CN209088915U - Enhanced bipolarity proximity Hall switch - Google Patents
Enhanced bipolarity proximity Hall switch Download PDFInfo
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- CN209088915U CN209088915U CN201822191948.6U CN201822191948U CN209088915U CN 209088915 U CN209088915 U CN 209088915U CN 201822191948 U CN201822191948 U CN 201822191948U CN 209088915 U CN209088915 U CN 209088915U
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Abstract
The utility model relates to enhanced bipolarity proximity Hall switch, this converts diamagnetic interference circuit, bipolar signal processing circuit, Hall bipolar drive circuit and digital signal output circuit including high frequency LC oscillating circuit, F/V close to switch；Bipolar signal processing circuit is made of operational amplifier, resistance R14, R17, adjustable resistance R25, capacitor C8；Hall bipolar drive electricity routing resistance R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, triode V1, V2, V3, V4, V5, V6 composition.The utility model is directed to the characteristics of magnetic field polarized and rule, and by distinguishing the design of polarity of the magnetic field circuit accordingly, auxiliary phase answers the use of material envelope, so that the only detection to the pole magnet N and the pole S simultaneously is realized, so that realizing reliable and stable detection close to switch.
Description
Technical field:
The utility model belongs to industrial automation industry non-contact type approach switch technical field, refers in particular to a kind of enhanced double
Polarity proximity Hall switch.
Background technique:
Background 1: servo motor, frequency converter, especially high-power servo motor, big-power transducer are large-scale in factory
Popularization and application.Servo motor, frequency converter can generate a large amount of magnetic field, these magnetic fields in factory's use site while work
Presence will affect scene close to switch normal work, to generate interference, make the detection close to switch generate malfunction or
Person's inaccuracy.
Background 2: welding profession, lifting industry, electronics furnace equipment.When these equipment work normally, high current is needed, greatly
The presence of electric current will generate a large amount of magnetic field in factory's use site, the presence in these magnetic fields can shadow according to faraday's rule
The normal work for ringing scene close to switch makes the detection close to switch generate malfunction or inaccuracy to generate interference.
Background 3: it is original close to switch when detecting, be only only to discriminate between whether there is or not, if in place, magnetic can not be distinguished
The polarity of field.
It is i.e. common just not have differentiation polarity of the magnetic field due to no electromagnetic field polarity design of differentiation accordingly close to switch
Ability will have error detection not work even, cause damages close to switch in this way in strong electromagnetic occasion when special.
Utility model content:
The purpose of this utility model is to be to overcome the above-mentioned shortcoming of the prior art, provides a kind of enhanced bipolarity
Proximity Hall switch.
The technical solution adopted in the utility model is: a kind of enhanced bipolarity proximity Hall switch comprising inside set sense
Answer the probe body of electrode and shielded layer, this close to switch further include high frequency LC oscillating circuit, F/V convert diamagnetic interference circuit,
Bipolar signal processing circuit, Hall bipolar drive circuit and digital signal output circuit, wherein
The high frequency LC oscillating circuit by first comparator, resistance R16, R24, R33, form, wherein first comparator
Positive input terminal connect resistance R24, resistance R24 connects with R33 is followed by power supply；The negative input end of first comparator connects resistance
R16；
The F/V converts diamagnetic interference circuit by the second comparator, resistance R26, adjustable resistance R23, capacitor C16, C17 group
At；Wherein, two fixing ends of adjustable resistance R23 are connect with the positive input terminal of the second comparator and output end respectively, adjustable electric
The adjustable side of resistance R23 is connect with the output end of first comparator in high frequency LC oscillating circuit；The negative input end of second comparator is logical
Resistance R26 is crossed to connect with the negative input end of resistance R16 and first comparator in high frequency LC oscillating circuit；Resistance R26 and electricity
It is grounded after the common end connection capacitor C16 of resistance R16；One end of capacitor C17 connects the second comparator, other end ground connection；
The output end of first comparator, the second comparator output end connect respectively with bipolar signal processing circuit；
The bipolar signal processing circuit is made of operational amplifier, resistance R14, R17, adjustable resistance R25, capacitor C8；
Wherein, the positive input terminal of operational amplifier connects the common end of resistance R14, R17 and capacitor C8, the other end of resistance R14 simultaneously
It is connect with the output end of first comparator, the other end of resistance R17 is connect with the output end of the second comparator, and capacitor C8's is another
End is then grounded；The negative input end of operational amplifier is connect with the adjustable side of adjustable resistance R25, a fixation of adjustable resistance R25
End ground connection, another fixing end connect power supply；The output end and Hall bipolar drive circuit connection of operational amplifier；
The Hall bipolar drive electricity routing resistance R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, triode
V1, V2, V3, V4, V5, V6 composition, wherein resistance R1, R2 series connection and the outer termination power of resistance R2, the outer end R1 ground connection；Resistance R3,
One end of R4, R5, R6 are commonly connected to the common end of resistance R1, R2, the other end of resistance R3, R4, R5, R6 respectively with triode
V1, V2, the collector connection of V4, V5, the emitter of triode V1, V2 are connect with resistance R8, R9 respectively, and resistance R8, R9's is another
One end and one end of R10 connect jointly, resistance R10 other end ground connection；The emitter of triode V4, V5 connect resistance R11 simultaneously
One end, resistance R11 other end ground connection；
The base stage of triode V1 is connect with the one end resistance R7, the other end of resistance R7 and the fortune in bipolar signal processing circuit
Calculate amplifier out connection；The base stage of triode V2 also connects with the operational amplifier output terminal in bipolar signal processing circuit
It connects；
The base stage of triode V3 is connect with the collector of triode V2, the emitter of triode V3 and the base stage of triode V4
Connection, the collector of triode V3 are connect with the collector of triode V4；
The base stage of triode V6 is connect with the collector of triode V1, the emitter of triode V6 and the base stage of triode V5
Connection, the collector of triode V6 are connect with the collector of triode V5；
The digital signal output circuit is by diode D1, D2, reflective diode D3, triode V7, resistance R12, R13 group
It is connected jointly at the cathode of, wherein the emitter of one end of resistance R12, R13 and triode V7, diode D1, and and Hall
The collector connection of triode V6 in bipolar drive circuit；The other end of resistance R13 connects power supply；The other end of resistance R12
It is connect with the anode of light emitting diode D3, the cathode ground connection of light emitting diode D3；The cathode and diode D1 of diode D2 is just
Pole series connection, the anode of diode D2 connect power supply；Section between the base stage connection resistance R12 and light emitting diode D3 of triode V7
Point, the collector of triode V7 is connect with the cathode of diode D2 and connection signal output port.
The utility model is directed to the characteristics of magnetic field polarized and rule, by distinguishing setting for polarity of the magnetic field circuit accordingly
Meter, auxiliary phase answer the use of material envelope, so that the only detection to the pole magnet N and the pole S simultaneously is realized, so that realizing close to switch
Reliable and stable detection, also just solves the problems, such as electromagnetic interference, and same size close to switch, cost is imported product
50%, a large amount of purchase cost is reduced for user.
The utility model is primarily useful for Automobile Welding industry, electronic welding industry, the welding professions such as plastic cement welding and
The equipment such as capacitor smelting furnace, lifting equipment, servo motor, frequency converter overcome electromagnetism to the interference close to switch, improve precision.
Detailed description of the invention:
Fig. 1 is structural block diagram of the utility model close to switch；
Fig. 2 is circuit diagram of the utility model close to switch.
Specific embodiment:
The present invention will be further described with attached drawing combined with specific embodiments below.
As shown in FIG. 1 to FIG. 2, a kind of enhanced bipolarity proximity Hall switch described in the utility model comprising interior
If the probe body 1 of induction electrode 11 and shielded layer 12, this close to switch further include high frequency LC oscillating circuit 2, F/V conversion it is diamagnetic
Interfere circuit 3, bipolar signal processing circuit 4, Hall bipolar drive circuit 5 and digital signal output circuit 6, wherein
The high frequency LC oscillating circuit 2 by first comparator 21, resistance R16, R24, R33, form, wherein first ratio
Positive input terminal compared with device 21 connects resistance R24, and resistance R24 connects with R33 is followed by power supply；The negative input end of first comparator 21 connects
Connecting resistance R16；
The F/V convert diamagnetic interference circuit 3 by the second comparator 31, resistance R26, adjustable resistance R23, capacitor C16,
C17 composition；Wherein, two fixing ends of adjustable resistance R23 are connect with the positive input terminal of the second comparator 31 and output end respectively,
The adjustable side of adjustable resistance R23 is connect with the output end of first comparator 21 in high frequency LC oscillating circuit；Second comparator 31
Negative input end is connected by the negative input end of resistance R16 and first comparator 21 in resistance R26 and high frequency LC oscillating circuit 2
It connects；Resistance R26 is grounded after connecting capacitor C16 with the common end of resistance R16；One end of capacitor C17 connects the second comparator 31, separately
One end ground connection；
The output end of first comparator 21, the second comparator 31 output end connect respectively with bipolar signal processing circuit 4；
The bipolar signal processing circuit 4 is by operational amplifier 41, resistance R14, R17, adjustable resistance R25, capacitor C8 group
At；Wherein, the positive input terminal of operational amplifier 41 connects the common end of resistance R14, R17 and capacitor C8 simultaneously, and resistance R14's is another
One end is connect with the output end of first comparator 21, and the other end of resistance R17 is connect with the output end of the second comparator 31, capacitor
The other end of C8 is then grounded；The negative input end of operational amplifier 41 is connect with the adjustable side of adjustable resistance R25, adjustable resistance R25
Fixing end ground connection, another fixing end connects power supply；The output end and Hall bipolar drive circuit 5 of operational amplifier 41
Connection；
The Hall bipolar drive circuit 5 is by resistance R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, three poles
Pipe V1, V2, V3, V4, V5, V6 composition, wherein resistance R1, R2 series connection and the outer termination power of resistance R2, the outer end R1 ground connection；Resistance
One end of R3, R4, R5, R6 are commonly connected to the common end of resistance R1, R2, and the other end of resistance R3, R4, R5, R6 are respectively with three
Pole pipe V1, V2, the collector connection of V4, V5, the emitter of triode V1, V2 are connect with resistance R8, R9 respectively, resistance R8, R9
The other end and one end of R10 connect jointly, resistance R10 other end ground connection；The emitter of triode V4, V5 connect resistance simultaneously
The one end R11, resistance R11 other end ground connection；
The base stage of triode V1 is connect with the one end resistance R7, in the other end and bipolar signal processing circuit 4 of resistance R7
The connection of 41 output end of operational amplifier；The base stage of triode V2 is also defeated with the operational amplifier 41 in bipolar signal processing circuit 4
Outlet connection；
The base stage of triode V3 is connect with the collector of triode V2, the emitter of triode V3 and the base stage of triode V4
Connection, the collector of triode V3 are connect with the collector of triode V4；
The base stage of triode V6 is connect with the collector of triode V1, the emitter of triode V6 and the base stage of triode V5
Connection, the collector of triode V6 are connect with the collector of triode V5；
The digital signal output circuit 6 is by diode D1, D2, reflective diode D3, triode V7, resistance R12, R13
Composition, wherein the emitter of one end of resistance R12, R13 and triode V7, diode D1 cathode connect jointly, and with suddenly
The collector connection of triode V6 in your bipolar drive circuit 5；The other end of resistance R13 connects power supply；Resistance R12's is another
It holds and is connect with the anode of light emitting diode D3, the cathode ground connection of light emitting diode D3；The cathode of diode D2 is with diode D1's
Anode series connection, the anode of diode D2 connect power supply；Section between the base stage connection resistance R12 and light emitting diode D3 of triode V7
Point, the collector of triode V7 is connect with the cathode of diode D2 and connection signal output port.
The utility model is directed to the characteristics of magnetic field polarized and rule, by distinguishing setting for polarity of the magnetic field circuit accordingly
Meter, auxiliary phase answer the use of material envelope, so that the only detection to the pole magnet N and the pole S simultaneously is realized, so that realizing close to switch
Reliable and stable detection, also just solves the problems, such as electromagnetic interference, and same size close to switch, cost is imported product
50%, a large amount of purchase cost is reduced for user.
The utility model is primarily useful for Automobile Welding industry, electronic welding industry, the welding professions such as plastic cement welding and
The equipment such as capacitor smelting furnace, lifting equipment, servo motor, frequency converter overcome electromagnetism to the interference close to switch, improve precision.
Claims (1)
1. a kind of enhanced bipolarity proximity Hall switch comprising the probe body of induction electrode and shielded layer is inside set, it is special
Sign is: this further includes that high frequency LC oscillating circuit, F/V convert diamagnetic interference circuit, bipolar signal processing circuit, suddenly close to switch
That bipolar drive circuit and digital signal output circuit, wherein
The high frequency LC oscillating circuit by first comparator, resistance R16, R24, R33, form, wherein first comparator is just
Input terminal connects resistance R24, and resistance R24 connects with R33 is followed by power supply；The negative input end of first comparator connects resistance R16；
The F/V converts diamagnetic interference circuit and is made of the second comparator, resistance R26, adjustable resistance R23, capacitor C16, C17；
Wherein, two fixing ends of adjustable resistance R23 are connect with the positive input terminal of the second comparator and output end respectively, adjustable resistance
The adjustable side of R23 is connect with the output end of first comparator in high frequency LC oscillating circuit；The negative input end of second comparator passes through
Resistance R26 is connect with the negative input end of resistance R16 and first comparator in high frequency LC oscillating circuit；Resistance R26 and resistance
It is grounded after the common end connection capacitor C16 of R16；One end of capacitor C17 connects the second comparator, other end ground connection；
The output end of first comparator, the second comparator output end connect respectively with bipolar signal processing circuit；
The bipolar signal processing circuit is made of operational amplifier, resistance R14, R17, adjustable resistance R25, capacitor C8；Wherein,
The positive input terminal of operational amplifier connects the common end of resistance R14, R17 and capacitor C8, the other end of resistance R14 and first simultaneously
The output end of comparator connects, and the other end of resistance R17 is connect with the output end of the second comparator, and the other end of capacitor C8 then connects
Ground；The negative input end of operational amplifier is connect with the adjustable side of adjustable resistance R25, the fixing end ground connection of adjustable resistance R25,
Another fixing end connects power supply；The output end and Hall bipolar drive circuit connection of operational amplifier；
The Hall bipolar drive electricity routing resistance R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, triode V1,
V2, V3, V4, V5, V6 composition, wherein resistance R1, R2 series connection and the outer termination power of resistance R2, the outer end R1 ground connection；Resistance R3, R4,
One end of R5, R6 are commonly connected to the common end of resistance R1, R2, the other end of resistance R3, R4, R5, R6 respectively with triode V1,
The collector of V2, V4, V5 connect, and the emitter of triode V1, V2 are connect with resistance R8, R9 respectively, the other end of resistance R8, R9
It is connect jointly with one end of R10, resistance R10 other end ground connection；The emitter of triode V4, V5 connect the one end resistance R11 simultaneously,
Resistance R11 other end ground connection；
The base stage of triode V1 is connect with the one end resistance R7, and the other end and the operation in bipolar signal processing circuit of resistance R7 is put
Big device output end connection；The base stage of triode V2 is also connect with the operational amplifier output terminal in bipolar signal processing circuit；
The base stage of triode V3 is connect with the collector of triode V2, and the emitter of triode V3 and the base stage of triode V4 connect
It connects, the collector of triode V3 is connect with the collector of triode V4；
The base stage of triode V6 is connect with the collector of triode V1, and the emitter of triode V6 and the base stage of triode V5 connect
It connects, the collector of triode V6 is connect with the collector of triode V5；
The digital signal output circuit is made of diode D1, D2, reflective diode D3, triode V7, resistance R12, R13,
Wherein, the emitter of one end of resistance R12, R13 and triode V7, diode D1 cathode connect jointly, and it is double with Hall
The collector connection of triode V6 in polarity driven circuit；The other end of resistance R13 connects power supply；The other end of resistance R12 with
The anode connection of light emitting diode D3, the cathode ground connection of light emitting diode D3；The cathode of diode D2 and the anode of diode D1
Series connection, the anode of diode D2 connect power supply；Node between the base stage connection resistance R12 and light emitting diode D3 of triode V7,
The collector of triode V7 is connect with the cathode of diode D2 and connection signal output port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822191948.6U CN209088915U (en) | 2018-12-25 | 2018-12-25 | Enhanced bipolarity proximity Hall switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822191948.6U CN209088915U (en) | 2018-12-25 | 2018-12-25 | Enhanced bipolarity proximity Hall switch |
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| Publication Number | Publication Date |
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| CN209088915U true CN209088915U (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822191948.6U Active CN209088915U (en) | 2018-12-25 | 2018-12-25 | Enhanced bipolarity proximity Hall switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323083A (en) * | 2021-12-17 | 2022-04-12 | 上海艾为电子技术股份有限公司 | Hall sensing device and electronic equipment |
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2018
- 2018-12-25 CN CN201822191948.6U patent/CN209088915U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323083A (en) * | 2021-12-17 | 2022-04-12 | 上海艾为电子技术股份有限公司 | Hall sensing device and electronic equipment |
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