CN111829556B - System and method for improving instantaneous pumping capacity of system based on detection resistor - Google Patents
System and method for improving instantaneous pumping capacity of system based on detection resistor Download PDFInfo
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- CN111829556B CN111829556B CN202010604102.XA CN202010604102A CN111829556B CN 111829556 B CN111829556 B CN 111829556B CN 202010604102 A CN202010604102 A CN 202010604102A CN 111829556 B CN111829556 B CN 111829556B
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- 238000001514 detection method Methods 0.000 title claims abstract description 112
- 238000005086 pumping Methods 0.000 title abstract description 10
- 238000000034 method Methods 0.000 title abstract description 7
- 238000000605 extraction Methods 0.000 claims abstract description 6
- 230000005669 field effect Effects 0.000 claims description 25
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
- G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
- G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
- G01D3/0365—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves the undesired influence being measured using a separate sensor, which produces an influence related signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
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- Physics & Mathematics (AREA)
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- Measurement Of Current Or Voltage (AREA)
Abstract
The invention relates to the technical field of system safe operation, and provides a system and a method for improving the instantaneous load extraction capacity of a system based on a detection resistor, wherein the system comprises: the detection resistor temperature detection module is used for detecting the self temperature of the detection resistor in the system and acquiring the self temperature of the detection resistor in real time; the voltage comparison module is connected with the detection resistor temperature detection module and used for comparing the voltage according to the voltage change caused by the temperature change of the detection resistor detected by the detection resistor temperature detection module to generate an adjustment instruction for adjusting the resistance accuracy of the detection resistor; the resistance accuracy adjusting module is connected with the voltage comparing module and used for adjusting the resistance accuracy of the detecting resistor according to the adjusting instruction transmitted to by the voltage comparing module, increasing the dynamic load-pumping response of the large voltage and matching with the temperature to regulate and control the error of the detecting resistor.
Description
Technical Field
The invention belongs to the technical field of safe operation of a system, and particularly relates to a system and a method for improving the instantaneous load extraction capacity of the system based on a detection resistor.
Background
At present, as the cloud industry is developed vigorously, the information processing flow is increased greatly, the industrial scale is enlarged, and the unit usage is enlarged, the precision of electronic components operating on the first line needs to be increased gradually, for example, a hot plug (hotspot) circuit, so that the precision of a detection protection device needs to be further improved.
Once the unit current consumption increases, the electronic components will generate heat, and whether the components are connected in series on the unit path or the Voltage Regulator (VR) suitable for voltage conversion, various related products will be affected by the temperature to generate errors, so the efficiency will decrease slightly, and the components will be burned out and not compensated.
When designing the circuit topology, a series resistor is usually placed at the front end of the input power source and connected in series with a metal oxide semiconductor field effect transistor, and the metal oxide semiconductor field effect transistor is switched to protect the terminal assembly from damaging the terminal device due to excessive current caused by hot insertion. Usually, if the previous series resistance affects the series resistance itself due to the ambient temperature, or other factors, the feedback bits from the analog-to-digital converter (ADC) to the controller will be affected.
The same factory production resistance can only guarantee the production precision at 1% -5%, especially will increase in the low impedance component error, cause the error on the detection loop, so as to cause the same product that uses, the ambient temperature influence, or the precision of the product itself, influence the error on the whole system. Especially during system voltage start-up, the probability of damage is particularly high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a system instantaneous load extraction capability improving system based on a detection resistor, and aims to solve the problems that the detection resistor value is influenced by a factor of rapid temperature rise caused by misoperation during initial action and the system misoperation is caused by large-current load extraction in the prior art.
The technical scheme provided by the invention is as follows: a system for improving the instantaneous load extraction capability of a system based on a detection resistor comprises:
the detection resistor temperature detection module is used for detecting the self temperature of the detection resistor in the system and acquiring the self temperature of the detection resistor in real time;
the voltage comparison module is connected with the detection resistor temperature detection module and used for comparing the voltage according to the voltage change caused by the temperature change of the detection resistor detected by the detection resistor temperature detection module to generate an adjustment instruction for adjusting the resistance accuracy of the detection resistor;
and the resistance accuracy adjusting module is connected with the voltage comparing module and used for adjusting the resistance accuracy of the detecting resistor according to the adjusting instruction transmitted to by the voltage comparing module.
As an improved solution, the detection resistor temperature detection module is a thermistor NTC, and the thermistor NTC is connected in series to a line between the voltage comparison module and the voltage output terminal Vout.
As an improved scheme, a resistor R1 is arranged on a line between the thermistor NTC and the voltage output terminal Vout.
As an improved scheme, the detection resistor is connected in series on a line between the voltage output end Vout and a voltage input end Vin of the system;
and a field effect transistor Q2 is connected in series on a line between the detection resistor and the voltage output end Vout.
As an improved scheme, the voltage comparison module is n comparators connected in parallel.
As an improved scheme, the resistance accuracy adjusting module is a field effect transistor Q1.
The drain electrode of the field effect transistor Q1 is connected to a line between the detection resistor and the voltage input end Vin, the source electrode of the field effect transistor Q1 is connected to a line between the detection resistor and the voltage output end Vout, and the gate electrode of the field effect transistor Q1 is connected to the voltage comparison module.
As an improved scheme, the same-direction input ends of the n comparators are respectively connected with one end of the thermistor NTC, the reverse-direction input ends of the n comparators are connected with the corresponding capacitors in series and then grounded, and the output ends of the n comparators are respectively connected with the grid of the field effect transistor Q1.
Another objective of the present invention is to provide a method for improving system instantaneous load-pulling capability based on detection resistor, which includes the following steps:
the temperature of the detection resistor is detected through the thermistor NTC, and a voltage division value obtained by detecting the temperature is fed back to the voltage comparison module;
the voltage comparison module compares the voltage according to the fed-back divided voltage value to generate an adjustment instruction for adjusting the resistance accuracy of the detection resistor;
according to the adjusting instruction transmitted by the voltage comparison module, the resistance accuracy adjusting module adjusts the resistance accuracy of the detection resistor.
In the embodiment of the invention, the detection resistor temperature detection module is used for detecting the self temperature of the detection resistor in the system and acquiring the self temperature of the detection resistor in real time; the voltage comparison module is connected with the detection resistor temperature detection module and used for comparing the voltage according to the voltage change caused by the temperature change of the detection resistor detected by the detection resistor temperature detection module to generate an adjustment instruction for adjusting the resistance accuracy of the detection resistor; and the resistance accuracy adjusting module is connected with the voltage comparing module and used for adjusting the resistance accuracy of the detection resistor according to the adjusting instruction transmitted to the voltage comparing module, increasing the dynamic load pumping response of the large voltage and matching with the temperature to regulate and control the detection resistor error.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of a system for improving instantaneous pumping capability of a system based on a detection resistor according to the present invention;
fig. 2 is a flowchart illustrating an implementation of the method for improving the instantaneous pumping capability of the system based on the detection resistor according to the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.
Fig. 1 is a schematic structural diagram of a system for improving instantaneous load-pulling capability of a system based on a detection resistor according to the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown in the diagram.
The system for improving the instantaneous pumping capacity of the system based on the detection resistance comprises:
the detection resistor temperature detection module 11 is used for detecting the self temperature of the detection resistor in the system and acquiring the self temperature of the detection resistor in real time;
the voltage comparison module 12 is connected to the detection resistor temperature detection module, and configured to compare the voltage according to a change of the voltage caused by a temperature change of the detection resistor detected by the detection resistor temperature detection module, and generate an adjustment instruction for adjusting the resistance accuracy of the detection resistor;
and the resistance accuracy adjusting module 13 is connected with the voltage comparing module and used for adjusting the resistance accuracy of the detection resistor according to the adjusting instruction transmitted by the voltage comparing module.
