CN1317814C - Control power supply device for electroplating - Google Patents
Control power supply device for electroplating Download PDFInfo
- Publication number
- CN1317814C CN1317814C CNB2003101198581A CN200310119858A CN1317814C CN 1317814 C CN1317814 C CN 1317814C CN B2003101198581 A CNB2003101198581 A CN B2003101198581A CN 200310119858 A CN200310119858 A CN 200310119858A CN 1317814 C CN1317814 C CN 1317814C
- Authority
- CN
- China
- Prior art keywords
- thyristor
- arm
- switch arm
- switch
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009713 electroplating Methods 0.000 title claims description 25
- 239000003990 capacitor Substances 0.000 claims abstract description 18
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 230000001939 inductive effect Effects 0.000 claims abstract description 11
- 238000007747 plating Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000009499 grossing Methods 0.000 abstract description 2
- 238000009877 rendering Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 239000008186 active pharmaceutical agent Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Abstract
First, second and third switching arms are connected in parallel with a smoothing capacitor. Each switching arm includes a series connection of an upper arm and a lower arm, and has an output node at the junction of the upper and lower arms. A voltage waveform generated by rendering a switching device in upper or lower arm conductive and nonconductive is applied to a load, with the polarity of the voltage waveform alternated. Inductive coupling means are coupled to the output nodes of the first and second switching arms.
Description
Technical field
The present invention relates at DC/DC converter high speed ground polarity inversion voltage waveform, the plating of supply load is with controlling supply unit.
Background technology
Open in the flat 10-42563 communique the Japanese patent gazette spy and to disclose following polarity transformation circuits.The anode of first hf rectifier is connected with an end of the secondary coil of high frequency transformer, is being connected first thyristor between the negative electrode of this hf rectifier and first face terminals.On the other hand, the negative electrode of second hf rectifier is connected with the other end of the secondary coil of high frequency transformer, is being connected second thyristor between the anode of this hf rectifier and first face terminals.The secondary coil of high frequency transformer has centre tap, and second face terminals is connected with this centre tap.Connect load between first and second face terminals.First and second thyristors alternatively are converted to connection, turn-off according to control signal.
And, the possibility that this polarity transformation circuits is used in the electric source for electroplating of the big electric current of supply load is arranged.Under this situation, for example, in the conversion of second thyristor, because when the shutoff of this thyristor, the electric current of this thyristor is flow through in blocking, be connected reactor so must utilize between second face terminals and second thyristor, make and when the shutoff of second thyristor, also flow electric current to second face terminals from second thyristor.
Fig. 6 illustrates electric source for electroplating, and this electric source for electroplating will add 2 polarity transformation circuitses of above-mentioned reactor as the first and second power supply E1, E2, be arranged on above-mentioned spy and open in the circuit shown in the flat 10-42563 communique.
Among Fig. 6,,, supply in each rectification circuit that constitutes by diode D1～D4 and D5～D8, carry out rectification through transformer T1, T1 from the AC signal of AC input terminal 1,2.Signal after the rectification is level and smooth in each smoothing filter that is made of smmothing capacitor C1, C2 and reactor L1, L2.By rectification and the direct current signal that smoothly obtains, be transformed into impulse waveform by switch element S1, S2 and S3, S4, supply with to the load shown in Fig. 5.Load comprises first electroplated electrode 31, second electroplated electrode 32, by electronplate 33.By electronplate 33 is the two sides and the through hole that is connected this two sides of printed circuit board (PCB).First face terminals 5 of DC power supply E1 is connected with first electroplated electrode 31, and second face terminals 6 is connected with the surface that by the part of electronplate 33 is circuit board.First face terminals 50 of DC power supply E2 is connected with second electroplated electrode 32, and second face terminals 60 is connected with the back side that by the part of electronplate 33 is printed circuit board (PCB).The electroplating current waveform converts the pulse current and the short reciprocal pulse current of time width of the long positive direction of time width to as shown in Figure 7 repeatedly.Because by electronplate 33 is the two sides and the through hole of printed circuit board (PCB), so carry out the counter-rotating of polarity in order to electroplate them.
Among Fig. 5, undertaken being undertaken by the plating of the rear side of the printed circuit board (PCB) of electronplate 33 by second source E2 by the plating of the face side of the printed circuit board (PCB) of electronplate 33 by the first power supply E1.The first and second power supply E1, E2 are at electroplated electrode the 31, the 32nd, and positive polarity is under the state of negative polarity by electronplate 33, electroplate to being supplied with the long burst electric current by electronplate 33.Then, polarity moment of the first and second power supply E1, E2 is changed, to supplied with the only opposite direction pulse of the big electric current of short time by electronplate 33, from being electroplated by electronplate 33 dissolvings.One example of the current value of positive pulse and negative pulse and service time is, 750 amperes of the negative pulses of 250 amperes of 10 milliseconds positive pulses and 1 millisecond.It is supplied with repeatedly by electronplate 33.In order to obtain, the service time and the current value of its positive and negative pulse is set at optimum value by the quality of the precision of electronplate 33.
Among Fig. 6, be accumulated in smoothly when switch element S1, the S2 of transformed load sense of current connect at high speed,, just discharge whenever this switch element S1 and S2 become shutoff with the energy among the reactor L1.Withstand voltage surge voltage above switch element S1, S2 takes place in its result.About switch element S3, S4 too.Therefore, with each switch element S1～S4 the surge voltage absorbing circuit that the series circuit by capacitor C3, C4, C5, C6 and resistor R, R, R, R constitutes (below be called buffer circuit) is being set in parallel.
But, a plurality of thyristors of in a packaging body, packing into, making has under the situation of semiconductor module of DC/DC inverter functionality, in each thyristor in module the capacitor that a buffer circuit is used is set, and just becomes the obstacle when carrying out the semiconductor module blocking.
Summary of the invention
The objective of the invention is to, a kind of electric source for electroplating that utilizes the component count that reduces buffer circuit to realize miniaturization is provided.
A kind of plating of the present invention comprises: smmothing capacitor with the control supply unit; First to the 3rd switch arm, this first to the 3rd switch arm is in parallel with this smmothing capacitor, has switch element separately, first to the 3rd switch arm is the body that is connected in series of upper arm and underarm, the tie point of last underarm becomes output respectively, the switch element that comprises is separately connected, the voltage waveform that turn-offs and form, polarity is switched the ground supply load freely, this electric source for electroplating has inductive coupling apparatus, this inductive coupling apparatus is connected to the output of first switch arm and second switch arm, from first switch arm during to the transmission of power of second switch arm, the switch element of second switch arm becomes the moment of connection, perhaps, from the second switch arm during to the transmission of power of first switch arm, the switch element of first switch arm becomes the moment of connection, the current transfer that this inductive coupling apparatus can sharply rise, this inductive coupling apparatus has the primary coil and the secondary coil of shared magnetic core, first and second recirculation diodes, the output with first switch arm around the head position of above-mentioned primary coil is connected, the anode of first recirculation diode is connected around portion with above-mentioned primary coil, the anode of second recirculation diode links to each other with the negative electrode of first recirculation diode, the negative electrode of second recirculation diode is connected around the head position with above-mentioned secondary wire coil, and the output with the second switch arm around the head position of above-mentioned secondary coil is connected.
Inductive coupling apparatus can be the device with the primary coil of shared magnetic core and secondary coil, first and second recirculation diodes.Under this situation, the output with first switch arm around the head position of above-mentioned primary coil is connected, and the anode of first recirculation diode is connected around portion with above-mentioned primary coil.The anode of second recirculation diode is connected with the negative electrode of first recirculation diode, and the negative electrode of second recirculation diode is connected around the head position with above-mentioned secondary coil.The output with the second switch arm around the head position of above-mentioned secondary coil is connected.Become the moment of connection at the switch element of second switch arm, formation is from the output of second switch arm, by first and second recirculation diodes, turn back to the circulation loop of winding energy of primary coil of the output of first switch arm, the winding energy that the switch element of first switch arm becomes the moment of shutoff discharges, shift to secondary coil from above-mentioned primary coil, promote the switch motion of the switch element of second switch arm.
In addition, similarly constitute, become the moment of connection at the switch element of first switch arm, formation is from the output of first switch arm, by first and second recirculation diodes, turn back to the circulation loop of winding energy of primary coil of the output of second switch arm, the winding energy that the switch element of second switch arm becomes the moment of shutoff discharges, shift to primary coil from above-mentioned secondary coil, promote the switch motion of the switch element of first switch arm.
The plating that two groups of aforesaid ways also can be set is with controlling supply unit.Under this situation, the smmothing capacitor of these two electric source for electroplating is in parallel with shared rectification circuit, and the switch element of the correspondence of each switch arm of these two electric source for electroplating is connected synchronously, turn-offed.
In addition, the output of the 3rd switch arm of electric source for electroplating that also can a side is connected with first electroplated electrode, the output polarity of first and second switch arms of an above-mentioned side's electric source for electroplating is freely switched, with be connected by a face of electronplate, the output of the 3rd switch arm of the opposing party's electric source for electroplating is connected with second electroplated electrode, the output polarity of first and second switch arms of above-mentioned the opposing party's electric source for electroplating is freely switched, be connected with above-mentioned another face by electronplate.
Description of drawings
Fig. 1 is the circuit diagram of major part of the supply unit of first execution mode of the present invention.
Fig. 2 is all circuit diagrams of the supply unit of first execution mode of the present invention.
Fig. 3 is the figure of gate signal that each switch element of the supply unit of supplying with Fig. 1 is shown.
Fig. 4 is the output waveform figure of the supply unit of Fig. 1.
Fig. 5 is the key diagram that polarity is switched galvanoplastic.
Fig. 6 is the circuit diagram of existing polar switching electric source for electroplating.
Fig. 7 is the output waveform figure of the supply unit of Fig. 6.
Embodiment
Below, the electric source for electroplating of first execution mode of the present invention is described.Fig. 1 is the circuit diagram of major part of the supply unit of first execution mode of the present invention, and Fig. 2 is all circuit diagrams of the supply unit of first execution mode of the present invention.DC/DC converter 10 shown in Fig. 2 is equivalent to the first power supply E1 shown in Fig. 5, and DC/DC converter 20 is equivalent to second source E2.
The first face terminals 5a of DC/DC converter 10 is connected with electrode 31 with the plating of Fig. 5, the second face terminals 6a be connected by the surface of the printed circuit board (PCB) of electronplate 33.The first face terminals 50a of DC/DC converter 20 is connected with electrode 32 with electroplating, the second face terminals 60a be connected by the back side of the printed circuit board (PCB) of electronplate 33.
As can be seen from Figure 2, DC/DC converter the 10, the 20th, identical structure.Thereby, at length describe about converter 10, in converter 20, the identical symbol of mark on the parts identical with converter 10 omits its explanation.But the symbol of first face terminals is 50a, and the symbol of second face terminals is 60a.
Among Fig. 1, in DC/DC converter 10, the first arm A1, the second arm A2, these 3 switch arms of the 3rd arm A3 are being set between lead-out terminal P, the N of rectification circuit 3 shown in figure 2.
The first arm A1 is that upward side arm is that the first switch element Q1 and following side arm are the body that is connected in series of the first diode D1.Both tie points are the output X1 of the first arm.The first switch element Q1 for example is FET, and its drain electrode is connected with lead-out terminal P side, and source electrode is connected with output X1.The negative electrode of the first diode D1 is connected with output X1, and anode is connected with lead-out terminal N.
Second arm is that upward side arm is the concatermer that the second diode D2 and following side arm are second switch element Q2.Both tie points are the output X2 of second arm.The negative electrode of the second diode D2 is connected with lead-out terminal P, and anode is connected with output X2.Second switch element Q2 for example also is FET, and its drain electrode is connected with output X2, and source electrode is connected with lead-out terminal N.
The 3rd arm is that upward side arm is that the 3rd switch element Q3 and following side arm are the body that is connected in series of the 4th switch element Q4.Both tie point X3 are the output X3 of the 3rd arm.The 3rd switch element Q3 for example is IGBT, and its collector electrode is connected with lead-out terminal P side, and emitter is connected with output X3.The 4th switch element Q4 also is IGBT, and its collector electrode is connected with output X3, and emitter is connected with lead-out terminal N.
Smmothing capacitor 4 in first～the 3rd arm A1～A3 parallel connection.
Never illustrated drive circuit is to the door supply high frequency gate signal as shown in Figure 3 of each switch element Q1, Q2 of first, second arm, and according to the supply of this gate signal, switch element Q1, Q2 high frequency ground are connected, turn-offed.Supply with low frequency gate signal from the above-mentioned drive circuit shown in Fig. 3 to the door of each switch element Q3, Q4 of the 3rd arm, these switch elements Q3, Q4 are according to these gate signals, and low frequency ground turns on and off.
Have again, as can be seen from Figure 3, when the first switch element Q1 being carried out repeatedly the supply of gate signal and stopping, the 4th switch element Q4 is supplied with gate signal continuously.At this moment, the second and the 3rd switch element Q2, Q3 are not supplied with gate signal.Then, stop supply simultaneously to the gate signal of the first and the 4th switch element Q1, Q4, after this state continuance certain hour (promptly, the time that whole switch element Q1～Q4 is not supplied with gate signal has continued after the certain hour), when second switch element Q2 being carried out repeatedly the supply of gate signal and stopping, the 3rd switch element Q3 is supplied with gate signal continuously.During this, switch element Q1, Q4 are not supplied with gate signal.Below, carry out the supply of such gate signal repeatedly.
Based on this gate signal, utilize the switch of switch element Q1～Q4, by the first and second face terminals 5a, 6a, supplied with conversion to load and come the voltage waveform of the direct voltage of self-rectifying circuit 3.
That is, the output X1 of the first arm A1 is connected with the second face terminals 6a through the first recirculation diode DP of primary coil 8 and series connection with it.In the first recirculation diode DP, its anode is connected with primary coil 8, and negative electrode is connected with the second face terminals 6a.The output X2 of the second arm A2 is connected with the second face terminals 6a by the second recirculation diode DS of secondary coil 9 and series connection with it.In the second recirculation diode Ds, its anode is connected with the second face terminals 6a, and negative electrode is connected with secondary coil 9.The output X3 of the 3rd arm is connected with the first face terminals 5a.
Form inductive coupling apparatus 7 by the first and second recirculation diode DP, DS and primary coil 8, secondary coil 9.Primary coil 8 and secondary coil 9 have shared magnetic core.Then, be wound on the same magnetic core to primary coil 8 and secondary coil 9 mutual reversed polarity.That is, with the primary coil 8 of Fig. 1, the round dot side shown in the secondary coil 9 as around head, coiling primary coil 8 and secondary coil 9 on same magnetic core.
Shown in the symbol t1 among Fig. 3, connect at the first switch element Q1, the 4th switch element Q4 connects, second switch element Q2 turn-offs, in the time period that the 3rd switch element Q3 turn-offs, flow electric current to the first switch element Q1, primary coil 8, the first recirculation diode DP, the second face terminals 6a, load, the first face terminals 5a, the 4th switch element Q4 from lead-out terminal P.That is, supply with negative current to load.At this moment, primary coil 8 is as inductor effect, cumlative energy.
From this state, shown in symbol t2, turn-off at the first switch element Q1, the 4th switch element Q4 connects, in the time period that the second and the 3rd switch element Q2, Q3 turn-off, based on the energy that is accumulated in the primary coil 8, to the 4th switch element Q4, the first diode D1, primary coil 8, the first recirculation diode DP, load flow electric current.At this moment, to the load flow negative current.Below, carry out above-mentioned work repeatedly, supply with negative current to load.
Soon, shown in symbol t3, becoming the second and the 3rd switch element Q2, Q3 is off state, and the first switch element Q1 turn-offs the time period that the 4th switch element Q4 turn-offs.In this time period, be accumulated in the release of the energy in the primary coil 8, move energy from primary coil 8 to 9 moments of secondary coil, output X2 produces positive voltage.Like this, flow electric current, suppress the generation of surge voltage to diode D2, smmothing capacitor 4, diode D1.
In addition, shown in symbol T4, keep the state of shutoff at the first and the 4th switch element Q1, Q4, the second and the 3rd switch element Q2, Q3 have become the moment of connecting, the voltage that produces on secondary coil 9 (this is the voltage of polarity that makes the direction of switch element Q2 conducting) adds the voltage of smmothing capacitor 4, supplies among the second switch element Q2.Like this, the electric current that in second switch element Q2, is sharply risen.
In the existing supply unit shown in Figure 6, become the moment of turn-offing, produced rapid surge voltage at first～the 4th switch element S1～S4.Because this surge voltage one is supplied with switch element S1～S4, the possibility of destroying switch element S1～S4 is just arranged, so on each switch element S1～S4 buffer circuit is being set.But, in the supply unit shown in Figure 1, when smoothed capacitor 4 absorbs, be used in the rapid rising of switch element Q2 by the voltage of primary coil 8 induction.Therefore, just do not need buffer circuit.
Shown in symbol t4, connect at the second and the 3rd switch element Q2, Q3, in the state that the first and the 4th switch element Q1, Q4 turn-off, flow electric current to smmothing capacitor 4, the 3rd switch element Q3, the first face terminals 5a, load, the second face terminals 6a, the second recirculation diode DS, secondary coil 9, second switch element Q2.Its result, secondary coil 9 is as the reactor effect, cumlative energy in secondary coil 9.At this moment, to the load flow positive current.
Shown in symbol t5, Q2 becomes shutoff at the second switch element, the 3rd switch element Q3 keeps connection, the first, the 4th switch element Q1, Q4 kept in the time period of shutoff, flowed electric current to the second diode D2, the 3rd switch element Q3, the first face terminals 5a, load, the second face terminals 6a.Like this, to the load flow positive current.Below similarly supply with positive current to load.
Soon, shown in symbol t6, becoming the first and the 4th switch element Q1, Q4 is off state, and second switch element Q2 becomes shutoff, and the 3rd switch element Q3 becomes the time period of shutoff.In this time period, produce the release be accumulated in the energy in the secondary coil 9, move energy from secondary coil 9 to 8 moments of primary coil, the anode of recirculation diode DP produces positive voltage.Like this, flow electric current, suppress the generation of surge voltage to recirculation diode DS, secondary reactor 9, the second diode D2, smmothing capacitor 4, the first diode D1.
Then, shown in symbol T6, keep the state of shutoff at the second and the 3rd switch element, the first and the 4th switch element has become the moment of connecting, based on the energy that moves to primary coil 8, and the voltage (this is the voltage that makes the direction of switch element Q4 conducting) that on primary coil 8, produces, add the voltage of smmothing capacitor 4, supply among the switch element Q4, in the 4th switch element Q4, the electric current that is sharply risen.Below, each switch element Q1～Q4 and time period t 1 are similarly carried out work later.
Resemble in this wise, in the supply unit shown in Figure 1, when smoothed capacitor 4 absorbs, be used in the rapid rising of switch element Q4 by the voltage of primary coil 9 induction.Therefore, just do not need buffer circuit.
The waveform of output current is set each gate signal as shown in Figure 4, and making becomes the positive long-time and negative short time of pulse duration repeatedly.In an example, supply with 750 amperes of the negative pulses of 10 milliseconds 250 amperes of positive pulses and 1 millisecond repeatedly.Because the value that makes negative pulse greater than positive pulse, takes place so the first and second switch element Q1, Q2 press same frequency, but the gate signal that the duty ratio of the gate signal that first switch element is used is used greater than second switch element Q2.In order to obtain, optimum value will be set at so positive and negative conduction time by the electroplating quality of the precision of electronplate.
From drive division, the switch element Q1～Q4 of the switch arm of to the correspondence of the first and second DC/ DC converters 10,20 supplies with gate signal synchronously.Its result, the output waveform of two DC/ DC converters 10,20 is synchronous impulse waveforms, for being the surface and the back side of printed circuit board (PCB) by electronplate 33, owing to press the identical current waveform supplying electric current of time shaft, between 2 electroplated electrodes 31,32, do not flow such improper of electric current so do not produce.
In the existing supply unit shown in Figure 6, by 2 insulating transformer T1, T2 insulation 2 power circuit E1, E2.But, in this supply unit, as shown in Figure 2, on a transformer T with the alternating voltage transformation for the regulation voltage, be divided into 2 converters 10,20 from a rectification circuit 3, but because the output waveform of two converters 10,20 synchronously forms as described above, between converter 10,20, do not flow the improper of circulating current moment, and can cut down the quantity of the such weight member of transformer and reactor so in what kind of, do not produce.
Claims (5)
1. a plating comprises with controlling supply unit:
Smmothing capacitor;
First to the 3rd switch arm, this first to the 3rd switch arm is in parallel with this smmothing capacitor, has switch element separately, first to the 3rd switch arm is the body that is connected in series of upper arm and underarm, the tie point of last underarm becomes output respectively, with the voltage waveform that the switch element that comprises is separately connected, turn-offed and forms, polarity is switched the ground supply load freely
This electric source for electroplating has inductive coupling apparatus, this inductive coupling apparatus is connected to the output of first switch arm and second switch arm, becoming the moment of connection from first switch arm switch element during to the transmission of power of second switch arm, the second switch arm, perhaps, becoming the moment of connection from second switch arm switch element during to the transmission of power of first switch arm, first switch arm, the current transfer that this inductive coupling apparatus can sharply rise
This inductive coupling apparatus has the primary coil of shared magnetic core and secondary coil, first and second recirculation diodes, the output with first switch arm around the head position of above-mentioned primary coil is connected, the anode of first recirculation diode is connected around portion with above-mentioned primary coil, the anode of second recirculation diode links to each other with the negative electrode of first recirculation diode, the negative electrode of second recirculation diode is connected around the head position with above-mentioned secondary wire coil, and the output with the second switch arm around the head position of above-mentioned secondary coil is connected.
2. electric source for electroplating as claimed in claim 1 is characterized in that,
First thyristor is set on side arm on first switch arm, on the following side arm of second switch arm, second thyristor is set, the 3rd thyristor is set on side arm on the 3rd switch arm, on the following side arm of the 3rd switch arm, the 4th thyristor is set, between the tie point of the anode of the negative electrode of the output of the 3rd switch arm and first recirculation diode and second recirculation diode, be connected load
In the shutoff of the second and the 3rd thyristor, when the 4th thyristor is connected, first thyristor is connected, is turn-offed, then first to fourth thyristor turn-offs, then the 3rd thyristor is connected again, and second thyristor is connected, turn-offed simultaneously.
3. electric source for electroplating as claimed in claim 1 is characterized in that,
First thyristor is set on side arm on first switch arm, on the following side arm of second switch arm, second thyristor is set, the 3rd thyristor is set on side arm on the 3rd switch arm, on the following side arm of the 3rd switch arm, the 4th thyristor is set, between the tie point of the anode of the negative electrode of the output of the 3rd switch arm and first recirculation diode and second recirculation diode, be connected load
In the shutoff of the first and the 4th thyristor, when the 3rd thyristor is connected, second thyristor is connected, is turn-offed, then first to fourth thyristor turn-offs, then the 4th thyristor is connected again, and first thyristor is connected, turn-offed simultaneously.
4. plating power supply, two claims 2 or 3 described plating are set with controlling supply unit, the above-mentioned smmothing capacitor of these two electric source for electroplating is in parallel with shared rectification circuit, these two plating are connected synchronously with first thyristor of control supply unit, turn-off, these two plating are connected synchronously with second thyristor of control power supply, turn-off, these two plating are connected synchronously with the 3rd thyristor of control power supply, turn-off, these two plating are connected synchronously with the 4th thyristor of control power supply, turn-off.
5. plating power supply as claimed in claim 4 is characterized in that,
The output of the 3rd switch arm of one side's electric source for electroplating is connected with first electroplated electrode, the output polarity of first and second switch arms of an above-mentioned side's electric source for electroplating is switched freely, with be connected by a face of electronplate, the output of the 3rd switch arm of the opposing party's electric source for electroplating is connected with second electroplated electrode, the output polarity of first and second switch arms of above-mentioned the opposing party's electric source for electroplating is switched freely, be connected with above-mentioned another face by electronplate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP296056/2002 | 2002-10-09 | ||
| JP2002296056A JP2004135404A (en) | 2002-10-09 | 2002-10-09 | Control power supply unit for plating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1497830A CN1497830A (en) | 2004-05-19 |
| CN1317814C true CN1317814C (en) | 2007-05-23 |
Family
ID=32286140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101198581A Expired - Lifetime CN1317814C (en) | 2002-10-09 | 2003-10-09 | Control power supply device for electroplating |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2004135404A (en) |
| KR (1) | KR101004900B1 (en) |
| CN (1) | CN1317814C (en) |
| TW (1) | TWI231089B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4925339B2 (en) * | 2007-12-14 | 2012-04-25 | 株式会社中央製作所 | High-speed inversion pulse power supply |
| KR100985566B1 (en) * | 2008-08-05 | 2010-10-05 | 삼성전기주식회사 | Auxiliary circuit for satisfying hold-up time; and a phase transition full bridge converter and asymmetric half bridge converter having the same |
| JP5927635B2 (en) * | 2013-12-02 | 2016-06-01 | 株式会社中央製作所 | High-speed inversion pulse power supply |
| CN114337207B (en) * | 2021-12-16 | 2023-10-31 | 天津城建大学 | Topology of multiphase stacked interleaved buck converter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1198837A (en) * | 1997-09-24 | 1999-04-09 | Sansha Electric Mfg Co Ltd | Dc power source apparatus |
| JP2002235189A (en) * | 2001-02-05 | 2002-08-23 | Sansha Electric Mfg Co Ltd | Power unit for feeding plating current |
-
2002
- 2002-10-09 JP JP2002296056A patent/JP2004135404A/en active Pending
-
2003
- 2003-10-07 TW TW092127727A patent/TWI231089B/en not_active IP Right Cessation
- 2003-10-08 KR KR1020030069791A patent/KR101004900B1/en active IP Right Grant
- 2003-10-09 CN CNB2003101198581A patent/CN1317814C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1198837A (en) * | 1997-09-24 | 1999-04-09 | Sansha Electric Mfg Co Ltd | Dc power source apparatus |
| JP2002235189A (en) * | 2001-02-05 | 2002-08-23 | Sansha Electric Mfg Co Ltd | Power unit for feeding plating current |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1497830A (en) | 2004-05-19 |
| TWI231089B (en) | 2005-04-11 |
| TW200410479A (en) | 2004-06-16 |
| KR101004900B1 (en) | 2010-12-28 |
| JP2004135404A (en) | 2004-04-30 |
| KR20040032760A (en) | 2004-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9520792B2 (en) | Staggered parallel three-level DC/DC converter and AC/DC converter | |
| US7385833B2 (en) | Snubber circuit for a power converter | |
| CN111130353B (en) | Switching power supply device | |
| US7130203B2 (en) | Switching power supply with a snubber circuit | |
| CN1182649C (en) | Self-driven synchronous reftification circuit for low output voltage DC-DC converters | |
| CN1552120A (en) | Power converter having stable dual outputs | |
| EP1159781A1 (en) | General self-driven synchronous rectification scheme for synchronous rectifiers having a floating gate | |
| CN1078065C (en) | Electric dust collector | |
| WO2000069057A1 (en) | Single-ended forward converter circuit with quasi-optimal resetting for synchronous rectification | |
| US6185111B1 (en) | Switching power supply apparatus | |
| CN111682774A (en) | Single-stage isolation type bidirectional DC converter | |
| CN1384591A (en) | Resonant reset dual-switch forward DC-to-DC converter | |
| CN1317814C (en) | Control power supply device for electroplating | |
| CN208158436U (en) | A kind of synchronous rectification inverse-excitation type DC-DC power conversion equipment | |
| CN212381122U (en) | Single-stage isolation type bidirectional DC converter | |
| CN1215638C (en) | Dual positive excitated DC-DC power transfer device with soft switch in three electrical levels | |
| CN1692545A (en) | Power supply circuit and electronic device | |
| CN1531182A (en) | Power supply apparatus | |
| CN1379534A (en) | Synchronous rectifying drive circuit and method of DC/DC converter | |
| CN112234810B (en) | Novel SiC MOSFET oscillation suppression circuit applied to half-bridge circuit | |
| JP2019531047A (en) | DC voltage converter and method of operating DC voltage converter | |
| CN210724554U (en) | Clamping type boosting power conversion circuit structure | |
| CN110118903B (en) | Equivalent full-power test circuit for direct-current port of power electronic transformer and control method | |
| CN100420139C (en) | Electroplate supply unit | |
| CN113067478A (en) | Power supply device and power module driving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070523 |