ground connection.
The processing module 2 is connected between the second end of second side of the photo-coupler OC and the 4th resistance R4
Second node, to acquire the voltage of the second node as the feedback signal.
When battery reversal connection, referring to FIG. 3, the first triode Q1 is connected, at this point, the first side of photo-coupler OC can be sent out
Light, so that the coupling of its second side is connected, so that being connected between tertiary voltage source V3 and the 4th resistance R4, between the two
The voltage of second node can regard that the higher voltage signal of voltage value, i.e., the voltage value of the first feedback signal at this time are the 4th as
The voltage value of one end of the connection photo-coupler OC of resistance R4, is greater than 0.
Conversely, when battery just connects, referring to FIG. 3, the first triode Q1 ends, at this point, the first side of photo-coupler OC
It does not shine, is not turned on the both ends of its second side, so that being connected between tertiary voltage source V3 and the 4th resistance R4, the two
Between the voltage of second node can regard 0 volt as, voltage of the voltage value of the second feedback signal with respect to the first feedback signal at this time
Value is low.As it can be seen that embodiment of above can also realize the differentiation of different feedback signals.
So no matter complex chart 2 and Fig. 3 are as it can be seen that using which kind of detection feedback system, as long as realizing the first triode
Q1 conducting and the differentiation of cut-off are fed back, no matter also used feedback system is existing or improved, all without departing from this
The description of embodiment.
Fig. 4 is the circuit diagram four of the positive-negative connected detection circuit of battery in one embodiment of the invention.
Referring to FIG. 4, being additionally provided between the second end of the first capacitor C1 and the base stage of the first triode Q1
Two diode D2 and the 5th resistance R5, the two are cascaded, and the anode of the second diode D2 is connected to described
The second end of one capacitor C1, the cathode of the second diode D2 are connected to the base stage of the first triode Q1.Pass through second
Headphone tube D2 and the 5th resistance R5, it is possible to provide the functions such as required pressure drop and counnter attack.
Fig. 5 is the circuit diagram five of the positive-negative connected detection circuit of battery in one embodiment of the invention.
Referring to FIG. 5, the access control module 3 includes trigger unit 31 and on-off control unit 32, the on-off control
The both ends of unit 32 processed are separately connected the positive incoming end B+ and the power supply anode Vin+.
The trigger unit 31 connects the on-off control unit 32, to trigger institute in response to the first control signal
It states on-off control unit 32 and disconnects the supply access, and in response to the second control signal, trigger the on-off control
The supply access is connected in unit 32.
When battery reversal connection, referring to FIG. 5, processing module 2 can collect the first feedback signal, in response to first feedback
Signal, the capable of emitting corresponding first control signal of processing module 2, trigger unit 31 can then be disconnected in response to first control signal
Supply access, so that power supply anode Vin+ powers without the positive incoming end B+ of normal direction, to can not implement to charge.
Conversely, when battery just connects, referring to FIG. 5, processing module 2 can collect the second feedback signal, in response to this
Two feedback signals, the capable of emitting corresponding second control signal of processing module 2, trigger unit 31 is in response to second control signal, then
Supply access can be connected, power supply anode Vin+ is powered to positive incoming end B+, to implement to charge.
Trigger unit 31, it will be appreciated that for that arbitrarily on-off control unit 32 can be made under control of the control signal to become
The device of change or the set of device.
On-off control unit 32, it will be appreciated that be the control that can arbitrarily be triggered, to realize the device or device of on-off switching
The set of part.
Fig. 6 is the circuit diagram six of the positive-negative connected detection circuit of battery in one embodiment of the invention；Fig. 7 is the present invention one
The circuit diagram seven of the positive-negative connected detection circuit of battery in embodiment.
Fig. 6 and Fig. 7 are please referred to, the trigger unit 31 may include third transistor Q3.
The base stage of the third transistor Q3 connects the processing module 2, to end in response to the first control signal,
And: it is connected in response to the second control signal.
On-off control unit 32 described in the collector direct or indirect connection of the third transistor Q3, in the third
Triode Q3 triggers the on-off control unit 32 when ending and disconnects the supply access, and: in the third transistor Q3
The on-off control unit 32 is triggered when conducting, and the supply access is connected.
Since triode is in the case where having power supply and forming access, when on state the voltage of collector be usually with
The voltage of collector is different when cut-off, and in turn, the present embodiment can trigger on-off control unit 32 accurately and in time on this basis
Transition state.
Further, the collector of third transistor Q3 can be connected in voltage source, such as embodiment shown in Fig. 6,
It can be connected to the 4th voltage source V5 through relay K1, such as in the embodiment shown in figure 7, power supply can be also connected to through resistance just
Hold Vin+；Meanwhile the emitter of third transistor Q3 through resistance or can be directly grounded.
In specific implementation process, referring to FIG. 6, the on-off control unit 32 is to be separately connected the third transistor Q3
Collector, the 4th voltage source V5 and the positive incoming end B+ and it is described power supply anode Vin+ relay K1.
Specifically, two coil feet of relay K1 are separately connected the collection of the 4th voltage source V5 Yu the third transistor Q3
Electrode, the first contact foot of the positive incoming end B+ connection relay K1, the of the power supply anode Vin+ connection relay K1
Two contact feet, first contact foot and second contact foot be it is normally opened, can when two coil feet, which are powered, generates magnetic field
So that the first contact foot and the second contact foot are attracted, when being not powered on, the first contact foot and the second contact foot are then to disconnect.
When battery reversal connection, processor can control third transistor Q3 cut-off, and relay K1 can disconnect its input at this time
End and output end, so that the supply access between the positive incoming end B+ and the power supply anode Vin+ disconnects.
When battery just connects, processor can control third transistor Q3 conducting, and relay K1 can connect its input terminal at this time
Implement charging so that the supply access between the positive incoming end B+ and the power supply anode Vin+ is connected with output end.
In specific implementation process, referring to FIG. 7, the on-off control unit includes p-type field-effect tube PMOS, the p-type
The grid of field-effect tube PMOS connects the collector of the third transistor Q3, the drain electrode connection of the p-type field-effect tube PMOS
The positive incoming end B+, the source electrode for stating p-type field-effect tube connect the power supply anode Vin+, the p-type field-effect tube
The 6th resistance R6 is equipped between the source electrode and grid of PMOS.
When battery reversal connection, processor can control third transistor Q3 cut-off, and the grid of p-type field-effect tube PMOS is at this time
High level, p-type field-effect tube PMOS are unsatisfactory for turn-on condition, and source electrode and drain electrode are not turned on, so that described just connect
Enter to hold the supply access between B+ and the power supply anode Vin+ to disconnect.
When battery just connects, processor can control third transistor Q3 conducting, at this time the grid quilt of p-type field-effect tube PMOS
Be low level after drop-down, p-type field-effect tube PMOS meets turn-on condition, source electrode and drain electrode conducting so that it is described just
Supply access between incoming end B+ and the power supply anode Vin+ is connected.
Fig. 8 is the circuit diagram eight of the positive-negative connected detection circuit of battery in one embodiment of the invention.Fig. 9 is the present invention one
The circuit diagram nine of the positive-negative connected detection circuit of battery in embodiment.
Fig. 8 is construed as the scheme that embodiment is further obtained with Fig. 6 illustrated embodiment as shown in connection with fig. 2,
Its associated description can refer to be understood above.
Fig. 9 is construed as the scheme that embodiment is further obtained with Fig. 7 illustrated embodiment as shown in connection with fig. 3,
Its associated description can refer to be understood above.
Referring to FIG. 8, the voltage of first voltage source therein can be+5 volts, the voltage of the 4th voltage source V4 can for+
12 volts.Wherein 1 foot of relay and 2 feet be above involved in coil foot, 3 foot and 4 feet therein are above related the
Two contact feet, 5 foot therein are that related first contact foot, third transistor Q3 therein can connect through the 7th resistance R7 above
To processing module 2.
Referring to FIG. 9 ,+12 volt of voltage of the second voltage source V2 therein, the voltage of tertiary voltage source V3 is+5 volts.Wherein
The 8th resistance R8 is additionally provided between the first end of the first side of the second voltage source V2 and photo-coupler OC.
Fig. 8 and Fig. 9 are please referred to, processing module 2 may include Micro-processor MCV.The MCU can be also used to execute other function
Can, and it is not limited to the reception and the transmission of control signal of feedback signal involved in this embodiment.
If in addition, processing module 2 is only used for implementing the function of the present embodiment, i.e. reception feedback signal, and issuing control letter
Number, due to feedback signal and control signal can be characterized by high level signal with low level signal, control signal with instead
It is immediately matching variation between feedback signal, so, processing module 2 can not also use complicated Micro-processor MCV, and use example
It is realized such as the arithmetic units such as phase inverter or concatenated two phase inverters.
The present embodiment additionally provides a kind of electronic equipment with charge function, including electricity involved in the above optinal plan
The positive-negative connected detection circuit in pond.
The electronic equipment can such as battery charger, emergency power supply, can also for example can for other equipment charging calculating
Machine, mobile phone, mobile unit etc..
In conclusion the positive-negative connected detection circuit of battery provided by the invention and the electronic equipment with charge function, benefit
The voltage between positive incoming end and negative incoming end is sampled with the first triode, due to the electric conduction between transistor emitter and base stage
Pressure is smaller, such as the conducting voltage of silicon triode is 0.7 volt or so or 0.5 volt or so, and the conducting voltage of germanium triode is 0.3 volt
Left and right, so, it can still be accurately identified when the voltage sampled is less than 1 volt using the turn-on deadline function of triode
To the polarity of the battery accessed between positive incoming end and negative incoming end, that is, identifies that it is positive and connect or be reversely connected, it is in turn, available
Detect feedback module, processing module, access control module between signal transmission with linkage act on, triggering access control module exist
Supply access is just connected when just connecing, when reversal connection, is not turned on supply access, effectively prevent because identification voltage it is higher caused by endanger
Dangerous and security risk, improves safety.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of positive-negative connected detection circuit of battery, which is characterized in that including positive incoming end, negative incoming end, first capacitor, second
Capacitor, the first triode, detection feedback module, processing module and access control module；
The positive incoming end and the negative incoming end can just connect or be reversely connecteds battery, described in the first end of the first capacitor connects
The emitter of positive incoming end and first triode, the second end of the first capacitor connect the negative incoming end and described the
The base stage of one triode is additionally provided with first resistor between the base stage and emitter of first triode；
The detection feedback module connect first triode collector and the processing module, with to the processing module
Feedback signal is provided, the first feedback signal and the one or three pole when feedback signal includes first triode ON
The second feedback signal when pipe ends；
The processing module is separately connected the detection feedback module and the access control module, with anti-in response to described first
Feedback signal sends first control signal to the access control module, and: in response to second feedback signal, Xiang Suoshu
It accesses control module and sends second control signal；
The access control module is respectively connected to the positive incoming end and internal power supply anode, in response to first control
Signal processed disconnects the supply access between the positive incoming end and the power supply anode, and: believe in response to second control
Number, the supply access between the positive incoming end and the power supply anode is connected；
The first end of second capacitor connects the power supply anode.
2. the positive-negative connected detection circuit of battery according to claim 1, which is characterized in that the detection feedback module includes
The collector access of second triode, the first divider resistance and the second divider resistance, second triode has first voltage source,
The emitter of second triode connects one end of first divider resistance, the other end connection of first divider resistance
One end of second divider resistance, the other end ground connection of second divider resistance；The collector of second triode with
Second resistance is additionally provided between base stage；
The base stage of second triode is connected to the collector of first triode, in first triode ON
Cut-off, and be connected in first triode cut-off；
The processing module is connected to the first node between first divider resistance and second divider resistance, with acquisition
The voltage signal of the first node or its reverse voltage signal are as the feedback signal.
3. the positive-negative connected detection circuit of battery according to claim 2, which is characterized in that the base stage of second triode
First diode and 3rd resistor are additionally provided between the collector of first triode, the anode of the first diode is even
It is connected to the base stage of second triode, the cathode of the first diode is connected to the collector of first triode.
