CN202513862U - Motor controlling and driving circuit - Google Patents
Motor controlling and driving circuit Download PDFInfo
- Publication number
- CN202513862U CN202513862U CN2012201178915U CN201220117891U CN202513862U CN 202513862 U CN202513862 U CN 202513862U CN 2012201178915 U CN2012201178915 U CN 2012201178915U CN 201220117891 U CN201220117891 U CN 201220117891U CN 202513862 U CN202513862 U CN 202513862U
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- Prior art keywords
- bridge circuit
- motor
- circuit
- microprocessor
- upper bridge
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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 - Fee Related
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Abstract
The utility model relates to a motor controlling and driving circuit, which comprises a microprocessor, an upper bridge circuit, a lower bridge circuit and a motor, wherein a first pulse-width modulation (PWM) signal end of the microprocessor is electrically connected with the upper bridge circuit; a second PWM signal end of the microprocessor is electrically connected with the lower bridge circuit; and the upper bridge circuit and the lower bridge circuit are both electrically connected with the motor. According to the motor driving mode of the motor controlling and driving circuit, the upper bridge circuit and the lower bridge circuit are driven by a pulse width modulation mode to work, so that current switching borne by the metal oxide semiconductor (MOS) tubes of the upper bridge circuit and the lower bridge circuit becomes even, the service life of the MOS tube is prolonged, the driven maximum current is increased, and correspondingly, the driving capability of the motor controlling and driving circuit is improved. In addition, the power supply of the upper bridge circuit adopts an active boosting mode, and electronic components are saved.
Description
Technical field
The utility model relates to the motor-driven technology of electric motor car, is specifically related to a kind of Electric Machine Control drive circuit.
Background technology
The electric motor car industry has obtained development at a high speed during several years of Chinese market.Electric motor car on the existing market adopts brshless DC motor, and functions such as electric current, voltage protection, runaway, instrument, brake, E-ABS, speed governing, antitheft, phase shortage selfreparing, speed limit are arranged on function.The prior motor type of drive adopts and replaces commutation according to three-phase dc, and speed control adopts different PWM (pulse width modulation) duties recently to realize.The type of drive of motor adopts and goes up bridge PWM driving, the permanent conducting (only when commutation, switching) of following bridge, and this type of drive makes the current switching that metal-oxide-semiconductor bore of upper and lower bridge inhomogeneous, and metal-oxide-semiconductor is damaged easily, has limited the maximum drive current of drive circuit.
The utility model content
In order to overcome the deficiency of prior art, the purpose of the utility model is to propose a kind of long service life, Electric Machine Control drive circuit that drive current is big.
In order to achieve the above object, the technical scheme that the utility model adopted is following:
A kind of Electric Machine Control drive circuit; It comprises microprocessor, last bridge circuit, following bridge circuit, motor; First pwm signal end of microprocessor and last bridge circuit electrically connect; The second pwm signal end of microprocessor electrically connects with following bridge circuit, and last bridge circuit, following bridge circuit all electrically connect with motor.
As preferred construction, the Electric Machine Control drive circuit is 6 tube drive circuits or 12 tube drive circuits or 18 tube drive circuits or 24 tube drive circuits.So analogize, promptly the pipe number of Electric Machine Control drive circuit is 6 multiple.
The utlity model has following beneficial effect:
Motor drive mode adopts pulse width modulation to drive and goes up bridge circuit and bridge circuit work down; The metal-oxide-semiconductor that makes bridge circuit reach following bridge circuit bears current switching and becomes even; Prolong the life-span of metal-oxide-semiconductor; Improved the maximum current that drives, the corresponding driving force that improves the Electric Machine Control drive circuit.
Description of drawings
Fig. 1 is the structural representation of the Electric Machine Control drive circuit of the utility model preferred embodiment;
Fig. 2 is the schematic diagram of the Electric Machine Control drive circuit of the utility model preferred embodiment.
Embodiment
Below, in conjunction with accompanying drawing and embodiment, the utility model done further describing, so that clearerly understand the utility model technological thought required for protection.
As shown in Figure 1, a kind of Electric Machine Control drive circuit, it comprises microprocessor, last bridge circuit, following bridge circuit, motor.
First pwm signal end of microprocessor and last bridge circuit electrically connect, and the second pwm signal end of microprocessor electrically connects with following bridge circuit, and last bridge circuit, following bridge circuit all electrically connect with motor.
The Electric Machine Control drive circuit of present embodiment is 6 tube drive circuits, and said here 6 tube drive circuits that is to say that the quantity of the metal-oxide-semiconductor in the motor-drive circuit is 6.
As shown in Figure 2, the principle of present embodiment is following:
The first pwm signal end and the second pwm signal end of microprocessor produce first pwm signal, second pwm signal respectively; First pwm signal, second pwm signal drive bridge circuit, bridge circuit work down respectively, thereby make bridge circuit, bridge circuit drive motors work down.Wherein, the power supply of last bridge circuit adopts power Vcc initiatively to boost to than the high 15V power supply of power Vcc, and following bridge circuit adopts the 15V power supply.
The motor drive mode of present embodiment adopts pulse width modulation to drive and goes up bridge circuit and bridge circuit work down; The metal-oxide-semiconductor that makes bridge circuit reach following bridge circuit bears current switching and becomes even; Prolong the life-span of metal-oxide-semiconductor; Improved the maximum current that drives, the corresponding driving force that improves the Electric Machine Control drive circuit.And the power supply of last bridge circuit adopts the mode of initiatively boosting, and has practiced thrift electronic devices and components.
In addition, above-mentioned Electric Machine Control drive circuit can also adopt 12 tube drive circuits or 18 tube drive circuits or 24 tube drive circuits.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection range of the utility model claim all according to the technical scheme and the design of above description.
Claims (2)
1. Electric Machine Control drive circuit; Comprise microprocessor, last bridge circuit, following bridge circuit, motor; It is characterized in that; First pwm signal end of microprocessor and last bridge circuit electrically connect, and the second pwm signal end of microprocessor electrically connects with following bridge circuit, and last bridge circuit, following bridge circuit all electrically connect with motor.
2. Electric Machine Control drive circuit as claimed in claim 1 is characterized in that, the Electric Machine Control drive circuit is 6 tube drive circuits or 12 tube drive circuits or 18 tube drive circuits or 24 tube drive circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201178915U CN202513862U (en) | 2012-03-26 | 2012-03-26 | Motor controlling and driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201178915U CN202513862U (en) | 2012-03-26 | 2012-03-26 | Motor controlling and driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202513862U true CN202513862U (en) | 2012-10-31 |
Family
ID=47066317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201178915U Expired - Fee Related CN202513862U (en) | 2012-03-26 | 2012-03-26 | Motor controlling and driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202513862U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898474A (en) * | 2015-04-01 | 2015-09-09 | 华南理工大学 | MCU-based multichannel uniform servo pulse generation method |
-
2012
- 2012-03-26 CN CN2012201178915U patent/CN202513862U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898474A (en) * | 2015-04-01 | 2015-09-09 | 华南理工大学 | MCU-based multichannel uniform servo pulse generation method |
| CN104898474B (en) * | 2015-04-01 | 2017-12-01 | 华南理工大学 | A kind of Multichannel uniform servo pulse generation method based on MCU |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN GAUSSTOP TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: YANG ZHIJUN Effective date: 20141029 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141029 Address after: Longxi Longcheng Street Community Wulian road in Longgang District of Shenzhen City, Guangdong province 518000 No. 21 Eagle Industrial Zone C District 2 Building 3 floor Patentee after: SHENZHEN GAOSI TUOPU SCIENCE & TECHNOLOGY CO., LTD. Address before: 518000 Guangdong city of Shenzhen province Futian District Fumin road wongtee color Park 1 8B Patentee before: Yang Zhijun |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20150326 |
|
| EXPY | Termination of patent right or utility model |