CN206211959U - A kind of voltage comparator circuit, application circuit are with electronic installation - Google Patents
A kind of voltage comparator circuit, application circuit are with electronic installation Download PDFInfo
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- CN206211959U CN206211959U CN201621251524.9U CN201621251524U CN206211959U CN 206211959 U CN206211959 U CN 206211959U CN 201621251524 U CN201621251524 U CN 201621251524U CN 206211959 U CN206211959 U CN 206211959U
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Abstract
The utility model provides a kind of voltage comparator circuit, its bleeder circuit for including the first operational amplifier, the second operational amplifier, the first diode, the second diode, voltage signal inputs, voltage signal output end, first voltage input, second voltage input, first voltage output end, second voltage output end and ground connection；First voltage input exports high to the voltage of second voltage output end by the voltage ratio that bleeder circuit is exported to first voltage output end；The in-phase input end of the first operational amplifier is connected with first voltage output end, the inverting input of the second operational amplifier is connected with second voltage output end, and the in-phase input end of the inverting input of the first operational amplifier and the second operational amplifier is connected with voltage signal inputs；The output end of the first operational amplifier, the output end of the second operational amplifier, voltage signal output end are connected with second voltage input.The utility model circuit structure is simple, low production cost and using flexible.
Description
Technical field
The utility model is related to electronic technology field, more particularly, to a kind of voltage comparator circuit, application circuit and electronics
Device.
Background technology
Voltage comparator circuit can be regarded as a kind of application circuit of operational amplifier, it can be used for alarm circuit, from
Dynamic control circuit, analog to digital conversion circuit, high speed sampling circuit, supply voltage monitoring circuit, oscillator and voltage-controlled oscillator circuit,
In the circuit arrangements such as zero cross detection circuit.
Existing voltage comparator circuit is typically integrated in application specific integrated circuit (Integrated Circuit, IC) chip
Interior (as the part of functions of special chip) or using compiling with the analog-digital converter for carrying out analog-to-digital conversion
Journey chip.Wherein, voltage comparator circuit is integrated in special IC and can limits and be integrated in IC because of the not general of IC
The use flexibility of the voltage comparator circuit in face, and be integrated in the circuit structure of the voltage comparator circuit inside IC and often compare
Complexity, simultaneously as voltage comparator circuit is integrated in into IC the insides can also cause that the production cost of voltage comparator circuit is higher.This
Outward, because voltage comparator circuit can cause that its production cost is higher using the programmable chip with analog-digital converter, while
Also so that the circuit structure of voltage comparator circuit is complicated, and since it is desired that corresponding software support could normal work so that
Have impact on the use flexibility of voltage comparator circuit.
Utility model content
Regarding to the issue above, the purpose of this utility model is to provide a kind of low production cost, simple structure and use clever
The electronic installation of voltage comparator circuit, the circuit using the voltage comparator circuit and the application voltage comparator circuit living.
To achieve these goals, the technical solution adopted in the utility model is：A kind of voltage comparator circuit, it includes
One operational amplifier, the second operational amplifier, the first diode, the second diode, voltage signal inputs, voltage signal output
The partial pressure at end, first voltage input, second voltage input, first voltage output end, second voltage output end and ground connection
Circuit；The first voltage input is connected by the bleeder circuit with the first voltage output end, second voltage output end
Connect, the output voltage of the first voltage output end is higher than the output voltage of the second voltage output end；First computing
The in-phase input end of amplifier is connected with the first voltage output end, the inverting input of first operational amplifier and institute
Voltage signal inputs connection is stated, the output end of first operational amplifier is connected with the negative pole of first diode；Institute
The inverting input for stating the second operational amplifier is connected with the second voltage output end, the same phase of second operational amplifier
Input is connected with the voltage signal inputs, and the output end of second operational amplifier is negative with second diode
Pole connects；The positive pole of first diode, the positive pole of second diode and the voltage signal output end are and institute
State the connection of second voltage input.
Preferably, the bleeder circuit includes first resistor device, second resistance device and 3rd resistor device, first electricity
Pressure input, the first resistor device, the second resistance device are sequentially connected in series and described second with the 3rd resistor device
Resistor is grounded by the 3rd resistor, and first electricity is connected between the first resistor device and the second resistance device
Pressure output end, is connected with the second voltage output end between the second resistance device and the 3rd resistor device.
Preferably, the bleeder circuit includes the first slide rheostat and the 4th resistor, the first voltage input
End is connected with the first end of first slide rheostat, and the second end of first slide rheostat passes through the 4th resistance
Device is grounded；The first voltage output end is connected with the sliding end of first slide rheostat, first slide rheostat
The second end and the 4th resistor between be connected with the second voltage output end.
Preferably, the bleeder circuit includes the second slide rheostat and the 3rd slide rheostat, and described second slides
Rheostatic first end is connected with the first voltage input, and the second end of second slide rheostat is slided with the described 3rd
Dynamic rheostatic first end connection, the second end ground connection of the 3rd slide rheostat, the slip of second slide rheostat
End is connected with the first voltage output end, and the sliding end of second slide rheostat connects with the second voltage output end
Connect.
Further, the voltage comparator circuit also includes the 5th resistor, the positive pole of first diode, described the
The positive pole of one diode and the voltage signal output end are by the 5th resistor and the second voltage input
Connection.
A kind of application circuit, it includes voltage comparator circuit as described above.
A kind of electronic installation, it includes voltage comparator circuit as described above.
The utility model provide the voltage comparator circuit, the application circuit including the voltage comparator circuit with
And the electronic installation including the voltage comparator circuit, by by the inverting input of second operational amplifier and institute
The connection of second voltage output end is stated, the output end of second operational amplifier is connected with the negative pole of second diode,
The in-phase input end of first operational amplifier and output voltage is higher than the output voltage of the second voltage output end
The first voltage output end connection, the negative pole of the output end of first operational amplifier and first diode is connected
Connect, and by the inverting input of the inverting input of first operational amplifier and second operational amplifier respectively with
Voltage signal inputs connection, and the positive pole of first diode, the positive pole of first diode and described
Voltage signal output end is connected with the first voltage input；So when the input voltage of the voltage signal inputs is small
In the first voltage output end output voltage and more than second output end output voltage when, first computing is put
The output end of big device just exports in-phase voltage with the output end of second amplifier, at this moment first diode and described the
(voltage signal of i.e. described first voltage input can not be by first diode and the described first fortune for the cut-off of two diodes
Calculate amplifier to enter into the bleeder circuit of ground connection, can not be entered with second operational amplifier by second diode
Enter in the bleeder circuit of ground connection), the voltage signal of so described second voltage input can only export the voltage signal
Output end, i.e., described voltage signal output end output high level；When the input voltage of the voltage signal inputs is more than described
During the output voltage of first voltage output end, the output end of first operational amplifier just exports in-phase voltage and described second
The output end output reverse voltage of amplifier, first diode current flow and second diode end, and at this moment described the
The voltage signal of two voltage input ends just flows to described point of ground connection by first diode, first operational amplifier
Volt circuit, so that voltage signal output end output low level；Similarly, when the input voltage of the voltage signal inputs is small
When the output voltage of the second voltage output end, the voltage signal output end exports low level.As can be seen here, this practicality
Novel circuit configuration is simple, can just realize the ratio of voltage in special chip or using specific chip without being integrated into
Relatively work, therefore low production cost and using flexible.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, below will be attached to what is used needed for implementation method
Figure is briefly described, it should be apparent that, drawings in the following description are only some implementation methods of the present utility model, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structural representation of voltage comparator circuit that the utility model embodiment is provided；
Fig. 2 is the structural representation of a kind of preferred voltage comparator circuit that the utility model embodiment is provided；
Fig. 3 is the structural representation of the preferred voltage comparator circuit of another kind that the utility model embodiment is provided；
Fig. 4 is the structural representation of the preferred voltage comparator circuit of another kind that the utility model embodiment is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Please participate in Fig. 1, a kind of voltage comparator circuit, it includes the first operational amplifier 1, the second operational amplifier 2, first
Diode D1, the second diode D2, voltage signal inputs Vn, voltage signal output end Vout, first voltage input Un1,
The bleeder circuit 3 of second voltage input Un2, first voltage output end Uo1, second voltage output end Uo2 and ground connection；It is described
First voltage input Un1 is connected by the bleeder circuit 3 with the first voltage output end Uo1, second voltage output end Uo2
Connect, the output voltage of the first voltage output end Uo1 is higher than the output voltage of the second voltage output end Uo2；Described
The in-phase input end of one operational amplifier 1 is connected with the first voltage output end Uo1, first operational amplifier 1 it is anti-
Phase input is connected with the voltage signal inputs Vn, the output end of first operational amplifier 1 and the one or two pole
The negative pole connection of pipe D1；The inverting input of second operational amplifier 2 is connected with the second voltage output end Uo2, institute
The in-phase input end for stating the second operational amplifier 2 is connected with the voltage signal inputs Vn, second operational amplifier 2
Output end is connected with the negative pole of the second diode D2；The positive pole of the first diode D1, the second diode D2
Positive pole and the voltage signal output end Vout are connected with the second voltage input Un2.