4. the positive-negative connected detection circuit of battery according to claim 1, which is characterized in that the detection feedback module includes
Photo-coupler and the 4th resistance；
The both ends of first side of the photo-coupler are separately connected the emitter of the second voltage source Yu first triode, with
It is connected and shines when first triode ON, and stop shining in first triode truncation；
The first end of second side of the photo-coupler connects tertiary voltage source, and second end is through the 4th resistance eutral grounding；
The processing module is connected to the second section between the second end of second side of the photo-coupler and the 4th resistance
Point, to acquire the voltage signal of the second node as the feedback signal.
5. the positive-negative connected detection circuit of battery according to any one of claims 1 to 4, which is characterized in that first electricity
The second diode and the 5th resistance, second diode are additionally provided between the second end of appearance and the base stage of first triode
Anode be connected to the second end of the first capacitor, the cathode of second diode is connected to the base of first triode
Pole.
6. the positive-negative connected detection circuit of battery according to any one of claims 1 to 4, which is characterized in that the access control
Molding block includes trigger unit and on-off control unit, the both ends of the on-off control unit be separately connected the positive incoming end with
The power supply anode；
The trigger unit connects the on-off control unit, to trigger the on-off control in response to the first control signal
Unit processed disconnects the supply access, and in response to the second control signal, triggers on-off control unit conducting institute
State supply access.
7. the positive-negative connected detection circuit of battery according to claim 6, which is characterized in that the trigger unit includes third
Triode；
The base stage of the third transistor connects the processing module, to end in response to the first control signal, and: it rings
The conducting of second control signal described in Ying Yu；
On-off control unit described in the collector direct or indirect connection of the third transistor, to be cut in the third transistor
The on-off control unit is triggered when only disconnects the supply access, and: in third transistor conducting described in triggering
The supply access is connected in on-off control unit.
8. the positive-negative connected detection circuit of battery according to claim 6, which is characterized in that the on-off control unit includes
Relay；
Two coil feet of the relay are separately connected the collector of the 4th voltage source and the third transistor, described just to connect
Enter the first contact foot that end connects the relay, the second contact foot of the power supply anode connection relay, first touching
Point foot and second contact foot are normally opened.
9. the positive-negative connected detection circuit of battery according to claim 6, which is characterized in that the on-off control unit includes
P-type field-effect tube, the grid of the p-type field-effect tube connect the collector of the third transistor, the p-type field-effect tube
Drain electrode connects the positive incoming end, and the source electrode for stating p-type field-effect tube connects the power supply anode, the p-type field-effect tube
Source electrode and grid between be equipped with the 6th resistance.
10. a kind of electronic equipment with charge function, which is characterized in that including the described in any item batteries of claim 1 to 9
Positive-negative connected detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446790.9A CN110133431A (en) | 2019-05-27 | 2019-05-27 | The positive-negative connected detection circuit of battery and the electronic equipment with charge function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446790.9A CN110133431A (en) | 2019-05-27 | 2019-05-27 | The positive-negative connected detection circuit of battery and the electronic equipment with charge function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110133431A true CN110133431A (en) | 2019-08-16 |
Family
ID=67582249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910446790.9A Pending CN110133431A (en) | 2019-05-27 | 2019-05-27 | The positive-negative connected detection circuit of battery and the electronic equipment with charge function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110133431A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116718935A (en) * | 2023-08-08 | 2023-09-08 | 成都爱旗科技有限公司 | Battery detection device and battery detection method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203589722U (en) * | 2013-11-08 | 2014-05-07 | 中航华东光电有限公司 | Reverse connection resistant circuit used for DC power supply |
| CN106569084A (en) * | 2016-11-15 | 2017-04-19 | 杭州普安科技有限公司 | Controllable characteristic load used for cable cabling accuracy detection |
| CN206619904U (en) * | 2017-03-03 | 2017-11-07 | 惠州市鼎力智能科技有限公司 | A kind of battery reversal connection leakproof current circuit |
| CN109167413A (en) * | 2018-10-11 | 2019-01-08 | 佛山职业技术学院 | A kind of anti-reverse and anti-back flow circuit of battery charging |
| CN109212297A (en) * | 2018-10-08 | 2019-01-15 | 北方电子研究院安徽有限公司 | A kind of power down warning circuit |
| CN109378783A (en) * | 2018-11-22 | 2019-02-22 | 浙江安伴汽车安全急救技术股份有限公司 | Connection controller and automobile cable folder |
| CN210775808U (en) * | 2019-05-27 | 2020-06-16 | 上海广为美线电源电器有限公司 | Positive and negative connection detection circuit of battery and electronic equipment with charging function |
-
2019
- 2019-05-27 CN CN201910446790.9A patent/CN110133431A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203589722U (en) * | 2013-11-08 | 2014-05-07 | 中航华东光电有限公司 | Reverse connection resistant circuit used for DC power supply |
| CN106569084A (en) * | 2016-11-15 | 2017-04-19 | 杭州普安科技有限公司 | Controllable characteristic load used for cable cabling accuracy detection |
| CN206619904U (en) * | 2017-03-03 | 2017-11-07 | 惠州市鼎力智能科技有限公司 | A kind of battery reversal connection leakproof current circuit |
| CN109212297A (en) * | 2018-10-08 | 2019-01-15 | 北方电子研究院安徽有限公司 | A kind of power down warning circuit |
| CN109167413A (en) * | 2018-10-11 | 2019-01-08 | 佛山职业技术学院 | A kind of anti-reverse and anti-back flow circuit of battery charging |
| CN109378783A (en) * | 2018-11-22 | 2019-02-22 | 浙江安伴汽车安全急救技术股份有限公司 | Connection controller and automobile cable folder |
| CN210775808U (en) * | 2019-05-27 | 2020-06-16 | 上海广为美线电源电器有限公司 | Positive and negative connection detection circuit of battery and electronic equipment with charging function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116718935A (en) * | 2023-08-08 | 2023-09-08 | 成都爱旗科技有限公司 | Battery detection device and battery detection method |
| CN116718935B (en) * | 2023-08-08 | 2023-11-07 | 成都爱旗科技有限公司 | Battery detection device and battery detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207354057U (en) | A kind of switch driving circuit, battery control circuit, battery and unmanned plane | |
| CN207910511U (en) | Battery charge control circuit and dust catcher | |
| CN203422413U (en) | Circuit and system for electric vehicle conduction type charging guide signal detection | |
| CN103338029B (en) | A kind of automatic reset device | |
| CN114325473B (en) | Short circuit detection circuit, short circuit detection method, short circuit detection device, electronic equipment and storage medium | |
| CN109358548A (en) | A kind of charging method of automotive diagnostic system, vehicle diagnosis and automotive diagnostic unit | |
| CN203617494U (en) | Electric shock prevention socket | |
| CN211669346U (en) | Connection detection system | |
| CN106208225A (en) | The charging active circuit of rechargeable battery | |
| CN109309375A (en) | One kind being based on monolithic processor controlled POE power supply system | |
| CN113330323A (en) | Contactor state detection circuit, system and vehicle | |
| CN117269851B (en) | Terminal grafting detection device | |
| CN110133431A (en) | The positive-negative connected detection circuit of battery and the electronic equipment with charge function | |
| CN207742316U (en) | Battery detection circuit and battery management system | |
| CN211086551U (en) | Fill electric pile output short circuit detection circuitry | |
| WO2024007835A1 (en) | Power source turn-on/turn-off control circuit and system for reset switch | |
| CN210775808U (en) | Positive and negative connection detection circuit of battery and electronic equipment with charging function | |
| CN207662993U (en) | A kind of detection device of feeder ear wiring condition, conduction charging system and electric vehicle | |
| CN104426139A (en) | Anti-reverse battery charging protecting circuit | |
| CN213482400U (en) | Contactor state detection circuit, system and vehicle | |
| CN104868528A (en) | Intelligent watch charging base integrating time clock function | |
| CN208445752U (en) | A kind of hearing aid circuit | |
| CN103472354A (en) | Switching-closing judging circuit of electric leakage reclosure breaker | |
| CN211351688U (en) | ACC trigger control's undervoltage protection circuit, two mesh camera devices and autopilot system | |
| CN203502529U (en) | Switching on/of judging circuit of electric leakage reclosure breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |