CN2640120Y - Silicon controlled period commutating pulse power - Google Patents
Silicon controlled period commutating pulse power Download PDFInfo
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- CN2640120Y CN2640120Y CN 03207640 CN03207640U CN2640120Y CN 2640120 Y CN2640120 Y CN 2640120Y CN 03207640 CN03207640 CN 03207640 CN 03207640 U CN03207640 U CN 03207640U CN 2640120 Y CN2640120 Y CN 2640120Y
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Abstract
The utility model relates to a silicon controlled periodic commutating pulse power supply, which is characterized in that the two ends of the power supply are in series connected with silicon controlled thyristors (SCR1, SCR2), the output end of SCR1 is connected with the input end of SCR2, one end of RL load is connected with the connection point of the silicon controlled thyristors (SCR1, SCR2), and the other end of RL load is connected with the intermediate tap of transformer B2; the control grid of SCR1 is connected with a positive supply breakover controlled circuit and the control grid of SCR2 is connected with a negative supply breakover controlled circuit. The control that the commutation cycle is adjustable, the PN ratio or the duty ratio is adjustable is realized by controlling the turn-on time of the PN voltage breakover controlled circuit. The utility model has the advantages that the commutation cycle is adjustable, the PN ratio or the duty ratio is adjustable, besides, the utility model can be used as a unidirectional pulse supply and also can be used as a direct current supply, can be solely used as a commutating supply, also can be used as a commutating and pulse dual-purpose supply or a commutating, pulse and direct current triple-purpose supply.
Description
Technical field
The utility model relates to a kind of controllable silicon reverse pulse power supply.
Background technology
The commutation power supply is widely used at aspects such as electroplating electrolysis and quick charge, utilizes the silver-plated wear and corrosion behavior of silvering that makes of commutation power supply to improve greatly, thereby can save a large amount of silver anodes, and the depletion of additive amount also significantly reduces, and economic worth is very considerable.The application that current commutation is electroplated is not limited only to precious metal electroplating, but plating iron, nickel plating, alumilite process etc., and the report that always requires the very little chrome-plated process of power supply ripple coefficient all to have in the past to adopt the commutation power supply to electroplate.From electroplating theory, the commutating pulse power supply helps improving the cathodic polarization ability, make that the coating crystallization is careful to be evenly distributed, also favourablely prevent anodic passivity and prevent that coating from oozing hydrogen and influencing adhesion etc., in addition, pulse current continuous one logical one breaks and helps reducing bubble absorption, make coating reduce the quality of pin hole and current mark raising coating, aspect electrolytic degreasing, adopt the reverse pulse power supply, can make oil removing more thorough, help also preventing that plating piece from oozing hydrogen.
Summary of the invention
The purpose of this utility model just provides a kind of commutation cycle and can adjust, and positive and negative ratio or EDM Generator of Adjustable Duty Ratio are whole, can be used as the unidirectional pulse power supply, can be used as the controllable silicon reverse pulse power supply of DC power supply again.
Solution of the present utility model is such: be serially connected with controllable silicon (SCR1, SCR2) at both ends of power, the output of controllable silicon SCR 1 is received the input of controllable silicon SCR 2, one of load RL terminates to the tie point of controllable silicon (SCR1, SCR2), and the other end of load RL is received the centre tap of transformer B2; The control utmost point in controllable silicon SCR 1 is connected to the positive voltage turn-on control circuit, is connected to the negative voltage turn-on control circuit at the control utmost point of controllable silicon (SCR2).By controlling the ON time of positive and negative voltage turn-on control circuit, realize adjustable, the positive and negative ratio of commutation cycle or the control of EDM Generator of Adjustable Duty Ratio.
Described positive voltage turn-on control circuit is to adopt timing circuit, and the controlled stage of controllable silicon SCR 1 is received in the output of timing circuit; Described negative voltage turn-on control circuit is to adopt timing circuit, and the control utmost point of controllable silicon SCR 2 is received in the output of timing circuit.
