CN206517086U - A kind of self-adaption constant power charger - Google Patents
A kind of self-adaption constant power charger Download PDFInfo
- Publication number
- CN206517086U CN206517086U CN201621467887.6U CN201621467887U CN206517086U CN 206517086 U CN206517086 U CN 206517086U CN 201621467887 U CN201621467887 U CN 201621467887U CN 206517086 U CN206517086 U CN 206517086U
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- circuit
- power
- charger
- self
- filter circuit
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model belongs to the technical field of charger, and in particular to a kind of self-adaption constant power charger, including filter circuit, booster circuit, circuit for power conversion, control circuit and auxiliary power circuit；The filter circuit includes input filter circuit and output filter circuit；Order is electrically connected the input filter circuit with booster circuit, circuit for power conversion, output filter circuit successively, and the control circuit is connected with booster circuit, circuit for power conversion, output filter circuit respectively；The auxiliary power circuit is booster circuit, circuit for power conversion, control circuit provide power supply.The utility model provides a kind of self-adaption constant power charger, the charging ability of charger is played to greatest extent so that charger is always worked under its peak power output state, reaches the effect of quick charge, saves the charging interval.
Description
Technical field
The utility model belongs to the technical field of charger, and in particular to a kind of self-adaption constant power charger.
Background technology
With the fast development of Power Electronic Technique, its application field constantly expands, in our life also increasingly
It is important, huge effect is played in the application aspect of Future New Energy Source.Meanwhile, also various control technologies are proposed with renewal higher
Requirement.
Lithium battery is since the invention, with energy density is high, operating voltage is high, self-discharge rate is low, have extended cycle life, without dirt
The unique advantages, the unblamable first choice as power battery of electric vehicle such as dye.On the one hand, to ensure electric car endurance,
Lithium battery capacity is done greatly as far as possible；On the other hand, how to the lithium battery of Large Copacity, especially whole battery pack carries out quick
The charging of stable safety, as urgent problem to be solved.At present, constant-voltage charge, constant-current charge are used the charger of in the market more
Or both have both the mode of charging.In given charger peak power output, the peak power time of occurrence of charger is short,
Because charger does not use peak power output in most times, so the charging interval is all long, be not suitable for great Rong
Measure the quick charge of battery.
The content of the invention
In order to overcome defect of the prior art, the utility model provides a kind of self-adaption constant power charger, maximum limit
Degree plays the charging ability of charger so that charger is always worked under its peak power output state, reaches quick charge
Effect, save the charging interval.
In order to achieve the above object, the utility model uses following technical scheme：
A kind of self-adaption constant power charger, including filter circuit, booster circuit, circuit for power conversion, control circuit with
And auxiliary power circuit；The filter circuit includes input filter circuit and output filter circuit；The input filter circuit according to
Secondary order is electrically connected with booster circuit, circuit for power conversion, output filter circuit, it is described control circuit respectively with booster circuit,
Circuit for power conversion, output filter circuit connection；The auxiliary power circuit is booster circuit, circuit for power conversion, control electricity
Road provides power supply.
Further, the input filter circuit uses EMC filter circuit or EMI filter circuit, for filtering out power network
Multiple harmonic；The output filter circuit uses LC filter circuits or π type filter circuits.
Further, the booster circuit uses PFC boost circuit, for the 220V alternating currents after after filtering to be raised
To 410V DC high-voltages, the power factor of product is improved.
Further, the circuit for power conversion uses LLC circuit for power conversion, for the direct current for exporting booster circuit
High-tension electricity is converted into the charging voltage and electric current of outer battery.
Further, the control circuit uses the digital IIR filters processing unit based on DSP, for booster circuit
Output voltage, electric current with circuit for power conversion carry out digital sample processing and control.
Further, the digital IIR filters processing unit based on DSP can detect the change of the outer internal resistance of cell constantly
Change, according to the change of the outer internal resistance of cell, adjust the output of charger, reach the purpose of invariable power charging.
As a result of above technical scheme, positive beneficial effect of the present utility model is：
1. the utility model can calculate the internal resistance of outer battery automatically using the digital IIR filters processing unit based on DSP,
According to the change of the outer internal resistance of cell, output voltage, the electric current of charger are adjusted, can make charger is constant to be filled in peak power
Electricity, plays the charging ability of charger to greatest extent, reaches the effect of quick charge, saves the charging interval, extends the longevity of battery
Life.
2. self-adaption constant power charger of the present utility model can the extraneous battery of automatic sensing it is special with charging interval battery
The change of property, the output to charger is adjusted, and substantially increases the reliability and stability of charger.
Brief description of the drawings
Fig. 1 is a kind of circuit theory diagrams of self-adaption constant power charger of the utility model embodiment；
Fig. 2 is invariable power curve map when the utility model self-adaption constant power charger charges.
Embodiment
The utility model is made with specific embodiment below in conjunction with the accompanying drawings and being described in further detail.
Embodiment one：Referring to shown in Fig. 1 and Fig. 2, a kind of self-adaption constant power charger, including filter circuit, boosting electricity
Road, circuit for power conversion, control circuit and auxiliary power circuit；The filter circuit includes input filter circuit and output is filtered
Wave circuit；Order is electrically connected the input filter circuit with booster circuit, circuit for power conversion, output filter circuit successively, institute
Control circuit is stated to be connected with booster circuit, circuit for power conversion, output filter circuit respectively；The auxiliary power circuit is boosting
Circuit, circuit for power conversion, control circuit provide power supply.
Further, the input filter circuit uses EMC filter circuit or EMI filter circuit；The output filtering
Circuit uses LC filter circuits or π type filter circuits；The booster circuit uses PFC boost circuit；The power conversion electricity
Road uses LLC circuit for power conversion；The control circuit uses the digital IIR filters processing unit based on DSP.
The operation principle of the utility model self-adaption constant power charger is as follows：
220V alternating currents first pass through EMC filter circuit or EMI filter circuit, filter out the multiple harmonic of power network, Yi Jiping
Cover pollution of the power supply to power network in itself.Then after filtering after 220V alternating currents bring the voltage up again by PFC boost circuit
To 410V DC high-voltages, to improve the power factor of charger, the power factor of this charger is up to 0.998,410V direct currents
High-tension electricity passes through LLC circuit for power conversion again, and 410V DC high-voltages are converted into the charging voltage of outer battery, such as 48VDC,
60VDC, 72VDC, 96VDC, are exported, this completes the conversion of voltage and current after charging voltage is filtered.This practicality is new
Type is carried out using the digital IIR filters processing unit based on DSP to the voltage and current of booster circuit, output filter circuit output
Collection, then after PID is calculated output mos pipe control signal so as to PFC boost circuit and LLC circuit for power conversion
Output voltage and electric current carry out management and control, and then realize charger self-adaption constant power charging.
The utility model self-adaption constant power charger realizes that the principle of invariable power charging is as follows：
First allow charger to export the voltage U1 and 1A of outer battery low current I1, then calculated and gone out according to R1=U1/I1
The internal resistance R1 of battery, then little by little increases electric current, and calculate the change internal resistance R2=U2/I2 of outer battery.When charger output
When power is close to maximum invariable power, the approximate internal resistance R3=U3/I3 of battery outside in maximum invariable power can be calculated, according to closing on
Point (in the time of Millisecond) constant characteristic of the internal resistance of cell, by formula P=I2* R, can calculate the electricity that now outer battery needs
StreamMeanwhile, by formulaThe voltage of control required for calculating chargerThis
Sample, charger passes through the adjustment of the digital IIR filters processing unit based on DSP, and the outer internal resistance of cell is slow in charging process
Change, charger constantly adjusts the output of charger, so as to complete filling for invariable power also according to the change of the outer internal resistance of cell
Electricity, until charging terminates.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this practicality
It is new.Person skilled in the art obviously can easily make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without passing through performing creative labour.Therefore, the utility model is not limited to here
Embodiment, those skilled in the art according to it is of the present utility model disclose, do not depart from the improvement that the utility model category is made
All should be within protection domain of the present utility model with modification.
Claims (6)
1. a kind of self-adaption constant power charger, it is characterised in that：Including filter circuit, booster circuit, circuit for power conversion, control
Circuit and auxiliary power circuit processed；The filter circuit includes input filter circuit and output filter circuit；The input filter
Wave circuit successively order electrically connect with booster circuit, circuit for power conversion, output filter circuit, it is described control circuit respectively with liter
Volt circuit, circuit for power conversion, output filter circuit connection；The auxiliary power circuit be booster circuit, circuit for power conversion,
Circuit is controlled to provide power supply.
2. self-adaption constant power charger according to claim 1, it is characterised in that：The input filter circuit is used
EMC filter circuit or EMI filter circuit, the multiple harmonic for filtering out power network；The output filter circuit is filtered using LC
Circuit or π type filter circuits.
3. self-adaption constant power charger according to claim 1, it is characterised in that：The booster circuit uses PFC liters
Volt circuit, for the 220V alternating currents after after filtering to be increased into 410V DC high-voltages, improves the power factor of product.
4. self-adaption constant power charger according to claim 1, it is characterised in that：The circuit for power conversion is used
LLC circuit for power conversion, the DC high-voltage for booster circuit to be exported is converted into the charging voltage and electric current of outer battery.
5. self-adaption constant power charger according to claim 1, it is characterised in that：The control circuit, which is used, to be based on
DSP digital IIR filters processing unit, numeral is carried out for the output voltage to booster circuit and circuit for power conversion, electric current
Sampling processing and control.
6. self-adaption constant power charger according to claim 5, it is characterised in that：The digital PID control based on DSP
Processing unit processed can detect the change of the outer internal resistance of cell constantly, according to the change of the outer internal resistance of cell, adjust the output of charger,
Reach the purpose of invariable power charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467887.6U CN206517086U (en) | 2016-12-29 | 2016-12-29 | A kind of self-adaption constant power charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467887.6U CN206517086U (en) | 2016-12-29 | 2016-12-29 | A kind of self-adaption constant power charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206517086U true CN206517086U (en) | 2017-09-22 |
Family
ID=59862728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621467887.6U Expired - Fee Related CN206517086U (en) | 2016-12-29 | 2016-12-29 | A kind of self-adaption constant power charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206517086U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979165A (en) * | 2017-12-29 | 2018-05-01 | 东莞市港奇电子有限公司 | A kind of power supply circuit for equipment In Oil Service Station |
| CN110086233A (en) * | 2019-06-01 | 2019-08-02 | 深圳市永航新能源技术有限公司 | A kind of power adaptive charging method and charging unit |
| CN110224593A (en) * | 2019-06-21 | 2019-09-10 | 桂林电子科技大学 | With the adaptive maximum power tracing circuit of internal resistance and DC-DC booster circuit |
| CN113346594A (en) * | 2021-06-29 | 2021-09-03 | 阳光电源股份有限公司 | Charging circuit, control method of charging circuit, controller of charging circuit and charging pile |
-
2016
- 2016-12-29 CN CN201621467887.6U patent/CN206517086U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979165A (en) * | 2017-12-29 | 2018-05-01 | 东莞市港奇电子有限公司 | A kind of power supply circuit for equipment In Oil Service Station |
| CN110086233A (en) * | 2019-06-01 | 2019-08-02 | 深圳市永航新能源技术有限公司 | A kind of power adaptive charging method and charging unit |
| CN110086233B (en) * | 2019-06-01 | 2021-09-03 | 深圳市永航新能源技术有限公司 | Power self-adaptive charging method and charging device |
| CN110224593A (en) * | 2019-06-21 | 2019-09-10 | 桂林电子科技大学 | With the adaptive maximum power tracing circuit of internal resistance and DC-DC booster circuit |
| CN110224593B (en) * | 2019-06-21 | 2023-12-01 | 桂林电子科技大学 | Maximum power tracking circuit with internal resistance self-adaption and DC-DC boost circuit |
| CN113346594A (en) * | 2021-06-29 | 2021-09-03 | 阳光电源股份有限公司 | Charging circuit, control method of charging circuit, controller of charging circuit and charging pile |
| CN113346594B (en) * | 2021-06-29 | 2024-02-09 | 阳光电源股份有限公司 | Charging circuit, control method of charging circuit, controller of charging circuit and charging pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 Termination date: 20211229 |