CN203027175U - Motor drive circuit - Google Patents
Motor drive circuit Download PDFInfo
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- CN203027175U CN203027175U CN201320029347XU CN201320029347U CN203027175U CN 203027175 U CN203027175 U CN 203027175U CN 201320029347X U CN201320029347X U CN 201320029347XU CN 201320029347 U CN201320029347 U CN 201320029347U CN 203027175 U CN203027175 U CN 203027175U
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Abstract
The utility model discloses a motor drive circuit which comprises a control circuit and a drive circuit, wherein the control circuit adopts an MC33035 control chip of OnSemi; a first pin, a second pin, a nineteenth pin, a twenty-first pin and a twenty-fourth pin of the MC33035 control chip are connected with six external ports of the drive circuit respectively; a seventh pin of the MC33035 control chip is earthed; an eighth pin of the MC33035 control chip is connected with a resistor R21 and a capacitor C20 and then connected with the seventh pin; a tenth pin is connected between the resistor R21 and the capacitor C20; and a fourth pin, a fifth pin and a sixth pin of the MC33035 control chip are connected with a hall sensor. The motor drive circuit is typically designed based on an MC33035 brushless direct current motor control drive circuit; external circuits are few; a singlechip is not required to be adopted for motor reversing; a circuit design is simplified; an MCU (micro control unit) operation burden is reduced; a predrive circuit and a voltage pump bootstrap circuit are not required; and the motor drive circuit has the advantages of simple design, convenience in control and the like, and is widely applied.
Description
Technical field
The utility model relates to motor-drive circuit.
Background technology
Traditional Brush-Less DC motor control drive circuit adopts MCU, predrive IC and MOSFET to realize, is boostrap circuit comprising voltage pump.Yet physical circuit design is more complicated, and peripheral circuit is more, and computing all need to pass through MCU, so the MCU computational burden is heavier.
Summary of the invention
For above-mentioned technological deficiency, the utility model proposes motor-drive circuit.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows:
Motor-drive circuit, control circuit and drive circuit, described control circuit adopts the MC33035 control chip of ON company, described MC33035 control chip the 1st, 2,19,20,21 with are connected turning and connect respectively 6 external-connected ports of drive circuit, the 7th turning ground connection of described MC33035 control chip, the 8th turning is connected rear connection the 7th turning by contact resistance R21 with capacitor C, the 10th turning is connected between resistance R 21 and capacitor C 20, described MC33035 control chip the 4th, 5 with are connected turning and connect Hall element.
Further, the current sample of described drive circuit adopts the AD8210 chip, and the output signal turning of described AD8210 chip connects the analog-to-digital conversion turning of single-chip microcomputer.
Further, between the 1st turning of described AD8210 chip and the 8th turning, connecting electronic resistance R 19 is as current sampling resistor, and described resistance R 19 is 3W/47m Ω.
The beneficial effects of the utility model are: the design's circuit is based on the Brush-Less DC motor control drive circuit modular design of MC33035, few with circuit outward, need not to adopt the chip microcontroller motor commutation, not only simplify circuit design, but also alleviated the MCU computational burden, also do not needed predrive circuit and voltage pump boostrap circuit.This circuit has simplicity of design, control the advantage such as convenient and be used widely.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
MC33035 is that the second generation brshless DC motor that ON company releases is controlled application-specific integrated circuit (ASIC), and chief component comprises the rotor-position sensor decoding circuit, with the fault output circuit such as the internal reference power supply of temperature-compensating, saw-toothed oscillator that frequency can be set, error amplifier, pulse-width modulation (PWM) comparator, output driving circuit, under-voltage blockade protection, chip overheating protection and current-limiting circuit etc.The typical case of MC33035 controls function and comprises the control of PWM speed, enables to control (starting or stoping), rotating control, Selecting phasing and braking control etc.
Traditional Brush-Less DC motor control drive circuit adopts MCU, predrive IC and MOSFET to realize, is boostrap circuit comprising voltage pump.The design is based on Brush-Less DC motor control chip MC33035 and realizes, MC33035 realizes predrive and electronics automatic reverse function, adopt MC33035 to realize the control drive circuit of dc brushless motor, both simplified circuit design, wherein based on the driven by Brush-Less DC motor control circuit schematic diagram of MC33035 as shown in Figure 1.Described MC33035 control chip the 1st, 2,19,20,21 with are connected turning and connect respectively 6 external-connected ports of MOSFET drive circuit, the 7th turning ground connection of described MC33035 control chip, the 8th turning is connected rear connection the 7th turning by contact resistance R21 with capacitor C, the 10th turning is connected between resistance R 21 and capacitor C 20, current acquisition chip AD8210 can make the current analog signal of feedback directly input the A/D pin of MCU, wherein R19 is the current sampling resistor of 3W/47m Ω, and R21 and C20 have formed the external clock input circuit of MC33035.Can set the RC oscillator frequency by the value of regulating R21 and C20.The Reternce Output of MC33035 provides the approximately output voltage of 6.2V, can power for Hall element.SA2, SB2, SC2 are the Hall input signal, and inside has connected 20k Ω pull-up resistor, so only need external Hall element to get final product.
The design's circuit is based on the Brush-Less DC motor control drive circuit modular design of MC33035, few with circuit outward, need not to adopt the chip microcontroller motor commutation, both simplified circuit design, the fork alleviated the MCU computational burden, do not need predrive circuit and voltage pump boostrap circuit yet.This circuit has simplicity of design, control the advantage such as convenient and be used widely.
The above is only preferred implementation of the present utility model; should be pointed out that for those skilled in the art, without departing from the concept of the premise utility; can also make some improvements and modifications, these improvements and modifications also should be considered as in the utility model protection range.
Claims (3)
1. motor-drive circuit, it is characterized in that, control circuit and drive circuit, described control circuit adopts the MC33035 control chip of ON company, described MC33035 control chip the 1st, 2,19,20,21 with are connected turning and connect respectively 6 external-connected ports of drive circuit, the 7th turning ground connection of described MC33035 control chip, the 8th turning is connected rear connection the 7th turning by contact resistance R21 with capacitor C, the 10th turning is connected between resistance R 21 and capacitor C 20, described MC33035 control chip the 4th, 5 with are connected turning and connect Hall element.
2. motor-drive circuit according to claim 1, is characterized in that, the current sample of described drive circuit adopts the AD8210 chip, and the output signal turning of described AD8210 chip connects the analog-to-digital conversion turning of single-chip microcomputer.
3. motor-drive circuit according to claim 2, is characterized in that, between the 1st turning of described AD8210 chip and the 8th turning, connecting electronic resistance R 19 is as current sampling resistor, and described resistance R 19 is 3W/47m Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320029347XU CN203027175U (en) | 2013-01-02 | 2013-01-02 | Motor drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320029347XU CN203027175U (en) | 2013-01-02 | 2013-01-02 | Motor drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203027175U true CN203027175U (en) | 2013-06-26 |
Family
ID=48651119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320029347XU Expired - Fee Related CN203027175U (en) | 2013-01-02 | 2013-01-02 | Motor drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203027175U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154916A (en) * | 2016-07-18 | 2016-11-23 | 苏州格联威智能科技有限公司 | A kind of driving controller for going out marking machine and method of work thereof |
| CN107681931A (en) * | 2017-10-17 | 2018-02-09 | 中国电子科技集团公司第四十三研究所 | A kind of brshless DC motor current loop control system and control method |
-
2013
- 2013-01-02 CN CN201320029347XU patent/CN203027175U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154916A (en) * | 2016-07-18 | 2016-11-23 | 苏州格联威智能科技有限公司 | A kind of driving controller for going out marking machine and method of work thereof |
| CN107681931A (en) * | 2017-10-17 | 2018-02-09 | 中国电子科技集团公司第四十三研究所 | A kind of brshless DC motor current loop control system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO QIXIN TECHNOLOGY CO., LTD. Free format text: FORMER NAME: NINGBO QIXIN ELECTRONIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315608 Zhejiang County of Ninghai province Ninghai Huang Tan Industrial Zone (Yangjiacun) Ningbo Qixin Electronics Co. Ltd. Patentee after: NINGBO QIXIN TECHNOLOGY CO., LTD. Address before: 315608 Zhejiang County of Ninghai province Ninghai Huang Tan Industrial Zone (Yangjiacun) Ningbo Qixin Electronics Co. Ltd. Patentee before: Ningbo Qixin Electronic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20180102 |