CN105141202A - Intelligent direct-current motor driving device main circuit - Google Patents
Intelligent direct-current motor driving device main circuit Download PDFInfo
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- CN105141202A CN105141202A CN201510617288.1A CN201510617288A CN105141202A CN 105141202 A CN105141202 A CN 105141202A CN 201510617288 A CN201510617288 A CN 201510617288A CN 105141202 A CN105141202 A CN 105141202A
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Abstract
Provided is an intelligent direct-current motor driving device main circuit. The main circuit comprises a control chip circuit, a power circuit, a direct-current motor driving circuit, a signal amplifying circuit, an external port circuit, a key setting circuit, a mode switching circuit and a fault early-warning circuit. The control chip circuit is used for generating double ways of PWM waves to control the direct-current motor driving circuit. The power circuit is used for providing power for the control chip circuit, the signal amplifying circuit and the direct-current motor driving circuit. The direct-current motor driving circuit is used for driving a direct-current motor of a driving circuit lower than 150A. The signal amplifying signal is used for adjusting amplification of input signals. The key setting circuit is used for manually setting all kinds of parameter values. The mode switching circuit is used for switching and controlling different working modes of a chip. The fault early-warning module is used for giving out alarms when devices operate abnormally. The main circuit has multiple functions, and is quite high in intelligent degree, and all circuits have individual responsibilities.
Description
Technical field
The present invention relates to a kind of motor driving apparatus main circuit, in particular a kind of based on intelligent DC motor driving apparatus main circuit.
Background technology
DC motor, with its good speed adjustment features, operational efficiency advantages of higher, in the dragging system had higher requirements to speed governing at electric traction, equipment lifting etc., is widely applied.Current, the direct current machine of low capacity, as the most basic electromechanical energy conversion device, is still widely used in automatic control system.
Direct current machine has following features: 1) very excellent linear mechanical characteristic; 2) wider speed adjustable range; 3) good starting characteristic; 4) control circuit is relatively simple.Just due to These characteristics, direct current machine is for a long time always in various drive unit and servo system.After the nineties in last century, along with the maturation of computer technology and control theory, direct current machine has had swift and violent development especially; In recent years, direct current machine manufacturing process constantly promotes, advanced control algorithm development, what high performance direct current machine was more and more general is applied to the different field such as automatic office device, aerospace craft, intelligent automobile, studies as can be seen here a kind ofly to have important application prospect based on intelligent DC motor driving apparatus main circuit.
Summary of the invention
In order to overcome, existing DC motor Driver equipment main circuit function singleness, intelligence degree are lower, circuit divides the work indefinite deficiency, the invention provides that a kind of diverse in function, intelligence degree are higher, the circuit division of labor is clear and definite based on intelligent DC motor driving apparatus main circuit.
In order to solve the problems of the technologies described above the technical scheme provided be:
A kind of based on intelligent DC motor driving apparatus main circuit, comprise control chip circuit (1), power circuit (2), direct current motor drive circuit (3), signal amplification circuit (4), external interface circuit (5), button initialization circuit (6), mode switching circuit (7) and fault pre-alarming circuit (8);
Described control chip circuit controls direct current motor drive circuit for generation of two-way PWM ripple; Described power circuit is used for powering to control chip circuit, signal amplification circuit and direct current motor drive circuit; Described direct current motor drive circuit is for driving the direct current machine of below 150A drive circuit; Described signal amplification circuit is for regulating the amplification to input signal; Described button initialization circuit is used for all kinds of parameter value of artificial setting; Described mode switching circuit is used for the different working modes of switching controls chip; Described fault pre-alarming module is used for giving the alarm when equipment abnormal running;
Described control chip circuit is connected with described direct current motor drive circuit, external interface circuit, button initialization circuit, mode switching circuit and fault pre-alarming circuit simultaneously, described external interface circuit is connected with described signal amplification circuit, described signal amplification circuit is connected with described control chip circuit, and described power circuit is connected with direct current motor drive circuit with described signal amplification circuit, control chip circuit respectively.
Further, described control chip circuit comprises external seven road A/D interfaces and four road I/O interfaces, and needing according to user can arbitrary extension.
Further again, described power circuit comprises chip TPA7350, TPS7333, LM2940, TL1963 and MC34063, and described TPA7350 chip circuit can export the 5V linear voltage of maximum current 500mA; TPA7333 chip circuit can export the 3.3V linear voltage of maximum current 500mA; Described LM2940 chip circuit can export the 5V linear voltage of maximum current 1A; Described TL1963 chip circuit can export the adjustable linear voltage of maximum current 1.5A, and voltage adjustable extent is 1.21 ~ 20V; Described MC34063 chip circuit can export the rearrangeable switch voltage of maximum current 1.5A, and voltage adjustable extent is 3 ~ 40V.All power supply chip outputs include the ceramic disc capacitor of 0.1uF for output filtering and burning voltage.
Further, the mode that described direct current motor drive circuit adopts PWM to control, can drive any direct current machine of below maximum current 150A.Meanwhile, between the PWM of the PWM that control chip circuit exports and direct current motor drive circuit input, add light-coupled isolation chip, can available protecting control chip not be damaged and interference between isolating digitally and in analog.
Described signal amplification circuit adopts the chip OPA4350 of integrated four rail tracking amplifiers, and effective multiplication factor of No. four amplifying circuits is 1 ~ 11 times.
Described external interface circuit comprises input interface and output interface, and input interface is used for Gather and input amount; Output interface is used for external module expansion, can expand the modules such as OLED liquid crystal, encoder, steering wheel, wireless, gyroscope.
Described fault pre-alarming circuit is used for giving the alarm when equipment abnormal running, so that pinpoint the problems more easily.
Beneficial effect of the present invention is: the division of labor of diverse in function, intelligence degree higher, each circuit is clear and definite.
Accompanying drawing explanation
Fig. 1 is a kind of structured flowchart based on intelligent DC motor driving apparatus main circuit of the present invention.
Fig. 2 is the schematic diagram of power circuit.
Fig. 3 is the schematic diagram of direct current motor drive circuit
Fig. 4 is the schematic diagram of control chip circuit.
Fig. 5 is the schematic diagram of signal amplification circuit.
Fig. 6 is the schematic diagram of external interface circuit.
Fig. 7 is the schematic diagram of button initialization circuit.
Fig. 8 is the schematic diagram of mode switching circuit.
Fig. 9 is the schematic diagram of fault pre-alarming circuit.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1 ~ Fig. 9, a kind of based on intelligent DC motor driving apparatus main circuit, comprise control chip circuit (1), power circuit (2), direct current motor drive circuit (3), signal amplification circuit (4), external interface circuit (5), button initialization circuit (6), mode switching circuit (7) and fault pre-alarming circuit (8);
Described control chip circuit controls direct current motor drive circuit for generation of two-way PWM ripple, also produces the control signal to other circuit (comprising external interface circuit, button initialization circuit, mode switching circuit and fault pre-alarming circuit) simultaneously; Described power circuit is used for powering to control chip circuit, signal amplification circuit and direct current motor drive circuit; Described direct current motor drive circuit is for driving the direct current machine of below 150A drive circuit; Described signal amplification circuit is for regulating the amplification to input signal; Described button initialization circuit is used for all kinds of parameter value of artificial setting; Described mode switching circuit is used for the different working modes of switching controls chip; Described fault pre-alarming module is used for giving the alarm when equipment abnormal running.
Described control chip circuit is connected with described direct current motor drive circuit, external interface circuit, button initialization circuit, mode switching circuit and fault pre-alarming circuit simultaneously, described external interface circuit is connected with the described signal amplification circuit that drives, described signal amplification circuit is connected with described control chip circuit, and described power circuit is connected with direct current motor drive circuit with described signal amplification circuit, control chip circuit respectively.
Further, power circuit comprises chip TPA7350, TPS7333, LM2940, TL1963 and MC34063, for being other circuit with stable, efficiently voltage.Power circuit comprises 10 road voltages altogether: TPA7350 chip circuit can export the 5V linear voltage of maximum current 500mA, always has 3 tunnels and exports; TPA7333 chip circuit can export the 3.3V linear voltage of maximum current 500mA, always has 3 tunnels and exports; LM2940 chip circuit can export the 5V linear voltage of maximum current 1A, always has 1 tunnel and exports; TL1963 chip circuit can export the adjustable linear voltage of maximum current 1.5A, and voltage adjustable extent is 1.21 ~ 20V, always has 2 tunnels and exports; MC34063 chip circuit can export the rearrangeable switch voltage of maximum current 1.5A, and voltage adjustable extent is 3 ~ 40V, always has 1 tunnel and exports.All power supply chip inputs include the tantalum electric capacity of 10uF for stable input voltage; Output includes the ceramic disc capacitor of 0.1uF for output filtering and burning voltage.As Fig. 2, general supply input is " IN ", then respectively through switch " SW1 " and " SW2 ", is divided into two-way input " IN1 " and " IN2 ".Input " IN1 " connects the input of three TPA7350 chips, two panels TL1963 chip and a slice LM2940 chip respectively, i.e. the input of linear power supply; Input " IN2 " connects the input of MC34063 chip, i.e. the input of Switching Power Supply.LED4 and LED5 is respectively the signal lamp of linear power supply and Switching Power Supply.In addition, electric capacity C1, C2, C3, C4, C7, C8, C9, C10, C11, C12 are respectively the filter capacitor of 10 road voltage output ends, and model is the ceramic disc capacitor of 0.1uF.
Further again, the mode that described direct current motor drive circuit adopts PWM to control, the advantage that PWM controls is that the PWM ripple that can control any accounting easily exports, and further easily changes the rotating speed of direct current machine.This drive circuit can drive any direct current machine of below maximum current 150A.Meanwhile, between the PWM ripple of the PWM ripple that control chip circuit exports and direct current motor drive circuit input, add light-coupled isolation chip, can available protecting control chip not be damaged and interference between isolating digitally and in analog.As Fig. 3, the four road PWM ripples that control chip exports are first through light-coupled isolation chip, export to two-way half-bridge driven chip again, by the output of half-bridge driven chip control four road MOSPFT open with manage disconnected, realize the driving to direct current machine with this, and control chip just can realize the change to DC motor speed by the duty ratio changing PWM ripple.Wherein, the voltage sets of driving chip is 12V, is produced by the MC34063 chip of power circuit.In addition, R1_30, R2_30, R3_30, R4_30 are the resistance of 30 ohm, are placed in the grid of four MOSFET respectively, may be used for protecting MOSFET, promote the anti-overload ability of MOSFET, promote the reliability of direct current motor drive circuit with this.
Fig. 4 and Fig. 5 is respectively control chip circuit and signal amplification circuit.Control chip circuit comprises external seven road A/D interfaces and four road I/O interfaces, and needing according to user can arbitrary extension.Control chip circuit is the core place of whole circuit, other circuit and its all have common factor: gathering after the outside after amplifying circuit amplifies inputs, the controlled quentity controlled variable according to calculating gained converts corresponding PWM ripple to, controls direct current motor drive circuit with this; And according to actual needs with external interface circuit, button initialization circuit, mode switching circuit and fault pre-alarming circuit with the use of.
Signal amplification circuit adopts the chip OPA4350 of integrated four rail tracking amplifiers, and effective multiplication factor of No. four amplifying circuits is 1 ~ 11 times.This track to track amplifier is single supply op, simplifies the design of power circuit.
Fig. 6 ~ Fig. 9 is followed successively by external interface circuit, button initialization circuit, mode switching circuit and fault pre-alarming circuit.External interface circuit is divided into input interface and output interface two parts, the main Gather and input amount of input interface, and input variable is by first amplifying input control chip again, as H_C1, H_C2 and H_C3 interface in Fig. 6 through the signal of amplifying circuit after outside input; Output interface is mainly used in external module expansion, OLED liquid crystal, encoder, steering wheel, wireless, the module such as bluetooth, gyroscope can be expanded, corresponding H_Yj, H_B, H_DD, H_Wx, H_LY, H_TLY interface respectively, these modules can need arbitrary extension with use, greatly improve intelligence degree.
Button initialization circuit is used for all kinds of parameter value of artificial setting.These parameters comprise: initiation parameter, controller parameter, PWM duty ratio.
Mode switching circuit is used for the different working modes of switching controls chip.These different mode of operations often need sets itself by task, then are switched fast by mode switching circuit.
Fault pre-alarming circuit is used for giving the alarm when equipment abnormal running, so that pinpoint the problems more easily.Equipment often runs into various problem when reality uses or test, and in order to determine the reason occurring this problem, just needs progressively to get rid of some reason by fault pre-alarming circuit, to find out its reason fast.
Claims (6)
1. based on an intelligent DC motor driving apparatus main circuit, it is characterized in that: comprise control chip circuit (1), power circuit (2), direct current motor drive circuit (3), signal amplification circuit (4), external interface circuit (5), button initialization circuit (6), mode switching circuit (7) and fault pre-alarming circuit (8);
Described control chip circuit controls direct current motor drive circuit for generation of two-way PWM ripple; Described power circuit is used for powering to control chip circuit, signal amplification circuit and direct current motor drive circuit; Described direct current motor drive circuit is for driving the direct current machine of below 150A drive circuit; Described signal amplification circuit is for regulating the amplification to input signal; Described button initialization circuit is used for all kinds of parameter value of artificial setting; Described mode switching circuit is used for the different working modes of switching controls chip; Described fault pre-alarming module is used for giving the alarm when equipment abnormal running;
Described control chip circuit is connected with described direct current motor drive circuit, external interface circuit, button initialization circuit, mode switching circuit and fault pre-alarming circuit simultaneously, described external interface circuit is connected with described signal amplification circuit, described signal amplification circuit is connected with described control chip circuit, and described power circuit is connected with direct current motor drive circuit with described signal amplification circuit, control chip circuit respectively.
2. according to claim 1 based on intelligent DC motor driving apparatus main circuit, it is characterized in that: described control chip circuit comprises external seven road A/D interfaces and four road I/O interfaces.
3. according to claim 1 and 2 based on intelligent DC motor driving apparatus main circuit, it is characterized in that: described power circuit comprises chip TPA7350, TPS7333, LM2940, TL1963 and MC34063, described TPA7350 chip circuit exports the 5V linear voltage of maximum current 500mA; Described TPA7333 chip circuit exports the 3.3V linear voltage of maximum current 500mA; Described LM2940 chip circuit exports the 5V linear voltage of maximum current 1A; Described TL1963 chip circuit exports the adjustable linear voltage of maximum current 1.5A, and voltage adjustable extent is 1.21 ~ 20V; Described MC34063 chip circuit exports the rearrangeable switch voltage of maximum current 1.5A, and voltage adjustable extent is 3 ~ 40V, and each chip output includes the ceramic disc capacitor of 0.1uF for output filtering and burning voltage.
4. according to claim 1 and 2 based on intelligent DC motor driving apparatus main circuit, it is characterized in that: the mode that described direct current motor drive circuit adopts PWM to control, drive any direct current machine of below maximum current 150A, between the PWM ripple of the PWM ripple that described control chip circuit exports and direct current motor drive circuit input, add light-coupled isolation chip.
5. according to claim 1 and 2 based on intelligent DC motor driving apparatus main circuit, it is characterized in that: described signal amplification circuit adopts the chip OPA4350 of integrated four rail tracking amplifiers, and effective multiplication factor of No. four amplifying circuits is 1 ~ 11 times.
6. according to claim 1 and 2 based on intelligent DC motor driving apparatus main circuit, it is characterized in that: described external interface circuit comprises input interface and output interface, input interface is used for Gather and input amount; Output interface is used for external module expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510617288.1A CN105141202A (en) | 2015-09-24 | 2015-09-24 | Intelligent direct-current motor driving device main circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510617288.1A CN105141202A (en) | 2015-09-24 | 2015-09-24 | Intelligent direct-current motor driving device main circuit |
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| CN105141202A true CN105141202A (en) | 2015-12-09 |
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| CN201510617288.1A Pending CN105141202A (en) | 2015-09-24 | 2015-09-24 | Intelligent direct-current motor driving device main circuit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0762626A1 (en) * | 1995-09-01 | 1997-03-12 | Mitsubishi Denki Kabushiki Kaisha | Motor control unit |
| CN1255777A (en) * | 1998-12-02 | 2000-06-07 | 中国科学院电工研究所 | Driver for both AC and DC motors and its drive control method |
| CN102298346A (en) * | 2011-05-26 | 2011-12-28 | 江苏科技大学 | Intelligent wheel chair voice drive controller and identification and control method thereof |
| CN103592885A (en) * | 2012-08-16 | 2014-02-19 | 天津市鑫成新科贸有限公司 | PLC programming controller of electric wheelchair |
-
2015
- 2015-09-24 CN CN201510617288.1A patent/CN105141202A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0762626A1 (en) * | 1995-09-01 | 1997-03-12 | Mitsubishi Denki Kabushiki Kaisha | Motor control unit |
| CN1255777A (en) * | 1998-12-02 | 2000-06-07 | 中国科学院电工研究所 | Driver for both AC and DC motors and its drive control method |
| CN102298346A (en) * | 2011-05-26 | 2011-12-28 | 江苏科技大学 | Intelligent wheel chair voice drive controller and identification and control method thereof |
| CN103592885A (en) * | 2012-08-16 | 2014-02-19 | 天津市鑫成新科贸有限公司 | PLC programming controller of electric wheelchair |
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Application publication date: 20151209 |