CN103887864A - Charger special for storage battery matched with lifting electromagnet - Google Patents
Charger special for storage battery matched with lifting electromagnet Download PDFInfo
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Abstract
The invention discloses a charger special for a storage battery matched with a lifting electromagnet. The charger special for the storage battery matched with the lifting electromagnet comprises a three-phase alternating current power source, a voltage converter, a rectifier, a filter, an IGBT high-frequency on-off device, a CPU, a driving chip IC 2, a signal feedback circuit, a PWM circuit, a resistance capacitor, a diode protector and the like, has two charging modes of equalized charging and floating charging, and charges the storage battery through a constant voltage current limiting method. The charger special for the storage battery matched with the lifting electromagnet avoids the wrong charging method of overcharging or insufficient charging of the storage battery, prolongs the service life of the storage battery to the maximum extent, guarantees the safety of a production site, and has good dynamic and static performance.
Description
Technical field
The invention belongs to charging device field, be specifically related to lifting electromagnet Accessory Battery special charging machine, it relates to a kind of lifting electromagnet Accessory Battery special charging machine being applied in the industry such as harbour, iron and steel.
Background technology
Lifting electromagnet is used for the ferromagnetic substances such as handling and the carrying pig iron, steel scrap, square billet, sheet material, section bar in fields such as steel mill, steel rolling mill, steel scrap treatment plant, foundries.Because scene has the emergency case of power-off, therefore, lifting electromagnet need be equipped with lead acid accumulator in order to emergent need.But accumulator electric-quantity consumption is very large, charging process under normal circumstances, need to be carried out to storage battery in scene.Common charging system only has simple rectification and regulating circuit, while having electricity at the scene, storage battery is almost always in charged state, even if be full of electric weight, still cannot disconnect charge circuit, rationally not charge according to the charging demand of storage battery, cause accumulator super-charge, can cause for a long time the damage of storage battery, this charging modes causes very big harm to storage battery.
At present, have Three Difficult Issues in sector application, these Three Difficult Issues are the puzzlements that electromagnet battery charging system faces always.A difficult problem one: charge in batteries is the charge mode of from start to finish not power-off always, cannot carry out real-time Detection & Controling to the charge condition of storage battery, reduces the useful life of storage battery, and the significant wastage of cost and resource; A difficult problem two: for being long placed in the not storage battery of use, normal charge pattern cannot make it be full of; A difficult problem three: existing most storage battery chargers, volume is larger with deadweight, poor anti jamming capability, and device used is more, circuit structure complexity, and cost is high, difficult in maintenance.
Summary of the invention
In order to address the above problem, the inventor is for above-mentioned the deficiencies in the prior art, through design and researchp repeatedly, a kind of lifting electromagnet Accessory Battery special charging machine has been proposed, lifting electromagnet Accessory Battery special charging machine of the present invention has been captured the technical barrier of prior art, has obtained substantive technological break-through.
According to technical scheme of the present invention, a kind of lifting electromagnet Accessory Battery special charging machine is provided, it adopts voltage, current double closed-loop control system, lifting electromagnet Accessory Battery special charging machine comprises rectification function module, control voltage module, CPU central processing module and driving chip IC 2 modules, the voltage and current value that two adjusters regulate respectively storage battery is set, the output of voltage regulator and the common input as current regulator of current feedback output, the triangular wave co-controlling pulse-width modulation PWM output producing with output and the RC vibration of current regulator again, PWM exports to and drives chip IC 2 that input is provided, thereby control the grid G pole tension of high frequency break-make device IGBT, final charging voltage and the current value of controlling storage battery.
Particularly, rectification function module is linked into control voltage module carries out after step-down processing, is then divided into major loop rectification circuit and controls potential circuit; After the rectification of major loop rectification circuit major loop, by utilizing high frequency break-make device IGBT to carry out break-make control to the charging of storage battery; Controlling potential circuit is that CPU central processing circuit and driving chip IC 2 are powered.
Further, gather voltage feedback signal Vf, storage battery place circuit loop collection current feedback signal If from battery positive voltage, voltage feedback signal Vf and current feedback signal If are all sent to CPU central authorities and process, the output that CPU central authorities process is received and is driven in chip IC 2, then drives chip IC 2 to trigger high frequency break-make device IGBT.
Preferably, rectification function module is three-phase alternating-current supply, and control voltage module is device for transformer.
Further, the two ends of a rectifying device VC1 rectification output filter capacitor C0 in parallel, then be connected in series a high frequency break-make device IGBT, as the control switch of major loop; The collector electrode C utmost point of high frequency break-make device IGBT is received the positive pole of rectification output, and the emitter E utmost point is received the negative pole of rectification output, and the grid G utmost point is connected with the circuit that drives chip IC 2, drives chip IC 2 to be controlled by the high integrated chip IC1 in CPU central processing circuit.
In addition, CPU central processing module has been realized the function switching of the charging modes of constant voltage and current limiting and all fill/floating charge gear.CPU central processing circuit is mainly by high integrated chip IC1 the electric circuit constitute, and it exports direct controlling and driving chip IC 2.The first direct voltage V1 is linked into 15 pin of high integrated chip IC1, and 13 pin, 15 pin of IC1 seal in current-limiting resistance R1.Potentiometer W1 one end connects 2 pin of high integrated chip IC1, other end connection ground, middle sliding tap are connected to 1 pin of high integrated chip IC1, resistance R 2 two ends connect 2 pin, 5 pin of high integrated chip IC1, and capacitor C 1 one end connects 2 pin of high integrated chip IC1, and the other end connects ground GND1.Resistance R 0 two ends connect 3 pin, 4 pin of high integrated chip IC1, and battery current signal If is linked into 4 pin of high integrated chip IC1.12 pin of high integrated chip IC1,16 pin connect ground GND1.8 pin of high integrated chip IC1,9 pin contact resistance R7, the rear ground connection GND1 of capacitor C 3 respectively.Resistance R 6 two ends connect 6 pin, 7 pin of high integrated chip IC1, and wherein, battery tension signal Vf connects potentiometer W2, is linked into 6 pin of high integrated chip IC1 again, seal in ground connection GND1 after sampling resistor R5 simultaneously; The middle sliding tap of potentiometer W2 is connected to 6 pin of high integrated chip IC1, and capacitor C 2 is in parallel with sampling resistor R5.
Preferably, potentiometer W2, sampling resistor R4, sampling resistor R5 provide feedback voltage V f for control loop, detect resistance R 0 and provide feedback current If for control loop, charging current peak I s is by the partial pressure value of potentiometer W1, potentiometer W2, sampling resistor R5 and detect resistance R 0 and determine; Voltage U 2 is sent into current regulator with feedback current If, obtain output voltage U 3, output voltage U 3 compares with the triangular wave that resistance R 7, capacitor C 3 vibrations produce, obtain pwm pulse signal, 11 pin by high integrated chip IC1,14 pin recommend output, control and drive chip IC 2, then trigger high frequency break-make device IGBT through the chip IC 2 of overdriving.
In lifting electromagnet Accessory Battery special charging machine of the present invention, taking high frequency break-make device IGBT as core switching device, circuit design is voltage, current double closed-loop negative feedback control, detect in real time the current/voltage value of storage battery, realize the charging modes of constant voltage and current limiting, farthest extend the useful life of storage battery, and, according to the adjustable charge parameter of the specification of different batteries, ensure the adaptability of equipment.
Brief description of the drawings
Accompanying drawing 1 is electrical schematic diagram of the present invention;
Accompanying drawing 2 is rectification function circuit diagrams of the present invention;
Accompanying drawing 3 is control potential circuit figure of the present invention;
Accompanying drawing 4 is CPU central processing circuit figure of the present invention;
Accompanying drawing 5 is driving chip IC 2 circuit diagrams of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.Additionally, protection scope of the present invention only should be limited to following concrete structure or parts or design parameter.
Lifting electromagnet Accessory Battery special charging machine of the present invention comprises the compositions such as three-phase alternating-current supply, transformer, three-phase commutation bridge, electrochemical capacitor, IGBT intelligent object, voltage treatment circuit, high integrated CPU central processing element, drive circuit, fly-wheel diode, resistance capacitance.It adopts voltage, current double closed-loop control system, in order to realize two kinds of negative feedback structures of voltage and current, is provided with two adjusters in circuit, regulates respectively the voltage and current value of storage battery.The output of voltage regulator and the common input as current regulator of current feedback output, the triangular wave co-controlling pulse-width modulation PWM output producing with output and the RC vibration of current regulator again, PWM output is given again and is driven chip IC 2 that input is provided, thereby control the grid G pole tension of high frequency break-make device IGBT, finally control charging voltage and the current value of storage battery.From overall structure, current regulator and voltage regulator, as inner and outer rings, have so just formed voltage, current double closed-loop control system, realize feedback regulation and the detection of battery tension and current signal.
All fill/floating charge gear translation function that lifting electromagnet Accessory Battery special charging facility of the present invention are standby, floating charge shelves are for conventional charge in batteries, in charging process, utilize voltage, current double closed-loop control system to come Real-time Feedback and regulation voltage and current value, until be full of.If storage battery deep discharge or be long placed in not use, is switched to and all fills shelves, can activate with the high voltage of output the pole plate of storage battery, the same when in charging process, the adjustment of current/voltage value is still with floating charge state, until be full of.
In addition, the chip in lifting electromagnet Accessory Battery special charging machine all can directly drive.And charger outward appearance is small and exquisite, from heavy and light, strong adaptability, can be applicable to various scenes.Circuit structure is simple, and component number is few, and reliability is high, is convenient to safeguard
Below with reference to accompanying drawing 1-5, the present invention is described in detail.As shown in Figure 1, lifting electromagnet Accessory Battery special charging machine is made up of three-phase alternating-current supply, transformer, three-phase commutation bridge, electrochemical capacitor, IGBT intelligent object, voltage treatment circuit, high integrated CPU central processing element, drive circuit, fly-wheel diode and resistance, electric capacity.Whole circuit can be divided into rectification function module, control voltage module, CPU central processing module according to function, and drives chip IC 2 modules.Three-phase alternating-current supply is linked into device for transformer to carry out after step-down processing, is then divided into major loop rectification circuit and controls potential circuit.After major loop rectification, by utilizing high frequency break-make device IGBT, the charging of storage battery is carried out to break-make control.Controlling potential circuit is that CPU central processing circuit and driving chip IC 2 are powered.Gather voltage feedback signal Vf, storage battery place circuit loop collection current feedback signal If from battery positive voltage, voltage feedback signal Vf and current feedback signal If are all sent to CPU central authorities and process, the output that CPU central authorities process is received and is driven in chip IC 2, then drives chip IC 2 to trigger high frequency break-make device IGBT.
As shown in Figure 2, first major loop rectification circuit is that the output access rectification circuit module of transformer is carried out by alternating current to galvanic transformation.A two ends filter capacitor C0 in parallel of rectifying device VC1 rectification output, be connected in series again a high frequency break-make device IGBT, as the control switch of major loop, wherein, the collector electrode C utmost point of high frequency break-make device IGBT is received the positive pole of rectification output, the emitter E utmost point is received the negative pole of rectification output, and the grid G utmost point is connected with the circuit that drives chip IC 2, drives chip IC 2 to be controlled by the high integrated chip IC1 in CPU central processing circuit.Then fly-wheel diode VD1 in parallel, is connected in series into reactor TC1 and resistance R at output, finally receives on the corresponding both positive and negative polarity of batteries, forms charge in batteries loop.
As shown in Figure 3, controlling potential circuit divides two-way to obtain the first direct voltage V1 and the second direct voltage V2.First carry out step-down processing by control transformer T2, then pass through MDQ VC2(MDQ VC3) access Three-end voltage stabilizer VY1(Three-end voltage stabilizer VY2), before and after voltage stabilizing, and access filter capacitor C6(filter capacitor C9); Capacitor C 7(capacitor C 10) as frequency compensation, prevent self-oscillation and suppress High-frequency Interference; And filter capacitor C8(filter capacitor C11) to improve voltage-stabilized power supply circuit transient load response characteristic.The first direct voltage V1, the second direct voltage V2 respectively as CPU central processing element, drive the control voltage of chip IC 2.
CPU central processing module has been realized the function switching of the charging modes of constant voltage and current limiting and all fill/floating charge gear.CPU central processing circuit is mainly by high integrated chip IC1 the electric circuit constitute, and it exports direct controlling and driving chip IC 2.The first direct voltage V1 is linked into 15 pin of high integrated chip IC1, and 13 pin, 15 pin of IC1 seal in current-limiting resistance R1.Potentiometer W1 one end connects 2 pin of high integrated chip IC1, other end connection ground, middle sliding tap are connected to 1 pin of high integrated chip IC1, resistance R 2 two ends connect 2 pin, 5 pin of high integrated chip IC1, and capacitor C 1 one end connects 2 pin of high integrated chip IC1, and the other end connects ground GND1.Resistance R 0 two ends connect 3 pin, 4 pin of high integrated chip IC1, and battery current signal If is linked into 4 pin of high integrated chip IC1.12 pin of high integrated chip IC1,16 pin connect ground GND1.8 pin of high integrated chip IC1,9 pin contact resistance R7, the rear ground connection GND1 of capacitor C 3 respectively.Resistance R 6 two ends connect 6 pin, 7 pin of high integrated chip IC1, and wherein, battery tension signal Vf connects potentiometer W2, is linked into 6 pin of high integrated chip IC1 again, seal in ground connection GND1 after sampling resistor R5 simultaneously; The middle sliding tap of potentiometer W2 is connected to 6 pin of high integrated chip IC1, and capacitor C 2 is in parallel with sampling resistor R5.
As shown in Figure 4, potentiometer W2, sampling resistor R4, sampling resistor R5 provide feedback voltage V f for control loop, detect resistance R 0 and provide feedback current If for control loop, wherein charging current peak I s is by the partial pressure value of potentiometer W1, potentiometer W2, sampling resistor R5 and detect resistance R 0 and determine.When the voltage at storage battery two ends is during lower than rated value, feedback voltage V f is less than reference voltage U1, and regulator potentiometer W1 makes voltage regulator saturated, is output as voltage U 2.At this moment outer voltage is closed loop state, and the rising of magnitude of voltage does not exert an influence to circuit for charging machine system, and double loop system becomes an astatic single closed-loop system of electric current.Voltage U 2 is sent into current regulator with feedback current If; obtain output voltage U 3; output voltage U 3 compares with the triangular wave that resistance R 7, capacitor C 3 vibrations produce; obtain pwm pulse signal, 11 pin by high integrated chip IC1,14 pin recommend output, control and drive chip IC 2; trigger high frequency break-make device IGBT through the chip IC 2 of overdriving again; utilize the high frequency break-make characteristic of high frequency break-make device IGBT, ensure that charging major loop is instantaneous to open shutoff, effectively protect storage battery.Voltage carries out filtering through reactor TC1, ensures the stability of charging voltage.Finally feed back to the charging current of storage battery, realize the charging process that constant current is boosted.After being charged to a certain degree, storage battery both end voltage is close to reference voltage U1, voltage regulator is unsaturated, output voltage U 2 starts to decline, the relation of above-mentioned each variable still exists, and charge in batteries electric current I f starts to reduce gradually, and charging voltage Vf remains unchanged, realize voltage stabilizing and fall the charging process of stream, until be full of.
All fill/floating charge switch N1 is connected in series R4, and entirety is in parallel with resistance R 5.The positive pole of diode D1 and diode D2 is connected respectively 14 pin, 11 pin of high integrated chip IC1, and the other end is connected to 14 pin that drive chip IC 2.Toggle switch N1 is all fill/floating charge gear switch switch, when being long placed in, storage battery do not use or when deep discharge, accumulator internal resistance increases, effective energy reduces, now need to push and all fill shelves (all fill/floating charge switch N1 closure, resistance R 4 accesses), activate the pole plate of storage battery with high voltage, charging voltage Vf in charging process, rush the adjustment of electric current I f size and above-mentioned in full accord, when other situations taking floating charge state as charge in batteries.
As shown in Figure 5, the second direct voltage V2 is linked into 4 pin that drive chip IC 2, drives 13 pin, 6 pin of chip IC 2 to connect ground GND2.Resistance R 8 two ends connect 1,6 pin of IC2.Drive 4 pin of chip IC 2 to connect the positive pole of electrochemical capacitor C4 and the negative pole of voltage stabilizing didoe VW1, drive one end of 6 pin contact resistance R9 of chip IC 2, and the negative pole of electrochemical capacitor C5.The other end of the negative pole of electrochemical capacitor C4, the positive pole of VW1, resistance R 9 and the positive pole of electrochemical capacitor C5 all connect the emitter E utmost point of high frequency break-make device IGBT.One end of resistance R g connects 5 pin that drive chip IC 2, and the grid G that the other end connects IGBT extremely goes up.
With respect to prior art, the technical solution used in the present invention has following beneficial effect:
The present invention adopts voltage, current double closed-loop control system, in order to realize two kinds of negative feedback structures of voltage and current, is provided with two adjusters in circuit, regulates respectively the voltage and current value of storage battery.The output of voltage regulator and the common input as current regulator of current feedback output, the triangular wave co-controlling pulse-width modulation PWM output producing with output and the RC vibration of current regulator again, PWM output is given again and is driven chip IC 2 that input is provided, thereby control the grid G pole tension of high frequency break-make device IGBT, realize the charge mode of constant voltage and current limiting, finally controlled charging voltage and the electric current of storage battery.From overall structure, current regulator and voltage regulator are as inner and outer rings, voltage, current double closed-loop control system are so just formed, the Real-time Feedback of realizing battery tension and current signal regulates and detects, improve site safety coefficient, and extended the useful life of storage battery, therefore, first difficult problem is solved.
The present invention is provided with all fill/floating charge translation function, and floating charge is for conventional charge in batteries, utilizes voltage, current double closed-loop control system in above-mentioned to come Real-time Feedback and regulation voltage and current value, until be full of in charging process.If storage battery deep discharge or be long placed in not use, is switched to all and fills, can activate with the high voltage of output the pole plate of storage battery, the same when in charging process, the adjustment of current/voltage value is still with floating charge state, until be full of, this has just solved second difficult problem.
The present invention adopts high integrated chip to drive and controls, and chip all can directly drive, and antijamming capability is strong.Realizing under same function prerequisite, the dynamo-electric line structure of lifting electromagnet Accessory Battery special charging is simple, and component number used is little, therefore, possess outward appearance small and exquisite, low from heavy and light, cost, the feature such as easy to operate, can be used as device and is placed in magnet control cabinet inside.Strong adaptability, can be applicable to various scenes, and reliability is high, is convenient to safeguard.
Therefore, lifting electromagnet Accessory Battery special charging facility have good dynamic and static performance, have both solved general constant voltage charge at the overcurrent charging phenomenon that the charging initial stage occurs, have solved again general constant current charge and have occurred current charge problem in the charging later stage.Also have floating charge simultaneously, all fill function.In addition, from heavy and light, cost is low, and circuit structure is simple, and components and parts number is few, and reliability is high, and cost is low, practical, and is convenient to safeguard and promote.
The above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.This area those skilled in the art are appreciated that the spirit and scope of the present invention in the case of not deviating from claims definition, can in form and details, make various amendments.
Claims (7)
1. a lifting electromagnet Accessory Battery special charging machine, it is characterized in that, it adopts voltage, current double closed-loop control system, lifting electromagnet Accessory Battery special charging machine comprises rectification function module, control voltage module, CPU central processing module and driving chip IC 2 modules, the voltage and current value that two adjusters regulate respectively storage battery is set, the output of voltage regulator and the common input as current regulator of current feedback output, the triangular wave co-controlling pulse-width modulation PWM output producing with output and the RC vibration of current regulator again, PWM exports to and drives chip IC 2 that input is provided, thereby control the grid G pole tension of high frequency break-make device IGBT, final charging voltage and the current value of controlling storage battery.
2. lifting electromagnet Accessory Battery special charging machine according to claim 1, is characterized in that, rectification function module is linked into control voltage module carries out after step-down processing, is then divided into major loop rectification circuit and controls potential circuit; After the rectification of major loop rectification circuit major loop, by utilizing high frequency break-make device IGBT to carry out break-make control to the charging of storage battery; Controlling potential circuit is that CPU central processing circuit and driving chip IC 2 are powered.
3. lifting electromagnet Accessory Battery special charging machine according to claim 1 and 2, it is characterized in that, gather voltage feedback signal Vf, storage battery place circuit loop collection current feedback signal If from battery positive voltage, voltage feedback signal Vf and current feedback signal If are all sent to CPU central authorities and process, the output that CPU central authorities process is received and is driven in chip IC 2, then drives chip IC 2 to trigger high frequency break-make device IGBT.
4. lifting electromagnet Accessory Battery special charging machine according to claim 1, is characterized in that, rectification function module is three-phase alternating-current supply, and control voltage module is device for transformer.
5. lifting electromagnet Accessory Battery special charging machine according to claim 4, is characterized in that, a two ends filter capacitor C0 in parallel of rectifying device VC1 rectification output, then be connected in series a high frequency break-make device IGBT, as the control switch of major loop; The collector electrode C utmost point of high frequency break-make device IGBT is received the positive pole of rectification output, and the emitter E utmost point is received the negative pole of rectification output, and the grid G utmost point is connected with the circuit that drives chip IC 2, drives chip IC 2 to be controlled by the high integrated chip IC1 in CPU central processing circuit.
6. lifting electromagnet Accessory Battery special charging machine according to claim 2, is characterized in that, CPU central processing module has been realized the function switching of the charging modes of constant voltage and current limiting and all fill/floating charge gear.CPU central processing circuit is mainly by high integrated chip IC1 the electric circuit constitute, and it exports direct controlling and driving chip IC 2.The first direct voltage V1 is linked into 15 pin of high integrated chip IC1, and 13 pin, 15 pin of IC1 seal in current-limiting resistance R1.Potentiometer W1 one end connects 2 pin of high integrated chip IC1, other end connection ground, middle sliding tap are connected to 1 pin of high integrated chip IC1, resistance R 2 two ends connect 2 pin, 5 pin of high integrated chip IC1, and capacitor C 1 one end connects 2 pin of high integrated chip IC1, and the other end connects ground GND1.Resistance R 0 two ends connect 3 pin, 4 pin of high integrated chip IC1, and battery current signal If is linked into 4 pin of high integrated chip IC1.12 pin of high integrated chip IC1,16 pin connect ground GND1.8 pin of high integrated chip IC1,9 pin contact resistance R7, the rear ground connection GND1 of capacitor C 3 respectively.Resistance R 6 two ends connect 6 pin, 7 pin of high integrated chip IC1, and wherein, battery tension signal Vf connects potentiometer W2, is linked into 6 pin of high integrated chip IC1 again, seal in ground connection GND1 after sampling resistor R5 simultaneously; The middle sliding tap of potentiometer W2 is connected to 6 pin of high integrated chip IC1, and capacitor C 2 is in parallel with sampling resistor R5.
7. lifting electromagnet Accessory Battery special charging machine according to claim 2, it is characterized in that, potentiometer W2, sampling resistor R4, sampling resistor R5 provide feedback voltage V f for control loop, detect resistance R 0 and provide feedback current If for control loop, charging current peak I s is by the partial pressure value of potentiometer W1, potentiometer W2, sampling resistor R5 and detect resistance R 0 and determine; Voltage U 2 is sent into current regulator with feedback current If, obtain output voltage U 3, output voltage U 3 compares with the triangular wave that resistance R 7, capacitor C 3 vibrations produce, obtain pwm pulse signal, 11 pin by high integrated chip IC1,14 pin recommend output, control and drive chip IC 2, then trigger high frequency break-make device IGBT through the chip IC 2 of overdriving.
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Cited By (5)
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| CN105572593A (en) * | 2014-10-11 | 2016-05-11 | 中兴通讯股份有限公司 | Device and method for battery in-position detection, and charging system |
| CN106549574A (en) * | 2016-11-25 | 2017-03-29 | 沈阳新阳光机电科技有限公司 | High-power DC/DC converter system and its control method |
| CN107171389A (en) * | 2017-06-08 | 2017-09-15 | 深圳市沃特玛电池有限公司 | Battery charge control circuit |
| CN107947248A (en) * | 2016-10-12 | 2018-04-20 | 许继电源有限公司 | A kind of equal floating charge conversion control circuit of phased DC power supply of 12 pulse waves |
| WO2020113603A1 (en) * | 2018-12-05 | 2020-06-11 | 中车长春轨道客车股份有限公司 | Charger and rail vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105572593A (en) * | 2014-10-11 | 2016-05-11 | 中兴通讯股份有限公司 | Device and method for battery in-position detection, and charging system |
| CN105572593B (en) * | 2014-10-11 | 2019-12-13 | 中兴通讯股份有限公司 | device and method for detecting battery in place and charging system |
| CN107947248A (en) * | 2016-10-12 | 2018-04-20 | 许继电源有限公司 | A kind of equal floating charge conversion control circuit of phased DC power supply of 12 pulse waves |
| CN106549574A (en) * | 2016-11-25 | 2017-03-29 | 沈阳新阳光机电科技有限公司 | High-power DC/DC converter system and its control method |
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| WO2020113603A1 (en) * | 2018-12-05 | 2020-06-11 | 中车长春轨道客车股份有限公司 | Charger and rail vehicle |
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| CN103887864B (en) | 2016-09-07 |
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