Wherein, the bleeder circuit 3 is used to for the voltage signal of the first voltage input Un1 to be divided into two voltages
Different voltage signal and by the two voltage signals respectively from the first voltage output end being connected with the bleeder circuit 3
Uo1 and the second voltage output end Uo2 are exported, and the voltage signal of the first voltage output end Uo1 voltage ratio institute
The voltage for stating the voltage signal of second voltage output end Uo2 is high.
In the present embodiment, it is necessary to explanation, the quantity of the first diode D1 and the second diode D2
Can be one or more, be not specifically limited herein.
It is connected with the second voltage output end Uo2 by by the inverting input of second operational amplifier 2, by institute
The output end for stating the second operational amplifier 2 is connected with the negative pole of the second diode D2, by first operational amplifier 1
In-phase input end and the output voltage first voltage output end higher than the output voltage of the second voltage output end Uo2
Uo1 is connected, and the negative pole of the output end of first operational amplifier 1 and the first diode D1 is connected, and by described the
The inverting input of the inverting input of one operational amplifier 1 and second operational amplifier 2 is believed with the voltage respectively
Number input Vn connection, and the positive pole of the first diode D1, the positive pole and the voltage of the first diode D1
Signal output part Vout is connected with the first voltage input Un1；So when the input of the voltage signal inputs Vn
It is described when output voltage of the voltage less than the first voltage output end Uo1 and the output voltage more than second output end
The output end of the first operational amplifier 1 just exports in-phase voltage with the output end of second amplifier, and at this moment the described 1st
Pole pipe D1 and the second diode D2 ends that (voltage signal of i.e. described second voltage input Un2 can not be by described
One diode D1 is entered into the bleeder circuit 3 of ground connection with first operational amplifier 1, can not be by the two or two pole
Pipe D2 is entered into the bleeder circuit 3 of ground connection with second operational amplifier 2), so described first voltage input Un1's
Voltage signal can only export the voltage signal output end Vout, i.e., described voltage signal output end Vout outputs high level；
When the output voltage of the input voltage more than the first voltage output end Uo1 of the voltage signal inputs Vn, described the
The output end of one operational amplifier 1 just exports the output end output reverse voltage of in-phase voltage and second amplifier, described
First diode D1 is turned on and the second diode D2 ends, and at this moment the voltage signal of the second voltage input Un2 is just
The bleeder circuit 3 of ground connection is flowed to by the first diode D1, first operational amplifier 1, so that the voltage
Signal output part Vout exports low level；Similarly, when the input voltage of the voltage signal inputs Vn is less than the described second electricity
During the output voltage of pressure output end Uo2, the voltage signal output end Vout exports low level.As can be seen here, the utility model
Circuit structure is simple, can just realize the comparing work of voltage in special chip or using specific chip without being integrated into
Make, therefore low production cost and using flexible.
For the ease of to understanding of the present utility model, some preferred embodiments of the present utility model being provided herein：
The first preferred embodiment：
Fig. 2 is referred to, the bleeder circuit 3 includes first resistor device R1, second resistance device R2 and 3rd resistor device R3,
The first voltage input Un1, the first resistor device R1, the second resistance device R2 are with the 3rd resistor device R3 successively
It is connected in series and the second resistance device R2 is grounded by the 3rd resistor, the first resistor device R1 and the second resistance
The first voltage output end Uo1 is connected between device R2, is connected between the second resistance device R2 and the 3rd resistor device R3
It is connected to the second voltage output end Uo2.
It should be noted that the first resistor device R1, second resistance device R2 and 3rd resistor device R3 can be one
Or it is multiple, it is not specifically limited herein.
In the preferred embodiment, by by the first voltage input Un1, the first resistor device R1, described
Two resistor R2 are sequentially connected in series with the 3rd resistor device R3, and by the second resistance device R2 by the 3rd resistor
Ground connection, is connected with first voltage the output end Uo1, Er Qiesuo between the first resistor device R1 and the second resistance device R2
State and the second voltage output end Uo2 is connected between second resistance device R2 and the 3rd resistor device R3.So, described first
The voltage signal of voltage input end Un1 sequentially passes through the first resistor device R1, the second resistance device R2 with the described 3rd electricity
Resistance device R3, so second resistance device R2 and institute described in voltage ratio between the first resistor device R1 and the second resistance device R2
The voltage stated between 3rd resistor device R3 is high, i.e., second voltage output end described in the voltage ratio of described first voltage output end Uo1
The voltage of Uo2 is high.When the input voltage of the voltage signal inputs Vn is lower than the voltage of the first voltage output end Uo1 and
When voltage than the second voltage output end Uo2 is low, the output end of first operational amplifier 1 and second amplifier
Output end just export in-phase voltage, at this moment the first diode D1 and the second diode D2 cut-off (i.e. described first
The voltage signal of voltage input end Un1 can not be entered into first operational amplifier 1 by the first diode D1 and connect
In the bleeder circuit 3 on ground, dividing for ground connection can not be entered into second operational amplifier 2 by the second diode D2
In volt circuit 3), the voltage signal of so described second voltage input Un2 can only export the voltage signal output end
Vout, i.e., described voltage signal output end Vout outputs high level；When the input voltage of the voltage signal inputs Vn is more than
During the voltage of the first voltage output end Uo1, the output end of first operational amplifier 1 just exports in-phase voltage and described
The output end output reverse voltage of the second amplifier, the first diode D1 is turned on and the second diode D2 ends, this
The voltage signal of Shi Suoshu second voltage inputs Un2 is just flowed by the first diode D1, first operational amplifier 1
To the bleeder circuit 3 of ground connection, so that voltage signal output end Vout output low levels；Similarly, when the voltage is believed
During voltage of the input voltage of number input Vn less than the second voltage output end Uo2, the voltage signal output end Vout
Output low level.As can be seen here, the utility model circuit structure is simple, without being integrated into special chip or using special
Fixed chip can just realize the comparing work of voltage, therefore low production cost and using flexible.
Second preferred embodiment：
Fig. 3 is referred to, the bleeder circuit 3 includes the first slide rheostat Rp1 and the 4th resistor R4, described first
Voltage input end Un1 is connected with the first end of the first slide rheostat Rp1, and the second of the first slide rheostat Rp1
End is grounded by the 4th resistor R4；The slip of the first voltage output end Uo1 and the first slide rheostat Rp1
End connection, the second voltage is connected between second end of the first slide rheostat Rp1 and the 4th resistor R4
Output end Uo2.
It should be noted that the 4th resistor R4 can be one or more, the first slide rheostat Rp1
One or more resistor can also be connected between the first voltage input Un1, be not specifically limited herein.
In the preferred embodiment, by by the first voltage input Un1 with the first slide rheostat Rp1's
First end is connected, by second end of the first slide rheostat Rp1 by the 4th resistor R4 ground connection, and by described the
One voltage output end Uo1 is connected with the sliding end of the first slide rheostat Rp1, and the first slide rheostat Rp1
The second end and the 4th resistor R4 between be connected with the second voltage output end Uo2.So, the first voltage is defeated
Enter to hold the voltage signal of Un1 to sequentially pass through the first end of the first slide rheostat Rp1, sliding end, the second end and described
First slides described in voltage ratio between 4th resistor R4, and the first end and sliding end of the first slide rheostat Rp1
Second end of rheostat Rp1 is high with the voltage of the 4th resistor R4, i.e., the voltage ratio institute of described first voltage output end Uo1
The voltage for stating second voltage output end Uo2 is high.When the input voltage of the voltage signal inputs Vn is more defeated than the first voltage
Go out to hold the voltage of Uo1 low and it is lower than the voltage of the second voltage output end Uo2 when, the output of first operational amplifier 1
End just exports in-phase voltage with the output end of second amplifier, at this moment the first diode D1 and second diode
(voltage signal of i.e. described first voltage input Un1 can not be by the first diode D1 and the described first fortune for D2 cut-offs
Amplifier 1 is calculated to enter into the bleeder circuit 3 of ground connection, can not be by the second diode D2 and second operation amplifier
Device 2 is entered into the bleeder circuit 3 of ground connection), the voltage signal of so described second voltage input Un2 can only export described
Voltage signal output end Vout, i.e., described voltage signal output end Vout outputs high level；As the voltage signal inputs Vn
Input voltage more than the first voltage output end Uo1 voltage when, the output end of first operational amplifier 1 is just exported
The output end output reverse voltage of in-phase voltage and second amplifier, the first diode D1 conducting and the described 2nd 2
Pole pipe D2 ends, and at this moment the voltage signal of the second voltage input Un2 just passes through the first diode D1, described first
The bleeder circuit 3 of the flow direction ground connection of operational amplifier 1, so that voltage signal output end Vout output low levels；Similarly,
When the input voltage of the voltage signal inputs Vn is less than the voltage of the second voltage output end Uo2, the voltage letter
Number output end vo ut output low level.As can be seen here, the utility model circuit structure is simple, without being integrated into special chip
Or can just realize the comparing work of voltage using specific chip, therefore low production cost and using flexible.
