CN104483869A - Automatic feeder digital display touch type speed regulation controller having motor protection function - Google Patents
Automatic feeder digital display touch type speed regulation controller having motor protection function Download PDFInfo
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- CN104483869A CN104483869A CN201410600660.3A CN201410600660A CN104483869A CN 104483869 A CN104483869 A CN 104483869A CN 201410600660 A CN201410600660 A CN 201410600660A CN 104483869 A CN104483869 A CN 104483869A
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- automatic feeder
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- Automation & Control Theory (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
The invention discloses an automatic feeder digital display touch type speed regulation controller having the motor protection function. An electric loop of the controller comprises a power source switch (1), a fuse circuit (2), a zero cross detection circuit (3), a relay J1 driving material throwing indicating circuit (4), a relay J1 contact protection circuit (5), a speed regulation driving output circuit (6), a protection circuit (7), a sampling circuit (8), a touch input setting circuit (10), a display driving circuit (11), a single-chip microcomputer (12), a power source indicating circuit (13), a clock circuit (14), a rectification voltage stabilizing circuit (15), a transformer (16), an emergency switch (17) and wiring terminals (19). According to the controller, the single-chip microcomputer is taken as the core control element, and the controller has properties of simple input setting, high time precision and stable speed regulation performance, and automatic speed regulation control and motor protection functions of a feeder are realized.
Description
Technical field
The present invention relates to controller, be specifically related to the digital display touch type speed setting controller of the full-automatic feeder with protection electric motors function.
Background technology
In aquaculture field, feeder has become indispensable aquacultural machinery in culture fishery, and the work of feeder is realized by controller.Existing controller: 1.. do not possess Automatic Control function; 2.. there is no stable, pulseless speed regulating control function; 3.. the mechanical timer of employing is fragile or stop the phenomenon walked; 4.. do not possess electric motor protecting function.Therefore the high automatic speed regulating controller with there being protection electric motors function of a kind of control time precision is needed.
Summary of the invention
The object of the invention is to: a kind of digital display touch type speed setting controller with the full-automatic feeder of protection electric motors function is provided, adopt anti-interference strong single-chip microcomputer as core control element, standard clock circuit is as real-time clock, touch sensitive key is as arranging input, both hand control and automation start translation function had been realized, realize time calibration again, power-off keeps real-time timing, also realize 10 on time points in whole day 24 hours, on time 1-90 minute each time, time of the shedding 1-10 second of starting shooting each time, the pause interval time 0-20 second of starting shooting each time, the set-up mode of distance 1-9 shelves is raised in the throwing of starting shooting each time, have when starting shooting at every turn, after material casting motor first rotates 10-15 second, blanking motor is interval work, after start terminates, the stall immediately of blanking motor, material casting motor time delay 5-10 closes second, timing countdown numerical monitor during start, the display of distance gear number is raised in throwing, shed the time-interleaved countdown numerical monitor with pause interval, and can to material casting motor generation overcurrent, stall, clamping stagnation carries out the control form of available protecting.
Technical solution of the present invention is: the electric loop of this controller by power switch, insurance circuit, zero cross detection circuit, relay drives material casting indicating circuit, relay contact protection circuit, speed governing driver output circuit, protection circuit, sample circuit, touch input arranges circuit, display driver circuit, single-chip microcomputer, clock circuit, power indicating circuit, regulator rectifier circuit, transformer, emergency button, connection terminal connect and compose, wherein: insurance circuit is made up of fuse holder and the fuse that inserts the inner die cavity of fuse holder; Zero cross detection circuit is made up of fracture in of single-chip microcomputer and full-bridge rectification diode, resistance, electric capacity and triode; Relay drives material casting indicating circuit to be made up of 1 port of single-chip microcomputer and resistance, light emitting diode, triode, relay and diode; Relay contact protection circuit is made up of electric capacity and resistance; Sample circuit is made up of 1 port of single-chip microcomputer and sample resistance, diode, stabilivolt, capacitance resistance and optocoupler; Speed governing driver output circuit is made up of another 1 port of single-chip microcomputer and resistance, electric capacity, optocoupler and controllable silicon; Touch input arranges circuit and is made up of with touch chip, touch sensitive key and electric capacity 4 ports of single-chip microcomputer; Display driver circuit is made up of 15 ports of single-chip microcomputer and resistance, triode, charactron and light emitting diode; Clock circuit is made up of 3 ports of single-chip microcomputer and clock chip, crystal oscillator, electric capacity and rechargeable battery; Regulator rectifier circuit is made up of diode, electric capacity, regulator block.
Wherein, described controller is formed by installing wiring board in cabinet, cabinet is formed by panel and the connection of rear plate by upper bottom half, panel and rear plate insert in the draw-in groove of cabinet, connection terminal installed by rear plate, and connection terminal links start-up capacitance, blanking motor and material casting motor respectively, panel is installed power switch, emergency button, fuse holder, panel adopts translucent plastic sheet, and is printed on functional word, power switch, emergency button, single-chip microcomputer, clock chip, crystal oscillator, touch chip, resistance, electric capacity, diode, stabilivolt, light emitting diode, triode, controllable silicon, optocoupler, integrated package of pressure-stabilizing, relay, charactron, the welding of rechargeable battery mount pad in the circuit board, touch-sensitive panel is connected on wiring board by hard wire support, wiring board passes through power switch, emergency button be arranged on fuse holder and potentiometer are housed panel on, touch-sensitive panel is facing to panel after the function Petting Area be close in, multiple light emitting diode is respectively facing to material casting status display area and the Fumction display district of panel, group of four figures pipe and double figures code pipe face toward the numeral method district of panel, the output line of wiring board is welded to the welding end of the correspondence being contained in rear plate upper connecting terminal, power lead one end through rear plate through wires hole welding on a corresponding position.
The present invention has the following advantages: 1. adopt anti-interference strong single-chip microcomputer as control core device, makes circuit simple, and the control time is very accurate, meets consumers' demand, achieves the Automatic Control function of feeder; 2. adopt the input set-up mode of capacitance touch induction, achieve not contacting completely of people and electricity, solve mechanical key and work in a humidity environment for a long time and cause the problem of loose contact, greatly extend serviceable life, the maintenance decreasing user bothers; 3. allow material casting motor first rotate the function with rear stall, eliminate the clout in material casting mechanism, can not catching phenomenon of dumping be caused; 4. adopt and be detected zero pulse signal and software program, make speed governing export drive waveforms and synchronized and very stable, thus make the stable distance that feeds intake, pulse little, Driving Torque is large; 5. adopt numerical monitor and function instruction, make the information of control intuitive, clear; 6. adopt freely switching of automatic and manual operation function, make user's flexible operation, easy to use; 7. allow user according to the habit of fish, feeding intake the on time of whole day can be freely set, at every turn different start durations, shed dead time time and distance is raised in throwing, have more science and rationality; 8. by detecting the size of the load current of material casting motor, the fault that material casting motor burns because of putty or clamping stagnation is efficiently solved; 9. production run operation is simple, and debugging is convenient, reduces production cost, freely can arrange the on time that whole day repeatedly feeds intake, at every turn different start durations, shed the time, dead time, throwing raise Distance geometry protection motor.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the front elevation in kind of Fig. 1.
Fig. 3 is plate schematic diagram after Fig. 2.
Fig. 4 is Fig. 2 vertical view cutaway drawing.
In figure: 1 power switch, 2 insurance circuits, 3 zero cross detection circuits, 4 relay J 1 drive material casting indicating circuit, 5 relay J 1 contact protection circuit, 6 speed governing driver output circuit, 7 protection circuits, 8 sample circuits, 9 connection terminals, 10 touch input arranges circuit, 11 display driver circuits, 12 single-chip microcomputers, 13 power indicating circuits, 14 clock circuits, 15 regulator rectifier circuits, 16 transformers, 17 emergency buttons, 18 touch-sensitive panel, 19 group of four figures pipes, 20 double figures code pipes, 21 light emitting diodes, 22 wiring boards, 23 cabinets, 24 panels, plate after 25, 26 fuse holders, 27 numeral method districts, 28 material casting status display areas, 29 function Petting Areas, 30 Fumction display districts, 31, 32 start-up capacitances, 33 power leads.
