CN106301025A - A kind of voltage buffer power supply of anode electrolytic cell current measuring device surging suppression - Google Patents
A kind of voltage buffer power supply of anode electrolytic cell current measuring device surging suppression Download PDFInfo
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- CN106301025A CN106301025A CN201610740978.0A CN201610740978A CN106301025A CN 106301025 A CN106301025 A CN 106301025A CN 201610740978 A CN201610740978 A CN 201610740978A CN 106301025 A CN106301025 A CN 106301025A
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal 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
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal 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
-
- 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
- H02M1/12—Arrangements for reducing harmonics from ac input or output
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
-
- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0038—Circuits or arrangements for suppressing, e.g. by masking incorrect turn-on or turn-off signals, e.g. due to current spikes in current mode control
-
- 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
- H02M1/0048—Circuits or arrangements for reducing losses
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
- H02M1/344—Active dissipative snubbers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses the voltage buffer power supply of a kind of anode electrolytic cell current measuring device surging suppression, it is characterized in that, main by control chip U2, diode rectifier U1, transformator T1, transformator T2, audion VT1, resistance R4, it is serially connected in the ICLC between the cathode output end of diode rectifier U1 and the VCC pin of control chip U2, respectively with the COMP pin of control chip U2, VFB pin, the pulse width regulating circuit that VREF pin is connected with RC pin, it is serially connected in the current detection circuit between control chip U2 and transformator T2, and the composition such as the IGCT buffer circuit between non-same polarity and the current detection circuit of the secondary inductance coil L2 being serially connected in transformator T2.The present invention is reasonable in design, and overall structure is simple, and using effect is good, can well guarantee the stability of anode electrolytic cell current measuring device, it is thus possible to ensure the accuracy of measurement result.
Description
Technical field
The present invention relates to a kind of power supply, specifically, be that a kind of anode electrolytic cell current measuring device surging presses down
The voltage buffer power supply of system.
Background technology
Aluminium electroloysis industry at home typically requires in prebaked cell production process the distribution to anode current survey
Amount, traditional anode current measurement apparatus is the manual measurement method using the equidistant voltage drop of off-line, due to the equidistant voltage of off-line
The manual measurement method of fall can only measure an anode every time, carries out the measurement of next anode, this measurement side after having operated again
The process of measurement of method is complicated, workload big, and the time of measuring is long, causes measurement result to there is time difference, it is impossible to truly to reflect
The distribution situation of anode electrolytic cell electric current.Along with the development of aluminium electroloysis industry, anode current measurement apparatus is also entered by people
Gone improvement, i.e. the side at the clamping plate of the bus for fixing jointed anode bar arranges one or more for the work to bus
Carry out the probe of the automatically retractable detected as electric current, this probe is connected with signal picker by the way of electrical connection, letter
Number harvester is transferred to the control centre on backstage by signal processing system after then being processed by the information Man of collection, in control
The heart is by just can get the current value of anode electrolytic cell bar after converting the information received.And this anode electrolytic cell electric current
Measurement apparatus operationally needs a power supply that can export stable voltage and current to be its power supply, to guarantee anode electrolytic cell
The stability of current measuring device.
But, there is the stability of output voltage and electric current in the power supply of existing anode electrolytic cell current measuring device
, there is instability in poor problem when causing anode electrolytic cell current measuring device to work, so that measurement result accuracy
Not high enough.Therefore it provides the anode electrolytic cell current measuring device power supply that a kind of energy exports stable voltage and current is
The task of top priority.
Summary of the invention
It is an object of the invention to overcome the power supply of existing anode electrolytic cell current measuring device to there is output electricity
Pressure and the defect of poor stability of electric current, it is provided that the voltage buffer of a kind of anode electrolytic cell current measuring device surging suppression
Power supply.
To achieve these goals, the scheme that the present invention uses is as follows: a kind of anode electrolytic cell current measuring device is with prominent
The voltage buffer power supply of ripple suppression, mainly by control chip U2, diode rectifier U1, transformator T1, transformator T2, audion
VT1, positive pole cathode output end with diode rectifier U1 after resistance R1 is connected, N pole after resistance R19 with transformator T2
The Zener diode D3 that the Same Name of Ends of former limit inductance coil L3 is connected, positive pole is connected with the emitter stage of audion VT1, negative pole
Polar capacitor C1, the N pole of ground connection is connected with the Same Name of Ends of the former limit inductance coil L1 of transformator T2, P pole after resistance R2 with
The diode D2 that the base stage of audion VT1 is connected, one end is connected with the P pole of diode D2, the other end and audion VT1
The adjustable resistance R3 that colelctor electrode is connected, negative pole is connected with the P pole of diode D2, the former limit inductor wire of positive pole and transformator T2
Polar capacitor C2, the P pole that is connected of non-same polarity of circle L1 is connected with the Same Name of Ends of the secondary inductance coil L2 of transformator T2,
The non-same polarity of the secondary inductance coil L2 of N pole and transformator T2 is collectively forming the diode D1 of the outfan of transformator T2, just
The polarity that pole is connected with the N pole of diode D1, negative pole is connected with the non-same polarity of the L2 of inductance coil respectively of transformator T2
Electric capacity C3, one end is connected with the N pole of diode D1, the other end is connected with the Same Name of Ends of the secondary inductance coil L2 of transformator T2
The resistance R4 connect, the surge being serially connected between the cathode output end of diode rectifier U1 and the VCC pin of control chip U2 electricity
Stream limiting circuit, the pulsewidth being connected with COMP pin, VFB pin, VREF pin and the RC pin of control chip U2 respectively is adjusted
Whole circuit, is serially connected in the current detection circuit between control chip U2 and transformator T2, and is serially connected in the secondary of transformator T2
IGCT buffer circuit composition between non-same polarity and the current detection circuit of inductance coil L2.
The non-same polarity of the secondary inductance coil of described transformator T1 and one of them input of diode rectifier U1
Be connected, the Same Name of Ends of its secondary inductance coil is then connected with another input of diode rectifier U1；Described voltage stabilizing
The N pole of diode D3 is also connected with the VCC pin of control chip U2；The colelctor electrode of described audion VT1 also with transformator T2
The non-same polarity of former limit inductance coil L1 be connected, its emitter stage then cathode output end with diode rectifier U1 is connected
Connect；The GND pin ground connection of described control chip U2, its COMP pin are connected with VCC pin；Described pulse width regulating circuit also with
Current detection circuit is connected.
Described ICLC is by amplifier P2, amplifier P3, audion VT8, and audion VT9, positive pole is through electricity
Be connected with the positive pole of amplifier P3 after resistance R32, polarity that negative pole is connected with the cathode output end of diode rectifier U1 electric
Hold C21, one end is connected with the positive pole of polar capacitor C21, the resistance R34 of other end ground connection, negative pole after resistance R28 with three poles
The emitter stage of pipe VT8 is connected, the polar capacitor C18 of plus earth, and one end is connected with the negative pole of polar capacitor C18, another
Resistance R30, P pole positive pole with polar capacitor C18 after resistance R29 of end ground connection is connected, N pole is followed by through adjustable resistance R35
The diode D13 on ground, the polar capacitor that negative pole is connected with the negative pole of amplifier P2, positive pole is connected with the positive pole of amplifier P3
The diode D15 that C20, N pole is connected with the base stage of audion VT9, P pole is connected with the outfan of amplifier P3, positive pole with
The polar capacitor C19 that the outfan of amplifier P2 is connected, negative pole emitter stage with audion VT9 after resistance R33 is connected,
Positive pole colelctor electrode with audion VT8 after resistance R31 is connected, the polar capacitor C23 of minus earth, and positive pole is through resistance R36
The polar capacitor that negative pole with amplifier P3 is connected afterwards, negative pole negative pole with polar capacitor C23 after resistance R37 is connected
C22, and N pole is connected with the emitter stage of audion VT8, P pole negative pole with polar capacitor C23 after resistance R38 is connected
Zener diode D14 composition；The negative pole of described amplifier P3 is connected with the adjustable side of adjustable resistance R35；Described amplifier
The positive pole of P2 is connected with the adjustable side of adjustable resistance R30, its outfan also base stage with audion VT8 is connected；Described three
The grounded collector of pole pipe VT9；The emitter stage of described audion VT8 is also connected with the VCC pin of control chip U2.
Further, described IGCT buffer circuit is by amplifier P1, audion VT6, audion VT7, IGCT DL, N
Pole diode D9 that positive pole is connected, P pole is connected with current detection circuit with amplifier P1 after resistance R20, positive pole warp
After resistance R21, the P pole with diode D9 is connected, polar capacitor C13, the P pole of minus earth is sequentially through resistance R23 and resistance
The diode that after R22, the N pole with diode D9 is connected, N pole emitter stage with audion VT7 after resistance R25 is connected
D12, positive pole after resistance R26 with diode D12 the polarity that N pole is connected, negative pole is connected with the anode of IGCT DL electricity
Hold the diode D11 that C17, P pole is connected, N pole is connected with the control pole of IGCT DL with the colelctor electrode of audion VT7, just
The polar capacitor that pole is connected with the outfan of amplifier P1, negative pole base stage with audion VT7 after resistance R24 is connected
C14, polar capacitor C15, the N pole that negative pole is connected with the base stage of audion VT6, positive pole is connected with the negative electrode of IGCT DL with
The diode that the emitter stage of audion VT6 is connected, P pole negative pole with polar capacitor C17 after adjustable resistance R27 is connected
D10, and the polar capacitor that positive pole is connected with the anode of IGCT DL, negative pole is connected with the adjustable side of adjustable resistance R27
C16 forms；The P pole ground connection of described diode D12；After the negative pole of described amplifier P1 also base stage with audion VT7 is connected
Ground connection, its outfan the most also colelctor electrode with audion VT6 is connected；The emitter stage of described audion VT6 also with transformator T2
The non-same polarity of secondary inductance coil L2 be connected；The minus earth of described polar capacitor C17.
Described pulse width regulating circuit by audion VT2, audion VT3, positive pole after resistance R5 with the current collection of audion VT2
The colelctor electrode of the polar capacitor C4 that pole is connected, negative pole is connected with the COMP pin of control chip U2, one end and audion VT2
Be connected, inductance L4 that the other end is connected with the negative pole of polar capacitor C4, one end is connected with the base stage of audion VT2, separately
Resistance R7, the P pole that one end is connected with the COMP pin of control chip U2 is connected with the positive pole of polar capacitor C4, N pole sequentially
Through the diode D4 that resistance R6 emitter stage with audion VT2 after resistance R8 is connected, the emitter stage of positive pole and audion VT2
Be connected, polar capacitor C5, P pole that negative pole is connected with the VFB pin of control chip U2 is connected with the emitter stage of audion VT2
Connect, diode D5 that N pole is connected with the base stage of audion VT3, positive pole is connected with the junction point of resistance R6 with resistance R8, negative
The polar capacitor C6 that pole colelctor electrode with audion VT3 after resistance R9 is connected, and the VREF of one end and control chip U2
The resistance R10 composition that pin is connected, the other end is connected with the emitter stage of audion VT3；The negative pole of described polar capacitor C6
Ground connection；The emitter stage of described audion VT3 is connected with RC pin and the current detection circuit of control chip U2 the most respectively.
Described current detection circuit is by field effect transistor MOS, audion VT4, audion VT5, negative pole and field effect transistor MOS
Polar capacitor C10, the P pole that grid is connected, positive pole is connected with the GD pin of control chip U2 after resistance R14 and polarity electricity
Hold the IS of the diode D7 that positive pole is connected, N pole is connected of C10, one end and control chip U2 with the colelctor electrode of audion VT4
The resistance R12 that pin is connected, the other end is connected with the emitter stage of audion VT4, positive pole is connected with the base stage of audion VT4
Connect, polar capacitor C7, N pole that negative pole is connected with the emitter stage of audion VT3 after resistance R15 with the source of field effect transistor MOS
The diode D6 that pole is connected, P pole negative pole with polar capacitor C7 after resistance R11 is connected, positive pole after resistance R13 with three
Polar capacitor C8, the P pole that the colelctor electrode of pole pipe VT4 is connected, negative pole is connected with the base stage of audion VT5 is after resistance R18
Be connected with the drain electrode of field effect transistor MOS, diode D8 that N pole emitter stage with audion VT5 after resistance R16 is connected,
Negative pole is connected with the colelctor electrode of audion VT5 after resistance R17, positive pole is of the same name with the former limit inductance coil L3's of transformator T2
The polar capacitor C11 that is connected of end, negative pole be connected with the non-same polarity of the former limit inductance coil L3 of transformator T2 after ground connection, just
The polar capacitor C9 that pole is connected with the colelctor electrode of audion VT5, and the former limit inductance coil L3 of negative pole and transformator T2
The polar capacitor C12 composition that non-same polarity is connected, positive pole is connected with the P pole of diode D9；The P pole of described diode D6 is also
Ground connection after being connected with the colelctor electrode of audion VT5；The drain electrode of described field effect transistor MOS also with the former limit inductor wire of transformator T2
The Same Name of Ends of circle L1 is connected.
For the practical effect of the present invention, described control chip U2 the most preferentially have employed the integrated chip of UC384X and comes real
Existing.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention is reasonable in design, and overall structure is simple, and using effect is good, can well guarantee anode electrolytic cell electric current
The stability of measurement apparatus, it is thus possible to ensure the accuracy of measurement result.
(2) present invention can change the pulse width of voltage to control the fluctuation of output voltage, can effectively improve voltage
Dynamic property；And the low-order harmonic that the present invention can effectively suppress or eliminate in voltage, can account for Voltage Feedback simultaneously
Empty ratio is adjusted, and ensures that the present invention can export stable voltage and current, effectively raises anode electrolytic cell electricity
The stability of flow measuring apparatus.
(3) high surge current that input power produces when powering up can be suppressed by the present invention, can effectively will exceed
In the range of the transient overvoltage of normal working voltage is adjusted to allow, thus improve the steady of output voltage of the present invention and electric current
Qualitative.
(4) present invention can to circuit turn-on and when turning off the voltage and current waveform that born of electronic component be adjusted or
Buffering, reduces the voltage and current impact to electronic component, and the waveform of voltage and current can be made to keep steady statue, reduce electricity
Road loss to voltage and current when turn-on and turn-off, thus improve the voltage and current of present invention output stability and
Reliability, it is thus possible to ensure the accuracy of measurement result.
(5) the control chip U2 of the present invention the most preferentially have employed the integrated chip of UC384X and realizes, this chip and periphery electricity
Road combines, and can effectively improve stability and the reliability of the present invention.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the IGCT buffer circuit of the present invention.
Fig. 3 is the electrical block diagram of the ICLC of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
During enforcement, the present invention is mainly by control chip U2, diode rectifier U1 transformator T1, transformator T2, audion
VT1, resistance R1, resistance R2, adjustable resistance R3, resistance R4, resistance R19, polar capacitor C1, polar capacitor C2, polar capacitor C3,
Diode D1, diode D2, Zener diode D3, ICLC, IGCT buffer circuit, pulse width regulating circuit,
And current detection circuit composition.
During connection, the positive pole of Zener diode D3 cathode output end with diode rectifier U1 after resistance R1 is connected
Connecing, N pole Same Name of Ends of limit inductance coil L3 former with transformator T2 after resistance R19 is connected.The positive pole of polar capacitor C1 and three
The emitter stage of pole pipe VT1 is connected, minus earth.The N pole of diode D2 is of the same name with the former limit inductance coil L1's of transformator T2
End is connected, and P pole base stage with audion VT1 after resistance R2 is connected.One end of adjustable resistance R3 and the P pole of diode D2
Being connected, the other end is connected with the colelctor electrode of audion VT1.
Wherein, the negative pole of polar capacitor C2 is connected with the P pole of diode D2, positive pole and the former limit inductor wire of transformator T2
The non-same polarity of circle L1 is connected.The P pole of diode D1 is connected with the Same Name of Ends of the secondary inductance coil L2 of transformator T2, N
The non-same polarity of the secondary inductance coil L2 of pole and transformator T2 is collectively forming the outfan of transformator T2.Polar capacitor C3 is just
Pole is connected with the N pole of diode D1, and negative pole is connected with the non-same polarity of the L2 of inductance coil respectively of transformator T2.Resistance R4
One end be connected with the N pole of diode D1, the other end is connected with the Same Name of Ends of the secondary inductance coil L2 of transformator T2.Wave
Gush current limit circuit to be serially connected between the cathode output end of diode rectifier U1 and the VCC pin of control chip U2.Pulsewidth
Adjust circuit respectively with the COMP pin of control chip U2, VFB pin, VREF pin is connected with RC pin.Current detecting electricity
Road is serially connected between control chip U2 and transformator T2.IGCT buffer circuit is serially connected in the secondary inductance coil L2 of transformator T2
Non-same polarity and current detection circuit between.
The non-same polarity of the secondary inductance coil of described transformator T1 and one of them input of diode rectifier U1
Being connected, the Same Name of Ends of its secondary inductance coil is then connected with another input of diode rectifier U1；Described voltage stabilizing
The N pole of diode D3 is also connected with the VCC pin of control chip U2；The colelctor electrode of described audion VT1 also with transformator T2
The non-same polarity of former limit inductance coil L1 be connected, its emitter stage then cathode output end with diode rectifier U1 is connected
Connect；The GND pin ground connection of described control chip U2, its COMP pin is connected with VCC pin；Described pulse width regulating circuit also with
Current detection circuit is connected.
During enforcement, defeated as the present invention of the Same Name of Ends of the transformator T1 former limit inductance coil L1 of the present invention and non-same polarity
Entering end and be electrically connected with civil power, this transformator T1 then carries out blood pressure lowering process, the voltage after blood pressure lowering process to the civil power inputted
Being converted to 12V DC voltage after diode rectifier U1 carries out rectification, this voltage is the reference voltage of the present invention.And the present invention
In audion VT1, resistance R2, adjustable resistance R3, polar capacitor C1, polar capacitor C2 and diode D2 define micro-process
Device, this microprocessor can eliminate the harmonic wave in the 12V reference voltage after rectification, makes this reference voltage cleaner, thus effectively
Ensure that the present invention can export stable voltage and current.Wherein, the outfan of described transformator T2 then with anode electrolytic cell
The electrical interface that enters of current measuring device is connected, and powers for anode electrolytic cell current measuring device.The control chip of the present invention
U2 the most preferentially have employed the integrated chip of UC384X and realizes, and this chip combines with peripheral circuit, can effectively improve the present invention
Stability and reliability.
Further, described pulse width regulating circuit by audion VT2, audion VT3, resistance R5, resistance R6, resistance R7,
Resistance R8, resistance R9, resistance R10, polar capacitor C4, polar capacitor C5, polar capacitor C6, inductance L4, diode D4, and two
Pole pipe D5 forms.
During connection, the positive pole of polar capacitor C4 colelctor electrode with audion VT2 after resistance R5 is connected, negative pole and control
The COMP pin of chip U2 is connected.One end of inductance L4 is connected with the colelctor electrode of audion VT2, the other end and polar capacitor
The negative pole of C4 is connected.One end of resistance R7 is connected with the base stage of audion VT2, the COMP pipe of the other end and control chip U2
Foot is connected.The P pole of diode D4 is connected with the positive pole of polar capacitor C4, N pole sequentially after resistance R6 and resistance R8 with three
The emitter stage of pole pipe VT2 is connected.
Wherein, the positive pole of polar capacitor C5 is connected with the emitter stage of audion VT2, negative pole and the VFB of control chip U2
Pin is connected.The P pole of diode D5 is connected with the emitter stage of audion VT2, and N pole is connected with the base stage of audion VT3.
The positive pole of polar capacitor C6 is connected with the junction point of resistance R6 with resistance R8, negative pole after resistance R9 with the collection of audion VT3
Electrode is connected.One end of resistance R10 is connected with the VREF pin of control chip U2, the other end and the transmitting of audion VT3
Pole is connected.The minus earth of described polar capacitor C6；The emitter stage of described audion VT3 the most respectively with the RC of control chip U2
Pin is connected with current detection circuit.
Further, described current detection circuit by field effect transistor MOS, audion VT4, audion VT5, resistance R11,
Resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, polar capacitor C7, polar capacitor
C8, polar capacitor C9, polar capacitor C10, polar capacitor C11, polar capacitor C12, diode D6, diode D7, and two poles
Pipe D8 forms.
During connection, the negative pole of polar capacitor C10 is connected with the grid of field effect transistor MOS, positive pole after resistance R14 with control
The GD pin of coremaking sheet U2 is connected.The P pole of diode D7 is connected with the positive pole of polar capacitor C10, N pole and audion VT4
Colelctor electrode be connected.One end of resistance R12 is connected with the IS pin of control chip U2, and the other end is sent out with audion VT4's
Emitter-base bandgap grading is connected.The positive pole of polar capacitor C7 is connected with the base stage of audion VT4, the emitter stage phase of negative pole and audion VT3
Connect.
Wherein, the N pole of diode D6 source electrode with field effect transistor MOS after resistance R15 is connected, and P pole is after resistance R11
It is connected with the negative pole of polar capacitor C7.The positive pole of polar capacitor C8 colelctor electrode with audion VT4 after resistance R13 is connected
Connecing, negative pole is connected with the base stage of audion VT5.The P pole of diode D8 after resistance R18 with the drain electrode phase of field effect transistor MOS
Connecting, N pole emitter stage with audion VT5 after resistance R16 is connected.The negative pole of polar capacitor C11 after resistance R17 with three
The colelctor electrode of pole pipe VT5 is connected, and positive pole is connected with the Same Name of Ends of the former limit inductance coil L3 of transformator T2.
Meanwhile, the negative pole of polar capacitor C9 is connected with the non-same polarity of the former limit inductance coil L3 of transformator T2 and is followed by
Ground, positive pole is connected with the colelctor electrode of audion VT5.The negative pole of polar capacitor C12 and the former limit inductance coil L3 of transformator T2
Non-same polarity be connected, positive pole is connected with the P pole of diode D9.The P pole of described diode D6 also with the collection of audion VT5
Electrode be connected after ground connection；The drain electrode of described field effect transistor MOS also with the Same Name of Ends phase of the former limit inductance coil L1 of transformator T2
Connect.
As in figure 2 it is shown, described IGCT buffer circuit is by amplifier P1, audion VT6, audion VT7, IGCT DL,
Resistance R20, resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26, adjustable resistance R27, polar capacitor
C13, polar capacitor C14, polar capacitor C15, polar capacitor C16, polar capacitor C17, diode D9, diode D10, diode
D11, and diode D12 composition.
During connection, the N pole of diode D9 positive pole with amplifier P1 after resistance R20 is connected, P pole and current detecting electricity
Road is connected.The positive pole of polar capacitor C13 P pole with diode D9 after resistance R21 is connected, minus earth.Diode D12
P pole be sequentially connected through resistance R23 N pole with diode D9 after resistance R22, N pole after resistance R25 with audion VT7
Emitter stage be connected.The positive pole of polar capacitor C17 N pole with diode D12 after resistance R26 is connected, negative pole and brilliant lock
The anode of pipe DL is connected.The P pole of diode D11 is connected with the colelctor electrode of audion VT7, N pole and the control of IGCT DL
Pole is connected.
Wherein, the positive pole of polar capacitor C14 is connected with the outfan of amplifier P1, negative pole after resistance R24 with three poles
The base stage of pipe VT7 is connected.The negative pole of polar capacitor C15 is connected with the base stage of audion VT6, positive pole and the moon of IGCT DL
Pole is connected.The N pole of diode D10 is connected with the emitter stage of audion VT6, P pole after adjustable resistance R27 with polar capacitor
The negative pole of C17 is connected.The positive pole of polar capacitor C16 is connected with the anode of IGCT DL, negative pole and the tune of adjustable resistance R27
Joint end is connected.
The P pole ground connection of described diode D12；After the negative pole of described amplifier P1 also base stage with audion VT7 is connected
Ground connection, its outfan the most also colelctor electrode with audion VT6 is connected；The emitter stage of described audion VT6 also with transformator T2
The non-same polarity of secondary inductance coil L2 be connected；The minus earth of described polar capacitor C17.
As it is shown on figure 3, described ICLC is by amplifier P2, amplifier P3, audion VT8, audion
VT9, resistance R28, resistance R29, adjustable resistance R30, resistance R31, resistance R32, resistance R33, resistance R34, adjustable resistance R35,
Resistance R36, resistance R37, resistance R38, polar capacitor C18, polar capacitor C19, polar capacitor C20, polar capacitor C21, polarity
Electric capacity C22, polar capacitor C23, diode D13, diode D14, and diode D15 form.
During connection, the positive pole of polar capacitor C21 positive pole with amplifier P3 after resistance R32 is connected, negative pole and two poles
The cathode output end of pipe commutator U1 is connected.One end of resistance R34 is connected with the positive pole of polar capacitor C21, another termination
Ground.The negative pole of polar capacitor C18 emitter stage with audion VT8 after resistance R28 is connected, plus earth.The one of resistance R30
End is connected with the negative pole of polar capacitor C18, other end ground connection.
Wherein, the P pole of diode D13 positive pole with polar capacitor C18 after resistance R29 is connected, and N pole is through adjustable resistance
Ground connection after R35.The negative pole of polar capacitor C20 is connected with the negative pole of amplifier P2, and positive pole is connected with the positive pole of amplifier P3.
The N pole of diode D15 is connected with the base stage of audion VT9, and P pole is connected with the outfan of amplifier P3.Polar capacitor C19
Positive pole be connected with the outfan of amplifier P2, negative pole emitter stage with audion VT9 after resistance R33 is connected.
Meanwhile, the positive pole of polar capacitor C23 colelctor electrode with audion VT8 after resistance R31 is connected, minus earth.
The positive pole of polar capacitor C22 negative pole with amplifier P3 after resistance R36 is connected, negative pole after resistance R37 with polar capacitor
The negative pole of C23 is connected.The N pole of Zener diode D14 is connected with the emitter stage of audion VT8, P pole after resistance R38 with
The negative pole of polar capacitor C23 is connected.
The negative pole of described amplifier P3 is connected with the adjustable side of adjustable resistance R35；The positive pole of described amplifier P2 with can
The adjustable side adjusting resistance R30 is connected, and its outfan also base stage with audion VT8 is connected；The current collection of described audion VT9
Pole ground connection；The emitter stage of described audion VT8 is also connected with the VCC pin of control chip U2.
During operation, the control chip U2 that the present invention uses is the integrated chip of UC384X, and the integrated chip of this UC384X is fixing
The integrated chip of the controlled modulation system of operating frequency.The resistance R5 of the pulse width regulating circuit of the present invention, resistance R6, resistance R7, electricity
The external resistor and capacitor component of resistance R8, diode D4, inductance L4 and COMP pin that polar capacitor C4 is control chip U2 is for adjusting
The gain of voltage and frequency characteristic；The polar capacitor C5 of this pulse width regulating circuit, polar capacitor C6, diode D5 and resistance R9 shape
Becoming Voltage Feedback device, and be connected as the VFB pin of feedback voltage input with control chip U2, this Voltage Feedback device exports
The reference voltage of voltage and the error amplifier in-phase end within control chip U2 compare, produce error voltage, control
Pulse width processed, therefore pulse width regulating circuit just can be effectively to voltage after being adjusted the gain of voltage and frequency characteristic
Pulsewidth is adjusted, and makes voltage more steady.Meanwhile, the GD pin of the current detecting regulation electric circuit inspection control chip U2 of the present invention
Voltage make power supply be in discontinuous operation state more than just reducing pulse width during 1V；Effectively reduce the IS pipe of control chip U2
The Leakage Current of foot output electric current and loss current, and the unusual fluctuations of the IS pin output electric current of control chip U2 can be suppressed,
Output electric current is made to keep stable；Voltage after this current detecting regulation circuit will process the most simultaneously is transferred to transformator T2, this
The bipolar transformator that the transformator T2 of invention uses, this transformator T can export 5V～12V galvanic current pressure, it is thus possible to protect
The accuracy of card measurement result.
Wherein, the present invention is arranged between the cathode output end and the VCC pin of control chip U2 of diode rectifier U1
High surge current for producing input power when powering up suppresses, and effectively can will exceed normal working voltage
Transient overvoltage be adjusted to allow in the range of ICLC, the amplifier in this ICLC
P2, adjustable resistance R30 and audion VT8 form the first modulator, and amplifier P3, adjustable resistance R35 and audion VT9 are formed
The second modulator.This first modulator and the second modulator combine peripheral electron element and effectively can power up input power
Time produce high surge current suppress, and overvoltage is adjusted to allow in the range of, thus this surge current limit electricity
The stability of output voltage of the present invention and electric current can be preferably improved on road.
Meanwhile, when the present invention is in order to reduce circuit turn-on and turn off electronic component by instant high-voltage and high electric current to change
The impact of depressor T2, and the waveform of voltage and current can be made to keep steady statue, reduce transformator T2 when turn-on and turn-off pair
The loss of voltage and current, therefore transformator T2 secondary inductance coil L2 non-same polarity and current detecting regulation circuit it
Between be provided with IGCT buffer circuit.This IGCT buffer circuit can when transformator T2 turn-on and turn-off putting by this circuit
Voltage and current waveform is reduced pressure by the buffer that big device P1, audion VT7, polar capacitor C15 and IGCT DL are formed,
I.e. reduce the voltage and current impact to transformator T2, and voltage and current can be made after adjustable resistance R and polar capacitor C16
Waveform keeps steady statue, reduces the present invention loss when turn-on and turn-off to voltage and current simultaneously, thus improves this
The stability of the voltage and current of invention output and reliability.The polar capacitor C16 of the present invention is filter capacitor.
Therefore, the present invention is by being adjusted the pulse width of voltage；And the low-order harmonic in voltage is had
The elimination of effect or suppression, can effectively guarantee after the dutycycle to Voltage Feedback is adjusted simultaneously to export stable voltage and electricity
Stream, thus the present invention can effectively improve the stability of anode electrolytic cell current measuring device.Meanwhile, the control chip of the present invention
U2 preferentially have employed the integrated chip of UC384X and realizes, and this chip combines with peripheral circuit, can effectively improve the present invention's
Stability and reliability, it is thus possible to ensure the accuracy of measurement result.
According to above-described embodiment, can well realize the present invention.
Claims (6)
1. the voltage buffer power supply that an anode electrolytic cell current measuring device suppresses with surging, it is characterised in that main by controlling
Coremaking sheet U2, diode rectifier U1, transformator T1, transformator T2, audion VT1, positive pole is whole with diode after resistance R1
The cathode output end of stream device U1 is connected, N pole Same Name of Ends of limit inductance coil L3 former with transformator T2 after resistance R19 is connected
Zener diode D3, positive pole is connected with the emitter stage of audion VT1, polar capacitor C1, the N pole of minus earth and transformator
The diode that the Same Name of Ends of the former limit inductance coil L1 of T2 is connected, P pole base stage with audion VT1 after resistance R2 is connected
D2, the adjustable resistance R3 that one end is connected with the P pole of diode D2, the other end is connected with the colelctor electrode of audion VT1, negative pole
Be connected with the P pole of diode D2, polarity that positive pole is connected with the non-same polarity of the former limit inductance coil L1 of transformator T2 electricity
Hold C2, P pole be connected with the Same Name of Ends of the secondary inductance coil L2 of transformator T2, the secondary inductance coil of N pole and transformator T2
The non-same polarity of L2 is collectively forming the diode D1 of the outfan of transformator T2, and positive pole is connected with the N pole of diode D1, negative pole
The polar capacitor C3 being connected with the non-same polarity of the L2 of inductance coil respectively of transformator T2, the N pole phase of one end and diode D1
The resistance R4 that connection, the other end are connected with the Same Name of Ends of the secondary inductance coil L2 of transformator T2, is serially connected in diode rectification
ICLC between cathode output end and the VCC pin of control chip U2 of device U1, respectively with control chip U2
COMP pin, the pulse width regulating circuit that is connected with RC pin of VFB pin, VREF pin, be serially connected in control chip U2 and change
Current detection circuit between depressor T2, and it is serially connected in non-same polarity and the electric current inspection of the secondary inductance coil L2 of transformator T2
IGCT buffer circuit composition between slowdown monitoring circuit；The non-same polarity of the secondary inductance coil of described transformator T1 is whole with diode
One of them input of stream device U1 is connected, the Same Name of Ends of its secondary inductance coil then with another of diode rectifier U1
Input is connected；The N pole of described Zener diode D3 is also connected with the VCC pin of control chip U2；Described audion VT1
Colelctor electrode also non-same polarity with the former limit inductance coil L1 of transformator T2 be connected, its emitter stage then with diode rectifier
The cathode output end of U1 is connected；The GND pin ground connection of described control chip U2, its COMP pin are connected with VCC pin；Institute
State pulse width regulating circuit to be also connected with current detection circuit.
The voltage buffer power supply of a kind of anode electrolytic cell current measuring device surging the most according to claim 1 suppression,
It is characterized in that, described ICLC is by amplifier P2, amplifier P3, audion VT8, audion VT9, positive pole warp
The polarity that after resistance R32, the positive pole with amplifier P3 is connected, negative pole is connected with the cathode output end of diode rectifier U1
Electric capacity C21, one end is connected with the positive pole of polar capacitor C21, the resistance R34 of other end ground connection, negative pole after resistance R28 with three
The emitter stage of pole pipe VT8 is connected, the polar capacitor C18 of plus earth, and one end is connected with the negative pole of polar capacitor C18, separately
Resistance R30, the P pole of one end ground connection positive pole with polar capacitor C18 after resistance R29 is connected, N pole is after adjustable resistance R35
The diode D13 of ground connection, the polarity electricity that negative pole is connected with the negative pole of amplifier P2, positive pole is connected with the positive pole of amplifier P3
Hold the diode D15 that C20, N pole is connected, P pole is connected with the outfan of amplifier P3, positive pole with the base stage of audion VT9
Be connected with the outfan of amplifier P2, polar capacitor that negative pole emitter stage with audion VT9 after resistance R33 is connected
C19, positive pole colelctor electrode with audion VT8 after resistance R31 is connected, the polar capacitor C23 of minus earth, and positive pole is through resistance
The polarity electricity that after R36, the negative pole with amplifier P3 is connected, negative pole negative pole with polar capacitor C23 after resistance R37 is connected
Hold C22, and N pole is connected with the emitter stage of audion VT8, P pole negative pole with polar capacitor C23 after resistance R38 is connected
The Zener diode D14 composition connect；The negative pole of described amplifier P3 is connected with the adjustable side of adjustable resistance R35；Described amplification
The positive pole of device P2 is connected with the adjustable side of adjustable resistance R30, its outfan also base stage with audion VT8 is connected；Described
The grounded collector of audion VT9；The emitter stage of described audion VT8 is also connected with the VCC pin of control chip U2.
The voltage buffer power supply of a kind of anode electrolytic cell current measuring device surging the most according to claim 2 suppression,
It is characterized in that, described IGCT buffer circuit is by amplifier P1, audion VT6, audion VT7, and IGCT DL, N pole is through electricity
With the diode D9 that positive pole is connected, P pole is connected with current detection circuit of amplifier P1 after resistance R20, positive pole is through resistance R21
Be connected with the P pole of diode D9 afterwards, polar capacitor C13, the P pole of minus earth sequentially after resistance R23 and resistance R22 with two
The diode D12 that the N pole of pole pipe D9 is connected, N pole emitter stage with audion VT7 after resistance R25 is connected, positive pole is through electricity
Be connected with the N pole of diode D12 after resistance R26, polar capacitor C17, P pole and three that negative pole is connected with the anode of IGCT DL
The diode D11 that the colelctor electrode of pole pipe VT7 is connected, N pole is connected with the control pole of IGCT DL, positive pole is with amplifier P1's
The polar capacitor C14 that outfan is connected, negative pole base stage with audion VT7 after resistance R24 is connected, negative pole and audion
Polar capacitor C15, the N pole that the base stage of VT6 is connected, positive pole is connected with the negative electrode of IGCT DL and the transmitting of audion VT6
The diode D10 that pole is connected, P pole negative pole with polar capacitor C17 after adjustable resistance R27 is connected, and positive pole is with brilliant
The polar capacitor C16 composition that the anode of brake tube DL is connected, negative pole is connected with the adjustable side of adjustable resistance R27；Described two poles
The P pole ground connection of pipe D12；The negative pole of described amplifier P1 also base stage with audion VT7 be connected after ground connection, its outfan then also
It is connected with the colelctor electrode of audion VT6；The emitter stage of described audion VT6 is also with the secondary inductance coil L2's of transformator T2
Non-same polarity is connected；The minus earth of described polar capacitor C17.
The voltage buffer power supply of a kind of anode electrolytic cell current measuring device surging the most according to claim 3 suppression,
It is characterized in that, described pulse width regulating circuit by audion VT2, audion VT3, positive pole after resistance R5 with audion VT2's
The collection of the polar capacitor C4 that colelctor electrode is connected, negative pole is connected with the COMP pin of control chip U2, one end and audion VT2
The inductance L4 that electrode is connected, the other end is connected with the negative pole of polar capacitor C4, one end is connected with the base stage of audion VT2
Connect, resistance R7, P pole that the other end is connected with the COMP pin of control chip U2 is connected with the positive pole of polar capacitor C4, N pole
The diode D4 being sequentially connected through resistance R6 emitter stage with audion VT2 after resistance R8, positive pole is sent out with audion VT2's
Polar capacitor C5, the P pole that emitter-base bandgap grading is connected, negative pole is connected with the VFB pin of control chip U2 and the emitter stage of audion VT2
Be connected, diode D5 that N pole is connected with the base stage of audion VT3, positive pole is connected with the junction point of resistance R6 with resistance R8
Connect, polar capacitor C6 that negative pole colelctor electrode with audion VT3 after resistance R9 is connected, and one end is with control chip U2's
The resistance R10 composition that VREF pin is connected, the other end is connected with the emitter stage of audion VT3；Described polar capacitor C6's
Minus earth；The emitter stage of described audion VT3 is connected with RC pin and the current detection circuit of control chip U2 the most respectively.
The voltage buffer power supply of a kind of anode electrolytic cell current measuring device surging the most according to claim 4 suppression,
It is characterized in that, described current detection circuit is by field effect transistor MOS, audion VT4, audion VT5, negative pole and field effect transistor
Polar capacitor C10, the P pole that the grid of MOS is connected, positive pole is connected with the GD pin of control chip U2 after resistance R14 with
The diode D7 that the positive pole of polar capacitor C10 is connected, N pole is connected with the colelctor electrode of audion VT4, one end and control chip
The base of the resistance R12 that the IS pin of U2 is connected, the other end is connected with the emitter stage of audion VT4, positive pole and audion VT4
Polar capacitor C7, the N pole that pole is connected, negative pole is connected with the emitter stage of audion VT3 after resistance R15 with field effect transistor
The diode D6 that the source electrode of MOS is connected, P pole negative pole with polar capacitor C7 after resistance R11 is connected, positive pole is through resistance
Polar capacitor C8, the P pole warp that after R13, the colelctor electrode with audion VT4 is connected, negative pole is connected with the base stage of audion VT5
After resistance R18, the drain electrode with field effect transistor MOS is connected, N pole emitter stage with audion VT5 after resistance R16 is connected
Diode D8, negative pole is connected with the colelctor electrode of audion VT5 after resistance R17, the former limit inductor wire of positive pole and transformator T2
The polar capacitor C11 that the Same Name of Ends of circle L3 is connected, negative pole is connected with the non-same polarity of the former limit inductance coil L3 of transformator T2
Connect rear ground connection, polar capacitor C9 that positive pole is connected with the colelctor electrode of audion VT5, and the former limit electricity of negative pole and transformator T2
The polar capacitor C12 that non-same polarity is connected, positive pole is connected with the P pole of the diode D9 composition of sense coil L3；Described two poles
The P pole of pipe D6 also colelctor electrode with audion VT5 be connected after ground connection；The drain electrode of described field effect transistor MOS also with transformator T2
The Same Name of Ends of former limit inductance coil L1 be connected.
The voltage buffer power supply of a kind of anode electrolytic cell current measuring device surging the most according to claim 5 suppression,
It is characterized in that, described control chip U2 is the integrated chip of UC384X.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610740978.0A CN106301025A (en) | 2016-08-27 | 2016-08-27 | A kind of voltage buffer power supply of anode electrolytic cell current measuring device surging suppression |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610740978.0A CN106301025A (en) | 2016-08-27 | 2016-08-27 | A kind of voltage buffer power supply of anode electrolytic cell current measuring device surging suppression |
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| CN106301025A true CN106301025A (en) | 2017-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110946572A (en) * | 2019-12-18 | 2020-04-03 | 郑州轻工业大学 | Wireless Electrocardiogram (ECG) acquisition monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110946572A (en) * | 2019-12-18 | 2020-04-03 | 郑州轻工业大学 | Wireless Electrocardiogram (ECG) acquisition monitoring device |
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