CN201570992U - Plating power supply circuit capable of realizing various output voltage waveforms - Google Patents
Plating power supply circuit capable of realizing various output voltage waveforms Download PDFInfo
- Publication number
- CN201570992U CN201570992U CN2009202724873U CN200920272487U CN201570992U CN 201570992 U CN201570992 U CN 201570992U CN 2009202724873 U CN2009202724873 U CN 2009202724873U CN 200920272487 U CN200920272487 U CN 200920272487U CN 201570992 U CN201570992 U CN 201570992U
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- China
- Prior art keywords
- power supply
- circuit link
- buck
- voltage
- push
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Abstract
The utility model provides a plating power supply circuit capable of realizing various output voltage waveforms. An inductance, a first switch tube and an energy storing capacity are used as a Buck-Boost circuit link; the first switch tube, a second witch tube, the energy storing capacity and a transformer are used as a push-pull inversion circuit link; and the Buck-Boost circuit link and the push-pull inversion circuit link share the first switch tube to form a single phase lifting push-pull inversion circuit link, therefore lowering the cost, lowering the complexity for controlling the circuit and increasing the reliability of the circuit. Through modulating the Buck-Boost circuit link, the utility model widens the output voltage modulating scope of the inversion circuit and is suitable for the application occasions requiring wide output alternated current voltage scope. The output voltage waveform of the utility model comprises a positive high level, a positive low level and a negative level. The pulse width and the value of amplitude of the three levels can be modulated so as to satisfy the various voltage waveforms required by partial specific plating technique.
Description
Technical field
The utility model relates to the circuit of electroplating power supply and recommends the inverter technology field, is specifically related to a kind of electroplating power supply circuit of realizing the voltage in several modes waveform.
Background technology
The electroplating power supply circuit that extensively adopts is circuit such as DC circuit, square wave circuit mostly at present, and there is unicity in these existing circuit at present, and promptly wherein the output waveform of each type only is applicable to a kind of specific plating.But because the otherness of electroplating, at some special plating, it needs special voltage waveform, as: requirements such as positive and negative amplitude is asymmetric, staircase waveform.In order to satisfy the requirement of this special voltage waveform, the existing plating power supply is formed by multiple combination of circuits, and every kind of circuit produces single voltage waveform, then every kind of voltage waveform crisscross parallel is got required voltage waveform.Obviously, this electroplating power supply needs a plurality of circuit, and its complex structure, volume is big, cost is high.
The utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of electroplating power supply circuit of realizing the voltage in several modes waveform is provided.
A kind of electroplating power supply circuit of realizing the voltage in several modes waveform of the present utility model is that Buck-Boost circuit link and conventional single-phase push-pull inverter circuit link are integrated and got, the utility model is suitable for the electroplating power supply circuit of voltage in several modes waveform, can be by the modulation of Buck-Boost circuit link, make the voltage waveform of circuit output comprise positive high level, positive low level and three kinds of level of negative level, the pulse duration of these three kinds of level and amplitude are all adjustable.
Above-mentioned a kind of electroplating power supply circuit of realizing the voltage in several modes waveform, its physical circuit mainly comprises: with inductance L, switching tube Q
1With storage capacitor C as Buck-Boost circuit link; With switching tube Q
1And Q
2, storage capacitor C and transformer T
1As the push-pull inverter circuit link.Described Buck-Boost circuit link and push-pull inverter circuit link common switch pipe Q
1, constituting single-phase buck push-pull inverter circuit, entire circuit has only been used two switching tubes, has reduced cost, reduces the complexity of control circuit, improves the reliability of circuit.
The utility model improves the output voltage adjustable range of inverter circuit by the modulation of Buck-Boost circuit link, is applicable to the application scenario of wide output AC voltage scope.Output voltage waveforms of the present utility model is made up of positive high level, positive low level and three kinds of level of negative level, and the pulse duration of these three kinds of level and amplitude are all adjustable, can satisfy the needed multiple voltage waveform of part particular electrical depositing process.
Above-mentioned a kind of electroplating power supply circuit of realizing the voltage in several modes waveform, DC power supply V
SThe positive pole and the first switching tube Q
1Drain electrode connect; The first switching tube Q
1Source electrode be connected with an end of inductance L, then with transformer T
1Former limit winding W
11End of the same name connect; W
11The different name end be connected with the positive pole of capacitor C, then with transformer T
1Former limit winding W
12End of the same name connect; W
12Different name end and second switch pipe Q
2Drain electrode connect; The other end of inductance L, the negative pole of capacitor C, second switch pipe Q
2Source electrode and DC power supply V
SNegative pole connect.
Compared with prior art the utlity model has following advantage: the utility model is that Buck-Boost circuit link and conventional single-phase push-pull inverter circuit link are integrated and got, entire circuit has only been used two switching tubes, reduce cost, reduce the complexity of control circuit, improve the reliability of circuit.Extensively the electroplating power supply circuit that adopts is circuit such as DC circuit, square wave circuit mostly, and there is unicity in these existing circuit at present, and promptly wherein the output waveform of each type only is applicable to a kind of specific plating.And output voltage waveforms of the present utility model is made up of positive high level, positive low level and three kinds of level of negative level, and the pulse duration of these three kinds of level and amplitude are all adjustable, can satisfy the needed multiple voltage waveform of part particular electrical depositing process.
Description of drawings
Fig. 1 is a kind of instance graph of realizing the electroplating power supply circuit of voltage in several modes waveform in the utility model embodiment.
Fig. 2 a～Fig. 2 c is respectively that a kind of electroplating power supply circuit of voltage in several modes waveform of realizing shown in Figure 1 is at t
0～t
1, t
1～t
2And t
2The process chart of～T time period.
Fig. 3 is a kind of main voltage waveform of electroplating power supply circuit in two switch periods 2T of realizing the voltage in several modes waveform shown in Figure 1.
Embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present utility model is further described, but enforcement of the present utility model is not limited thereto.
With reference to figure 1, a kind of electroplating power supply circuit of voltage in several modes waveform of realizing described in the utility model is with inductance L, switching tube Q
1With storage capacitor C as Buck-Boost circuit link; With switching tube Q
1And Q
2, storage capacitor C and transformer T
1As the push-pull inverter circuit link.DC power supply V
SThe positive pole and the first switching tube Q
1Drain electrode connect; The first switching tube Q
1Source electrode be connected with an end of inductance L, then with transformer T
1Former limit winding W
11End of the same name connect; W
11The different name end be connected with the positive pole of capacitor C, then with transformer T
1Former limit winding W
12End of the same name connect; W
12Different name end and second switch pipe Q
2Drain electrode connect; The other end of inductance L, the negative pole of capacitor C, second switch pipe Q
2Source electrode and DC power supply V
SNegative pole connect.
Fig. 2 has provided circuit working process of the present utility model, and Fig. 3 has provided the voltage waveform of following each time period.In a switch periods T, the course of work of the present utility model is as follows:
Stage 1 (t
0～t
1), as Fig. 2 a: the first switching tube Q
1With second switch pipe Q
2Conducting simultaneously.DC power supply V
SPass through Q on the one hand
1To the inductance L charging, pass through Q on the other hand
1With transformer T
1Former limit winding W
11Storage capacitor C is charged; Q
2Conducting, capacitor C is given transformer T
1Former limit winding W
12Power supply, W
12Terminal voltage and the terminal voltage V of capacitor C
CIdentical, W
11By clamper is capacitance terminal voltage V
C, transformer T
1Secondary winding W
2Terminal voltage equal capacitance terminal voltage V
C
Stages 2 (t
1～t
2), as Fig. 2 b: the first switching tube Q
1Conducting, second switch pipe Q
2Turn-off DC power supply V
SBy switching tube Q
1To the inductance L charging, give transformer T by capacitor C on the other hand on the one hand
1Former limit winding W
11Transmit energy, the secondary voltage V of transformer
OEqual (V
S-V
C).
Stages 3 (t
2～T), as Fig. 2 c: the first switching tube Q
1With second switch pipe Q
2Turn-off simultaneously, inductance L and capacitor C are given the former limit winding W of T1 simultaneously
11Transmit energy, the secondary voltage amplitude of transformer equals the back electromotive force V of inductance L
LAdd capacitance terminal voltage V
C, i.e. V
O=-(V
L+ V
C).
