CN106141378A - A kind of by the electric welding machine circuit of lithium battery power supply - Google Patents

A kind of by the electric welding machine circuit of lithium battery power supply Download PDF

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Publication number
CN106141378A
CN106141378A CN201610806925.4A CN201610806925A CN106141378A CN 106141378 A CN106141378 A CN 106141378A CN 201610806925 A CN201610806925 A CN 201610806925A CN 106141378 A CN106141378 A CN 106141378A
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China
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diode
relay
circuit
pin
anode
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CN201610806925.4A
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CN106141378B (en
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滕玮
杨海洪
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Shanghai Hezong Welding Equipment Manufacturing Co Ltd
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Shanghai Hezong Welding Equipment Manufacturing Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/10Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006Power supply
    • B23K9/1043Power supply characterised by the electric circuit
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10Parallel operation of dc sources
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Inverter Devices (AREA)

Abstract

The present invention relates to electric welding machine technical field, specifically a kind of by the electric welding machine circuit of lithium battery power supply, including intelligent voltage decision circuit, mos field effect transistor, insulated gate bipolar transistor, relay, electrochemical capacitor, transformer and output rectification circuit, the input of intelligent voltage decision circuit is connected with input power, the control signal output of intelligent voltage decision circuit divides two-way to be connected with the coil two ends of relay one and the coil two ends of relay two respectively, and relay one normally opened contact is connected with input power.The present invention compared with the existing technology, can accomplish that direct current 48V, alternating current 220V twin voltage are powered, and can intelligent decision input voltage, solve and power occasion without electrical network, the use problem of electric welding machine, raising machine operation efficiency, can accomplish to charge in limit use limit simultaneously.Additionally, direct current component of the present invention uses full bridge MOSFET circuit, controlled current flow is more preferable, in hgher efficiency.

Description

A kind of by the electric welding machine circuit of lithium battery power supply
Technical field
The present invention relates to electric welding machine technical field, specifically a kind of by the electric welding machine circuit of lithium battery power supply.
Background technology
In inverter type welder field, it is common that powered by the electrical network of single-phase 220V or three-phase 380V, electrical network is powered can make weldering Machine steady operation.But the occasion of civil power cannot be accessed at some, such as field emergency maintenance, then cannot complete weld job, now Just need a kind of portable can be battery-powered electric welding machine.
At present, the many selections of the supplying cell on market battery, battery volume is big, and weight is high, and lithium battery has energy Density is high, the relatively lighter advantage of same volume.Same, the battery welding machine on market can only use battery to power, when battery energy Amount exhausts, and uses, the production efficiency of reduction, waste the plenty of time after needing to recharge.
Accordingly, it would be desirable to design a kind of by the electric welding machine circuit of lithium battery power supply, can by 220V electrical network and lithium battery simultaneously Electric welding machine is powered, to realize charging in limit use limit.
Content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, provide a kind of by the electric welding machine circuit of lithium battery power supply, Electric welding machine can be powered by 220V electrical network and lithium battery, to realize charging in limit use limit simultaneously.
In order to achieve the above object, the present invention is a kind of by the electric welding machine circuit of lithium battery power supply, including intelligent voltage is sentenced Determine circuit, Metal-Oxide Semiconductor field-effect transistor, insulated gate bipolar transistor, relay, electrochemical capacitor, transformation Device and output rectification circuit, it is characterised in that: the input of intelligent voltage decision circuit is connected with input power, and intelligent voltage is sentenced The control signal output determining circuit divides two-way to connect with the coil two ends of relay one and the coil two ends of relay two respectively Connecing, one end of relay one normally opened contact is connected with input power one end, and the other end of relay one normally opened contact divides three tunnels to divide Not partly do not lead with the positive pole of electrochemical capacitor one, the drain electrode of Metal-Oxide Semiconductor field-effect transistor one and metal-oxide The drain electrode of body field-effect transistor three connects, the source electrode of Metal-Oxide Semiconductor field-effect transistor one divide two-way respectively with No. 1 pin of the drain electrode of Metal-Oxide Semiconductor field-effect transistor two and transformer connects, metal-oxide The source electrode of thing semiconductor field effect transistor three divides the drain electrode respectively with Metal-Oxide Semiconductor field-effect transistor four for the two-way And No. 2 pin of transformer connect, the negative pole of electrochemical capacitor one divide three tunnels respectively with the input power other end, gold The source electrode of genus-oxide semiconductor field effect transistor two and the source electrode of Metal-Oxide Semiconductor field-effect transistor four Connecting, one end of relay two normally opened contact is connected with the direct-flow positive pole output of rectifier bridge, relay two normally opened contact another One end divide three tunnels respectively with the positive pole of electrochemical capacitor two, the colelctor electrode of insulated gate bipolar transistor one and insulated gate bipolar The colelctor electrode of transistor three connects, the emitter stage of insulated gate bipolar transistor one divide two-way respectively with insulated gate bipolar crystal No. 3 pin of the colelctor electrode of pipe two and transformer connect, and the emitter stage two-way of insulated gate bipolar transistor three divides Not being connected with the colelctor electrode of insulated gate bipolar transistor four and No. 4 pin of transformer, two of rectifier bridge defeated Entering end to be connected with input power, the direct current cathode output end of rectifier bridge divides three tunnels double with electrochemical capacitor two negative pole, insulated gate respectively The emitter stage of the emitter stage of bipolar transistor two and insulated gate bipolar transistor four connects, transformer secondary coil with defeated Go out rectification circuit to connect.
Described intelligent voltage decision circuit includes resistance the first, resistance the 2nd, Zener diode, electric capacity, photoelectrical coupler, electricity One end of resistance one is connected with one end of input power, and the other end of resistance one is connected with the negative electrode of Zener diode, voltage stabilizing two pole The anode of pipe divides three tunnels to be connected with No. 1 pin of one end of resistance two, one end of electric capacity and photoelectrical coupler respectively, resistance two The other end divides three tunnels to be connected with No. 2 pin of the other end of input power, the other end of electric capacity and photoelectrical coupler respectively, photoelectricity No. 3 pin of coupler and No. 4 pin are control signal output.
The model of described photoelectrical coupler is EL817.
Described output rectification circuit includes power fast recovery diode the first, power fast recovery diode two, and power is extensive soon The anode of multiple diode one is connected with No. 5 pin of transformer secondary coil, the anode of power fast recovery diode two and transformer No. 7 pin of secondary coil are connected, after the negative electrode of power fast recovery diode one is connected with the negative electrode of power fast recovery diode two, Accessing the output cathode of electric welding machine, No. 6 pin of the centre cap of transformer secondary coil access the output negative pole of electric welding machine.
Described rectifier bridge includes diode the 3rd, diode the 4th, diode the 5th, diode six, the anode of diode three with The negative electrode of diode five connects, and the anode of diode four is connected with the negative electrode of diode six, and an input of rectifier bridge is positioned at The anode of diode three is with on the negative electrode connecting line of diode five, and another input of rectifier bridge is positioned at the anode of diode four With on the negative electrode connecting line of diode six, the negative electrode of diode three is connected with the negative electrode of diode four, the negative electrode of diode three with The negative electrode connecting line of diode four is provided with the direct-flow positive pole output of rectifier bridge, the sun of the anode of diode five and diode six Pole connects, and the anode of diode five is connected the direct current cathode output end being provided with rectifier bridge with the anode of diode six.
The present invention compared with the existing technology, can accomplish that direct current 48V, alternating current 220V twin voltage are powered, and can intelligent decision Input voltage, solves and powers occasion without electrical network, the use problem of electric welding machine, improves machine operation efficiency simultaneously, can accomplish Charge in limit use limit.Additionally, direct current component of the present invention uses full bridge MOSFET circuit, controlled current flow is more preferable, in hgher efficiency.
Brief description
Fig. 1 is the circuit diagram of the present invention.
Fig. 2 is the intelligent voltage decision circuit figure of the present invention.
Fig. 3 is that the 220V electrical network of the present invention is for electrical schematic.
Fig. 4 is that the 48V battery of the present invention is for electrical schematic.
Fig. 5 is the hybrid power supply schematic diagram of the present invention.
Detailed description of the invention
In conjunction with accompanying drawing, the present invention is described further.
Seeing Fig. 1, the present invention is a kind of by the electric welding machine circuit of lithium battery power supply, including intelligent voltage decision circuit, metal- Oxide semiconductor field effect transistor, insulated gate bipolar transistor, relay, electrochemical capacitor, transformer and output rectification Circuit.
The input of intelligent voltage decision circuit is connected with input power, the control signal output of intelligent voltage decision circuit End point two-way is connected with the coil two ends of relay one K1 and the coil two ends of relay two K2 respectively.
Seeing Fig. 2, intelligent voltage decision circuit includes resistance one R1, resistance two R2, Zener diode Z1, electric capacity C3, light Electric coupler U1, one end of resistance one R1 are connected with one end of input power, the other end of resistance one R1 and Zener diode Z1 Negative electrode connect, the anode of Zener diode Z1 divide three tunnels respectively with one end of resistance two R2, one end of electric capacity C3 and photoelectricity No. 1 pin of coupler U1 connects, the other end of resistance two R2 divide three tunnels respectively with the other end of input power, electric capacity C3 another No. 2 pin of end and photoelectrical coupler U1 connect, and No. 3 pin and No. 4 pin of photoelectrical coupler U1 are control signal output.Its In, the model of photoelectrical coupler U1 is EL817.Intelligent voltage decision circuit is 48V direct current for automatic decision input voltage Or 220V alternating current.
One end of relay one K1 normally opened contact is connected with input power one end, the other end of relay one K1 normally opened contact Point three tunnels respectively with the positive pole of electrochemical capacitor one C1, the drain electrode of Metal-Oxide Semiconductor field-effect transistor one M1 and gold The drain electrode of genus-oxide semiconductor field effect transistor three M3 connects, Metal-Oxide Semiconductor field-effect transistor one M1's Source electrode divides two-way 1 respectively with the drain electrode of Metal-Oxide Semiconductor field-effect transistor two M2 and transformer Number pin connects, the source electrode of Metal-Oxide Semiconductor field-effect transistor three M3 divide two-way respectively with Metal-Oxide Semiconductor No. 2 pin of the drain electrode of field-effect transistor four M4 and transformer connect, and the negative pole of electrochemical capacitor one C1 divides three tunnels Respectively with the input power other end, the source electrode of Metal-Oxide Semiconductor field-effect transistor two M2 and metal-oxide half The source electrode of conductor field-effect transistor four M4 connects.
When intelligent voltage decision circuit is judged to 48V direct current supply, relay one K1 normally opened contact closes, full-bridge MOSFET circuit works, and the 48V direct current that battery pack is inputted by electrochemical capacitor one C1 is filtered, Metal-Oxide Semiconductor Field-effect transistor one M1, Metal-Oxide Semiconductor field-effect transistor two M2, Metal-Oxide Semiconductor field-effect are brilliant Body pipe three M3, genus-oxide semiconductor field effect transistor four M4 form full-bridge circuit, are that intermediate frequency is handed over by 48V DC inverter Stream electricity, and it is input to the 1st, No. 2 pin of transformer.
One end of relay two K2 normally opened contact is connected with the direct-flow positive pole output of rectifier bridge, and relay two K2 is normally opened to be touched The other end minute three tunnel of point respectively with the positive pole of electrochemical capacitor two C2, the colelctor electrode of insulated gate bipolar transistor one T1 and absolutely The colelctor electrode of edge grid bipolar transistor three T3 connects, the emitter stage of insulated gate bipolar transistor one T1 divide two-way respectively with absolutely No. 3 pin of the colelctor electrode of edge grid bipolar transistor two T2 and transformer connect, insulated gate bipolar transistor The emitter stage two-way of three T3 No. 4 pin with the colelctor electrode of insulated gate bipolar transistor four T4 and transformer respectively Connect, two inputs of rectifier bridge are connected with input power, the direct current cathode output end of rectifier bridge divide three tunnels respectively with electrolysis The emitter stage of electric capacity two C2 negative pole, the emitter stage of insulated gate bipolar transistor two T2 and insulated gate bipolar transistor four T4 Connect.
Rectifier bridge includes diode three D3, diode four D4, diode five D5, diode six D6, the sun of diode three D3 Pole is connected with the negative electrode of diode five D5, and the anode of diode four D4 is connected with the negative electrode of diode six D6, of rectifier bridge Input is positioned on the anode of diode three D3 and the negative electrode connecting line of diode five D5, and another input of rectifier bridge is positioned at On the negative electrode connecting line of the anode of diode four D4 and diode six D6, the negative electrode of the negative electrode of diode three D3 and diode four D4 Connecting, the negative electrode connecting line of the negative electrode of diode three D3 and diode four D4 is provided with the direct-flow positive pole output of rectifier bridge, and two The anode of pole pipe five D5 is connected with the anode of diode six D6, and the anode of diode five D5 is connected with the anode of diode six D6 It is provided with the direct current cathode output end of rectifier bridge.
When intelligent voltage decision circuit is judged to 220V Alternating Current Power Supply, relay two K2 normally opened contact closes, full-bridge IGBT circuit works, and the 220V AC rectification of input is direct current by rectifier bridge, and relay two K2 does soft start function, prevents Electrochemical capacitor two C2 overcurrent damage, direct current is filtered by electrochemical capacitor two C2, and insulated gate bipolar transistor one T1, insulated gate are double Bipolar transistor two T2, insulated gate bipolar transistor three T3, insulated gate bipolar transistor four T4 form full-bridge circuit, will 310V DC inverter is medium frequency alternating current, and is input to the 3rd, No. 4 pin of transformer.
Transformer secondary coil is connected with output rectification circuit.Output rectification circuit includes power fast recovery diode one D1, power fast recovery diode two D2, the anode of power fast recovery diode one D1 connects with No. 5 pin of transformer secondary coil Connecing, the anode of power fast recovery diode two D2 is connected with No. 7 pin of transformer secondary coil, power fast recovery diode one D1 Negative electrode be connected with the negative electrode of power fast recovery diode two D2 after, access electric welding machine output cathode, transformer secondary coil No. 6 pin of centre cap access the output negative pole of electric welding machines.The midfrequent AC electric rectification of output is electric welding by output rectification circuit Direct current output needed for machine.
In the present invention, battery machine uses split-type structural with electric welding machine, and battery machine is by charging circuit and 12 joint lithium battery groups Constitute.Lithium battery is compared to battery, and energy density is higher, with lighter during capacity.Electric welding machine part can by direct current 48V, I.e. lithium battery group is powered, it is also possible to powered by alternating current 220V electrical network, can also be battery-powered by charging, it is achieved Bian Chong The hybrid mode of electricity limit welding.When user uses 220V electrical network to power, it is not necessary to carry heavier battery pack, improve machine Portability, applicable popularity.
In the present invention, intelligent voltage decision circuit can prevent maloperation from damaging lithium battery group with automatic discrimination input voltage.
In the present invention, direct current component main circuit uses full-bridge topology, and Metal-Oxide Semiconductor field-effect transistor is simultaneously Connection, effectively reduces machine loss.Full bridge MOSFET circuit and full-bridge IGBT circuit are only with a transformer, public main transformer The rectifying output circuit of secondary coil, cost-effective.
The present invention totally three kinds of mode of operations.
Seeing Fig. 3, pattern one accesses 220V network operation for electric welding machine, and intelligent voltage decision circuit identifies input voltage For alternating current 220V, obtaining electrical contacts closed by relay two K2 coil, relay one K1 contact remains open, full-bridge IGBT circuit work Make.
The alternating current 220V rectification of input is first direct current by rectifier bridge, input full-bridge after electrochemical capacitor two C2 filtering IGBT circuit, this inverter circuit passes through PWM technology, obtains the ac square wave of 40kHz, through transformer pressure-reducing, whole through output Obtain corresponding welding current after stream.
Seeing Fig. 4, pattern two accesses the work of 48V lithium battery group for electric welding machine, and intelligent voltage decision circuit identifies input Voltage is direct current 48V, obtains electrical contacts closed by relay one K1 coil, and relay two K2 contact remains open, full-bridge MOSFET Circuit works.
Direct current 48V voltage, after electrochemical capacitor one C1 filtering, inputs full bridge MOSFET circuit, and this inverter circuit passes through PWM technology, obtains the ac square wave of 40kHz, obtains corresponding welding current after main transformer boosting, output rectification.No Being same as conventional scheme, after first boosting direct current 48V, another mistake becomes 220V alternating current, is then used by conventional AC welding set, The present invention directly utilizes full-bridge topology and main transformer boosting, to reach the electric current of welding process requirement, reduces battery loss, In hgher efficiency.Same, it is different from another kind of conventional scheme, direct current 48V is directly obtained welding current by chopper circuit, this Invention uses full-bridge topology, can accurately control welding current, and welding effect is more preferably.
Seeing Fig. 5, pattern three is electric welding machine hybrid power supply mode of operation, battery machine incoming transport 220V electrical network, electric welding machine Accessing battery machine, this mode of operation can accomplish that limit charging limit is welded.Battery machine charging circuit can detect at lithium battery group In discharge condition, charging circuit uses intelligentized control method to prevent battery pack from overshooting or overdischarge damages.

Claims (5)

1. by an electric welding machine circuit for lithium battery power supply, including intelligent voltage decision circuit, Metal-Oxide Semiconductor field effect Answer transistor, insulated gate bipolar transistor, relay, electrochemical capacitor, transformer and output rectification circuit, it is characterised in that: The input of intelligent voltage decision circuit is connected with input power, and the control signal output of intelligent voltage decision circuit divides two-way Being connected with the coil two ends of relay one (K1) and the coil two ends of relay two (K2) respectively, relay one (K1) is normally opened to be touched Point one end be connected with input power one end, the other end of relay one (K1) normally opened contact divide three tunnels respectively with electrochemical capacitor one (C1) positive pole, the drain electrode of Metal-Oxide Semiconductor field-effect transistor one (M1) and Metal-Oxide Semiconductor field effect The drain electrode answering transistor three (M3) connects, and the source electrode of Metal-Oxide Semiconductor field-effect transistor one (M1) divides two-way respectively No. 1 pin of the drain electrode with Metal-Oxide Semiconductor field-effect transistor two (M2) and transformer is connected, gold The source electrode of genus-oxide semiconductor field effect transistor three (M3) divides two-way brilliant with Metal-Oxide Semiconductor field-effect respectively No. 2 pin of the drain electrode of body Guan Si (M4) and transformer connect, and the negative pole of electrochemical capacitor one (C1) divides three tunnels respectively Partly lead with the input power other end, the source electrode of Metal-Oxide Semiconductor field-effect transistor two (M2) and metal-oxide The source electrode of body field-effect transistor four (M4) connects, and one end of relay two (K2) normally opened contact is defeated with the direct-flow positive pole of rectifier bridge Going out end to connect, the other end of relay two (K2) normally opened contact divides positive pole, insulated gate respectively with electrochemical capacitor two (C2) for three tunnels The colelctor electrode of the colelctor electrode of bipolar transistor one (T1) and insulated gate bipolar transistor three (T3) connects, insulated gate bipolar The emitter stage of transistor npn npn one (T1) divides colelctor electrode and transformer respectively with insulated gate bipolar transistor two (T2) for the two-way No. 3 pin of primary coil connect, and the emitter stage two-way of insulated gate bipolar transistor three (T3) is brilliant with insulated gate bipolar respectively No. 4 pin of the colelctor electrode of body Guan Si (T4) and transformer connect, two inputs of rectifier bridge and input power Connect, the direct current cathode output end of rectifier bridge divide three tunnels respectively with electrochemical capacitor two (C2) negative pole, insulated gate bipolar transistor The emitter stage of the emitter stage of two (T2) and insulated gate bipolar transistor four (T4) connects, transformer secondary coil and output Rectification circuit connects.
2. according to claim 1 a kind of by the electric welding machine circuit of lithium battery power supply, it is characterised in that: described Intelligent electric Pressure decision circuit includes resistance one (R1), resistance two (R2), Zener diode (Z1), electric capacity (C3), photoelectrical coupler (U1), electricity One end of resistance one (R1) is connected with one end of input power, and the other end of resistance one (R1) connects with the negative electrode of Zener diode (Z1) Connect, the anode of Zener diode (Z1) divide three tunnels respectively with one end of resistance two (R2), one end of electric capacity (C3) and light thermocouple No. 1 pin of clutch (U1) connects, the other end of resistance two (R2) divide three tunnels respectively with the other end of input power, electric capacity (C3) No. 2 pin of the other end and photoelectrical coupler (U1) connect, and No. 3 pin and No. 4 pin of photoelectrical coupler (U1) are that control signal is defeated Go out end.
3. according to claim 1 a kind of by the electric welding machine circuit of lithium battery power supply, it is characterised in that: described light thermocouple The model of clutch (U1) is EL817.
4. according to claim 1 a kind of by the electric welding machine circuit of lithium battery power supply, it is characterised in that: described output is whole Current circuit includes power fast recovery diode one (D1), power fast recovery diode two (D2), power fast recovery diode one (D1) anode is connected with No. 5 pin of transformer secondary coil, the anode of power fast recovery diode two (D2) and transformer No. 7 pin of level coil are connected, the negative electrode of the negative electrode of power fast recovery diode one (D1) and power fast recovery diode two (D2) After connection, accessing the output cathode of electric welding machine, the output that No. 6 pin of the centre cap of transformer secondary coil access electric welding machine is born Pole.
5. according to claim 1 a kind of by the electric welding machine circuit of lithium battery power supply, it is characterised in that: described rectifier bridge Including diode three (D3), diode four (D4), diode five (D5), diode six (D6), the anode of diode three (D3) with The negative electrode of diode five (D5) connects, and the anode of diode four (D4) is connected with the negative electrode of diode six (D6), the one of rectifier bridge Individual input is positioned on the anode of diode three (D3) and the negative electrode connecting line of diode five (D5), another input of rectifier bridge End is positioned on the anode of diode four (D4) and the negative electrode connecting line of diode six (D6), the negative electrode of diode three (D3) and two poles The negative electrode of Guan Si (D4) connects, and the negative electrode of diode three (D3) is provided with rectifier bridge with the negative electrode connecting line of diode four (D4) Direct-flow positive pole output, the anode of diode five (D5) is connected with the anode of diode six (D6), the anode of diode five (D5) It is connected the direct current cathode output end being provided with rectifier bridge with the anode of diode six (D6).
CN201610806925.4A 2016-09-07 2016-09-07 A kind of electric welding machine circuit by lithium battery power supply Active CN106141378B (en)

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Publication number Priority date Publication date Assignee Title
CN109352159A (en) * 2018-12-27 2019-02-19 中正智控(江苏)智能科技有限公司 Dual output welding inverter power source and control method
CN112768440A (en) * 2021-01-20 2021-05-07 中山市领航光电科技有限公司 Rectifier bridge chip of integrated diode, linear rectifier circuit and manufacturing method
CN114012198A (en) * 2021-11-17 2022-02-08 深圳市佳士科技股份有限公司 Welding system, welding power supply and wire feeder
CN114346365A (en) * 2022-03-17 2022-04-15 广东福维德焊接股份有限公司 Portable digital underwater welding power supply

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CN206200300U (en) * 2016-09-07 2017-05-31 上海和宗焊接设备制造有限公司 A kind of electric welding machine circuit by lithium battery power supply

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JP2006026679A (en) * 2004-07-15 2006-02-02 Denyo Co Ltd Welding machine engine and battery driven in combination
CN103128419A (en) * 2013-01-18 2013-06-05 浙江容大电力工程有限公司 Portable rechargeable electric welding machine
CN104919691A (en) * 2013-05-23 2015-09-16 弗罗纽斯国际有限公司 Method for controlling a battery-powered welding device, and battery-powered welding device
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109352159A (en) * 2018-12-27 2019-02-19 中正智控(江苏)智能科技有限公司 Dual output welding inverter power source and control method
CN112768440A (en) * 2021-01-20 2021-05-07 中山市领航光电科技有限公司 Rectifier bridge chip of integrated diode, linear rectifier circuit and manufacturing method
CN114012198A (en) * 2021-11-17 2022-02-08 深圳市佳士科技股份有限公司 Welding system, welding power supply and wire feeder
CN114346365A (en) * 2022-03-17 2022-04-15 广东福维德焊接股份有限公司 Portable digital underwater welding power supply
CN114346365B (en) * 2022-03-17 2022-06-24 广东福维德焊接股份有限公司 Portable digital underwater welding power supply

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