CN203564222U - Anti-interference pulse signal conditioner - Google Patents
Anti-interference pulse signal conditioner Download PDFInfo
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- CN203564222U CN203564222U CN201320692888.0U CN201320692888U CN203564222U CN 203564222 U CN203564222 U CN 203564222U CN 201320692888 U CN201320692888 U CN 201320692888U CN 203564222 U CN203564222 U CN 203564222U
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- resistance
- electric capacity
- amplifier
- pulse signal
- capacitor
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Abstract
The utility model discloses an anti-interference pulse signal conditioner which comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a diode, a first power source, a second power source and an amplifier. According to the anti-interference pulse signal conditioner, input signals can be filtered and amplified, direct current signals and extremely-low-frequency interference signals can be eliminated, high-frequency interference can be suppressed, the useful pulse signals are amplified, the bias voltage is eliminated, the circuit structure is simple, and the anti-interference pulse signal conditioner is suitable for pulse detecting instruments.
Description
Technical field
This utility model relates to a kind of signal conditioner, relates in particular to a kind of jamproof pulse signal conditioner.
Background technology
In the diagnosis of China's Chinese medicine, by pulse-taking, doctor can have a general understanding to patient's health, and then suit the remedy to the case, pulse signal can direct reaction goes out the part situation of patient's heart, China's Chinese medicine is thought, by pulse-taking, can recognize the prosperity and decline of patient's internal organs QI and blood, along with scientific and technological development, instrument about pulse signal is more and more, pulse signal conditioner common configuration is comparatively complicated now, and anti-interference is poor, has restricted the development of pulse signal instrument.
Utility model content
The purpose of this utility model provides a kind of jamproof pulse signal conditioner with regard to being in order to address the above problem.
This utility model is achieved through the following technical solutions above-mentioned purpose:
This utility model comprises the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, diode, the first power supply, second source and amplifier, the first end of described the first electric capacity is connected with signal input part, and the second end of described the first electric capacity is connected with the first end of described the first resistance, the second end while of described the first resistance and the first end of described the second electric capacity, described the 4th first end of resistance and the inverting input of described amplifier are connected, and the in-phase input end of described amplifier is connected with the first end of described the 5th resistance, the second end while of described the 5th resistance and the first end of described the 4th electric capacity, described the 3rd positive pole of electric capacity and the negative pole of described diode are connected, the second end of described the 4th electric capacity is connected with the negative pole of described the 3rd electric capacity and the first end of described the 3rd resistance and ground connection simultaneously, the second end of described the 3rd resistance is connected with the first end of described the second resistance with the positive pole of described diode simultaneously, the second end of described the second resistance is connected with the positive pole of described the first power supply, the positive electrical source of described amplifier is connected with the positive pole of described second source, the negative electricity source of described amplifier is connected with the first end of described the 5th resistance and ground connection, the outfan while of described amplifier and the second end of described the 5th resistance, signal output part, the second end of described the second electric capacity is connected with the second end of described the 4th resistance.
Particularly, described the first power supply and described second source are DC source, and described the 3rd electric capacity is polar capacitor.
The beneficial effects of the utility model are:
This utility model is a kind of jamproof pulse signal conditioner, can carry out filtering and processing and amplifying to input signal, can remove direct current and extremely low frequency interfering signal, and can suppress High-frequency Interference, useful pulse signal is amplified, eliminated bias voltage, circuit structure is simple, than being more suitable for pulse detector device.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of a kind of jamproof pulse signal conditioner of this utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, this utility model comprises the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, diode D, the first power supply DC1, second source DC2 and amplifier IC, the first power supply DC1 and second source DC2 are DC source, the 3rd capacitor C 3 is polar capacitor, the first end of the first capacitor C 1 is connected with signal input part VIN, the second end of the first capacitor C 1 is connected with the first end of the first resistance R 1, the second end while of the first resistance R 1 and the first end of the second capacitor C 2, the first end of the 4th resistance R 4 is connected with the inverting input of amplifier IC, and the in-phase input end of amplifier IC is connected with the first end of the 5th resistance R 5, the second end while of the 5th resistance R 5 and the first end of the 4th capacitor C 4, the positive pole of the 3rd capacitor C 3 is connected with the negative pole of diode D, the second end of the 4th capacitor C 4 is connected with the negative pole of the 3rd capacitor C 3 and the first end of the 3rd resistance R 3 and ground connection simultaneously, the second end of the 3rd resistance R 3 is connected with the first end of the second resistance R 2 with the positive pole of diode D simultaneously, the second end of the second resistance R 2 is connected with the positive pole of the first power supply DC1, the positive electrical source of amplifier IC is connected with the positive pole of second source DC2, the negative electricity source of amplifier IC is connected with the first end of the 5th resistance R 5 and ground connection, the outfan while of amplifier IC and the second end of the 5th resistance R 5, signal output part VO, the second end of the second capacitor C 2 is connected with the second end of the 4th resistance R 4.
This utility model is a kind of jamproof pulse signal conditioner, the weak output signal of exporting due to pulse transducer is also often being mingled with noise jamming, so must carry out filtering and processing and amplifying, owing to being alternative current amplifier, so the supply voltage scope of choosing in signal conditioning circuit is wide, quiescent dissipation needs smaller, can use by single supply, wherein to select model be the integrated transporting discharging of LM324 to amplifier IC, prime is every straight low pass sign-changing amplifier by one, to remove direct current and extremely low frequency, disturb, and suppress High-frequency Interference, and 50Hz power frequency is had to preliminary decay, useful pulse signal is amplified simultaneously, for eliminate bias voltage, between positive input and ground, access the 5th resistance R 5, its resistance is 100 kilo-ohms, low-pass cut-off frequencies is made as 20Hz, choosing the second capacitor C 2 is 6800 pico farads.
Claims (2)
1. a jamproof pulse signal conditioner, is characterized in that: comprise the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, diode, the first power supply, second source and amplifier, the first end of described the first electric capacity is connected with signal input part, and the second end of described the first electric capacity is connected with the first end of described the first resistance, the second end while of described the first resistance and the first end of described the second electric capacity, described the 4th first end of resistance and the inverting input of described amplifier are connected, and the in-phase input end of described amplifier is connected with the first end of described the 5th resistance, the second end while of described the 5th resistance and the first end of described the 4th electric capacity, described the 3rd positive pole of electric capacity and the negative pole of described diode are connected, the second end of described the 4th electric capacity is connected with the negative pole of described the 3rd electric capacity and the first end of described the 3rd resistance and ground connection simultaneously, the second end of described the 3rd resistance is connected with the first end of described the second resistance with the positive pole of described diode simultaneously, the second end of described the second resistance is connected with the positive pole of described the first power supply, the positive electrical source of described amplifier is connected with the positive pole of described second source, the negative electricity source of described amplifier is connected with the first end of described the 5th resistance and ground connection, the outfan while of described amplifier and the second end of described the 5th resistance, signal output part, the second end of described the second electric capacity is connected with the second end of described the 4th resistance.
2. a kind of jamproof pulse signal conditioner according to claim 1, is characterized in that: described the first power supply and described second source are DC source, and described the 3rd electric capacity is polar capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692888.0U CN203564222U (en) | 2013-11-05 | 2013-11-05 | Anti-interference pulse signal conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692888.0U CN203564222U (en) | 2013-11-05 | 2013-11-05 | Anti-interference pulse signal conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203564222U true CN203564222U (en) | 2014-04-30 |
Family
ID=50531992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320692888.0U Expired - Fee Related CN203564222U (en) | 2013-11-05 | 2013-11-05 | Anti-interference pulse signal conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203564222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753440A (en) * | 2019-10-31 | 2020-02-04 | 广东美的制冷设备有限公司 | Drive control circuit board and air conditioner |
-
2013
- 2013-11-05 CN CN201320692888.0U patent/CN203564222U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753440A (en) * | 2019-10-31 | 2020-02-04 | 广东美的制冷设备有限公司 | Drive control circuit board and air conditioner |
| CN110753440B (en) * | 2019-10-31 | 2021-12-14 | 广东美的制冷设备有限公司 | Drive control circuit board and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20141105 |
|
| EXPY | Termination of patent right or utility model |