CN203504439U - Large-power reversing pulse power supply - Google Patents
Large-power reversing pulse power supply Download PDFInfo
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- CN203504439U CN203504439U CN201320510800.9U CN201320510800U CN203504439U CN 203504439 U CN203504439 U CN 203504439U CN 201320510800 U CN201320510800 U CN 201320510800U CN 203504439 U CN203504439 U CN 203504439U
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- power supply
- control unit
- power
- load
- adjustable
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Abstract
The utility model discloses a large-power reversing pulse power supply, and the power supply comprises a control unit, an adjustable direct-current power supply, a plurality of driving units, a plurality of power units, an upper computer, a feedback unit, and a load. The adjustable direct-current power supply is connected with the power-supply control end of the control unit. The plurality of power units and the load are in parallel connection between two ends of the adjustable direct-current power supply. The control unit is connected with the corresponding power unit through the corresponding driving unit. The load is connected with the control unit through the feedback unit. The control unit is connected with the upper computer. Through the control unit, the output voltage of the adjustable direct-current power supply can be controller and the outputs of some power units are selected. Multiple sensors and the feedback unit are respectively used for detecting in a segment manner and feeding back the information of a rising edge and a falling edge to the control unit for output correction, thereby enabling the rising and falling edges of an output waveform to be steep, and preventing an overcharging phenomenon. The output waveforms in a total range can be controlled to be consistent.
Description
Technical field
The utility model relates to a kind of high-power positive and negative commutating pulse power supply, belongs to power technique fields.
Background technology
Along with the requirement that non-ferrous metal is electroplated and electronic circuit board is electroplated is more and more higher, high-power positive and negative commutating pulse power supply arises at the historic moment, and its output waveform is very large on electroplating impact, and output waveform is the important technology index of high-power positive and negative commutating pulse power supply.Existing high-power positive and negative commutating pulse power supply is because being operated in pulse condition, output current is large, the rising edge of output waveform and trailing edge are difficult to accomplish precipitous, as easy as rolling off a log overshoot, and again because output is variable, be difficult to guarantee that output waveform is consistent in gamut, affect it in the application in the fields such as plating.
Utility model content
The deficiency that the utility model exists in order to solve above-mentioned prior art, the utility model object is to provide a kind of high-power positive and negative commutating pulse power supply, to overcome the defect of prior art.
In order to achieve the above object, the utility model provides a kind of high-power positive and negative commutating pulse power supply, described high-power positive and negative commutating pulse power supply comprises control unit, adjustable DC power supply, several driver elements, some power cells, host computer, feedback unit and load, described adjustable DC power supply is connected with the power control terminal of described control unit, described several power cells and described load are connected in the two ends of described adjustable DC power supply, described control unit is connected with corresponding power cell by described driver element, described load is connected with described control unit by described feedback unit, described control unit is connected with described host computer.
Preferably, adjustable DC power supply described in the utility model is high frequency switch power, wherein preferably, described adjustable DC power supply comprises the uncontrollable rectification circuit of three-phase and AC/DC translation circuit, the input of the uncontrollable rectification circuit of described three-phase is connected with three phase mains, the output of the uncontrollable rectification circuit of described three-phase is connected with the input of AC/DC translation circuit, the output of described AC/DC translation circuit is connected with load with power cell, and the control end of described AC/DC translation circuit is connected with control unit.
Preferably, adjustable DC power supply described in the utility model is connected with described control unit by RS485 interface.
Preferably, control unit described in the utility model is connected with described host computer by described communication interface.
Compared with prior art, the beneficial effects of the utility model are: the utility model is controlled the output voltage of adjustable DC power supply by control unit and selected the output of some power cell, utilize the information of multisensor segmentation detection and feedback unit high-speed feedback rising edge, trailing edge to export to revise to control unit, make rising edge and the trailing edge of output waveform of high-power positive and negative commutating pulse power supply precipitous, make it be difficult for occurring overshoot phenomenon, and it is consistent to control the interior output waveform of gamut, makes it adapt to the needs of electroplating.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of high-power positive and negative commutating pulse power supply of the present utility model;
Fig. 2 is another circuit block diagram of high-power positive and negative commutating pulse power supply of the present utility model;
Fig. 3 is the circuit diagram of the control unit of high-power positive and negative commutating pulse power supply of the present utility model;
Fig. 4 is another electronic chart of the control unit of high-power positive and negative commutating pulse power supply of the present utility model;
Fig. 5 is another electronic chart of the control unit of high-power positive and negative commutating pulse power supply of the present utility model;
Fig. 6 is the circuit diagram of the adjustable DC power supply of high-power positive and negative commutating pulse power supply of the present utility model;
Fig. 7 is the circuit diagram of the driver element of high-power positive and negative commutating pulse power supply of the present utility model;
Fig. 8 is the circuit diagram of the power cell of high-power positive and negative commutating pulse power supply of the present utility model;
Fig. 9 is the circuit diagram of the feedback unit of high-power positive and negative commutating pulse power supply of the present utility model.
Description of reference numerals is as follows:
Adjustable DC power supply 1, some power cells 2, several driver elements 3, load 4, feedback unit 5, control unit 6, communication interface 7, host computer 8.
Embodiment
In order to make auditor can further understand structure of the present utility model, feature and other objects, now in conjunction with appended preferred embodiment, being accompanied by accompanying drawing is described in detail as follows, the illustrated embodiment of this accompanying drawing is only for the technical solution of the utility model is described, and non-limiting the utility model.
As shown in Figure 1, high-power positive and negative commutating pulse power supply of the present utility model comprises control unit 6, adjustable DC power supply 1, several driver elements 3, some power cells 2, host computer 8, feedback unit 5 and load 4, described adjustable DC power supply 1 is connected with the power control terminal of control unit 6 by RS485 interface, described several power cells 2 and load 4 are connected in the two ends of adjustable DC power supply 1, described control unit 6 is connected with corresponding power cell 2 by driver element 3, and described load 4 is connected with control unit 6 by feedback unit 5.6 pairs of control units are controlled the output voltage of adjustable DC power supply 1 and are selected the output of some power cell 2, utilize the information of multisensor segmentation detection and feedback unit 5 high-speed feedback rising edges, trailing edge to export to revise to control unit 6, make rising edge and the trailing edge of output waveform of high-power positive and negative commutating pulse power supply precipitous, make it be difficult for occurring overshoot phenomenon, and it is consistent to control the interior output waveform of gamut, makes it adapt to the needs of electroplating.
As shown in Figure 2, high-power positive and negative commutating pulse power supply of the present utility model also comprises communication interface 7 and host computer 8, and control unit 6 is connected with host computer 8 by communication interface 7.Thus, thus, host computer 8 is transported to control unit 6 by communication interface 7 by external information.
As shown in Figures 3 to 5; control unit 6 of the present utility model is comprised of the CycloneIII series large-scale F PGA chip of a general single-chip microcomputer He Yikuai ALTERA company; single-chip microcomputer is by communication interface 7 and host computer 8 communications; and by bus mode and FPGA swap data; wherein; P300-P301, P303-P310, P312-P321 be totally 20 terminals, the corresponding driver module of each terminal; P302 is input signal splicing ear, and P311 is control unit power supply terminal; Fpga chip is the core of this control unit, and core running frequency is up to 400MHz, and inside is embedded with a single-chip microcomputer and calculates for real time data, wherein, ADC_AD[11..0] be and ADC interface data address wire that ADC_CLK_A provides clock for ADC.ADBUS_S0-ADBUS_S7, PC7_S is and external interface microcontroller, Apu[9..0], Apd[9..0], Anu[9..0], And[9..0], Bpu[9..0], Bpd[9..0], Bnu[9..0], Bnd[9..0] signal respectively with draw outward terminals P 4-P5, P8-P13, P17-P28 totally 20 terminals be connected.
As shown in Figure 6, adjustable DC power supply 1 of the present utility model adopts high frequency switch power, its structure is the uncontrollable rectification circuit of three-phase and DC/DC translation circuit, the input of the uncontrollable rectification circuit of described three-phase is connected with three phase mains, its output is connected with the input of DC/DC translation circuit, the output of described DC/DC translation circuit is connected with load with power cell, and the control end of described DC/DC translation circuit is connected with control unit, wherein, the uncontrollable rectification circuit of three-phase comprises the bridge circuit and the capacitor C 81 that is connected in parallel on the output of bridge circuit by diode D83-D88, DC/DC translation circuit comprises the full-bridge switch consisting of triode Q80-Q83, the transformer T80 being connected with the output of full-bridge switch, be serially connected in respectively the rectifier diode D80 at transformer T80 two ends, D91 and the output that is connected on transformer T80 are by inductance L 80, the filter circuit that capacitor C 82 forms, triode Q80, Q83 is one group, triode Q81, Q82 is another group, the base stage of triode Q80-Q83 is connected with control unit as the control end of full-bridge switch, three-phase alternating current is just lower negative high voltage direct current in the uncontrollable rectification circuit short-term training of three-phase, after the pwm pulse ripple that forms high pressure through two groups of control switch one after the other work of full-bridge switch again, by transformer T80, become low pressure impulse, again through diode D80, D91 rectification, inductance L 80, capacitor C 82 filtering become direct current, by control unit, control the ON time of the control end of full-bridge switch and just can control corresponding output dc voltage.
As shown in Figure 7, driver element 3 of the present utility model consists of four identical drive circuits, at this, only describes one of them, and this drive circuit mainly consists of chip U1, its signal input part is connected with an output of control unit, and its signal output part is connected with power cell.
As shown in Figure 8, power cell 2 of the present utility model comprises field effect transistor Q1-Q4, current sensor CT, load RL1, inductance L 1, field effect transistor Q1, the drain electrode of Q2 is contact J1 altogether, field effect transistor Q3, the source electrode of Q4 is received contact J2 altogether, the drain electrode of the source electrode of field effect transistor Q1 and field effect transistor Q2 is ground connection altogether, the drain electrode of the source electrode of field effect transistor Q2 and field effect transistor Q4 is ground connection altogether, after described current sensor CT left serial connection load RL and inductance L 1, be connected on the source electrode place of source electrode and the field effect transistor Q2 of field effect transistor Q1, the grid of field effect transistor Q1-Q4 is connected with driver element Yi road drive circuit respectively, wherein, J1, J2 is just connecing respectively adjustable DC power supply, negative pole, 9 pairs of input powers of capacitor C carry out filtering, field effect transistor Q1, Q4 forms forward pipe, field effect transistor Q2, Q3 forms reversing tube, when field effect transistor Q1, Q4 conducting, field effect transistor Q2, Q3 cut-off, electric current by AI+ flow through field effect transistor Q1, L1, AO+ end, load RL1, current sensor CT, AO-end, Q4, flow out to AI-and hold, formation forward current, when field effect transistor Q2, Q3 conducting, field effect transistor Q1, Q4 cut-off, electric current by AI+ flow through field effect transistor Q2, AO-end, current sensor CT, load RL1, AO+ end, L1, Q3, flow out to AI-and hold, formation reverse current.
As shown in Figure 9, feedback unit 5 of the present utility model is mainly by binding post P20, resistance R 22, R21, R24, VR20, R23, capacitor C 21, C22, transformer T20, discharge circuit U20 forms, current sensor employing in power cell is output as current mode, the output of a plurality of transducers can be directly parallel in 1 of terminals P 20, 4 pin, the output current of the transducer resistance R 22 of flowing through, in resistance R 22, produce voltage signal, this voltage signal is again through capacitor C 21, C22, transformer T20 common mode rejection circuit, again through resistance R 21, R24, VR20, R23 is to high speed amplifier U20, U20 is an emitter follower circuit, carry out impedance transformation, current feedback signal is delivered to high-speed ADC samples, ADC delivers to sampled result in FPGA by ADC_AD0-ADC_AD11 data/address line.
Need statement, above-mentioned utility model content and embodiment are intended to prove the practical application of technical scheme that the utility model provides, and should not be construed as the restriction to the utility model protection range.Those skilled in the art are in spirit of the present utility model and principle, when doing various modifications, be equal to and replace or improve.Protection range of the present utility model is as the criterion with appended claims.
Claims (6)
1. a high-power positive and negative commutating pulse power supply, it is characterized in that, described high-power positive and negative commutating pulse power supply comprises control unit, adjustable DC power supply, several driver elements, some power cells, feedback unit and load, described adjustable DC power supply is connected with the power control terminal of described control unit, described several power cells and described load are connected in the two ends of described adjustable DC power supply, described control unit is connected with corresponding power cell by described driver element, and described load is connected with described control unit by described feedback unit.
2. high-power positive and negative commutating pulse power supply according to claim 1, is characterized in that, described adjustable DC power supply is high frequency switch power.
3. high-power positive and negative commutating pulse power supply according to claim 1, it is characterized in that, described adjustable DC power supply comprises the uncontrollable rectification circuit of three-phase and AC/DC translation circuit, the input of the uncontrollable rectification circuit of described three-phase is connected with three phase mains, the output of the uncontrollable rectification circuit of described three-phase is connected with the input of AC/DC translation circuit, the output of described AC/DC translation circuit is connected with described load with power cell, and the control end of described AC/DC translation circuit is connected with described control unit.
4. according to the high-power positive and negative commutating pulse power supply described in any one in claims 1 to 3, it is characterized in that, described adjustable DC power supply is connected with described control unit by RS485 interface.
5. according to the high-power positive and negative commutating pulse power supply described in any one in claims 1 to 3, it is characterized in that, also comprise host computer, described control unit is connected with described host computer.
6. high-power positive and negative commutating pulse power supply according to claim 5, is characterized in that, described control unit is connected with described host computer by communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510800.9U CN203504439U (en) | 2013-08-20 | 2013-08-20 | Large-power reversing pulse power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510800.9U CN203504439U (en) | 2013-08-20 | 2013-08-20 | Large-power reversing pulse power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203504439U true CN203504439U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320510800.9U Expired - Lifetime CN203504439U (en) | 2013-08-20 | 2013-08-20 | Large-power reversing pulse power supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN203504439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571250A (en) * | 2015-02-10 | 2015-04-29 | 四川英杰电气股份有限公司 | Parallel high-power switching power supply |
| CN105811774A (en) * | 2016-01-28 | 2016-07-27 | 北京北交思远科技发展有限公司 | DC/DC converter output control method |
-
2013
- 2013-08-20 CN CN201320510800.9U patent/CN203504439U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571250A (en) * | 2015-02-10 | 2015-04-29 | 四川英杰电气股份有限公司 | Parallel high-power switching power supply |
| CN104571250B (en) * | 2015-02-10 | 2016-03-16 | 四川英杰电气股份有限公司 | A kind of parallel great power Switching Power Supply |
| CN105811774A (en) * | 2016-01-28 | 2016-07-27 | 北京北交思远科技发展有限公司 | DC/DC converter output control method |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230324 Address after: 332000 No. 6, Jinxiu 1st Road, Shacheng Industrial Park, Chaisang District, Jiujiang City, Jiangxi Province Patentee after: Jiangxi Liyuan Haina Technology Co.,Ltd. Address before: 523588 Baiyinpu, Jiujiangshui Village, Changping Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN LI & YUAN ELECTRICAL EQUIPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |