CN101266865B

CN101266865B - Magnetic force control device for electric magnetic disk

Info

Publication number: CN101266865B
Application number: CN2007100868423A
Authority: CN
Inventors: 廖禄荣
Original assignee: Holding Electric Co Ltd
Current assignee: Holding Electric Co Ltd
Priority date: 2007-03-14
Filing date: 2007-03-14
Publication date: 2010-08-18
Anticipated expiration: 2027-03-14
Also published as: CN101266865A

Abstract

A magnetic force control device of a permanent electromagnetic disc is disclosed, which can be electrically connected with a plurality of electromagnetic discs, each electromagnetic disc is provided a power source end group to receive a drive voltage output by the control device and to set the control device in a charge magnetism state so that each electromagnetic disc orderly generate distribution of magnetic line of force with equivalent intensity along with the time; in the time sequence interval that each power source end group receives the next drive voltage, induction magnetic field on each group of electric sector block can still be maintained, as a result, the control device can achieve the properties that the permanent electromagnetic disc continuously supplies the magnetic force, without needing to maintain the power output to each electromagnetic disc all the time.

Description

The magnetic force control device of electromagnetic disc

Technical field

The present invention is relevant with control device, is meant a kind of circuit control device that distributes in order to magnetic force on the control permanent type electromagnetic disc especially.

Background technology

General magnechuck is mainly in order to produce magnetic force absorption Magnetic Induction assembly, therefore be provided as any workpiece that a firm workbench is constituted with the fixed magnetic inductive component, as be applied to surface grinding machine in the machining, or the Physical Experiment platform in the laboratory equipment etc., the applied magnetic force control switch of this type of magnechuck is many can the electronic circuit control mode, be effective reach to fill taken off the magnetic effect, as the inventor in No. the 141363rd, TaiWan, China patent announcement disclosed " transformation and frequency conversion fill automatically demagnetization device ", for being reached, magnechuck takes off the magnetic effect rapidly fully, and the inventor is in addition in No. the 167629th, TaiWan, China patent announcement disclosed " demagnetization device magnetizes ", for having Auto-Sensing and compensating the effect of magnetic force; Right operating power owing to above-mentioned magnechuck is mainly by the induction coil in the circuit arrangement driving magnechuck, make it corresponding and produce specific and enough induced magnetisms to be distributed on the workbench, could effectively workpiece to be adsorbed be stable in workbench, so for the employed magnechuck of large-area workbench, the output loading of circuit arrangement corresponding to the induction coil in the magnechuck, it often is high-power electric current and voltage running, especially in the time need utilizing a plurality of workbench simultaneously in single machine works or the laboratory, all indivedual corresponding circuit arrangements all start running down, are quite high power load in fact for machine works or breadboard whole power-supply system.

Even if just like No. the 412046th, TaiWan, China patent announcement disclosed " tool safeguard protection fill demagnetization device "; provide to reduce the resistance setting of the required correspondence of solenoid; thereby reduce the demagnetization device that fills of power consumption; right this kind improvement of circuit structure is with respect to the electric current and voltage running of whole magnechuck inner inductive coil; actually very it is little in its power dissipation that can reduce, moreover also can't avoid the shortcoming of above-mentioned high power load when a plurality of workbenches are enabled simultaneously.

Summary of the invention

The object of the present invention is to provide a kind of magnetic force control device, can reduce on the magnechuck the corresponding circuit power consumption that produces, and can control the running of most permanent type electromagnetic disc simultaneously, effectively reduce the power load.

For achieving the above object, magnetic force control device provided by the invention has a switch terminal group and most power take-off groups, starts this switch terminal group and can make those power take-off groups export a driving voltage respectively at different time, includes:

One controller, have an input group, an induction end group, one first and one second sequencing control end group, this input group produces one first or one second drive signal corresponding to the switching state of this switch terminal group in this induction end group correspondence, in time dependent one first control signal of the corresponding generation of this first sequencing control end group, in time dependent one second control signal of the corresponding generation of this second sequencing control end group;

One circuits for triggering electrically connect the first sequencing control end group of this controller, export a triggering signal in time in regular turn corresponding to this first control signal;

One modulation circuit electrically connects the second sequencing control end group of this controller, exports a step-down signal in time in regular turn corresponding to this second control signal; And,

Most first and second transformers, respectively this power take-off group electrically connects at least one this first and second transformer, this first drive signal cooperates this triggering signal to make the running of conducting in regular turn respectively of those first transformers, and those power take-off groups are exported identical electrical driving voltage in regular turn respectively at different time, this second drive signal cooperates this triggering signal to make the running of conducting in regular turn respectively of those first and second transformers, this modulation circuit alternately electrically conducts with this first and second transformer in time, and respectively this power take-off group is exported the driving voltage of positive and negative alternate in time, and this step-down signal makes respectively that this power take-off group reduces the driving voltage of being exported in time.

Described control device, wherein, this input group electrically connects two switch modules, and conducting is corresponding respectively this first and second drive signal that produces of this switch module respectively.

Described control device, wherein, this switch terminal group electrically connects two light-emitting diodes, and conducting respectively this light-emitting diode shows the luminance of this light-emitting diode corresponding to this switch terminal group.

Described control device, wherein, respectively this switch module is a photistor, the light that corresponding respectively this light-emitting diode is sent and conducting.

Described control device wherein, also has a pulse-generating circuit, electrically connects this controller, in order to control the frequency of this first and second control signal.

Described control device wherein, also has one and adjusts the end group, electrically connects this pulse-generating circuit, and this adjustment end group can be adjusted the frequency of this first control signal.

Described control device, wherein, these circuits for triggering have most relays, and respectively the start of this relay is promptly corresponding to the generation of this triggering signal.

Described control device, wherein, respectively this relay electrically connects a transistor, and those transistors electrically connect this first sequencing control end group, and conducting respectively this transistor then makes the corresponding relay that connects obtain electrical potential energy.

Described control device, wherein, respectively this relay has an induction end and two trigger ends, this induction end electrically connects respectively this transistor, this induction end obtains electrical potential energy and promptly produces kinetic energy to send triggering signal, corresponding respectively this first and second transformer that electrically connects of this two trigger end in this two trigger end.

Described control device, wherein, this modulation circuit has most transistors, and the corresponding conducting of this second control signal is this transistor respectively, and respectively this transistorized conducting electric current is the respectively conducting electric current of this first and second transformer.

Described control device, wherein, this second sequencing control end group has four signal pins, and this modulation circuit has a binary decoder, and this binary decoder electrically connects this second sequencing control end group and those transistor.

Described control device, wherein, respectively this transistor electrically connects a load resistance, respectively the resistance value of this load resistance is different, this second control signal conducting in regular turn is this transistor respectively, and conducting in proper order by the resistance value of the load resistance that connects of correspondence by little to big.

Described control device wherein, also has one and adjusts the end group, electrically connects a variable resistor, and this variable resistor electrically connects those first and second transformers, and this adjustment end group can be adjusted the respectively conducting electric current of this first and second transformer.

Described control device, wherein, those first and second transformers electrically connect a junction transistor, and this variable resistor is in order to adjust the channel current size of this junction transistor.

Described control device, wherein, this induction end group electrically connects one first and one transistor seconds, this the first transistor electrically connects those first transformers, this transistor seconds electrically connects those second transformers, this first drive signal makes this first transistor conducting running, and this second drive signal makes the alternate conduction running in time of this first and second transistor.

Described control device wherein, also has most rectification circuits, electrically connects respectively this power take-off group respectively, and the second siding ring of this first and second transformer that is electrically connected with this power take-off group respectively is located in this rectification circuit.

Described control device, wherein, respectively this rectification circuit is provided with two thyristors, respectively the lock end of this thyristor and the respectively second siding ring electric connection of this first and second transformer.

Described control device, wherein, also have a display driver chip and a display floater, this display driver chip electrically connects this display floater, this controller and this power take-off group respectively, and this display floater can show the electric current that this power take-off group is respectively exported.

A kind of magnetic force control module provided by the invention includes:

A most electromagnetic disc, respectively this electromagnetic disc definition has most adsorption zones, this electromagnetic disc has a power end group and reaches and the individual induction coils of the majority of the corresponding setting of those adsorption zones and most magnet assemblies, respectively this induction coil electrically connects this power end group, this power end group makes those magnet assemblies produce electromagnetic induction in order to receive driving voltage to drive those induction coils, and respectively this magnet assembly is formed with specific magnetic line of force distribution on pairing this adsorption zone; And,

One control device, has one drive circuit, one circuits for triggering, one modulation circuit, most first and second transformers, those first and second transformers see through this drive circuit and this modulation circuit electrically connects, these circuits for triggering electrically conduct for changing in time in regular turn with this first and second transformer respectively, respectively the power end group of this electromagnetic disc electrically connects at least one this first and second transformer, when this drive circuit and those first transformers electrically conduct, respectively this first transformer conducting in regular turn in time running, and the power end group of those electromagnetic disc is exported identical electrical driving voltage in regular turn respectively at different time, making those electromagnetic disc produce the suitable magnetic line of force of intensity respectively in time in regular turn on this adsorption zone distributes, when changing alternately in time, this drive circuit and those first and second transformers electrically conduct, respectively this first and second transformer conducting in regular turn in time running, this modulation circuit makes respectively this first and second transformer of conducting reduce its operating voltage in time in regular turn, and respectively this power end group is exported the driving voltage of positive and negative alternate and minimizing in time, and the magnetic line of force intensity of the adsorption zone of each those electromagnetic disc is weakened in time in regular turn.

Described magnetic force control module, wherein, respectively this electromagnetic disc has most electric fan blocks, and respectively this electric fan block surface forms this adsorption zone, and respectively this electric fan block is provided with this magnet assembly.

Described magnetic force control module, wherein, respectively this magnet assembly is wound with this induction coil, and those induction coils of this electromagnetic disc are parallel to this power end group.

Described magnetic force control module, wherein, respectively this magnet assembly is made for having ferromagnetic material.

Described magnetic force control module, wherein, respectively this magnet assembly is that rare earth element is made.

In other words, magnetic force control module provided by the invention, include most electromagnetic disc and a control device, respectively this electromagnetic disc is constituted by the electric fan block of a plurality of same structures, and be provided with a power end group and with most induction coils of its electric connection, driving those induction coils can make most permanent magnetism assemblies produce electromagnetic induction, and the permanent magnetism component groups of adjacent setting becomes the effective magnetic field that the specific magnetic line of force distributes, and keeps the specific magnetic line of force and distribute on the adsorption zone on this electric fan block surface; This control device has a controller, one drive circuit, one circuits for triggering, one modulation circuit, most first and second transformers, this controller has an input group one induction end group, one first and one second sequencing control end group, this input group produces one first or one second drive signal corresponding to the switching state of this switch terminal group in this induction end group correspondence, in time dependent one first control signal of the corresponding generation of this first sequencing control end group, in time dependent one second control signal of the corresponding generation of this second sequencing control end group, these circuits for triggering are exported a triggering signal in time in regular turn corresponding to this first control signal, this modulation circuit is exported a step-down signal in time in regular turn corresponding to this second control signal, and respectively this power end group electrically connects at least one this first and second transformer; When this drive circuit and those first transformers electrically conduct, respectively this first transformer conducting in regular turn in time running, and those power end groups are exported identical electrical driving voltage in regular turn respectively at different time, making those electromagnetic disc produce the suitable magnetic line of force of intensity in regular turn in time on its adsorption zone distributes, when changing alternately in time, this drive circuit and those first and second transformers electrically conduct, respectively this first and second transformer conducting in regular turn in time running, this modulation circuit makes respectively this first and second transformer of conducting reduce its operating voltage in time in regular turn, and respectively this power end group is exported the driving voltage of positive and negative alternate and minimizing in time, and the magnetic line of force intensity of adsorption zone on this electromagnetic disc is respectively weakened in time in regular turn.

Description of drawings

Fig. 1 is the device schematic diagram of most preferred embodiment provided by the present invention;

Fig. 2 is the circuit block diagram of control device that above-mentioned most preferred embodiment provides;

Fig. 3 is the circuit diagram of control device that above-mentioned most preferred embodiment provides;

Fig. 4 is the structural representation of electromagnetic disc that above-mentioned most preferred embodiment provides.

Embodiment

Below, cooperate some accompanying drawings to enumerate a preferred embodiment, in order to composition member of the present invention and effect are described further.

See also as shown in Figure 1, be the magnetic force control module 1 that most preferred embodiment of the present invention provided, have a control device 2 and most electromagnetic disc 3, this control device 2 is provided with one and adjusts end group 201, one switch terminal group 202 and most power take-off groups 203, and constituted by Circuits System as shown in Figure 2, include a controller 10, one switching circuit 20, one pulse-generating circuit 30, one circuits for triggering 40, one modulation circuit 50, one drive circuit 60, one power output circuit 70 and a display circuit 80, respectively this electromagnetic disc 3 is constituted by the electric fan block 90 of a plurality of same structures, and respectively this power take-off group 203 that is provided with a power end group 91 and this control device 2 electrically connects, wherein:

Please cooperate Fig. 2, the microcomputerized control chip IC 1 that this controller 10 is made for integrated circuit, have an input group 11 and electrically connect this switching circuit 20, this pulse-generating circuit 30 of a frequency control terminal group 12 electric connections, these circuits for triggering 40 of one first sequencing control end group, 13 electric connections, this modulation circuit 50 of one second sequencing control end group, 14 electric connections, an induction end group 15 these drive circuits 60 of electric connection, and one shows control end group 16 these display circuits 80 of electric connection.

See also shown in Figure 3, this switching circuit 20 has one and switches switch SW, two light-emitting diode D21, D22 and two photistor L21, L22, diverter switch SW correspondence is arranged in switch terminal group 202 set on this control device 2, may command respectively this light-emitting diode D21 or D22 conducting or end, thereby trigger the conducting of this photistor L21 or L22 indirectly or end, this two photistor L21, the output of L22 corresponds respectively to the binary signal pin position 11a of these controller 10 input groups 11,11b, and can make this controller 10 produce one first or one second drive signal respectively in this induction end group 15; Wherein cooperate two photistor L21, L22 to trigger the design of this input group 11 with this two light-emitting diode D21, D22, can be applied to the luminous demonstration of this switch terminal group 202 simultaneously, and by the photoinduction trigger characteristic of this two photistor L21, L22, accurately grasp the triggering and conducting of this binary signal pin position 11a, 11b, rest switch assembly even single diode also can be reached this diverter switch of induction SW in the function of various switching states certainly.

This pulse-generating circuit 30 is a pulse width modulation circuit PWM of these controller 10 required certain pulses frequencies of supply, therefore this first and second sequencing control end group 13 is provided, 14 produce one first and one second control signal of characteristic frequency, and correspondence is arranged in adjustment end group 201 set on this control device 2, with this adjustment end group 201 to adjust the frequency of this first control signal, certainly pulse width modulation circuit can also integrated technique in this controller 10, direct and this first and second sequencing control end group electrically connects, and makes this controller itself promptly have the function that produces first and 1 second control signal corresponding to this input group.

These circuits for triggering 40 are in order to touch the control circuit structure of relay, include four signal pin 13a with this first sequencing control end group 13,13b, 13c, 13d the corresponding respectively transistor Q41 who establishes that connects, Q42, Q43, a Q44 and a magnetic inductive relay R Y1, RY2, RY3, RY4, as arbitrary this transistor Q41, Q42, Q43, when the control grid of Q44 obtains the accurate position of conducting that this first sequencing control end group 13 sent, out of the ordinary with corresponding this magnetic inductive relay R Y1, RY2, RY3, (solenoid of relay induction end is positioned at this circuits for triggering 40 to RY4, two open-circuit structures of relay trigger end are positioned at this drive circuit 60) then begin start, therefore can change in time and send a triggering signal, make to be arranged in respectively this relay R Y1 of this drive circuit 60 to this drive circuit 60, RY2, RY3, the trigger end of RY4 is electrically short circuit in regular turn.

This modulation circuit 50 is for to discharge and recharge the time in order to the RC that adjusts this drive circuit 60, include four signal pin 14a with this second sequencing control end group 14,14b, 14c, 14d a corresponding binary decoder IC3 and the transistor group IC4 who establishes that connect, second control signal that this binary decoder IC3 system is sent this second sequencing control end group 14 be converted to can be one by one to each transistorized gate switching signal in should transistor group IC4, each transistor meets a load resistance R1 who establishes among this transistor group IC4, R2, R3, R4, R5, R6, R7, be designed to the specific resistance value that increases progressively between the R8, so when this second control signal makes each transistor sequential start conducting among this transistor group IC4, produce specific discharging and recharging the time of increasing progressively corresponding to 60 of this drive circuits, therefore can form and act on this power output circuit 70 a step-down signal that successively decreases is in time arranged.

This drive circuit 60 includes a variable resistor RT, one junction transistor UJT, two photistor L61, L62 and with this relay R Y1 respectively, RY2, RY3, RY4 two trigger ends meet the one first transformer PT1 that establishes respectively, PT2, PT3, PT4 and one second transformer PT1 ', PT2 ', PT3 ', PT4 ', when the signal pin 11a of this input group 11 conducting, 15 corresponding first drive signals that produce of this induction end group then make signal pin 15a export with high levle, with this photistor of conducting L61, when the signal pin 11b of this input group 11 conducting, 15 corresponding second drive signals that produce of this induction end group then make binary signal pin position 15a, 15b switching in turn exports with high levle, distinguished corresponding photistor L61 with conducting, L62, switching frequency is also controlled by this pulse-generating circuit 30; Therefore work as this first or second drive signal and make specific photistor L61, during the L62 conducting, cooperate the path that discharges and recharges that this modulation circuit 50 provided, then can be by the relay R Y1 of 40 certain trigger of these circuits for triggering, RY2, RY3, RY4 makes corresponding transformer PT1, PT1 ', PT2, PT2 ', PT3, PT3 ', PT4, the first siding ring conducting running of PT4 ', the conducting size of current also can be by this variable resistor of control RT to adjust, this variable resistor RT is arranged in adjustment end group 201 set on this control device 2 for correspondence, in the present embodiment since this junction transistor UJT be the unipolarity junction transistor, therefore change the emitter current of this unipolarity junction transistor, can change its channel current size, to reach the purpose of the operating current of controlling this drive circuit 60.

This power output circuit 70 is and those power take-off group 203 corresponding majority rectification circuits 71,72,73,74, comprising having and this transformer PT1 respectively, PT1 ', PT2, PT2 ', PT3, PT3 ', PT4, the thyristor SCR1 that PT4 ' electrically connects respectively, SCR2, SCR3, SCR4, SCR5, SCR6, SCR7, SCR8, with this rectification circuit 71 is example, as arbitrary this transformer PT1, during PT1 ' conducting running, the induced current of its second siding ring promptly triggers institute to should thyristor SCR1, the lock end of SCR2, therefore control AC power in specific phase place rectification conducting and export this power take-off group 203 to, make the power end group 91 of this electromagnetic disc 3 obtain specific time sequence and stable driving voltages.

This display circuit 80 includes a display driver chip IC5 and a display floater 81, this display floater 81 electrically connects this chip for driving IC5 and is illustrated in figure 1 as and exposes on this control device 2, this chip for driving IC5 electrically connects those rectification circuits 71,72,73,74 pairing power take-off groups 203 and this controller 10 show each signal pin 16a of control end group 16,16b, 16c, 16d, by each signal pin 16a, 16b, 16c, 16d responds to the transformer PT1 of 60 conducting runnings of this drive circuit, PT1 ', PT2, PT2 ', PT3, PT3 ', PT4, PT4 ' can make this chip for driving IC5 drive this display floater 81 and show respectively this rectification circuit 71 with correspondence, 72,73,74 output current size.

Please cooperate Fig. 4, respectively each electric fan block 90 of this electromagnetic disc 3 is made up of an induction coil 93 of a permanent magnetism assembly 92 and winding on permanent magnetism assembly 92, respectively these electric fan block 90 surfaces are formed with an adsorption zone 901 and can place with to be processed for any magnetic induction assembly, respectively this permanent magnetism assembly 92 is as iron, cobalt, it is made that nickel etc. have ferromagnetic material, respectively this induction coil 93 is for being parallel to this power end group 91, therefore behind the driving voltage that respectively this induction coil 93 obtains to be exported by the power take-off group 203 of correspondence through this power end group 91, the induced field of adjacent respectively this permanent magnetism assembly 92 then consists of the effective magnetic field that the specific magnetic line of force distributes, can on those adsorption zones 901, keep simultaneously the specific magnetic line of force and distribute, though after the driving power of those induction coils 93 is removed respectively the hysteresis characteristic of this permanent magnetism assembly 92 magnetic line of force intensity required on the adsorption zone 901 still can be provided; If cooperate the B-H loop characteristic of those permanent magnetism assemblies 92, when respectively this induction coil 93 obtains the driving voltage of positive and negative alternate variation and minimizing, can weaken the clean magnetic field that those permanent magnetism assemblies 92 produce gradually, weaken gradually simultaneously and remove magnetic line of force intensity distributions on those adsorption zones 901.

Therefore the handover operation that cooperates this switch terminal group 203, the side circuit running of this control device 2 promptly has following two kinds of operating states:

When the signal pin 11a of this this input group 11 of switching circuit 20 conductings, these induction end group 15 corresponding first drive signals that produce make this photistor of signal pin 15a conducting L61, these first sequencing control end group, 13 corresponding generations first control signal to this circuits for triggering 40, make those first transformers PT1, PT2, PT3, the PT4 running of conducting in regular turn respectively, with with this rectification circuit 71 respectively in this power output circuit 70,72,73,74 thyristor SCR1, SCR3, SCR5, SCR7 conducting in regular turn respectively, therefore with the AC power rectification fixed positive voltage with frequency change, export pairing power take-off group 203 to, 91 of those power end groups can be exported identical driving voltage in regular turn respectively at different time, making respectively this electromagnetic disc 3 produce the induced magnetism line of force in time in regular turn is distributed on those adsorption zones 901, because the frequency of this this first control signal of pulse-generating circuit 30 may command, therefore adjust adjustment end group 201 set on this control device 2 and can change the time interval that drives induced field, make to cooperate the hysteresis characteristic of those permanent magnetism assemblies 92 then can in frequency interval, still on those adsorption zones 901, keep required magnetic line of force intensity.

When the signal pin 11b of this this input group 11 of switching circuit 20 conductings, these induction end group 15 corresponding second drive signals that produce make binary signal pin position 15a, 15b takes turns switched conductive and distinguishes corresponding photistor L61, L62, this first and second sequencing

control end group

13,14 corresponding respectively first and second control signals of generation are respectively to these circuits for triggering 40 and modulation circuit 50, make those first transformers PT1, PT2, PT3, PT4 is the switched conductive running when this photistor L61 conducting, simultaneously can corresponding conducting this thyristor SCR1 respectively, SCR3, SCR5, SCR7, those second transformers PT1 ', PT2 ', PT3 ', PT4 ' is the switched conductive running when this photistor L62 conducting, simultaneously can corresponding conducting this thyristor SCR2 respectively, SCR4, SCR6, SCR8, thereby respectively this power take-off group 203 is exported the driving voltage of positive and negative alternate in time, add second control signal and control each transistor sequential start conducting among the transistor group IC4 of this modulation circuit 50, make this drive circuit 60 prolong circuit in time gradually and discharge and recharge the time, so make respectively this transformer PT1, PT1 ', PT2, PT2 ', PT3, PT3 ', PT4, PT4 ' reduces the thyristor SCR1 of conducting correspondence in time gradually, SCR2, SCR3, SCR4, SCR5, SCR6, SCR7, the time of SCR8, thereby respectively this power take-off group 203 is exported the driving voltage of positive and negative alternate and minimizing in time, and the magnetic line of force intensity of adsorption zone 901 on this electromagnetic disc 3 is respectively weakened and cancellation in time in regular turn.

Comprehensive above-mentioned discussion as can be known, this magnetic force control module 1 provided by the present invention is than the maximum difference of known technology, when the switch terminal group 203 of this control device 2 in the state that magnetizes, can making respectively, the electric fan block 90 of this electromagnetic disc 3 produces the suitable magnetic force of intensity in time in regular turn, and respectively this power end group 91 is in the sequential interval of the next driving voltage of output, still can keep its induced field characteristic on each electric fan block 90, so reach the characteristic that the permanent type electromagnetic disc continues supply magnetic force, and this control device 2 replaces the extremely respectively induction coil 93 of this electromagnetic disc 3 of outputting drive voltage in the sequencing control mode, and needn't keep always those whole electromagnetic disc 3 there is power output, makes this magnetic force control module 1 more effective saving power consumption of control mode of commonly using the driving electromagnetic disc; As for when workpiece to be adsorbed need account for more large-area working face, only need to add the electric fan block 90 of requirement in this electromagnetic disc 3 respectively, then with the induction coil 93 and these power end group 91 in parallel getting final product of the electric fan block 90 that adds, then can make the best efficient of this magnetic force control module 1 performance, more can effectively avoid unnecessary power dissipation.

The above only is a preferable possible embodiments of the present invention, changes so use the equivalent structure that specification of the present invention and claim scope do such as, ought to be included in the claim scope of the present invention.

Claims

1. the magnetic force control device of an electromagnetic disc has a switch terminal group and most power take-off groups, starts this switch terminal group and can make those power take-off groups export a driving voltage respectively at different time, includes:

2. according to the described control device of claim 1, wherein, this input group electrically connects two switch modules, and conducting is corresponding respectively this first and second drive signal that produces of this switch module respectively.

3. according to the described control device of claim 2, wherein, this switch terminal group electrically connects two light-emitting diodes, and conducting respectively this light-emitting diode shows the luminance of this light-emitting diode corresponding to this switch terminal group.

4. according to the described control device of claim 3, wherein, respectively this switch module is a photistor, the light that corresponding respectively this light-emitting diode is sent and conducting.

5. according to the described control device of claim 1, wherein, also have a pulse-generating circuit, electrically connect this controller, in order to control the frequency of this first and second control signal.

6. according to the described control device of claim 5, wherein, also have one and adjust the end group, electrically connect this pulse-generating circuit, this adjustment end group can be adjusted the frequency of this first control signal.

7. according to the described control device of claim 1, wherein, these circuits for triggering have most relays, and respectively the start of this relay is promptly corresponding to the generation of this triggering signal.

8. according to the described control device of claim 7, wherein, respectively this relay electrically connects a transistor, and those transistors electrically connect this first sequencing control end group, and conducting respectively this transistor then makes the corresponding relay that connects obtain electrical potential energy.

9. according to the described control device of claim 8, wherein, respectively this relay has an induction end and two trigger ends, this induction end electrically connects respectively this transistor, this induction end obtains electrical potential energy and promptly produces kinetic energy to send triggering signal, corresponding respectively this first and second transformer that electrically connects of this two trigger end in this two trigger end.

10. according to the described control device of claim 1, wherein, this modulation circuit has most transistors, and the corresponding conducting of this second control signal is this transistor respectively, and respectively this transistorized conducting electric current is the respectively conducting electric current of this first and second transformer.

11. according to the described control device of claim 10, wherein, this second sequencing control end group has four signal pins, this modulation circuit has a binary decoder, and this binary decoder electrically connects this second sequencing control end group and those transistor.

12. according to the described control device of claim 10, wherein, respectively this transistor electrically connects a load resistance, and respectively the resistance value of this load resistance is different, this second control signal conducting in regular turn is this transistor respectively, and conducting in proper order by the resistance value of the load resistance that connects of correspondence by little to big.

13. according to the described control device of claim 1, wherein, also have one and adjust the end group, electrically connect a variable resistor, this variable resistor electrically connects those first and second transformers, and this adjustment end group can be adjusted the respectively conducting electric current of this first and second transformer.

14. according to the described control device of claim 13, wherein, those first and second transformers electrically connect a junction transistor, this variable resistor is in order to adjust the channel current size of this junction transistor.

15. according to the described control device of claim 1, wherein, this induction end group electrically connects one first and one transistor seconds, this the first transistor electrically connects those first transformers, this transistor seconds electrically connects those second transformers, this first drive signal makes this first transistor conducting running, and this second drive signal makes the alternate conduction running in time of this first and second transistor.

16. according to the described control device of claim 1, wherein, also have most rectification circuits, electrically connect respectively this power take-off group respectively, the second siding ring of this first and second transformer that is electrically connected with this power take-off group respectively is located in this rectification circuit.

17. according to the described control device of claim 16, wherein, respectively this rectification circuit is provided with two thyristors, respectively the lock end of this thyristor and the respectively second siding ring electric connection of this first and second transformer.

18. according to the described control device of claim 1, wherein, also have a display driver chip and a display floater, this display driver chip electrically connects this display floater, this controller and this power take-off group respectively, and this display floater can show the electric current that this power take-off group is respectively exported.

19. a magnetic force control module includes:

20. according to the described magnetic force control module of claim 19, wherein, respectively this electromagnetic disc has most electric fan blocks, respectively this electric fan block surface forms this adsorption zone, and respectively this electric fan block is provided with this magnet assembly.

21. according to the described magnetic force control module of claim 20, wherein, respectively this magnet assembly is wound with this induction coil, those induction coils of this electromagnetic disc are parallel to this power end group.

22. according to the described magnetic force control module of claim 19, wherein, respectively this magnet assembly is made for having ferromagnetic material.