CN103441673A - Multi-module parallel operation method of large-power positive and negative reversing pulse power source - Google Patents
Multi-module parallel operation method of large-power positive and negative reversing pulse power source Download PDFInfo
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- CN103441673A CN103441673A CN2013103638861A CN201310363886A CN103441673A CN 103441673 A CN103441673 A CN 103441673A CN 2013103638861 A CN2013103638861 A CN 2013103638861A CN 201310363886 A CN201310363886 A CN 201310363886A CN 103441673 A CN103441673 A CN 103441673A
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Abstract
The invention discloses a multi-module parallel operation method of a large-power positive and negative reversing pulse power source. The multi-module parallel operation method of the large-power positive and negative reversing pulse power source comprises the following steps that a positive/negative direction upper pipe switch pipe and a positive/negative direction lower pipe switch pipe of each H-bridge small-power module are respectively connected with an independent isolation driving unit, the output end of each isolation driving unit is connected with the grid electrode of the corresponding switch pipe through a grid electrode current limiting resistor, the negative pole of each isolation driving unit and the source electrode of the corresponding switch pipe are connected and grounded, all the H-bridge small-power modules are connected in parallel, and the isolation driving units corresponding to the switch pipes in the same positions in each H-bridge small-power module are connected with a driving power source. The multi-module parallel operation method of the large-power positive and negative reversing pulse power source is simple in parallel operation method, is easy to operate, utilizes a few driving power sources, and saves the cost. The large-power positive and negative reversing pulse power source manufactured through the multi-module parallel operation method is stable and reliable in performance, and capable of meeting the requirements for the large-power positive and negative reversing pulse power source of electroplating.
Description
Technical field
The application's power technique fields, particularly a kind of multimode parallel operation method of high-power positive and negative commutating pulse power supply.
Background technology
Rectifier power source electroplates for electronic circuit board or the metal material surface electroplating processes provides direct current.Along with complexity, thickness, the continuous increase of path density, and the diminishing of aperture and path width, traditional direct current electrode position becomes more and more difficult, even causes defective products.In order to be equilibrated at surface, in hole and micropore, electroplate especially, force the reduction current density, but can extend electroplating time like this, electroplating time is to being difficult to the stage of accepting.Along with positive and negative commutating pulse power supply and the arrival that is suitable for the chemical composition of electroplating process, shorten electroplating time and become reality.
Because a lot of plating are large with positive and negative commutating pulse power requirement power, for these high-power positive and negative commutating pulse power supplys, mostly use high-power switch tube to make reversing switch, and high-power switch tube is low due to switching frequency, be difficult to make the high-quality high-power positive and negative commutating pulse power supply of low ripple.And the high-power switch tube cost is high, be with special-purpose driver module, and the price of special-purpose driver module is not low yet, has further raised cost.
Therefore, adopt the parallel operation of small-power module to form the mode that high power module becomes the high-power positive and negative commutating pulse power supply of a kind of both economical effective acquisition; The small-power module that common small power switch pipe forms, as shown in Figure 1, the energy source that wherein DC power supply is highpowerpulse.But there are many deficiencies in current parallel operation mode; Such as the parallel operation mode shown in Fig. 2, respectively by the paralleled power switches forward of small-power module, oppositely go up paralleled power switches, downward paralleled power switches, oppositely descend paralleled power switches, directly with the switching tube of a plurality of parallel connections, replace original switching tube forward, oppositely go up switching tube, switching tube and oppositely descend switching tube downward, this parallel operation mode unstable, affect the use of power supply, thereby plating is caused to irremediable defect.The parallel operation mode shown in Fig. 3 and for example, each small power switch pipe all will be used driver for isolating, and each driver for isolating needs again independently power supply, causes driving power too many, and complex structure, cost are high; Perhaps as Fig. 2, two kinds of modes of Fig. 3, engage, but no matter which kind of mode parallel operation all is difficult to allow the power supply reliably working.In addition, the small-power module parallel operation that common small power switch pipe forms, its small power switch pipe easily damages.Therefore, need a kind of high-power positive and negative pulse power multimode parallel operation method of changing, further improve stability and the reliability of power supply, to meet the demand of growing electroplating technology.
Summary of the invention
The application provides a kind of multimode parallel operation method of high-power positive and negative commutating pulse power supply newly.
The application can be achieved by taking following technical scheme:
The application discloses a kind of multimode parallel operation method of high-power positive and negative commutating pulse power supply, be included in the switching tube of pipe forward of H bridge small-power module, oppositely upper pipe switching tube, oppositely lower pipe switching tube, manage switching tube downward, amount on four switching tubes and connect respectively an independently isolation drive unit, the output process grid current-limiting resistance of each isolation drive unit connects with the grid of corresponding switching tube, and the negative pole of each isolation drive unit connects ground connection altogether with the source electrode of corresponding switching tube, output cathode parallel connection by several H bridge small-power modules, the output negative pole parallel connection of H bridge small-power module, and, in each H bridge small-power module, the isolation drive unit corresponding to switching tube of same area connects a driving power altogether, the positive pole of managing forward the isolation drive unit that switching tube is corresponding that is each H bridge small-power module connects a driving power altogether, the positive pole of managing downward the isolation drive unit that switching tube is corresponding of each H bridge small-power module connects a driving power altogether, the positive pole of the isolation drive unit that oppositely upper pipe switching tube is corresponding of each H bridge small-power module connects a driving power altogether, the positive pole of the isolation drive unit that oppositely lower pipe switching tube is corresponding of each H bridge small-power module connects a driving power altogether.
Further, the multimode parallel operation method of the application's high-power positive and negative commutating pulse power supply, also be included between each isolation drive unit and corresponding driving power and connect at least one isolating diode, for isolation drive unit and driving power are kept apart; The positive pole of isolating diode connects driving power, and the negative pole of isolating diode connects the isolation drive unit.
Further, the multimode parallel operation method of the application's high-power positive and negative commutating pulse power supply, connect at least one isolation resistance between the earth connection of the source electrode that also is included in each switching tube and the negative pole of corresponding isolation drive unit, separate for the power supply ground by switching tube and isolation drive unit.
Further, the multimode parallel operation method of the application's high-power positive and negative commutating pulse power supply, the output that also is included in each H bridge small-power module connects at least one isolation inductance, for each H bridge small-power module is kept apart, reduces the phase mutual interference of each H bridge small-power intermodule.
Owing to adopting above technical scheme, the application's beneficial effect is:
The multimode parallel operation method of the application's high-power positive and negative commutating pulse power supply, the parallel operation mode is simple, easy to operate, and the driving power used is few, cost savings.High-power positive and negative commutating pulse power source performance prepared by employing the application's multimode parallel operation method is stable, reliable, can meet the requirement of electroplating powerful positive and negative commutating pulse power supply.
The accompanying drawing explanation
Fig. 1 is the circuit block diagram of the H bridge small-power module that forms of the small power switch pipe of the positive and negative commutating pulse power supply of H bridge-type of prior art.
Fig. 2 is the circuit diagram of a kind of small-power module parallel operation mode of the prior art.
Fig. 3 is the circuit diagram of another kind of small-power module parallel operation mode of the prior art.
Fig. 4 is the circuit diagram of the H bridge small-power module of the embodiment of the present application.
Fig. 5 is the schematic diagram of two H bridge small-power modules parallel operation of the embodiment of the present application.
Fig. 6 is the parallel operation wiring schematic diagram of the high-power positive and negative commutating pulse power supply of the embodiment of the present application.
Embodiment
The key of the multimode parallel operation method of the application's high-power positive and negative commutating pulse power supply is, insulating power supply technology and H bridge small-power module isolation technology.At first, the application connects a driving power altogether by the isolation drive unit of the switching tube of the same area of each H bridge small-power module, with the quantity that reduced driving power, cost-saving, and due to the complex structure degree that has reduced parallel operation, reduce each interelement influencing each other, made stability and the reliability of the high-power positive and negative commutating pulse power supply obtained by this parallel operation method be improved.
Secondly, in the multimode parallel operation method of the application's improved high-power positive and negative commutating pulse power supply, also the output in each H bridge small-power module connects at least one isolation inductance, to realize the isolation of H bridge small-power module.
In the application's preferred implementation, connect at least one isolating diode between each isolation drive unit and corresponding driving power, for isolation drive unit and driving power are kept apart; The positive pole of isolating diode connects driving power, and the negative pole of isolating diode connects the isolation drive unit.Preferred, connect at least one isolation resistance between the earth connection of the source electrode of each switching tube and the negative pole of corresponding isolation drive unit, for the power supply ground by switching tube and isolation drive unit, separate.
Preferred forms below in conjunction with accompanying drawing to the application is described in detail.
At first, the structure of the H bridge small-power module that this is routine as shown in Figure 4, H bridge small-power module contains manages switching tube 106 forward, oppositely above manage switching tube 206, pipe switching tube 306 oppositely, manage downward switching tube 406, amount to four switching tubes, each switching tube connects an independently isolation drive unit, with manage forward switching tube 106 corresponding for pu isolation drive unit 102, corresponding with reverse upper pipe switching tube 206 is nu isolation drive unit 202, corresponding with reverse lower pipe switching tube 306 is nd isolation drive unit 302, with manage downward switching tube 406 corresponding for pd isolation drive unit 402.The output of isolation drive unit is connected with the grid of corresponding switching tube with 405 through grid current-limiting resistance 105,205,305, the negative pole of each isolation drive unit connects ground connection altogether with the source electrode of corresponding switching tube, and between the earth connection of the source electrode of each switching tube and corresponding isolation drive unit, and between the power supply ground 108,208,308 and 408 of isolation drive unit, be connected with an isolation resistance 107,207,307 and 407.The positive pole of isolation drive unit 102,202,302,402 respectively by isolating diode 103,203,303 and 403 with corresponding driving power 104,204,304,404 connections, concrete, the isolation drive unit 102 of managing forward switching tube 106 correspondences connects VCC_pu power supply 104 by Dpu isolating diode 103 (H bridge small-power module 1 is Dpu1, and H bridge small-power module 2 is Dpu2); The isolation drive unit 402 of managing downward switching tube 406 correspondences connects VCC_pd power supply 404 by Dpd isolating diode 403 (H bridge small-power module 1 is Dd1, and H bridge small-power module 2 is Dpd2); Oppositely the upper pipe corresponding isolation drive unit 202 of switching tube 206 connects VCC_nu power supply 204 by Dnu isolating diode 203 (H bridge small-power module 1 is Dnu1, and H bridge small-power module 2 is Dnu2); Oppositely the lower pipe corresponding isolation drive unit 302 of switching tube 306 connects VCC_nd power supply 304 by Dnd isolating diode 303 (H bridge small-power module 1 is Dnd1, and H bridge small-power module 2 is Dnd2).Output cathode end in H bridge small-power module is connected with an isolation inductance 602, and the output cathode 601 of H bridge small-power module is connected with the positive pole 702 of load 701, and the output negative pole 603 of H bridge small-power module is connected with the negative pole 703 of load 701.Manage forward the drain electrode of switching tube and oppositely the drain electrode of upper pipe switching tube jointly be connected to the positive pole 501 of DC power supply, oppositely the grid of lower pipe switching tube and the grid of managing downward switching tube are connected to the negative pole 502 of DC power supply jointly.Manage forward the input termination pu source driving pulse 101 of the isolation drive unit 102 of switching tube 106 correspondences, oppositely above manage the input termination nu source driving pulse 201 of the isolation drive unit 202 of switching tube 206 correspondences, manage the input termination nd source driving pulse 301 of the isolation drive unit 302 of switching tube 306 correspondences oppositely, manage downward the input termination pd source driving pulse 401 of the isolation drive unit 402 of switching tube 406 correspondences.In this example, all switching tube an ancient unit of weight adopts metal-oxide-semiconductor or IGBT pipe.
The H bridge small-power module parallel operation that this is routine obtains powerful positive and negative commutating pulse power supply, concrete grammar as shown in Figure 5 and Figure 6, Fig. 5 is the parallel operation schematic diagram of two H bridge small-power modules, Fig. 6 is the parallel operation schematic diagram of a plurality of H bridge small-power modules, the positive pole of managing forward the isolation drive unit that switching tube is corresponding of each H bridge small-power module is connected on power supply VCC_pu jointly by Dpu isolating diode (H bridge small-power module 1 is Dpu1, and H bridge small-power module 2 is Dpu2); The positive pole of managing downward the isolation drive unit that switching tube is corresponding of each H bridge small-power module is connected on power supply VCC_pd jointly by Dpd isolating diode (H bridge small-power module 1 is Dd1, and H bridge small-power module 2 is Dpd2); The positive pole of the isolation drive unit that oppositely upper pipe switching tube is corresponding of each H bridge small-power module is connected on power supply VCC_nu jointly by Dnu isolating diode (H bridge small-power module 1 is Dnu1, and H bridge small-power module 2 is Dnu2); The positive pole of the isolation drive unit that oppositely lower pipe switching tube is corresponding of each H bridge small-power module is connected on power supply VCC_nd jointly by Dnd isolating diode (H bridge small-power module 1 is Dnd1, and H bridge small-power module 2 is Dnd2).Be connected with the positive pole of load after the output cathode parallel connection of each H bridge small-power module, be connected with the negative pole of load after the output negative pole parallel connection of each H bridge small-power module.The positive pole of DC power supply is connected with the drain electrode of oppositely above managing switching tube with the switching tube of managing forward of each H bridge small-power module respectively, and the negative pole of DC power supply is connected with the source electrode of reverse lower pipe switching tube with the switching tube of managing downward of each H bridge small-power module respectively; Thereby obtain the high-power positive and negative commutating pulse power supply by several H bridge small-power module parallel operation.
The multimode parallel operation method of the high-power positive and negative commutating pulse power supply of the present embodiment, several H bridge small-power module parallel operation are formed to powerful positive and negative commutating pulse power supply, concrete, the isolation drive unit corresponding to switching tube of same area in each H bridge small-power module is connected on a driving power altogether by isolating diode respectively.And, between the earth connection of the source electrode of each switching tube and corresponding isolation drive unit, adopt isolation resistance to separate; Output cathode in each H bridge small-power module adopts the isolation inductance that each H bridge small-power module is separated.The multimode parallel operation method that this is routine, the parallel operation method and structure is all fairly simple, reduced the quantity of driving power, simultaneously, reduced the isolation drive unit influenced each other, reduced switching tube on the impact on the power supply ground of isolation drive power supply, reduced the phase mutual interference between each H bridge small-power module, effectively raise stability and the reliability of the high-power positive and negative commutating pulse power supply of institute's parallel operation acquisition, the demand of the growing plating that makes high-power positive and negative commutating pulse power supply to meet.
Only as described above, it is only the application's preferred embodiment, certainly can not limit with this scope of the application's enforcement, the content of generally putting down in writing according to the application's claim and application specification has been done simple equivalence and has been changed and modify, within all still belonging to the application's claim scope.In addition, summary part and title are only the use for auxiliary patent document search, not are used for limiting the application's interest field.
Claims (4)
1. the multimode parallel operation method of a high-power positive and negative commutating pulse power supply, it is characterized in that: be included in the switching tube of pipe forward of H bridge small-power module, oppositely upper pipe switching tube, oppositely lower pipe switching tube, manage switching tube downward, amount on four switching tubes and connect respectively an independently isolation drive unit, the output process grid current-limiting resistance of each isolation drive unit connects with the grid of corresponding switching tube, and the negative pole of each isolation drive unit connects ground connection altogether with the source electrode of corresponding switching tube;
By the output cathode parallel connection of several described H bridge small-power modules, the output negative pole parallel connection of H bridge small-power module, and in each H bridge small-power module, the isolation drive unit corresponding to switching tube of same area connects a driving power altogether; The positive pole of managing forward the isolation drive unit that switching tube is corresponding that is each H bridge small-power module connects a driving power altogether, the positive pole of managing downward the isolation drive unit that switching tube is corresponding of each H bridge small-power module connects a driving power altogether, the positive pole of the isolation drive unit that oppositely upper pipe switching tube is corresponding of each H bridge small-power module connects a driving power altogether, and the positive pole of the isolation drive unit that oppositely lower pipe switching tube is corresponding of each H bridge small-power module connects a driving power altogether.
2. the multimode parallel operation method of high-power positive and negative commutating pulse power supply according to claim 1, it is characterized in that: also be included between each isolation drive unit and corresponding driving power and connect at least one isolating diode, for isolation drive unit and driving power are kept apart; The positive pole of isolating diode connects driving power, and the negative pole of isolating diode connects the isolation drive unit.
3. the multimode parallel operation method of high-power positive and negative commutating pulse power supply according to claim 1, it is characterized in that: connect at least one isolation resistance between the earth connection of the source electrode that also is included in each switching tube and the negative pole of corresponding isolation drive unit, separate for the power supply ground by switching tube and isolation drive unit.
4. the multimode parallel operation method of high-power positive and negative commutating pulse power supply according to claim 1, it is characterized in that: the output that also is included in each H bridge small-power module connects at least one isolation inductance, for each H bridge small-power module is kept apart, reduce the phase mutual interference of each H bridge small-power intermodule.
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| CN201310363886.1A CN103441673B (en) | 2013-08-20 | 2013-08-20 | A kind of multimode parallel operation method of high-power positive and negative commutating pulse power supply |
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| CN201310363886.1A CN103441673B (en) | 2013-08-20 | 2013-08-20 | A kind of multimode parallel operation method of high-power positive and negative commutating pulse power supply |
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Cited By (1)
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| CN103929104A (en) * | 2014-02-24 | 2014-07-16 | 陈通朴 | Drive circuit without extra drive power source |
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Effective date of registration: 20230328 Address after: 332000 No. 6, Jinxiu 1st Road, Shacheng Industrial Park, Chaisang District, Jiujiang City, Jiangxi Province Patentee after: Jiangxi Liyuan Haina Technology Co.,Ltd. Address before: 523000 Baiyinpu, Jiujiang Shuicun, Changping Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN LI & YUAN ELECTRICAL EQUIPMENT Co.,Ltd. |