CN202737504U - Circuit for automatically identifying load - Google Patents
Circuit for automatically identifying load Download PDFInfo
- Publication number
- CN202737504U CN202737504U CN2012203139900U CN201220313990U CN202737504U CN 202737504 U CN202737504 U CN 202737504U CN 2012203139900 U CN2012203139900 U CN 2012203139900U CN 201220313990 U CN201220313990 U CN 201220313990U CN 202737504 U CN202737504 U CN 202737504U
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- load
- circuit
- charging
- control unit
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- 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
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a circuit for automatically identifying a load, which comprises a load identification unit, an AD conversion module, an MCU control unit, a storage unit, and a charging control switch circuit, wherein the load identification unit is used for identifying the model of a load and is connected with the load; the AD conversion module carries out analog-to-digital conversion on signals outputted by the load identification unit and is connected with the load identification unit; the MCU control unit generates a charging control instruction and is connected with the AD conversion module; the storage unit stores charging parameters of each corresponding load model and is connected with the MCU control unit; and the charging control switch circuit is connected with a portable power source and the MCU control unit. According to the circuit disclosed by the utility model, the purpose of automatically identifying the load can be realized, such that the subsequent power output of the portable power source can be adjusted to be matched with the battery of the load; and simultaneously, the storage unit can store models of a large number of digital products and information of the optimal charging voltage and charging current, charging different digital products can be met and universality of the portable power source is improved.
Description
Technical field
The utility model belongs to the load recognition technology, be specifically related to a kind of automatic identification circuit for digital product load institute setting batteries such as identification portable terminal, Portable computer equipments, can be widely used in portable power source is identified rear charging to the load battery occasion.
Background technology
Along with making rapid progress of digital technology and function, increasing digital product (such as mobile phone, panel computer, digital camera, video camera, PDA, MP3, MP4, GPS etc.) enters in the middle of our life, to satisfy the growing demand of people's logarithmic code technology with difference in functionality supplier's form.
Existing all types of digital product adopts the power-supply battery of standard configuration more, as adopting polymer battery or lithium ion battery.The charging output voltage that present on the market portable power source generally adopts mostly is fixed mode, is 3.7V such as charging voltage, and the charging direct current is 5V.In the reality, because the differences such as the power consumption of every class load battery, manufacturer, the load battery of every class digital product is different on charging voltage, charging current, if institute's its charge parameter of employing portable power source and load battery itself have charging voltage, charging current not to be complementary most, cause easily the load battery of digital product to be not fully filled or rear service time of the short problem of charging, require special brand for some, even possibly can't charge.
The existing risk of above technology, because existing portable power source for the load battery is charged to a great extent, the load battery is not identified in configuration automatically, the charge parameter of portable power source output is adjusted to the scheme of the optimum charge parameter of matched load battery.
The utility model content
For existing deficiency in the above-mentioned prior art, the utility model provides a kind of automatic identification load circuit, and the utility model has been realized automatic identification load signal and load battery charge parameter.
Automatically identify load circuit, comprising:
Be used for the load recognition unit of identification load model, link to each other with load;
Load recognition unit output signal is carried out analog-to-digital AD modular converter, link to each other with the load recognition unit;
Generate the MCU control unit of charging control command, link to each other with the AD modular converter;
Store the memory cell of corresponding each load model charge parameter, link to each other with the MCU control unit.
Preferably, the utility model is automatically identified load circuit and is also comprised charging control commutation circuit, be connected with portable power source, MCU control unit, the control control command that receives and generate according to the MCU control unit is adjusted to charging voltage, charging current with load battery coupling with the output power of portable power source, and the load battery is charged.
Concrete, described MCU control unit is comprised of power source special managing chip and peripheral circuit thereof.
Described load recognition unit connects load by USB interface, and described USB interface adopts the non-standard USB interface of universal standard USB interface or compatibility standard USB output type.
Described charging control commutation circuit is provided with the PWM modulation circuit, the charging control command of MCU control unit output is a pulse-modulated signal (PWM), the PWM modulation circuit is modulated the output power of portable power source output according to this pulse-modulated signal, to switch to charging voltage, the charging current of mating with the load battery.
Concrete, described PWM modulation circuit is connected with electricity interface among the described USB, to export charging power.
The utility model is created and is had the following advantages compared to existing technology and beneficial effect:
In the utility model, load model recognition unit is connected with load, identify the load model, the recognition result signal of load model recognition unit output is received by the MCU control unit after the AD modular converter is converted to digital signal, the MCU control unit is according to the digital recognition result signal that receives, search for to memory cell, comparison, find out the charge parameter that mates with this load model and (comprise charging voltage, charging current), and generation charging control command output, arrive this, realized the purpose of automatic identification load, adjusted to the load battery with the electric power output of satisfying the subsequent movement power supply and mate.
