CN210135930U - Hall integrated sensor with bipolar output - Google Patents
Hall integrated sensor with bipolar output Download PDFInfo
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- CN210135930U CN210135930U CN201920982906.6U CN201920982906U CN210135930U CN 210135930 U CN210135930 U CN 210135930U CN 201920982906 U CN201920982906 U CN 201920982906U CN 210135930 U CN210135930 U CN 210135930U
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- 239000000758 substrate Substances 0.000 claims abstract description 14
- 230000006698 induction Effects 0.000 claims description 50
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005355 Hall effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 238000005316 response function Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a hall integrated sensor of bipolar output relates to hall sensor technical field, the utility model discloses a constant voltage power supply and hall voltage response substrate, differential amplifier circuit and the bipolar bistable trigger circuit that connects gradually, constant voltage power supply is connected with the power input VCC, and constant voltage power supply is used for providing stable operating voltage for hall voltage response substrate, differential amplifier circuit and bipolar bistable trigger circuit, and bipolar bistable trigger circuit is connected with S utmost point response output OUT1 and N utmost point response output OUT2, the utility model discloses a bipolar bistable trigger circuit realizes hall integrated sensor 'S bipolar output, has improved hall integrated sensor' S rate of utilization greatly, has enlarged application range.
Description
Technical Field
The utility model relates to a hall sensor technical field, more specifically relate to a hall integrated sensor of bipolar output.
Background
A hall sensor is a sensor that uses the hall effect of a semiconductor material for measurement. It can directly measure magnetic field and micro-displacement, and also can indirectly measure industrial production process parameters of liquid level, pressure and the like. The sensor has the unique advantages of no contact, no noise, long service life and the like, is widely applied to the fields of various position detection, speed detection, angle detection and the like, and is generally applied to various non-contact switch control, brushless motors and rotating speed detection systems.
The Hall integrated sensor integrates a Hall element and a signal processing circuit by utilizing a silicon integrated circuit process, cancels the boundary between the sensor and a measuring circuit, and realizes the integration of materials, elements and circuits. A common type of hall integrated sensor is based on a silicon material, and integrates a hall substrate generating a hall voltage and a circuit structure for signal processing on a chip, so as to realize a complete magnetic induction trigger response function. The hall substrate is designed based on the hall effect principle, responds to an external magnetic field signal, generates a hall voltage of an induction magnetic field on the hall substrate, and the voltage is amplified by an amplifying circuit in a chip and further processed in a post-stage circuit structure, and finally achieves the expected use requirement.
The conventional Hall integrated sensor is generally realized by single-chip integration, and comprises a Hall substrate, an operational amplifier, a signal processing unit, a trigger, an output unit and the like, the function of converting magnetic characteristics into electrical signals is realized, the conventional Hall integrated sensor is provided with three pressure welding points, namely a power supply VCC (voltage to current), a ground GND (ground) and an output Vout (voltage to ground), and only unipolar induction can be realized, namely only N-pole induction or S-pole induction, so that the conventional Hall integrated sensor is small in application range and single in application.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the problem that is the monopole response in order to solve current hall integrated sensor, application range is little, the utility model provides a hall integrated sensor of bipolar output.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
a bipolar output Hall integrated sensor comprises a stabilized voltage power supply, a Hall voltage sensing substrate, a differential amplification circuit and a bipolar bistable trigger circuit, wherein the Hall voltage sensing substrate, the differential amplification circuit and the bipolar bistable trigger circuit are sequentially connected with one another, the stabilized voltage power supply is connected with a power supply input end VCC, the stabilized voltage power supply is used for providing stable working voltage for the Hall voltage sensing substrate, the differential amplification circuit and the bipolar bistable trigger circuit, the bipolar bistable trigger circuit is connected with an S pole sensing output end OUT1 and an N pole sensing output end OUT2, bipolar output of the Hall integrated sensor is achieved through the bipolar bistable trigger circuit, and S pole sensing is achieved when leads are led OUT from the power supply input end VCC and the S pole sensing output end OUT 1; when the power supply input end VCC and the N pole induction output end OUT2 are led, N pole induction is realized; bipolar induction is achieved when the leads are taken from the power input VCC, the S-pole induction output OUT1 and the N-pole induction output OUT 2.
Further, the bipolar bistable trigger circuit is connected with an NPN triode Q1 and an NPN triode Q2, the NPN triode Q1 is connected with an S-pole sensing output end OUT1, the NPN triode Q2 is connected with an N-pole sensing output end OUT2, the NPN triode Q1 and the NPN triode Q2 are further connected with a ground end GND, and output signals of the bipolar bistable trigger circuit are amplified through the two NPN triodes, so that sensing signals output by the S-pole sensing output end OUT1 and the N-pole sensing output end OUT2 are stronger.
Furthermore, two output ends of the bipolar bistable trigger circuit are respectively connected with bases of an NPN triode Q1 and an NPN triode Q2, an S-pole induction output end OUT1 and an N-pole induction output end OUT2 are respectively connected with collectors of an NPN triode Q1 and an NPN triode Q2, and bases of an NPN triode Q1 and an NPN triode Q2 are respectively connected with a ground terminal GND.
Further, the bipolar bistable trigger circuit comprises a triode Q3-Q10 and a resistor R1-R2, and the specific circuit connection is as follows:
the collector electrodes of the triode Q3 and the triode Q6 are connected with the output end 2 of the regulated power supply, the base electrodes are respectively connected with the output end 3 of the differential circuit, the emitter electrode of the triode Q3 is connected with the output end 4 of the differential circuit and the resistor R1, and the emitter electrode of the triode Q6 is connected with the collector electrodes of the resistor R2 and the triode Q10;
the other end of the resistor R1 is connected with the collector of the triode Q5 and the base of the triode Q7, the other end of the resistor R2 is connected with the base of the triode Q5 and the collector of the triode Q7, and the emitting electrodes of the triode Q5 and the triode Q7 are both connected with the collector of the triode Q9;
the base electrode of the triode Q9 is connected with the output end 4 of the differential amplification circuit and the base electrode of the triode Q10, and the emitting electrodes of the triode Q9 and the triode Q10 are connected with the ground end GND;
the base of the triode Q5 is connected with the base of the triode Q4, the collector of the triode Q4 is connected with the base of the NPN triode Q1, the base of the triode Q7 is connected with the base of the triode Q8, and the collector of the triode Q8 is connected with the base of the NPN triode Q2.
The circuit principle of the utility model is that:
the bipolar bistable circuit adopts two NPN triodes Q5 and Q7 clamped with each other, when one NPN triode is conducted, the NPN triodes at symmetrical positions are clamped to a cut-off state due to the clamping action, the circuit is always in the original stable state under the action of no external trigger signal, and under the action of an external input trigger signal, the bistable circuit is turned from one stable state to the other stable state, so that two opposite output signals are realized.
The Hall integrated sensor of the utility model is provided with four pressure welding points, namely a power input end VCC, an S pole induction output end OUT1, an N pole induction output end OUT2 and a grounding end GND, and S pole induction is realized when leading wires from the power input end VCC, the S pole induction output end OUT1 and the grounding end GND; when the power supply input end VCC, the N pole induction output end OUT2 and the grounding end GND lead are connected, N pole induction is realized; when the power input end VCC, the S pole induction output end OUT1, the N pole induction output end OUT2 and the grounding end GND lead are simultaneously used, bipolar induction is realized, namely N pole and S pole magnetic fields can be simultaneously induced, and double output is realized.
The utility model has the advantages as follows:
1. the utility model discloses a hall integrated sensor is integrated to have bipolar bistable trigger circuit, draws forth S utmost point induction output OUT1 and N utmost point induction output OUT2 through bipolar bistable trigger circuit, has realized that can N utmost point induction but also can S utmost point induction on same chip, has improved hall integrated sensor' S rate of utilization greatly, enlarges application range.
2. The utility model discloses a bipolar bistable state trigger circuit is connected with NPN triode Q1 and NPN triode Q2, enlargies bipolar bistable state trigger circuit' S output signal through two NPN triodes for the inductive signal that S utmost point induction output OUT1 and N utmost point induction output OUT2 exported is stronger.