In this embodiment, the detection resistor temperature detection module 11 is a thermistor NTC, and the thermistor NTC is connected in series with a line between the voltage comparison module and the voltage output terminal Vout; and a resistor R1 is arranged on a line between the thermistor NTC and the voltage output end Vout.
In the embodiment of the present invention, referring to fig. 1, the detection resistor is connected in series on a line between the voltage output terminal Vout and the voltage input terminal Vin of the system;
the field effect transistor Q2 is connected in series on a circuit between the detection resistor and the voltage output end Vout. As shown in fig. 1, the voltage comparing module 12 is n comparators connected in parallel, and the resistance accuracy adjusting module is a field effect transistor Q1.
The drain electrode of the field effect transistor Q1 is connected to a line between the detection resistor and the voltage input end Vin, the source electrode of the field effect transistor Q1 is connected to a line between the detection resistor and the voltage output end Vout, and the grid electrode of the field effect transistor Q1 is connected with the voltage comparison module;
the same-direction input ends of the n comparators are respectively connected with one end of the thermistor NTC, the reverse-direction input ends of the n comparators are connected with the corresponding capacitors in series and then grounded, and the output ends of the n comparators are respectively connected with the grid electrode of the field effect transistor Q1.
In this embodiment, when the system is in a steady state, the detection resistor generally generates heat due to the ambient temperature and the current flowing through the system during operation, which affects the accuracy of the detection resistor, the NTC resistance value is lower as the temperature is higher, the obtained divided voltage is fed back to the comparator, the corresponding voltage is compared and the field effect transistor Q1 is driven, the accuracy of the overall detection resistor is regulated and controlled in parallel with the detection resistor through the characteristic that the field effect transistor Q1 operates in the resistance region, and generally the voltage and the current are slowly established when the system is started, so as to avoid the damage of the back-end device.
If there is other abnormality between the guide blocks due to the back-end output, the power limit of the controller is not started under the condition that the current is increased instantly, the front-end detection resistor needs to bear a quite long time to receive the protection instruction output by the controller, and the field-effect tube Q2 is turned off, and the risk borne by the detection resistor is relatively great, so that once the temperature of the NTC detection resistor is detected to be too high, the output end point voltage is led in to turn on the field-effect tube Q1, and the output current is increased to accelerate the establishment of the output voltage if the output end point capacitance is fixed, so that the driving voltage of the field-effect tube Q1 is rapidly increased to the output voltage, the Rdson is reduced, the turn-on amount of the whole detection resistor can be increased, and the whole system cannot trigger false operation due to the dynamic pumping response during the startup. So that the transient response on the whole loop can be improved.
Fig. 2 shows a flowchart of an implementation of the method for improving the instantaneous pumping capability of the system based on the detection resistor, which specifically includes the following steps:
in step S101, the temperature of the detection resistor is detected by the thermistor NTC, and a voltage division value obtained by detecting the temperature is fed back to the voltage comparison module;
in step S102, the voltage comparison module compares the voltage according to the fed-back divided voltage value to generate an adjustment instruction for adjusting the resistance accuracy of the detection resistor;
in step S103, the resistance accuracy adjusting module adjusts the resistance accuracy of the detecting resistor according to the adjusting command transmitted by the voltage comparing module.
