CN202994895U - Voltage acquisition device of multiple-voltage-level automatic change-over switch controller - Google Patents
Voltage acquisition device of multiple-voltage-level automatic change-over switch controller Download PDFInfo
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- CN202994895U CN202994895U CN 201220699931 CN201220699931U CN202994895U CN 202994895 U CN202994895 U CN 202994895U CN 201220699931 CN201220699931 CN 201220699931 CN 201220699931 U CN201220699931 U CN 201220699931U CN 202994895 U CN202994895 U CN 202994895U
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Abstract
The utility model relates to a voltage acquisition device of a multiple-voltage-level automatic change-over switch controller. The automatic change-over switch controller comprises six voltage acquisition circuits, wherein each voltage acquisition circuit is mainly composed of a dual-path multiple-voltage-level signal acquisition circuit, a controller working power supply circuit, a controller driving circuit and the like. The voltage signal acquisition circuits acquire voltage signals under the control of micro control units (MCU), input and output operations are carried out and actions of a change-over circuit driving system are completed by connecting a display and keyboard input circuit through I/O ports of the micro control units (MCU) themselves, the acquisition of the controller is carried out by using an MCU-I/O port used for judging the level fluctuation, and preliminary acquisition of two channels of power voltage signals is performed by using the same six voltage acquisition circuits. Therefore, the voltage acquisition device of the multiple-voltage-level automatic change-over switch controller is convenient to adjust, reliable, and simple in structure, materials can be saved, the difficulty that a traditional automatic change-over switch cannot be used in more than one voltage level is overcome, and convenience is provided for users in use and adjustment.
Description
Technical field
The utility model belongs to a kind of automatic transfer switch controller, particularly relates to a kind of multi-voltage grade automatic transfer switch controller voltage collecting device.
Background technology
The electric pressure that adopts in the world now mostly is rated line voltage AC690V, AC400V, AC230V rated frequency 50～60Hz electrical network, along with China undertakes all kinds of international large-scale activities and accepts external heavy construction, day by day once many with the cooperation of the world each electricity power solution company, be used for power-supply unit that all kinds of important events do not allow to cut off the power supply and mostly be the movable type system that supplies power with double circuit, critical piece automatic change over wherein will adapt to above all kinds of electric pressure occasion; The execution isolating switch of automatic change over itself possesses the condition of work under the multi-voltage grade environment, but to be fit to the controller of type according to power supply environment coupling as controller, be unfavorable for general under the multivoltage environment and increased debugging difficulty before equipment uses.
Summary of the invention
The utility model for solve the technical matters that exists in known technology provide a kind of can be under the multivoltage environment general, the multi-voltage grade automatic transfer switch controller voltage collecting device that is user-friendly to and adjusts.
the technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: it includes six road voltage collection circuits described automatic transfer switch controller, wherein every road voltage collection circuit includes single-chip microcomputer, analog switch, and it is characterized in that: described every road voltage collection circuit also includes first and second integrated operational amplifier, power supply phase line (NU) accesses by first successively by terminal, two, three, four, five resistance (R1, R2, R3, R4, R5) the current-limiting resistance networking that composes in series also is connected to power supply (NN) utmost point, described the 4th resistance (R4) two ends also connect an anti-interference filtration electric capacity (C1) for anti-interference, the filtering high frequency interference, described the 4th resistance (R4) is connected the 5th resistance (R5) and is connected with current-limiting resistance with the circuit reference data as sampling resistor one end, the other end of described the 4th resistance (R4) is connected with an end of described the 3rd resistance R 3 and accesses described the first operational amplifier (U1A) in-phase input end, described the first operational amplifier (U1A) inverting input and output terminal connect to form follower, described follower output terminal is connected to described the second operational amplifier (U1B) inverting input by the 6th resistance (R6), described the second operational amplifier (U1B) inverting input connects respectively the 7th, eight, nine resistance (R7, R8, R9) simultaneously, the other end of described the 7th, eight, nine resistance (R7, R8, R9) connects respectively X0, X1, the X2 end of described analog switch (U2), and described the second operational amplifier (U1B) in-phase input end is by the tenth resistance (R10) access reference power source+VERF Lifting Modules analog signal reference potential, described analog switch (U2), described the second operational amplifier (U1B) and described the 6th, seven, eight, nine, ten resistance (R6, R7, R8, R9, R10) form the negative feedback ratio amplifying circuit that can select magnification ratio, and the wherein said the 7th and the 6th resistance (R7, R6), the described the 8th and the 6th resistance (R8, R6), the described the 9th and the 6th resistance (R9, R6) form three kinds of FBN feedback networks, three kinds of described the 7th, eight, nine resistance of feedback resistance (R7, R8, R9) access input port X0, X1, the X2 of described analog switch (U2) circuit, the feedback network that output port X access described the second operational amplifier (U1B) output terminal is controlled by described analog switch (U2), the control of feedback network changes by the height of three output port IO (MCU-I/O) of single-chip microcomputer control end A, B, the C control conducting circuit control feedback proportional network that drives described analog switch (U2), described the second operational amplifier (U1B) output terminal is connected with MCU-AD analog to digital conversion port and enters single-chip microcomputer and carry out analog to digital conversion.
advantage and the good effect that the utlity model has are: circuit is controlled the voltage signal acquisition circuit by single-chip microcomputer (MCU) and is carried out voltage signal acquisition, and carry out input-output operation by I/O mouth connection demonstration and the keyboard input circuit of single-chip microcomputer (MCU) itself, with the execution of change-over circuit drive system, the MCU-I/O port processing that the collection of controller uses decision level to change, six road identical voltage collection circuits are used in the preliminary collection of two-way power supply voltage signal, signal carries out analog to digital conversion by entering MCU-AD Chip Microcomputer A/D modular converter after changing and nursing one's health during this time, single-chip microcomputer comes control inputs to the signal amplitude of single-chip microcomputer by the feedback network of MCU-I/O port controlling U2 analog switch.Have so easy to adjust, reliable, simple in structurely, save material, overcome the difficulty that traditional automatic change over can not use simultaneously on more than one electric pressures, convenient for users and adjust.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is control flow chart of the present utility model.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
it includes six road voltage collection circuits automatic transfer switch controller, wherein the formation of every road voltage collection circuit is identical, take wherein one the road as example: as shown in Figure 1, power supply phase line NU accesses by resistance R 1 successively by terminal, R2, R3, R4, the current-limiting resistance networking that R5 composes in series also is connected to the power supply NN utmost point, resistance R 4 two ends also connect an anti-interference filtration capacitor C 1 for anti-interference, the filtering high frequency interference, resistance R 4 is connected with current-limiting resistance R5 with the circuit reference data as sampling resistor one end, the other end (with the R3 link) access operational amplifier U1A in-phase input end, operational amplifier U1A inverting input and output terminal connect to form follower, the follower output terminal connects by operational amplifier U1B inverting input by resistance R 6, while operational amplifier U1B inverting input is contact resistance R7, R8, R9 respectively, resistance R 7, R8, the R9 other end connect respectively X0, X1, the X2 end of U2, and operational amplifier U1B in-phase input end is by resistance R 10 access reference power source+VERF Lifting Modules analog signal reference potentials, analog switch U2, operational amplifier U1B and R6, R7, R8, R9, R10 form the negative feedback ratio amplifying circuit that can select magnification ratio, and wherein R7 and R6, R8 and R6, R9 and R6 form three kinds of FBN feedback networks, three kinds of feedback resistance R7, R8, R9 access input port X0, X1, the X2 of analog switch U2 circuit, the feedback network that output port X access operational amplifier U1B output terminal is controlled by analog switch U2, the control of feedback network is controlled conducting circuit control feedback proportional network by control end A, B, the C that the height of three output port IO (MCU-I/O) of single-chip microprocessor MCU changes drive analog switch U2, operational amplifier U1B output terminal is connected with MCU-AD analog to digital conversion port and enters single-chip microprocessor MCU and carry out analog to digital conversion.
Power supply phase line NV accesses successively the current-limiting resistance networking that is composed in series by resistance R 11, R12, R13, R14, R15 and is connected to the power supply NN utmost point by terminal, resistance R 14 two ends also connect an anti-interference filtration capacitor C 2 for anti-interference, the filtering high frequency interference, resistance R 14 is connected with current-limiting resistance R15 with the circuit reference data as sampling resistor one end, the other end (with the R13 link) access operational amplifier U3A in-phase input end, operational amplifier U3A inverting input and output terminal connect to form follower; The follower output terminal connects by operational amplifier U3B inverting input by resistance R 16, while operational amplifier U3B inverting input is contact resistance R17, R18, R19 respectively, resistance R 17, R18, the R19 other end connect respectively X0, X1, the X2 end of U4, and operational amplifier U3B in-phase input end is by resistance R 20 access reference power source+VERF Lifting Modules analog signal reference potentials; Analog switch U4, operational amplifier U3B and R16, R17, R18, R19, R20 form the negative feedback ratio amplifying circuit that can select magnification ratio, and wherein R17 and R16, R18 and R16, R19 and R16 form three kinds of FBN feedback networks; Three kinds of feedback resistance R17, R18, R19 access input port X0, X1, the X2 of analog switch U4 circuit, the feedback network that output port X access operational amplifier U3B output terminal is controlled by analog switch U4, the control of feedback network is controlled conducting circuit control feedback proportional network by control end A, B, the C that the height of three output port IO (MCU-I/O) of single-chip microprocessor MCU changes drive analog switch U4; Operational amplifier U3B output terminal is connected with MCU-AD analog to digital conversion port and enters single-chip microprocessor MCU and carry out analog to digital conversion.
Other circuit of four tunnel consist of with above identical.
As shown in Figure 2, the control program flow process of single-chip microcomputer is for wherein one the tunnel being:
(1) entering software module begins;
(2) the single-chip microcomputer controller rated voltage that reads in advance or preset is set; The system that is extracted into is as correction data;
(3) judge rated voltage sets with the residing control mode of controller whether be in correct rated voltage pattern; If type of drive at that time is consistent with setting, skip following actuation step, the 5th step program that skips to is finished; If it is inconsistent that type of drive at that time and rated voltage are set, order is carried out next step;
(4) read correct driving parameter, drive A, B, the C current potential of single-chip microprocessor MCU-I/O control simulation switch U2, switching proportion amplifier U1B feedback network enlargement factor; Update system related setting parameter;
(5) driving is completed, EOP (end of program).
The control program flow process of single-chip microcomputer to other flow processs of five tunnel with above identical.
Claims (1)
1. multi-voltage grade automatic transfer switch controller voltage collecting device, it includes six road voltage collection circuits described automatic transfer switch controller, wherein every road voltage collection circuit includes single-chip microcomputer, analog switch, and it is characterized in that: described every road voltage collection circuit also includes first and second integrated operational amplifier, power supply phase line (NU) accesses by first successively by terminal, two, three, four, five resistance (R1, R2, R3, R4, R5) the current-limiting resistance networking that composes in series also is connected to power supply (NN) utmost point, described the 4th resistance (R4) two ends also connect an anti-interference filtration electric capacity (C1) for anti-interference, the filtering high frequency interference, described the 4th resistance (R4) is connected the 5th resistance (R5) and is connected with current-limiting resistance with the circuit reference data as sampling resistor one end, the other end of described the 4th resistance (R4) is connected with an end of described the 3rd resistance R 3 and accesses described the first operational amplifier (U1A) in-phase input end, described the first operational amplifier (U1A) inverting input and output terminal connect to form follower, described follower output terminal is connected to described the second operational amplifier (U1B) inverting input by the 6th resistance (R6), described the second operational amplifier (U1B) inverting input connects respectively the 7th, eight, nine resistance (R7, R8, R9) simultaneously, the other end of described the 7th, eight, nine resistance (R7, R8, R9) connects respectively X0, X1, the X2 end of described analog switch (U2), and described the second operational amplifier (U1B) in-phase input end is by the tenth resistance (R10) access reference power source+VERF Lifting Modules analog signal reference potential, described analog switch (U2), described the second operational amplifier (U1B) and described the 6th, seven, eight, nine, ten resistance (R6, R7, R8, R9, R10) form the negative feedback ratio amplifying circuit that can select magnification ratio, and the wherein said the 7th and the 6th resistance (R7, R6), the described the 8th and the 6th resistance (R8, R6), the described the 9th and the 6th resistance (R9, R6) form three kinds of FBN feedback networks, three kinds of described the 7th, eight, nine resistance of feedback resistance (R7, R8, R9) access input port X0, X1, the X2 of described analog switch (U2) circuit, the feedback network that output port X access described the second operational amplifier (U1B) output terminal is controlled by described analog switch (U2), the control of feedback network changes by the height of three output port IO (MCU-I/O) of single-chip microcomputer control end A, B, the C control conducting circuit control feedback proportional network that drives described analog switch (U2), described the second operational amplifier (U1B) output terminal is connected with MCU-AD analog to digital conversion port and enters single-chip microcomputer and carry out analog to digital conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699931 CN202994895U (en) | 2012-12-18 | 2012-12-18 | Voltage acquisition device of multiple-voltage-level automatic change-over switch controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220699931 CN202994895U (en) | 2012-12-18 | 2012-12-18 | Voltage acquisition device of multiple-voltage-level automatic change-over switch controller |
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| CN202994895U true CN202994895U (en) | 2013-06-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018544A (en) * | 2012-12-18 | 2013-04-03 | 天津市百利电气有限公司 | Voltage acquisition device and control method of multiple voltage grade automatic transfer switch controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018544A (en) * | 2012-12-18 | 2013-04-03 | 天津市百利电气有限公司 | Voltage acquisition device and control method of multiple voltage grade automatic transfer switch controller |
| CN103018544B (en) * | 2012-12-18 | 2016-04-13 | 天津市百利电气有限公司 | automatic transfer switch controller voltage collecting device and control method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20171218 |