CN220915168U - Multichannel transmitter for multichannel Hall sensor - Google Patents
Multichannel transmitter for multichannel Hall sensor Download PDFInfo
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- CN220915168U CN220915168U CN202322515734.0U CN202322515734U CN220915168U CN 220915168 U CN220915168 U CN 220915168U CN 202322515734 U CN202322515734 U CN 202322515734U CN 220915168 U CN220915168 U CN 220915168U
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- 238000012360 testing method Methods 0.000 claims abstract description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 34
- 239000003985 ceramic capacitor Substances 0.000 claims description 16
- 229910052715 tantalum Inorganic materials 0.000 claims description 14
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a multichannel transmitter for a multichannel Hall sensor, which comprises: the AC/DC stabilized power supply module converts 220V commercial power into direct current stabilized power supply required by the Hall sensors, the multichannel signal connection board consists of a plurality of 3-core aviation connectors and BNC connectors, the use is that the direct current stabilized power supply and transmission measurement signals are provided for the Hall sensors, the 3-core aviation connectors are used for connecting the Hall sensors, the BNC connectors are used for connecting test equipment, the transmitter shell is divided into an upper panel and a shell, the multichannel signal connection board is made of insulating plates and directly serves as the upper panel of the transmitter, and the AC/DC stabilized power supply module is installed inside the transmitter shell made of aluminum alloy and directly utilizes the aluminum alloy shell to dissipate heat. The utility model has simple design, convenient wiring and high reliability.
Description
Technical Field
The utility model belongs to the technical field of electronics, and particularly relates to a multichannel transmitter for a multichannel Hall sensor.
Background
In recent years, the Hall sensor has the advantages of good precision and linearity, wide frequency band, quick response, strong overload capacity, no insertion loss, high reliability, low power consumption, convenient maintenance and replacement and the like, and is widely applied to the fields of military products and civil products such as aviation, aerospace, communication and the like. The hall sensor needs a direct current power supply to supply power to normally work, and the power supply voltage must be within a range specified by the sensor, beyond which the sensor cannot normally work or the reliability is reduced. The power supply voltage of the Hall sensor adopts a single power supply, such as +5V, +12V or +24V, and positive and negative bipolar power supplies, such as +/-12V, +/-15V or +/-24V, are also needed. And in practical applications, it is often necessary to use several hall current sensors simultaneously. If each hall sensor is individually configured with a power supply, the field wiring is messy and complicated.
The switch voltage-stabilized power supply has the advantages of high efficiency, energy saving, strong capability of adapting to the change of the commercial power, wide adjustable range of output voltage, small volume, light weight and the like, and is widely applied to various fields of computers, communication, aerospace, national defense and the like. However, a disadvantage of switching regulated power supplies is the relatively severe switching interference. These disturbances, if not suppressed, eliminated and shielded by certain measures, can seriously affect the proper operation of the hall sensor and the test instrumentation. In addition, since the switching regulated power supply oscillator is not isolated by the power frequency transformer, the interference can be connected into a power frequency power grid in series, so that other nearby electronic instruments, equipment and household appliances are severely interfered.
Disclosure of utility model
The utility model aims to solve the problem that power supply wiring and test wiring are disordered and complicated when the multi-path Hall sensor is used, and provides a multi-path transmitter for the multi-path Hall sensor, which can greatly simplify the complexity of power supply and test wiring and improve the working efficiency and reliability.
The utility model adopts the technical proposal for solving the problems that:
a multichannel transmitter for multichannel hall sensor, includes casing, AC/DC regulated power supply module and multichannel signal connection board, multichannel signal connection board is as the top panel of casing, AC/DC regulated power supply module installs inside the casing, carries out alternating current-direct current conversion and direct current filtering steady voltage after the 220V alternating current filter pressing, exports hall sensor required direct current voltage, is connected with hall sensor through multichannel signal connection board.
Further, the AC/DC regulated power supply module includes an AC input loop, an AC/DC module and a DC output DC circuit, where the AC input loop is used to filter and regulate 220V AC voltage, its output is connected to the input end of the AC/DC module, the AC/DC module is used for AC/DC conversion, and the DC output DC circuit is used to filter and regulate the DC voltage output by the AC/DC module.
Further, the AC input loop comprises an input terminal, a common mode choke coil, an X-type safety capacitor and a bidirectional TVS diode, wherein two pins of the input terminal are respectively connected with a live wire and a zero wire of 220V alternating voltage, the common mode choke coil is symmetrically wound on the same ferrite annular magnetic core through two coils with the same size and the same number of turns, 2 pins are connected with the live wire, 2 pins are connected with the zero wire, the X-type safety capacitor is connected between the zero wire and the live wire, the common mode choke coil and the X-type safety capacitor form an LC filter, and the bidirectional TVS diode is connected with the X-type safety capacitor in parallel.
Further, the DC output direct current circuit comprises a first zener diode, a second zener diode, a first tantalum electrolytic capacitor, a second tantalum electrolytic capacitor, a first ceramic capacitor, a second ceramic capacitor, a first inductor and a second inductor, wherein the negative electrode of the first zener diode and one end of the first inductor are connected with the +V pin of the AC/DC module, the positive electrode of the first zener diode, one end of the first tantalum electrolytic capacitor, one end of the first ceramic capacitor, the negative electrode of the second zener diode, one end of the second tantalum electrolytic capacitor and one end of the second ceramic capacitor are connected with the GND pin of the AC/DC module together, the other end of the first inductor is connected with the other end of the first tantalum electrolytic capacitor and the other end of the first ceramic capacitor, the positive electrode of the second zener diode and one end of the second inductor are connected with the-V pin of the AC/DC module together, the other end of the second inductor is connected with the other end of the second tantalum electrolytic capacitor and the other end of the second ceramic capacitor, and the first inductor, the second inductor and the second capacitor form a GND pin of the AC/DC module together.
Further, the AC/DC module adopts a single power supply with corresponding voltage value or a positive and negative dual power supply, the single power supply output voltage adopts but not limited to +5v, +12, +15v or +24v, and the positive and negative dual power supply adopts but not limited to ±12v, ±15 or ±24v.
Further, the upper panel is made of insulating materials, and the shell is made of aluminum alloy materials.
Further, the AC/DC module is arranged at the bottom of the shell, and the contact surface is coated with heat-conducting silicone grease.
Further, the multichannel signal connection board comprises a plurality of 3-core aviation connectors and BNC connectors, wherein the 3-core aviation connectors are connected with the Hall current sensors and are used for connecting measurement signals of the Hall sensors to anodes of output terminals of the corresponding BNC connectors, and the BNC connectors are connected with testing equipment.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
(1) The multichannel transmitter provided by the utility model is suitable for application scenes of the multichannel Hall sensor, can greatly simplify the complexity of power supply and test connection of the Hall sensor, and improves the working efficiency and reliability.
(2) The method is simple and practical, is easy to wire and is convenient to use.
Drawings
FIG. 1 is a schematic diagram of a multi-channel transmitter for a multi-channel Hall current sensor in accordance with the present utility model;
fig. 2 is a schematic diagram of the appearance of a multi-channel transmitter for a multi-channel hall current sensor according to the present utility model.
Fig. 3 is a wiring diagram of a multi-channel transmitter and hall current sensor for a multi-channel hall current sensor in accordance with the present utility model.
Detailed Description
The utility model will be further described with reference to the drawings and detailed description.
The following examples are illustrative of the present utility model and the present utility model is not limited to the following embodiments, and the names of pins are not limited to this example.
The term "one end" and "the other end" are used herein for convenience of description, and are not limiting.
The utility model relates to a multichannel transmitter for a multichannel Hall current sensor, which is shown in fig. 1, and comprises an AC/DC stabilized voltage supply module and a multichannel signal connecting plate; the AC/DC regulated power supply module converts 220V mains supply into required direct current voltage; the 3-core aviation connector of the multichannel signal connection board supplies power to the plurality of Hall sensors and connects measurement signals to a test instrument through corresponding BNC connectors.
The AC/DC regulated power supply module is composed of an AC/DC module PS1, an AC input filter circuit (composed of an input terminal J1, a common mode choke coil L1, an X-type safety capacitor C1 and a bidirectional TVS diode D1) and a DC output filter circuit (composed of diodes D2-D3, capacitors C2-C5 and inductors L2-L3).
The AC input filter loop of the AC/DC regulated power supply module comprises a common mode choke coil L1, an X-type safety capacitor C1, a bidirectional TVS diode D1 and an input terminal J1. And pins 1 and 2 of the input terminal J1 are respectively connected with a live wire and a zero wire of 220V commercial power. The common mode choke coil L1 and the X-type safety capacitor C1 form an LC filter, and the input 220V power frequency alternating current is filtered. The common mode choke coil L1 is formed by winding two coils with the same size and the same number of turns on the same ferrite annular magnetic core symmetrically, wherein the 1 pin and the 2 pin are connected with a live wire, the 3 pin and the 4 pin are connected with a zero wire, and the common mode choke coil L1 is used for inhibiting common mode interference signals in a circuit and isolating the common mode interference signals from input 220V power frequency alternating current; the X-type safety capacitor C1 is connected between the zero line and the live line and plays a role of differential mode filtering in a circuit. The bidirectional TVS diode D1 is connected between the zero line and the fire wire, is an overvoltage surge protection device, and can bear reverse voltage impact in a very short time, so that the voltage between the zero line and the fire wire is clamped at 220V, and the impact to a subsequent circuit is avoided.
The AC/DC power supply module PS1 of the AC/DC stabilized power supply module is arranged in the aluminum alloy shell, and the heat conduction silicone grease is coated on the mounting contact surface, so that the aluminum alloy shell is directly utilized to dissipate heat. The AC/DC power module PS1 selects a single power source using a corresponding voltage value or a dual power source of positive and negative polarities according to the supply voltage requirement of the hall sensor. The single power supply output voltage can be selected from, but not limited to +5V, +12, +15V or +24V, and the positive and negative dual power supplies can be selected from, but not limited to +12V, +15V or +24V. The input terminal L end and the N end of the AC/DC power supply module PS1 are respectively connected to the L end and the N end of the AC input filter loop; output terminals + V, GND and-V are connected to + V, GND and-V ends, respectively, of the DC output filter circuit.
The DC output filter circuit of the AC/DC regulated power supply module is composed of diodes D2-D3, capacitors C2-C5 and inductors L2-L3, and filters the direct current voltage output by the power supply module PS 1. The D2 and D3 are voltage stabilizing diodes and are used for keeping the voltage at two ends of the load stable, wherein: the negative electrode of the D2 is connected with +V, the positive electrode is connected with GND, the negative electrode of the D3 is connected with GND, and the positive electrode is connected with-V. The L2 and the L3 are power inductors and are matched with the capacitors C2-C5 to form an LC filter; wherein, C2 and C4 are tantalum electrolytic capacitors for filtering low-frequency noise; and C3 and C5 are ceramic capacitors and are used for filtering high-frequency noise. One end of the inductor L2 is connected with +V, the other end is connected with one end of the capacitor C2 and C3 which are connected in parallel, and an LC filter formed by the inductor L2 filters a positive voltage circuit; one end of the inductor L3 is connected with the-V, the other end is connected with one end of the capacitor C4 and the capacitor C5 which are connected in parallel, and the LC filter is formed to filter the negative voltage circuit so as to inhibit interference signals and reduce output voltage ripple. If the power supply voltage of the hall sensor is a single power supply, the AC/DC module PS1 selects the single power supply, and a negative voltage loop is not needed.
The shell of the multichannel transmitter is divided into an upper panel and a shell, the multichannel signal connecting plate is directly used as the upper panel of the shell of the transmitter, and the multichannel signal connecting plate is made of an insulating plate and is used for connecting a Hall sensor of a user with testing equipment; the AC/DC stabilized power supply module is arranged in the shell, directly utilizes the aluminum alloy shell to dissipate heat, and has the functions of carrying out AC/DC conversion and DC filtering voltage stabilization after 220V commercial power filtering, and outputting the direct current voltage required by the Hall sensor.
The utility model has simple design, convenient wiring and high reliability.
The description of the present utility model has been provided for full illustration, and specific parameters of each component can be set according to actual needs, so that those skilled in the art can implement the description of the present utility model. Any modification based on the idea of the utility model falls within the scope of the claims of the utility model.
Claims (8)
1. A multi-channel transmitter for a multi-channel hall sensor, characterized by: the multi-channel signal connection board is used as an upper panel of the shell, the AC/DC voltage-stabilizing power supply module is arranged inside the shell, performs AC/DC conversion and DC filtering voltage stabilization after 220V AC voltage filtration, outputs direct current voltage required by the Hall sensor, and is connected with the Hall sensor through the multi-channel signal connection board.
