CN206283437U - High power DC brush motor driver - Google Patents
High power DC brush motor driver Download PDFInfo
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- CN206283437U CN206283437U CN201621399716.4U CN201621399716U CN206283437U CN 206283437 U CN206283437 U CN 206283437U CN 201621399716 U CN201621399716 U CN 201621399716U CN 206283437 U CN206283437 U CN 206283437U
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- motor driver
- voltage
- brush motor
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Abstract
The utility model discloses a kind of high power DC brush motor driver, including half-bridge drive circuit, under-voltage protecting circuit, the first high-frequency interferencing signal attenuator circuit, power amplification circuit, D/C power interface and motor interface.High power DC brush motor driver of the present utility model is controlled using half-bridge drive circuit, under-voltage protecting circuit, the first high-frequency interferencing signal attenuator circuit, power amplification circuit, D/C power interface and motor interface to motor; with simple structure; control efficiency, high reliability, with great application prospect.
Description
Technical field
The utility model belongs to motor control technology field, more particularly to a kind of high power DC brush motor driver.
Background technology
With the development of science and technology, the range of application of motor is more and more wider, current motor is by the main bag of working power classification
Include direct current generator and alternating current generator.Direct current generator has response quickly, larger starting torque, has from zero-turn speed to rated speed
The standby performance that nominal torque can be provided, but because direct current generator will produce the performance of the descending torque of nominal load, armature magnetic
Field permanent must maintain 90 ° with rotor field, and this will can be produced by carbon brush and commutator, carbon brush and commutator when motor is rotated
Therefore in addition to component can be caused to damage, use occasion also receives limitation for spark, carbon dust.Alternating current generator does not have carbon brush and rectification
Son, it is non-maintaining, firm, using wide, to reach must be with complex control technology just equivalent to the performance of direct current generator in single characteristic
Can reach.
In industry, the problem that high power DC brush motor driver is present is essentially consisted in：It is easy when electric motor starting, commutation
Damage driver, and driver load electric current it is big compared with but and not less than the nominal output-current rating of driver damage drive
Dynamic device, the actual output-current rating of driver is small, and control efficiency is low, poor reliability etc..There is the main cause of problem above
It is：If the 1, driver is to realize motor commutation or braking using relay, because the relay opening/closing frequency life-span has very much
Limit, electric arc is produced in folding on contact, and contact resistance causes heating of contact when electric current is larger, if frequently changed
To or braking, relay be easy to damage；2nd, driver realizes full-bridge using semiconductor power device, larger in load current
When, failing to the enough driving voltages of power device or driving current, power device is in half conducting state, on power device
Pressure drop it is big, and cause power device to generate heat serious and damages, such as power device selects metal-oxide-semiconductor, in electric motor starting moment or bears
When carrying larger, drive electric source voltage is supported and drags down, and may cause voltage difference reduction between metal-oxide-semiconductor grid (G), source electrode (S),
So as to metal-oxide-semiconductor is in half conducting state, and metal-oxide-semiconductor is caused to generate heat serious and damage；3rd, when driver is by changing output duty
When comparing electric machine speed regulation, because motor coil is inductive load, motor coil will produce inverse electromotive force, will if treatment is bad
Drive power supply may be made to produce instant high-voltage and damage drive circuit；4th, sensing can be produced when permanent magnet DC motor is rotated
Electromotive force, to motor braking after motor is rotated, if braked using PWM chopping ways, this makes copped wave booster circuit is constituted
Drive electric source voltage is raised and may damage drive circuit.
Utility model content
Goal of the invention of the present utility model is：In order to solve problem above present in prior art, the utility model is carried
A kind of high power DC brush motor driver is gone out.
The technical solution of the utility model is：A kind of high power DC brush motor driver, including half-bridge drive circuit,
Under-voltage protecting circuit, the first high-frequency interferencing signal attenuator circuit, power amplification circuit, D/C power interface and motor interface；It is described
Under-voltage protecting circuit is connected input with input signal interface and enables signal by the second high-frequency interferencing signal attenuator circuit, also with institute
State the connection of the first high-frequency interferencing signal attenuator circuit；The first high-frequency interferencing signal attenuator circuit is believed by the second High-frequency Interference
Number attenuator circuit is connected input rotating control signal with input signal interface, is also driven with the half-bridge by logic control circuit
Dynamic circuit connection；The D/C power interface is connected by filtering with surge voltage-suppressing circuit with the power amplification circuit；Institute
State surge voltage-suppressing circuit pass sequentially through 5V lowering and stabilizing blood pressures module, high-frequency interferencing signal decay with transient voltage suppression circuit to
The under-voltage protecting circuit is powered；The 5V lowering and stabilizing blood pressures module is respectively to logic control circuit and half-bridge upper arm continued power electricity
Road powers, and is also powered to the half-bridge drive circuit and half-bridge upper arm continued power circuit respectively by 12V booster circuits；It is described
Half-bridge drive circuit is connected by power amplification circuit with the motor interface.
Further, the 5V lowering and stabilizing blood pressures module uses LM2575-5.0 switching power source chips.
Further, the 12V booster circuits use ICL7660 charge pumps IC.
Further, the half-bridge drive circuit uses IR2103 half-bridge driven chips.
Further, the logic control circuit uses 74HC08 gate circuits IC.
Further, the under-voltage protecting circuit uses MAX809 voltage monitoring resets IC.
Further, the second high-frequency interferencing signal attenuator circuit includes PESD5V0U2BT ESD devices and capacitor
Part.
The beneficial effects of the utility model are：High power DC brush motor driver of the present utility model is driven using half-bridge
Dynamic circuit, under-voltage protecting circuit, the first high-frequency interferencing signal attenuator circuit, power amplification circuit, D/C power interface and motor connect
Mouth is controlled to motor, with simple structure, control efficiency, high reliability, with great application prospect.
Brief description of the drawings
Fig. 1 is high power DC brush motor activation configuration schematic diagram of the present utility model.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain this
Utility model, is not used to limit the utility model.
As shown in figure 1, being high power DC brush motor activation configuration schematic diagram of the present utility model.It is a kind of high-power
Brush direct current motor driver, including half-bridge drive circuit, under-voltage protecting circuit, the first high-frequency interferencing signal attenuator circuit, work(
Rate amplifying circuit, D/C power interface and motor interface.
Under-voltage protecting circuit of the present utility model is connected by the second high-frequency interferencing signal attenuator circuit with input signal interface
Connect input and enable signal, be also connected with the first high-frequency interferencing signal attenuator circuit；The first high-frequency interferencing signal decay
Circuit is connected input rotating control signal with input signal interface by the second high-frequency interferencing signal attenuator circuit, also by patrolling
Control circuit is collected to be connected with the half-bridge drive circuit.Here under-voltage protecting circuit realizes having using voltage monitoring reset IC
Body such as MAX809 etc.；Here the first high-frequency interferencing signal attenuator circuit carries out circuit filtering using rc low pass filter；
Here the second high-frequency interferencing signal attenuator circuit carries out high voltage transient voltage suppression using ESD protective device, and ESD device is such as
PESD5V0U2BT, is filtered using small capacitances；Here logic control circuit uses gate circuit IC, is realized with, non-, OR gate, specifically
Such as 74HC08 etc..The utility model realizes under-voltage protection function using under-voltage protecting circuit, output is turned off when under-voltage, so as to keep away
Exempting to occur power source supplying voltage deficiency causes logic control circuit and half-bridge drive circuit to work abnormal problem.
D/C power interface of the present utility model is connected by filtering and surge voltage-suppressing circuit with the power amplification circuit
Connect.
Filtering of the present utility model passes sequentially through 5V lowering and stabilizing blood pressures module, high-frequency interferencing signal with surge voltage-suppressing circuit
Decay is powered with transient voltage suppression circuit to the under-voltage protecting circuit；Here filtering is used with surge voltage-suppressing circuit
Electric capacity is filtered, and Surge suppression is carried out using TVS diode；Here high-frequency interferencing signal decay suppresses electricity with transient voltage
Road carries out high-frequency interferencing signal suppression using magnetic bead, and transient voltage suppression is carried out using TVS；Here under-voltage protecting circuit is used
Voltage monitoring reset IC realizes, specific such as MAX809 etc..
5V lowering and stabilizing blood pressures module of the present utility model is supplied to logic control circuit and half-bridge upper arm continued power circuit respectively
Electricity, is also powered to the half-bridge drive circuit and half-bridge upper arm continued power circuit respectively by 12V booster circuits.Here 5V
Lowering and stabilizing blood pressure module is depressured using switching power source chip, specifically such as LM2575-5.0 etc.；Here 12V booster circuits are adopted
Boosted with charge pump IC multiplication of voltages, specifically such as ICL7660 etc.；Here half-bridge upper arm continued power circuit uses charge pump
IC boostings obtain the voltage higher than D/C power interface voltage, and amplitude limit is carried out to voltage using resistance and voltage-regulator diode, use electricity
Hold storage electric charge.The utility model uses half-bridge upper arm continued power circuit realiration half-bridge upper arm continued power, usual half-bridge IC
Upper arm is powered by bootstrap approach, when appearance is accounted for than close to or up 100%, it is impossible to for half-bridge upper arm is powered, so that nothing
Method realizes that 100% dutycycle is exported, and half-bridge upper arm continued power circuit of the present utility model can make accounting for for half-bridge output 100%
Sky ratio.
Half-bridge drive circuit of the present utility model is connected by power amplification circuit with the motor interface.Here half-bridge
Drive circuit realized using half-bridge driven chip, specifically such as IR2103, IR2184 etc.；Company in the present embodiment between each circuit
The conventional connected mode of those skilled in the art is connected in, the utility model is not repeated.The utility model is driven using special half-bridge
Dynamic IC, efficiently reliable, MOS is using full N-type, and especially powerful N-type MOS type selectings more preferable than p-type on the market, so that driving
Dynamic device power does more.
High power DC brush motor driver of the present utility model is using half-bridge drive circuit, under-voltage protecting circuit, the
One high-frequency interferencing signal attenuator circuit, power amplification circuit, D/C power interface and motor interface are controlled to motor, with knot
Structure is simple, control efficiency, high reliability, with great application prospect.
One of ordinary skill in the art will be appreciated that embodiment described here is to aid in reader and understands this reality
With new principle, it should be understood that protection domain of the present utility model is not limited to such especially statement and embodiment.
One of ordinary skill in the art can these technical inspirations according to disclosed in the utility model make and various do not depart from this practicality
New substantive other various specific deformations and combination, these deformations and combination are still in protection domain of the present utility model.
Claims (7)
1. a kind of high power DC brush motor driver, it is characterised in that including half-bridge drive circuit, under-voltage protecting circuit,
First high-frequency interferencing signal attenuator circuit, power amplification circuit, D/C power interface and motor interface；The under-voltage protecting circuit leads to
Cross the second high-frequency interferencing signal attenuator circuit and input enable signal is connected with input signal interface, also with first High-frequency Interference
Signal attenuation circuit is connected；The first high-frequency interferencing signal attenuator circuit by the second high-frequency interferencing signal attenuator circuit with it is defeated
Enter signaling interface connection input rotating control signal, be also connected with the half-bridge drive circuit by logic control circuit；Institute
D/C power interface is stated to be connected with surge voltage-suppressing circuit with the power amplification circuit by filtering；The surge voltage suppresses
Circuit passes sequentially through 5V lowering and stabilizing blood pressures module, high-frequency interferencing signal decay with transient voltage suppression circuit to under-voltage protection electricity
Road powers；The 5V lowering and stabilizing blood pressures module is powered to logic control circuit and half-bridge upper arm continued power circuit respectively, is also passed through
12V booster circuits are powered to the half-bridge drive circuit and half-bridge upper arm continued power circuit respectively；The half-bridge drive circuit
It is connected with the motor interface by power amplification circuit.
2. high power DC brush motor driver as claimed in claim 1, it is characterised in that the 5V lowering and stabilizing blood pressures module
Using LM2575-5.0 switching power source chips.
3. high power DC brush motor driver as claimed in claim 2, it is characterised in that the 12V booster circuits are adopted
With ICL7660 charge pumps IC.
4. high power DC brush motor driver as claimed in claim 3, it is characterised in that the half-bridge drive circuit is adopted
Use IR2103 half-bridge driven chips.
5. high power DC brush motor driver as claimed in claim 4, it is characterised in that the logic control circuit is adopted
With 74HC08 gate circuits IC.
6. high power DC brush motor driver as claimed in claim 5, it is characterised in that the under-voltage protecting circuit is adopted
With MAX809 voltage monitoring resets IC.
7. high power DC brush motor driver as claimed in claim 6, it is characterised in that the second High-frequency Interference letter
Number attenuator circuit includes PESD5V0U2BT ESD devices and capacitor element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621399716.4U CN206283437U (en) | 2016-12-20 | 2016-12-20 | High power DC brush motor driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621399716.4U CN206283437U (en) | 2016-12-20 | 2016-12-20 | High power DC brush motor driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206283437U true CN206283437U (en) | 2017-06-27 |
Family
ID=59073917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621399716.4U Active CN206283437U (en) | 2016-12-20 | 2016-12-20 | High power DC brush motor driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206283437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023272843A1 (en) * | 2021-07-01 | 2023-01-05 | 江门市锦隆高科实业有限公司 | Current detection circuit and garbage can |
| US11973450B2 (en) | 2021-04-13 | 2024-04-30 | Jiangmen Jinlong High Technology Industrial Co., Ltd. | Current detection circuit and garbage can |
-
2016
- 2016-12-20 CN CN201621399716.4U patent/CN206283437U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11973450B2 (en) | 2021-04-13 | 2024-04-30 | Jiangmen Jinlong High Technology Industrial Co., Ltd. | Current detection circuit and garbage can |
| WO2023272843A1 (en) * | 2021-07-01 | 2023-01-05 | 江门市锦隆高科实业有限公司 | Current detection circuit and garbage can |
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