CN201639272U - Power protection device of motor controller - Google Patents
Power protection device of motor controller Download PDFInfo
- Publication number
- CN201639272U CN201639272U CN2010201093072U CN201020109307U CN201639272U CN 201639272 U CN201639272 U CN 201639272U CN 2010201093072 U CN2010201093072 U CN 2010201093072U CN 201020109307 U CN201020109307 U CN 201020109307U CN 201639272 U CN201639272 U CN 201639272U
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- China
- Prior art keywords
- conversion unit
- voltage conversion
- power supply
- electrically connected
- electric machine
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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.)
- Expired - Lifetime
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Abstract
The utility model provides a power protection device of a motor controller. An input end of the power protection device is electrically connected with a power supply; an output end of the power protection device is connected with the motor controller; the power protection device comprises a voltage conversion unit and a control unit, wherein the voltage conversion unit is used for supplying power to the motor controller; the control unit is used for detecting voltage of the voltage conversion unit to control the voltage conversion unit to stop operating; an input end of the control unit is electrically connected with a power input end and a power output end of the voltage conversion unit respectively; a power input end of the voltage conversion unit is electrically connected with an output end of the power supply; and the power output end of the voltage conversion unit is electrically connected with the motor controller. The power protection device of the motor controller can detect power voltage loaded on the motor controller and prevent the motor controller from being damaged because of abnormal voltage.
Description
Technical field
The utility model belongs to power technique fields, relates in particular to a kind of apparatus for protecting power supply of electric machine controller.
Background technology
Electric machine controller is the chief component of automotive power; electric machine controller is according to the operating state of the condition control vehicular electric machine of outside when power supply is powered to electric machine controller; present protection for electric machine controller; the house dog of only sampling carries out electric machine controller; promptly have only program to break down; when in timing cycle, not resetting house dog; WatchDog Timer just can overflow and produce reset signal and restart motor controller system; electric machine controller is protected; but because the electric machine controller on the vehicle is at unlocking vehicle with when stopping vehicle; can often power on and cut off the power supply; when or voltage excessive to the supply voltage of electric machine controller power supply occur causing the damage of electric machine controller easily when unusual.
The utility model content
The utility model occurs when unusual for solving in the prior art when the supply voltage of powering excessive or voltage to electric machine controller; cause the problem of the damage of electric machine controller easily, a kind of apparatus for protecting power supply that can detect supply voltage with the electric machine controller of protection electric machine controller is provided.
The utility model provides a kind of apparatus for protecting power supply of electric machine controller; the input of described apparatus for protecting power supply is electrically connected with power supply; the output of described apparatus for protecting power supply is connected with electric machine controller; described apparatus for protecting power supply comprises the voltage conversion unit that is used for to described electric machine controller power supply; and be used to detect the voltage of described voltage conversion unit to control the out-of-work control unit of described voltage conversion unit; the input of described control unit is electrically connected with the power input and the power output end of described voltage conversion unit respectively; the power input of described voltage conversion unit is electrically connected with the output of described power supply, and the power output end of described voltage conversion unit is electrically connected with described electric machine controller.
Further improve, described electric machine controller comprises dsp chip and the external circuit that is electrically connected with dsp chip.
Further improve, described voltage conversion unit comprises first voltage conversion unit that is used for to described dsp chip power supply, and second voltage conversion unit of giving the external circuit power supply of described dsp chip, the output of described control unit is electrically connected with the control input end of described first voltage conversion unit and second voltage conversion unit respectively, the power input of described first voltage conversion unit and second voltage conversion unit and power output end are electrically connected with the input of described control unit respectively, and the power input of described first voltage conversion unit and second voltage conversion unit is electrically connected with described power supply respectively.
Further improve, described voltage conversion unit comprises first voltage conversion unit that is used for to described dsp chip power supply, and second voltage conversion unit of giving the external circuit power supply of described dsp chip, the output of described control unit is electrically connected with the control input end of described first voltage conversion unit, the control input end of described second voltage conversion unit in the control output end of described first voltage conversion unit is electrically connected, the power input of described first voltage conversion unit and described second voltage conversion unit and power output end are electrically connected with the input of described control unit respectively, and the power input of described first voltage conversion unit and second voltage conversion unit is electrically connected with described power supply respectively.
Further improve described first voltage conversion unit and second voltage conversion unit and/or TPS62050 chip.
Further improve, described control unit is the TPS330 chip.
The apparatus for protecting power supply of the electric machine controller that the utility model provides compared with prior art; detect by the output voltage and the input voltage of control unit voltage conversion unit; when detected voltage takes place when unusual; control unit control voltage conversion unit quits work; be that voltage conversion unit stops electric machine controller being powered; thereby realize electric machine controller is protected, prevent that electric machine controller from damaging because of electric voltage exception.
Description of drawings
Fig. 1 is the structured flowchart of a kind of embodiment of the apparatus for protecting power supply of electric machine controller of the present utility model;
Fig. 2 is the circuit diagram of first embodiment of voltage conversion unit of the present utility model;
Fig. 3 is the circuit diagram of second embodiment of voltage conversion unit of the present utility model.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A kind of apparatus for protecting power supply of electric machine controller among the embodiment of the present utility model; the input of described apparatus for protecting power supply is electrically connected with power supply 1; the output of described apparatus for protecting power supply is connected with electric machine controller 4; described apparatus for protecting power supply comprises the voltage conversion unit 2 that is used for to the electric machine controller power supply; and be used to detect the voltage of voltage conversion unit 2 to control described voltage conversion unit 2 out-of-work control units 3; the input of described control unit 3 is electrically connected with the power input and the power output end of described voltage conversion unit 2 respectively; the power input of described voltage conversion unit 2 is electrically connected with the output of described power supply, and the power output end of described voltage conversion unit 2 is electrically connected with described electric machine controller.
Further improve, described electric machine controller 4 comprises dsp chip and the external circuit that is electrically connected with dsp chip.The external circuit of dsp chip and dsp chip is when work, the operating voltage difference that needs, therefore power supply 1 need provide two kinds of power supplys that magnitude of voltage is different, under the preferable case, power supply 1 provides the voltage of 5-12V, provide the voltage of 3.3V and 1.9V by voltage conversion unit 2,1.9V voltage is powered to dsp chip, and 3.3V voltage powers for the external circuit of dsp chip.Certainly electric machine controller 4 also can be single-chip microcomputer and the external circuit that is electrically connected with single-chip microcomputer.
Further improve, as shown in Figure 2, Fig. 2 is first embodiment of described voltage conversion unit 2, described voltage conversion unit 2 comprises first voltage conversion unit 21 that is used for to described dsp chip power supply, and second voltage conversion unit 22 of giving the external circuit power supply of described dsp chip, the output of described control unit 3 respectively with the control input end En1 of described first voltage conversion unit 21 and second voltage conversion unit 22, En2 is electrically connected, the power input Vin1 of described first voltage conversion unit 21 and second voltage conversion unit 22, Vin2 and power output end Vo1, Vo2 is electrically connected with the input of described control unit 3 respectively, and the power input of described first voltage conversion unit 21 and second voltage conversion unit 22 is electrically connected with described power supply respectively.Control unit 3 detects the input voltage and the output voltage of described first voltage conversion unit 21 and second voltage conversion unit 22, when detected magnitude of voltage does not meet prior set point, the control end output stop signal of control unit 3 is given described first voltage conversion unit 21 and second voltage conversion unit 22, controls described first voltage conversion unit 21 and second voltage conversion unit 22 and quits work.
Further improve, because when giving the power supply of dsp chip and external circuit, when external circuit powers on earlier, can cause dsp chip and external circuit simultaneously as output, if when the polarity of output is opposite, dsp chip and external circuit can produce big electric current, dsp chip and external circuit are damaged, even burn.As shown in Figure 3, Fig. 3 is second embodiment of described voltage conversion unit 2, the control output end PG1 of described first voltage conversion unit 21 is electrically connected with the control input end En2 of described second voltage conversion unit 22, power input Vin1, the Vin2 of described first voltage conversion unit 21 and described second voltage conversion unit 22 and power output end Vo1, Vo2 are electrically connected with the input of described control unit 3 respectively, and Vin1, Vin2 are electrically connected with described power supply the power input of described first voltage conversion unit 21 and second voltage conversion unit 22 respectively.When having only described first voltage conversion unit, 21 operate as normal, when promptly exporting 1.9V voltage and working to dsp chip, described first voltage conversion unit 21 is just understood the control input end En2 that the output services signal is given described second voltage conversion unit 22, described second voltage conversion unit, 22 ability operate as normal, the voltage of described second voltage conversion unit, 22 output 3.3V is given the external circuit of dsp chip, makes the external circuit operate as normal of dsp chip.
Further improve, described first voltage conversion unit 21 and/or second voltage conversion unit 22 are the TPS62050 chip, and described control unit 3 is the TPS330 chip.
For the apparatus for protecting power supply of the electric machine controller that the utility model embodiment provides further is described, existing details are as follows in conjunction with second embodiment:
When the power supply of 5V begins to described first voltage conversion unit 21 and described second voltage conversion unit, 22 power supplies, first voltage conversion unit 21 is started working, power to dsp chip earlier, when first voltage conversion unit 21 is exported the voltage of 1.9V, the control output end PG1 of first voltage conversion unit 21 just understands the control input end En2 that the output services signal is given described second voltage conversion unit 22, described second voltage conversion unit, 22 ability operate as normal, the voltage of promptly exporting 3.3V is given the external circuit power supply of dsp chip, thereby prevents to produce big electric current and burn dsp chip.Then control unit 3 begins to detect the input voltage and the output voltage of first voltage conversion unit 21 and described second voltage conversion unit 22; when input voltage does not meet 5V; when the output voltage that first voltage conversion unit, 21 output voltages do not meet 1.9V or described second voltage conversion unit 22 is respectively 3.3V; occur when unusual promptly for the supply power voltage of electric machine controller; the out-of-work signal of control unit 3 outputs is given the control end En1 of first voltage conversion unit 21; the voltage conversion unit 21 of winning is quit work; the control output end PG1 of first voltage conversion unit 21 also can export the control input end En2 that out-of-work signal is given described second voltage conversion unit 22 simultaneously; second voltage conversion unit 22 also can quit work simultaneously; be that voltage conversion unit 2 stops electric machine controller being powered; thereby play the effect that electric machine controller is protected, prevent that electric machine controller from damaging because of electric voltage exception.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1. the apparatus for protecting power supply of an electric machine controller; the input of described apparatus for protecting power supply is electrically connected with power supply; the output of described apparatus for protecting power supply is connected with electric machine controller; it is characterized in that: described apparatus for protecting power supply comprises the voltage conversion unit that is used for to described electric machine controller power supply; and be used to detect the voltage of described voltage conversion unit to control the out-of-work control unit of described voltage conversion unit; the input of described control unit is electrically connected with the power input and the power output end of described voltage conversion unit respectively; the power input of described voltage conversion unit is electrically connected with the output of described power supply, and the power output end of described voltage conversion unit is electrically connected with described electric machine controller.
2. the apparatus for protecting power supply of electric machine controller as claimed in claim 1, it is characterized in that: described electric machine controller comprises dsp chip and the external circuit that is electrically connected with dsp chip.
3. the apparatus for protecting power supply of electric machine controller as claimed in claim 2; it is characterized in that: described voltage conversion unit comprises first voltage conversion unit that is used for to described dsp chip power supply; and second voltage conversion unit of giving the external circuit power supply of described dsp chip; the output of described control unit is electrically connected with the control input end of described first voltage conversion unit and second voltage conversion unit respectively; the power input of described first voltage conversion unit and second voltage conversion unit and power output end are electrically connected with the input of described control unit respectively, and the power input of described first voltage conversion unit and second voltage conversion unit is electrically connected with described power supply respectively.
4. the apparatus for protecting power supply of electric machine controller as claimed in claim 2; it is characterized in that: described voltage conversion unit comprises first voltage conversion unit that is used for to described dsp chip power supply; and second voltage conversion unit of giving the external circuit power supply of described dsp chip; the output of described control unit is electrically connected with the control input end of described first voltage conversion unit; the control input end of described second voltage conversion unit in the control output end of described first voltage conversion unit is electrically connected; the power input of described first voltage conversion unit and described second voltage conversion unit and power output end are electrically connected with the input of described control unit respectively, and the power input of described first voltage conversion unit and second voltage conversion unit is electrically connected with described power supply respectively.
5. as the apparatus for protecting power supply of claim 3 or 4 described electric machine controllers, it is characterized in that: described first voltage conversion unit and/or second voltage conversion unit are the TPS62050 chip.
6. the apparatus for protecting power supply of electric machine controller as claimed in claim 1, it is characterized in that: described control unit is the TPS330 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201093072U CN201639272U (en) | 2010-01-29 | 2010-01-29 | Power protection device of motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201093072U CN201639272U (en) | 2010-01-29 | 2010-01-29 | Power protection device of motor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201639272U true CN201639272U (en) | 2010-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201093072U Expired - Lifetime CN201639272U (en) | 2010-01-29 | 2010-01-29 | Power protection device of motor controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201639272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531570A (en) * | 2016-12-29 | 2017-03-22 | 重庆市渝展电气有限公司 | Device for monitoring state of multi-path switch |
| CN109188976A (en) * | 2018-09-14 | 2019-01-11 | 珠海格力电器股份有限公司 | A kind of control chip |
-
2010
- 2010-01-29 CN CN2010201093072U patent/CN201639272U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531570A (en) * | 2016-12-29 | 2017-03-22 | 重庆市渝展电气有限公司 | Device for monitoring state of multi-path switch |
| CN106531570B (en) * | 2016-12-29 | 2019-01-22 | 重庆市渝展电气有限公司 | For monitoring the device of variable connector state |
| CN109188976A (en) * | 2018-09-14 | 2019-01-11 | 珠海格力电器股份有限公司 | A kind of control chip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen BYD Auto Co., Ltd. Assignor: Biyadi Co., Ltd. Contract record no.: 2011440020513 Denomination of utility model: Power protection device of motor controller Granted publication date: 20101117 License type: Exclusive License Record date: 20111221 |
|
| EM01 | Change of recordation of patent licensing contract |
Change date: 20150427 Contract record no.: 2011440020513 Assignee after: BYD AUTOMOBILE INDUSTRY CO., LTD. Assignee before: Shenzhen BYD Auto Co., Ltd. |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |
|
| CX01 | Expiry of patent term |