CN103017928A - Ultrasonic power supply temperature detection circuit - Google Patents
Ultrasonic power supply temperature detection circuit Download PDFInfo
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- CN103017928A CN103017928A CN201210525779XA CN201210525779A CN103017928A CN 103017928 A CN103017928 A CN 103017928A CN 201210525779X A CN201210525779X A CN 201210525779XA CN 201210525779 A CN201210525779 A CN 201210525779A CN 103017928 A CN103017928 A CN 103017928A
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- capacitor
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- resistance
- lm321a
- prime amplifier
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses an ultrasonic power supply temperature detection circuit which comprises a platinum temperature resistor Rx, a first transient suppressor diode D1, a second transient suppressor diode D2, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a first resistor R1, a second resistor R2, a third resistor R3, an inductor L1, an LM321A pre-amplifier U1 and an ADS1100SA/D (analogue-to-digital) conversion chip U2. The ultrasonic power supply temperature detection circuit has the advantages of utilizing mature and reliable components which are low in cost and rich in source; providing a high voltage protection effect, limiting the overvoltage voltage within a certain range and preventing the high voltage of the detecting end from damaging a rear circuit; providing an n-typed filter circuit and filtering harmful high frequency components, improving the signal-to-noise and providing good signals for the A/D conversion after measuring signals passing through the filter circuit.
Description
Technical field
The invention belongs to the industrial control technology field, relate to a kind of circuit, be specifically related to a kind of ultrasonic power temperature sensing circuit.
Background technology
Ultrasonic power is also referred to as ultrasonic wave generating source, and its effect is that electric energy is converted to the high-frequency ac electric signal that is complementary with ultrasonic transducer.It is larger that the ultrasonic power supply conversion efficiency is affected by match circuit, and it is large to consume electric energy, and not only oscillator generates heat easily, and transformer, inductance generate heat easily, and CPU is easily heating also.Although can lower the temperature with large tracts of land heat radiator and fan, cause CPU to burn for preventing temperature overheating, need to increase the ultrasonic power temperature sensing circuit and come the Real-Time Monitoring heatsink temperature.In case monitor excess Temperature, just need to take the necessary measures as reducing power, out of service, give the alarm etc.
Because the singularity of ultrasonic power, in the ultrasonic transducer course of work, because there are stronger electromagnetic interference (EMI) in transformer and inductance, the oscillator vibrations cause very large high frequency noise.During simultaneously owing to power work, output end voltage is up to upper kilovolt, and traditional temperature sensing circuit can not use in this system.
Summary of the invention
Purpose of the present invention is exactly the above-mentioned deficiency for existing testing circuit, and a kind of ultrasonic power temperature sensing circuit is provided.
A kind of ultrasonic power temperature sensing circuit of the present invention comprises platinum temperature detecting resistance R
x, the first Transient Suppression Diode D
1, the second Transient Suppression Diode D
2, the first capacitor C
1, the second capacitor C
2, the 3rd capacitor C
3, the 4th capacitor C
4, the 5th capacitor C
5, the first resistance R
1, the second resistance R
2, the 3rd resistance R
3, inductance L
1, LM321A prime amplifier U1, ADS1100SA/D conversion chip U2.
Platinum resistance R
xAn end and the first Transient Suppression Diode D
1Anode, inductance L
1An end and the first capacitor C
1An end connect the first Transient Suppression Diode D
1Negative electrode and the second Transient Suppression Diode D
2Negative electrode connect inductance L
1The other end and the first resistance R
1An end, the second capacitor C
2An end be connected 2 pin with prime amplifier LM321A and connect platinum resistance R
xThe other end, the second Transient Suppression Diode D
2Anode, the first capacitor C
1The other end, the first resistance R
1The other end, the second capacitor C
2The other end be connected 4 pin of LM321A prime amplifier U1 and the second resistance R with 3 pin of LM321A prime amplifier U1
2An end, the 3rd resistance R
3An end connect and connect-the 15V power supply 5 pin of LM321A prime amplifier U1 and the second resistance R
2The other end connect 6 pin of LM321A prime amplifier U1 and the 3rd resistance R
3The other end connect, 7 pin of LM321A prime amplifier U1 are connected 1 pin of LM321A prime amplifier U1 and the 3rd capacitor C with+15V power supply
3An end be connected 1 pin with ADS1100SA/D conversion chip U2 and connect 8 pin of LM321A prime amplifier U1 and the 4th capacitor C
4An end connect the 4th capacitor C
4Other end ground connection, the 3rd capacitor C
3The other end be connected 5 pin of ADS1100SA/D conversion chip U2 and the 5th capacitor C with 2 pin of ADS1100SA/D conversion chip U2
5An end link to each other the 5th capacitor C with+5V power supply
5Other end ground connection, the 6 pin ground connection of ADS1100SA/D conversion chip U2,3 pin of ADS1100SA/D conversion chip U2 and 4 pin are the output signal terminal.
Beneficial effect: the components and parts that the present invention adopts become and are ripe reliable, with low cost, and the source is abundant.The present invention has the high voltage protective effect, and too high voltages restriction within the specific limits, the high voltage that prevents the test side causes damage to the circuit of back.Have ∏ type filtering circuit, behind the wave circuit, filtering is harmful to radio-frequency component to measuring-signal after filtration, and the property the improved ratio of making an uproar is for the A/D conversion provides good signal.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Further specify the specific embodiment of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of ultrasonic power temperature sensing circuit comprises platinum temperature detecting resistance R
x, the first Transient Suppression Diode D
1, the second Transient Suppression Diode D
2, the first capacitor C
1, the second capacitor C
2, the 3rd capacitor C
3, the 4th capacitor C
4, the 5th capacitor C
5, the first resistance R
1, the second resistance R
2, the 3rd resistance R
3, inductance L
1, LM321A prime amplifier U1, ADS1100SA/D conversion chip U2.
Platinum resistance R
xAn end and the first Transient Suppression Diode D
1Anode, inductance L
1An end and the first capacitor C
1An end connect the first Transient Suppression Diode D
1Negative electrode and the second Transient Suppression Diode D
2Negative electrode connect inductance L
1The other end and the first resistance R
1An end, the second capacitor C
2An end be connected 2 pin with prime amplifier LM321A and connect platinum resistance R
xThe other end, the second Transient Suppression Diode D
2Anode, the first capacitor C
1The other end, the first resistance R
1The other end, the second capacitor C
2The other end be connected 4 pin of LM321A prime amplifier U1 and the second resistance R with 3 pin of LM321A prime amplifier U1
2An end, the 3rd resistance R
3An end connect and connect-the 15V power supply 5 pin of LM321A prime amplifier U1 and the second resistance R
2The other end connect 6 pin of LM321A prime amplifier U1 and the 3rd resistance R
3The other end connect, 7 pin of LM321A prime amplifier U1 are connected 1 pin of LM321A prime amplifier U1 and the 3rd capacitor C with+15V power supply
3An end be connected 1 pin with ADS1100SA/D conversion chip U2 and connect 8 pin of LM321A prime amplifier U1 and the 4th capacitor C
4An end connect the 4th capacitor C
4Other end ground connection, the 3rd capacitor C
3The other end be connected 5 pin of ADS1100SA/D conversion chip U2 and the 5th capacitor C with 2 pin of ADS1100SA/D conversion chip U2
5An end link to each other the 5th capacitor C with+5V power supply
5Other end ground connection, the 6 pin ground connection of ADS1100SA/D conversion chip U2,3 pin of ADS1100SA/D conversion chip U2 and 4 pin are the output signal terminal.
The first Transient Suppression Diode D of the present invention
1With the second Transient Suppression Diode D
2Consist of high tension protection circuit, effect is the too high voltages restriction within the specific limits, and the high voltage that prevents the test side causes damage to the circuit of back.The first capacitor C
1, inductance L
1, the first resistance R
1With the second capacitor C
2Consist of together ∏ type filtering circuit, behind the wave circuit, filtering is harmful to radio-frequency component to measuring-signal after filtration.Prime amplifier LM321A and the second resistance R
2, the 3rd resistance R
3Consist of together the circuit of determining enlargement factor.The 3rd capacitor C
3With the 5th capacitor C
4Consist of filtering circuit, remove the high frequency noise that amplifier LM321A produces, the property the improved ratio of making an uproar, ADS1100S provides good signal for the A/D conversion chip.A/D conversion chip ADS1100S becomes analog signal conversion digital signal to offer the CPU processing.