Drawings
Fig. 1 is a schematic structural diagram of a conventional hall integrated sensor.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic block diagram of the overall circuit of the present invention.
Fig. 4 is a schematic circuit diagram of the bipolar bistable flip-flop circuit of the present invention.
Detailed Description
For a better understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and the following embodiments.
Example 1
As shown in fig. 1, the conventional hall integrated sensor has three pads VCC, GND and Vout, and can only realize unipolar sensing, that is, only N-pole sensing or S-pole sensing, but the main circuit portions of the two sensing modes are the same, and only the high and low level outputs are opposite, so that the conventional hall integrated sensor can only be used in a single scene, and the application range is small.
As shown in fig. 3, the present embodiment provides a bipolar output hall integrated sensor, which includes a regulated power supply, a hall voltage sensing substrate, a differential amplifier circuit, and a bipolar bistable trigger circuit, the regulated power supply is connected to a power input VCC, the regulated power supply is used to provide stable operating voltages for the hall voltage sensing substrate, the differential amplifier circuit, and the bipolar bistable trigger circuit, the bipolar bistable trigger circuit is connected to an S-pole sensing output OUT1 and an N-pole sensing output OUT2, the regulated power supply, the hall voltage sensing substrate, and the differential amplifier circuit in the present embodiment all use the existing device models and circuit structures, the present embodiment improves the output circuit of the existing hall integrated sensor, and implements the bipolar output of the hall integrated sensor by using the bistable bipolar trigger circuit, when the leads are led from the power input VCC and the S-pole sensing output OUT1, s pole induction is realized; when the power supply input end VCC and the N pole induction output end OUT2 are led, N pole induction is realized; bipolar induction is achieved when the leads are taken from the power input VCC, the S-pole induction output OUT1 and the N-pole induction output OUT 2.
Example 2
The embodiment is further optimized based on embodiment 1, and specifically includes:
the bipolar bistable trigger circuit is connected with an NPN triode Q1 and an NPN triode Q2, the NPN triode Q1 is connected with an S pole induction output end OUT1, the NPN triode Q2 is connected with an N pole induction output end OUT2, the NPN triode Q1 and the NPN triode Q2 are further connected with a ground end GND, and output signals of the bipolar bistable trigger circuit are amplified through the two NPN triodes, so that induction signals output by the S pole induction output end OUT1 and the N pole induction output end OUT2 are stronger.
Example 3
The embodiment is further optimized based on the embodiment 2, and specifically includes:
two output ends of the bipolar bistable trigger circuit are respectively connected with bases of an NPN triode Q1 and an NPN triode Q2, an S pole induction output end OUT1 and an N pole induction output end OUT2 are respectively connected with collectors of an NPN triode Q1 and an NPN triode Q2, and bases of an NPN triode Q1 and an NPN triode Q2 are respectively connected with a ground end GND.
As shown in fig. 4, the bipolar bistable flip-flop circuit includes transistors Q3-Q10 and resistors R1-R2, and the specific circuit connections are as follows:
the collector electrodes of the triode Q3 and the triode Q6 are connected with the output end 2 of the regulated power supply, the base electrodes are respectively connected with the output end 3 of the differential circuit, the emitter electrode of the triode Q3 is connected with the output end 4 of the differential circuit and the resistor R1, and the emitter electrode of the triode Q6 is connected with the collector electrodes of the resistor R2 and the triode Q10;
the other end of the resistor R1 is connected with the collector of the triode Q5 and the base of the triode Q7, the other end of the resistor R2 is connected with the base of the triode Q5 and the collector of the triode Q7, and the emitting electrodes of the triode Q5 and the triode Q7 are both connected with the collector of the triode Q9;
the base electrode of the triode Q9 is connected with the output end 4 of the differential amplification circuit and the base electrode of the triode Q10, and the emitting electrodes of the triode Q9 and the triode Q10 are connected with the ground end GND;
the base of the triode Q5 is connected with the base of the triode Q4, the collector of the triode Q4 is connected with the base of the NPN triode Q1, the base of the triode Q7 is connected with the base of the triode Q8, and the collector of the triode Q8 is connected with the base of the NPN triode Q2.
As shown in fig. 2, the hall integrated sensor of this embodiment has four pressure pads, which are respectively a power input terminal VCC, an S-pole sensing output terminal OUT1, an N-pole sensing output terminal OUT2 and a ground terminal GND, and realizes S-pole sensing when leading from the power input terminal VCC, the S-pole sensing output terminal OUT1 and the ground terminal GND; when the power supply input end VCC, the N pole induction output end OUT2 and the grounding end GND lead are connected, N pole induction is realized; when the power input end VCC, the S pole induction output end OUT1, the N pole induction output end OUT2 and the grounding end GND lead are simultaneously used, bipolar induction is realized, namely N pole and S pole magnetic fields can be simultaneously induced, and double output is realized.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a hall integrated sensor of bipolar output, includes constant voltage power supply and the hall voltage induction substrate and the differential amplifier circuit that connect gradually, constant voltage power supply is connected with power input VCC, its characterized in that: the voltage stabilizing power supply is used for providing stable working voltage for the Hall voltage sensing substrate, the differential amplifying circuit and the bipolar bistable trigger circuit, and the bipolar bistable trigger circuit is connected with an S pole sensing output end OUT1 and an N pole sensing output end OUT 2.
2. The bipolar output hall integrated sensor of claim 1 wherein: the bipolar bistable trigger circuit is connected with an NPN triode Q1 and an NPN triode Q2, the NPN triode Q1 is connected with an S pole induction output end OUT1, the NPN triode Q2 is connected with an N pole induction output end OUT2, and the NPN triode Q1 and the NPN triode Q2 are further connected with a ground end GND.
3. A bipolar output hall integrated sensor as set forth in claim 2, wherein: two output ends of the bipolar bistable trigger circuit are respectively connected with bases of an NPN triode Q1 and an NPN triode Q2, an S pole induction output end OUT1 and an N pole induction output end OUT2 are respectively connected with collectors of an NPN triode Q1 and an NPN triode Q2, and bases of an NPN triode Q1 and an NPN triode Q2 are respectively connected with a ground end GND.
4. A bipolar output hall integrated sensor as claimed in claim 2 or 3, wherein: the bipolar bistable trigger circuit comprises triodes Q3-Q10 and resistors R1-R2, and the specific circuit connection is as follows:
the collector electrodes of the triode Q3 and the triode Q6 are connected with the output end 2 of the regulated power supply, the base electrodes are respectively connected with the output end 3 of the differential circuit, the emitter electrode of the triode Q3 is connected with the output end 4 of the differential circuit and the resistor R1, and the emitter electrode of the triode Q6 is connected with the collector electrodes of the resistor R2 and the triode Q10;
the other end of the resistor R1 is connected with the collector of the triode Q5 and the base of the triode Q7, the other end of the resistor R2 is connected with the base of the triode Q5 and the collector of the triode Q7, and the emitting electrodes of the triode Q5 and the triode Q7 are both connected with the collector of the triode Q9;
the base electrode of the triode Q9 is connected with the output end 4 of the differential amplification circuit and the base electrode of the triode Q10, and the emitting electrodes of the triode Q9 and the triode Q10 are connected with the ground end GND;
the base of the triode Q5 is connected with the base of the triode Q4, the collector of the triode Q4 is connected with the base of the NPN triode Q1, the base of the triode Q7 is connected with the base of the triode Q8, and the collector of the triode Q8 is connected with the base of the NPN triode Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982906.6U CN210135930U (en) | 2019-06-27 | 2019-06-27 | Hall integrated sensor with bipolar output |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982906.6U CN210135930U (en) | 2019-06-27 | 2019-06-27 | Hall integrated sensor with bipolar output |
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| Publication Number | Publication Date |
|---|---|
| CN210135930U true CN210135930U (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920982906.6U Expired - Fee Related CN210135930U (en) | 2019-06-27 | 2019-06-27 | Hall integrated sensor with bipolar output |
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- 2019-06-27 CN CN201920982906.6U patent/CN210135930U/en not_active Expired - Fee Related
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Granted publication date: 20200310 |