CN203759199U - Aging device used for aging of three-phase bridge circuit - Google Patents
Aging device used for aging of three-phase bridge circuit Download PDFInfo
- Publication number
- CN203759199U CN203759199U CN201420072137.3U CN201420072137U CN203759199U CN 203759199 U CN203759199 U CN 203759199U CN 201420072137 U CN201420072137 U CN 201420072137U CN 203759199 U CN203759199 U CN 203759199U
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- circuit unit
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- phase bridge
- aging
- ageing
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- 230000032683 aging Effects 0.000 title claims abstract description 36
- 230000002431 foraging effect Effects 0.000 title abstract 3
- 230000010355 oscillation Effects 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 abstract 2
- 230000005611 electricity Effects 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The utility model discloses an aging device used for aging of a three-phase bridge circuit. The aging device comprises an oscillation circuit unit which is respectively connected with a first signal delay circuit unit and a signal inversion circuit unit. The first signal delay circuit unit is connected with a first signal inversion isolation circuit unit. The signal inversion circuit unit is connected with a second signal delay circuit unit which is connected with a second signal inversion isolation circuit unit. According to the aging device used for aging of the three-phase bridge circuit, structure of a drive circuit is simplified, requirement for equipment in aging is reduced, electricity consumption is effectively reduced, structure is simple and cost is low.
Description
Technical field
The utility model belongs to three phase bridge circuit ageing technical field, is specifically related to a kind of ageing device for three phase bridge circuit ageing.
Background technology
At present, according to the regulation of GJB2438A-2002, all circuit all will carry out ageing screening before payment.Three phase bridge circuit is mainly used in the driving of three-phase brushless dc motor.Conventionally, when reality is tested, need the driving circuit of more complicated and a brshless DC motor that hall sensor signal is provided, or provide driving signal with special-purpose equipment.Yet, if also adopt which to carry out ageing when batch production, will take considerable resource so, and consume considerable electric weight, greatly increased the production cost of product.
Utility model content
The purpose of this utility model is to provide a kind of ageing device for three phase bridge circuit ageing, while having solved existing three phase bridge circuit ageing, take resource mainly with and the many problems of power consumption.
The technical scheme that the utility model adopts is: for the ageing device of three phase bridge circuit ageing, comprise oscillation circuit unit, oscillation circuit unit connects respectively first signal delay circuit unit and signal circuit for reversing unit, first signal delay circuit unit connects first signal reversion buffer circuit unit, signal circuit for reversing unit connects secondary signal delay circuit unit, and secondary signal delay circuit unit connects secondary signal reversion buffer circuit unit.
Feature of the present utility model is also,
Oscillation circuit unit is Schmidt trigger.
The beneficial effects of the utility model are: the utility model has been simplified the structure of driving circuit for the ageing device of three phase bridge circuit ageing, the demand to equipment while having reduced ageing, has reduced power consumption effectively, and simple in structure, with low cost.
Accompanying drawing explanation
Fig. 1 is that the utility model is for the structural representation of the ageing device of three phase bridge circuit ageing;
Structure connection diagram when Fig. 2 is the utility model use.
In figure, 1. oscillation circuit unit, 2. first signal delay circuit unit, 3. first signal reversion buffer circuit unit, 4. signal circuit for reversing unit, 5. secondary signal delay circuit unit, 6. secondary signal reversion buffer circuit unit, 7. the first three phase bridge circuit unit, 8. the second three phase bridge circuit unit, 9. pull-up resistor.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The utility model provides a kind of ageing device for three phase bridge circuit ageing, as shown in Figure 1, comprise oscillation circuit unit 1, oscillation circuit unit 1 connects respectively first signal delay circuit unit 2 and signal circuit for reversing unit 4, first signal delay circuit unit 2 connects first signal reversion buffer circuit unit 3, signal circuit for reversing unit 4 connects secondary signal delay circuit unit 5, and secondary signal delay circuit unit 5 connects secondary signal reversion buffer circuit unit 6.Oscillation circuit unit 1 is Schmidt trigger.
Before ageing, first need the first signal reversion buffer circuit unit 3 in the utility model to be connected with the first three phase bridge circuit unit 7 and the second three phase bridge circuit unit 8 for the treatment of ageing respectively, the first three phase bridge circuit unit 7 is all connected with pull-up resistor with the second three phase bridge circuit unit 8, then just can start ageing.During ageing, oscillation circuit unit 1 produces the square-wave signal of fixed frequency, square-wave signal is divided into two-way and enters respectively in first signal delay circuit unit 2 and signal circuit for reversing unit 4, first signal delay circuit unit 2 postpones the rising edge that enters the square-wave signal in it, then first signal reversion buffer circuit unit 3 reverses the square-wave signal after postponing again, forms first via signal; Signal circuit for reversing unit 4 reverses the square-wave signal entering in it, then secondary signal delay circuit unit 5 postpones the rising edge of the square-wave signal after reversion, then secondary signal reversion buffer circuit unit 6 reverses the square-wave signal after postponing again, forms the second road signal.The first via signal and the second road signal that form are respectively anti-phase each other, and have Dead Time, occur that straight-through phenomenon appears in the metal-oxide-semiconductor on same brachium pontis while having avoided driving three phase bridge circuit.Two paths of signals drives the first three phase bridge circuit unit 7 and the second three phase bridge circuit unit 8 to carry out ageing.
During the utility model ageing, once can two three phase bridge circuits of ageing, reduced the quantity of pull-up resistor simultaneously, greatly reduced resource occupation, and identical ageing requires the lower electric weight that can save half.
Claims (2)
1. for the ageing device of three phase bridge circuit ageing, it is characterized in that: comprise oscillation circuit unit (1), described oscillation circuit unit (1) connects respectively first signal delay circuit unit (2) and signal circuit for reversing unit (4), described first signal delay circuit unit (2) connects first signal reversion buffer circuit unit (3), described signal circuit for reversing unit (4) connects secondary signal delay circuit unit (5), and described secondary signal delay circuit unit (5) connects secondary signal reversion buffer circuit unit (6).
2. according to claim 1 for the ageing device of three phase bridge circuit ageing, it is characterized in that: described oscillation circuit unit (1) is Schmidt trigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072137.3U CN203759199U (en) | 2014-02-19 | 2014-02-19 | Aging device used for aging of three-phase bridge circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072137.3U CN203759199U (en) | 2014-02-19 | 2014-02-19 | Aging device used for aging of three-phase bridge circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203759199U true CN203759199U (en) | 2014-08-06 |
Family
ID=51254455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420072137.3U Expired - Lifetime CN203759199U (en) | 2014-02-19 | 2014-02-19 | Aging device used for aging of three-phase bridge circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203759199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346705A (en) * | 2019-07-23 | 2019-10-18 | 西安伟京电子制造有限公司 | Ageing device and its ageing method for H-bridge circuit |
-
2014
- 2014-02-19 CN CN201420072137.3U patent/CN203759199U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346705A (en) * | 2019-07-23 | 2019-10-18 | 西安伟京电子制造有限公司 | Ageing device and its ageing method for H-bridge circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |