CN103354193B - A kind of relay drive circuit and the method controlling relay - Google Patents
A kind of relay drive circuit and the method controlling relay Download PDFInfo
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- CN103354193B CN103354193B CN201310259287.5A CN201310259287A CN103354193B CN 103354193 B CN103354193 B CN 103354193B CN 201310259287 A CN201310259287 A CN 201310259287A CN 103354193 B CN103354193 B CN 103354193B
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Abstract
The invention discloses a kind of relay drive circuit and the method controlling relay, belong to computer and the communications field.Relay drive circuit includes: the first switching tube, second switch pipe, the first diode, the first electric capacity, the second electric capacity and the first resistance；First end of the first switching tube is connected with earth terminal, the outfan electrical connection of one end of the second end and the first electric capacity and relay, and the other end of the first electric capacity electrically connects with the 3rd end of second switch pipe；The outfan electrical connection of the first end of second switch pipe and the anode of the first diode and power supply, one end of the second end and the first resistance and one end electrical connection of the second electric capacity；The input electrical connection of the negative electrode of the first diode and the other end of the second electric capacity and relay, the other end of the first resistance electrically connects with the input of power supply.The present invention can make relay accelerate to disconnect or Guan Bi, reduces the time that the attracting process of relay takies, reduces the consumption to electric energy simultaneously.
Description
Technical field
The present invention relates to computer and the communications field, particularly to a kind of method of relay drive circuit and control relay.
Background technology
Along with the development of relay technology, relay is at UPS(UninterruptiblePowerSystem, uninterrupted power source) and inverter equal energy source product in application more and more.Relay is by closing or the mode such as separation plays a part to be automatically adjusted in these products, safeguard protection or change-over circuit, and relay realizes Guan Bi by relay drive circuit or separates.
Referring to Fig. 1, prior art provides a kind of relay drive circuit, including: Mos(MetalOxidSemiconductor, field-effect transistor) pipe G, the first audion Q1, the second audion Q2, the first electric capacity C1, the second electric capacity C2, the first diode D1, the second diode D2, the first resistance R1, the second resistance R2, the 3rd resistance R3 and the four resistance R4.
The source ground of Mos pipe G, drain electrode electrically connects with one end of the 4th resistance R4, one end of the second resistance R2 and the outfan of relay；The other end of the 4th resistance R4 and the base stage electrical connection of the second audion Q2, one end electrical connection of the colelctor electrode of the second audion Q2 and one end of the 3rd resistance R3 and the second electric capacity C2, emitter stage electrically connects with DC source, the anode of the first diode D1 and the anode of the second diode D2；The emitter stage electrical connection of the negative electrode of the second diode D2 and the other end of the second electric capacity C2 and the first audion Q1, the other end ground connection of the 3rd resistance R3；One end electrical connection of the colelctor electrode of the first audion Q1 and one end of the first resistance R1 and the first electric capacity C1, base stage electrically connects with the other end of the second resistance R2；The negative electrode of the first diode D1 electrically connects with the other end of the input of relay and the first electric capacity C1, the other end ground connection of the first resistance R1.
Wherein, when to Mos pipe G input low level signal, Mos pipe G turns off, and relay separates, the first electric capacity C1 and the second electric capacity C2 charging.When to Mos pipe G input high level signal, Mos pipe G, the first audion Q1 and the second audion Q2 conducting, the voltage of DC source arrives A point by the second audion Q2, makes the voltage of A point be equal to the voltage (ignoring the pressure drop that audion produces) of DC source and make the voltage of B point become the voltage of the second electric capacity C2 and the voltage sum of DC source；Owing to the first audion Q1 turns on, so the voltage of C point is equal to the voltage of B electricity point, so that voltage three's sum that the voltage of D point is the voltage of the first electric capacity C1, the voltage of the second electric capacity C2 and DC source, namely voltage three's sum that voltage is the voltage of the first electric capacity C1, the voltage of the second electric capacity C2 and DC source that relay two ends load, and make relay R y to proceed by attracting process, to reach Guan Bi.
In the process realizing the present invention, inventor have found that prior art at least there is problems in that
In the prior art only when relay separates, DC source could be the first electric capacity C1 and the second electric capacity C2 charging, therefore in frequently switching occasion, the time separated due to relay is shorter, cause that the first electric capacity C1 and the second electric capacity C2 does not have time enough to be charged, make the voltage loaded at relay two ends less, cause that the attracting process time of relay is longer；Prior art is after relay adhesive, and the PNP triode of boost pressure circuit is constantly on, and electric energy loss is bigger.
Summary of the invention
The loss of the time that the attracting process in order to reduce relay takies and minimizing electric energy, the invention provides a kind of relay drive circuit and the method controlling relay.Described technical scheme is as follows:
A kind of relay drive circuit, including:
First switching tube, second switch pipe, the first diode, the first electric capacity, the second electric capacity and the first resistance；
First end of described first switching tube is connected with earth terminal, the second end electrically connects with described one end of first electric capacity and the outfan of relay, and the other end of described first electric capacity electrically connects with the 3rd end of described second switch pipe；
First end of described second switch pipe electrically connects with the anode of described first diode and the outfan of described power supply, and the second end electrically connects with one end of one end of described first resistance and described second electric capacity；
The negative electrode of described first diode electrically connects with the input of the other end and described relay with described second electric capacity, and the other end of described first resistance electrically connects with the input of described power supply.
Described relay drive circuit also includes:
3rd switching tube, the 3rd diode, the 3rd electric capacity, the 4th electric capacity and the second resistance；
One end of described 3rd electric capacity electrically connects with the second end of described first switching tube, and the other end electrically connects with the 3rd end of described 3rd switching tube；
First end of described 3rd switching tube electrically connects with the anode of described first diode, the described anode of the 3rd diode and the outfan of described power supply, and the second end electrically connects with one end of one end of described second resistance and described 4th electric capacity；
The other end of described second resistance electrically connects with the input of described power supply, and the other end of described 4th electric capacity electrically connects with the negative electrode of described 3rd diode and the first end of described second switch pipe.
Described relay drive circuit also includes:
Second diode and stabilivolt；The anode of described second diode electrically connects with the outfan of described relay, and negative electrode is connected with the cathodic electricity of described stabilivolt, and the anode of described stabilivolt electrically connects with the input of described relay.Described first switching tube can be audion or Mos pipe etc., and described second switch pipe can be audion or Mos pipe etc., and described 3rd switching tube can be audion or Mos pipe etc..
A kind of relay drive circuit controls the method for relay, and described method includes:
To the 3rd end input high level signal of described first switching tube, make described first switching tube and the conducting of described second switch pipe；The voltage that described power supply is exported through described second switch pipe flow between described first resistance and described second electric capacity so that the voltage superposition of described second electric capacity output voltage and described power supply output is at the input of described relay；Earth terminal is flowed into, so that described relay proceeds by attracting process to reach the purpose of Guan Bi by described relay and described first switching tube.
Described relay drive circuit controls the method for relay and also includes:
While described relay carries out attracting process, described first electric capacity is made to start to charge up；When described first electric capacity is fully charged, described second switch pipe turns off, the voltage of described power supply output is flowed into earth terminal by described first diode, described relay and described first switching tube and is flowed into the input of described power supply by described first diode, described second electric capacity and described first resistance, described second electric capacity charging.
Described relay drive circuit controls the method for relay and also includes:
Turn off to the 3rd end input low level signal of described first switching tube, described first switching tube and described second switch pipe, make described relay separate；Described power output end output voltage returns to the input of described power supply, described second electric capacity charging through described first diode, described second electric capacity and described first resistance.
Described relay drive circuit controls the method for relay and also includes:
When described first switching tube turns off, described relay is from outfan output voltage, and described voltage, through described second diode and described stabilivolt, produces a bigger pressure drop and returns the input of described relay, accelerates described relay and disconnects.
In embodiments of the present invention, owing to described second electric capacity C2 is in two processes of described relay Guan Bi or separation, described second electric capacity C2 can charge, described second electric capacity C2 is so made to be full of electric energy, when controlling described relay Guan Bi, improve the voltage being carried on described relay, shorten described relay further and carry out the time used by attracting process.When described first switching tube turns off, described relay is from outfan output voltage, and described voltage, through described second diode and described stabilivolt, produces a bigger pressure drop and returns the input of described relay, accelerates described relay and disconnects.After relay closes and the level of three-hypers of second switch pipe be driven high, second switch pipe Q2 turns off, the second electric capacity charging, and on the first resistance, no current passes through after fully charged, and therefore audion is constantly on compared to existing technology, it is possible to reduce electric energy loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of relay drive circuit that prior art provides；
Fig. 2 is the first structural representation of a kind of relay drive circuit that the embodiment of the present invention 1 provides；
Fig. 3 is the second structural representation of a kind of relay drive circuit that the embodiment of the present invention 1 provides；
Fig. 4 is the 3rd structural representation of a kind of relay drive circuit that the embodiment of the present invention 1 provides；
Fig. 5 is the 4th structural representation of a kind of relay drive circuit that the embodiment of the present invention 1 provides；
During Fig. 6 the embodiment of the present invention 2 provide a kind of relay drive circuit and control relay flow chart.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
Referring to Fig. 2, the embodiment of the present invention 1 provides a kind of relay drive circuit, including:
First switching tube Q1, second switch pipe Q2, the first diode D1, the first electric capacity C1, the second electric capacity C2 and the first resistance R1.
First end of the first switching tube Q1 is connected with earth terminal, the outfan electrical connection of one end of the second end and the first electric capacity C1 and relay, and the other end of the first electric capacity C1 electrically connects with the 3rd end of second switch pipe Q2；The outfan electrical connection of first end of second switch pipe Q2 and the anode of the first diode D1 and power supply, one end of second end and the first resistance R1 and one end electrical connection of the second electric capacity C2, the negative electrode of the first diode D1 electrically connects with the other end of the input of relay and the second electric capacity C2, and the other end of the first resistance R1 electrically connects with the input of power supply.
Wherein, the first switching tube Q1 can be audion or Mos pipe etc., and second switch pipe Q2 can also be audion or Mos pipe etc..If the first switching tube Q1 and second switch pipe Q2 is audion, then first end of the first switching tube Q1 and second switch pipe Q2 can be emitter stage, and the second end can be colelctor electrode and the 3rd end can be base stage；If the first switching tube Q1 and second switch pipe Q2 is Mos pipe, then first end of the first switching tube Q1 and second switch pipe Q2 can be drain electrode, and the second end can be that source electrode and the 3rd end can for grids.
Relay drive circuit is used for controlling relay Guan Bi or separating.
Wherein, when relay drive circuit controls relay Guan Bi, to the 3rd end input high level signal of the first switching tube Q1, first switching tube Q1 and second switch pipe Q2 conducting, electric power output voltage, this voltage flows to the A point between the first resistance R1 and the second electric capacity C2 through second switch pipe Q2, make the voltage superposition input at relay of the second electric capacity C2 output voltage and power supply output, and flow into earth terminal by relay and the first switching tube Q1, relay proceeds by attracting process, to reach the purpose of Guan Bi.
Wherein, while relay carries out attracting process, first electric capacity C1 starts to charge up, when the first electric capacity C1 is fully charged, second switch pipe Q2 turns off, the voltage of power supply output is flowed into earth terminal by the first diode D1, relay and the first switching tube Q1 and is flowed into the input of power supply by the first diode D1, the second electric capacity C2 and the first resistance R1, the second electric capacity C2 charging.
Wherein, attracting process is the first switching tube Q1 process being conducting to that relay completes to close.
Wherein, to the 3rd end input high level signal of the first switching tube Q1, the first switching tube Q1 conducting, the level of the 3rd end of second end of the first switching tube Q1, the first electric capacity C1 and second switch pipe Q2 is all pulled low as low level, second switch pipe Q2 conducting.After second switch pipe Q2 conducting, the voltage of power supply output arrives the A point between the first resistance R1 and the second electric capacity C2 by second switch pipe Q2, owing to the voltage of the second electric capacity C2 can not suddenly change, the voltage that the voltage of the second electric capacity C2 output exports with power supply is made to be overlapped on the B point that input and the first diode D1 negative electrode of relay are connected, so when starting closing relay, one bigger voltage of superposition on relay, accelerating relay closing course, thus reducing the time shared by relay attracting process.
Wherein, owing to the contained electricity of the second electric capacity C2 is limited, the time of the second electric capacity C2 electric discharge is shorter, so through after a period of time, the second electric capacity C2 stops electric discharge, by electric power output voltage to relay.
Wherein, the voltage of power supply output arrives the first electric capacity C1 one end being connected with the outfan of relay through relay, make the first electric capacity C1 charging, the voltage of one end that the 3rd end of such first electric capacity C1 and second switch pipe Q2 is connected little by little is being elevated, when the first electric capacity C1 is fully charged, second switch pipe Q2 turns off.The voltage of power supply output arrives the outfan of power supply through the first diode D1, the second electric capacity C2 and the first resistance R1, the second electric capacity C2 charging.
Wherein, when relay drive circuit controls relay Guan Bi, to the 3rd end input low level signal of the first switching tube Q1, first switching tube Q1 and second switch pipe Q2 turns off, relay is made to separate, power output end output voltage returns to the input of power supply, the second electric capacity C2 charging through the first diode D1, the second electric capacity C2 and the first resistance R1.
Wherein, the first switching tube Q1 closes and has no progeny, and the voltage of power supply output cannot pass through the first diode D1, relay and the first switching tube Q1 and arrive earth terminal, so relay is initially separated.And, the voltage of the voltage of the 3rd end of second switch pipe Q2 and the outfan of relay is all high level, so second switch pipe Q2 turns off.
Wherein, in embodiments of the present invention, owing to the second electric capacity C2 is in two states of relay closure state or released state, second electric capacity C2 can charge, the second electric capacity C2 is so made to be full of electric energy, when controlling relay Guan Bi, improve the voltage being carried on relay, shorten relay further and carry out the time used by attracting process.It addition, in embodiments of the present invention, only the first resistance R1 consumes electric energy in relay drive circuit, compares the scheme of background technology, it is possible to reduce the consumption to electric energy.
Further, referring to Fig. 3, this relay drive circuit also includes the second diode D2 and stabilivolt E1, and the anode of the second diode D2 electrically connects with the outfan of relay, negative electrode is connected with the cathodic electricity of stabilivolt E1, and the anode of stabilivolt E1 electrically connects with the input of relay.
Wherein, when the first switching tube Q1 turns off, relay is from outfan output voltage, this voltage is through the second diode D2 and stabilivolt E1, a bigger pressure drop can be produced and return the input of relay, so accelerate relay release electric energy, thus accelerating relay separates.
Further, referring to Fig. 4, the driving of this relay is gone back circuit and is included: the 3rd switching tube Q3, the 3rd diode D3, the 3rd electric capacity C3, the 4th electric capacity C4 and the second resistance R2.
One end of 3rd electric capacity C3 electrically connects with second end of the first switching tube Q1, the 3rd end electrical connection of the other end and the 3rd switching tube Q3；First end of the 3rd switching tube Q3 and the anode of the first diode D1, the anode of the 3rd diode D3 and the outfan of power supply electrically connect, one end of second end and the second resistance R2 and one end electrical connection of the 4th electric capacity C4, the other end of the second resistance R2 electrically connects with the input of power supply；The first end electrical connection of the other end of the 4th electric capacity C4 and the negative electrode of the 3rd diode D3 and second switch pipe Q2,
Wherein, the 3rd switching tube Q3 can be audion or Mos pipe etc., if the 3rd switching tube Q3 is audion, then first end of the 3rd switching tube Q3 can be emitter stage, and the second end can be colelctor electrode and the 3rd end can be base stage；If the 3rd switching tube Q3 is Mos pipe, then first end of the 3rd switching tube Q3 can be drain electrode, and the second end can be that source electrode and the 3rd end can for grids.
Wherein, relay drive circuit is used for controlling relay and accelerates Guan Bi or separation.
Wherein, when relay drive circuit controls relay Guan Bi, to the 3rd end input high level signal of the first switching tube Q1, first switching tube Q1, second switch pipe Q2 and the three switching tube Q3 turns on, electric power output voltage, this voltage first passes around the 3rd switching tube Q3 and arrives the C point between the second resistance R2 and the four electric capacity C4, the A point between the second electric capacity C2 and the first resistance R1 is arrived again through the 3rd diode D3 and second switch pipe Q2, and the input of relay is arrived through the first diode D1, make the second electric capacity C2, the voltage superposition of the 4th electric capacity C4 and power supply output is at the input of relay, and flow into earth terminal by relay and the first switching tube Q1, relay proceeds by attracting process, to reach the purpose of Guan Bi.
While relay carries out attracting process, first electric capacity C1 and the three electric capacity C3 starts to charge up, when the first electric capacity C1 and the three electric capacity C3 is fully charged, second switch pipe Q2 and the three switching tube Q3 turns off, the voltage of power supply output flows into earth terminal by the first diode D1, relay and the first switching tube Q1, in addition, the voltage of power supply output flows into the input of power supply by the first diode D1, the second electric capacity C2 and the first resistance R1 so that the second electric capacity C2 charging；The voltage of power supply output flows into the input of power supply also by the 3rd diode D3, the 4th electric capacity C4 and the second resistance R2, the 4th electric capacity C4 charging.
Wherein, attracting process is the first switching tube Q1 process being conducting to that relay completes to close.
Wherein, to the 3rd end input high level signal of the first switching tube Q1, first switching tube Q1 conducting, second end of the first switching tube Q1, the first electric capacity C1, the 3rd end of second switch pipe Q2, the 3rd electric capacity C3 and the three switching tube Q3 the level of the 3rd end be all pulled low as low level, second switch pipe Q2 and the three switching tube Q3 turns on.
nullAfter second switch pipe Q2 and the three switching tube Q3 conducting，The voltage of power supply output first passes around the 3rd switching tube Q3 and arrives the C point between the second resistance R2 and the 4th electric capacity C4，Owing to the voltage of the 4th electric capacity C4 can not suddenly change，Make the 4th electric capacity C4 voltage the exported voltage superposition with power supply output at the negative electrode with the 3rd diode D3、On the D point that first end of second switch pipe Q2 and one end of the 4th electric capacity C4 connect，Afterwards，The voltage of the output on D point arrives the A point between the first resistance R1 and the second electric capacity C2 through second switch pipe Q2 again，Owing to the voltage of the second electric capacity C2 can not suddenly change，Make the voltage of the second electric capacity C2 output and the voltage superposition of the power supply output negative electrode at the first diode D1、On the B point that the other end of the second electric capacity C2 and relay input connect，When so starting closing relay，One bigger voltage of superposition on relay，Accelerate the closing course of relay to a greater extent，Thus more decreasing the time shared by relay attracting process.
Wherein, electricity contained by the second electric capacity C2 and the four electric capacity C4 is limited, and the time of the second electric capacity C2 and the four electric capacity C4 electric discharge is shorter, and therefore after after a while, the second electric capacity C2 and the four electric capacity C4 stops electric discharge, by electric power output voltage to relay.
Wherein, the voltage of power supply output arrives the first electric capacity C1, the 3rd electric capacity C3 and one end of relay output end connection through relay, make the first electric capacity C1 and the three electric capacity C3 charging, therefore, the voltage of one end of the voltage of one end of the three-terminal link of the first electric capacity C1 and second switch pipe Q2 and the three-terminal link of the 3rd electric capacity C3 and the three switching tube Q3 is little by little driven high, when the first electric capacity C1 and the three electric capacity C3 is fully charged, second switch pipe Q2 and the three switching tube Q3 turns off.Now, the voltage of power supply output arrives the input of power supply through the first diode D1, the second electric capacity C2 and the first resistance R1, the second electric capacity C2 charging；The voltage of power supply output also passes through the 3rd diode D3, the 4th electric capacity C4 and the input of the second resistance R2 arrival power supply, the 4th electric capacity C4 charging.
Wherein, when relay drive circuit controls relay Guan Bi, to the 3rd end input low level signal of the first switching tube Q1, first switching tube Q1, second switch pipe Q2 and the three switching tube Q3 turn off, relay is made to separate, power output end output voltage returns to power input through the first diode D1, the second electric capacity C2 and the first resistance R1, the second electric capacity C2 charging；Power output end output voltage also passes through the 3rd diode D3, the 4th electric capacity C4 and the second resistance R2 and returns to the input of power supply, the 4th electric capacity C4 charging.
Wherein, the first switching tube Q1 closes and has no progeny, and the voltage of power supply output cannot pass through the first diode D1, relay and the first switching tube Q1 and arrive earth terminal, so relay is initially separated.Now, the voltage of the outfan of the 3rd end of second switch pipe Q2, the 3rd end of the 3rd switching tube Q3 and relay is all high level, so second switch pipe Q2 and the three switching tube Q3 turns off.
Wherein, in embodiments of the present invention, due to the second electric capacity C2 and the four electric capacity C4 relay Guan Bi or separate two processes in, second electric capacity C2 and the four electric capacity C4 can charge, so make the second electric capacity C2 and the four electric capacity C4 be full of electric energy, when controlling relay Guan Bi, compare the drive circuit of Fig. 2, more increasing the voltage being carried on relay, that more shortens relay carries out the time used by attracting process.In addition, in embodiments of the present invention, owing to only the first resistance R1 and the second resistance R2 consumes electric energy in relay drive circuit, background technology scheme is compared, it is possible to reduce the consumption to electric energy.
Further, referring to Fig. 5, this relay drive circuit also includes the second diode D2 and stabilivolt E1, and the anode of the second diode D2 electrically connects with the outfan of relay, negative electrode is connected with the cathodic electricity of stabilivolt E1, and the anode of stabilivolt E1 electrically connects with the input of relay.
Wherein, when the first switching tube Q1 turns off, relay is from outfan output voltage, this voltage is through the second diode D2 and stabilivolt E1, a bigger pressure drop can be produced and return the input of relay, so accelerate relay release electric energy, thus accelerating relay separates.
In embodiments of the present invention, owing to the second electric capacity C2 and the four electric capacity C4 is in two processes of relay Guan Bi or separation, second electric capacity C2 and the four electric capacity C4 can charge, the second electric capacity C2 and the four electric capacity C4 is so made to be full of electric energy, when controlling relay Guan Bi, improve the voltage being carried on relay, shorten relay further and carry out the time used by attracting process.
Embodiment 2
Referring to Fig. 6, embodiments provide a kind of method that arbitrary relay drive circuit provided by embodiment 1 controls relay, including:
Step 201: to the 3rd end input high level signal of the first switching tube Q1, makes described first switching tube Q1 and the conducting of second switch Q1 pipe；
Step 202: the voltage that power supply exports is flowed between the first resistance R1 and the second electric capacity C2 through the first diode D1 so that the voltage superposition that described second electric capacity C2 output voltage and described power supply export is at the input of relay；
Step 203: flow into earth terminal by described relay and the first switching tube Q1, so that relay proceeds by attracting process to reach the purpose of Guan Bi.
Further, described method also includes:
While described relay carries out attracting process, described first electric capacity C1 is made to start to charge up；
When described first electric capacity C1 is fully charged, described second switch pipe Q2 turns off, the voltage of power supply output is flowed into earth terminal by described first diode D1, described relay and described first switching tube Q1 and is flowed into the input of power supply by described first diode Q1, described second electric capacity C2 and described first resistance R1, described second electric capacity C2 charging.
Further, described method also includes:
Turn off to the 3rd end input low level signal of described first switching tube, described first switching tube Q1 and described second switch pipe Q2, make described relay separate；
Described power output end output voltage returns to the input of described power supply, described second electric capacity C2 charging through described first diode D1, described second electric capacity C2 and described first resistance R1.
Further, described method also includes:
When described first switching tube Q1 turns off, described relay is from outfan output voltage, described voltage through the second diode D2 and stabilivolt E1, produces the input that a bigger pressure drop returns described relay and so accelerates relay release electric energy, thus accelerating relay separates.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a relay drive circuit, it is characterised in that including:
First switching tube, second switch pipe, the first diode, the first electric capacity, the second electric capacity and the first resistance；
First end of described first switching tube is connected with earth terminal, the second end electrically connects with described one end of first electric capacity and the outfan of relay, and the other end of described first electric capacity electrically connects with the 3rd end of described second switch pipe；
First end of described second switch pipe electrically connects with the described anode of the first diode and the outfan of power supply, and the second end electrically connects with one end of one end of described first resistance and described second electric capacity；
The negative electrode of described first diode electrically connects with the other end of described second electric capacity and the input of described relay, and the other end of described first resistance electrically connects with the input of described power supply.
2. relay drive circuit as claimed in claim 1, it is characterised in that also include:
3rd switching tube, the 3rd diode, the 3rd electric capacity, the 4th electric capacity and the second resistance；
One end of described 3rd electric capacity electrically connects with the second end of described first switching tube, and the other end electrically connects with the 3rd end of described 3rd switching tube；
First end of described 3rd switching tube electrically connects with the anode of described first diode, the described anode of the 3rd diode and the outfan of described power supply, and the second end electrically connects with one end of one end of described second resistance and described 4th electric capacity；
The other end of described second resistance electrically connects with the input of described power supply, and the other end of described 4th electric capacity electrically connects with the negative electrode of described 3rd diode and the first end of described second switch pipe.
3. relay drive circuit as claimed in claim 1 or 2, it is characterised in that also include:
Second diode and stabilivolt；
The anode of described second diode electrically connects with the outfan of described relay, and the negative electrode of described second diode is connected with the cathodic electricity of described stabilivolt, and the anode of described stabilivolt electrically connects with the input of described relay.
4. relay drive circuit as claimed in claim 1 or 2, it is characterised in that
Described first switching tube is audion or field-effect transistor.
5. relay drive circuit as claimed in claim 1 or 2, it is characterised in that
Described second switch pipe is audion or field-effect transistor.
6. relay drive circuit as claimed in claim 2, it is characterised in that
Described 3rd switching tube is audion or field-effect transistor.
7. the method controlling relay by the relay drive circuit as described in claim 1 to 6 any one claim, it is characterised in that described method includes:
To the 3rd end input high level signal of described first switching tube, make described first switching tube and the conducting of described second switch pipe；
The voltage that described power supply is exported through described second switch pipe flow between described first resistance and described second electric capacity so that the voltage superposition of described second electric capacity output voltage and described power supply output is at the input of described relay；
Earth terminal is flowed into, so that described relay proceeds by attracting process to reach the purpose of Guan Bi by described relay and described first switching tube.
8. the method that relay drive circuit as claimed in claim 7 controls relay, it is characterised in that described method also includes:
While described relay carries out attracting process, described first electric capacity is made to start to charge up；
When described first electric capacity is fully charged, described second switch pipe turns off, the voltage of described power supply output is flowed into earth terminal by described first diode, described relay and described first switching tube and is flowed into the input of described power supply by described first diode, described second electric capacity and described first resistance, described second electric capacity charging.
9. the method that relay drive circuit as claimed in claim 7 controls relay, it is characterised in that described method also includes:
Turn off to the 3rd end input low level signal of described first switching tube, described first switching tube and described second switch pipe, make described relay separate；
Described power output end output voltage returns to the input of described power supply, described second electric capacity charging through described first diode, described second electric capacity and described first resistance.
10. the method that the relay drive circuit as described in claim 7 to 9 any one claim controls relay, it is characterised in that described method also includes:
When described first switching tube turns off, described relay is from outfan output voltage, and described voltage, through the second diode and stabilivolt, produces a bigger pressure drop and returns the input of described relay, so accelerate relay release electric energy, thus accelerating relay separates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259287.5A CN103354193B (en) | 2013-06-26 | 2013-06-26 | A kind of relay drive circuit and the method controlling relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259287.5A CN103354193B (en) | 2013-06-26 | 2013-06-26 | A kind of relay drive circuit and the method controlling relay |
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| Publication Number | Publication Date |
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| CN103354193A CN103354193A (en) | 2013-10-16 |
| CN103354193B true CN103354193B (en) | 2016-07-06 |
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| CN201310259287.5A Active CN103354193B (en) | 2013-06-26 | 2013-06-26 | A kind of relay drive circuit and the method controlling relay |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880975B (en) * | 2014-02-28 | 2018-11-06 | 深圳市海洋王照明工程有限公司 | Low-voltage chip controls the interface circuit and low-voltage control circuit of high tension apparatus |
| CN104900449B (en) * | 2014-03-03 | 2017-10-10 | 中山市云创知识产权服务有限公司 | Control relay circuit |
| CN105047477A (en) * | 2015-06-15 | 2015-11-11 | 成都广迈科技有限公司 | Relay energy-saving control circuit |
| CN109887802B (en) * | 2019-03-28 | 2020-09-25 | 欣旺达电子股份有限公司 | Relay drive circuit |
| CN113410098B (en) * | 2021-06-30 | 2022-07-19 | 中车株洲电力机车研究所有限公司 | Safe drive circuit of relay |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3781581B2 (en) * | 1999-05-26 | 2006-05-31 | タイガー魔法瓶株式会社 | Relay drive device |
| CN102683112A (en) * | 2012-05-10 | 2012-09-19 | 合肥同智机电控制技术股份有限公司 | Energy-saving controller for coil of relay |
| CN202633176U (en) * | 2012-07-12 | 2012-12-26 | 浙江中凯科技股份有限公司 | Energy-saving device of electromagnetic system and electromagnetic system comprising same |
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2013
- 2013-06-26 CN CN201310259287.5A patent/CN103354193B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3781581B2 (en) * | 1999-05-26 | 2006-05-31 | タイガー魔法瓶株式会社 | Relay drive device |
| CN102683112A (en) * | 2012-05-10 | 2012-09-19 | 合肥同智机电控制技术股份有限公司 | Energy-saving controller for coil of relay |
| CN202633176U (en) * | 2012-07-12 | 2012-12-26 | 浙江中凯科技股份有限公司 | Energy-saving device of electromagnetic system and electromagnetic system comprising same |
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| CN103354193A (en) | 2013-10-16 |
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