CN113098332A - Single-power-supply brushless servo motor driving circuit - Google Patents
Single-power-supply brushless servo motor driving circuit Download PDFInfo
- Publication number
- CN113098332A CN113098332A CN202110353553.5A CN202110353553A CN113098332A CN 113098332 A CN113098332 A CN 113098332A CN 202110353553 A CN202110353553 A CN 202110353553A CN 113098332 A CN113098332 A CN 113098332A
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- circuit
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- motor driver
- signal
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 230000003287 optical effect Effects 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 18
- 229910052715 tantalum Inorganic materials 0.000 claims description 18
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 18
- 230000001629 suppression Effects 0.000 claims description 9
- 230000001052 transient effect Effects 0.000 claims description 9
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P4/00—Arrangements specially adapted for regulating or controlling the speed or torque of electric motors that can be connected to two or more different electric power supplies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
- H02M1/092—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices the control signals being transmitted optically
Abstract
The invention discloses a single-power-supply brushless servo motor driving circuit which comprises a power supply + VH, a voltage stabilizing circuit and a motor driver IC1, wherein the power supply + VH provides working voltage for a motor driver IC1 through the voltage stabilizing circuit, and the motor driver IC1 internally comprises a power supply conversion circuit, an optical coupling isolation circuit, a logic circuit, a driving circuit, a power output circuit and a current limiting protection circuit. The single-power-supply brushless servo motor driving circuit is characterized in that a power supply conversion circuit is designed in a dual-power-supply brushless servo motor driver, so that the purposes of single-power-supply and wide working voltage range are achieved; the overall design thought of the driving circuit is simplified, and the design cost is reduced; an integrated design idea is adopted, and the volume of the product is reduced; the power device has high derating redundancy and better current limiting capability, and improves the reliability of products; the internal circuit has the measures of hardware filtering, isolation and the like, and has strong anti-jamming capability.
Description
Technical Field
The invention relates to the technical field of integrated servo drive, in particular to a single-power-supply brushless servo motor drive circuit.
Background
The existing drive design of the brushless servo motor comprises two parts: power conversion circuit IC1, dual power supply brushless servo motor driver IC 2. The power conversion circuit IC1 needs to convert the working power needed by the IC2 and the Hall power needed by the brushless servo motor, and the specific design block diagram is shown in FIG. 3. The driving design has the defects of more devices, high cost, large volume and low reliability.
Disclosure of Invention
The invention aims to overcome the existing defects and provides a single-power supply brushless servo motor driving circuit, which integrates a power conversion circuit into a double-power supply brushless servo motor driver by adopting an integration thought, simplifies the overall design thought of the driving circuit, has the advantages of reducing the design cost, reducing the product volume, improving the product reliability and the like, and can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a single power supply's brushless servo motor drive circuit, including power supply + VH, voltage stabilization circuit and a motor driver IC1, wherein, power supply + VH passes through voltage stabilization circuit and provides operating voltage for motor driver IC1, motor driver IC1 is inside to include power conversion circuit, opto-coupler isolation circuit, logic circuit, drive circuit, power output circuit and current-limiting protection circuit, motor driver IC1 and outside control circuit and brushless DC motor M electric connection, motor driver IC1 controls brushless DC motor M through control circuit.
As a preferred technical solution of the present invention, the power conversion circuit in the motor driver IC1 converts the input power + VH to be used by the internal circuit of the motor driver IC1 and the motor hall, the optical coupling isolation circuit isolates and amplifies the PWM signal and the F/R signal and outputs the signals to the logic circuit, the logic circuit can output the processed signals to the driving circuit after performing comprehensive processing on the hall signal, the current limiting protection signal, the PWM control signal and the direction signal of the brushless dc motor, the driving circuit outputs the received signals to the power output circuit formed by MOS transistors to realize power output and drive the brushless dc motor M to rotate, and the current limiting protection circuit samples and monitors the current of the power output circuit and outputs the corresponding signals to the logic circuit.
As a preferred technical solution of the present invention, the motor driver IC1 has thirteen pins, a first pin is an input signal ground, a second pin is a PWM signal control terminal, a third pin is an F/R signal control terminal, a fourth pin is a hall power supply, a fifth pin is a hall signal SA, a sixth pin is a hall signal SB, a seventh pin is a hall signal SC, an eighth pin is a hall power supply ground, a ninth pin is an output terminal U, a tenth pin is an output terminal V, an eleventh pin is an output terminal W, a twelfth pin is a power supply ground, and a thirteenth pin is a power supply.
As a preferred embodiment of the present invention, the voltage stabilizing circuit includes a tantalum electrolytic capacitor C1, a tantalum electrolytic capacitor C2, and a transient suppression diode V1.
As a preferred embodiment of the present invention, the cathode of the transient suppression diode V1 is connected to the thirteenth pin of the motor driver IC1, the anode of the transient suppression diode V1 is connected to the twelfth pin of the motor driver IC1, the anode of the tantalum electrolytic capacitor C1 is connected to the thirteenth pin of the motor driver IC1, the cathode of the tantalum electrolytic capacitor C1 is connected to the anode of the tantalum electrolytic capacitor C2, and the cathode of the tantalum electrolytic capacitor C2 is connected to the twelfth pin of the motor driver IC 1.
Compared with the prior art, the invention has the beneficial effects that: according to the brushless servo motor driving circuit powered by the single power supply, the power supply conversion circuit is designed in the brushless servo motor driver powered by the double power supplies, so that the purposes of single power supply and wide working voltage range are achieved; the overall design thought of the driving circuit is simplified, and the design cost is reduced; an integrated design idea is adopted, and the volume of the product is reduced; the power device has high derating redundancy and better current limiting capability, and improves the reliability of products; the internal circuit has the measures of hardware filtering, isolation and the like, and has strong anti-jamming capability.
Drawings
FIG. 1 is a schematic diagram of the circuit design of the present invention;
FIG. 2 is a block diagram of the internal components of the present invention;
fig. 3 is a schematic diagram of a conventional circuit design.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a single power supply's brushless servo motor drive circuit, including power supply + VH, voltage stabilization circuit and a motor driver IC1, wherein, power supply + VH passes through voltage stabilization circuit and provides operating voltage for motor driver IC1, motor driver IC1 is inside to include power conversion circuit, opto-coupler isolation circuit, logic circuit, drive circuit, power output circuit and current-limiting protection circuit, motor driver IC1 and outside control circuit and brushless DC motor M electric connection, motor driver IC1 controls brushless DC motor M through control circuit.
Preferably, the power conversion circuit in the motor driver IC1 converts the input power + VH to be used by the internal circuit of the motor driver IC1 and the motor hall, the optical coupling isolation circuit isolates and amplifies the PWM signal and the F/R signal and outputs the signal to the logic circuit, the logic circuit can output the processed signal to the drive circuit after the comprehensive processing of the hall signal, the current limiting protection signal, the PWM control signal and the direction signal of the brushless dc motor, the drive circuit outputs the received signal to the power output circuit formed by the MOS transistor to realize the power output and drive the brushless dc motor M to rotate, the current limiting protection circuit samples and monitors the current of the power output circuit and outputs the corresponding signal to the logic circuit, when the power current exceeds the specified value, the power output is cut off through the control logic circuit, and the motor driver is protected.
Preferably, the motor driver IC1 has thirteen pins, a first pin is an input signal ground, a second pin is a PWM signal control terminal, a third pin is an F/R signal control terminal, a fourth pin is a hall power supply, a fifth pin is a hall signal SA, a sixth pin is a hall signal SB, a seventh pin is a hall signal SC, an eighth pin is a hall power supply ground, a ninth pin is an output terminal U, a tenth pin is an output terminal V, an eleventh pin is an output terminal W, a twelfth pin is a power supply ground, and a thirteenth pin is a power supply.
Preferably, the voltage stabilizing circuit comprises a tantalum electrolytic capacitor C1, a tantalum electrolytic capacitor C2 and a transient suppression diode V1.
Preferably, the cathode of the transient suppression diode V1 is connected to the thirteenth pin of the motor driver IC1, the anode of the transient suppression diode V1 is connected to the twelfth pin of the motor driver IC1, the anode of the tantalum electrolytic capacitor C1 is connected to the thirteenth pin of the motor driver IC1, the cathode of the tantalum electrolytic capacitor C1 is connected to the anode of the tantalum electrolytic capacitor C2, and the cathode of the tantalum electrolytic capacitor C2 is connected to the twelfth pin of the motor driver IC 1.
The single-power-supply brushless servo motor driving circuit is characterized in that a power supply conversion circuit is designed in a dual-power-supply brushless servo motor driver, so that the purposes of single-power-supply and wide working voltage range are achieved; the overall design thought of the driving circuit is simplified, and the design cost is reduced; an integrated design idea is adopted, and the volume of the product is reduced; the power device has high derating redundancy and better current limiting capability, and improves the reliability of products; the internal circuit has the measures of hardware filtering, isolation and the like, and has strong anti-jamming capability.
The parts which are not disclosed in the invention are all the prior art, and the specific structure, the materials and the working principle are not detailed. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A single-power-supply brushless servo motor driving circuit is characterized in that: the brushless direct current motor control circuit comprises a power supply + VH, a voltage stabilizing circuit and a motor driver IC1, wherein the power supply + VH provides working voltage for a motor driver IC1 through the voltage stabilizing circuit, the motor driver IC1 internally comprises a power conversion circuit, an optical coupling isolation circuit, a logic circuit, a driving circuit, a power output circuit and a current-limiting protection circuit, the motor driver IC1 is electrically connected with an external control circuit and the brushless direct current motor M, and the motor driver IC1 controls the brushless direct current motor M through the control circuit.
2. The single-power-supply brushless servo motor driving circuit according to claim 1, characterized in that: the power conversion circuit in the motor driver IC1 converts the input power supply + VH and then supplies the power to the internal circuit of the motor driver IC1 and the motor Hall, the optical coupling isolation circuit isolates and amplifies the PWM signal and the F/R signal and then outputs the signal to the logic circuit, the logic circuit can output the processed signal to the drive circuit after the comprehensive processing of the Hall signal, the current-limiting protection signal, the PWM control signal and the direction signal of the brushless DC motor, the drive circuit outputs the received signal to the power output circuit formed by the MOS tube to realize the power output and drive the brushless DC motor M to rotate, and the current-limiting protection circuit samples and monitors the current of the power output circuit and outputs the corresponding signal to the logic circuit.
3. The single-power-supply brushless servo motor driving circuit according to claim 1, characterized in that: the motor driver IC1 has thirteen pins, the first pin is input signal ground, the second pin is PWM signal control end, the third pin is F/R signal control end, the fourth pin is Hall power supply, the fifth pin is Hall signal SA, the sixth pin is Hall signal SB, the seventh pin is Hall signal SC, the eighth pin is Hall power supply ground, the ninth pin is output end U, the tenth pin is output end V, the eleventh pin is output end W, the twelfth pin is power supply ground, and the thirteenth pin is power supply.
4. The single-power-supply brushless servo motor driving circuit according to claim 3, characterized in that: the voltage stabilizing circuit comprises a tantalum electrolytic capacitor C1, a tantalum electrolytic capacitor C2 and a transient suppression diode V1.
5. The single-power-supply brushless servo motor driving circuit according to claim 4, characterized in that: the negative electrode of the transient suppression diode V1 is connected with the thirteenth pin of the motor driver IC1, the positive electrode of the transient suppression diode V1 is connected with the twelfth pin of the motor driver IC1, the positive electrode of the tantalum electrolytic capacitor C1 is connected with the thirteenth pin of the motor driver IC1, the negative electrode of the tantalum electrolytic capacitor C1 is connected with the positive electrode of the tantalum electrolytic capacitor C2, and the negative electrode of the tantalum electrolytic capacitor C2 is connected with the twelfth pin of the motor driver IC 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110353553.5A CN113098332A (en) | 2021-04-01 | 2021-04-01 | Single-power-supply brushless servo motor driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110353553.5A CN113098332A (en) | 2021-04-01 | 2021-04-01 | Single-power-supply brushless servo motor driving circuit |
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| Publication Number | Publication Date |
|---|---|
| CN113098332A true CN113098332A (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110353553.5A Pending CN113098332A (en) | 2021-04-01 | 2021-04-01 | Single-power-supply brushless servo motor driving circuit |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213653A (en) * | 2005-07-04 | 2008-07-02 | 罗姆股份有限公司 | Semiconductor integrated circuit device |
| CN101895241A (en) * | 2009-05-22 | 2010-11-24 | 台达电子工业股份有限公司 | Dual-power motor control system and motor control device thereof |
| CN201994897U (en) * | 2011-02-11 | 2011-09-28 | 国营红峰机械厂 | Digital controller of brushless direct current motor |
| CN203883720U (en) * | 2014-06-04 | 2014-10-15 | 国家电网公司 | A direct current brushless motor closed loop control system |
| CN110932612A (en) * | 2019-11-07 | 2020-03-27 | 上海航天控制技术研究所 | Differential high-performance brushless motor driver and driving method |
| CN210608971U (en) * | 2019-11-11 | 2020-05-22 | 武汉工程大学 | Non-inductive low-voltage brushless direct current motor controller |
-
2021
- 2021-04-01 CN CN202110353553.5A patent/CN113098332A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213653A (en) * | 2005-07-04 | 2008-07-02 | 罗姆股份有限公司 | Semiconductor integrated circuit device |
| CN101895241A (en) * | 2009-05-22 | 2010-11-24 | 台达电子工业股份有限公司 | Dual-power motor control system and motor control device thereof |
| CN201994897U (en) * | 2011-02-11 | 2011-09-28 | 国营红峰机械厂 | Digital controller of brushless direct current motor |
| CN203883720U (en) * | 2014-06-04 | 2014-10-15 | 国家电网公司 | A direct current brushless motor closed loop control system |
| CN110932612A (en) * | 2019-11-07 | 2020-03-27 | 上海航天控制技术研究所 | Differential high-performance brushless motor driver and driving method |
| CN210608971U (en) * | 2019-11-11 | 2020-05-22 | 武汉工程大学 | Non-inductive low-voltage brushless direct current motor controller |
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Application publication date: 20210709 |