If only adopt to allow positive voltage turn-on control circuit operate as normal, allow the negative voltage turn-on control circuit quit work, just can realize the unidirectional pulse circuit, can be used as the unidirectional pulse power supply.If adopt the continuous operation of control circuit control forward voltage turning circuit, just can realize providing direct current output, just a kind of DC power supply.
The utility model has the advantages that the commutation cycle can adjust, positive and negative ratio or EDM Generator of Adjustable Duty Ratio are whole, can be used as the unidirectional pulse power supply, can be used as DC power supply again, can be separately as the commutation power supply, also can use power supply as commutating pulse power supply double-purpose electric source or commutation, pulse, direct current three.
Description of drawings
Accompanying drawing is embodiment of the present utility model.
Accompanying drawing 1 is a circuit diagram of the present utility model.
Accompanying drawing 2 is electrical schematic diagrams of the present utility model.
Embodiment
The utility model is serially connected with controllable silicon (SCR1, SCR2) at both ends of power, the output of controllable silicon SCR 1 is received the input of controllable silicon SCR 2, one of load RL terminates to the tie point of controllable silicon (SCR1, SCR2), and the other end of load RL is received the centre tap of transformer B2; The control utmost point in controllable silicon SCR 1 is connected to the positive voltage turn-on control circuit, is connected to the negative voltage turn-on control circuit at the control utmost point with control silicon (SCR2).
Described positive voltage turn-on control circuit is to adopt timing circuit, and the controlled stage of controllable silicon SCR 1 is received in the output of timing circuit; Described negative voltage turn-on control circuit is to adopt timing circuit, and the control utmost point of controllable silicon SCR 2 is received in the output of timing circuit.
The control utmost point in controllable silicon SCR 2 is connected to switching tube BG4, and the base stage of switching tube BG4 is received the output of positive voltage turn-on control circuit; The control utmost point in controllable silicon SCR 1 is connected to switching tube BG3, and the base stage of switching tube BG3 is received the output of negative voltage turn-on control circuit.To guarantee that controllable silicon SCR 2 is turn-offed when controllable silicon SCR 1 conducting, controllable silicon SCR 1 is turn-offed during controllable silicon SCR 2 conductings.
Described positive voltage turn-on control circuit is to be made of arteries and veins circuit and sequence circuit, and the output of sequence circuit is received the base stage of switching tube BG1, and the emitting stage of switching tube BG1 is the output of positive voltage turn-on control circuit.
Described negative voltage turn-on control circuit is to be made of arteries and veins circuit and sequence circuit, and the output of sequence circuit is received switching tube BG2 base stage, and switching tube BG2 emitting stage is the output of negative turn-on control circuit.
Described impulse circuit is to be made of integrated circuit NE555; Described sequence circuit is to be made of integrated circuit CD4017.Commutation cycle can arbitrarily be adjusted by adjusting potentiometer W.
The adjustment of positive and negative ratio or duty ratio can realize by the method that changes the marshalling of CD4017 signal.
The output of the Q0--Q9 of integrated circuit CD4017 has a plurality of order outputs to receive the base stage of switching tube BG1, remaining output that has a plurality of order outputs and switching tube BG1 to be connect is separated by and is connect switching tube BG2 base stage behind the unsettled output, reserves an output termination zero clearing reset terminal R behind the unsettled output at last.
In the present embodiment, the apart output Q6 that a sky is arranged between positive voltage turn-on control circuit and negative voltage turn-on control circuit in the Q0--Q9 of integrated circuit CD4017 output, the negative voltage turn-on control circuit meets output Q7, every a unsettled output Q8, output Q9 meets reset terminal R by K switch 3 again.
Base stage and zero clearing reset terminal R at switching tube BG2 are connected to K switch 2.
The Q6 output of integrated circuit CD4017 is a R end of receiving integrated circuit CD4017 by K switch 1.
Adopt the Q0--Q5 of integrated circuit CD4017 to hold the base stage of receiving switching tube BG1 simultaneously, the Q6 of integrated circuit CD4017 receives the R end of integrated circuit CD4017 by K switch 1, the Q7 of integrated circuit CD4017 holds one tunnel base stage of receiving switching tube BG2, and the zero clearing reset terminal R of integrated circuit CD4017 is received on another road by K switch 2; The Q9 end of integrated circuit CD4017 is received the zero clearing reset terminal R of integrated circuit CD4017 by K switch 3.
K switch 3 is connected, when disconnecting, switch (K2, K1) is commutation power supply output state, at this moment, the pulse that NE555 sends makes the Q0--Q9 end sequential turn-on of integrated circuit CD4017, when the conducting of the Q0--Q5 of integrated circuit CD4017 end, switching tube BG1 conducting, controllable silicon SCR 1 conducting, controllable silicon SCR 2 is turn-offed, output positive pulse power supply; When the Q6 of integrated circuit CD4017 held conducting, switching tube BG1 closed, and power supply is output not; When the Q7 of integrated circuit CD4017 holds conducting, switching tube BG2 conducting, controllable silicon SCR 2 conductings, controllable silicon SCR 1 is turn-offed, output negative pulse power supply.The sequential turn-on that the Q0--Q9 end of integrated circuit CD4017 goes round and begins again just has the output of commutation power supply continuously.
K switch 1 is connected, and switch (K2, K3) is the DC power supply output state when disconnecting.At this moment, when the conducting of the Q0--Q5 of integrated circuit CD4017 end, switching tube BG1 conducting, controllable silicon SCR 1 output positive pulse power supply; When the conducting of Q6 end, CD4017 resets, and restarts to export in proper order at the Q0--Q5 end, thereby keeps controllable silicon SCR 1 always to be in conducting state, the output DC source.
The relation of partly organizing into groups was as shown in the table when the positive and negative ratio of circuit output and duty ratio were followed the CD4017 output:
| Sequence number | BG1 connects output | BG2 connects output | Empty output | The R output | Positive and negative ratio becomes duty ratio |
| 1 | Q0～Q2 | Q3 | Q4 | Duty ratio 3: 1 | |
| 2 | Q0～Q3 | Q4 | Q5 | Duty ratio 4: 1 | |
| 3 | Q0～Q4 | Q5 | Q6 | Duty ratio 5: 1 | |
| 4 | Q0～Q5 | Q6 | Q7 | Duty ratio 6: 1 | |
| 5 | Q0～Q2 | Q4 | Q3、Q5 | Q6 | Positive and negative ratio 3: 1 |
| 6 | Q0～Q3 | Q5 | Q4、Q6 | Q7 | Positive and negative ratio 4: 1 |
| 7 | Q0～Q4 | Q6 | Q5、Q7 | Q8 | Positive and negative ratio 5: 1 |
| 8 | Q0～Q5 | Q7 | Q6、Q8 | Q9 | Positive and negative ratio 6: 1 |
| 9 | Q0～Qn | Qn+1 | Output current | ||
| 10 | Q0～Q5 | Q6 | Output current |
In the present embodiment, sequence number 10 is direct current output connection, and sequence number 4 is the unidirectional pulse connection, and sequence number 8 is the reverse pulse connection.What adopt as direct current, unidirectional pulse, reverse pulse three usefulness power supplys is the combination of sequence number 10,4,8.
Claims (10)
1, a kind of controllable silicon reverse pulse power supply, it is characterized in that being serially connected with controllable silicon (SCR1, SCR2) at both ends of power, the output of controllable silicon SCR 1 is received the input of controllable silicon SCR 2, one of load RL terminates to the tie point of controllable silicon (SCR1, SCR2), and the other end of load RL is received the centre tap of transformer B2; The control utmost point in controllable silicon SCR 1 is connected to the positive voltage turn-on control circuit, is connected to the negative voltage turn-on control circuit at the control utmost point of controllable silicon (SCR2).
2, controllable silicon reverse pulse power supply according to claim 1 is characterized in that described positive voltage turn-on control circuit is to adopt timing circuit, and the controlled stage of controllable silicon SCR 1 is received in the output of timing circuit; Described negative voltage turn-on control circuit is to adopt timing circuit, and the control utmost point of controllable silicon SCR 2 is received in the output of timing circuit.
3, controllable silicon reverse pulse power supply according to claim 2 is characterized in that being connected to switching tube BG4 at the control utmost point of controllable silicon SCR 2, and the base stage of switching tube BG4 is received the output of positive voltage turn-on control circuit; The control utmost point in controllable silicon SCR 1 is connected to switching tube BG3, and the base stage of switching tube BG3 is received the output of negative voltage turn-on control circuit.
4, controllable silicon reverse pulse power supply according to claim 3, it is characterized in that described positive voltage turn-on control circuit is to be made of arteries and veins circuit and sequence circuit, the output of sequence circuit is received the base stage of switching tube BG1, and the emitting stage of switching tube BG1 is the output of positive voltage turn-on control circuit.
5, controllable silicon reverse pulse power supply according to claim 3, it is characterized in that described negative voltage turn-on control circuit is to be made of arteries and veins circuit and sequence circuit, the output of sequence circuit is received switching tube BG2 base stage, and switching tube BG2 emitting stage is the output of negative turn-on control circuit.
6, according to claim 4 or 5 described controllable silicon reverse pulse power supplys, it is characterized in that described impulse circuit is to be made of integrated circuit NE555; Described sequence circuit is to be made of integrated circuit CD4017.
7, controllable silicon reverse pulse power supply according to claim 6, the output of the Q0 that it is characterized in that integrated circuit CD4017---Q9 has a plurality of order outputs to receive the base stage of switching tube BG1, remaining output that has a plurality of order outputs and switching tube BG1 to be connect is separated by and is connect switching tube BG2 base stage behind the unsettled output, reserves an output termination zero clearing reset terminal R behind the unsettled output at last.
8, controllable silicon reverse pulse power supply according to claim 7, it is characterized in that Q0 at integrated circuit CD4017---the apart output Q6 that a sky is arranged between positive voltage turn-on control circuit and negative voltage turn-on control circuit in the Q9 output, the negative voltage turn-on control circuit meets output Q7, every a unsettled output Q8, output Q9 meets reset terminal R by K switch 3 again.
9, controllable silicon reverse pulse power supply according to claim 8 is characterized in that being connected to K switch 2 at base stage and the zero clearing reset terminal R of switching tube BG2.
10, controllable silicon reverse pulse power supply according to claim 8, the Q6 output that it is characterized in that integrated circuit CD4017 are the R ends of receiving integrated circuit CD4017 by K switch 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03207640 CN2640120Y (en) | 2003-08-23 | 2003-08-23 | Silicon controlled period commutating pulse power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03207640 CN2640120Y (en) | 2003-08-23 | 2003-08-23 | Silicon controlled period commutating pulse power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2640120Y true CN2640120Y (en) | 2004-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03207640 Expired - Fee Related CN2640120Y (en) | 2003-08-23 | 2003-08-23 | Silicon controlled period commutating pulse power |
Country Status (1)
| Country | Link |
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| CN (1) | CN2640120Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436648C (en) * | 2005-12-16 | 2008-11-26 | 浙江工业大学 | Method and apparatus for electrolytic synthesis of 3,6-dichloropyridine-carboxylic acid |
| CN109121280A (en) * | 2018-08-07 | 2019-01-01 | 中国原子能科学研究院 | A kind of reversing arrangement of switching magnet |
-
2003
- 2003-08-23 CN CN 03207640 patent/CN2640120Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436648C (en) * | 2005-12-16 | 2008-11-26 | 浙江工业大学 | Method and apparatus for electrolytic synthesis of 3,6-dichloropyridine-carboxylic acid |
| CN109121280A (en) * | 2018-08-07 | 2019-01-01 | 中国原子能科学研究院 | A kind of reversing arrangement of switching magnet |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |