CN104718099A - Control circuit for at least one contactor and method for operating at least one contactor - Google Patents
Control circuit for at least one contactor and method for operating at least one contactor Download PDFInfo
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- CN104718099A CN104718099A CN201380054201.3A CN201380054201A CN104718099A CN 104718099 A CN104718099 A CN 104718099A CN 201380054201 A CN201380054201 A CN 201380054201A CN 104718099 A CN104718099 A CN 104718099A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims description 42
- 230000008878 coupling Effects 0.000 claims description 35
- 238000010168 coupling process Methods 0.000 claims description 35
- 238000005859 coupling reaction Methods 0.000 claims description 35
- 238000012423 maintenance Methods 0.000 claims description 21
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000005669 field effect Effects 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 12
- 230000008859 change Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/32—Energising current supplied by semiconductor device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/32—Energising current supplied by semiconductor device
- H01H47/325—Energising current supplied by semiconductor device by switching regulator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Relay Circuits (AREA)
- Amplifiers (AREA)
Abstract
The invention relates to a control circuit (30) for at least one contactor, comprising a first and a second connection (11, 12). Said control circuit (30) also comprises a first and second outlet (15, 16) which enables the control circuit (30) to be connected to a first and a second connection of a control bobbin for a contactor. Said control circuit (30) further comprises a holding voltage unit (10) which is connected to the first outlet (15) and is designed to provide a holding voltage for the control bobbin on the one first outlet (15). According to the invention, an electric connection (8) comprises a current control circuit (5) which is designed to control the current circulating through the electric connection (8) to a predetermined value. The invention also relates to a method for operating at least one contactor.
Description
Technical field
The present invention relates to a kind of control circuit at least one contactless switch, it has voltage holding unit and current regulating circuit, the electric current of the control coil by this contactless switch accurately can be adjusted to rated value by this regulating circuit.
Background technology
Obviously, in the future not only in static application, and more battery system will be used on such as motor vehicle driven by mixed power and elec. vehicle, about reliability, very high requirement is proposed to this.Reason is, the inefficacy of storage battery can cause the problem relevant to safety.In order to provide power desired each application, usually a large amount of storage battery list ponds is connected in series, thus obtain high storage battery output voltage, this storage battery does not contact and supplies electric connecting terminal by the corresponding of this battery-driven equipment with having suitable measure enduringly, and means the danger for service personnel or user.For this reason contactless switch is set usually, to make these storage batterys can electrolysis coupling.In the self-propelled vehicle of control motor with electricity, not only at the positive pole of storage battery but also assemble contactless switch on its negative pole, it arranges the high potential that is used for storage battery and reliably must disconnect storage battery when the short circuit current more than 1000A.
Switching on and off of contactless switch realizes by electric terminal or by control circuit usually, and the control coil that this control circuit is contactless switch provides electric current.At this, this control power does not have little of ignoring.In order to reliably adhesive contactless switch needs than at the control electric current of closure state in order to keep in touch much higher subsequently in connection process.For this reason, usually the control of contactless switch is divided into two patterns, adhesive pattern and Holdover mode (or also have the adhesive stage or keep the stage).Concerning often kind of pattern specifically, control the size of electric current when the size controlling electric current when adhesive pattern is greater than Holdover mode.Referred to here as adhesive rank and maintenance rank.Wherein adhesive pattern is only necessary and time length is relatively short to connection (closing) adaptor union.This contactless switch of main portion is operationally in the Holdover mode that power is saved.Therefore, the control circuit for control contactor should be able to show two kinds of operational modes.
By the known a kind of equipment for control contactor of DE 10 2,010 041 018, this equipment comprises electric current holding unit, and this electric current holding unit is configured to, and the mouth to its outgoing side is exported for the maintenance electric current of the control coil of contactless switch.By equipment disclosed in DE 10 2,010 041018 A1, the different voltage levels with constant potential the adhesive stage and keep the stage can control contactor in an advantageous manner.
But, the coil resistance of such as relevant in equipment disclosed in the DE 10 2,010 041 018 A1 parts especially control coil of contactless switch, there is temperature dependency and its parameters of operating part with manufacture relevant scattering.In addition, be adjusted to by the maintenance voltage keeping current unit to produce in the value determined in order to production time.
Therefore, relevant parts (especially at the parts of the inside of the voltage hold circuit of control circuit) necessarily construct, and make also can provide necessary maintenance electric current when excessive temperature appears in this maintenance current unit.But because the conductivity of these parts and thus by same, such as by the electric current of the control coil of contactless switch according to temperature fluctuation, it is thereby necessary that, compare fixed for the size of these parts necessary larger the electric current desired by script.Such as therefore by so fixed that to exceed 66% for the size of the relevant parts in the lock-out circuit of equipment disclosed in DE 10 2,010 041 018 A1, must which greatly enhances the structure space required for these parts and cost.
Summary of the invention
According to the present invention proposes a kind of control circuit at least one contactless switch, it comprises the first and second coupling ends, and described control circuit can be connected with multiple poles of accumulator by described first and second coupling ends.In addition, described control circuit also comprises at least one first mouth and at least one second mouth, and described control circuit can be connected with the first and second coupling ends of the control coil for contactless switch with at least one second mouth described by least one first mouth described.At least one second mouth described is connected with described second coupling end by electrical connection.In addition, described control circuit also comprises voltage holding unit, and described voltage holding unit is connected with at least one first mouth described and is configured to, at least one first output described for described control coil provides maintenance voltage.According to the present invention, described electrical connection has current regulating circuit, and described current regulating circuit is arranged for, by the Current adjustment by described electrical connection to predetermined value.
By described control circuit, this is possible, when constant maintenance voltage during the maintenance stage, is that each temperature accurately regulates electric current by the control coil of contactless switch.The assembly of the control circuit in potential circuit is kept to need not to be large-sized so be such as arranged on, because the rising depending on temperature of the electric current in maintenance potential circuit or reduction can by current regulating circuit effects.Thus cost and making space can be saved.
In a preferred form of implementation, described current regulating circuit comprises the transistor be arranged in described electrical connection, and wherein, described transistor has control electrode and is arranged for, and is controlled linearly and runs as current source.By multiple transistor can switch and strengthen multiple signal, without the need to again mechanical movement must be implemented.Multiple transistor runs near running voltage.It has little loss, very little heat produces and very little size.In addition, transistor can be used as current source or for regulating electric current, well because the resistance of the switching circuit of transistor (Schaltstrecke) can fine adjustment.
In preferred improvement preferably, transistor is implemented as metal-oxide-semiconductor fieldeffect transistor (MOSFET) or bipolar transistor.MOSFET is with low cost and closely, namely can realize with high integration density.In addition, MOSFET has fast switching time and stable amplification and response time.And bipolar transistor has high voltage stability and similarly high switching speed.In addition, its conduction loss with flow through its electric current and collector emitter saturation voltage linearly proportionate relationship.
Preferably, current regulating circuit has and is electrically connected the current measuring unit be connected.Therefore this is possible, very accurately measures the electric current in electrical connection and the electric current by control coil, and overcomes the deviation of electric current and its rated value.
In a preferred improvement of this form of implementation, current measuring unit is implemented as shunt resistance.Circuit resistance or diverter are unusual cost-effectives and very accurately can measure electric current compared with other current measuring unit or current sensor.
In this form of implementation or above-mentioned form of implementation in any one one preferred improvement, current regulating circuit has regulon, described regulon is connected with the described control electrode of described current measuring unit and described transistor and is arranged for, by described control electrode, according to carrying out transistor described in Linear Control by the electric current measured by described current measuring unit.
Preferably, described regulon is implemented as the feedback amplifier with mouth and two input ends, wherein, the described mouth of described feedback amplifier is connected with the described control electrode of described transistor, and described feedback amplifier input end is connected with described current measuring unit and another input end of described feedback amplifier is connected with constant electromotive force.
Preferably, the input end be connected with constant electromotive force of described feedback amplifier has reference voltage source.
By this feedback amplifier, current measuring unit is connected with the control electrode of transistor and directly can be overcome the deviation of electric current and rated value by the change of the resistance of the switching circuit of transistor.The electric current measured by current measuring unit is analyzed and transmits with not necessarily first spending.
Preferably, feedback amplifier is implemented as op amp.Op amp is that short circuit is stable, does not need frequency compensation, has very large input voltage range and absorbs little power.
In a preferred form of implementation, feedback amplifier is implemented as electronic circuit, and it has discrete device.By the structure of discrete device, relative to the enforcement of feedback amplifier, obtain cost advantage by op amp.
Preferably, voltage holding unit is implemented as dc-dc converter.Dc-dc converter is energy saving and due to its active Current adjustment, it is relative insensitivity relative to electric current or parameter fluctuation.
A kind of method of the operation at least one contactless switch is provided in addition, it comprises at least one for controlling control coil and the voltage holding unit of at least one contactless switch, described voltage holding unit is connected with at least one control coil and is configured to, and causes the electric current by least one control coil described by the maintenance voltage produced at the mouth of described voltage holding unit.In addition, the method of the described operation at least one contactless switch comprises current regulating circuit, described current regulating circuit conductance earthing is connected with described control coil, and be configured to, by the Current adjustment by least one control coil described to predetermined value, wherein, described method comprises following methods step: provided the operating current flowing through at least one control coil described by described voltage holding unit.The maintenance electric current flowing through at least one control coil described is provided by described voltage holding unit.Measure the amount of the electric current flowing through at least one control coil described.To the Current adjustment of at least one control coil described be flow through to predetermined value according to the amount of the electric current flowing through at least one control coil described by described current regulating circuit.
In a preferred improvement of the method for the operation at least one contactless switch, described current regulating circuit also comprises transistor, described in described transistor AND gate, at least one control coil conductance earthing is connected, and wherein, by the Current adjustment by least one control coil described in the step of predetermined value, the described adjustment of described electric current is realized by described current regulating circuit by the Linear Control of described transistor.
Provide in multiple dependent claims and set forth preferred multiple improvement of the present invention in the description.
Accompanying drawing explanation
Multiple embodiment of the present invention is set forth further with reference to the accompanying drawings with following explanation.Wherein:
Fig. 1 shows a kind of control circuit of prior art;
Fig. 2 shows a kind of embodiment according to control circuit of the present invention; And
Fig. 3 shows a kind of special embodiment according to the control circuit for controlling two contactless switchs of the present invention.
Detailed description of the invention
A kind of control circuit 30 of prior art has been shown in Fig. 1.This control circuit 30 being used for control contactor is connected with voltage source 60 by the first and second coupling ends 11,12, the control coil 50 of this contact is illustrate only at this, this voltage source 60 is powered for control circuit 30, but also provides the electric current for controlling this contactless switch controlled by this control circuit 30.The control coil 50 of these contactless switchs is connected with the second mouth 15,16 by the first mouth with this control circuit 30.This control circuit 30 has the first switch and second switch 41,42, and it is connected between the corresponding pole of voltage source 60 and the corresponding electrode of control coil 50.If these two switches 41,42 close simultaneously, so this control coil 50 is directly connected with voltage source 60 and begins to flow through maximum current, and enough greatly, to make contactless switch can adhesive, thus this contactless switch proceeds to conducting state to this electric current.
In addition this control circuit 30 has voltage holding unit 10, and this voltage holding unit 10 is powered by this voltage source 60 equally.This voltage holding unit 10 provides maintenance voltage, and this maintenance voltage closed for, device of keeping in touch in the maintenance stage after the adhesive stage that follows closely.Because be unlike at this mass inertia that adhesive stage needs to overcome motor contactless switch, less electric current is just to be enough to keep this contactless switch at closure state, therefore, it is possible to advantageously saving power.Therefore again disconnects (and where necessary activation voltage holding unit 10) at maintenance stage first switch 41, thus this control coil 50 is only by keeping electric current to flow through.Flow through diode 45 at this this maintenance electric current, this diode 45 is connected between voltage holding unit 10 and control coil 50 and its effect stops the electric current in the mouth of voltage holding unit 10.
Unloaded diode 46 is set extraly in FIG, its when keep electric current disconnect for control coil 50 in flowing electric current no-load current path is provided.This separation phase starts thus, and namely second switch 42 also disconnects and other this voltage holding unit 10 of deexcitation where necessary.Because this control coil 50 flows through the change of its electric current due to its inductive obstacle, its also current flow after it is separated from power supply voltage, now due to circuit series, this current flowing connects unloaded diode 46 and diode 45.Because the necessary On current of the second coupling end of control coil 50, so create high negative voltage accordingly at this, this negative voltage causes puncturing the Zener diode as terminal voltage element 47.Electric current in this control coil 50 reduces fast, thus the magnetic field of control coil 50 is also reduced and the disengaging of the contactless switch of correspondence, and these contactless switchs are disconnected thus.
First switch 41, second switch 42 and where necessary keep voltage source 10 controlled by control unit 35.
Fig. 2 shows the embodiment according to control circuit 30 of the present invention.By the first and second coupling ends 11,12, can be connected with multiple poles of the accumulator of such as storage battery or battery system according to control circuit 30 of the present invention.By the first and second mouths 15,16, two coupling ends or the electrode of control circuit 30 according to the present invention and control coil are connected.In other words, the mouth 15 of control circuit 30 can be connected with the first end of the control coil of contactless switch, and the second mouth 16 of control circuit 30 can be connected with the second end of the control coil of contactless switch.By being electrically connected 8, the second mouth 16 is connected with the second coupling end 12 conductance earthing.In addition, this control circuit 30 comprises voltage holding unit 10, and it is connected with the first mouth 15 of control circuit 30 at outgoing side at the first coupling end 11 of input side and control circuit 30 alternatively.In addition, this voltage holding unit 10 is arranged for, and provides or supply the maintenance voltage for control coil at the first mouth 15 place of control circuit 30.In control circuit 30 according to the present invention, this voltage holding unit 10 is not necessarily connected with in coupling end 11,12.Can also realize according to multiple control circuit 30 of the present invention, wherein according to control circuit of the present invention neither with the first coupling end of control circuit 30, be not also connected with the second coupling end 11,12.
According to the present invention, the electrical connection 8 between the second mouth 16 and the second coupling end 12 has current regulating circuit 5, and it is arranged for, by the Current adjustment by electrical connection 8 to predetermined value.In other words, by current regulating circuit 5, this is possible, affected by the control coil be connected with control circuit 30 or change electric current, and this electric current is adjusted to the value determined, and change without the need to the maintenance voltage arranged by voltage holding unit 10 for this reason.By control coil or by the change of the electric current of electrical connection 8 or arrange can without the need on the impact of voltage holding unit 10 or effect,
Fig. 3 shows the special embodiment according to the control circuit 30 for controlling two contactless switchs of the present invention.The control circuit 30 of this embodiment in Fig. 3 is in this major part and shown in Figure 1 consistent.By the first and second coupling ends 11,12, this control circuit 30 is connected with accumulator 60, and this accumulator is exemplarily implemented as low tension battery in this embodiment purely.In this embodiment, second of accumulator 60 be extremely purely exemplarily connected to ground extraly.In addition, shown in Figure 3 have first mouth 15 and two the second mouths 16 according to the embodiment of control circuit 30 of the present invention.The first end of the first coupling end of the first mouth and each contactless switch or two control coils 50 implemented in this embodiment is connected identically.Second coupling end of a contactless switch or the second end of control coil 50 are connected with in multiple second mouths 16 of control circuit 30, and the second end of the second coupling end of other contactless switch or other control coil 50 is connected with another in multiple second mouths 16 of control circuit 30.Two the second mouths 16 of control circuit 30 are connected with the second coupling end 12 of control circuit 30 respectively by electrical connection 8.In other words, second mouth 16 of control circuit 30 is connected with the second coupling end 12 of control circuit 30 by electrical connection 8, and the second other mouth 16 of control circuit 30 is connected with the second coupling end 12 of control circuit 30 by another electrical connection 8.Control circuit 30 also has voltage holding unit 10, and it as implemented and being connected in control circuit 30 in the description of Fig. 1.In other words, voltage holding unit 10 has two input ends, is connected in this embodiment by its this voltage holding unit 10 with the first and second coupling ends 11,12 by it with two poles of accumulator 60.In addition, the mouth of voltage holding unit 10, as passed through optional diode 45 in Fig. 1, is connected with the first mouth 15 of control circuit 30.Between diode 45 and control circuit 30, the electrical connection between voltage holding unit 10 and its first mouth 15 is connected with optional unloaded diode 46, the same with Fig. 1.At this, the negative electrode of unloaded diode 46 is connected with the electrical connection between voltage holding unit 10 and its first mouth 15, and being connected partly of the anode of this unloaded diode and control circuit 30.By the first mouth 15 of optional switching device 41 and control circuit 30 and therefore in the embodiments of figure 3, the first coupling end 11 of control circuit 30 is connected with the first coupling end of control coil 50 or first end.By optional switching device 41, control coil 50 is also directly connected with the pole of accumulator 60.By close switch device 41, electrical connection 8 place of conducting between the second mouth 16 and coupling end 12, maximum current flows through control coil 50, to make contactless switch adhesive, thus contactless switch is converted to conducting state.In addition, have optional control unit 35 according to this embodiment of control circuit 30 of the present invention, by its not only optional switching device 41, and voltage holding unit 10 is controlled.
According to the present invention, multiple electrical connections 8 between the second mouth 16 and the coupling end 12 of control circuit 30 have current regulating circuit 5 respectively, it is arranged for, and measures the electric current by each electrical connection 8 and is adjusted or be adjusted to predetermined value.In order to observe object, two current regulating circuits 5 of this embodiment are in figure 3 different, and implement according to the present invention.Also can so realize according to control circuit 30 of the present invention, wherein multiple current regulating circuit 5 is implemented in the same manner.The common ground of two current regulating circuits 5 is, it all has transistor 4.At this, multiple transistors 4 with switching circuit lay respectively within each electrical connection 8.Multiple transistor 4 has control electrode respectively.In addition, those current regulating circuits 5 have the current measuring unit 3 be connected with corresponding electrical connection 8 respectively, and it is arranged for respectively, measure the circuit by being electrically connected 8 flowings accordingly.When the current measuring unit 3 in two current regulating circuits 5 is implemented as shunt resistance, transistor 4 in this current regulating circuit 5 is exemplarily implemented as MOSFET purely, and the transistor 4 of other current regulation unit 5 is exemplarily implemented as bipolar diode purely.The transistor 4 of current regulation unit 5 is arranged for, and is controlled linearly and runs as current source.In other words, this transistor 4 is arranged for, and works in the linearity region of its characteristic curve, and the resistance with corresponding switching circuit can be regulated changeably.No matter the enforcement of the transistor as MOSFET or bipolar diode, or the enforcement of the current measuring unit 3 as shunt resistance, be all pure exemplarily optional in this embodiment.Control circuit 30 according to the present invention also can so be realized, and wherein transistor 4 or current measuring unit 3 are additionally implemented.
In this embodiment, multiple current regulation unit 5 also has regulon 2 respectively, it connects within corresponding current regulating circuit 5 to the control electrode of current measuring unit 3 and transistor 4 respectively, and be arranged for, control corresponding transistor by its control electrode linearly according to the electric current measured by corresponding current measuring unit 3, or make it run as current source.In this embodiment, multiple regulon 2 is connected respectively at the measurement coupling end of shunt resistance.In other words, multiple regulon 2 can come to apply control signal to the control electrode of multiple transistor 4 according to the electric current measured by corresponding current measuring unit 3 respectively, and this control signal is corresponding to the size of the electric current by corresponding electrical connection 8.Therefore, the resistance of the switching circuit of transistor 4 can according to the electric current by being electrically connected 8 accordingly, be reduced by the control of regulon 2 or increased.Thus, by being electrically connected the electric current of 8, and therefore being adjusted by the electric current of the control coil 50 be connected via the second coupling end 16 with electrical connection 8 or regulated.
In the embodiments of figure 3, two regulons 2 are exemplarily implemented as feedback amplifier purely.At this, this feedback amplifier is purely exemplarily implemented as electronic circuit in the current regulating circuit 5 with MOSFET, and it has discrete device.This electronic circuit is also by single, individual forming with discrete component or assembly.
The electronic circuit of this current regulating circuit 5 is connected with the grid of MOSFET.Alternatively, when being realized transistor 4 by MOSFET, diode can be connected in parallel with the switching circuit of MOSFET, its negative electrode, as in this embodiment, can purely exemplarily be connected with the second corresponding mouth 15, and its anode is connected with the second coupling end 12.In the other current regulating circuit 5 with bipolar transistor, feedback amplifier is exemplarily embodied as op amp purely, its mouth is connected with the base stage of bipolar transistor, and the pure exemplarily inverting input of this op amp with the measurement coupling end of shunt resistance and non-inverting input be connected with constant potential, be partly in this embodiment.In addition, the non-inverting input of op amp has reference voltage source in this embodiment, can transfer to this feedback amplifier by this reference voltage source for regulating the reference potential of electric current.
Be no matter the enforcement of multiple regulon 2, or as the enforcement of feedback amplifier, be purely exemplary selection in this embodiment.Can also realize with such current regulating circuit 5 according to multiple control circuit 30 of the present invention, it has the multiple regulons 2 otherwise implemented.Be implemented as feedback amplifier regulon 2 also can to realize with being different from the mode that illustrates in this embodiment in control circuit 30 according to the present invention.
In addition, can also realize according to multiple control circuit 30 of the present invention, it is arranged for, and controls to be greater than two contactless switchs, namely be greater than two control coils 50 and be connected.In addition, the relevant multiple transistors 4 within the current regulating circuit 5 of control circuit 30 according to the present invention, except arranging for except linear operation, can also be used for switch and run or switch-mode regulation, namely be arranged for switch and run.By this form of implementation, multiple transistor 4 can such as contactless switch the adhesive stage or separation phase is either completely switched on, namely conductively connect or be blocked.
Claims (12)
1. the control circuit at least one contactless switch (30), comprising:
-the first and second coupling ends (11,12), described control circuit (30) can be connected with multiple poles of accumulator by described first and second coupling ends;
-at least one first mouth and at least one second mouth (15,16), described control circuit (30) can be connected with the first and second coupling ends of the control coil for contactless switch with at least one second mouth described by least one first mouth described, wherein, at least one second mouth (16) described is connected with described second coupling end (12) by electrical connection (8);
-voltage holding unit (10), described voltage holding unit is connected with at least one first mouth (15) described and is configured at least one the first mouth (15) place described as control coil provides maintenance voltage;
It is characterized in that,
Described electrical connection (8) has current regulating circuit (5), and described current regulating circuit is arranged for the Current adjustment by described electrical connection (8) to predetermined value.
2. control circuit according to claim 1 (30), wherein, described current regulating circuit (5) comprises the transistor (4) be arranged in described electrical connection (8), wherein, described transistor (4) has control electrode and is arranged for and controlled linearly and run as current source.
3. control circuit according to claim 2 (30), wherein, described transistor (4) is implemented as metal-oxide-semiconductor fieldeffect transistor MOSFET or bipolar transistor.
4. the control circuit (30) according to any one of the claims, wherein, described current regulating circuit (5) has the current measuring unit (3) be connected with described electrical connection (8).
5. control circuit according to claim 4 (30), wherein, described current measuring unit (3) is implemented as shunt resistance.
6. the control circuit (30) any one of Claims 2 or 3 and according to any one of claim 4 or 5, wherein, described current regulating circuit (5) has regulon (2), and described regulon is connected and is arranged for control described transistor (4) linearly according to the electric current measured by described current measuring unit (3) by the described control electrode of described transistor with the described control electrode of described current measuring unit (3) and described transistor (4).
7. control circuit according to claim 6 (30), wherein, described regulon (2) is implemented as the feedback amplifier with mouth and two input ends, wherein, the described mouth of described feedback amplifier is connected with the described control electrode of described transistor (4), and described feedback amplifier input end is connected with described current measuring unit (3) and another input end of described feedback amplifier is connected with constant electromotive force.
8. control circuit according to claim 7 (30), wherein, described feedback amplifier is implemented as op amp.
9. control circuit according to claim 7 (30), wherein, described feedback amplifier is implemented as the electronic circuit with discrete device.
10. the control circuit (30) according to any one of the claims, wherein, described voltage holding unit (10) is implemented as dc-dc converter.
11. 1 kinds, for the method for the operation of at least one contactless switch, comprising:
-at least one is for controlling the control coil of at least one contactless switch;
-voltage holding unit (10), described voltage holding unit is connected with at least one control coil and is configured to, and causes the electric current by least one control coil described by the maintenance voltage produced at the mouth of described voltage holding unit;
-current regulating circuit (5), described current regulating circuit conductance earthing is connected with described control coil, and is configured to, by the Current adjustment by least one control coil described to predetermined value, wherein, described method comprises following methods step:
-operating current (S1) flowing through at least one control coil described is provided by described voltage holding unit (10);
-the maintenance electric current (S2) flowing through at least one control coil described is provided by described voltage holding unit (10);
-measure the amount that (S3) flows through the electric current of at least one control coil described;
-will the Current adjustment (S4) of at least one control coil described be flow through to predetermined value by described current regulating circuit (5) according to the amount of the electric current flowing through at least one control coil described.
The method of 12. operations at least one contactless switch according to claim 11, wherein, described current regulating circuit (5) also comprises transistor (4), described in described transistor AND gate, at least one control coil conductance earthing is connected, and wherein, by the Current adjustment (S4) by least one control coil described in the step of predetermined value, the described adjustment of described electric current is realized by described current regulating circuit (5) by the Linear Control of described transistor (4).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012218988.2 | 2012-10-18 | ||
| DE102012218988.2A DE102012218988A1 (en) | 2012-10-18 | 2012-10-18 | Control circuit for at least one contactor and a method for operating at least one contactor |
| PCT/EP2013/069662 WO2014060183A1 (en) | 2012-10-18 | 2013-09-23 | Control circuit for at least one contactor and method for operating at least one contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104718099A true CN104718099A (en) | 2015-06-17 |
| CN104718099B CN104718099B (en) | 2020-09-01 |
Family
ID=49274611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380054201.3A Active CN104718099B (en) | 2012-10-18 | 2013-09-23 | Control circuit for at least one contactor and method for operating at least one contactor |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104718099B (en) |
| DE (1) | DE102012218988A1 (en) |
| WO (1) | WO2014060183A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012981A (en) * | 2019-12-20 | 2021-06-22 | 施耐德电气工业公司 | Contactor, control device and control method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013223434A1 (en) * | 2013-11-18 | 2015-05-21 | Robert Bosch Gmbh | Circuit arrangement for controlling a contactor with holding current setting by means of PWM |
| EP3268972A2 (en) * | 2015-03-13 | 2018-01-17 | Eaton Electrical IP GmbH & Co. KG | Reduced-component high-speed disconnection of an electronically controlled contactor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29503146U1 (en) * | 1995-02-24 | 1995-04-13 | Siemens Ag | Circuit arrangement for controlling a contactor |
| WO2001001538A1 (en) * | 1999-06-25 | 2001-01-04 | Siemens Aktiengesellschaft | Protective circuit |
| CN101127282B (en) * | 2007-06-08 | 2010-05-19 | 西安交通大学 | Intelligent AC contactor control unit based on current-variable control |
| FR2952469A1 (en) * | 2009-11-06 | 2011-05-13 | Schneider Electric Ind Sas | ELECTROMAGNETIC ACTUATOR AND ELECTRICAL CONTACTOR COMPRISING SUCH ACTUATOR. |
| DE102010041018A1 (en) | 2010-09-20 | 2012-03-22 | Robert Bosch Gmbh | Contactors actuating device for e.g. charging device for e.g. electric car, has holding current unit connected to output terminal for supplying holding current to drive coil of contactor |
-
2012
- 2012-10-18 DE DE102012218988.2A patent/DE102012218988A1/en active Pending
-
2013
- 2013-09-23 WO PCT/EP2013/069662 patent/WO2014060183A1/en active Application Filing
- 2013-09-23 CN CN201380054201.3A patent/CN104718099B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012981A (en) * | 2019-12-20 | 2021-06-22 | 施耐德电气工业公司 | Contactor, control device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014060183A1 (en) | 2014-04-24 |
| CN104718099B (en) | 2020-09-01 |
| DE102012218988A1 (en) | 2014-04-24 |
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