CN203632580U - Direct-current motor driving module - Google Patents
Direct-current motor driving module Download PDFInfo
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- CN203632580U CN203632580U CN201320463078.8U CN201320463078U CN203632580U CN 203632580 U CN203632580 U CN 203632580U CN 201320463078 U CN201320463078 U CN 201320463078U CN 203632580 U CN203632580 U CN 203632580U
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- effect transistor
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- source electrode
- bridge circuit
- motor
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Abstract
The utility model discloses a direct-current motor driving module, which comprises a single chip microcomputer and an H-bridge circuit. The single chip microcomputer is connected onto the H-bridge circuit via an amplifier chip; and the output of the H-bridge circuit is connected with a motor. The direct-current motor driving module has the beneficial effects that the amplifier chip and the H-bridge circuit are connected in series to serve as the driving circuit of the motor, the driving motor can provide high driving current, the control force is stronger, and forward and backward rotation of the motor can be timely and accurately controlled.
Description
Technical field
The utility model relates to motor and drives field, specially refers to a kind of direct current machine driver module.
Background technology
Direct current energy is converted to the motor of mechanical energy.Because its good speed adjusting performance is used widely in Electric Traction.
Existing motor drive module has one or more MC33886 chip parallel connection of employing as motor drive module, and its shortcoming is the selling at exorbitant prices of MC33886, if thereby and multi-disc MC33886 parallel connection easily cause the uneven chip that burns of monolithic heating; Also have the Control of employing motor, shortcoming is that the response time of relay is slow, and fragile, the life-span is shorter, and reliability is not high.
Utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, and direct current machine driver module is provided, and solves in existing motor drive module, the shortcoming of high cost while adopting polylith MC33886 chip in parallel; And adopt when relay the life-span short, the defect that unfailing performance is low.
The purpose of this utility model is achieved through the following technical solutions: direct current machine driver module, comprise single-chip microcomputer and H bridge circuit, and the amplification chip that passes through of described single-chip microcomputer is connected to H bridge circuit, and the output of described H bridge circuit is connected to motor.This device adopts H bridge as motor drive module.It is the method that everybody generally adopts that H bridge drives, and it is strong that it has driving force, and governor control characteristics is good, adjustment is level and smooth, speed adjustable range is wide, overload capacity is large, can bear load shock frequently, can also realize frequently start fast, the advantage such as braking and reversion.The output voltage of single-chip microcomputer is only 5V, and to make field effect transistor conducting in H bridge need the voltage of minimum 7.2V, so this device arranges an amplification chip, this drive circuit is exported PWM ripple to chip MC33886 by single-chip microcomputer, via the voltage amplification effect of chip MC33886, by making the conducting of H bridge circuit in the PWM ripple input H bridge circuit after amplifying, control the running of motor.In this Circuit theory, can make the electric current maximum of output reach 74A, be enhanced compared with the drive circuit that 24A to 36A maximum current can only be provided in the past.Measured result shows, this drive circuit can provide higher drive current, and control is stronger, can control in time, accurately rotating and the rotating speed of motor.
Further, above-mentioned H bridge circuit comprises two inputs and two outputs, two inputs of H bridge circuit connect respectively two outputs of amplification chip, two outputs of H bridge circuit connect respectively two inputs of motor, H bridge circuit comprises field effect transistor Q1, field effect transistor Q2, field effect transistor Q3 and field effect transistor Q4, described field effect transistor Q1, field effect transistor Q2 is P type field effect transistor, field effect transistor Q3 and field effect transistor Q4 are N-type field effect transistor, the drain electrode of field effect transistor Q1 and field effect transistor Q2 is all connected to power supply, the source electrode of field effect transistor Q1 is connected to the drain electrode of field effect transistor Q3, the source electrode of field effect transistor Q2 is connected to the drain electrode of field effect transistor Q4, all ground connection of the source electrode of field effect transistor Q3 and field effect transistor Q4, field effect transistor Q1, the grid of field effect transistor Q3 is connected in one of them output of amplification chip together, field effect transistor Q2, the grid of field effect transistor Q4 is connected in another output of amplification chip together, two inputs of motor are connected respectively to the source electrode of field effect transistor Q1 and the source electrode of field effect transistor Q2.When the grid of field effect transistor Q1, Q3 connects low level, the grid of field effect transistor Q2, Q4 connects high level, and one of motor is input as high level, and another is input as low level, is forward if establish present motor; Now the grid of field effect transistor Q1, Q3 is connect to high level, the grid of field effect transistor Q2, Q4 connects low level, and at this time just reversion of motor, has realized the control of motor positive and inverse.
Further, between the grid of above-mentioned field effect transistor Q3 and source electrode, be connected with a protective resistance R1, between the grid of field effect transistor Q4 and source electrode, be connected with a protective resistance R2.Protection field effect transistor Q3 and Q4.
Further, between the drain electrode of above-mentioned field effect transistor Q1 and source electrode, be all connected with a direction diode D1, between the drain electrode of field effect transistor Q2 and source electrode, be all connected with a reverse diode D2, between the drain electrode of field effect transistor Q3 and source electrode, be all connected with a reverse diode D3, between the drain electrode of field effect transistor Q4 and source electrode, be all connected with a reverse diode D4, diode D1, D2, D3, the direction of D4 and current opposite in direction, as the positive pole of diode D1 connects the source electrode of field effect transistor Q1, negative pole connects field effect transistor Q1 drain electrode, so, prevented sense of current impact, protect field effect transistor.
Further, above-mentioned amplification chip adopts the chip that model is MC33886.
The beneficial effects of the utility model are: adopt amplification chip to connect as the drive circuit of motor with H bridge circuit, this drive circuit can provide higher drive current, and control is stronger, can control in time, accurately the rotating of motor.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of embodiment.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but structure of the present utility model is not limited only to following examples:
[embodiment]
As shown in Figure 1, direct current machine driver module, comprises single-chip microcomputer and H bridge circuit, and the amplification chip that passes through of described single-chip microcomputer is connected to H bridge circuit, and the output of described H bridge circuit is connected to motor.This device adopts H bridge as motor drive module.It is the method that everybody generally adopts that H bridge drives, and it is strong that it has driving force, and governor control characteristics is good, adjustment is level and smooth, speed adjustable range is wide, overload capacity is large, can bear load shock frequently, can also realize frequently start fast, the advantage such as braking and reversion.The output voltage of single-chip microcomputer is only 5V, and to make field effect transistor conducting in H bridge need the voltage of minimum 7.2V, so this device arranges an amplification chip, this drive circuit is exported PWM ripple to chip MC33886 by single-chip microcomputer, via the voltage amplification effect of chip MC33886, by making the conducting of H bridge circuit in the PWM ripple input H bridge circuit after amplifying, control the running of motor.In this Circuit theory, can make the electric current maximum of output reach 74A, be enhanced compared with the drive circuit that 24A to 36A maximum current can only be provided in the past.Measured result shows, this drive circuit can provide higher drive current, and control is stronger, can control in time, accurately rotating and the rotating speed of motor.
In the present embodiment, H bridge circuit comprises two inputs and two outputs, two inputs of H bridge circuit connect respectively two outputs of amplification chip, two outputs of H bridge circuit connect respectively two inputs of motor, H bridge circuit comprises field effect transistor Q1, field effect transistor Q2, field effect transistor Q3 and field effect transistor Q4, described field effect transistor Q1, field effect transistor Q2 is P type field effect transistor, field effect transistor Q3 and field effect transistor Q4 are N-type field effect transistor, the drain electrode of field effect transistor Q1 and field effect transistor Q2 is all connected to power supply, the source electrode of field effect transistor Q1 is connected to the drain electrode of field effect transistor Q3, the source electrode of field effect transistor Q2 is connected to the drain electrode of field effect transistor Q4, all ground connection of the source electrode of field effect transistor Q3 and field effect transistor Q4, field effect transistor Q1, the grid of field effect transistor Q3 is connected in one of them output of amplification chip together, field effect transistor Q2, the grid of field effect transistor Q4 is connected in another output of amplification chip together, two inputs of motor are connected respectively to the source electrode of field effect transistor Q1 and the source electrode of field effect transistor Q2.When the grid of field effect transistor Q1, Q3 connects low level, the grid of field effect transistor Q2, Q4 connects high level, and one of motor is input as high level, and another is input as low level, is forward if establish present motor; Now the grid of field effect transistor Q1, Q3 is connect to high level, the grid of field effect transistor Q2, Q4 connects low level, and at this time just reversion of motor, has realized the control of motor positive and inverse.
In the present embodiment, between the grid of field effect transistor Q3 and source electrode, be connected with a protective resistance R1, between the grid of field effect transistor Q4 and source electrode, be connected with a protective resistance R2.Protection field effect transistor Q3 and Q4.
In the present embodiment, between the drain electrode of field effect transistor Q1 and source electrode, be all connected with a direction diode D1, between the drain electrode of field effect transistor Q2 and source electrode, be all connected with a reverse diode D2, between the drain electrode of field effect transistor Q3 and source electrode, be all connected with a reverse diode D3, between the drain electrode of field effect transistor Q4 and source electrode, be all connected with a reverse diode D4, diode D1, D2, D3, the direction of D4 and current opposite in direction, as the positive pole of diode D1 connects the source electrode of field effect transistor Q1, negative pole connects field effect transistor Q1 drain electrode, so, prevented sense of current impact, protect field effect transistor.
Amplification chip in the present embodiment adopts the chip that model is MC33886, and single-chip microcomputer adopts C51 single-chip microcomputer.
Claims (4)
1. direct current machine driver module, it is characterized in that, comprise single-chip microcomputer and H bridge circuit, the amplification chip that passes through of described single-chip microcomputer is connected to H bridge circuit, the output of described H bridge circuit is connected to motor, described H bridge circuit comprises two inputs and two outputs, two inputs of H bridge circuit connect respectively two outputs of amplification chip, two outputs of H bridge circuit connect respectively two inputs of motor, H bridge circuit comprises field effect transistor Q1, field effect transistor Q2, field effect transistor Q3 and field effect transistor Q4, described field effect transistor Q1, field effect transistor Q2 is P type field effect transistor, field effect transistor Q3 and field effect transistor Q4 are N-type field effect transistor, the drain electrode of field effect transistor Q1 and field effect transistor Q2 is all connected to power supply, the source electrode of field effect transistor Q1 is connected to the drain electrode of field effect transistor Q3, the source electrode of field effect transistor Q2 is connected to the drain electrode of field effect transistor Q4, all ground connection of the source electrode of field effect transistor Q3 and field effect transistor Q4, field effect transistor Q1, the grid of field effect transistor Q3 is connected in one of them output of amplification chip together, field effect transistor Q2, the grid of field effect transistor Q4 is connected in another output of amplification chip together, two inputs of motor are connected respectively to the source electrode of field effect transistor Q1 and the source electrode of field effect transistor Q2.
2. direct current machine driver module according to claim 1, is characterized in that, is connected with a protective resistance R1 between the grid of described field effect transistor Q3 and source electrode, is connected with a protective resistance R2 between the grid of field effect transistor Q4 and source electrode.
3. direct current machine driver module according to claim 1, it is characterized in that, between the drain electrode of described field effect transistor Q1 and source electrode, be all connected with a direction diode D1, between the drain electrode of field effect transistor Q2 and source electrode, be all connected with a reverse diode D2, between the drain electrode of field effect transistor Q3 and source electrode, be all connected with a reverse diode D3, between the drain electrode of field effect transistor Q4 and source electrode, be all connected with a reverse diode D4.
4. direct current machine driver module according to claim 1, is characterized in that, described amplification chip adopts the chip that model is MC33886.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463078.8U CN203632580U (en) | 2013-07-31 | 2013-07-31 | Direct-current motor driving module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463078.8U CN203632580U (en) | 2013-07-31 | 2013-07-31 | Direct-current motor driving module |
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| Publication Number | Publication Date |
|---|---|
| CN203632580U true CN203632580U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320463078.8U Expired - Fee Related CN203632580U (en) | 2013-07-31 | 2013-07-31 | Direct-current motor driving module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107067508A (en) * | 2017-03-14 | 2017-08-18 | 深圳康佳信息网络有限公司 | A kind of intelligent electronic lock based on GSM |
-
2013
- 2013-07-31 CN CN201320463078.8U patent/CN203632580U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107067508A (en) * | 2017-03-14 | 2017-08-18 | 深圳康佳信息网络有限公司 | A kind of intelligent electronic lock based on GSM |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140604 Termination date: 20210731 |