The third preferred embodiment：
Fig. 4 is referred to, the bleeder circuit 3 includes the second slide rheostat Rp2 and the 3rd slide rheostat Rp3, institute
The first end for stating the second slide rheostat Rp2 is connected with the first voltage input Un1, the second slide rheostat Rp2
The second end be connected with the first end of the 3rd slide rheostat Rp3, the 3rd slide rheostat Rp3 second termination
Ground, the sliding end of the second slide rheostat Rp2 is connected with the first voltage output end Uo1, and described second slides variable resistance
The sliding end of device Rp2 is connected with the second voltage output end Uo2.
It should be noted that between the second slide rheostat Rp2 and the first voltage input Un1, described
One or more resistor can also be connected between two slide rheostat Rp2 and the 3rd slide rheostat Rp3,
This is not specifically limited.
In the preferred embodiment, by the way that the first end of the second slide rheostat Rp2 is defeated with the first voltage
Enter and hold Un1 to connect, second end of the second slide rheostat Rp2 is connected with the first end of the 3rd slide rheostat Rp3
Connect, second end of the 3rd slide rheostat Rp3 be grounded, by the sliding end of the second slide rheostat Rp2 with it is described
First voltage output end Uo1 is connected, and by the sliding end of the second slide rheostat Rp2 and the second voltage output end
Uo2 is connected.So, the voltage signal of the first voltage input Un1 sequentially passes through the second slide rheostat Rp2 and institute
State the 3rd slide rheostat Rp3, and the 3rd slide rheostat described in the voltage ratio of the sliding end of the second slide rheostat Rp2
The voltage of the sliding end of Rp3 is high, i.e., second voltage output end Uo2 described in the voltage ratio of described first voltage output end Uo1
Voltage is high.When the input voltage of the voltage signal inputs Vn is lower than the voltage of the first voltage output end Uo1 and compares institute
State second voltage output end Uo2 voltage it is low when, the output end of first operational amplifier 1 is defeated with second amplifier
Go out end just output in-phase voltage, at this moment the first diode D1 and the second diode D2 ends (i.e. described first voltage
The voltage signal of input Un1 can not enter into ground connection by the first diode D1 with first operational amplifier 1
In bleeder circuit 3, the partial pressure electricity of ground connection can not be entered into second operational amplifier 2 by the second diode D2
In road 3), the voltage signal of so described second voltage input Un2 can only export the voltage signal output end Vout, i.e.,
The voltage signal output end Vout exports high level；When the input voltage of the voltage signal inputs Vn is more than described first
During the voltage of voltage output end Uo1, the output end of first operational amplifier 1 just exports in-phase voltage and second amplification
The output end output reverse voltage of device, the first diode D1 conducting and the second diode D2 ends, at this moment described the
The voltage signal of two voltage input end Un2 just flows to ground connection by the first diode D1, first operational amplifier 1
The bleeder circuit 3, so that voltage signal output end Vout output low levels；Similarly, when the voltage signal inputs
When the input voltage of Vn is less than the voltage of the second voltage output end Uo2, the voltage signal output end Vout exports low electricity
It is flat.As can be seen here, the utility model circuit structure is simple, without being integrated into special chip or using specific chip
Can just realize the comparing work of voltage, therefore low production cost and using flexible.
Such scheme is further improved, Fig. 1,2,3 and 4 are referred to, the voltage comparator circuit also includes the 5th electricity
Resistance device R5, the positive pole of the first diode D1, the positive pole and the voltage signal output end of the first diode D1
Vout is connected by the 5th resistor R5 with the first voltage input Un1.Wherein, the 5th resistor R5 can
To play a part of current limliting step-down.It should be noted that the 5th resistor R5 can be one or more, do not do herein
It is specific to limit.
It should be noted that the first voltage input Un1 and second voltage input Un2 can be same
Voltage input end, or two different voltage input ends, is not specifically limited herein.
