CN108267663A - Detection device - Google Patents
Detection device Download PDFInfo
- Publication number
- CN108267663A CN108267663A CN201611264395.1A CN201611264395A CN108267663A CN 108267663 A CN108267663 A CN 108267663A CN 201611264395 A CN201611264395 A CN 201611264395A CN 108267663 A CN108267663 A CN 108267663A
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- Prior art keywords
- circuit
- sensing resistance
- power supply
- supply module
- supply voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- 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)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The disclosure provides a kind of detection device, and it includes the first sensing resistance and detection circuits.First sensing resistance has first end and second end.The first end of first sensing resistance is electrically connected power supply module, and the second end of the first sensing resistance is electrically connected the first load end of Devices to test.Detection circuit is electrically connected power supply module, Devices to test and the first sensing resistance.Detection circuit is detecting the potential difference between the first end and second end of the first sensing resistance.The potential difference with preset value to make comparisons, to generate testing result.Detection device controls the first switching circuit, the first supply voltage that power supply module provides is made to pass through the first switching circuit and is sent to the first load end according to testing result.The detection device that the disclosure provides can automatically detect whether Devices to test occurs short circuit, and then decide whether that power supply runs Devices to test.
Description
Technical field
The present invention relates to a kind of detection devices, particularly a kind of detection device applied to Devices to test.
Background technology
With scientific and technological industrial expansion, each industry has respective board equipment, to oneself product of production.However
Board equipment is before commencement of commercial operation of powering is received, it usually needs by detection program, in order to avoid because of board equipment internal circuit
Exception (such as line short), and lead to the damage of board equipment.Traditionally, board equipment is examined using manual type
Relatively time consuming and accuracy is surveyed also to wait to improve.In order to promote the accuracy of board equipment detection and convenience, it is badly in need of importing automatic
The mode of change is detected board equipment.
Invention content
The present invention proposes a kind of detection device, is to automatically detect whether Devices to test occurs short circuit, and then certainly
Fixed whether power runs Devices to test.
An embodiment according to the present invention proposes a kind of detection device, includes the first sensing resistance and detection circuit.First
Sensing resistance has first end and second end.The first end of first sensing resistance is electrically connected power supply module, the first sensing
The second end of resistance is electrically connected the first load end of Devices to test.Detection circuit is electrically connected power supply module, to be measured sets
It is standby to sense resistance with first.Detection circuit is detecting the potential difference between the first end and second end of the first sensing resistance.Institute
The potential difference stated with preset value to make comparisons, to generate testing result.Detection device is according to testing result, the first switching of control
Circuit makes the first supply voltage that power supply module provides pass through the first switching circuit and is sent to the first load end.
Another embodiment according to the present invention proposes a kind of detection device, includes power supply module, the first sensing resistance
With detection circuit.Power supply module is providing the first supply voltage.First sensing resistance has first end and second end, the
The first end of one sensing resistance is electrically connected power supply module.The second end of first sensing resistance is electrically connected Devices to test
First load end.Detection circuit is electrically connected power supply module, Devices to test and the first sensing resistance.Detection circuit is examining
Survey first sensing resistance first end and second end between potential difference, the potential difference to make comparisons with preset value, with
Generate testing result.Detection device controls the first switching circuit, the first confession for providing power supply module according to testing result
Piezoelectric voltage is sent to the first load end by the first switching circuit.
In summary described, detection device provided by the present invention can obtain the electricity at sensing resistance both ends by detection
Potential difference, and the generation testing result compared with a preset value judge whether Devices to test occurs short circuit according to testing result, and
The first switching circuit is controlled, the first supply voltage that power supply module provides is made to pass through the first switching circuit, and to be sent to first negative
Carry end.
The above explanation about explanation in the present disclosure and following embodiment is to demonstrate and explain this hair
Bright spirit and principle, and the patent claim for providing the present invention is further explained.
Description of the drawings
Fig. 1 is the functional-block diagram of the detection device shown by an embodiment according to the present invention.
Fig. 2 is the circuit framework figure of the detection device shown by an embodiment according to the present invention.
Fig. 3 is the circuit framework figure of the detection device shown by an embodiment according to the present invention.
Fig. 4 is the circuit framework figure of the overheat protector circuit shown by an embodiment according to the present invention.
Reference sign：
1：Detecting system
10：Power supply module
12：Devices to test
121：First load end
123：Second load end
14：First switching circuit
141：Computing circuit
143：Control module
15：Second switching circuit
16：Detection device
161：Processing circuit
163：Detection circuit
1630：Arithmetic unit
Vref：Reference voltage
VIN：Input voltage
C1~C3：Capacitance
R1：First sensing resistance
R4：Second sensing resistance
R2, R3, R5, R6, R8, R10~R14：Resistance
R7、R9：Thermistor
T1~T3：Transistor
Vs、VD：Operating voltage end
GND：Ground terminal
Specific embodiment
The detailed features and advantage of the narration present invention in detail in embodiments below, content are enough to make any to be familiar with
Relevant art understands the technology contents of the present invention and implements according to this, and according to content disclosed in this specification, claim
And attached drawing, it is any to be familiar with relevant art and be readily understood upon the relevant purpose of the present invention and advantage.Following embodiment be into
The one step viewpoint that the present invention will be described in detail, but it is non-anyways to limit scope of the invention.
Please with reference to Fig. 1 and Fig. 2, Fig. 1 is the function of the detection device shown by an embodiment according to the present invention
Block diagram.Fig. 2 is the circuit framework figure of the detection device shown by an embodiment according to the present invention.Such as Fig. 1 and Fig. 2 institutes
Show, detecting system 1 includes power supply module 10, Devices to test 12, the first switching circuit 14 and detection device 16.Detection device
16 include the first sensing resistance R1 and detection circuit 163.First sensing resistance R1 has first end and second end, first end electricity
Property connection power supply module 10, second end be electrically connected Devices to test 12 possessed by the first load end 121.In an example
In, power supply module 10 is general power supply unit, to supply power supply and can have the function of current limliting, in order to avoid because
The electric current of offer is excessive, and back-end circuit is caused to be damaged.Detection circuit 163 is electrically connected power supply module 10, Devices to test
12 and first sense resistance R1.Detection circuit 163 is detecting the electricity between the first end and second end of the first sensing resistance R1
Potential difference.The potential difference with preset value to make comparisons, to generate testing result.In an example, detection device 16 is actually
It is a detection auxiliary device, to detect whether Devices to test 12 has the situation of short circuit.In another example, detection device
16 detection device for an integration, that is, comprising the detection device including power supply module 10, one can be implemented as
For detect Devices to test 12 whether short circuit power supply unit.
Specifically, as shown in Fig. 2, power supply module 10 can provide the voltage (such as 3 volts) to test
To the first sensing resistance R1 and the first load end 121.At this point, the first sensing resistance R1 can generate a cross-pressure, that is, both ends
Potential difference.It should be noted that the voltage cannot be excessive, in case Devices to test 12 is damaged.And detection circuit 163 is exactly
To measure the potential difference at the first sensing resistance R1 both ends.When detection circuit 163 measures the first sensing resistance R1 both ends
Potential difference when, can further the value of the potential difference be made comparisons with a preset value, detect side result so as to obtain one.Detection
Device 16 further according to testing result, controls the first switching circuit 14, the first power supply for providing power supply module 20
Voltage is sent to the first load end 121 by the first switching circuit 14.
In an embodiment, as shown in Figure 1, detection device 16 also includes processing circuit 161.Processing circuit 161 electrically connects
Detection circuit 163 is connect, and processing circuit 161 stores the preset value.In in practice, it is one that processing circuit 161, which can be,
A programmable chip with storage function.Processing circuit 161 is to by the of the preset value and the first sensing resistance R1
Potential difference between one end and second end is compared, to generate testing result.In an embodiment, power supply module 10 is more
The second supply voltage is provided, the second supply voltage is more than the first supply voltage.In more detail, in this embodiment, first supplies
Whether piezoelectric voltage is to detect Devices to test 12 can be with the test voltage of normal operation.And the second supply voltage is provided for
The operating voltage that Devices to test 12 is run.Detection device 16 controls the second switching circuit 15, supplies power supply according to testing result
The second supply voltage that module 10 provides is sent to the first load end 121 by second switching circuit 15.
In an embodiment.When potential difference of the testing result between the first end and second end of the first sensing resistance R1 is small
In the preset value, and less than the first threshold value when, then processing circuit 161 judge Devices to test 12 be in abnormality.Tool
For body, when the potential difference at the first sensing resistance R1 both ends is less than the preset value, and is less than the first threshold value, represent to treat
First load end 121 of measurement equipment 12 has the situation that short circuit occurs.If detection device 16 controls the second switching circuit 15 at this time,
So that the second larger supply voltage is sent to the first load end 121 by the second switching circuit 15, it is possible to so that short circuit
Devices to test 12 causes to damage when receiving the second supply voltage.For the example of a reality, it is assumed that the preset value
It it is 2.5 volts, and the first threshold value is 0.12 volt.And the first sensing resistance R1 both ends detected by detection circuit 163
Potential difference is about 0.1 volt and value is close to 0 volt, and processing circuit 161 just judges the first load end 121 of Devices to test 12 at this time
Short circuit occurs, Devices to test 12 only receives smaller the first supply voltage to test at this time, and larger second supplies
Piezoelectric voltage will not be provided to Devices to test 12, be damaged to avoid Devices to test 12.
In another embodiment, when potential difference of the testing result between the first end and second end of the first sensing resistance R1
When difference between the preset value is less than the second threshold value, then processing circuit 161 judges that Devices to test 12 is in normal
State.More specifically, when the potential difference at the first sensing resistance R1 both ends is close to the preset value, Devices to test 12 is represented
The first load end 121 without occur short circuit situation, Devices to test 12 can be with normal operation.Detection device 16 is controlled at this time
Make the second switching circuit 15 so that the second larger supply voltage is sent to the first load end 121 by the second switching circuit 15,
And then Devices to test 12 is allowed to bring into operation.For the example of a reality, it is assumed that the preset value is 2 volts, and second
Threshold value is 0.6 volt.And the potential difference at the first sensing resistance both ends detected by detection circuit 163 is 1.5 volts.First
It is 0.5 volt to sense the difference between the potential difference at resistance both ends and the preset value, is less than (0.6 volt of the second threshold value
It is special), the potential difference at the first sensing resistance R1 both ends is represented close to the preset value.At this point, processing circuit 161 just judges to represent
Devices to test 12 can be with normal operation without the situation of short circuit.Detection device 16 controls the second switching circuit 15, allows the second confession
Piezoelectric voltage is sent to the first load end 121 by the second switching circuit 15.It is received when Devices to test 12 obtains the first load end 121
During the second supply voltage, formal operation can be started.
In an embodiment, as shown in Fig. 2, detection circuit 163 include an arithmetic unit 1630, be electrically connected resistance R2 with
R3 and capacitance C1 and operating voltage end VD.Wherein, arithmetic unit 1630 has first input end and the second input terminal, electrical respectively
Two endpoints of the first sensing resistance of connection R1.The current potential at the first sensing resistance R1 both ends is exported by arithmetic unit 1630
One signal is to processing circuit 161.Processing circuit 161 compares the signal with stored preset value, to judge to be measured set
Whether standby 12 the first load end 121 occurs short circuit.The Devices to test 12 of aforementioned embodiment only includes the first load end 121.
However, in other embodiment, Devices to test 12 includes multiple load ends.
Fig. 3 is please referred to, Fig. 3 is the circuit framework figure of the detection device shown by an embodiment according to the present invention.Phase
Compared with aforementioned embodiment, in this embodiment, Devices to test 12 is also comprising the second sensing resistance R4, with first end and the
Two ends.The first end of second sensing resistance R4 is electrically connected power supply module 10, and second end is electrically connected the Devices to test 12
The second load end 123.In this embodiment, detection circuit 163 senses to detect the first sensing resistance R1 and second respectively
The potential difference between first end and second end corresponding to resistance R4, and by two measured potential differences respectively with it is described
Preset value is made comparisons, so as to generate testing result.Detection device 16 controls the first switching circuit, makes power supply according to testing result
The first supply voltage that supply module 10 provides is sent to the first load end 121 and the second load end by the first switching circuit
123。
In the embodiment of Fig. 3, power supply module 10 also provides the second supply voltage.Second supply voltage is more than first
Supply voltage.Detection device 16 controls the second switching circuit 15, makes the second of the offer of power supply module 10 according to testing result
Supply voltage is sent to the first load end 121 and the second load end 123 by the second switching circuit 15.As the first sensing resistance R1
Potential difference between first end at least one of with the second sensing resistance R2 and second end is less than preset value, and less than first
During threshold value, first supply voltage that detection device 16 provides power supply module 10 passes through the first switching circuit and is sent to
First load end 121 and the second load end 123.In another example, when the first end and second end of the first sensing resistance R1
Between potential difference and the preset value between difference be less than the second threshold value, and the first end of the second sensing resistance R4 with
When the difference between potential difference and the preset value between second end is again smaller than the second threshold value, detection device 16 makes power supply
The second supply voltage that supply module 10 provides is sent to the first load end 121 and the second load end by the second switching circuit 15
123.In more detail, in the embodiment of Fig. 3, when the first sensing resistance R1 and the second sensing resistance R4 are at least one of
When potential difference between first end and second end is less than preset value and is less than the first threshold value (being assumed to be 0.1 volt), described in
Potential difference close to 0 volt, also mean that the first load end 121 and the second load end 123 at least one be abnormal it is (short
Road) situation, at this point, Devices to test 12 only receives smaller first supply voltage, supplied without receiving larger second
Piezoelectric voltage, to avoid Devices to test 12 because being damaged during short circuit.Conversely, when between the first end and second end of the first sensing resistance R1
Potential difference and the second sensing resistance R4 first end and second end between potential difference respectively between the preset value
When difference is less than the second threshold value (being assumed to be 0.5 volt), then the first sensing resistance R1 and the second sensing resistance R4 are each
From potential difference all close to preset value, also mean that Devices to test 12 does not have the situation that short circuit occurs, at this point, Devices to test 12
The first load end 121 and the second load end 123 receive the second supply voltage and bring into operation.
Fig. 4 is please referred to, Fig. 4 is the circuit framework of the overheat protector circuit shown by an embodiment according to the present invention
Figure.In this embodiment, as shown in figure 4, switching circuit 14 includes computing circuit 141 and control module 143.Control module 143
It is electrically connected detection circuit 163.Computing circuit 141 provides control voltage Vc extremely according to input voltage VIN and reference voltage Vref
Control module 143.Control module 143 makes detection circuit 163 selectively receive the first supply voltage according to control voltage Vc.
Computing circuit 141 includes arithmetic unit 1410, resistance R10 and R11 and capacitance C2 and C3, and control module 143 includes electric group
R12-R14 and transistor T3.In this embodiment, detection device 16 also includes the overheat protector circuit 165 of Fig. 4.Temperature protection
Circuit 165 has sensible heat module 1650, is electrically connected computing circuit 141.Sensible heat module 1650 includes thermistor R7, R9, with
And transistor T1, T2.Thermistor R7, R9 are respectively provided with first end and second end.The first end of thermistor R7, R9 are electrical
Connect ground terminal GND.In this embodiment, thermistor R7, R9 are adjacent to detection circuit 163.The impedance of thermistor R7, R9
Value can generate variation with the temperature of detection circuit 163.
Specifically, thermistor R7, R9 is a kind of sensor resistance, has different impedance values under different temperatures.
In this embodiment, thermistor R7, R9 are disposed in proximity to the position of detection circuit 163, are run to sense detection circuit 163
When generated temperature.When the temperature raising of detection circuit 163, the impedance value of thermistor R7, R9 can also decline therewith.Instead
It, when the temperature of detection circuit 163 reduces, the impedance value of thermistor R7, R9 can also rise therewith.
Transistor T1, T2 are respectively provided with main control end, first end and second end.The main control end difference of transistor T1, T2 are electrical
The second end of thermistor R7, R9 are connected, and operating voltage end Vs is electrically connected by resistance R6 and R8 respectively.Transistor T1's
First end is electrically connected computing circuit 141, and is electrically connected operating voltage end Vs by resistance R5.The second end electricity of transistor T1
Property connection transistor T2 first end.The second end of transistor T2 is electrically connected ground terminal GND.Transistor T1, T2 foundation respectively
Respective impedance value, the current path of selective ON operation voltage end Vs and ground terminal GND, generates input voltage VIN according to this.
More specifically, when detection circuit 163 starts raising in the middle temperature of operational process, thermistor R7, R9's
Impedance value can therewith decline due to the temperature of detection circuit 163 improves, the partial pressure of the main control end of transistor T1, T2 also can and then under
Drop.When detection circuit 163 when the temperature is excessively high, the partial pressure can drive transistor T1, T2 be not turned on operating voltage end Vs with
The current path of ground terminal GND so that the voltage that operating voltage end Vs is provided flows into computing circuit 141.At this point, input voltage
The current potential of VIN is higher than the current potential of reference voltage Vref, and the control voltage Vc that computing circuit 141 is exported is high potential.And it controls
The main control end of transistor T3 in module 143 is also high potential via the voltage received by resistance R12, at this time transistor T3
Conducting, the first supply voltage that power supply module 10 is provided just will not be input to detection circuit 163, but flow directly into and connect
Ground terminal GND.Thus, which detection circuit 163 stops receiving the first supply voltage, temperature mistake would not be made because of continuing to run with
Height leads to circuit damage, and then achievees the effect that protect detection circuit.
In summary it is described, in the operation of detection device provided by the present invention, it can be detected and felt by detection circuit
The potential difference at measuring resistance both ends, and compared with a preset value, and testing result is obtained, and to be measured to judge according to testing result
Whether equipment occurs short circuit, and controls the first switching circuit, and the first supply voltage that power supply module provides is made to pass through first
Switching circuit is sent to the first load end.Therefore, detection device of the invention can shorten the time of artificial detection Devices to test,
And reduce the loss caused by artificial erroneous judgement.Equipment burnout can be more caused to avoid short circuit, and improves detection precision with carrying
Rise product quality.
Although the present invention is disclosed as above with aforementioned embodiment, however, it is not to limit the invention.This hair is not being departed from
In bright spirit and scope, carried out by variation and retouching, belong to the present invention scope of patent protection.It is defined about the present invention
Protection domain please refers to appended claim.
Claims (10)
1. a kind of detection device, which is characterized in that include：
One first sensing resistance, has a first end and a second end, and the first end of the first sensing resistance is electrically connected one
Power supply module, the second end of the first sensing resistance are electrically connected one first load end of a Devices to test；And
One detection circuit is electrically connected the power supply module, the Devices to test and the first sensing resistance, the detection circuit and uses
To detect the potential difference between the first end and the second end of the first sensing resistance, to make comparisons with a preset value, with
A testing result is generated, which controls one first switching circuit, carry the power supply module according to the testing result
One first supply voltage supplied is sent to first load end by first switching circuit.
2. a kind of detection device, which is characterized in that include：
One power supply module, to provide one first supply voltage；
One first sensing resistance, has a first end and a second end, and the first end of the first sensing resistance is electrically connected should
Power supply module, the second end of the first sensing resistance are electrically connected one first load end of a Devices to test；And
One detection circuit is electrically connected the power supply module, the Devices to test and the first sensing resistance, the detection circuit and uses
To detect the potential difference between the first end and the second end of the first sensing resistance, to make comparisons with a preset value, with
A testing result is generated, which controls one first switching circuit, carry the power supply module according to the testing result
First supply voltage supplied is sent to first load end by first switching circuit.
3. the detection device as described in claim 1 or claim 2 also comprising a processing circuit, is electrically connected detection electricity
Road, the processing circuit store the preset value, the processing circuit to according to the preset value and the first sensing resistance this
Potential difference between one end and the second end, to generate the testing result.
4. detection device as claimed in claim 3, the wherein power supply module more provide one second supply voltage, this second
Supply voltage is more than first supply voltage, which controls one second switching circuit, make the electricity according to the testing result
Second supply voltage that source supply module provides is sent to first load end by second switching circuit.
5. detection device as claimed in claim 4, wherein when the testing result for the first sensing resistance the first end with
Potential difference between the second end is less than the preset value, and during less than first threshold value, then the processing circuit judges that this is to be measured
Equipment is in abnormality, and first supply voltage which provide the power supply module passes through this and first switches
Circuit is sent to first load end.
6. detection device as claimed in claim 4, wherein when the testing result for the first sensing resistance the first end with
When the difference between potential difference and the preset value between the second end is less than second threshold value, then processing circuit judgement should
Devices to test is in normal condition, second supply voltage which provide the power supply module pass through this second
Switching circuit is sent to first load end.
7. detection device as claimed in claim 3 also comprising one second sensing resistance, has a first end and a second end,
The first end of the second sensing resistance is electrically connected the power supply module, and the second end of the second sensing resistance electrically connects
Connect one second load end of the Devices to test, the detection circuit also to detect the first end of the second sensing resistance with this
Potential difference between two ends, to make comparisons with the preset value, to generate the testing result, the detection device is according to the detection knot
Fruit controls first switching circuit, and first supply voltage that the power supply module provides is made to pass through first switching circuit
It is sent to first load end and second load end.
8. detection device as claimed in claim 7, the wherein power supply module also provide one second supply voltage, this second
Supply voltage is more than first supply voltage, which controls one second switching circuit, make the electricity according to the testing result
It is second negative with this that second supply voltage that source supply module provides by second switching circuit is sent to first load end
Carry end.
9. detection device as claimed in claim 8, wherein when the first sensing resistance with the second sensing resistance at least within
One of the first end and the second end between potential difference be less than the preset value, and less than first threshold value when, the processing
Circuit judges that the Devices to test is in abnormality, which makes first supply voltage that the power supply module provides
First load end and second load end are sent to by first switching circuit, when the first end of the first sensing resistance
The difference between potential difference and the preset value between the second end is less than one second threshold value, and the second sensing resistance
When the difference between potential difference and the preset value between the first end and the second end is less than second threshold value, processing electricity
Road judges that the Devices to test is in normal condition, and second supply voltage which provide the power supply module leads to
It crosses second switching circuit and is sent to first load end and second load end.
10. the detection device as described in claim 1 or claim 2, wherein first switching circuit include a computing circuit
With a control module, which is electrically connected the detection circuit, and the computing circuit is according to an input voltage and one with reference to electricity
Pressure, provides a control voltage to the control module, which makes the detection circuit selectively connect according to the control voltage
First supply voltage is received, which also includes an overheat protector circuit, comprising：
One sensible heat module, is electrically connected the computing circuit, the sensible heat module, comprising：
An at least thermistor, has a first end and a second end, and the first end of at least temperature-sensitive electricity is electrically connected one
Ground terminal, which is adjacent to the detection circuit, and an impedance value of an at least thermistor is with the inspection
The temperature of slowdown monitoring circuit and change；And
An at least transistor, has a main control end, a first end and a second end, and the main control end of an at least transistor is electrical
The second end of an at least thermistor is connected, the first end of an at least transistor is electrically connected the computing circuit and one
Operating voltage end, the second end are electrically connected the ground terminal, which is selectively connected the work according to the impedance value
Make the current path of voltage end and the ground terminal, generate the input voltage according to this.
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| CN201611264395.1A CN108267663B (en) | 2016-12-30 | 2016-12-30 | Detection device |
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| CN201611264395.1A CN108267663B (en) | 2016-12-30 | 2016-12-30 | Detection device |
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| CN112649755A (en) * | 2020-11-27 | 2021-04-13 | 斯泰宝机电科技(昆山)有限公司 | Brushless motor controller self-checking method and device and brushless motor |
| CN112649755B (en) * | 2020-11-27 | 2024-02-06 | 斯泰宝机电科技(昆山)有限公司 | Brushless motor controller self-checking method and device and brushless motor |
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