Embodiment
As Figure 1-4, the electric loop of this controller is by power switch 1, insurance circuit 2, zero cross detection circuit 3, relay J 1 drives material casting indicating circuit 4, relay J 1 contact protection circuit 5, speed governing driver output circuit 6, protection circuit 7, sample circuit 8, touch input and circuit 10 is set, display driver circuit 11, single-chip microcomputer 12, power indicating circuit 13, clock circuit 14, regulator rectifier circuit 15, transformer 16, emergency button 17, connection terminal 10 connects and composes, wherein: insurance circuit 1 is made up of the fuse of fuse holder 26 and the inner die cavity of insertion fuse holder 26, zero cross detection circuit 3 is made up of with full-bridge rectification diode D1-D4, resistance R2-R6, electric capacity C3 and triode Q1-Q2 fracture in of single-chip microcomputer 1,2U2 18, relay J 1 drives material casting indicating circuit 4 to be made up of with resistance R15, light emitting diode DS12, triode Q10, relay J 1 and diode D6 1 port 23 of single-chip microcomputer 12U2, relay J 1 contact protection circuit 5 is made up of electric capacity C7 and resistance R16, speed governing driver output circuit 6 is made up of with resistance R17-R20, optocoupler U5 and controllable silicon Q11 another 1 port 25 of single-chip microcomputer 12U2, protection circuit 7 is made up of electric capacity C9 and resistance R21, sample circuit 9 is made up of with sample resistance R20, diode D7, stabilivolt DW, electric capacity E3, resistance R22-R23 and optocoupler U6 1 port one 5 of single-chip microcomputer 12U2, touch input arranges circuit 10 and is made up of 4 port ones 1,13,16,17 of single-chip microcomputer 12U2 and touch chip U4, touch-sensitive panel 18 and electric capacity C6, display driver circuit 11 by single-chip microcomputer 12U2 15 port ones-10,19,24,26-28 and resistance R7-R14, triode Q3-Q9, group of four figures pipe 19DS2,2 bit digital display 20DS3 and light emitting diode DS4-DS11 form, clock circuit 14 is made up of 3 port 20-22 of single-chip microcomputer 12U2 and clock chip U3, crystal oscillator Y1, electric capacity C4-C5 and rechargeable battery BT1, regulator rectifier circuit 15 is made up of diode D1-D5, electric capacity C1-C2, E1-E2, regulator block U1.
Wherein, described controller is formed by installing wiring board 22 in cabinet 23, cabinet 23 is formed by panel 24 and rear plate 25 connection by upper bottom half, panel 24 and rear plate 25 insert in the draw-in groove of cabinet 23, connection terminal 9 installed by rear plate 25, connection terminal 9 link respectively start-up capacitance 31,32, blanking motor M 2 and material casting motor M 1, panel 24 is installed power switch 1, emergency button 17, fuse holder 26, panel 24 adopts translucent plastic sheet, and is printed on functional word, power switch 1, emergency button 17, single-chip microcomputer 12U2, clock chip U3, crystal oscillator Y1, touch chip U4, resistance R1-R23, electric capacity C1-C9, E1-E3, diode D1-D7, stabilivolt DW, light emitting diode DS1, DS4-DS12, triode Q1-Q10, controllable silicon Q11, optocoupler U5-U6, integrated package of pressure-stabilizing U1, relay J 1, group of four figures pipe 19DS2, double figures code pipe 20DS3, rechargeable battery BT1 mount pad is welded on wiring board 22, and touch-sensitive panel 18 is connected on wiring board 22 by hard wire support, and wiring board 22 is by power switch 1, emergency button 17 is arranged on and is equipped with on the panel 24 of fuse holder 26, and touch-sensitive panel 18 is facing to panel 24 and after the function Petting Area 29 be close in, multiple light emitting diode DS1, DS12 and DS4-DS11 is respectively facing to material casting status display area 28 and the Fumction display district 30 of panel 24, group of four figures pipe 19DS2 and double figures code pipe 20DS3 is facing to the numeral method district 27 of panel 24, the output line of wiring board 24 is welded to the welding end of the correspondence being contained in rear plate 25 upper connecting terminal 9, and power lead 33 one end through rear plate 25 through wires hole welding on a corresponding position.
Of the present invention have in the digital display touch type speed setting controller of the full-automatic feeder of protection electric motors function, installs power transformer 16 in cabinet 23.
When controller inserts power supply, emergency button 17 is placed in normal position, after power switch 1 is opened, circuit working, power light and automatic pilot lamp are lighted, group of four figures pipe 19DS2 show real-time time hour and minute, 2 bit digital display 20DS3 shows second, and all the other functional indicator lights all do not work.When touching " auto-manual " region, realize automatic and manual operation function to switch, the automatic pilot lamp in Fumction display district 30 and manual pilot lamp switch to be lighted, when being in automatic function, the automatic pilot lamp in Fumction display district 30 is lighted, manual pilot lamp extinguishes, when being in manual function, the automatic pilot lamp in Fumction display district 30 extinguishes, manual pilot lamp is lighted, simultaneously, material casting motor M 1 first High Rotation Speed 3 is raised distance gear number by the throwing manually arranged after second and is started to rotate, double figures code pipe 20DS3 is countdown display from 10-15 second, countdown terminates rear blanking motor M 2 and starts working with pause interval by manual shedding of setting, and display is exchanged on double figures code pipe 20DS3, touch again " auto-manual " region time, blanking motor M 2 is closed, material casting motor M 1 time delay 5-10 closes second, when touching " arranging inspection " region one time, realize successively checking or arranging " during school ", " shedding " time during manual start, " pause " time during manual start, throwing during manual start is raised " distance ", " start " time for the first time, first time start " duration ", " shed " time for the first time, " pause " time for the first time, first time throws and raises " distance ", " start " time for the second time, second time start " duration ", " shed " time for the second time, " pause " time for the second time, second time is thrown and is raised " distance ", tenth " start " time, tenth start " duration ", tenth " shedding " time, tenth " pause " time, throw the function of raising " distance " tenth time, and set parameter is stored in the E that single-chip microcomputer 12U2 specifies
2pROM district, meanwhile, the corresponding light emitting diode in Fumction display district 30 is lighted, second position double figures code pipe 20DS3 show number of times number.When touching " timing " region one time, two hours bit digital in a left side of group of four figures pipe 19DS2 carry out adding one, when being in " during school " function, change between " 0-23 ", when first place is 0, and automatic distinguishing; When being in " start " time function, change between " 0-23-'--' ", when first place is 0, automatic distinguishing; When being in other function, touch " timing " invalid.When touching " adjust point " region one time, two minutes bit digital in the right side of group of four figures pipe 19DS2 carry out adding one, when being in " during school " function, change between " 0-59 ", when being in " start " time function, change between " 0-59-'--' ", when being in start " duration " function, change between " 1-90 ", when first place is 0, automatic distinguishing; When being in " shedding " time function, change between " 1-10 ", when first place is 0, automatic distinguishing; When being in " pause " time function, change between " 0-20 ", when first place is 0, automatic distinguishing; Be in throwing when raising " distance " function, change between " 1-9 ", the larger rotating speed of numeral is faster.When arranging " start " time function, touch " timing " respectively and " adjust and divide " region, make the time figure needed for group of four figures pipe 19DS2 display, when " start " time removed by needs, touch " timing " respectively and " adjust and divide " region, group of four figures pipe 19DS2 is shown "-"; In " setting " or " inspection " process, if need to terminate " setting " or " inspection ", touch " auto-manual " region.When " pause " time arranged is 0, be seamlessly material casting continuously in the process that feeds intake.
This controller is in automatic operation process, the on time of setting point is compared with real-time time, when running into identical, the port 25 of single-chip microcomputer 12U2 becomes low level, optocoupler U5 conducting, after startup material casting motor M 1 rotated for 3 seconds, single-chip microcomputer 12U5 is by zero cross detection circuit 3, control port 25 exports the trigger pip with synchronized, material casting motor is rotated by the distance rotating speed arranged, simultaneously, group of four figures pipe 19DS2 becomes the gear number of raising distance in leftmost bit display throwing from showing real-time time, right this start " duration " time of two displays, and subtract a countdown display with per minute, double figures code pipe 20DS3 from 10-15 second to subtract a countdown display p.s., after countdown terminates, single-chip microcomputer 12U2 controls blanking motor M 2 and starts interval work by shedding of this start setting with the dead time, and exchange to subtract a display p.s. on double figures code pipe 20DS3, when start shooting " duration " becomes 0, blanking motor M 2 is closed, material casting motor M 1 time delay 5-10 closes second, 5-10 time second of time delay on double figures code pipe 20DS3 to subtract a display p.s., after material casting motor M 1 is closed, this end of starting shooting, group of four figures pipe 19DS2 and 2 bit digital display 20DS3 shows the current real time.
Rotating in material casting motor M 1 feeds intake in process, sample circuit 8 detects the voltage on sample resistance R20, if the electric current flowing through sample resistance R20 exceedes the trouble free service electric current of material casting motor M 1, optocoupler U6 conducting, the pin 15 of single-chip microcomputer 12U2 is made to be low level, judge after confirmation through single-chip microcomputer 12U2, pin 25,23 is exported high level, optocoupler U5 and relay J 1 do not work, make material casting motor M 1, blanking motor M 2 quits work, the 4-digit number of group of four figures pipe 19DS2 carries out sudden strain of a muscle with the frequency of 1Hz and shows, to show that material casting motor M 1 overloads overcurrent or abnormal.
This controller is when there being external power supply, and rechargeable battery BT1 is charged to it by clock chip U3, and do not having under external power supply or closedown power-off condition, rechargeable battery BT1 maintains clock chip U3 work, and ensure normal timing, other circuit quits work.
When controller of the present invention during causing trouble because of unpredictable reason, as long as emergency button 17 to be placed in emergency position, makes material casting motor M 1 and blanking motor M 2 work, carries out continuous bait throwing in.
Claims (10)
1. there is the digital display touch type speed setting controller of the full-automatic feeder of protection electric motors function, it is characterized in that: the electric loop of this controller is by power switch (1), insurance circuit (2), zero cross detection circuit (3), relay J 1 drives material casting indicating circuit (4), relay J 1 contact protection circuit (5), speed governing driver output circuit (6), protection circuit (7), sample circuit (8), touch input and circuit (10) is set, display driver circuit (11), single-chip microcomputer (12), power indicating circuit (13), clock circuit (14), regulator rectifier circuit (15), transformer (16), emergency button (17), connection terminal (9) connects and composes.
2. the digital display touch type speed setting controller with the full-automatic feeder of protection electric motors function according to claim 1, it is characterized in that: material casting motor M 1 rotates and feeds intake in process, sample circuit (8) detects the voltage on sample resistance R20, if the electric current flowing through sample resistance R20 exceedes the trouble free service electric current of material casting motor M 1, optocoupler U6 conducting, the pin 15 of single-chip microcomputer (12) U2 is made to be low level, judge after confirmation through single-chip microcomputer (12) U2, make material casting motor M 1, blanking motor M 2 quits work, the 4-digit number of group of four figures pipe 19DS2 carries out sudden strain of a muscle with the frequency of 1Hz and shows.
3. the digital display touch type speed setting controller with the full-automatic feeder of protection electric motors function according to claim 1, is characterized in that: zero cross detection circuit (3) is made up of with commutation diode D1-D4, resistance R2-R6, electric capacity C3 and triode Q1-Q2 fracture in single-chip microcomputer (12) U2 mono-18.
4. the digital display touch type speed setting controller with the full-automatic feeder of protection electric motors function according to claim 1, is characterized in that: relay J 1 contact protection circuit (6) is made up of electric capacity C7 and resistance R16.
5. the digital display touch type speed setting controller with the full-automatic feeder of protection electric motors function according to claim 1, is characterized in that: sample circuit (9) is made up of with sample resistance R20, diode D7, stabilivolt DW, electric capacity E3, resistance R22-R23 and optocoupler U6 1 port one 5 of single-chip microcomputer (12) U2.
6. the digital display touch type speed setting controller with the full-automatic feeder of protection electric motors function according to claim 1, is characterized in that: speed governing driver output circuit (6) is made up of with resistance R17-R20, optocoupler U5 and controllable silicon Q11 another 1 port 25 of single-chip microcomputer (12) U2.
7. the digital display touch type speed setting controller with the full-automatic feeder of protection electric motors function according to claim 1, is characterized in that: touch input arranges circuit (10) and is made up of 4 port ones 1,13,16,17 of single-chip microcomputer (12) U2 and touch chip U4, touch-sensitive panel (18) and electric capacity C6.
8. the digital display touch type speed setting controller of full-automatic feeder with protection electric motors function according to claim 1, is characterized in that: display driver circuit (11) by single-chip microcomputer (12) U2 15 port ones-10,19,24,26-28 and resistance R7-R14, triode Q3-Q9, group of four figures pipe (19) DS2, double figures code pipe (20) DS3 and light emitting diode DS4-DS11 form.
9. the digital display touch type speed setting controller of full-automatic feeder with protection electric motors function according to claim 1, is characterized in that: clock circuit (14) is made up of 3 port 20-22 of single-chip microcomputer (12) U2 and clock chip U3, crystal oscillator Y1, electric capacity C4-C5 and rechargeable battery BT1.
10. the digital display touch type speed setting controller with the full-automatic feeder of protection electric motors function according to claim 1, it is characterized in that: described controller is formed by installing wiring board (22) in cabinet (23), cabinet (23) is formed by panel (24) and rear plate (25) connection by upper bottom half, panel (24) and rear plate (25) insert in the draw-in groove of cabinet (23), rear plate (25) is installed connection terminal (9), connection terminal (9) links start-up capacitance (31 respectively, 32), blanking motor M 2 and material casting motor M 1, panel (24) is installed power switch (1), emergency button (17), fuse holder (26), panel (24) adopts translucent plastic sheet, and be printed on functional word, power switch (1), emergency button (17), single-chip microcomputer (12) U2, clock chip U3, touch chip U4, resistance R1-R23, electric capacity C1-C9, E1-E3, diode D1-D7, stabilivolt DW, light emitting diode DS1, DS4-DS12, triode Q1-Q10, controllable silicon Q11, optocoupler U5-U6, integrated package of pressure-stabilizing U1, relay J 1, charactron DS2-DS3, rechargeable battery BT1 mount pad is welded on wiring board (22), and touch-sensitive panel (18) is connected on wiring board (22) by hard wire support, and wiring board (22) is by power switch (1), emergency button (17) be arranged on fuse holder (26) are housed panel (24) on, touch-sensitive panel (18) is facing to panel (24) and after the function Petting Area (29) be close in, light emitting diode DS1, DS12 and DS4-DS11 is respectively facing to material casting status display area (28) and Fumction display district (30) of panel (24), group of four figures pipe (18) DS2 and double figures code pipe (20) DS3 is facing to the numeral method district (27) of panel (24), the output line of wiring board (24) is welded to the welding end of the correspondence being contained in rear plate (25) upper connecting terminal (10), and power lead (33) one end through the welding of rear plate (25) through wires hole on a corresponding position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600660.3A CN104483869A (en) | 2014-10-31 | 2014-10-31 | Automatic feeder digital display touch type speed regulation controller having motor protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600660.3A CN104483869A (en) | 2014-10-31 | 2014-10-31 | Automatic feeder digital display touch type speed regulation controller having motor protection function |
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| CN104483869A true CN104483869A (en) | 2015-04-01 |
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| CN201410600660.3A Pending CN104483869A (en) | 2014-10-31 | 2014-10-31 | Automatic feeder digital display touch type speed regulation controller having motor protection function |
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| CN102787974A (en) * | 2012-07-12 | 2012-11-21 | 上海交通大学 | Fully digital servo driver for AC permanent magnet synchronous motor for wind power generation pitch |
| CN103144937A (en) * | 2013-03-06 | 2013-06-12 | 西安科技大学 | System and method for intelligently monitoring belt-type conveyer for coal mine steel wire rope core |
| CN103929098A (en) * | 2014-04-16 | 2014-07-16 | 江苏恒深洋机械有限公司 | Intelligent digital display stepless speed regulation controller for feeder |
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- 2014-10-31 CN CN201410600660.3A patent/CN104483869A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867343A (en) * | 2010-07-05 | 2010-10-20 | 南京大桥机器有限公司 | Permanent magnet synchronous motor (PMSM) AC servo system |
| JP2012213825A (en) * | 2011-03-31 | 2012-11-08 | Hitachi Koki Co Ltd | Electric power tool and battery unit |
| CN102787974A (en) * | 2012-07-12 | 2012-11-21 | 上海交通大学 | Fully digital servo driver for AC permanent magnet synchronous motor for wind power generation pitch |
| CN103144937A (en) * | 2013-03-06 | 2013-06-12 | 西安科技大学 | System and method for intelligently monitoring belt-type conveyer for coal mine steel wire rope core |
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Application publication date: 20150401 |
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