CN202306199U - Digital power supply and circuit board - Google Patents
Digital power supply and circuit board Download PDFInfo
- Publication number
- CN202306199U CN202306199U CN2011202687829U CN201120268782U CN202306199U CN 202306199 U CN202306199 U CN 202306199U CN 2011202687829 U CN2011202687829 U CN 2011202687829U CN 201120268782 U CN201120268782 U CN 201120268782U CN 202306199 U CN202306199 U CN 202306199U
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- China
- Prior art keywords
- interface
- digital power
- digital
- control module
- pwm control
- 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.)
- Expired - Lifetime
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control
Abstract
The utility model discloses a digital power supply and a circuit board. The digital power supply comprises a pulse width modulation (PWM) control unit and one or more drive units, wherein the drive units are connected with the PWM control unit, and the PWM control unit is used for processing inputted signals and outputting digital signals obtained after processing to the drive units, and the drive units are used for driving a field effect transistor according to the digital signals processed by the PWM control unit. According to the utility model, the digital power supply has smaller volume and lower cost, and is reduced in the using threshold.
Description
Technical field
The utility model relates to power supply control field, in particular to a kind of digital power and wiring board.
Background technology
Current, power technology adopts the simulating signal control technology to realize mostly, and the advantage of simulating signal control is: circuit is simple, and output is stable, and cost is low, and the shortcoming that exists is: can not control flexibly, efficient is low.Digital power has stable, the treatment effeciency advantages of higher of online programmable ability, performance accuracy height and reliability; But the cost of realizing at present is higher; And need carry out corresponding PCB placement-and-routing to the circuit of digital power inside to different application scenarios; Thereby cause the cost of digital power high, and use the high problem of door.
The utility model content
The fundamental purpose of the utility model is to provide a kind of digital power and wiring board, and is high with digital power cost in the solution prior art, and uses the high problem of door.
According to the one side of the utility model, a kind of digital power is provided, this digital power comprises: the pulse width modulation (PWM) control module; And one or more driver elements; Said driver element is connected with said PWM control module, wherein, and said PWM control module; Be used for the signal of input is handled, and the digital signal that will obtain after will handling outputs to said driver element; Said driver element is used for according to the digital signal Driving Field effect transistor after the said PWM control module processing.
Preferably, said PWM control module comprises: analog to digital converter is used for converting the output analog voltage signal that samples into digital signal; Storer is used for storage algorithm; Interface is used to the interface that provides external device (ED) to be connected with said digital power, and said interface also is used to receive the editor that algorithm carried out that said storer is stored; Controller is used for according to the algorithm of said storer said digital signal being handled.
Preferably, said driver element comprises: the mos field effect transistor mosfet driver.
Preferably, said mosfet driver is used to provide one or more voltage output, and said one or more voltage output can be by pre-configured.
Preferably, said interface is power supply IO interface and/or serial line interface.
Preferably, said power supply IO interface is used for the power supply that need obtain after power supply that the CC system need carry out voltage transitions and the conversion.
Preferably, said serial line interface is: 12C interface, PMBUS interface or GPIO interface.
Preferably, said PWM control module also comprises: compensator is used for according to each parametric compensation value of digital signal employed each parameter of said algorithm being compensated.
Preferably, said digital power is integrated in the module.
According to the utility model on the other hand, a kind of wiring board is provided, this wiring board comprises above-mentioned each described digital power.
Through the utility model, the digital power of employing comprises: PWM control module and driver element, can be fixed up the PCB placement-and-routing in the digital power module; This digital power is integrated in PWM control module and driver element in the digital power module; Make an incorporate digital power module, install in the circuit board during use, need not pay close attention to the inner circuit PCB placement-and-routing of digital power; Compare with existing digital power; Have better advantage, make digital power be applicable to various application scenario easily, reduced the use door of digital power.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the structured flowchart according to the digital power of the utility model embodiment;
Fig. 2 is the structured flowchart according to the digital power of the utility model preferred embodiment;
Fig. 3 is the structured flowchart according to the wiring board of the utility model embodiment;
Fig. 4 is the structured flowchart according to the digital power module of the utility model preferred embodiment; And
Fig. 5 is the inner structure block diagram according to the PWM control module of the utility model preferred embodiment.
Embodiment
Hereinafter will and combine embodiment to specify the utility model with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
A kind of digital power is provided in the present embodiment; Fig. 1 is the structured flowchart according to the digital power of the utility model embodiment; As shown in Figure 1, this digital power 10 comprises: pulse width modulation (PWM) control module 12, and one or more driver element 14; This driver element 14 is connected with this PWM control module 12, and this time describes in the face of this digital power.
PWM control module 12 be used for the signal of input is handled, and the digital signal that will obtain after will handling outputs to driver element 14;
Driver element 14 is used for according to the digital signal Driving Field effect transistor after 12 processing of this PWM control module.
Through above-mentioned digital power, adopt the integrated of pulse width modulation (PWM) control module and driver element, the PWM control module is handled digital signal, as long as the algorithm in this PWM control module is edited.Preferably; More excellent method when implementing; Be that the digital power of mentioning in present embodiment and the following preferred implementation can be integrated on the module, be integrated into a digital power module, only need by its packing forms module be installed in the circuit board during use with integration of input, output and control pin; Need not carry out PCB placement-and-routing, just can use same module with different application scenarios in many different patterns to the circuit of digital power inside.
Fig. 2 is the structured flowchart according to the digital power of the utility model preferred embodiment; As shown in Figure 2; This digital power 10 comprises: PWM control module 12, and one or more driver element 14, and this driver element 14 is connected wherein with this PWM control module 12; This PWM control module 12 comprises: analog to digital converter 122, storer 124, interface 126 and controller 128 describe in the face of each module in the PWM control module in this digital power down.This PWM control module 12 comprises:
Analog to digital converter 122 is used for converting the output analog voltage signal that samples into digital signal; Storer 124 is used for storage algorithm; Interface 126 is used to the interface that provides external device (ED) to be connected with this digital power, and this interface also is used to receive the editor that algorithm carried out that this storer 124 is stored; Controller 128 is used for according to the algorithm of this storer 124 this digital signal being handled.
Through analog to digital converter 122, storer 124, interface 126 and controller 128 are set in the PWM control module; Use storer 124 and interface 126 to edit algorithm easily; The mode of editor's algorithm can also be that digital power uses interface 126 and external device (ED) to implement; For example, this external device (ED) can be MCU, is used for according to the needs of digital power algorithm being carried out online editing.According to above-mentioned algorithm, 128 pairs of these digital signals of controller are handled, and output to driver element 14 through interface, realize the control of configuration output flexibly.
Preferably, this driver element 14 can comprise: the mos field effect transistor mosfet driver.
When using this driver; More excellent ground can provide one the tunnel or the output of plurality of voltages according to user's needs, wherein; This one or more voltage output can be by pre-configured, and promptly the user can be configured the grade of output voltage flexibly according to the needs of oneself.
When implementing, use power supply IO interface and/or serial line interface as interface 126.Wherein, serial line interface is serial line interfaces such as I2C interface, PMBUS interface, GPIO interface.
Preferably, this PWM control module 12 also comprises: compensator 120 (dotted line among Fig. 2 representes that this module is preferably) is used for according to each parametric compensation value of digital signal employed each parameter of this algorithm being compensated, to improve the precision of out-put supply.For example, error signal, the pulsewidth that driving stage is required drives the length of delay of optimizing output, loop compensation parameter etc.
A kind of wiring board also is provided in the present embodiment, and Fig. 3 is the structured flowchart according to the wiring board of the utility model embodiment, and is as shown in Figure 3, and this wiring board 20 comprises above-mentioned each digital power 10.
Describe below in conjunction with preferred embodiment, the preferred embodiment has combined the foregoing description and preferred implementation.