2. The multi-channel transmitter of claim 1, wherein: the AC/DC stabilized power supply module comprises an AC input loop, an AC/DC module (PS 1) and a DC output direct current circuit, wherein the AC input loop is used for filtering and stabilizing 220V alternating current voltage, the output of the AC input loop is connected with the input end of the AC/DC module (PS 1), the AC/DC module (PS 1) is used for alternating current-direct current conversion, and the DC output direct current circuit is used for filtering and stabilizing direct current voltage output by the AC/DC module (PS 1).
3. The multi-channel transmitter of claim 2, wherein: the AC input loop comprises an input terminal (J1), a common mode choke coil (L1), an X-type safety capacitor (C1) and a bidirectional TVS diode (D1), wherein two pins of the input terminal (J1) are respectively connected with a live wire and a zero wire of 220V alternating voltage, the common mode choke coil (L1) is symmetrically wound on the same ferrite annular magnetic core through two coils with the same size and the same number of turns, 2 pins are connected with the live wire, 2 pins are connected with the zero wire, the X-type safety capacitor (C1) is connected between the zero wire and the live wire, the common mode choke coil (L1) and the X-type safety capacitor (C1) form an LC filter, and the bidirectional TVS diode (D1) is connected with the X-type safety capacitor (C1) in parallel.
4. The multi-channel transmitter of claim 2, wherein: the DC output direct current circuit comprises a first zener diode (D2), a second zener diode (D3), a first tantalum electrolytic capacitor (C2), a second tantalum electrolytic capacitor (C4), a first ceramic capacitor (C3), a second ceramic capacitor (C5), a first inductor (L2) and a second inductor (L3), wherein the negative electrode of the first zener diode (D2), one end of the first inductor (L2) is connected with the +V pin of the AC/DC module (PS 1), the positive electrode of the first zener diode (D2), one end of the first tantalum electrolytic capacitor (C2), one end of the first ceramic capacitor (C3), one end of the second zener diode (D3), one end of the second tantalum electrolytic capacitor (C4), one end of the second ceramic capacitor (C5) are commonly connected with the GND pin of the AC/DC module (PS 1), the other end of the first inductor (L2) is connected with the other end of the first tantalum electrolytic capacitor (C2), one end of the first ceramic capacitor (C3) is connected with the other end of the second inductor (C3), and the other end of the second capacitor (C3) is connected with the other end of the second ceramic capacitor (C3) is commonly connected with the GND pin of the second ceramic capacitor (C3) The second inductor (L3), the first tantalum electrolytic capacitor (C2), the second tantalum electrolytic capacitor (C4), the first ceramic capacitor (C3) and the second ceramic capacitor (C5) form an LC filter.
5. The multi-channel transmitter of claim 2, wherein: the AC/DC module (PS 1) adopts a single power supply with corresponding voltage values or a positive and negative dual power supply, the single power supply output voltage adopts but not limited to +5V, +12, +15V or +24V, and the positive and negative dual power supply adopts but not limited to +/-12V, +/-15 or +/-24V.
6. The multi-channel transmitter of claim 1, wherein: the upper panel is made of insulating materials, and the shell is made of aluminum alloy materials.
7. The multi-channel transmitter of claim 2, wherein: the AC/DC module (PS 1) is arranged at the bottom of the shell, and the contact surface is coated with heat-conducting silicone grease.
8. The multi-channel transmitter according to any one of claims 1 to 7, wherein: the multichannel signal connection board comprises a plurality of 3-core aviation connectors and BNC connectors, wherein the 3-core aviation connectors are connected with the Hall current sensors and are used for connecting measurement signals of the Hall sensors to anodes of output terminals of the corresponding BNC connectors, and the BNC connectors are connected with testing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322515734.0U CN220915168U (en) | 2023-09-14 | 2023-09-14 | Multichannel transmitter for multichannel Hall sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322515734.0U CN220915168U (en) | 2023-09-14 | 2023-09-14 | Multichannel transmitter for multichannel Hall sensor |
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| Publication Number | Publication Date |
|---|---|
| CN220915168U true CN220915168U (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322515734.0U Active CN220915168U (en) | 2023-09-14 | 2023-09-14 | Multichannel transmitter for multichannel Hall sensor |
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| Country | Link |
|---|---|
| CN (1) | CN220915168U (en) |
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2023
- 2023-09-14 CN CN202322515734.0U patent/CN220915168U/en active Active
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