Claims (1)
1. a ultrasonic power temperature sensing circuit comprises platinum temperature detecting resistance R
x, the first Transient Suppression Diode D
1, the second Transient Suppression Diode D
2, the first capacitor C
1, the second capacitor C
2, the 3rd capacitor C
3, the 4th capacitor C
4, the 5th capacitor C
5, the first resistance R
1, the second resistance R
2, the 3rd resistance R
3, inductance L
1, LM321A prime amplifier U1, ADS1100SA/D conversion chip U2;
It is characterized in that: platinum resistance R
xAn end and the first Transient Suppression Diode D
1Anode, inductance L
1An end and the first capacitor C
1An end connect the first Transient Suppression Diode D
1Negative electrode and the second Transient Suppression Diode D
2Negative electrode connect inductance L
1The other end and the first resistance R
1An end, the second capacitor C
2An end be connected 2 pin with prime amplifier LM321A and connect platinum resistance R
xThe other end, the second Transient Suppression Diode D
2Anode, the first capacitor C
1The other end, the first resistance R
1The other end, the second capacitor C
2The other end be connected 4 pin of LM321A prime amplifier U1 and the second resistance R with 3 pin of LM321A prime amplifier U1
2An end, the 3rd resistance R
3An end connect and connect-the 15V power supply 5 pin of LM321A prime amplifier U1 and the second resistance R
2The other end connect 6 pin of LM321A prime amplifier U1 and the 3rd resistance R
3The other end connect, 7 pin of LM321A prime amplifier U1 are connected 1 pin of LM321A prime amplifier U1 and the 3rd capacitor C with+15V power supply
3An end be connected 1 pin with ADS1100SA/D conversion chip U2 and connect 8 pin of LM321A prime amplifier U1 and the 4th capacitor C
4An end connect the 4th capacitor C
4Other end ground connection, the 3rd capacitor C
3The other end be connected 5 pin of ADS1100SA/D conversion chip U2 and the 5th capacitor C with 2 pin of ADS1100SA/D conversion chip U2
5An end link to each other the 5th capacitor C with+5V power supply
5Other end ground connection, the 6 pin ground connection of ADS1100SA/D conversion chip U2,3 pin of ADS1100SA/D conversion chip U2 and 4 pin are the output signal terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210525779.XA CN103017928B (en) | 2012-12-04 | 2012-12-04 | Ultrasonic power supply temperature detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210525779.XA CN103017928B (en) | 2012-12-04 | 2012-12-04 | Ultrasonic power supply temperature detection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103017928A true CN103017928A (en) | 2013-04-03 |
| CN103017928B CN103017928B (en) | 2014-07-16 |
Family
ID=47966788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210525779.XA Expired - Fee Related CN103017928B (en) | 2012-12-04 | 2012-12-04 | Ultrasonic power supply temperature detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103017928B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105308528A (en) * | 2013-06-19 | 2016-02-03 | 精工电子有限公司 | Voltage regulator |
| CN106840369A (en) * | 2017-02-17 | 2017-06-13 | 杭州电子科技大学 | A kind of ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction |
| RU2624410C1 (en) * | 2016-07-11 | 2017-07-03 | Общество с ограниченной ответственностью "МИП Уфимского государственного нефтяного технического университета "Интеллектуальные системы управления" | Method of measuring high temperature of inhomogeneous medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4556330A (en) * | 1982-08-27 | 1985-12-03 | Endress U. Hauser Gmbh U. Co. | Resistance thermometer and linearization circuitry |
| CN2929679Y (en) * | 2006-06-23 | 2007-08-01 | 中国石油天然气集团公司 | Temperature measurer |
| CN202255641U (en) * | 2011-08-12 | 2012-05-30 | 北京斯贝克科技有限责任公司 | Temperature warning direct-current circuit |
| CN202442810U (en) * | 2012-01-19 | 2012-09-19 | 东北石油大学秦皇岛分校 | Thermal resistor temperature measuring device |
| CN203053602U (en) * | 2012-12-04 | 2013-07-10 | 杭州成功超声电源技术有限公司 | Ultrasonic power supply temperature detection circuit |
-
2012
- 2012-12-04 CN CN201210525779.XA patent/CN103017928B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4556330A (en) * | 1982-08-27 | 1985-12-03 | Endress U. Hauser Gmbh U. Co. | Resistance thermometer and linearization circuitry |
| CN2929679Y (en) * | 2006-06-23 | 2007-08-01 | 中国石油天然气集团公司 | Temperature measurer |
| CN202255641U (en) * | 2011-08-12 | 2012-05-30 | 北京斯贝克科技有限责任公司 | Temperature warning direct-current circuit |
| CN202442810U (en) * | 2012-01-19 | 2012-09-19 | 东北石油大学秦皇岛分校 | Thermal resistor temperature measuring device |
| CN203053602U (en) * | 2012-12-04 | 2013-07-10 | 杭州成功超声电源技术有限公司 | Ultrasonic power supply temperature detection circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105308528A (en) * | 2013-06-19 | 2016-02-03 | 精工电子有限公司 | Voltage regulator |
| RU2624410C1 (en) * | 2016-07-11 | 2017-07-03 | Общество с ограниченной ответственностью "МИП Уфимского государственного нефтяного технического университета "Интеллектуальные системы управления" | Method of measuring high temperature of inhomogeneous medium |
| CN106840369A (en) * | 2017-02-17 | 2017-06-13 | 杭州电子科技大学 | A kind of ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103017928B (en) | 2014-07-16 |
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