On the other hand the utility model provides a kind of application circuit, and it includes voltage comparator circuit as described above.
In the utility model embodiment, because the circuit applies above-mentioned voltage comparator circuit, institute can be caused
The structure of stating the voltage comparator circuit in circuit is simpler, low production cost and using flexible.
On the other hand the utility model provides a kind of electronic installation, and it includes voltage comparator circuit as described above.
In the utility model embodiment, the above-mentioned voltage comparator circuit due to the electronic device applications can make
The voltage comparator circuit in the electronic installation structure is simpler, low production cost and using flexible.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any those skilled in the art in technical scope disclosed in the utility model, the change that can be readily occurred in
Change or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with described
Scope of the claims is defined.
Claims (7)
1. a kind of voltage comparator circuit, it is characterised in that including the first operational amplifier, the second operational amplifier, the one or two pole
Pipe, the second diode, voltage signal inputs, voltage signal output end, first voltage input, second voltage input,
The bleeder circuit of one voltage output end, second voltage output end and ground connection；
The first voltage input is connected by the bleeder circuit with the first voltage output end, second voltage output end
Connect, the output voltage of the first voltage output end is higher than the output voltage of the second voltage output end；
The in-phase input end of first operational amplifier is connected with the first voltage output end, first operational amplifier
Inverting input be connected with the voltage signal inputs, the output end of first operational amplifier and the one or two pole
The negative pole connection of pipe；
The inverting input of second operational amplifier is connected with the second voltage output end, second operational amplifier
In-phase input end be connected with the voltage signal inputs, the output end of second operational amplifier and the two or two pole
The negative pole connection of pipe；
The positive pole of first diode, the positive pole of second diode and the voltage signal output end are with described
Two voltage input ends are connected.
2. voltage comparator circuit according to claim 1, it is characterised in that the bleeder circuit include first resistor device,
Second resistance device and 3rd resistor device, the first voltage input, the first resistor device, the second resistance device and institute
State that 3rd resistor device is sequentially connected in series and the second resistance device is grounded by the 3rd resistor, the first resistor device with
The first voltage output end is connected between the second resistance device, between the second resistance device and the 3rd resistor device
It is connected with the second voltage output end.
3. voltage comparator circuit according to claim 1, it is characterised in that the bleeder circuit includes that first slides variable resistance
Device and the 4th resistor, the first voltage input are connected with the first end of first slide rheostat, and described first
Second end of slide rheostat passes through the 4th resistance-grounded system；The first voltage output end slides variable resistance with described first
The sliding end connection of device, is connected with second electricity between the second end of first slide rheostat and the 4th resistor
Pressure output end.
4. voltage comparator circuit according to claim 1, it is characterised in that the bleeder circuit includes that second slides variable resistance
Device and the 3rd slide rheostat, the first end of second slide rheostat are connected with the first voltage input, described
Second end of the second slide rheostat is connected with the first end of the 3rd slide rheostat, and the of the 3rd slide rheostat
Two ends are grounded, and the sliding end of second slide rheostat is connected with the first voltage output end, and described second slides variable resistance
The sliding end of device is connected with the second voltage output end.
5. according to any described voltage comparator circuit of Claims 1-4, it is characterised in that described also including the 5th resistor
The positive pole of the first diode, the positive pole of first diode and the voltage signal output end pass through the 5th resistance
Device is connected with the second voltage input.
6. a kind of application circuit, it is characterised in that including the voltage comparator circuit as described in claim 1 to 5 any one.
7. a kind of electronic installation, it is characterised in that including the voltage comparator circuit as described in claim 1 to 5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251524.9U CN206211959U (en) | 2016-11-14 | 2016-11-14 | A kind of voltage comparator circuit, application circuit are with electronic installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251524.9U CN206211959U (en) | 2016-11-14 | 2016-11-14 | A kind of voltage comparator circuit, application circuit are with electronic installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211959U true CN206211959U (en) | 2017-05-31 |
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ID=58750371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621251524.9U Active CN206211959U (en) | 2016-11-14 | 2016-11-14 | A kind of voltage comparator circuit, application circuit are with electronic installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206211959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110896575A (en) * | 2019-12-17 | 2020-03-20 | 常州机电职业技术学院 | LED three-section voltage display circuit and LED display method |
-
2016
- 2016-11-14 CN CN201621251524.9U patent/CN206211959U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110896575A (en) * | 2019-12-17 | 2020-03-20 | 常州机电职业技术学院 | LED three-section voltage display circuit and LED display method |
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