Simultaneously, memory cell can be stored the model of a large amount of digital products, optimum charging voltage and charging current information, satisfies different digital products is charged, and has improved the versatility of portable power source.
Description of drawings
Fig. 1 is the structure principle chart that the utility model is identified load circuit automatically.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the execution mode that the utility model is created is not limited to this.
As shown in Figure 1, automatically identify load circuit, comprising:
Be used for the load recognition unit of identification load model, link to each other with load;
Load recognition unit output signal is carried out analog-to-digital AD modular converter, link to each other with the load recognition unit;
Generate the MCU control unit of charging control command, link to each other with the AD modular converter;
Store the memory cell of corresponding each load model charge parameter, link to each other with the MCU control unit;
Charging control commutation circuit, be connected with portable power source, MCU control unit, the control control command that receives and generate according to the MCU control unit is adjusted to charging voltage, charging current with load battery coupling with the output power of portable power source, and the load battery is charged.
Concrete, described MCU control unit is comprised of power source special managing chip (EM78P182 chip) and peripheral circuit thereof.
Described load recognition unit connects load by USB interface, and described USB interface adopts the non-standard USB interface of universal standard USB interface or compatibility standard USB output type.
Described charging control commutation circuit is provided with the PWM modulation circuit, the charging control command of MCU control unit output is a pulse-modulated signal (PWM), the PWM modulation circuit is modulated the output power of portable power source output according to this pulse-modulated signal, to switch to charging voltage, the charging current of mating with the load battery.
Concrete, described PWM modulation circuit is connected with electricity interface among the described USB, to export charging power.
Above-described embodiment is the better execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection range of the present utility model.
Claims (5)
1. automatically identify load circuit, it is characterized in that, comprising:
Be used for the load recognition unit of identification load model, link to each other with load;
Load recognition unit output signal is carried out analog-to-digital AD modular converter, link to each other with the load recognition unit;
Generate the MCU control unit of charging control command, link to each other with the AD modular converter;
Store the memory cell of corresponding each load model charge parameter, link to each other with the MCU control unit.
2. automatic identification load circuit according to claim 1 is characterized in that: also comprise charging control commutation circuit, be connected with portable power source, MCU control unit.
3. automatic identification load circuit according to claim 2, it is characterized in that: described MCU control unit is comprised of power source special managing chip and peripheral circuit thereof.
4. automatic identification load circuit according to claim 3, it is characterized in that: the load recognition unit connects load by USB interface.
5. automatic identification load circuit according to claim 4 is characterized in that: described charging control commutation circuit is provided with the PWM modulation circuit, and described PWM modulation circuit is connected with electricity interface in the described USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203139900U CN202737504U (en) | 2012-06-29 | 2012-06-29 | Circuit for automatically identifying load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203139900U CN202737504U (en) | 2012-06-29 | 2012-06-29 | Circuit for automatically identifying load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202737504U true CN202737504U (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203139900U Expired - Fee Related CN202737504U (en) | 2012-06-29 | 2012-06-29 | Circuit for automatically identifying load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202737504U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720659A (en) * | 2016-04-21 | 2016-06-29 | 福建工程学院 | General electric bicycle intelligent charger based on ARM and general electric bicycle intelligent charging method based on ARM |
| US9753512B2 (en) | 2014-06-11 | 2017-09-05 | Asustek Computer Inc. | Electronic device and method for recognizing output power of power supply thereof |
| CN112810547A (en) * | 2020-12-31 | 2021-05-18 | 宁波宝贝第一母婴用品有限公司 | Power supply control device and method for supplying power to child seat |
-
2012
- 2012-06-29 CN CN2012203139900U patent/CN202737504U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9753512B2 (en) | 2014-06-11 | 2017-09-05 | Asustek Computer Inc. | Electronic device and method for recognizing output power of power supply thereof |
| CN105720659A (en) * | 2016-04-21 | 2016-06-29 | 福建工程学院 | General electric bicycle intelligent charger based on ARM and general electric bicycle intelligent charging method based on ARM |
| CN105720659B (en) * | 2016-04-21 | 2019-07-09 | 福建工程学院 | Electric bicycle universal intelligent charger and its method based on ARM |
| CN112810547A (en) * | 2020-12-31 | 2021-05-18 | 宁波宝贝第一母婴用品有限公司 | Power supply control device and method for supplying power to child seat |
| CN112810547B (en) * | 2020-12-31 | 2023-01-20 | 宁波宝贝第一母婴用品有限公司 | Power supply control device and method for supplying power to child seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150629 |
|
| EXPY | Termination of patent right or utility model |