CN104393654A - Phase shift full-bridge charger - Google Patents
Phase shift full-bridge charger Download PDFInfo
- Publication number
- CN104393654A CN104393654A CN201410749733.5A CN201410749733A CN104393654A CN 104393654 A CN104393654 A CN 104393654A CN 201410749733 A CN201410749733 A CN 201410749733A CN 104393654 A CN104393654 A CN 104393654A
- Authority
- CN
- China
- Prior art keywords
- circuit
- charge
- phase
- bridge
- charger
- 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
- 230000010363 phase shift Effects 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000007600 charging Methods 0.000 abstract description 18
- 238000004904 shortening Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000000368 destabilizing effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- H02J7/045—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
Landscapes
- Dc-Dc Converters (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a phase shift full-bridge charger, which mainly comprises a main circuit, a pre-rectification circuit, a DC/DC (direct current/direct current) phase shift full bridge, a post-rectification circuit, a control circuit, an STM32 minimum system, a filter circuit and a driving circuit. A control mode of the charger is implemented as follows: a stagewise equal-current charging method is adopted for a storage battery, the storage battery is charged with constant current, and when the voltage of the battery is detected by a sensor to be lower than a set value of 47 V, the battery is charged with constant current, so that the aims of remarkably shortening the charging time and prolonging the service life of the battery are fulfilled.
Description
Technical field
what the present invention relates to is a kind of equipment that can charge a battery, and a kind of charger based on phase-shifting full-bridge specifically, the invention still further relates to a kind of control mode being applied to charger in addition.
Background technology
along with the development of information technology, storage battery is widely used daily life field, such as communicates, steamer, automobile, various electronic products etc.All kinds of storage battery is with its output voltage stabilization, and power supply is reliable, and the advantages such as economic performance is good are widely used.The charging method mainly constant current that traditional charger adopts, or the charging modes of constant voltage, the method of these chargings easily causes storage battery overshoot or undercharge, and the former shortens the useful life of storage battery to a certain extent, and latter increases the charging interval.Therefore, if reasonably change charging scheme, use the charging method of science, as by constant voltage, combine with the charging modes of constant current, the charging interval can be shortened significantly, extend the useful life of battery.Along with the development that battery technology makes rapid progress, charging technique also will keep pace with the times, and therefore charging method has wide Research Significance.
summary of the invention
the invention reside in provide a kind of can efficient and rational charger for charge in batteries and control mode, thus reach and shorten the charging interval, the object in the useful life of prolongation battery outstandingly.
the present invention is achieved in that
charger based on phase-shifting full-bridge mainly comprises: main circuit, prime rectification circuit, DC/DC phase-shifting full-bridge, rear class rectification circuit, control circuit, STM32 minimum system, filter circuit, drive circuit.
the control mode of this charger is achieved in that the design is to current charge methods such as storage battery employing stages, first stage is constant current charge, when transducer detects cell voltage lower than set point 47V, adopt constant current to charge to it, make its charge volume reach maximum in a short time.When detecting that cell voltage exceedes set point, constant voltage is adopted to charge to it, until be full of battery.Control software design mainly completes the startup of DC/DC converter, the pi regulator of voltage and current double closed-loop, and phase shifting control PWM ripple generates and duty ratio upgrades, the protection main software of DC/DC converter realizes.
beneficial effect of the present invention:
(1) charge power supply have employed constant voltage, the control mode of constant current, uses constant current charge mode at the charging initial stage, and the phase adopts constant voltage charging method after charging, thus meets the charging curve of battery, extends the life-span of battery.
(2) charge power supply controls based on STM32F407IG, and adopt digital PI position model algorithm, achieve the control of control signal to phase-shifting full-bridge, make to charge high efficiency smart more.
(3) adopt low-cost STM32F407IG chip, make the fine of the cost control of whole product.
Accompanying drawing explanation
fig. 1 is phase-shifted full-bridge converter circuit controller block diagram;
fig. 2 is program structure flow chartr.
Embodiment
below in conjunction with accompanying drawing citing, the present invention is described in more detail:
embodiment 1
composition graphs 1, by finding out in the analysisanddiscusion of the operation principle to phase whole-bridging circuit, wanting the system that ensures is voltage-stabilizing system, open cycle system is just adopted to realize, this is because any small disturbance all may make system depart from original working point, this is the result that we are unwilling to see.So in order to ensure that system can normally work, we need to provide corresponding, require the very strict drive singal that control signal controls and adjusting driver produces, thus enable power switch in circuit safely, reliably according to us to the phase shifting angle corresponding to the requirement of output voltage.The circuit that can produce this control signal is the control circuit in phase-shifted full-bridge converter circuit.Usual control circuit comprises sampling, compares, the circuit such as a reference source, oscillator, pulse width modulator (PWM).Comparatively advanced circuit also can comprise error-detecting and error amplifying circuit part.They detect the destabilizing factor of output (comprising overcurrent, overvoltage, the phenomenon such as under-voltage, overheated) and flow to modulation circuit after amplifying, and modulation circuit eliminates these destabilizing factors by adjusting pulsewidth again.Like this, whole circuit forms the automatic control feedback closed loop loop that has adaptive ability.Whole like this charger is exactly constitute like this: main circuit, prime rectification circuit, DC/DC phase-shifting full-bridge, rear class rectification circuit, control circuit, STM32 minimum system, filter circuit, drive circuit.
embodiment 2
composition graphs 2 is the software flow pattern of the charger based on phase-shifting full-bridge.Program starts, and first carries out system initialization, comprises clock configuration, I/O port arrangement, interrupt priority level administration configuration, house dog is arranged, timer configures, ADC is arranged.AD samples afterwards, carry out Logic judgment, for a battery to be charged, the charging initial stage, sampled voltage was lower than set point, was constant current charge, the charging later stage, when sampled voltage is higher than set point, be then constant voltage charge, if voltage sensor records electric voltage exception, then controller turns off all switching tubes.
Claims (2)
1., based on a charger for phase-shifting full-bridge, it is characterized in that: comprise main circuit, prime rectification circuit, DC/DC phase-shifting full-bridge, rear class rectification circuit, control circuit, STM32 minimum system, filter circuit, drive circuit.
2. a kind of charger based on phase-shifting full-bridge according to claim 1, it is characterized in that: the current charge methods such as storage battery employing stage of the present invention, first stage is constant current charge, when transducer detects cell voltage lower than set point 47V, adopt constant current to charge to it, make its charge volume reach maximum in a short time; When detecting that cell voltage exceedes set point, constant voltage is adopted to charge to it, until be full of battery; Control software design mainly completes the startup of DC/DC converter, the pi regulator of voltage and current double closed-loop, and phase shifting control PWM ripple generates and duty ratio upgrades, the protection of DC/DC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749733.5A CN104393654A (en) | 2014-12-10 | 2014-12-10 | Phase shift full-bridge charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749733.5A CN104393654A (en) | 2014-12-10 | 2014-12-10 | Phase shift full-bridge charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104393654A true CN104393654A (en) | 2015-03-04 |
Family
ID=52611508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410749733.5A Pending CN104393654A (en) | 2014-12-10 | 2014-12-10 | Phase shift full-bridge charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104393654A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103618366A (en) * | 2013-11-22 | 2014-03-05 | 镇江赛尔尼柯自动化有限公司 | Intelligent ship charging machine and charging method |
| CN203554043U (en) * | 2013-11-22 | 2014-04-16 | 镇江赛尔尼柯自动化有限公司 | Smart ship charger |
| CN103754133A (en) * | 2014-01-26 | 2014-04-30 | 方贵龙 | Parallel high-power electromobile direct-current charging power system based on STM32 |
| EP2747195A1 (en) * | 2012-12-21 | 2014-06-25 | Stichting IMEC Nederland | Antenna arrangement for wireless powering |
-
2014
- 2014-12-10 CN CN201410749733.5A patent/CN104393654A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| EP2747195A1 (en) * | 2012-12-21 | 2014-06-25 | Stichting IMEC Nederland | Antenna arrangement for wireless powering |
| CN103618366A (en) * | 2013-11-22 | 2014-03-05 | 镇江赛尔尼柯自动化有限公司 | Intelligent ship charging machine and charging method |
| CN203554043U (en) * | 2013-11-22 | 2014-04-16 | 镇江赛尔尼柯自动化有限公司 | Smart ship charger |
| CN103754133A (en) * | 2014-01-26 | 2014-04-30 | 方贵龙 | Parallel high-power electromobile direct-current charging power system based on STM32 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |