CN207732738U - A kind of seismic instrument lower wattage power supply filter - Google Patents
A kind of seismic instrument lower wattage power supply filter Download PDFInfo
- Publication number
- CN207732738U CN207732738U CN201721844656.7U CN201721844656U CN207732738U CN 207732738 U CN207732738 U CN 207732738U CN 201721844656 U CN201721844656 U CN 201721844656U CN 207732738 U CN207732738 U CN 207732738U
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- China
- Prior art keywords
- power supply
- capacitance
- resistance
- operational amplifier
- resistor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of seismic instrument lower wattage power supply filters, including DC power supply, first resistor to the 5th resistance, the first capacitance to third capacitance, operational amplifier, compared with prior art, the utility model constitutes a kind of novel filter, the stable output signal that power supply can be improved effectively filters out interference signal, low in energy consumption, it lays the foundation, has the value of popularization and application for seismographic improvement.
Description
Technical field
The utility model is related to a kind of filter more particularly to a kind of seismic instrument lower wattage power supply filters.
Background technology
Seismic detector is a kind of generation of monitoring earthquake, records the instrument of earthquake relevant parameter.The science in the Eastern Han Dynasty of China epoch
Family Zhang Heng, " seismic detector " -- seismograph earliest in the world has just been made 132 years Christian eras.Modern science and technology progress, is adopted mostly
With the seismic detector of electronics, under normal circumstances, seismic detector nobody is on duty, thus needs to stablize without the power supply of interference, with
Improve seismographic stable operation.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of seismic instrument lower wattage power supply
Filter.
The utility model is achieved through the following technical solutions above-mentioned purpose：
The utility model includes DC power supply, first resistor to the 5th resistance, the first capacitance to third capacitance, operation amplifier
The anode of device, DC power supply is connect with the cathode power supply end of operational amplifier, the cathode of DC power supply and meanwhile with the second capacitance
First end, the first end of the 4th resistance are connected with the negative electricity source of operational amplifier, the first end of first resistor and the first electricity
The first end of appearance connects, and as signal input part, the second end of first resistor while second end and third with the second capacitance
The first end of resistance connects, and the second end of the first capacitance connects with the first end of the first end of third capacitance and second resistance simultaneously
It connects, the second end of second resistance is connect with the first end of the output end of operational amplifier and the 5th resistance simultaneously, and as signal
The second end of output end, third capacitance connects with the positive signal input part of the second end of 3rd resistor and operational amplifier simultaneously
It connects, the second end of the 4th resistance is connect with the second end of the inversion signal input terminal of operational amplifier and the 5th resistance simultaneously.
The beneficial effects of the utility model are：
The utility model is a kind of seismic instrument lower wattage power supply filter, compared with prior art, the utility model
A kind of novel filter is constituted, the stable output signal of power supply can be improved, effectively filters out interference signal, it is low in energy consumption, be
Seismographic improvement lays the foundation, and has the value of popularization and application.
Description of the drawings
Fig. 1 is the circuit structure schematic diagram of the utility model.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1：The utility model include DC power supply, first resistor R1 to the 5th resistance R5, the first capacitance C1 extremely
The anode of third capacitance C3, operational amplifier IC, DC power supply are connect with the cathode power supply end of operational amplifier IC, DC power supply
Cathode connect simultaneously with the negative electricity source of the first end of the second capacitance C2, the first end of the 4th resistance R4 and operational amplifier IC
It connects, the first end of first resistor R1 is connect with the first end of the first capacitance C1, and as signal input part IN, first resistor R1's
Second end is connect with the first end of the second end of the second capacitance C2 and 3rd resistor R3 simultaneously, and the second end of the first capacitance C1 is simultaneously
It is connect with the first end of the first end of third capacitance C3 and second resistance R2, the second end of second resistance R2 while and operation amplifier
The first end of the output end of device IC and the 5th resistance R5 connect, and as signal output end OUT, the second end of third capacitance C3 is same
When connect with the positive signal input part of the second end of 3rd resistor R3 and operational amplifier IC, the second end of the 4th resistance R4 is same
When connect with the second end of the inversion signal input terminal of operational amplifier IC and the 5th resistance R5.
The operation principle of the utility model is as follows：
The utility model constitutes a kind of novel bandstop filter, the performance and band of this circuit using integrated operational amplifier
For bandpass filter on the contrary, i.e. in certain frequency band, signal cannot be by (or by very big decaying or inhibition), and in remaining frequency
Range, signal can pass through.Interference signal can be isolated in this way.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (1)
1. a kind of seismic instrument lower wattage power supply filter, it is characterised in that：Including DC power supply, first resistor to the 5th electricity
The anode of resistance, the first capacitance to third capacitance, operational amplifier, DC power supply is connect with the cathode power supply end of operational amplifier,
The cathode of DC power supply while first end, the first end of the 4th resistance and the negative electricity source of operational amplifier with the second capacitance
Connection, the first end of first resistor are connect with the first end of the first capacitance, and as signal input part, the second end of first resistor
Connect simultaneously with the first end of the second end of the second capacitance and 3rd resistor, the second end of the first capacitance and meanwhile with third capacitance
First end is connected with the first end of second resistance, and the second end of second resistance is electric with the output end of operational amplifier and the 5th simultaneously
The first end of resistance connects, and as signal output end, the second end second end with 3rd resistor and the operation simultaneously of third capacitance
The positive signal input part of amplifier connects, the second end of the 4th resistance simultaneously with the inversion signal input terminal of operational amplifier and
The second end of 5th resistance connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721844656.7U CN207732738U (en) | 2017-12-26 | 2017-12-26 | A kind of seismic instrument lower wattage power supply filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721844656.7U CN207732738U (en) | 2017-12-26 | 2017-12-26 | A kind of seismic instrument lower wattage power supply filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207732738U true CN207732738U (en) | 2018-08-14 |
Family
ID=63086363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721844656.7U Expired - Fee Related CN207732738U (en) | 2017-12-26 | 2017-12-26 | A kind of seismic instrument lower wattage power supply filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207732738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302162A (en) * | 2018-10-11 | 2019-02-01 | 巩作远 | A kind of wireless telecommunication signal filter |
-
2017
- 2017-12-26 CN CN201721844656.7U patent/CN207732738U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302162A (en) * | 2018-10-11 | 2019-02-01 | 巩作远 | A kind of wireless telecommunication signal filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180814 Termination date: 20181226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |