CN103391042A - Motor driving device capable of avoiding surge current - Google Patents
Motor driving device capable of avoiding surge current Download PDFInfo
- Publication number
- CN103391042A CN103391042A CN2012101420699A CN201210142069A CN103391042A CN 103391042 A CN103391042 A CN 103391042A CN 2012101420699 A CN2012101420699 A CN 2012101420699A CN 201210142069 A CN201210142069 A CN 201210142069A CN 103391042 A CN103391042 A CN 103391042A
- Authority
- CN
- China
- Prior art keywords
- capacitor
- resistor
- input
- directly connects
- electronic switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a motor driving device capable of avoiding a surge current. The motor driving device comprises a resistor, a capacitor, an electronic switch, a rectifier and a driving circuit. The capacitor is connected with the resistor in series. The electronic switch is connected with the resistor in parallel. The rectifier is connected with the resistor and the capacitor in parallel and electrically connected with a power source. The driving circuit is connected with the resistor and the capacitor in parallel and electrically connected with a motor.
Description
Technical field
The invention relates to a kind of electronic installation, and particularly about a kind of motor drive of avoiding burst current.
Background technology
In recent years due to industrial and commercial flourishing, social progress, the product that relatively provides also is purport for convenient, certain, economical and practical, and therefore, the product of current exploitation is also than in the past more progressive, and contributed social.
At motor driver design restriction burst current circuit, be generally necessary, the power supply of general traditional design drops into via resistance cut-off current maximum current limit at a limits value, 10A for example, yet, without soft-start circuit (user's mis-wired), power supply moment drops into burst current and can should be infinitely great up to about 100A(theory)〉10A is more than ten times, and cause drive corruption.
This shows, above-mentioned existing motor driver design, obviously still exist inconvenience and defect, and remain further to be improved.In order to address the above problem, association area is there's no one who doesn't or isn't sought solution painstakingly, but have no for a long time applicable mode always, by development, is completed.Therefore, how can more effectively avoid the impact of burst current, real one of the current important research and development problem that belongs to, also become current association area and need improved target badly.
Summary of the invention
Therefore, a purpose of the present invention is a kind of motor drive of avoiding burst current is provided, to solve the above problems.
According to one embodiment of the invention, a kind of motor drive comprises resistor, capacitor, electronic switch, rectifier and drive circuit.Rectifier has at least one input, one first output and one second output, input electrical connection one power supply of rectifier; Resistor has a first end and one second end, and the first end of resistor directly connects the first output of rectifier; Capacitor has a first end and one second end, the second end of the direct contact resistance device of the first end of capacitor, and the second end of capacitor directly connects the second output of rectifier; The electronic switch resistors in parallel, the first end of a direct contact resistance device of end of electronic switch wherein, the second end of the direct contact resistance device of the other end of electronic switch; Drive circuit has a first input end, one second input and at least one output, the first end of the direct contact resistance device of the first input end of drive circuit, the second input of drive circuit directly connects the second end of capacitor, output electrical connection one motor of drive circuit.
Above-mentioned motor drive also can comprise voltage detector and controller.Voltage detector is in order to the voltage of Detection capacitance device; Controller,, open a way electronic switch during lower than a setting voltage value in order to the voltage when capacitor.
Above-mentioned resistor is not via other capacitor groundings.
The rated capacity of above-mentioned capacitor depends on load.
According to another embodiment of the present invention, a kind of motor drive comprises the first resistor, the first capacitor, the first electronic switch, rectifier, drive circuit and energy regeneration converting unit.One rectifier has at least one input, one first output and one second output, input electrical connection one power supply of rectifier; The first resistor has a first end and one second end, and the first end of the first resistor directly connects the first output of rectifier; The first capacitor has a first end and one second end, the second end of the direct contact resistance device of the first end of the first capacitor, and the second end of the first capacitor directly connects the second output of rectifier; The first electronic switch the first resistor in parallel, wherein an end of the first electronic switch directly connects the first end of the first resistor, and the other end of the first electronic switch directly connects the second end of the first resistor; Drive circuit, have a first input end, one second input and at least one output, the first input end of drive circuit directly connects the first end of the first resistor, the second input of drive circuit directly connects the second end of the first capacitor, output electrical connection one motor of drive circuit; The energy regeneration converting unit has a first input end, one second input and at least one output, the first end of first input end electrical connection first resistor of energy regeneration converting unit, the second end of second input electrical connection the first capacitor of energy regeneration converting unit, the output electrical connection power supply of energy regeneration converting unit.
Motor drive also can comprise the first voltage detector and the first controller.The first voltage detector is in order to detect the voltage of the first capacitor; The first controller is in order to the voltage when the first capacitor during lower than first setting voltage value, with the first electronic switch open circuit.
The first resistor is the ground connection via other capacitors not.
The energy regeneration converting unit can comprise the second resistor, the second capacitor, the second electronic switch and energy regeneration change-over circuit.The second resistor has a first end and one second end, the first end of first end electrical connection first resistor of the second resistor; The second capacitor has a first end and one second end, and the first end of the second capacitor directly connects the second end of the second resistor, the second end of second end electrical connection the first capacitor of the second capacitor; The second electronic switch the second resistor in parallel, wherein an end of the second electronic switch directly connects the first end of the second resistor, and the other end of the second electronic switch directly connects the second end of the second resistor; The energy regeneration change-over circuit has a first input end, one second input and at least one output, the first input end of energy regeneration change-over circuit directly connects the first end of the second resistor, the second input of energy regeneration change-over circuit directly connects the second end of the second capacitor, the output electrical connection power supply of energy regeneration change-over circuit.
The energy regeneration converting unit also can comprise second voltage detector and second controller.The second voltage detector is in order to detect the voltage of the second capacitor; Second controller is in order to the voltage when the second capacitor during lower than second setting voltage value, with the second electronic switch open circuit.
The second above-mentioned resistor is not via other capacitor groundings.
Above-mentioned motor connects a load, and the rated capacity of the first capacitor depends on load.
According to further embodiment of this invention, a kind of motor drive comprises resistor, capacitor, electronic switch, energy regeneration change-over circuit and drive circuit.The energy regeneration change-over circuit has at least one first end, one second end and one the 3rd end, first end electrical connection one power supply of energy regeneration change-over circuit; Resistor has a first end and one second end, and the first end of resistor directly connects the second end of energy regeneration change-over circuit; Capacitor has a first end and one second end, the second end of the direct contact resistance device of the first end of capacitor, and the second end of capacitor directly connects the 3rd end of energy regeneration change-over circuit; The electronic switch resistors in parallel, the first end of a direct contact resistance device of end of electronic switch wherein, the second end of the direct contact resistance device of the other end of electronic switch; Drive circuit has a first input end, one second input and at least one output, the first end of the direct contact resistance device of the first input end of drive circuit, the second input of drive circuit directly connects the second end of capacitor, output electrical connection one motor of drive circuit.
Above-mentioned motor drive also can comprise voltage detector and controller.Voltage detector, in order to the voltage of Detection capacitance device; Controller, is opened a way electronic switch during lower than a setting voltage value in order to the voltage when capacitor.
Above-mentioned resistor is not via other capacitor groundings.
Above-mentioned motor connects a load, and the rated capacity of capacitor depends on load.
In sum, technical scheme of the present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, can reach suitable technological progress, and have the extensive value on industry, it has following advantages at least:
1. use element less, with respect to the conventional start-up circuit design, need not increase element, only need adjusting resistance and the position of the switch can reach the protection of mis-wired; And
2. effectively avoid the impact of burst current.
Below will be explained in detail above-mentioned explanation with execution mode, and technical scheme of the present invention is provided further and explains.
Description of drawings
For above and other purpose of the present invention, feature, advantage and embodiment can be become apparent, appended graphic being described as follows:
Fig. 1 is the circuit diagram according to a kind of motor drive of one embodiment of the invention;
Fig. 2 is the circuit diagram according to a kind of motor drive of another embodiment of the present invention; And
Fig. 3 is the circuit diagram according to a kind of motor drive of further embodiment of this invention.
Wherein, description of reference numerals is as follows:
100: motor drive; 110: rectifier;
111: the first outputs; 112: the second outputs;
113: input; 120: drive circuit;
121: first input end; 122: the second inputs;
123: output; 130: voltage detector;
140: controller; 180: power supply;
190: motor; 192: load;
200: motor drive; 210: rectifier;
220: drive circuit; 221: first input end;
222: the second inputs; 223: output;
230: the first voltage detectors; 240: the first controllers;
250: the energy regeneration converting unit; 251: first input end;
252: the second inputs; 253: output;
260: the energy regeneration change-over circuit; 261: first input end;
262: the second inputs; 263: output;
270: second controller; 272: the second voltage detector;
280: power supply; 290: motor;
292: load; 300: motor drive;
320: drive circuit; 321: first input end;
322: the second inputs; 323: output;
330: voltage detector; 340: controller;
360: the energy regeneration change-over circuit; 361: first end;
362: the second ends; 363: the three ends;
380: power supply; 390: motor;
392: load; 11,21,31,41: first end;
12,22,32,42: the second ends; C1～C2: capacitor;
R1～R2: resistor; S1～S2: electronic switch.
Embodiment
In order to make narration of the present invention more detailed and complete, can be with reference to the appended various embodiment of graphic and the following stated, graphic in identical number represent same or analogous element.On the other hand, well-known element and step are not described in embodiment, to avoid that the present invention is caused unnecessary restriction.
Technical purpose of the present invention is a kind of motor drive, and it can be applicable to the inverter motor driver, or is used in widely relevant sport technique segment.It is worth mentioning that, the motor drive of present technique purpose can be avoided the impact of burst current effectively.Fig. 1～3 of below arranging in pairs or groups illustrate the embodiment of motor drive.
Fig. 1 is the circuit diagram according to a kind of motor drive 100 of one embodiment of the invention.As shown in Figure 1, motor drive 100 comprises resistor R1, capacitor C1, electronic switch S1, rectifier 110 and drive circuit 120.
In Fig. 1, capacitor C1 resistors in series R1, electronic switch S1 resistors in parallel R1.Rectifier 110 and termination resistor R1 and capacitor C1, and electrical connection power supply 180.Drive circuit 120 and resistor R1 and capacitor C1 also connect, and electrical connection motor 190.
With regard to concrete structure, rectifier 110 has the first output 111, the second output 112 and input 113, the input 113 electrical connection power supplys 180 of rectifier 110; Resistor R1 has first end 11 and the second end 12, and the first end 11 of resistor R1 directly connects the first output 111 of rectifier 110; Capacitor C1 has first end 21 and the second end 22, the second end 12 of the first end 21 direct contact resistance device R1 of capacitor C1, and the second end 22 of capacitor C1 directly connects the second output 112 of rectifier 110; Electronic switch S1 resistors in parallel R1, the first end 11 of the direct contact resistance device of the end R1 of electronic switch S1 wherein, the second end 12 of the direct contact resistance device of the other end of electronic switch S1 R1; Drive circuit 120 has first input end 121, the second input 122 and output 123, the first end 11 of the first input end 121 direct contact resistance device R1 of drive circuit 120, the second input 122 of drive circuit 120 directly connects the second end 22 of capacitor C1, the output 123 electrical connection motors 190 of drive circuit 120.
When using, rectifier 110 converts direct current in order to the alternating current I1 with power supply 180, and resistor R1 can be used as current-limiting resistor, and capacitor C1 can be used as filtering capacitor in order to filter the ripple in direct current, then by drive circuit 120 CD-ROM drive motor 190 runnings.In addition, avoided the impact of burst current I2 by the keying of electronic switch S1.
Moreover motor drive 100 comprises voltage detector 130 and controller 140.Structurally, voltage detector 130 electrical connection capacitor C1 and controllers 140, controller 140 electrical connection electronic switch S1.
When using, voltage detector 130 is in order to the voltage of Detection capacitance device C1.During lower than a setting voltage value, controller 140 is in order to open a way electronic switch S1 when the voltage of capacitor C1.By this, when the initial power supply of power supply 180, the voltage of capacitor C1 is lower, electronic switch S1 open circuit, allow electricity via resistor R1 constant charge to capacitor C1.
On implementation, resistor R1 is not via other capacitor groundings.That is to say, rely on single capacitor C1 filtering to get final product, other impedance components that need not to arrange in pairs or groups, use parts number reduced, and avoids somewhat complex design.
In Fig. 1, power supply 180 can be three phase mains, and motor 190 can be three-phase motor, and drive circuit 120 mainly can be consisted of insulated gate bipolar junction transistors and diode., by insulated gate bipolar junction transistors high efficiency and the fast characteristic of switch speed, be able to efficient CD-ROM drive motor 190.
Drive circuit 12 connecting motors 190, motor 190 connects load 192, and the rated capacity of capacitor C1 depends on load 192.On implementation, can determine according to the size of load 192 the concrete numerical value of the rated capacity of capacitor C1.
Fig. 2 is the circuit diagram according to a kind of motor drive 200 of another embodiment of the present invention.As shown in Figure 2, motor drive 200 comprises the first resistor R1, the first capacitor C1, the first electronic switch S1, rectifier 210, drive circuit 220 and energy regeneration converting unit 250.
In Fig. 2, first capacitor C1 series connection the first resistor R1, the first electronic switch S1 the first resistor R1 in parallel.Rectifier 210 also meets the first resistor R1 and the first capacitor C1, and electrical connection power supply 280.Drive circuit 220 also meets the first resistor R1 and the first capacitor C1, and electrical connection motor 190.Energy regeneration converting unit 250 also meets the first resistor R1 and the first capacitor C1, and electrical connection power supply 280.
With regard to concrete structure, rectifier 210 has the first output 211, the second output 212 and input 213, the input electrical connection power supply 280 of rectifier 210; The first end 11 that the first resistor R1 has first end 11 and the second end 12, the first resistor R1 directly connects the first output 111 of rectifier 110; The second end 22 of the second end 12, the first capacitor C1 that the first capacitor C1 has the first end 21 direct contact resistance device R1 of first end 21 and the second end 22, the first capacitor C1 directly connects the second output 112 of rectifier 110; First electronic switch S1 the first resistor R1 in parallel, wherein the end of the first electronic switch S1 other end that directly connects first end 11, the first electronic switch S1 of the first resistor R1 directly connects the second end 12 of the first resistor R1; Drive circuit 220 has first input end 221, the second input 222 and output 223, the first input end 221 of drive circuit 220 directly connects the first end 11 of the first resistor R1, the second input 122 of drive circuit 220 directly connects the second end 12 of the first capacitor R1, the output 223 electrical connection motors 290 of drive circuit 220; Energy regeneration converting unit 250 has first input end 251, the second input 252 and output 253, the first end 11 of the first input end 251 electrical connection first resistor R1 of energy regeneration converting unit 250, the second end 22 of second input 252 electrical connection the first capacitor C1 of energy regeneration converting unit 250, the output 253 electrical connection power supplys 290 of energy regeneration converting unit 250.
When using, rectifier 210 converts direct current in order to the alternating current with power supply 280, and resistor R1 can be used as current-limiting resistor, and capacitor C1 can be used as filtering capacitor in order to filter the ripple in direct current, then by drive circuit 120 CD-ROM drive motor 290 runnings.
Moreover motor drive 200 comprises the first voltage detector 230 and the first controller 240.Structurally, the first voltage detector 230 electrical connection capacitor C1 and controller 240, the first controller 240 electrical connection electronic switch S1.
When using, the first voltage detector 230 is in order to detect the voltage of the first capacitor C1; When the voltage of the first capacitor C1 during lower than first setting voltage value, the first controller 240 is in order to the first electronic switch S1 open circuit.By this, when power supply 180 initial power supply, the voltage of the first capacitor C1 is lower, and electronic switch S1 open circuit, allow electric current via the first resistor R1 constant charge to the first capacitor C1.
On implementation, the first resistor R1 is the ground connection via another capacitor not.That is to say, rely on single the first capacitor C1 filtering to get final product, other impedance components that need not to arrange in pairs or groups, use parts number reduced, and avoids somewhat complex design.
In Fig. 2, power supply 280 can be three phase mains, and motor 290 can be three-phase motor, and drive circuit 220 mainly can be consisted of insulated gate bipolar junction transistors and diode., by insulated gate bipolar junction transistors high efficiency and the fast characteristic of switch speed, be able to efficient CD-ROM drive motor 290.
Energy regeneration converting unit 250 can comprise the second resistor R2, the second capacitor C2, the second electronic switch S2 and energy regeneration change-over circuit 260.Structurally, second capacitor C2 series connection the second resistor R2, wherein the second resistor R2 and the second capacitor C2 and connect rectifier 210.The second electronic switch S2 the second resistor R2 in parallel.Energy regeneration change-over circuit 260 also meets the second resistor R2 and the second capacitor C2, and electrical connection power supply 280.
With regard to concrete structure, the second resistor R2 has the first end 11 of first end 31 electrical connection the first resistor R1 of first end 31 and the second end 41, the second resistor R2; The first end 41 that the second capacitor C2 has first end 41 and the second end 42, the second capacitor C2 directly connects the second end 22 of second end 42 electrical connection the first capacitor C1 of the second end 22, the second capacitor C2 of the second resistor R2; Second electronic switch S2 the second resistor R2 in parallel, wherein the end of the second electronic switch S2 other end that directly connects first end 31, the second electronic switch S2 of the second resistor R2 directly connects the second end 32 of the second resistor R2; Energy regeneration change-over circuit 260 has first input end 261, the second input 262 and output 263, the first input end 261 of energy regeneration change-over circuit 260 directly connects the first end 21 of the second resistor R2,262 second inputs 254 of energy regeneration change-over circuit directly connect the second end 42 of the second capacitor C2, the output 263 electrical connection power supplys 280 of energy regeneration change-over circuit 260.
Moreover energy regeneration converting unit 250 comprises second voltage detector 272 and second controller 270.Structurally, second voltage detector 272 electrical connection capacitor C2 and second controllers 270, second controller 270 electrical connection the second electronic switch S2.
Second voltage detector 272 is in order to detect the voltage of the second capacitor C2; When the voltage of the second capacitor C2 during lower than second setting voltage value, second controller 270 is in order to the second electronic switch S2 open circuit.By this, if burst current is arranged, the burst current path of the second resistor R2 of can flowing through, avoid front stage circuits is impacted.
On implementation, the second resistor R2 is not via another capacitor grounding.That is to say, rely on single capacitor C2 filtering to get final product, other impedance components that need not to arrange in pairs or groups, use parts number reduced, and avoids somewhat complex design.
Energy regeneration change-over circuit 260 mainly can be consisted of insulated gate bipolar junction transistors and diode., by insulated gate bipolar junction transistors high efficiency and the fast characteristic of switch speed, be able to efficient electric power be fed back to power supply 280.
The rated capacity that motor 290 connects load 292, the first capacitor C1 depends on load 292.On implementation, can determine according to the size of load 292 the concrete numerical value of the rated capacity of the first capacitor C1.
Fig. 3 is the circuit diagram according to a kind of motor drive 300 of further embodiment of this invention.As shown in Figure 3, motor drive 300 comprises resistor R1, capacitor C1, electronic switch S1, energy regeneration change-over circuit 360 and drive circuit 320.
In Fig. 3, capacitor C1 resistors in series R1, electronic switch S1 resistors in parallel R1.Energy regeneration change-over circuit 360 and termination resistor R1 and capacitor C1, and electrical connection power supply 380.Drive circuit 320 and resistor R1 and capacitor C1 also connect, and electrical connection motor 390.
With regard to concrete structure, energy regeneration change-over circuit 360 has first end 361, the second end 362 and the 3rd end 363, the first end 361 electrical connection power supplys 380 of energy regeneration change-over circuit 360; Resistor R1 has first end 11 and the second end 12, and the first end 11 of resistor R1 directly connects the second end 362 of energy regeneration change-over circuit 360; Capacitor C1 has first end 21 and the second end 22, the second end 12 of the first end 21 direct contact resistance device R1 of capacitor C1, and the second end 22 of capacitor C1 directly connects the 3rd end 363 of energy regeneration change-over circuit 360; Electronic switch S1 resistors in parallel R1, the first end 11 of the direct contact resistance device of the end R1 of electronic switch S1 wherein, the second end 12 of the direct contact resistance device of the other end of electronic switch S1 R1; Drive circuit 320 has first input end 321, the second input 322 and output 323, the first end 11 of the first input end 321 direct contact resistance device R1 of drive circuit 320, the second input 322 of drive circuit 320 directly connects the second end 22 of capacitor C1, the output 323 electrical connection motors 390 of drive circuit 320.
Moreover motor drive 300 comprises voltage detector 330 and controller 340.Structurally, voltage detector 130 electrical connection capacitor C1 and controllers 340, controller 340 electrical connection electronic switch S1.
When using, voltage detector 330 is in order to the voltage of Detection capacitance device C1.During lower than a setting voltage value, controller 340 is in order to open a way electronic switch S1 when the voltage of capacitor C1.By this, when the initial power supply of power supply 380, the voltage of capacitor C1 is lower, electronic switch S1 open circuit, allow electric current via resistor R1 constant charge to capacitor C1.
On implementation, resistor R1 is not via other capacitor groundings.That is to say, rely on single capacitor C1 filtering to get final product, other impedance components that need not to arrange in pairs or groups, use parts number reduced, and avoids somewhat complex design.
Energy regeneration change-over circuit 360 mainly can be consisted of insulated gate bipolar junction transistors and diode., by insulated gate bipolar junction transistors high efficiency and the fast characteristic of switch speed, be able to efficient electric power be fed back to power supply 380.
Electronic switch S1 as above, S2 can be transistor (as: bipolar junction junction transistor, metal-oxide-semiconductor (MOS) ... Deng) or similar device, those skilled in the art select it when looking elasticity of demand at that time.
Although the present invention discloses as above with execution mode; so it is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking appended the claim person of defining that applies for a patent.
Claims (15)
1. motor drive comprises:
One rectifier, have at least one input, one first output and one second output, input electrical connection one power supply of this rectifier;
One resistor, have a first end and one second end, and the first end of this resistor directly connects the first output of this rectifier;
One capacitor, have a first end and one second end, and the first end of this capacitor directly connects the second end of this resistor, and the second end of this capacitor directly connects the second output of this rectifier;
One electronic switch, this resistor in parallel, wherein an end of this electronic switch directly connects the first end of this resistor, and the other end of this electronic switch directly connects the second end of this resistor; And
One drive circuit, have a first input end, one second input and at least one output, the first input end of this drive circuit directly connects the first end of this resistor, the second input of this drive circuit directly connects the second end of this capacitor, output electrical connection one motor of this drive circuit.
2. motor drive as claimed in claim 1 also comprises:
One voltage detector, in order to detect the voltage of this capacitor; And
One controller, in order to the voltage when this capacitor during lower than a setting voltage value, with this electronic switch open circuit.
3. motor drive as claimed in claim 1, wherein this resistor is not via other capacitor groundings.
4. motor drive as claimed in claim 1, wherein this motor connects a load, and the rated capacity of this capacitor depends on this load.
5. motor drive comprises:
One rectifier, have at least one input, one first output and one second output, input electrical connection one power supply of this rectifier;
One first resistor, have a first end and one second end, and the first end of this first resistor directly connects the first output of this rectifier;
One first capacitor, have a first end and one second end, and the first end of this first capacitor directly connects the second end of this first resistor, and the second end of this first capacitor directly connects the second output of this rectifier;
One first electronic switch, this first resistor in parallel, wherein an end of this first electronic switch directly connects the first end of this first resistor, and the other end of this first electronic switch directly connects the second end of this first resistor;
One drive circuit, have a first input end, one second input and at least one output, the first input end of this drive circuit directly connects the first end of this first resistor, the second input of this drive circuit directly connects the second end of this first capacitor, output electrical connection one motor of this drive circuit; And
One energy regeneration converting unit, have a first input end, one second input and at least one output, the first input end of this energy regeneration converting unit is electrically connected the first end of this first resistor, the second input of this energy regeneration converting unit is electrically connected the second end of this first capacitor, and the output of this energy regeneration converting unit is electrically connected this power supply.
6. motor drive as claimed in claim 5 also comprises:
One first voltage detector, in order to detect the voltage of this first capacitor; And
One first controller, in order to the voltage when this first capacitor during lower than first setting voltage value, with this first electronic switch open circuit.
7. motor drive as claimed in claim 5, wherein this first resistor is not via other capacitor groundings.
8. motor drive as claimed in claim 5, wherein this energy regeneration converting unit comprises:
One second resistor, have a first end and one second end, and the first end of this second resistor is electrically connected the first end of this first resistor;
One second capacitor, have a first end and one second end, and the first end of this second capacitor directly connects the second end of this second resistor, and the second end of this second capacitor is electrically connected the second end of this first capacitor;
One second electronic switch, this second resistor in parallel, wherein an end of this second electronic switch directly connects the first end of this second resistor, and the other end of this second electronic switch directly connects the second end of this second resistor; And
One energy regeneration change-over circuit, have a first input end, one second input and at least one output, the first input end of this energy regeneration change-over circuit directly connects the first end of this second resistor, the second input of this energy regeneration change-over circuit directly connects the second end of this second capacitor, and the output of this energy regeneration change-over circuit is electrically connected this power supply.
9. motor drive as claimed in claim 8, wherein this energy regeneration converting unit also comprises:
One second voltage detector, in order to detect the voltage of this second capacitor; And
One second controller, in order to the voltage when this second capacitor during lower than second setting voltage value, with this second electronic switch open circuit.
10. motor drive as claimed in claim 8, wherein this first resistor is not via another capacitor grounding.
11. motor drive as claimed in claim 5, wherein this motor connects a load, and the rated capacity of this first capacitor depends on this load.
12. a motor drive comprises:
One energy regeneration change-over circuit, have at least one first end, one second end and one the 3rd end, first end electrical connection one power supply of this energy regeneration change-over circuit;
One resistor, have a first end and one second end, and the first end of this resistor directly connects the second end of this energy regeneration change-over circuit;
One capacitor, have a first end and one second end, and the first end of this capacitor directly connects the second end of this resistor, and the second end of this capacitor directly connects the 3rd end of this energy regeneration change-over circuit;
One electronic switch, this resistor in parallel, wherein an end of this electronic switch directly connects the first end of this resistor, and the other end of this electronic switch directly connects the second end of this this resistor; And
One drive circuit, have a first input end, one second input and at least one output, the first input end of this drive circuit directly connects the first end of this resistor, the second input of this drive circuit directly connects the second end of this capacitor, output electrical connection one motor of this drive circuit.
13. motor drive as claimed in claim 12 also comprises:
One voltage detector, in order to detect the voltage of this capacitor; And
One controller, in order to the voltage when this capacitor during lower than a setting voltage value, with this electronic switch open circuit.
14. motor drive as claimed in claim 12, wherein this resistor is not via other capacitor groundings.
15. motor drive as claimed in claim 12, wherein this motor connects a load, and the rated capacity of this capacitor depends on this load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101420699A CN103391042A (en) | 2012-05-09 | 2012-05-09 | Motor driving device capable of avoiding surge current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101420699A CN103391042A (en) | 2012-05-09 | 2012-05-09 | Motor driving device capable of avoiding surge current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103391042A true CN103391042A (en) | 2013-11-13 |
Family
ID=49535220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101420699A Pending CN103391042A (en) | 2012-05-09 | 2012-05-09 | Motor driving device capable of avoiding surge current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103391042A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024617A (en) * | 2014-04-16 | 2015-11-04 | 佛山市建准电子有限公司 | Motor control circuit |
| CN107994781A (en) * | 2017-12-25 | 2018-05-04 | 西安西驰电气股份有限公司 | A kind of converter plant and its control method |
| WO2021098311A1 (en) * | 2019-11-20 | 2021-05-27 | 南京埃斯顿自动化股份有限公司 | Dynamic braking circuit for electric motor, and dynamic braking method for electric motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW522623B (en) * | 2001-06-13 | 2003-03-01 | Delta Electronics Inc | Inrush current protection circuit |
| US20060132105A1 (en) * | 2004-12-16 | 2006-06-22 | Prasad Atluri R | Controlling inrush current |
| CN101268597A (en) * | 2005-06-03 | 2008-09-17 | 雅达电子国际有限公司 | Active inrush current control using a relay for AC to DC converters |
| CN201577051U (en) * | 2009-11-19 | 2010-09-08 | 中山大洋电机股份有限公司 | Soft start module and motor controller starter using the same |
| CN101917020A (en) * | 2010-08-04 | 2010-12-15 | 长沙理工大学 | Lift energy feedback, reactive compensation and switched-off emergency running method and system |
-
2012
- 2012-05-09 CN CN2012101420699A patent/CN103391042A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW522623B (en) * | 2001-06-13 | 2003-03-01 | Delta Electronics Inc | Inrush current protection circuit |
| US20060132105A1 (en) * | 2004-12-16 | 2006-06-22 | Prasad Atluri R | Controlling inrush current |
| CN101268597A (en) * | 2005-06-03 | 2008-09-17 | 雅达电子国际有限公司 | Active inrush current control using a relay for AC to DC converters |
| CN201577051U (en) * | 2009-11-19 | 2010-09-08 | 中山大洋电机股份有限公司 | Soft start module and motor controller starter using the same |
| CN101917020A (en) * | 2010-08-04 | 2010-12-15 | 长沙理工大学 | Lift energy feedback, reactive compensation and switched-off emergency running method and system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024617A (en) * | 2014-04-16 | 2015-11-04 | 佛山市建准电子有限公司 | Motor control circuit |
| CN110247614A (en) * | 2014-04-16 | 2019-09-17 | 佛山市建准电子有限公司 | Circuit for controlling motor |
| CN110247614B (en) * | 2014-04-16 | 2021-05-11 | 北海建准电子有限公司 | Motor control circuit |
| CN107994781A (en) * | 2017-12-25 | 2018-05-04 | 西安西驰电气股份有限公司 | A kind of converter plant and its control method |
| CN107994781B (en) * | 2017-12-25 | 2019-11-15 | 西安西驰电气股份有限公司 | A kind of converter plant and its control method |
| WO2021098311A1 (en) * | 2019-11-20 | 2021-05-27 | 南京埃斯顿自动化股份有限公司 | Dynamic braking circuit for electric motor, and dynamic braking method for electric motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102201666B (en) | Control circuit and use the electric machine of this control circuit | |
| CN104333215B (en) | A kind of method and device for inhibiting inverter frequent start-stop | |
| CN203537223U (en) | Bootstrap-supply MOSFET/IGBT driver circuit having negative voltage | |
| CN103219878A (en) | Capacitor discharging circuit and power converter | |
| TWI450491B (en) | Motor driving device for protecting inrush current | |
| CN103532356A (en) | Bootstrap-supply MOSFET (metal oxide semiconductor field effect transistor)/IGBT (insulated gate bipolar translator) driver circuit having negative voltage | |
| CN103328987A (en) | Polarity detection circuit | |
| CN102201742A (en) | Power supply circuit, motor device and fan | |
| CN203674694U (en) | Cycle-by-cycle current-limiting protection circuit for variable-frequency drive | |
| CN106645893A (en) | Charge pump and voltage detection circuit thereof | |
| CN106253234B (en) | Inverter control circuit | |
| CN103391042A (en) | Motor driving device capable of avoiding surge current | |
| CN102843049B (en) | Rectifier voltage regulator for motorcycles | |
| CN110022055A (en) | Progress control method, device, circuit, household appliance and computer storage medium | |
| CN108667316A (en) | Ac-input type Switching Power Supply | |
| CN112769102A (en) | Photovoltaic inverter and direct current bus capacitor protection circuit thereof | |
| CN207009368U (en) | A kind of new resistance-capacitance depressurization and relay drive circuit | |
| CN203944975U (en) | For the open-phase protection circuit of inverter type welder | |
| CN203135735U (en) | Continuous current plant | |
| CN205245462U (en) | Variable frequency air conditioner compressor controlling means | |
| CN114400913A (en) | Photovoltaic inverter and photovoltaic grid-connected inverter system applying same | |
| CN103124145A (en) | Three-phase rectifying device | |
| CN102201767A (en) | Motor device and fan using same | |
| CN204559515U (en) | Big-power solar battery simulator | |
| CN206349952U (en) | Inexpensive brushless motor booster circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131113 |