CN203053602U - Ultrasonic power supply temperature detection circuit - Google Patents
Ultrasonic power supply temperature detection circuit Download PDFInfo
- Publication number
- CN203053602U CN203053602U CN 201220672954 CN201220672954U CN203053602U CN 203053602 U CN203053602 U CN 203053602U CN 201220672954 CN201220672954 CN 201220672954 CN 201220672954 U CN201220672954 U CN 201220672954U CN 203053602 U CN203053602 U CN 203053602U
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- capacitor
- pin
- resistance
- lm321a
- power supply
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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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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model discloses an ultrasonic power supply temperature detection circuit which comprises a platinum temperature detection 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. Components utilized in the ultrasonic power supply temperature detection circuit have the advantages of maturity, reliability, low cost and abundant resources. The ultrasonic power supply temperature detection circuit has a high-voltage protection function, such that an excessive voltage can be limited within a certain range, preventing latter circuits from being damaged by a high voltage at a detection terminal. Besides, the ultrasonic power supply temperature detection circuit has an n-type filtering circuit by which harmful high-frequency components are filtered from a measuring signal, thereby improving the signal-to-noise ratio and providing a good signal for A/D conversion.
Description
Technical field
The utility model belongs to the industrial control technology field, relates to a kind of circuit, is 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 bigger that the high-power ultrasonics power supply conversion efficiency is influenced by match circuit, and consumed power is big, and not only oscillator generates heat easily, and transformer, inductance generate heat easily, and CPU is heating easily also.Though 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 monitor heatsink temperature in real time.In case it is too high to monitor temperature, just need 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 big high frequency noise.During simultaneously owing to power work, output end voltage is up to last kilovolt, and traditional temperature sensing circuit can not use in this system.
Summary of the invention
The purpose of this utility model is exactly the above-mentioned deficiency at existing testing circuit, and a kind of ultrasonic power temperature sensing circuit is provided.
A kind of ultrasonic power temperature sensing circuit of the utility model comprises platinum temperature detecting resistance R
x, the first Transient Suppression Diode D
1, the second Transient Suppression Diode D
2, first capacitor C
1, second capacitor C
2, the 3rd capacitor C
3, the 4th capacitor C
4, the 5th capacitor C
5, first resistance R
1, 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 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 first resistance R
1An end, second capacitor C
2An end and 2 pin of prime amplifier LM321A be connected platinum resistance R
xThe other end, the second Transient Suppression Diode D
2Anode, first capacitor C
1The other end, first resistance R
1The other end, second capacitor C
2The other end be connected 4 pin of LM321A prime amplifier U1 and 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 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 and 1 pin of ADS1100SA/D conversion chip U2 be connected 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 utility model adopts become and are ripe reliable, with low cost, and the source is abundant.The utlity model has the high voltage protective effect, 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 utility model.
Embodiment
Further specify embodiment of the present utility model 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, first capacitor C
1, second capacitor C
2, the 3rd capacitor C
3, the 4th capacitor C
4, the 5th capacitor C
5, first resistance R
1, 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 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 first resistance R
1An end, second capacitor C
2An end and 2 pin of prime amplifier LM321A be connected platinum resistance R
xThe other end, the second Transient Suppression Diode D
2Anode, first capacitor C
1The other end, first resistance R
1The other end, second capacitor C
2The other end be connected 4 pin of LM321A prime amplifier U1 and 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 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 and 1 pin of ADS1100SA/D conversion chip U2 be connected 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 utility model
1With the second Transient Suppression Diode D
2Constitute 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.First capacitor C
1, inductance L
1, first resistance R
1With second capacitor C
2Constitute ∏ type filtering circuit together, behind the wave circuit, filtering is harmful to radio-frequency component to measuring-signal after filtration.Prime amplifier LM321A and second resistance R
2, the 3rd resistance R
3Constitute the circuit of determining enlargement factor together.The 3rd capacitor C
3With the 5th capacitor C
4Constitute 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. the 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, first capacitor C
1, second capacitor C
2, the 3rd capacitor C
3, the 4th capacitor C
4, the 5th capacitor C
5, first resistance R
1, 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 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 first resistance R
1An end, second capacitor C
2An end and 2 pin of prime amplifier LM321A be connected platinum resistance R
xThe other end, the second Transient Suppression Diode D
2Anode, first capacitor C
1The other end, first resistance R
1The other end, second capacitor C
2The other end be connected 4 pin of LM321A prime amplifier U1 and 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 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 and 1 pin of ADS1100SA/D conversion chip U2 be connected 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 |
|---|---|---|---|
| CN 201220672954 CN203053602U (en) | 2012-12-04 | 2012-12-04 | Ultrasonic power supply temperature detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220672954 CN203053602U (en) | 2012-12-04 | 2012-12-04 | Ultrasonic power supply temperature detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203053602U true CN203053602U (en) | 2013-07-10 |
Family
ID=48736544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220672954 Withdrawn - After Issue CN203053602U (en) | 2012-12-04 | 2012-12-04 | Ultrasonic power supply temperature detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203053602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017928A (en) * | 2012-12-04 | 2013-04-03 | 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 CN 201220672954 patent/CN203053602U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017928A (en) * | 2012-12-04 | 2013-04-03 | 杭州成功超声电源技术有限公司 | Ultrasonic power supply temperature detection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130710 Effective date of abandoning: 20140716 |
|
| RGAV | Abandon patent right to avoid regrant |