CN103632803B - A kind of electromagnetic coil driving circuit - Google Patents
A kind of electromagnetic coil driving circuit Download PDFInfo
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- CN103632803B CN103632803B CN201310532888.9A CN201310532888A CN103632803B CN 103632803 B CN103632803 B CN 103632803B CN 201310532888 A CN201310532888 A CN 201310532888A CN 103632803 B CN103632803 B CN 103632803B
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Abstract
The invention relates to a kind of electromagnetic coil driving circuit, belong to solenoid drive field, described drive circuit it comprise driving power, also comprise: signaling switch module, for receive solenoid enabling signal and to subordinate's circuit output services signal; First solid-state relay, for being communicated with or disconnecting the circuit between described driving power and solenoid; Controller, its input is connected with the output of described signaling switch module, and its output is connected with the signal input part of described first solid-state relay, for receiving described working signal and successively exporting the first control signal and the second control signal; And compensation delay module, provide compensation of delay exciting curent for controlling described first solid-state relay for described solenoid.Electromagnetic coil driving circuit of the present invention, by compensation delay module, for solenoid provides compensation of delay exciting curent, enables described solenoid produce adhesive action force in time and keep action force, thus enters work fast.
Description
Technical field
The present invention relates to a kind of electromagnetic coil driving circuit, belong to solenoid and drive field, when particularly relating to a kind of single supply, drive the circuit of solenoid work.
Background technology
The work of solenoid depends primarily on the exciting curent that its drive circuit provides, based on the inductance characteristic of solenoid, solenoid for rapid operation generally all needs the exciting curent of first big after small two grades, the short time of one several milliseconds-a few tens of milliseconds larger exciting curent is provided when starting, the adhesive action force of solenoid can be formed fast, and then the exciting curent of solenoid is kept with running current, maintain the maintenance action force of solenoid.
To the solenoid of rapid operation, existing single supply drive circuit generally comprises driving power, signal switching circuit signaling switch module and controllable constant current source circuit, described controllable constant current source circuit comprises controller, big current start-up circuit and small area analysis holding circuit, described signaling switch module is for isolating or connect the enabling signal of solenoid, its output is connected with the input of described controller, the output of described controller is connected with described big current start-up circuit or described small area analysis holding circuit, described big current start-up circuit or described small area analysis holding circuit is connected for controlling, described big current start-up circuit or described small area analysis holding circuit, its input is connected with described driving power, its output is connected with described solenoid, described big current start-up circuit makes described solenoid form adhesive action force, described small area analysis holding circuit makes described solenoid keep action force.
Realizing in process of the present invention, inventor finds that prior art at least exists following shortcoming:
After signaling switch module connects the enabling signal of solenoid, enabling signal passes to controller, controller needs this signal to change after receiving enabling signal, become the working signal that subordinate's circuit needs, then export, therefore between its time outputed signal and enabling signal transmitting time of solenoid, there is the regular hour poor, cannot ensure that solenoid enters work fast.
Summary of the invention
Main purpose of the present invention is, provide a kind of electromagnetic coil driving circuit, it comprises driving power, also comprises: signaling switch module, for receive solenoid enabling signal and to subordinate's circuit output services signal; First solid-state relay, for being communicated with or disconnecting the circuit between described driving power and solenoid; Controller, its input is connected with the output of described signaling switch module, its output is connected with the signal input part of described first solid-state relay, for receiving described working signal and the pwm control signal of priority output the first control signal and the second control signal two sections of different times and different duty; Second solid-state relay, its output is connected with the input of described first solid-state relay, and the positive pole of its signal input part is connected with the output of described signaling switch module, for receiving described working signal and forming the 3rd control signal; And RC circuit, its one end is connected with the negative pole of the signal input part of described second solid-state relay, other end ground connection; Described working signal, controls described controller and described second solid-state relay work; Described first control signal controls described first solid-state relay work, for described solenoid provides startup exciting curent; Described second control signal controls described first solid-state relay work, for described solenoid provides maintenance exciting curent; Described 3rd control signal controls described first solid-state relay work, for described solenoid provides compensation of delay exciting curent.
Preferably, described controller is S7-200 Programmable Logic Controller.
Preferably, the output of described controller is connected with the input of described first solid-state relay by the first diode; The output of the second described solid-state relay is connected with the input of described first solid-state relay by the second diode.
Preferably, described signaling switch module comprises: the 3rd solid-state relay, and its output is connected with the signal input part of described second solid-state relay, and is connected with the input of described controller.
Further, described electromagnetic coil driving circuit also comprises: the first resistance, and its one end is connected with the output of described 3rd solid-state relay, other end ground connection.