Fig. 4 is the structured flowchart according to the digital power module of the utility model preferred embodiment; As shown in Figure 4; This digital power module comprises: microprocessor (Micro Control Unit abbreviates MCU as), carry out online programming to digital power module when being used to power on; This MCU can select to be placed on the digital module the inside as required, also can select with digital module independent.Produce pulse-length modulation (Pulse Width Modulation the abbreviates PWM as) control module of control signal; Driver element that links to each other with control signal and external control interface and the IO interface of whole digital power module; Wherein, this control interface can be provided with as the case may be, for example; This control interface PC that is used to transfer perhaps connects a MCU.Make a small modules to this digital power, be installed in easily on user's plate, need flexible configuration, to realize programmable voltage output according to the user with input, output and control pin.
Fig. 5 is the inner structure block diagram according to the PWM control module of the utility model preferred embodiment, and is as shown in Figure 5.This PWM control module adopts analog to digital converter to convert the output voltage signal of sampling into digital signal.Program storage has been stored the control mathematical algorithm of microprocessor, is used to carry out a series of calculating based on the analog to digital converter output valve.These result calculated are some parameters, error signal for example, the pulsewidth that driving stage is required, the length of delay of optimizing to various drivings outputs, and loop compensation parameter.External loop-around no longer needs compensating element, in the digital display circuit.In the production run, the comparison reference of parameter, for example output voltage, output current, temperature limit definite value are stored in the nonvolatile memory, perhaps when system start-up, can download in the data-carrier store.
The digital power module (is for example reserved serial line interface; I2C interface, power management bus PMBUS interface, general input and output (General Purpose Input Output; Abbreviate GPIO as)); The PWM control module links to each other with PC through serial line interface, is used to realize that PC carries out the communication between online programming or PC and the PWM control module to the PWM control module, links to each other with MCU through I2C interface, PMBUS interface, GPIO interface or other serial line interface; Be used to realize that MCU carries out the communication between online programming or MCU and the PWM control module to the PWM control module, to realize system-level flexibly control and diagnosis.PC and MCU need use at the initial stage of exploitation; Be used for programming at demand pairs word power module; After the exploitation maturation, can be in the storer of power module the parameter direct burning of digital power needs, power module is exported according to the good parameter of burning in advance when powering at every turn.
More excellent ground; Driver element adopts metal-oxide half field effect transistor (Metal-Oxide-Semicondutor Field-EffectTransistor; Abbreviate MOSFET as) driver, can link to each other with the PWM control module easily, carry out online programming according to user's needs; One tunnel perhaps more plurality of voltages output is provided, and the output of every road can be according to the electric pressure of user's needs flexible configuration output.
Input interface mainly is the voltage that input need be carried out power source conversion.Output interface is used to export the various electric pressure of user's needs.It can be programmed for output one tunnel or multichannel output according to user's needs.
This preferred embodiment can be controlled the power supply output or the power cutoff output of opening each road flexibly.The opening time and the turn-off time of each road out-put supply are adjustable, are used to the upper and lower electric sequential control that realizes that same power module is not gone the same way and exported.
The PCB placement-and-routing design demand of digital power makes the area of switching node select suitable, the return flow path that reduces gate drive circuit, the return flow path that reduces closed circuit, clean feedback control loop and suitable ground level, just can make the digital power operate as normal.
Be fixed up the PCB placement-and-routing in the digital power module through above-mentioned preferred embodiment; Make the digital power module of an integration; The placement-and-routing that can let the user need not pay close attention in the digital power module just can conveniently use digital power module in different use occasions freely, has reduced the use door of digital power.
Obviously, it is apparent to those skilled in the art that each module of above-mentioned the utility model or each step can realize that they can concentrate on the single circuit arrangement, perhaps are distributed on a plurality of circuit arrangements with general circuit arrangement.Like this, the utility model is not restricted to any specific hardware and software combination.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. digital power is characterized in that comprising: pulse width modulation (PWM) control module, and one or more driver element, and said driver element is connected with said PWM control module, wherein,
Said PWM control module be used for the signal of input is handled, and the digital signal that will obtain after will handling outputs to said driver element;
Said driver element is used for according to the digital signal Driving Field effect transistor after the said PWM control module processing.
2. digital power according to claim 1 is characterized in that, said PWM comprises:
Analog to digital converter is used for converting the output analog voltage signal that samples into digital signal;
Storer is used for storage algorithm;
Interface is used to the interface that provides external device (ED) to be connected with said digital power, and said interface also is used to receive the editor that algorithm carried out that said storer is stored;
Controller is used for according to the algorithm of said storer said digital signal being handled.
3. digital power according to claim 1 is characterized in that, said driver element comprises: the mos field effect transistor mosfet driver.
4. digital power according to claim 3 is characterized in that, said mosfet driver is used to provide one or more voltage output, and said one or more voltage output can be by pre-configured.
5. digital power according to claim 2 is characterized in that, said interface is power supply IO interface and/or serial line interface.
6. digital power according to claim 5 is characterized in that, said power supply IO interface is used for the power supply that need obtain after power supply that the CC system need carry out voltage transitions and the conversion.
7. digital power according to claim 5 is characterized in that, said serial line interface is: 12C interface, PMBUS interface or GPIO interface.
8. digital power according to claim 1 is characterized in that, said PWM control module also comprises: compensator is used for according to each parametric compensation value of digital signal employed each parameter of said algorithm being compensated.
9. according to each described digital power in the claim 1 to 8, it is characterized in that said digital power is integrated in the module.
10. a wiring board is characterized in that, comprises each described digital power in the claim 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202687829U CN202306199U (en) | 2011-07-27 | 2011-07-27 | Digital power supply and circuit board |
| PCT/CN2012/073667 WO2012152160A1 (en) | 2011-07-27 | 2012-04-09 | Digital power supply and circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202687829U CN202306199U (en) | 2011-07-27 | 2011-07-27 | Digital power supply and circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202306199U true CN202306199U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202687829U Expired - Lifetime CN202306199U (en) | 2011-07-27 | 2011-07-27 | Digital power supply and circuit board |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202306199U (en) |
| WO (1) | WO2012152160A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112698708A (en) * | 2020-11-27 | 2021-04-23 | 深圳微步信息股份有限公司 | Digital power supply mainboard and terminal equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3282532B2 (en) * | 1997-02-18 | 2002-05-13 | トヨタ自動車株式会社 | Load drive |
| US6567922B1 (en) * | 2000-04-21 | 2003-05-20 | Hsiu-Mei Feng | Pulse type activating system for power supply |
| CN101295203A (en) * | 2007-04-28 | 2008-10-29 | 佛山市顺德区顺达电脑厂有限公司 | Creepage eliminating method |
| CN201138757Y (en) * | 2007-11-09 | 2008-10-22 | 樊平 | Converting device for charging power supply |
| CN100499329C (en) * | 2007-11-30 | 2009-06-10 | 中国航天科工集团第三总体设计部 | Switch power source digital controller with digital communication function |
| CN101257273B (en) * | 2008-03-07 | 2010-11-24 | 张志贤 | DC electric machine drive apparatus with power supply by second lithium batteries |
| CN102025276B (en) * | 2010-11-11 | 2013-07-31 | 东南大学 | Clock domain crossing controller of digital control switch power supply and control method thereof |
| CN102118516A (en) * | 2011-01-13 | 2011-07-06 | 中兴通讯股份有限公司 | Control method and system for output voltage of power management chip |
-
2011
- 2011-07-27 CN CN2011202687829U patent/CN202306199U/en not_active Expired - Lifetime
-
2012
- 2012-04-09 WO PCT/CN2012/073667 patent/WO2012152160A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112698708A (en) * | 2020-11-27 | 2021-04-23 | 深圳微步信息股份有限公司 | Digital power supply mainboard and terminal equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012152160A1 (en) | 2012-11-15 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |