CN101078748A - Brushless motor Hall detector - Google Patents
Brushless motor Hall detector Download PDFInfo
- Publication number
- CN101078748A CN101078748A CN 200710028639 CN200710028639A CN101078748A CN 101078748 A CN101078748 A CN 101078748A CN 200710028639 CN200710028639 CN 200710028639 CN 200710028639 A CN200710028639 A CN 200710028639A CN 101078748 A CN101078748 A CN 101078748A
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- differential amplifier
- brushless motor
- hall
- triode
- light emitting
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Abstract
The invention relates to a hall measuring instrument of brushless motor, comprising three parallel measuring circuits constituted by regulated power supply (1), hall component (2), differential amplifier (3), Schmitt trigger (4), triode transistor (5) and LED (6). The outputting end of hall component in the measuring circuit is connected to the differential amplifier. The inputting end of Schmitt trigger is connected to the differential amplifier and the outputting end is connected to the base electrode of triode transistor. The lead-out wire of collecting electrode of triode transistor connected with the LED in series is connected with the signal of controller (7) and motor. Voltage stabilized circuit connected to the outputting end of motor controller provides regulated power supply for all components and there is LED in parallel in the input of voltage stabilized circuit. The invention is provided with simple structure, low production cost, very convenient and quick use and accurate measuring result. It is suitable for development and use.
Description
Technical field
The present invention relates to a kind of pick-up unit of brushless electric machine sensor, especially relate to a kind of brushless motor Hall detector.
Background technology
At present, along with the develop rapidly of China's electric motor car industry, the people who is engaged in electric motor car operation, sale, maintenance and use is more and more, and in use, motor can break down, and wherein problem is to appear on the sensor mostly.Whether for judging is the problem of sensor, generally be in the past to adopt universal electric meter whether to come the detection line conducting, but this method is low for the sensor efficiency that detects brushless electric machine, but also not necessarily accurate.
Summary of the invention
Purpose of the present invention just provides a kind of simple in structurely, easy to use, detects brushless motor Hall detector fast and accurately.
For achieving the above object, brushless motor Hall detector of the present invention, comprise by the detection loop that comprises that stabilized voltage supply, Hall element, differential amplifier, Schmidt trigger, triode and light emitting diode are formed, it is characterized in that: Hall element exports differential amplifier in the described detection loop, the input of Schmidt trigger connects differential amplifier, output then to the base stage of triode, and the collector extension line that is in series with the triode of light emitting diode is connected on the signal wire of controller and motor; The mu balanced circuit that inserts electric machine controller output is for providing each element stabilized voltage supply.
On the basis of the above, the present invention also can further improve and have various remodeling.
Described Hall detector comprises the detection loop of three parallel connections.
Described mu balanced circuit input is parallel with light emitting diode.
Principle of work of the present invention is to utilize the energising semiconductor will produce a characteristic perpendicular to the voltage in magnetic field in magnetic field, and the light emitting diode of connecting according to the alternation state of light emitting diode, judges whether electromechanical transducer damages.
Beneficial effect: the present invention is simple in structure, and production cost is low, use is very convenient quick, and testing result 100 is accurate, is fit to promote the use of.
Description of drawings
Fig. 1 is the circuit theory synoptic diagram of the embodiment of the invention 1.
Fig. 2 is the circuit theory synoptic diagram of the embodiment of the invention 2.
Among the figure: 1-stabilized voltage supply, 2-Hall element, 3-differential amplifier, 4-Schmidt trigger, 5-triode, 6-light emitting diode, 7-electric machine controller.
Embodiment
As shown in Figure 1, brushless motor Hall detector embodiment 1 of the present invention, comprise stabilized voltage supply 1, Hall element 2, differential amplifier 3, Schmidt trigger 4, triode 5 and light emitting diode 6, Hall element 2 export differential amplifier 3 to, the output of differential amplifier 3 inserts the output of Schmidt trigger 4, Schmidt trigger 4 then to the base stage of triode 5, and the collector extension line that is in series with the triode of light emitting diode 6 is connected on the signal wire of controller 7 and motor; The voltage-stabilized power supply circuit 1 that inserts electric machine controller output is for providing each element stabilized voltage supply, and the mu balanced circuit input end is parallel with light emitting diode 6.
Above-mentioned stabilized voltage supply, Hall element, differential amplifier, Schmidt trigger and triode are a subassembly, are to have mated the existing goods that connects mutually.
Brushless electric machine sensor with the detection electric motor car is an example, in use, the output of electric machine controller is inserted in the power supply input jack of this detector, that is to say and be input in the voltage-stabilized power supply circuit, the transistor collector extension line that again mu balanced circuit is in series with light emitting diode is connected on the signal wire of controller for electric vehicle and motor, turn on the power switch the bright lamp of detector power light, at this moment rotate trailing wheel with hand, monitor phase line pilot lamp is by the alternating rule flicker, illustrate that electromechanical transducer is intact, need to check other problems.Not luminous or normal when bright when detector phase line pilot lamp, illustrate that bad need of this phase line sensor change.
Brushless motor Hall detector embodiment 2 of the present invention shown in Figure 2, Hall detector comprises the detection loop of three parallel connections, so can simultaneously three extension lines be connected on respectively on the three-phase signal line of controller for electric vehicle, whether bad, further raise the efficiency if detecting the three-phase sensor simultaneously.
Claims (3)
1, a kind of brushless motor Hall detector, comprise by the detection loop that comprises that stabilized voltage supply (1), Hall element (2), differential amplifier (3), Schmidt trigger (4), triode (5) and light emitting diode (6) are formed, it is characterized in that: Hall element exports differential amplifier in the described detection loop, the input of Schmidt trigger connects differential amplifier, output then to the base stage of triode, and the collector extension line that is in series with the triode of light emitting diode is connected on the signal wire of controller (7) and motor; The mu balanced circuit that inserts electric machine controller output is for providing each element stabilized voltage supply.
2, brushless motor Hall detector according to claim 1 is characterized in that: described Hall detector comprises the detection loop of three parallel connections.
3, brushless motor Hall detector according to claim 1 and 2 is characterized in that: described mu balanced circuit input is parallel with light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710028639 CN101078748A (en) | 2007-06-18 | 2007-06-18 | Brushless motor Hall detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710028639 CN101078748A (en) | 2007-06-18 | 2007-06-18 | Brushless motor Hall detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101078748A true CN101078748A (en) | 2007-11-28 |
Family
ID=38906316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710028639 Pending CN101078748A (en) | 2007-06-18 | 2007-06-18 | Brushless motor Hall detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101078748A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109360B (en) * | 2009-12-24 | 2012-07-11 | 上海华虹Nec电子有限公司 | Signal processing circuit of linear Hall sensor |
| CN102678903A (en) * | 2012-05-10 | 2012-09-19 | 宁波高发汽车控制***股份有限公司 | Automatic gearshift device of automobile |
| CN101771377B (en) * | 2008-12-31 | 2013-06-05 | 北京中纺锐力机电有限公司 | Realizing circuit of sensor of high-reliability switch reluctance motor |
| CN113552469A (en) * | 2021-07-26 | 2021-10-26 | 东风汽车股份有限公司 | Pure electric light truck battery replacement box locking detection circuit and method |
-
2007
- 2007-06-18 CN CN 200710028639 patent/CN101078748A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771377B (en) * | 2008-12-31 | 2013-06-05 | 北京中纺锐力机电有限公司 | Realizing circuit of sensor of high-reliability switch reluctance motor |
| CN102109360B (en) * | 2009-12-24 | 2012-07-11 | 上海华虹Nec电子有限公司 | Signal processing circuit of linear Hall sensor |
| CN102678903A (en) * | 2012-05-10 | 2012-09-19 | 宁波高发汽车控制***股份有限公司 | Automatic gearshift device of automobile |
| CN102678903B (en) * | 2012-05-10 | 2015-04-01 | 宁波高发汽车控制***股份有限公司 | Automatic gearshift device of automobile |
| CN113552469A (en) * | 2021-07-26 | 2021-10-26 | 东风汽车股份有限公司 | Pure electric light truck battery replacement box locking detection circuit and method |
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| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |