CN104967318A - Impressed cathode current protection power supply - Google Patents
Impressed cathode current protection power supply Download PDFInfo
- Publication number
- CN104967318A CN104967318A CN201510282192.4A CN201510282192A CN104967318A CN 104967318 A CN104967318 A CN 104967318A CN 201510282192 A CN201510282192 A CN 201510282192A CN 104967318 A CN104967318 A CN 104967318A
- Authority
- CN
- China
- Prior art keywords
- microprocessor
- controller
- full
- bridge converter
- protection power
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to an impressed cathode current protection power supply, comprising a phase shift full bridge converter with synchronous rectification, a microprocessor, a driver, a detection circuit and a controller. The phase shift full bridge converter with synchronous rectification is used for converting a direct current bus voltage into impulse wave; the detection circuit is used for detecting voltage current signals in the phase shift full bridge converter, and outputting separately the voltage current signals to the microprocessor and the controller; the microprocessor is used for collecting isolated voltage current signals and generating control signals after internal arithmetic; the controller is used for generating phase shift signals to be outputted to the driver after receiving the control signals of the microprocessor; the driver is used for converting the signals generated by the controller into driving signals used for driving the MOSFET in the phase shift full bridge converter with synchronous rectification, and controlling the connection or disconnection of the MOSFET. The impressed cathode current protection power supply has the characteristics of high power supply system efficiency, high precision, and environmental protection.
Description
Technical field
The present invention relates to anticorrosion power technique fields, particularly relate to a kind of impressed cathodic current protection power source.
Background technology
Along with the development of science and technology, the condition of work (temperature, pressure, medium etc.) of large ship is more and more harsher, and thus in large ship, especially ocean-going freighter, the malicious event ratio caused due to corrosion day by day improves.Ship's corrosion is related to the safety of cargo security, environmental protection and crewman's life, is related to modernization construction, thus carries out anticorrosive work to large-scale hull very important.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of impressed cathodic current protection power source, and have power-supply system efficiency high, precision is high, the feature of environmental protection.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of impressed cathodic current protection power source, comprising and shift to full-bridge converter, microprocessor, driver, testing circuit and controller with synchronous rectification, describedly shifting to full-bridge converter for converting DC bus-bar voltage to impulse wave with synchronous rectification; This voltage and current signal branch for detecting the voltage and current signal shifted in full-bridge converter, and is exported to microprocessor and controller by described testing circuit; Described microprocessor for gather through isolation voltage and current signal and after internal arithmetic, produce control signal; Described controller, after accepting microprocessor-based control signal, exports to driver for generation of phase shift signal; Described driver converts the signal that controller produces to drive with synchronous rectification the drive singal shifting to Metal-Oxide Semiconductor field effect transistor in full-bridge converter, controls Metal-Oxide Semiconductor field effect transistor conducting or shutoff.
The described full-bridge converter of shifting to synchronous rectification comprises the full-bridge circuit, high frequency transformer and the filter circuit that are made up of Metal-Oxide Semiconductor field effect transistor; The former limit of described high frequency transformer is connected with the full-bridge circuit be made up of Metal-Oxide Semiconductor field effect transistor, and secondary is connected with the Metal-Oxide Semiconductor field effect transistor of two series connection; The secondary of described high frequency transformer is also connected with LC filter circuit.
Resonant inductance is provided with in the described full-bridge circuit be made up of Metal-Oxide Semiconductor field effect transistor.
Described microprocessor adopts the STM32 of Cortex-M3 kernel, and described controller adopts the UCC28950 of Texas Instrument; The digital-to-analogue conversion port of described microprocessor is connected with the signal controlling port of controller.
Described drive circuit comprises interconnective driving chip and driving transformer.
Described driving chip is the UCC27324 of Texas Instrument; Described driving transformer is PA0184 and PA0264 of PULSE company.
Beneficial effect
Owing to have employed above-mentioned technical scheme; the present invention compared with prior art; there is following advantage and good effect: the present invention can improve a kind of environmental protection for metal anti-corrosion protection; efficiency is high; the impressed cathodic current protection power source that precision is high; save coated metal than traditional zinc-plated mode, anticorrosion ability also promotes a grade simultaneously.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is the circuit diagram shifting to full-bridge converter in the present invention;
Fig. 3 is the annexation figure of microprocessor and controller in the present invention;
Fig. 4 is the schematic diagram of drive circuit in the present invention.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiments of the present invention relate to a kind of impressed cathodic current protection power source, as shown in Figure 1, comprising and shift to full-bridge converter, microprocessor, driver, testing circuit and controller with synchronous rectification, describedly shifting to full-bridge converter for converting DC bus-bar voltage to impulse wave with synchronous rectification; This voltage and current signal branch for detecting the voltage and current signal shifted in full-bridge converter, and is exported to microprocessor and controller by described testing circuit; Described microprocessor for gather through isolation voltage and current signal and after internal arithmetic, produce control signal; Described controller, after accepting microprocessor-based control signal, exports to driver for generation of phase shift signal; Described driver converts the signal that controller produces to drive with synchronous rectification the drive singal shifting to Metal-Oxide Semiconductor field effect transistor in full-bridge converter, controls Metal-Oxide Semiconductor field effect transistor conducting or shutoff.
As shown in Figure 2, the described full-bridge converter of shifting to synchronous rectification comprises the full-bridge circuit, high frequency transformer and the filter circuit that are made up of Metal-Oxide Semiconductor field effect transistor; The former limit of described high frequency transformer is connected with the full-bridge circuit be made up of Metal-Oxide Semiconductor field effect transistor, and secondary is connected with the Metal-Oxide Semiconductor field effect transistor of two series connection; The secondary of described high frequency transformer is also connected with LC filter circuit.Wherein, resonant inductance is provided with in the described full-bridge circuit be made up of Metal-Oxide Semiconductor field effect transistor.Because this phase-shifted full-bridge converter is with synchronous rectification, and instead of traditional diode rectification in the mode of switch MOS FET, make power-supply system greatly reduce loss at diode current flow.
Described microprocessor system gathers the voltage and current signal of power-supply system, then current acquisition signal is drawn a control signal compared with given current signal, this control signal is as the Setting signal of voltage loop, again compared with voltage acquisition signal, draw power control signal, export to control circuit.As shown in Figure 3, microprocessor adopts the STM32 of Cortex-M3 kernel, by microprocessor analog-to-digital conversion port processing voltage and current signal, then after microprocessor internal computing, through digital-to-analogue conversion port, control signal is passed to controller again, controller adopts the UCC28950 of Texas Instrument.
Described drive circuit comprises interconnective driving chip and driving transformer, what this drive circuit adopted is the mode that special driving chip combines with driving transformer, the signal of control circuit is amplified several times by driving chip, is then connected with driving transformer, Direct driver MOSFET.As Fig. 4 driving chip adopts the UCC27324 of Texas Instrument, driving transformer adopts PA0184 and PA0264 of PULSE company respectively.
Claims (6)
1. an impressed cathodic current protection power source, comprise and shift to full-bridge converter, microprocessor, driver, testing circuit and controller with synchronous rectification, it is characterized in that, describedly shifting to full-bridge converter for converting DC bus-bar voltage to impulse wave with synchronous rectification; This voltage and current signal branch for detecting the voltage and current signal shifted in full-bridge converter, and is exported to microprocessor and controller by described testing circuit; Described microprocessor for gather through isolation voltage and current signal and after internal arithmetic, produce control signal; Described controller, after accepting microprocessor-based control signal, exports to driver for generation of phase shift signal; Described driver converts the signal that controller produces to drive with synchronous rectification the drive singal shifting to Metal-Oxide Semiconductor field effect transistor in full-bridge converter, controls Metal-Oxide Semiconductor field effect transistor conducting or shutoff.
2. impressed cathodic current protection power source according to claim 1, is characterized in that, the described full-bridge converter of shifting to synchronous rectification comprises the full-bridge circuit, high frequency transformer and the filter circuit that are made up of Metal-Oxide Semiconductor field effect transistor; The former limit of described high frequency transformer is connected with the full-bridge circuit be made up of Metal-Oxide Semiconductor field effect transistor, and secondary is connected with the Metal-Oxide Semiconductor field effect transistor of two series connection; The secondary of described high frequency transformer is also connected with LC filter circuit.
3. impressed cathodic current protection power source according to claim 2, is characterized in that, is provided with resonant inductance in the described full-bridge circuit be made up of Metal-Oxide Semiconductor field effect transistor.
4. impressed cathodic current protection power source according to claim 1, is characterized in that, described microprocessor adopts the STM32 of Cortex-M3 kernel, and described controller adopts the UCC28950 of Texas Instrument; The digital-to-analogue conversion port of described microprocessor is connected with the signal controlling port of controller.
5. impressed cathodic current protection power source according to claim 1, is characterized in that, described drive circuit comprises interconnective driving chip and driving transformer.
6. impressed cathodic current protection power source according to claim 5, is characterized in that, described driving chip is the UCC27324 of Texas Instrument; Described driving transformer is PA0184 and PA0264 of PULSE company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510282192.4A CN104967318A (en) | 2015-05-28 | 2015-05-28 | Impressed cathode current protection power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510282192.4A CN104967318A (en) | 2015-05-28 | 2015-05-28 | Impressed cathode current protection power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104967318A true CN104967318A (en) | 2015-10-07 |
Family
ID=54221301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510282192.4A Pending CN104967318A (en) | 2015-05-28 | 2015-05-28 | Impressed cathode current protection power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104967318A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100232180A1 (en) * | 2009-03-10 | 2010-09-16 | Hitachi, Ltd. | Power supply unit, hard disk drive and method of switching the power supply unit |
| CN202309549U (en) * | 2011-08-03 | 2012-07-04 | 苏州热工研究院有限公司 | Fuzzy double-closed-loop control phase-shift full-bridge soft-switching IPM (intelligent power module) intelligent potentiostat |
| CN103904901A (en) * | 2014-03-28 | 2014-07-02 | 成都芯通科技股份有限公司 | Phase-shift full-bridge converter circuit and control method |
| CN104113213A (en) * | 2013-04-17 | 2014-10-22 | 比亚迪股份有限公司 | DC-DC converting device for electric automobiles |
-
2015
- 2015-05-28 CN CN201510282192.4A patent/CN104967318A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100232180A1 (en) * | 2009-03-10 | 2010-09-16 | Hitachi, Ltd. | Power supply unit, hard disk drive and method of switching the power supply unit |
| CN202309549U (en) * | 2011-08-03 | 2012-07-04 | 苏州热工研究院有限公司 | Fuzzy double-closed-loop control phase-shift full-bridge soft-switching IPM (intelligent power module) intelligent potentiostat |
| CN104113213A (en) * | 2013-04-17 | 2014-10-22 | 比亚迪股份有限公司 | DC-DC converting device for electric automobiles |
| CN103904901A (en) * | 2014-03-28 | 2014-07-02 | 成都芯通科技股份有限公司 | Phase-shift full-bridge converter circuit and control method |
Non-Patent Citations (2)
| Title |
|---|
| 王兆安等: "《电力电子技术》", 31 January 2010, 机械工业出版社 * |
| 陶小鹏: "高频开关型阴极保护电源研究与设计", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202167993U (en) | Phase-shifted full-bridge switching power supply converter with lossless snubber circuit | |
| CN103248234B (en) | Control method applied to bidirectional isolation full-bridge current transformer for battery energy storage | |
| CN103051172A (en) | Magnetic bias suppression system and method of phase-shifted full bridge converter for photovoltaic power generation | |
| CN201259535Y (en) | A DC electric power used for large current transducer check | |
| CN104638970A (en) | Single-phase high-frequency inverter based on SCC-LCL-T resonant network | |
| CN110896294B (en) | Power take-off vehicle-mounted power supply realized by power electronic technology | |
| CN109951089B (en) | Control method of single-phase quasi-single-stage AC-DC converter | |
| CN110112919A (en) | A kind of suppressing method of double active bridging parallel operation magnetic cell bias currents | |
| CN201341025Y (en) | Active power filtering and reactive power compensation device of distribution network | |
| US10673340B2 (en) | Isolated boost-buck power converter | |
| CN104967318A (en) | Impressed cathode current protection power supply | |
| CN103036465A (en) | Control method and system for DCDC (Direct Current to Direct Current) converter | |
| CN105006980A (en) | Three-level NPC current transformer PWM control strategy based on carrier wave overlapping | |
| CN110138244A (en) | 48 arteries and veins vertoroes of DC side passive harmonic suppression technology | |
| CN202330583U (en) | Pure inductive load power evaluation system of alternating current/direct current/alternating current traction converter | |
| CN102158114A (en) | Method and device for measuring and controlling a four-quadrant cascaded high voltage transducer power unit | |
| CN115696664A (en) | High-frequency induction heating power supply frequency tracking control method based on sampling method | |
| CN206149162U (en) | Uranium ore well logging is with neutron tube ion source drive high -voltage pulse power | |
| CN201278004Y (en) | Chopper experiment system for large power transformer power unit | |
| CN110011560B (en) | Double-buck full-bridge grid-connected inverter with circulating current eliminating capability and control circuit thereof | |
| CN202309076U (en) | Hybrid filtering microcomputer intelligent control motor power-saving device | |
| CN201750163U (en) | Three-phase energy saving feedback load | |
| CN102347618A (en) | Three-phase energy feedback device | |
| CN204597808U (en) | Based on the single-phase high frequency inverter of SCC-LCL-T resonant network | |
| CN205029571U (en) | Super wide input voltage's isolation power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |
|
| RJ01 | Rejection of invention patent application after publication |