CN103441673B - A kind of multimode parallel operation method of high-power positive and negative commutating pulse power supply - Google Patents
A kind of multimode parallel operation method of high-power positive and negative commutating pulse power supply Download PDFInfo
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Abstract
This application discloses a kind of multimode parallel operation method of high-power positive and negative commutating pulse power supply, the forwards/reverse being included in H bridge small-power module, under pipe switching tube, forwards/reverse, pipe switching tube connects an independently isolation drive unit respectively, the output of each isolation drive unit connects with the grid of corresponding switching tube through grid current-limiting resistance, and the negative pole of each isolation drive unit and the source electrode of corresponding switching tube connect ground connection altogether; Then, by H bridge small-power wired in parallel described in several, the isolation drive unit that in each H bridge small-power module, the switching tube of same area is corresponding connects a driving power altogether.The multimode parallel operation method of the high-power positive and negative commutating pulse power supply of the application, parallel operation mode is simple, easy to operate, and the driving power used is few, cost savings.The high-power positive and negative commutating pulse power source performance adopting the multimode parallel operation method of the application to prepare is stable, reliable, can meet the requirement of plating to powerful positive and negative commutating pulse power supply.
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 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, electroplating especially in hole and micropore, forcing reduction current density, but can extend electroplating time like this, electroplating time is to the stage being difficult to accept.Along with positive and negative commutating pulse power supply and the arrival of chemical composition being suitable for electroplating process, shorten electroplating time and become reality.
Large owing to much electroplating with positive and negative commutating pulse power requirement power, high-power switch tube is mostly used to make reversing switch for these high-power positive and negative commutating pulse power supplys, and high-power switch tube is low due to switching frequency, be difficult to the high-quality high-power positive and negative commutating pulse power supply making low ripple.Further, high-power switch tube cost is high, and with special driver module, and the price of special driver module is not low yet, has raised cost further.
Therefore, small-power module parallel operation composition high power module is adopted to become the mode of the high-power positive and negative commutating pulse power supply of a kind of both economical effective acquisition; The small-power module of common small power switch pipe composition, as shown in Figure 1, wherein DC power supply is the energy source of highpowerpulse.But there is many deficiencies in current parallel operation mode; Than parallel operation mode as shown in Figure 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, namely the direct switching tube with multiple parallel connection is replaced original switching tube forward, is oppositely gone up switching tube, downward switching tube and oppositely descend switching tube, the instability of this parallel operation mode, affect the use of power supply, thus irremediable defect is caused to plating.Parallel operation mode as shown in Figure 3 again, each small power switch pipe is all with driver for isolating, and each driver for isolating needs again independently power supply, and cause driving power too many, complex structure, cost are high; Or as Fig. 2, Fig. 3 two kinds of modes engage, but no matter which kind of mode parallel operation is all difficult to allow power supply reliably working.In addition, the small-power module parallel operation of common small power switch pipe composition, its small power switch pipe easily damages.Therefore, need a kind of high-powerly positive and negatively to change pulse power multimode parallel operation method, improve stability and the reliability of power supply further, to meet the demand of growing electroplating technology.
Summary of the invention
This 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:
This 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, downward pipe switching tube, amount on four switching tubes and connect an independently isolation drive unit respectively, the output of each isolation drive unit connects with the grid of corresponding switching tube through grid current-limiting resistance, and the negative pole of each isolation drive unit and the source electrode of corresponding switching tube connect ground connection altogether, the output cathode of several H bridge small-power modules is in parallel, the output negative pole of H bridge small-power module is in parallel, and, the isolation drive unit that in each H bridge small-power module, the switching tube of same area is corresponding connects a driving power altogether, namely the positive pole of the isolation drive unit that the switching tube of pipe forward of each H bridge small-power module is corresponding connects a driving power altogether, the positive pole of the isolation drive unit that the switching tube of pipe downward of each H bridge small-power module is corresponding connects a driving power altogether, the positive pole of the reverse above isolation drive unit that pipe switching tube is corresponding of each H bridge small-power module connects a driving power altogether, the positive pole of the reverse isolation drive unit that pipe switching tube is corresponding down of each H bridge small-power module connects a driving power altogether.
Further, the multimode parallel operation method of the high-power positive and negative commutating pulse power supply of the application, is also included between each isolation drive unit and corresponding driving power and connects at least one isolating diode, for isolation drive unit and driving power being kept apart; The positive pole of isolating diode connects driving power, and the negative pole of isolating diode connects isolation drive unit.
Further, the multimode parallel operation method of the high-power positive and negative commutating pulse power supply of the application, also be included in the source electrode of each switching tube and connect at least one isolation resistance with between the earth connection of the negative pole of corresponding isolation drive unit, separate for the power supply by switching tube and isolation drive unit.
Further, the multimode parallel operation method of the high-power positive and negative commutating pulse power supply of the application, the output being also included in each H bridge small-power module connects at least one isolation inductance, for each H bridge small-power module being kept apart, reduces the mutual interference of each H bridge small-power intermodule.
Owing to adopting above technical scheme, the beneficial effect of the application is:
The multimode parallel operation method of the high-power positive and negative commutating pulse power supply of the application, parallel operation mode is simple, easy to operate, and the driving power used is few, cost savings.The high-power positive and negative commutating pulse power source performance adopting the multimode parallel operation method of the application to prepare is stable, reliable, can meet the requirement of plating to powerful positive and negative commutating pulse power supply.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of the H bridge small-power module of the small power switch pipe composition 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 high-power positive and negative commutating pulse power supply of the application is, insulating power supply technology and H bridge small-power module isolation technology.First, the isolation drive unit of the switching tube of the same area of each H bridge small-power module is connect a driving power by the application altogether, to decrease the quantity, cost-saving of driving power, and owing to reducing the complex structure degree of parallel operation, reduce each interelemently to influence each other, the stability of the high-power positive and negative commutating pulse power supply obtained by this parallel operation method and reliability are improved.
Secondly, in the multimode parallel operation method of the high-power positive and negative commutating pulse power supply of the improvement of the application, also connect at least one isolation inductance, to realize the isolation of H bridge small-power module at the output of each H bridge small-power module.
In the preferred implementation of the application, between each isolation drive unit and corresponding driving power, connect at least one isolating diode, for isolation drive unit and driving power being kept apart; The positive pole of isolating diode connects driving power, and the negative pole of isolating diode connects isolation drive unit.Preferred, connect at least one isolation resistance at the source electrode of each switching tube with between the earth connection of the negative pole of corresponding isolation drive unit, separate for the power supply by switching tube and isolation drive unit.
Be described in detail below in conjunction with the preferred forms of accompanying drawing to the application.
First, the structure of the H bridge small-power module of this example as shown in Figure 4, H bridge small-power module contains pipe switching tube 106 forward, oppositely upper pipe switching tube 206, oppositely lower pipe switching tube 306, pipe switching tube 406 downward, amount to four switching tubes, each switching tube connects an independently isolation drive unit, corresponding with pipe switching tube 106 is forward 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, corresponding with pipe switching tube 406 is downward 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 and the source electrode of corresponding switching tube connect ground connection altogether, and between the source electrode and the earth connection of corresponding isolation drive unit of each switching tube, namely and isolation drive unit power supply ground 108,208, between 308 and 408, be connected with an isolation resistance 107,207,307 and 407.The positive pole of isolation drive unit 102,202,302,402 is connected respectively by isolating diode 103,203,303 and 403 and corresponding driving power 104,204,304,404, concrete, the isolation drive unit 102 of pipe switching tube 106 correspondence connects VCC_pu power supply 104 by Dpu isolating diode 103 (H bridge small-power module 1 is Dpu1, H bridge small-power module 2 is Dpu2) forward; The isolation drive unit 402 of pipe switching tube 406 correspondence connects VCC_pd power supply 404 by Dpd isolating diode 403 (H bridge small-power module 1 is Dd1, H bridge small-power module 2 is Dpd2) downward; The isolation drive unit 202 that oppositely upper pipe switching tube 206 is corresponding connects VCC_nu power supply 204 by Dnu isolating diode 203 (H bridge small-power module 1 is Dnu1, H bridge small-power module 2 is Dnu2); The isolation drive unit 302 that oppositely lower pipe switching tube 306 is corresponding 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).The output cathode 601 being connected with isolation inductance 602, a H bridge small-power module at the output cathode end 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.The drain electrode of pipe switching tube and the drain electrode of reverse upper pipe switching tube are connected to the positive pole 501 of DC power supply jointly forward, and oppositely the grid of lower pipe switching tube and the grid of pipe switching tube are downward connected to the negative pole 502 of DC power supply jointly.The input termination pu source driving pulse 101 of the isolation drive unit 102 of pipe switching tube 106 correspondence forward, the oppositely input termination nu source driving pulse 201 of the isolation drive unit 202 of upper pipe switching tube 206 correspondence, the oppositely input termination nd source driving pulse 301 of the isolation drive unit 302 of lower pipe switching tube 306 correspondence, the input termination pd source driving pulse 401 of the isolation drive unit 402 of pipe switching tube 406 correspondence downward.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 of this example is obtained 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 multiple H bridge small-power module, the positive pole of the isolation drive unit that the switching tube of pipe forward of each H bridge small-power module is corresponding is connected on power supply VCC_pu by Dpu isolating diode (H bridge small-power module 1 is Dpu1, H bridge small-power module 2 is Dpu2) jointly; The positive pole of the isolation drive unit that the switching tube of pipe downward of each H bridge small-power module is corresponding is connected on power supply VCC_pd by Dpd isolating diode (H bridge small-power module 1 is Dd1, H bridge small-power module 2 is Dpd2) jointly; The positive pole of the reverse above isolation drive unit that pipe switching tube is corresponding of each H bridge small-power module is connected on power supply VCC_nu by Dnu isolating diode (H bridge small-power module 1 is Dnu1, H bridge small-power module 2 is Dnu2) jointly; The positive pole of the reverse isolation drive unit that pipe switching tube is corresponding down 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 switching tube of pipe forward of each H bridge small-power module and the drain electrode of reverse upper pipe switching tube respectively, and the negative pole of DC power supply is connected with the switching tube of pipe downward of each H bridge small-power module and the source electrode of reverse lower pipe switching tube respectively; Thus obtain by the high-power positive and negative commutating pulse power supply of 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 powerful positive and negative commutating pulse power supply, concrete, isolation drive unit corresponding for the switching tube of same area in each H bridge small-power module is connected on a driving power altogether respectively by isolating diode.Further, isolation resistance is adopted to separate at the source electrode of each switching tube with between the earth connection of corresponding isolation drive unit; Isolation inductance is adopted each H bridge small-power module to be separated at the output cathode of each H bridge small-power module.The multimode parallel operation method of this example, parallel operation method and structure are all fairly simple, decrease the quantity of driving power, simultaneously, reduce the influencing each other of isolation drive unit, reduce switching tube on the impact on the power supply ground of isolation drive power supply, reduce 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 that institute's parallel operation obtains, the demand of the growing plating that high-power positive and negative commutating pulse power supply can be met.
Only as described above, be only the preferred embodiment of the application, certainly the scope of the application's enforcement can not be limited with this, namely generally according to equivalence change simple done by the content described in the application's claim and application specification and modification, all still belong within the application's claim scope.In addition, summary part and title are only used to the use of auxiliary patent document search, are not used for the interest field of restriction the application.
Claims (1)
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, downward pipe switching tube, amount on four switching tubes and connect an independently isolation drive unit respectively, the output of each isolation drive unit connects with the grid of corresponding switching tube through grid current-limiting resistance, and the negative pole of each isolation drive unit and the source electrode of corresponding switching tube connect ground connection altogether; The output cathode of H bridge small-power module described in several is in parallel, and the output negative pole of H bridge small-power module is in parallel, and the isolation drive unit that in each H bridge small-power module, the switching tube of same area is corresponding connects a driving power altogether; Namely the positive pole of the isolation drive unit that the switching tube of pipe forward of each H bridge small-power module is corresponding connects a driving power altogether, the positive pole of the isolation drive unit that the switching tube of pipe downward of each H bridge small-power module is corresponding connects a driving power altogether, the positive pole of the isolation drive unit that the oppositely upper pipe switching tube of each H bridge small-power module is corresponding connects a driving power altogether, and the positive pole of the isolation drive unit that the oppositely lower pipe switching tube of each H bridge small-power module is corresponding connects a driving power altogether;
At least one isolating diode is connect, for isolation drive unit and driving power being kept apart between each isolation drive unit and corresponding driving power; The positive pole of isolating diode connects driving power, and the negative pole of isolating diode connects isolation drive unit;
Connect at least one isolation resistance at the source electrode of each switching tube with between the earth connection of the negative pole of corresponding isolation drive unit, separate for the power supply by switching tube and isolation drive unit;
Connecing at least one isolation inductance at the output of each H bridge small-power module, for each H bridge small-power module being kept apart, reducing the 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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| CN103441673B true CN103441673B (en) | 2016-01-20 |
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| JP5196811B2 (en) * | 2007-03-06 | 2013-05-15 | ローム株式会社 | Motor drive device and electric apparatus using the same |
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| CN101202453A (en) * | 2006-12-15 | 2008-06-18 | 中兴通讯股份有限公司 | Method and system for controlling single-phase semi-bridge inversion parallel connection direct current circulating current |
| CN101335493A (en) * | 2008-07-24 | 2008-12-31 | 江苏大学 | H bridge driving device of automobile electric boosting steering motor |
| CN202268836U (en) * | 2011-08-19 | 2012-06-06 | 陕西群力电工有限责任公司 | High-power direct-current motor steering controller |
| CN202617008U (en) * | 2012-05-22 | 2012-12-19 | 许继集团有限公司 | Frequency modulation control circuit realized by using SG3525 chip |
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