CN205562654U - Voltage sampling circuit - Google Patents
Voltage sampling circuit Download PDFInfo
- Publication number
- CN205562654U CN205562654U CN201620131031.5U CN201620131031U CN205562654U CN 205562654 U CN205562654 U CN 205562654U CN 201620131031 U CN201620131031 U CN 201620131031U CN 205562654 U CN205562654 U CN 205562654U
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- circuit
- voltage
- magnetic bead
- voltage sample
- filter capacitor
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model provides a voltage sampling circuit, its characterized in that: including voltage sample interface, filtering magnetic bead, bleeder circuit, filter circuit, overvoltage protection circuit, chip, data processor, the voltage sample interface is established ties respectively on the zero line connected and live wire has a filtering magnetic bead, and the voltage sample interface connects in parallel has a bleeder circuit, filter circuit and overvoltage protection circuit, and overvoltage protection bleeder circuit 1 is on the chip, and the chip is connected with data processor. The utility model discloses the problem of grid voltage monitoring sample has been solved to the device, and voltage sampling circuit divide into four stages of partial pressure, filtering, protection and chip signal conversion, can be with real -time sample of voltage signal and output.
Description
Technical field
This utility model relates to voltage monitoring technical field, especially a kind of voltage sample circuit.
Background technology
Along with national grid intelligent power grid technology develops, the indices of electrical network is required more and more higher, and whether voltage meets user and requires to become an important indicator of the daily examination of power supply management department, power supply management department is to voltage real-time monitoring for convenience, needing to carry out voltage Quick Acquisition, therefore this sample circuit can sampled voltage signal fast and accurately.
Utility model content
The purpose of this utility model is the problems referred to above existed for existing technology; provide a kind of voltage sampling circuit; the problem that this utility model device solves line voltage monitoring sampling; voltage sample circuit is divided into dividing potential drop, filters, protects and chip signal conversion four-stage, can be by voltage signal real time sample and export.
To this end, the technical solution that this utility model is taked is:
A kind of voltage sample circuit; including voltage sample interface, filtering magnetic bead, bleeder circuit, filter circuit, excess voltage protection, chip, data processor; voltage sample interface is in series with a filtering magnetic bead on the zero line connected and live wire respectively; voltage sample interface is parallel with a bleeder circuit, a filter circuit and excess voltage protection; excess voltage protection is connected on chip, and chip is connected with data processor.
As further preferably, described filtering magnetic bead connects filtering magnetic bead L on the zero line that described voltage sample interface connects, and the encapsulation model of described filtering magnetic bead L is RH-3.5*6.0*0.8.
As further preferably, described filtering magnetic bead connects filtering magnetic bead N on the zero line that described voltage sample interface connects, and the encapsulation model of described filtering magnetic bead N is RH-3.5*6.0*0.8.
As further preferably, the divider resistance Ra of described bleeder circuit is connected on zero line, described divider resistance Ra is between described bleeder circuit and described filter circuit, the divider resistance Rc of described bleeder circuit is connected on live wire, described divider resistance Rc is between described filtering magnetic bead and described bleeder circuit, the divider resistance Rb and derided capacitors Ca having described bleeder circuit it is connected between live wire with zero line, described divider resistance Rb is in parallel with described derided capacitors Ca, and described divider resistance Rb and described derided capacitors Ca parallel circuit are provided with dividing potential drop earth lead Da.
As further preferably, the filter capacitor Cb of described filter circuit, filter capacitor Cc and filter capacitor Cd are connected in parallel on zero line and live wire, described filter capacitor Cb connects with described filter capacitor Cc, be provided with filtering earth lead Db, described filter capacitor Cb between described filter capacitor Cb and described filter capacitor Cc, described filter capacitor Cc and described filter capacitor Cd is 10pF.
As further preferably; the protection diode Ea of described excess voltage protection and protection diode Eb is connected in parallel on zero line and live wire; described protection diode Ea and described protection diode Eb Opposite direction connection, described protection diode Ea and described protection diode Eb is IN4007.
As further preferably, described chip is CS5460.
Having the beneficial effects that of technique scheme:
Voltage sample circuit is divided into bleeder circuit by this utility model device, filter circuit, excess voltage protection and chip four part, various signals in electrical network can be carried out dividing potential drop, filter, CS5460 chip is sent into after removing interference, voltage signal is processed by CS5460 chip, be converted to low and high level signal for data processor, in real time the voltage signal of electrical network can be sampled, and it is converted into low and high level signal, can realize remotely monitoring and abnormal voltage signal alarm, improve the precision of administration of power networks indices, gather voltage signal speed fast, capacity of resisting disturbance is strong, the data precision of sampling is high.
Accompanying drawing explanation
Fig. 1 is the connection diagram of voltage sample circuit of the present utility model.
Fig. 2 is voltage sample circuit schematic diagram of the present utility model.
In figure: 1, voltage sample interface；2, filtering magnetic bead；3, bleeder circuit；4, filter circuit；5, excess voltage protection；6, chip；7, data processor；201, filtering magnetic bead L；202, filtering magnetic bead N；301, divider resistance Ra；302, divider resistance Rb；303, divider resistance Rc；304, derided capacitors Ca；305, dividing potential drop earth lead Da；401, filter capacitor Cb；402, filter capacitor Cc；403, filtering earth lead Db；404, filter capacitor Cd；501, protection diode Ea；502, protection diode Eb.
Detailed description of the invention
For making feature of the present utility model and advantage clearer, it is described below in conjunction with specific embodiment.
As shown in Figure 1; a kind of voltage sample circuit; including voltage sample interface 1, filtering magnetic bead 2, bleeder circuit 3, filter circuit 4, excess voltage protection 5, chip 6, data processor 7; voltage sample interface 1 is in series with a filtering magnetic bead 2 on the zero line connected and live wire respectively; voltage sample interface 1 is parallel with 3, filter circuit 4 of a bleeder circuit and excess voltage protection 5; excess voltage protection 5 is connected on chip 6, and chip 6 is connected with data processor 7.
In the present embodiment, described filtering magnetic bead 2 connects filtering magnetic bead L201 on the zero line that described voltage sample interface 1 connects, and the encapsulation model of described filtering magnetic bead L201 is RH-3.5*6.0*0.8, for the collection to voltage signal.
In the present embodiment, described filtering magnetic bead 2 connects filtering magnetic bead N202 on the zero line that described voltage sample interface 1 connects, and the encapsulation model of described filtering magnetic bead N202 is RH-3.5*6.0*0.8, for the collection to voltage signal.
nullIn the present embodiment，The divider resistance Ra301 of described bleeder circuit 3 is connected on zero line，Described divider resistance Ra301 is between described bleeder circuit 3 and described filter circuit 4，The divider resistance Rc303 of described bleeder circuit 3 is connected on live wire，Described divider resistance Rc303 is between described filtering magnetic bead 2 and described bleeder circuit 3，The divider resistance Rb302 and derided capacitors Ca304 having described bleeder circuit 3 it is connected between live wire with zero line，Described divider resistance Rb302 is in parallel with described derided capacitors Ca304，Described divider resistance Rb302 and described derided capacitors Ca304 parallel circuit are provided with dividing potential drop earth lead Da305，Voltage signal is carried out dividing potential drop，Obtain the voltage signal that chip processes，The resistance of described divider resistance Ra301 and described divider resistance Rb302 is 510 Europe，Described divider resistance Rc303 is 1000 Europe.
In the present embodiment, the filter capacitor Cb401 of described filter circuit 4, filter capacitor Cc402 and filter capacitor Cd404 are connected in parallel on zero line and live wire, described filter capacitor Cb401 connects with described filter capacitor Cc402, filtering earth lead Db403 it is provided with between described filter capacitor Cb401 and described filter capacitor Cc402, described filter capacitor Cb401, described filter capacitor Cc402 and described filter capacitor Cd404 are 10pF, are filtered out by the garbage signal in voltage signal.
In the present embodiment; the protection diode Ea501 of described excess voltage protection 5 and protection diode Eb502 is connected in parallel on zero line and live wire; described protection diode Ea501 and described protection diode Eb502 Opposite direction connection; described protection diode Ea501 and described protection diode Eb502 is IN4007; voltage model is protected; when overvoltage model occurs, directly filter out.
In the present embodiment, described chip 6 is CS5460, carries out data process, result is stored in corresponding depositor after being amplified by voltage signal.
During use; zero line and the live wire of voltage sampling circuit are connected in parallel on voltage sample interface 1; filtering magnetic bead 2 gathers voltage signal; voltage signal obtains the voltage signal of chip 6 by bleeder circuit 3; and in filter circuit 4, garbage signal is filtered out; at excess voltage protection 5, the voltage of input chip 6 is protected; to overvoltage signal; directly filter out; voltage signal enter in chip 6 be received, filter, verify after be converted to low and high level signal for data processor 7; and judge whether voltage exception occurs, and realize on-line monitoring.
In addition to the implementation, this utility model can also have other embodiments.The technical scheme that all employing equivalents or equivalent transformation are formed, all falls within protection domain of the present utility model.
Claims (7)
1. a voltage sample circuit; it is characterized in that: include voltage sample interface, filtering magnetic bead, bleeder circuit, filter circuit, excess voltage protection, chip, data processor; voltage sample interface is in series with a filtering magnetic bead on the zero line connected and live wire respectively; voltage sample interface is parallel with a bleeder circuit, a filter circuit and excess voltage protection; excess voltage protection is connected on chip, and chip is connected with data processor.
Voltage sample circuit the most according to claim 1, it is characterised in that: described filtering magnetic bead connects filtering magnetic bead L on the zero line that described voltage sample interface connects, and the encapsulation model of described filtering magnetic bead L is RH-3.5*6.0*0.8.
Voltage sample circuit the most according to claim 1, it is characterised in that: described filtering magnetic bead connects filtering magnetic bead N on the zero line that described voltage sample interface connects, and the encapsulation model of described filtering magnetic bead N is RH-3.5*6.0*0.8.
Voltage sample circuit the most according to claim 1, it is characterized in that: the divider resistance Ra of described bleeder circuit is connected on zero line, described divider resistance Ra is between described bleeder circuit and described filter circuit, the divider resistance Rc of described bleeder circuit is connected on live wire, described divider resistance Rc is between described filtering magnetic bead and described bleeder circuit, the divider resistance Rb and derided capacitors Ca having described bleeder circuit it is connected between live wire with zero line, described divider resistance Rb is in parallel with described derided capacitors Ca, described divider resistance Rb and described derided capacitors Ca parallel circuit are provided with dividing potential drop earth lead Da.
Voltage sample circuit the most according to claim 1, it is characterized in that: the filter capacitor Cb of described filter circuit, filter capacitor Cc and filter capacitor Cd are connected in parallel on zero line and live wire, described filter capacitor Cb connects with described filter capacitor Cc, be provided with filtering earth lead Db, described filter capacitor Cb between described filter capacitor Cb and described filter capacitor Cc, described filter capacitor Cc and described filter capacitor Cd is 10pF.
Voltage sample circuit the most according to claim 1; it is characterized in that: the protection diode Ea of described excess voltage protection and protection diode Eb is connected in parallel on zero line and live wire; described protection diode Ea and described protection diode Eb Opposite direction connection, described protection diode Ea and described protection diode Eb is IN4007.
Voltage sample circuit the most according to claim 1, it is characterised in that: described chip is CS5460.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131031.5U CN205562654U (en) | 2016-02-22 | 2016-02-22 | Voltage sampling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131031.5U CN205562654U (en) | 2016-02-22 | 2016-02-22 | Voltage sampling circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205562654U true CN205562654U (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620131031.5U Expired - Fee Related CN205562654U (en) | 2016-02-22 | 2016-02-22 | Voltage sampling circuit |
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| CN (1) | CN205562654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824222A (en) * | 2018-08-08 | 2020-02-21 | 比亚迪汽车工业有限公司 | Signal sampling method and system and vehicle |
-
2016
- 2016-02-22 CN CN201620131031.5U patent/CN205562654U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824222A (en) * | 2018-08-08 | 2020-02-21 | 比亚迪汽车工业有限公司 | Signal sampling method and system and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A kind of voltage sample circuit Effective date of registration: 20161219 Granted publication date: 20160907 Pledgee: China Co truction Bank Corp Deyang branch Pledgor: Deyang Collective River Science & Technology Co., Ltd. Registration number: 2016990001123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20190222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |