CN106100325A - Change-over circuit and include the industrial control equipment of change-over circuit - Google Patents
Change-over circuit and include the industrial control equipment of change-over circuit Download PDFInfo
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- CN106100325A CN106100325A CN201610641293.0A CN201610641293A CN106100325A CN 106100325 A CN106100325 A CN 106100325A CN 201610641293 A CN201610641293 A CN 201610641293A CN 106100325 A CN106100325 A CN 106100325A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Toys (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses a kind of change-over circuit and include the industrial control equipment of change-over circuit.Wherein, a kind of change-over circuit, including signaling conversion circuit, and the triggering drive circuit that is connected with described signaling conversion circuit and the first filter circuit；Trigger drive circuit, be connected with sensor, be used for obtaining sensor signal, and amplify the sensor signal of access；Signaling conversion circuit, the sensor signal after amplifying is converted to control the dry contact signal of break-make and export；First filter circuit, the noise in the dry contact signal reducing output.Signal adapter will amplify after sensor signal be converted into signal receiver can receive identification signal, by signaling conversion circuit, different sensor signals can be converted into conventional dry contact signal, enable the most adaptive existing signal receiver of different types of sensor, relevant industrial control equipment exploitation complexity is reduced, shortens the development time.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of change-over circuit and include the industrial control equipment of change-over circuit.
Background technology
In current industrial control product exploitation design, for realizing can being connected, generally between each hardware or between each electrical interface
Need to use change-over circuit.
Under normal circumstances, the signal that different types of sensor is exported is the most identical, such as some sensor output
Be 5V CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductors (CMOS)) electricity
Ordinary mail number, the output of some sensor is then OC (Open Collector, the open collector) level signal without pull-up.In order to
These different types of sensor signals adaptive, signal receiver end generally requires and does specific circuit design.Additionally, industry control is produced
Product design in commonly used ready-made signal receiver, signal receiver be simultaneously connected with different types of sensor, microswitch,
Display lamps etc., this makes the adaptation between sensor and signal receiver become more difficult.
It addition, when using different types of sensor, these different types of sensor major parts need to use specific
DC source power, therefore generally require this is carried out individually designed.
Summary of the invention
For solving Related Technical Issues, the present invention provides a kind of change-over circuit and has the industrial control equipment of change-over circuit, can
With the dry contact signal being converted to commonly use by the signal that different sensors exports, to solve the problems referred to above.
The embodiment of the present invention provides a kind of change-over circuit, including signaling conversion circuit, and be connected with signaling conversion circuit
Trigger drive circuit and the first filter circuit；
Trigger drive circuit, be connected with sensor, be used for obtaining sensor signal, and amplify the sensor signal of access；
Signaling conversion circuit, the sensor signal after amplifying is converted to control the dry contact signal of break-make defeated
Go out；
First filter circuit, the noise in the dry contact signal reducing output.
Wherein, triggering drive circuit and include resistance R1, resistance R2 and audion Q1, signaling conversion circuit includes relay
RL1 and diode D1, the first filter circuit includes electric capacity C1 and resistance R3；Wherein, a termination+5V of resistance R1, the other end is even
One end of connecting resistance R2；The base stage of audion Q1 connects the other end of resistance R2, and colelctor electrode connects the anode of diode D1 and continues
The pin 2 of electrical equipment RL1, grounded emitter；The pin 1 of relay R L1 connects the negative electrode of diode D1 and meets+5V, and pin 3 connects
One end of resistance R3, pin 4 connects one end of electric capacity C1；The other end of electric capacity C1 connects the other end of resistance R3.
Wherein, the model of relay R L1 is G6L-1F-5VDC, and the model of diode D1 is B360A-13F, audion Q1
Model be S9013SMD, the resistance of resistance R1 is 2.2K Ω, and resistance R2 is Zero-ohm resistor, and the resistance of resistance R3 is 1K Ω,
The capacitance of electric capacity C1 is 0.1 μ f.
Wherein, resistance R1 and resistance R2 is the adjustable resistance of resistance.
Wherein, also include voltage conversion circuit, and the second filter circuit and the 3rd being connected with voltage conversion circuit filters
Circuit；
Second filter circuit, is used for accessing supply voltage, and reduces the noise of supply voltage；
Voltage conversion circuit, for being converted to the direct voltage output set by supply voltage；
3rd filter circuit, is connected with sensor, for reducing the noise of the DC voltage of setting, and is carried by DC voltage
Supply sensor.
Wherein, the second filter circuit includes diode D2, electrochemical capacitor C2, electric capacity C3 and electric capacity C4, voltage conversion circuit
Including manostat U1, the 3rd filter circuit includes electric capacity C5 and electric capacity C6；Wherein, the anode of diode D2 accesses supply voltage,
Negative electrode connects the positive pole of electrochemical capacitor C2, one end of electric capacity C3, one end of electric capacity C4 and the pin 3 of manostat U1；Manostat U1
The negative pole of pin 1 electrochemical capacitor C2, the other end of electric capacity C3, the other end of electric capacity C4, one end of electric capacity C5 and electric capacity C6
One end, pin 2 and pin 4 are all connected with the other end and the other end of electric capacity C6 of electric capacity C5.
Wherein, the model of diode D2 is B360A-13F, and the model of manostat U1 is TLV1117-50IDCYR, electrolysis electricity
The capacitance holding C2 is 220 μ f, and the capacitance of electric capacity C3 and electric capacity C5 is 1 μ f, and the capacitance of electric capacity C4 and electric capacity C6 is 0.1 μ f.
The embodiment of the present invention also provides for a kind of industrial control equipment, including above-mentioned change-over circuit, also include the first adapter J1, the
Two adapter J2, sensor and signal receiver；Wherein, sensor and the first adapter J1 connect；The pin 1 of the first adapter
Connect one end and one end of resistance R2 of resistance R1；Signal receiver and the second adapter J2 connect；Second adapter J2 draws
Foot 1 connects pin 3 and one end of resistance R3 of relay R L1, and pin 2 connects the pin 4 and the one of electric capacity C1 of relay R L1
End.
Wherein, the first adapter J1 includes sensor interface, and the second adapter J2 includes signal receiver interface；
Sensor interface, is used for connecting sensor；
Signal receiver interface, is used for connecting signal receiver.
Wherein, also include that the 3rd adapter J3, the 3rd adapter J3 are connected with power supply；The pin 1 of the 3rd adapter J3 with
The pin 1 of manostat U1 connects and ground connection, and pin 2 is connected with the anode of diode D2；The pin 2 of the first adapter J1 connects surely
The pin 1 of depressor U1 ground connection, pin 3 connects pin 2 and pin 4, one end of electric capacity C5 and the one of electric capacity C6 of relay U1
End.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought:
In the technical program, different sensor signals can be converted into conventional dry contact by signaling conversion circuit
Signal, enables the most adaptive existing signal receiver of different types of sensor.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in the embodiment of the present invention being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only some enforcements of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to implements according to the present invention
The content of example and these accompanying drawings obtain other accompanying drawing.
Fig. 1 is the square frame principle schematic diagram of a kind of change-over circuit that the embodiment of the present invention provides；
Fig. 2 is the square frame principle schematic diagram of the another kind of change-over circuit that the embodiment of the present invention provides；
Fig. 3 is the circuit theory schematic diagram of a kind of change-over circuit that the embodiment of the present invention provides；
Fig. 4 is the structural representation of a kind of industrial control equipment including change-over circuit that the embodiment of the present invention provides.
Detailed description of the invention
Technical scheme and the technique effect reached for making to present invention solves the technical problem that, using are clearer, below
By combining accompanying drawing, the technical scheme of the embodiment of the present invention is described in further detail, it is clear that described embodiment is only
It is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those skilled in the art exist
Do not make the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1 to Fig. 3, it is the square frame principle signal of a kind of change-over circuit that the embodiment of the present invention provides respectively
Figure, the square frame principle schematic diagram of another kind of change-over circuit and the circuit theory schematic diagram of a kind of change-over circuit.The embodiment of the present invention
In change-over circuit be mainly used in solving the adaptation issues between sensor and existing signal receiver.Dry contact signal is a kind of
Electric switch signal, has the effect controlling break-make.
As it is shown in figure 1, a kind of change-over circuit, including signaling conversion circuit 20, and is connected with signaling conversion circuit 20 tactile
Send out drive circuit 10 and the first filter circuit 30；
Above-mentioned triggering drive circuit 10, is connected with sensor 70, is used for obtaining sensor signal, and amplifies the sensing of access
Device signal；
Above-mentioned signaling conversion circuit 20, the sensor signal after amplifying is converted to control the dry contact letter of break-make
Number and export；
Above-mentioned first filter circuit 30, the noise in the dry contact signal reducing output.
In the present embodiment, general sensor signal is on the weak side, could drive signal after needing to amplify sensor signal
Change-over circuit 20 works, when the sensor signal difference accessed, by adjusting the resistance parameter triggered within drive circuit 10,
The output valve that can realize triggering drive circuit 10 is held essentially constant；Along with the low and high level in the sensor signal accessed more
Replacing, signaling conversion circuit 20 is in energising and off-position the most accordingly, thus produces the dry contact signal that can control break-make.Signal
The dry contact signal of change-over circuit 20 output may there is more noise, need by ability after the first filter circuit reduction noise
It is transferred to signal receiver 80.By signaling conversion circuit 20, different sensor signals is converted into conventional dry contact to believe
Number, make different types of sensor 70 can the most adaptive existing message recipient 80.
Preferably, as it is shown on figure 3, trigger drive circuit 10 to include resistance R1, resistance R2 and audion Q1, signal conversion electricity
Road 20 includes that relay R L1 and diode D1, the first filter circuit 30 include electric capacity C1 and resistance R3；Wherein, the one of resistance R1
Termination+5V, the other end connects one end of resistance R2；The base stage of audion Q1 connects the other end of resistance R2, and colelctor electrode connects two
The anode of pole pipe D1 and the pin 2 of relay R L1, grounded emitter；The pin 1 of relay R L1 connects the negative electrode of diode D1
And meeting+5V, pin 3 connects one end of resistance R3, and pin 4 connects one end of electric capacity C1；The other end of electric capacity C1 connects resistance R3
The other end.
It should be noted that in the present embodiment, sensor signal PN_IN of access is amplified rear drive through audion Q1 and is continued
Electrical equipment RL1 works, and when the base stage of audion Q1 is in the high level of sensor signal PN_IN, audion Q1 is in saturated leading
Logical state, colelctor electrode is in low level, therefore the coil electricity of relay R L1, when the base stage of audion Q1 is in sensor letter
During the low level of number PN_IN, audion Q1 ends, the coil blackout of relay R L1, thus produces the dry contact that can control break-make
Signal.Relay R L1 can be by dry contact signal PN_OUT_P and PN_ after sensor signal PN_IN before conversion, with conversion
OUT_N is completely isolated, prevents from causing sensor and signal receiver to damage because level is inconsistent.Diode D1 is afterflow two pole
Pipe, can prevent the direction electromotive force of relay R L1 coil from damaging audion Q1.Will sensing if in other embodiments, needed
Device signal is converted to the level signal of other forms, then can add pull-up resistor at signal output part, can be believed by sensor
Number it is converted into corresponding required level signal.
Further, as it is shown on figure 3, the model of relay R L1 is G6L-1F-5VDC, the model of diode D1 is
B360A-13F, the model of audion Q1 is S9013SMD, and the resistance of resistance R1 is 2.2K Ω, and resistance R2 is Zero-ohm resistor, electricity
The resistance of resistance R3 is 1K Ω, and the capacitance of electric capacity C1 is 0.1 μ f.It should be noted that the resistance of resistance R1 and resistance R2 can basis
Different sensor signals is adjusted.
Preferably, resistance R1 and resistance R2 is the adjustable resistance of resistance.When accessing different sensor signals, pass through
Adjust resistance R1 and the resistance of resistance R2, it is achieved the base stage of audion Q1 and the pressure drop launching interpolar are more than 0.7V, i.e. audion
Q1 works in saturation, thus realizes different sensor signals output valve after audion Q1 and be basically unchanged.
Preferably, as in figure 2 it is shown, also include voltage conversion circuit 50, and the second filter being connected with voltage conversion circuit 50
Wave circuit 40 and the 3rd filter circuit 60；
Above-mentioned second filter circuit 40, is used for accessing supply voltage, and reduces the noise of supply voltage；
Above-mentioned voltage conversion circuit 50, for being converted to the direct voltage output set by supply voltage；
Above-mentioned 3rd filter circuit 60, is connected with sensor 70, for reducing the noise of the DC voltage of setting, and will be straight
Stream voltage is supplied to sensor 70.
In the present embodiment, the second filter circuit 40 reduces the noise in the supply voltage accessed, voltage conversion circuit 50
Supply voltage after noise filtering is converted into the DC voltage of setting needed for sensor 70, and exports this DC voltage, the 3rd
Filter circuit 60 is powered for sensor 70 after reducing the noise in this DC voltage；The electricity that will be accessed by voltage conversion circuit 50
Source voltage is converted to the DC voltage set, and uses for sensor 70, it is not necessary to for the individually designed circuit of different sensors, save
Production cost.
Preferably, the second filter circuit 40 includes diode D2, electrochemical capacitor C2, electric capacity C3 and electric capacity C4, and voltage is changed
Circuit 50 includes that manostat U1, the 3rd filter circuit 60 include electric capacity C5 and electric capacity C6；Wherein, the anode of diode D2 accesses electricity
Source voltage, negative electrode connects the positive pole of electrochemical capacitor C2, one end of electric capacity C3, one end of electric capacity C4 and the pin 3 of manostat U1；Surely
The negative pole of pin 1 electrochemical capacitor C2, the other end of electric capacity C3, the other end of electric capacity C4, one end of electric capacity C5 and the electricity of depressor U1
Holding one end of C6, pin 2 and pin 4 are all connected with the other end and the other end of electric capacity C6 of electric capacity C5.Diode D2 can prevent because of
Reverse power connection causes damaging sensor and signal receiver.
Further, the model of diode D2 is B360A-13F, and the model of manostat U1 is TLV1117-50IDCYR, electricity
The capacitance solving electric capacity C2 is 220 μ f, and the capacitance of electric capacity C3 and electric capacity C5 is 1 μ f, and the capacitance of electric capacity C4 and electric capacity C6 is 0.1
μf。
Further, the anode of diode D2 accesses 12V direct current power source voltage, and pin 2 and the pin 4 of manostat U1 export
5V DC voltage.It should be noted that in other embodiments, if sensor need to use the DC voltage of other numerical value, then
It is the manostat of TLV1117-50IDCYR that the manostat that model can be used to be TLV1117-50IDCYR substitutes above-mentioned model, model
Output voltage for the manostat of TLV1117-50IDCYR is adjustable.
The change-over circuit of the present embodiment, can repeat multichannel use and be designed in one piece of veneer, public as different sensors
Adaptation board, be very easy to product design and type selecting.
Refer to Fig. 4, it is the structural representation of a kind of industrial control equipment including change-over circuit that the embodiment of the present invention provides
Figure.As it can be seen, a kind of industrial control equipment, the change-over circuit provided including any embodiment of the present invention, also include the first connection
Device J1, the second adapter J2, sensor 70 and signal receiver 80；Wherein, sensor 70 is connected with the first adapter J1；First
The pin 1 of adapter connects one end and one end of resistance R2 of resistance R1；Signal receiver 80 is connected with the second adapter J2；The
The pin 1 of two adapter J2 connects pin 3 and one end of resistance R3 of relay R L1, and pin 2 connects the pin 4 of relay R L1
One end with electric capacity C1.
In the present embodiment, the first adapter J1 has foolproof function, can prevent the most anti-inserted or wrong plug, logical
Crossing signaling conversion circuit 20 and the signal of sensor 70 is converted into conventional dry contact signal, in industrial control equipment, sensor 70 can
The existing message recipient 80 used in adaptive industrial control equipment easily.
Preferably, the first adapter J1 includes that sensor interface (not shown), the second adapter J2 include signal receiver
Interface (not shown)；
The sensor interface, is used for connecting sensor 70；
Above-mentioned signal receiver interface, is used for connecting signal receiver 80.
Preferably, also include that the 3rd adapter J3, the 3rd adapter J3 are connected with power supply；The pin 1 of the 3rd adapter J3
Being connected with the pin 1 of manostat U1 and ground connection, pin 2 is connected with the anode of diode D2, and the pin 2 of the first adapter J1 connects
The pin 1 of manostat U1 ground connection, pin 3 connects the pin 2 of relay U1 and pin 4, one end of electric capacity C5 and electric capacity C6
One end.The power end (not shown) of the pin 1 of the first adapter and pin 3 respective sensor 70 respectively and signal output part (figure
Do not show), the 3rd adapter J3 includes the power interface (not shown) for connecting DC source, by this power interface the 3rd even
Meet device J3 and connect DC source.
In the present embodiment, by voltage conversion circuit 50 be converted to the supply voltage that industrial control equipment accesses to set straight
Stream voltage, uses with the sensor 70 in work control device, it is not necessary to for the individually designed circuit of different sensors in industrial control equipment, joint
Save production cost.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious change,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although by above example, the present invention is carried out
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a change-over circuit, it is characterised in that include signaling conversion circuit, and the triggering being connected with described signaling conversion circuit
Drive circuit and the first filter circuit；
Described triggering drive circuit, is connected with sensor, is used for obtaining sensor signal, and amplifies the sensor signal of access；
Described signaling conversion circuit, the sensor signal after amplifying is converted to control the dry contact signal of break-make defeated
Go out；
Described first filter circuit, the noise in the dry contact signal reducing described output.
2. change-over circuit as claimed in claim 1, it is characterised in that described triggering drive circuit includes resistance R1, resistance R2
With audion Q1, described signaling conversion circuit includes that relay R L1 and diode D1, described first filter circuit include electric capacity C1
With resistance R3；Wherein, a termination+5V of resistance R1, the other end connects one end of resistance R2；The base stage of audion Q1 connects resistance
The other end of R2, colelctor electrode connects anode and the pin 2 of relay R L1, the grounded emitter of diode D1；Relay R L1
Pin 1 connects the negative electrode of diode D1 and meets+5V, and pin 3 connects one end of resistance R3, and pin 4 connects one end of electric capacity C1；Electricity
The other end holding C1 connects the other end of resistance R3.
3. change-over circuit as claimed in claim 2, it is characterised in that the model of described relay R L1 is G6L-1F-5VDC,
The model of diode D1 is B360A-13F, and the model of audion Q1 is S9013SMD, and the resistance of resistance R1 is 2.2K Ω, resistance
R2 is Zero-ohm resistor, and the resistance of resistance R3 is 1K Ω, and the capacitance of electric capacity C1 is 0.1 μ f.
4. change-over circuit as claimed in claim 2, it is characterised in that it is adjustable that described resistance R1 and described resistance R2 is resistance
Resistance.
5. the change-over circuit as described in claim 2-4 any one claim, it is characterised in that also include voltage conversion electricity
Road, and the second filter circuit of being connected with described voltage conversion circuit and the 3rd filter circuit；
Described second filter circuit, is used for accessing supply voltage, and reduces the noise of described supply voltage；
Described voltage conversion circuit, for being converted to the direct voltage output set by described supply voltage；
Described 3rd filter circuit, is connected with sensor, for reducing the noise of the DC voltage of described setting, and by unidirectional current
Pressure is supplied to described sensor.
6. change-over circuit as claimed in claim 5, it is characterised in that described second filter circuit includes diode D2, electrolysis
Electric capacity C2, electric capacity C3 and electric capacity C4, described voltage conversion circuit includes that manostat U1, described 3rd filter circuit include electric capacity C5
With electric capacity C6；Wherein, the anode of diode D2 accesses described supply voltage, and negative electrode connects the positive pole of electrochemical capacitor C2, electric capacity C3
The pin 3 of one end, one end of electric capacity C4 and manostat U1；The negative pole of pin 1 electrochemical capacitor C2 of manostat U1, electric capacity C3
The other end, the other end of electric capacity C4, one end of electric capacity C5 and one end of electric capacity C6, pin 2 and pin 4 are all connected with the another of electric capacity C5
One end and the other end of electric capacity C6.
7. change-over circuit as claimed in claim 6, it is characterised in that the model of described diode D2 is B360A-13F, voltage stabilizing
The model of device U1 is TLV1117-50IDCYR, and the capacitance of electrochemical capacitor C2 is 220 μ f, and the capacitance of electric capacity C3 and electric capacity C5 is 1
μ f, the capacitance of electric capacity C4 and electric capacity C6 is 0.1 μ f.
8. an industrial control equipment, it is characterised in that include the change-over circuit described in claim any one of claim 5 to 7,
Also include the first adapter J1, the second adapter J2, sensor and signal receiver；Wherein, described sensor and described first
Adapter J1 connects；The pin 1 of described first adapter connects one end and one end of resistance R2 of resistance R1；Described signal receives
Device is connected with described second adapter J2；The pin 1 of described second adapter J2 connects pin 3 and the resistance R3 of relay R L1
One end, pin 2 connects pin 4 and one end of electric capacity C1 of relay R L1.
9. industrial control equipment as claimed in claim 8, it is characterised in that described first adapter J1 includes sensor interface, institute
State the second adapter J2 and include signal receiver interface；
Described sensor interface, is used for connecting described sensor；
Described signal receiver interface, is used for connecting described signal receiver.
10. industrial control equipment as claimed in claim 8, it is characterised in that also include the 3rd adapter J3, described 3rd adapter
J3 is connected with power supply；The described pin 1 of the 3rd adapter J3 is connected with the pin 1 of manostat U1 and ground connection, pin 2 and diode
The anode of D2 connects；The pin 2 of described first adapter J1 connects pin 1 ground connection of manostat U1, and pin 3 connects relay
The pin 2 of U1 and pin 4, one end of electric capacity C5 and one end of electric capacity C6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610641293.0A CN106100325B (en) | 2016-08-05 | 2016-08-05 | Conversion circuit and industrial control equipment including conversion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610641293.0A CN106100325B (en) | 2016-08-05 | 2016-08-05 | Conversion circuit and industrial control equipment including conversion circuit |
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| CN106100325A true CN106100325A (en) | 2016-11-09 |
| CN106100325B CN106100325B (en) | 2019-04-12 |
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| CN201610641293.0A Expired - Fee Related CN106100325B (en) | 2016-08-05 | 2016-08-05 | Conversion circuit and industrial control equipment including conversion circuit |
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| Publication number | Publication date |
|---|---|
| CN106100325B (en) | 2019-04-12 |
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Granted publication date: 20190412 Termination date: 20210805 |