The utility model makes that by inductance L the alternating voltage peak of output is controlled, overcome the lower shortcoming of conventional push-pull inverter circuit output voltage peak value, and entire circuit only uses two switching tubes, reduced cost, reduce the complexity of control circuit, improve the reliability of circuit.The utility model is by the control to switching tube, and output voltage waveforms is made up of positive high level, positive low level and three kinds of level of negative level.In the time of the conducting simultaneously of two switching tubes, output voltage waveforms is positive high level; As switching tube Q
1Conducting, Q
2When turn-offing, output voltage waveforms is positive low level, and when two switching tubes turn-offed simultaneously, output voltage waveforms was a negative level.By to two switching tube adjustings of ON time separately in the circuit, the pulse duration of these three kinds of level and amplitude are all adjustable, can satisfy the needed multiple voltage waveform of part particular electrical depositing process.
Claims (5)
1. the electroplating power supply circuit that can realize the voltage in several modes waveform is characterized in that comprising Buck-Boost circuit link and push-pull inverter circuit link, and described push-pull inverter circuit link includes the first switching tube (Q
1) and second switch pipe (Q
2); The shared first switching tube (Q of described push-pull inverter circuit link and Buck-Boost circuit link
1), constitute single-phase buck push-pull inverter circuit.
2. a kind of electroplating power supply circuit of realizing the voltage in several modes waveform according to claim 1 is characterized in that described push-pull inverter circuit link is by the first switching tube (Q
1), second switch pipe (Q
2), inductance (L), storage capacitor (C) and transformer (T
1) constitute; Described Buck-Boost circuit link is by inductance (L), the first switching tube (Q
1), storage capacitor (C) and transformer (T
1) former limit winding (W
11) constitute the shared first switching tube (Q of push-pull inverter circuit link and Buck-Boost circuit link
1).
3. a kind of electroplating power supply circuit of realizing the voltage in several modes waveform according to claim 2 is characterized in that the first switching tube (Q
1) drain electrode and DC power supply (V
S) the anodal connection; First switching tube (the Q
1) source electrode simultaneously with an end and the transformer (T of inductance (L)
1) former limit winding (W
11) end of the same name connect; Former limit winding (W
11) the different name end and the positive pole and the transformer (T of storage capacitor (C)
1) former limit winding (W
12) end of the same name connect; Former limit winding (W
12) different name end and second switch pipe (Q
2) drain electrode connect; The negative pole of the other end of inductance (L), storage capacitor (C), second switch pipe (Q
2) source electrode all with DC power supply (V
S) negative pole connect.
4. a kind of electroplating power supply circuit of realizing the voltage in several modes waveform according to claim 3 is characterized in that push-pull inverter circuit link and Buck-Boost circuit link common transformer (T
1) former limit winding (W
11).
5. according to each described a kind of electroplating power supply circuit of realizing the voltage in several modes waveform of claim 1～4, it is characterized in that transformer (T
1) secondary winding (W
2) terminal voltage to be output voltage waveforms be made up of positive high level, positive low level and three kinds of level of negative level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202724873U CN201570992U (en) | 2009-11-27 | 2009-11-27 | Plating power supply circuit capable of realizing various output voltage waveforms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202724873U CN201570992U (en) | 2009-11-27 | 2009-11-27 | Plating power supply circuit capable of realizing various output voltage waveforms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201570992U true CN201570992U (en) | 2010-09-01 |
Family
ID=42663293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202724873U Expired - Lifetime CN201570992U (en) | 2009-11-27 | 2009-11-27 | Plating power supply circuit capable of realizing various output voltage waveforms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201570992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248263A (en) * | 2012-02-09 | 2013-08-14 | 中兴通讯股份有限公司 | PWM DC pulse circuit, coating circuit and film coating method |
-
2009
- 2009-11-27 CN CN2009202724873U patent/CN201570992U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248263A (en) * | 2012-02-09 | 2013-08-14 | 中兴通讯股份有限公司 | PWM DC pulse circuit, coating circuit and film coating method |
| WO2013117054A1 (en) * | 2012-02-09 | 2013-08-15 | 中兴通讯股份有限公司 | Pwm dc pulse circuit and coating circuit |
| CN103248263B (en) * | 2012-02-09 | 2017-02-15 | 中兴通讯股份有限公司 | PWM DC pulse circuit, coating circuit and film coating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100901 Effective date of abandoning: 20091127 |