In the embodiment of the invention, the detection resistor temperature detection module is used for detecting the self temperature of the detection resistor in the system and acquiring the self temperature of the detection resistor in real time; the voltage comparison module is connected with the detection resistor temperature detection module and is used for comparing the voltage according to the voltage change caused by the temperature change of the detection resistor detected by the detection resistor temperature detection module to generate an adjustment instruction for adjusting the resistance accuracy of the detection resistor; and the resistance accuracy adjusting module is connected with the voltage comparing module and used for adjusting the resistance accuracy of the detection resistor according to the adjusting instruction transmitted to the voltage comparing module, increasing the dynamic load pumping response of the large voltage and matching with the temperature to regulate and control the detection resistor error.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (1)
1. A system for improving the instantaneous load extraction capability of a system based on a detection resistor is characterized by comprising:
the detection resistor temperature detection module is used for detecting the self temperature of the detection resistor in the system and acquiring the self temperature of the detection resistor in real time;
the voltage comparison module is connected with the detection resistor temperature detection module and used for comparing the voltage according to the voltage change caused by the temperature change of the detection resistor detected by the detection resistor temperature detection module to generate an adjustment instruction for adjusting the resistance accuracy of the detection resistor;
the resistance accuracy adjusting module is connected with the voltage comparing module and used for adjusting the resistance accuracy of the detecting resistor according to the adjusting instruction transmitted to the voltage comparing module;
the detection resistor temperature detection module is a thermistor NTC which is connected in series on a line between the voltage comparison module and the voltage output end Vout;
a resistor R1 is arranged on a line between the thermistor NTC and the voltage output end Vout;
the detection resistor is connected in series on a line between the voltage output end Vout and a voltage input end Vin of a system;
a field effect transistor Q2 is connected in series on a line between the detection resistor and the voltage output end Vout;
the voltage comparison module comprises n comparators connected in parallel;
the resistance accuracy adjusting module is a field effect transistor Q1,
the drain electrode of the field effect transistor Q1 is connected to a line between the detection resistor and the voltage input end Vin, the source electrode of the field effect transistor Q1 is connected to a line between the detection resistor and the voltage output end Vout, and the grid electrode of the field effect transistor Q1 is connected with the voltage comparison module;
the same-direction input ends of the n comparators are respectively connected with one end of the thermistor NTC, the reverse input ends of the n comparators are connected with the corresponding capacitors in series and then grounded, and the output ends of the n comparators are respectively connected with the grid electrode of the field effect transistor Q1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010604102.XA CN111829556B (en) | 2020-06-29 | 2020-06-29 | System and method for improving instantaneous pumping capacity of system based on detection resistor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010604102.XA CN111829556B (en) | 2020-06-29 | 2020-06-29 | System and method for improving instantaneous pumping capacity of system based on detection resistor |
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| CN111829556A CN111829556A (en) | 2020-10-27 |
| CN111829556B true CN111829556B (en) | 2023-01-06 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967755A (en) * | 2011-09-01 | 2013-03-13 | 鸿富锦精密工业（深圳）有限公司 | Inductive current detecting circuit |
| CN104713659A (en) * | 2015-02-09 | 2015-06-17 | 中国科学院半导体研究所 | Thermistor resistance linear compensation circuit based on transistor output characteristic |
| CN108254099A (en) * | 2017-12-29 | 2018-07-06 | 惠州市德赛西威汽车电子股份有限公司 | A kind of temperature sensing circuit of thermistor |
| TWI629857B (en) * | 2017-07-25 | 2018-07-11 | 修附電機股份有限公司 | Temperature controlling protection device of water pump |
-
2020
- 2020-06-29 CN CN202010604102.XA patent/CN111829556B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967755A (en) * | 2011-09-01 | 2013-03-13 | 鸿富锦精密工业（深圳）有限公司 | Inductive current detecting circuit |
| CN104713659A (en) * | 2015-02-09 | 2015-06-17 | 中国科学院半导体研究所 | Thermistor resistance linear compensation circuit based on transistor output characteristic |
| TWI629857B (en) * | 2017-07-25 | 2018-07-11 | 修附電機股份有限公司 | Temperature controlling protection device of water pump |
| CN108254099A (en) * | 2017-12-29 | 2018-07-06 | 惠州市德赛西威汽车电子股份有限公司 | A kind of temperature sensing circuit of thermistor |
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| CN111829556A (en) | 2020-10-27 |
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