Further, described electromagnetic coil driving circuit also comprises: the second resistance, and its one end is connected other end ground connection with the input of the first described solid-state relay.
Preferably, described RC circuit, comprising: electrochemical capacitor; Potentiometer, connects with described electrochemical capacitor; And the 3rd resistance, in parallel with described electrochemical capacitor, form discharge loop.
Further, described electromagnetic coil driving circuit also comprises: the 4th resistance; 3rd diode, with described 4th resistant series, for the formation of the discharge loop of described solenoid.
Further, described electromagnetic coil driving circuit also comprises: the 5th resistance, on the circuit between described first solid-state relay output and described solenoid, for debugging and test sample.
Preferably, the voltage of described driving power is not more than 1/2 of the insulation voltage of described solenoid.
By technique scheme, a kind of electromagnetic coil driving circuit of the present invention at least has following advantages:
The electromagnetic coil driving circuit that the embodiment of the present invention provides, by arranging the compensation delay module first sending control signal than controller, at the time delay of described controller, control described first solid-state relay work, for described solenoid provides compensation of delay exciting curent, enable described solenoid produce adhesive action force in time and keep action force, thus enter work fast.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the electromagnetic coil driving circuit that the embodiment of the present invention provides;
Fig. 2 is the exciting curent oscillogram of the formation of the electromagnetic coil driving circuit that the embodiment of the present invention provides;
Fig. 3 is the concrete structure schematic diagram of the electromagnetic coil driving circuit that the embodiment of the present invention provides;
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of electromagnetic coil driving circuit proposed according to the present invention, structure, feature and effect thereof, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
As shown in Figure 1, a kind of electromagnetic coil driving circuit that one embodiment of the present of invention propose, for providing exciting curent for solenoid, it comprises driving power Vcc, signaling switch module, the first solid-state relay 1, controller, the first diode D1 and compensation delay module.
Wherein, signaling switch module for receive solenoid enabling signal and to subordinate's circuit output services signal, in the present embodiment, signaling switch module receives the control signal of solenoid, when receiving the enabling signal of described solenoid, described signaling switch module connects its working power, and the voltage signal of its working power is exported to subordinate's circuit, as the working signal of subordinate's circuit, the first described solid-state relay 1, its power end is connected with described driving power Vcc, its output is connected with described solenoid, for being communicated with or disconnecting the circuit between described driving power Vcc and described solenoid, for described solenoid provides exciting curent, the preferred pwm signal of working signal of described first solid-state relay 1, the input of described controller is connected with the output of described signaling switch module, its output is connected with the signal input part of described first solid-state relay 1, the described working signal sent for receiving described signaling switch module also successively exports the first control signal and the second control signal, described first control signal and the second control signal are the pwm control signal of two sections of different times and different duty, it controls described first solid-state relay and starts exciting curent for described solenoid provides and keep exciting curent, the duty ratio of wherein said first control signal is greater than the duty ratio of described second control signal, controlling described first solid-state relay 1 for described solenoid provides the startup exciting curent of big current, described solenoid is made to form adhesive action force, described second control signal controls described first solid-state relay 1 for described solenoid provides the maintenance exciting curent of small area analysis, described solenoid is made to keep action force, compensation delay module comprises the second solid-state relay 2 and RC circuit, wherein, the output of the second solid-state relay 2 is connected with the input of described first solid-state relay, the positive pole of its signal input part is connected with the output of described signaling switch module, for receiving described working signal and forming the 3rd control signal, control described first solid-state relay 1 conducting, for described solenoid provides compensation of delay exciting curent.
Signaling switch module works when receiving the enabling signal of described solenoid, described enabling signal is zoomed into the voltage signal identical with its operating voltage, exported to subordinate's circuit by two branch roads in parallel simultaneously, as the working signal of subordinate's circuit, be specially: export this working signal by controller described in first road direction, export this working signal described by the second solid-state relay described in second road direction.Due to described controller receive the working signal that described signaling switch module exports after need the pwm control signal of two sections of different times and the different duty converted thereof into, then described pwm control signal is exported to its subordinate's circuit, therefore the time of described controller described first control signal of output and described second control signal can postpone than the transmitting time of solenoid enabling signal, is generally 5-10 millisecond time of delay, described working signal exports to the second solid-state relay by the second branch road, make described second solid-state relay work, form the 3rd control signal, control described first solid-state relay work, as shown in Figure 2, for described solenoid provides compensation of delay exciting curent a, meanwhile, the existence of this working signal makes described RC circuit charge, because the charging current of RC circuit decays gradually, when charging current is less than the signal code triggering described second solid-state relay work, described second solid-state relay quits work, the duration of delay compensation exciting curent a can be adjusted by adjustment RC circuit, this time of general control is 5-10 millisecond, the i.e. delaying time of controller time, the two sections of different times successively exported by controller and the pwm signal of different duty, i.e. the first control signal and the second control signal, control described first solid-state relay work, form two sections of exciting curents, be i.e. the startup exciting curent b of big current and the maintenance exciting curent c of small area analysis.
The electromagnetic coil driving circuit that the embodiment of the present invention provides, by arranging the compensation delay module first exporting control signal than controller, at the time delay of described controller, control described first solid-state relay work, for described solenoid provides compensation of delay exciting curent, enable described solenoid produce adhesive action force in time and keep action force, thus enter work fast.
See Fig. 3, preferably, described controller is S7-200 Programmable Logic Controller.S7-200PLC can guide rails assembling, is convenient to Installation and Debugging, and can realize the setting of two kinds of pwm control signals by programming, is convenient to the time adjusting two sections of pwm control signals as required; By coordinating the drive circuit that can be formed and control solenoid work fast with the conventional industrial components and parts such as solid-state relay, diode, potentiometer, electric capacity, resistance, enormously simplify circuit, without the need to other printed circuit board, can directly install in control cubicle or control cabinet, convenient debugging, and cost is low, antijamming capability is strong.
Preferably, the output of described controller is connected with the input of described first solid-state relay 1 by the first diode D1; The output of the second described solid-state relay 2 is connected with the input of described first solid-state relay by the second diode D2.By arranging the first diode D1 and the second diode D2, the signal with its parallel branch can be intercepted, ensureing the unidirectional delivery of signal.
Preferably, described signaling switch module comprises the 3rd solid-state relay 3, and its output is connected with the signal input part of described second solid-state relay 2, and is connected with the input of described controller.In the present embodiment, the working power of described 3rd solid-state relay 3 is 24V power supply, and when its signal input part receives the enabling signal of described solenoid, described 3rd solid-state relay 3 is connected, and exports described working signal, i.e. 24V power supply voltage signal.Solid-state relay can guide rails assembling, is convenient to installment and debugging.
Preferably, described electromagnetic coil driving circuit, also comprises the first resistance R1, and its one end is connected with the output of described 3rd solid-state relay 3, other end ground connection, preferred more than the 10K Ω of resistance of described first resistance.By arranging the first resistance R1, this partial circuit being made zero when disconnecting, being conducive to protective circuit.
Preferably, described electromagnetic coil driving circuit, also comprises the second resistance R2, and its one end is connected other end ground connection with the input of the first described solid-state relay 1, and its effect is identical with described first resistance.
Preferably, described RC circuit, comprise electrochemical capacitor C, potentiometer RW1 and the 3rd resistance R3, potentiometer RW1 and to connect with described electrochemical capacitor C, the 3rd resistance R3 is in parallel with electrochemical capacitor C, forms discharge loop.Because the charging current of RC circuit decays gradually, when decaying to the operating current being to a certain degree namely less than the second solid-state relay, second solid-state relay 2 quits work, the operating time of the second solid-state relay is the required time of compensation delay, when operating voltage is identical, the size of charging current and the resistance of potentiometer RW1 are inversely proportional to, the size of charging interval and charging current is also inversely proportional to, be directly proportional with the capacity of electrochemical capacitor C, therefore in this circuit, the charging interval of corresponding second solid-state relay operating time is determined primarily of the capacity of electrochemical capacitor C, the resistance of adjustment potentiometer RW1 plays the effect of the fine setting in charging interval.3rd resistance R3 is in parallel with electrochemical capacitor C, forming discharge loop, when not having control signal, being discharged by the electricity of electrochemical capacitor C rapidly.
Preferably, described electromagnetic coil driving circuit, also comprise the 4th resistance R4 and the 3rd diode D3, the 3rd diode D3 connects with the 4th resistance R4, for the formation of the discharge loop of described solenoid, normally works to protect described solenoid.
Preferably, described electromagnetic coil driving circuit, also comprises the 5th resistance R5, its resistance is 1 Ω preferably, on its circuit between described first solid-state relay output and described solenoid, for debugging and test sample, so that obtain and drive circuit that described solenoid mates most.
Preferably, the voltage of described driving power Vcc is not more than 1/2 of the insulation voltage of described solenoid, to ensure that solenoid normally works.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. an electromagnetic coil driving circuit, it comprises driving power, it is characterized in that, also comprises:
Signaling switch module, for receive solenoid enabling signal and to subordinate's circuit output services signal;
First solid-state relay, for being communicated with or disconnecting the circuit between described driving power and solenoid;
Controller, its input is connected with the output of described signaling switch module, its output is connected with the signal input part of described first solid-state relay, for receiving described working signal and the pwm control signal of priority output the first control signal and the second control signal two sections of different times and different duty;
Second solid-state relay, its output is connected with the input of described first solid-state relay, and the positive pole of its signal input part is connected with the output of described signaling switch module, for receiving described working signal and forming the 3rd control signal; And
RC circuit, its one end is connected with the negative pole of the signal input part of described second solid-state relay, other end ground connection;
Described working signal, controls described controller and described second solid-state relay work;
Described first control signal controls described first solid-state relay work, for described solenoid provides startup exciting curent;
Described second control signal controls described first solid-state relay work, for described solenoid provides maintenance exciting curent;
Described 3rd control signal controls described first solid-state relay work, for described solenoid provides compensation of delay exciting curent.
2. electromagnetic coil driving circuit according to claim 1, is characterized in that:
Described controller is S7-200 Programmable Logic Controller.
3. electromagnetic coil driving circuit according to claim 1, is characterized in that:
The output of described controller is connected with the input of described first solid-state relay by the first diode;
The output of the second described solid-state relay is connected with the input of described first solid-state relay by the second diode.
4. electromagnetic coil driving circuit according to claim 1, is characterized in that, described signaling switch module, comprising:
3rd solid-state relay, its output is connected with the signal input part of described second solid-state relay, and is connected with the input of described controller.
5. electromagnetic coil driving circuit according to claim 4, is characterized in that, also comprises:
First resistance, its one end is connected with the output of described 3rd solid-state relay, other end ground connection.
6. electromagnetic coil driving circuit according to claim 5, is characterized in that, also comprises:
Second resistance, its one end is connected other end ground connection with the input of the first described solid-state relay.
7. the electromagnetic coil driving circuit according to any one of claim 1-6, is characterized in that, described RC circuit, comprising:
Electrochemical capacitor;
Potentiometer, connects with described electrochemical capacitor; And
3rd resistance, in parallel with described electrochemical capacitor, form discharge loop.
8. the electromagnetic coil driving circuit according to any one of claim 1-6, is characterized in that, also comprises:
4th resistance;
3rd diode, with described 4th resistant series, for the formation of the discharge loop of described solenoid.
9. the electromagnetic coil driving circuit according to any one of claim 1-6, is characterized in that, also comprises:
5th resistance, on the circuit between described first solid-state relay output and described solenoid, for debugging and test sample.
10. the electromagnetic coil driving circuit according to any one of claim 1-6, is characterized in that:
The voltage of described driving power is not more than 1/2 of the insulation voltage of described solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310532888.9A CN103632803B (en) | 2013-10-31 | 2013-10-31 | A kind of electromagnetic coil driving circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310532888.9A CN103632803B (en) | 2013-10-31 | 2013-10-31 | A kind of electromagnetic coil driving circuit |
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| Publication Number | Publication Date |
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| CN103632803A CN103632803A (en) | 2014-03-12 |
| CN103632803B true CN103632803B (en) | 2016-01-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112748690A (en) * | 2021-01-07 | 2021-05-04 | 朱丽萍 | Magnetic latching relay drive circuit for medical equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6363895B1 (en) * | 1998-08-13 | 2002-04-02 | Siemens Aktiengesellschaft | Device for controlling a regulator |
| CN1608299A (en) * | 2001-12-26 | 2005-04-20 | 富士电机株式会社 | Electromagnetic apparatus drive apparatus |
| CN201369204Y (en) * | 2009-01-06 | 2009-12-23 | 安泰汽车电气系统（昆山）有限公司 | Magnet coil drive circuit |
| CN203588791U (en) * | 2013-10-31 | 2014-05-07 | 北京二十一世纪科技发展有限公司 | Drive circuit of electromagnetic coil |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2626147B2 (en) * | 1990-03-30 | 1997-07-02 | 富士電機株式会社 | Drive device for electromagnet device |
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- 2013-10-31 CN CN201310532888.9A patent/CN103632803B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6363895B1 (en) * | 1998-08-13 | 2002-04-02 | Siemens Aktiengesellschaft | Device for controlling a regulator |
| CN1608299A (en) * | 2001-12-26 | 2005-04-20 | 富士电机株式会社 | Electromagnetic apparatus drive apparatus |
| CN201369204Y (en) * | 2009-01-06 | 2009-12-23 | 安泰汽车电气系统（昆山）有限公司 | Magnet coil drive circuit |
| CN203588791U (en) * | 2013-10-31 | 2014-05-07 | 北京二十一世纪科技发展有限公司 | Drive circuit of electromagnetic coil |
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| CN103632803A (en) | 2014-03-12 |
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