CN106685008A - Adapter and power supply method - Google Patents
Adapter and power supply method Download PDFInfo
- Publication number
- CN106685008A CN106685008A CN201710064372.4A CN201710064372A CN106685008A CN 106685008 A CN106685008 A CN 106685008A CN 201710064372 A CN201710064372 A CN 201710064372A CN 106685008 A CN106685008 A CN 106685008A
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- CN
- China
- Prior art keywords
- power supply
- voltage
- control chip
- integrated control
- module
- 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.)
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Classifications
-
- 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33592—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
-
- 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
Abstract
In the adapter and the power supply method, the adapter comprises a power supply primary side, a power supply secondary side and an integrated control chip, the power supply primary side processes the alternating current input voltage of the power supply to be a high-voltage direct current and provides the high-voltage direct current to the integrated control chip, after the integrated control chip obtains the high-voltage direct current, the voltage of the power supply primary side is controlled to be converted to the power supply secondary side, a synchronous rectification module internally arranged is controlled to perform synchronous rectification of the voltage converted to the power supply secondary side, the power supply secondary side processes the voltage after the synchronous rectification through the integrated control chip to the direct voltage, the direct voltage is outputted to the integrated control chip, and the integrated control chip regulates the direct voltage outputted by the power supply secondary side based on the power voltage required by the external system. The adapter and power supply method simplifies the modules of the power supply primary side and the power supply secondary side and integrates the control of the power supply primary side and the power supply secondary side into the integrated control chip so as to simplify the structure of the adapter and reduce the area of a circuit board.
Description
Technical field
The present invention relates to automatic control technology field, more particularly to a kind of adapter and method of supplying power to.
Background technology
Adapter is a kind of interface convertor, and predominantly electronic equipment charges used.
Current adapter is made up of control circuit, specifically, control circuit includes two grades of power supply one-level side and power supply
Side, power supply one-level side is referred to as input voltage to the circuit of transformer primary side, and two grades of sides of power supply are referred to as transformer secondary and arrive
The circuit of output port.And the two grades of sides in power supply one-level side and power supply include the various circuit groups for realizing difference in functionality respectively
Part, the function of adapter is realized by the cooperation of each component.
By the above as can be seen that the control circuit of existing adapter is complex, because circuit unit is more, because
This is also required to greater area of circuit board, limits adapter towards the development in the direction of miniaturization.
The content of the invention
In view of this, the invention provides a kind of adapter and method of supplying power to, it is used to solve the control of existing adapter
Circuit is complex, because circuit unit is more, it is necessary to greater area of circuit board, limits adapter towards the side of miniaturization
To development technical problem, its technical scheme is as follows：
A kind of adapter, including：Power supply primary side, power supply secondary side and integrated control chip；
The power supply primary side, for the AC-input voltage of power supply to be processed into high voltage direct current, and by the high pressure
Direct current is supplied to the integrated control chip；
The integrated control chip, for after the high voltage direct current is obtained, controlling the electricity of the power supply primary side
Pressure is transformed into the power supply secondary side, and controls the synchronous rectification module of inside to enter the voltage for being transformed into the power supply secondary side
Row synchronous rectification；
The power supply secondary side, for the voltage after the integrated control chip synchronous rectification to be processed into DC voltage,
And give the integrated control chip by the direct voltage output；
The integrated control chip, is additionally operable to adjust the power supply secondary side based on the supply voltage required for external system
The DC voltage of output.
Wherein, the power supply primary side includes：AC-input voltage to the power supply filters the wave filter of noise；With institute
Wave filter is stated to be connected, the first rectifier that the AC-input voltage rectification after noise is high voltage direct current will be filtered；And, with institute
State the connected transformer primary side of the first rectifier；
The power supply secondary side includes：Transformer secondary；It is connected with the transformer secondary, will be through the integrated control core
The second rectifier of voltage commutation after piece is synchronously whole into the DC voltage；And, be connected with second rectifier
One switch module.
Wherein, the integrated control chip is provided with synchronous rectification lock level pin, and the synchronous rectification module is synchronous with described
Rectification lock level pin is connected, and the synchronous rectification lock level pin is connected between the transformer secondary and second rectifier；Its
In, the synchronous rectification module is used to carry out together the voltage that the transformer secondary is exported by synchronous rectification lock level pin
Step rectification；
The integrated control chip is provided with breaker level pin, the breaker level pin and the first switch module phase
Even；Wherein, whether the first switch module is used for entering working condition by adapter described in breaker level foot control system；
The integrated control chip also includes：Power module, second switch module, synchronous rectification module, voltage-regulation mould
Block, communication module and control module；
The integrated control chip is provided with power input pin, and the power input pin is connected with the power module, institute
Power input pin is stated to be connected between first rectifier and the transformer primary side；Wherein, first rectifier rectification
Voltage afterwards can supply the power module by the power input pin, to cause that the power module is the integrated control
Coremaking piece provides supply voltage and enters mode of operation；
The integrated control chip is provided with power pin, and the power pin is connected with the second switch module, the work(
Rate pin is connected between first rectifier and the transformer primary side；Wherein, the second switch module is used for by control
The opening of the power pin is made with shut-off frequency so that the voltage output of the power supply primary side is to the power supply secondary side；
The integrated control chip is provided with feedback control pin, and the feedback control pin connects with the VRM Voltage Regulator Module
Connect, the feedback control pin is connected between second rectifier and the first switch module；Wherein, the voltage-regulation
Module is used to be exported to the output voltage of external system by first switch module described in feedback control foot control system；
The integrated control chip is provided with communication pin, and the communication pin is connected with the communication module；Wherein, it is described logical
News module is communicated by the communication pin with external system, at least for obtaining the external system being connected with the adapter
Required supply voltage；
Control module, the working condition for controlling modules in the integrated control chip.
Preferably, the integrated control chip also includes：
The over-voltage protection module being connected with feedback control pin；Wherein, the over-voltage protection module is used for institute
Stating adapter carries out overvoltage protection.
Preferably, the integrated control chip also includes：
The overcurrent protection module being connected with feedback control pin；Wherein, the overcurrent protection module is used for institute
Stating adapter carries out overcurrent protection.
Preferably, the integrated control chip also includes：Linear compensation module；
The integrated control chip is provided with linear compensation pin, the linear compensation pin and the linear compensation module phase
Connect, and the linear compensation pin is connected between the wave filter and first rectifier；Wherein, the linear compensation module
For by the stabilized input voltage of first rectifier in the range of pre-set interval.
Preferably, the integrated control chip also includes：Temperature protection module；
The integrated control chip is provided with protection pin, and the protection pin is connected with the temperature protection module, and described
Protection pin is connected between first rectifier and the transformer primary side；Wherein, the temperature protection module is used for institute
Stating adapter carries out temperature protection.
A kind of method of supplying power to, is applied to adapter, and the adapter includes power supply primary side, power supply secondary side and integrated control
Coremaking piece, methods described includes：
The AC-input voltage of power supply is processed into high voltage direct current by the power supply primary side, and by the high voltage direct current
It is supplied to the integrated control chip；
The integrated control chip controls the voltage conversion of the power supply primary side after the high voltage direct current is obtained
To the power supply secondary side, and the synchronous rectification module of inside is controlled to synchronize the voltage for being transformed into the power supply secondary side
Rectification；
Voltage after the integrated control chip synchronous rectification is processed into DC voltage by the power supply secondary side, and by institute
Direct voltage output is stated to the integrated control chip；
Supply voltage required for the integrated control chip is based on external system adjusts the power supply secondary side output
The DC voltage.
Wherein, the AC-input voltage of power supply is processed into high voltage direct current by the power supply primary side, including：
The power supply primary side is filtered to the AC-input voltage of the power supply, in filtering the AC-input voltage
Noise；
The AC-input voltage rectification after noise will be filtered for high voltage direct current.
Preferably, the method for supplying power to also includes：
When the integrated control chip receives the external system there is the signal of swinging load, to the adaptation
Device carries out overcurrent protection or overvoltage protection.
Above-mentioned technical proposal has the advantages that：
In the adapter and method of supplying power to of present invention offer, the AC-input voltage of power supply is processed into height by power supply primary side
Pressure direct current, and high voltage direct current is supplied to integrated control chip, integrated control chip is controlled after high voltage direct current is obtained
The voltage conversion of power supply primary side processed controls the synchronous rectification module of inside to being transformed into power supply secondary side to power supply secondary side
Voltage synchronize rectification, the voltage after integrated control chip synchronous rectification is processed into DC voltage by power supply secondary side, and
Supply voltage adjustment power supply required for being based on external system to integrated control chip, integrated control chip direct voltage output
The DC voltage of secondary side output.Adapter and method of supplying power to that the present invention is provided, simplify power supply primary side and power supply are secondary
The component of side, and the control of power supply primary side and power supply secondary side will be incorporated into inside integrated control chip, this causes to fit
The component count of orchestration is reduced, and structure is simplified, and reduces the area of circuit board.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the structural representation of adapter provided in an embodiment of the present invention；
Fig. 2 is the structural representation of an instantiation of adapter provided in an embodiment of the present invention；
The particular circuit configurations figure of adapters of the Fig. 3 shown in Fig. 2；
Fig. 4 is the schematic flow sheet of method of supplying power to provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
A kind of adapter is the embodiment of the invention provides, Fig. 1 is referred to, the structural representation of the adapter is shown, can
To include：Power supply primary side 101, power supply secondary side 102 and integrated control chip 103.Wherein：
Power supply primary side 101, for the AC-input voltage of power supply to be processed into high voltage direct current, and by high voltage direct current
It is supplied to integrated control chip.
Integrated control chip 103, for after high voltage direct current is obtained, controlling the voltage conversion of power supply primary side to electric
Source secondary side, and control the synchronous rectification module of inside to synchronize rectification to the voltage for being transformed into power supply secondary side.
Power supply secondary side 102, for the voltage after integrated control chip synchronous rectification to be processed into DC voltage, and will be straight
Stream voltage output gives integrated control chip.
Integrated control chip 103, is additionally operable to based on the supply voltage adjustment power supply secondary side output required for external system
DC voltage.
The AC-input voltage of power supply is processed into high voltage direct current by the adapter that the present invention is provided, power supply primary side, and
High voltage direct current is supplied to integrated control chip, after high voltage direct current is obtained, control power supply is once for integrated control chip
The voltage conversion of side to power supply secondary side, and control inside synchronous rectification module the voltage for being transformed into power supply secondary side is carried out
Voltage after integrated control chip synchronous rectification is processed into DC voltage by synchronous rectification, power supply secondary side, and by DC voltage
Export to integrated control chip, the supply voltage adjustment power supply secondary side required for integrated control chip is based on external system is exported
DC voltage.The embodiment of the present invention simplifies the component of power supply primary side and power supply secondary side, and will to power supply primary side and
The control of power supply secondary side is incorporated into inside integrated control chip, and this causes that the component count of adapter is reduced, and structure is obtained
Simplification, reduces the area of circuit board.
Refer to Fig. 2 and Fig. 3, Fig. 2 show that the structure of an instantiation of adapter provided in an embodiment of the present invention is shown
It is intended to, the particular circuit configurations figure of adapters of the Fig. 3 shown in Fig. 2 can include：Power supply primary side 201, power supply secondary side
202 and integrated control chip 203.
Wherein, power supply primary side 201 can include：Wave filter 2011, the first rectifier being connected with wave filter 2011
2012, and, the transformer primary side 2013 being connected with the first rectifier 2012.
Specifically, the AC-input voltage of power supply is filtered noise by wave filter 2011.First rectifier 2012 will be filtered makes an uproar
AC-input voltage after sound is rectified into high voltage direct current.
Wherein, power supply secondary side 202 can include：Transformer secondary 2021, second be connected with transformer secondary 2021
Rectifier 2022, and, the first switch module 2023 being connected with the second rectifier 2022.
Wherein, integrated control chip 203 can include：Power module 2031, second switch module 2032, synchronous rectification mould
Block 2033, VRM Voltage Regulator Module 2034, communication module 2035 and control module 2036.Specifically：
Integrated control chip 203 is provided with power input pin VCC pin, power input pin VCC pin and power module
2031 are connected, and power input pin VCC pin are connected between the first rectifier 2012 and transformer primary side 2013.Wherein,
High voltage direct current after the rectification of one rectifier 2012 can supply power module 2031 by power input pin VCC pin, so that
It is that integrated control chip 203 provides supply voltage and enters mode of operation to obtain power module 2031.
Integrated control chip 203 is provided with power pin Drain/source pin, power pin and second switch module 2032
It is connected, and power pin is connected between the first rectifier 2012 and transformer primary side 2013.Wherein, second switch module 2032 is used
In by controlling the opening of power pin with shut-off frequency so that the voltage output of power supply primary side 201 is to power supply secondary side 202.
Integrated control chip 203 is provided with synchronous rectification lock level pin SRpin, and pin SR pin are whole with synchronous for synchronous rectification lock level
Flow module 2033 be connected, and synchronous rectification lock level pin SR pin be connected to the rectifier 2022 of transformer secondary 2021 and second it
Between.Wherein, synchronous rectification module 2033 is used for the electricity exported to transformer secondary 2021 by synchronous rectification lock level pin SR pin
Pressure carries out synchronous rectification.
Integrated control chip 203 is provided with breaker level pin Pmos pin, breaker level pin and first switch module 2023
It is connected.Wherein, whether first switch module 2023 is used for entering working condition by breaker level foot control adapter.
Integrated control chip 203 is provided with feedback control pin FB Pin, feedback control pin and the phase of VRM Voltage Regulator Module 2034
Connect, and feedback control pin is connected between the second rectifier 2022 and first switch module 2023.Wherein, VRM Voltage Regulator Module
2034 are used to control foot control first switch module 2023 to export to the output voltage of external system by feedback.
Integrated control chip 203 is provided with communication pin CC Pin, and communication pin is connected with communication module 2035.Wherein, communicate
Module 2035 is communicated by communicating pin with external system, required for the external system being at least connected with adapter for acquisition
Supply voltage.
Control module 2036, the working condition for controlling modules in integrated control chip.
Process of the above-mentioned adapter to external sys-tems is given below：
The wave filter 2011 of power supply primary side 201 is by the noise filtering in the AC-input voltage of power supply, the first rectifier
2012 AC-input voltages that will be filtered after noise are rectified into same-phase first, are then rectified into high voltage direct current, and by high pressure
Direct current is supplied to the power module 2031 of integrated control chip 203.Wherein, wave filter 2011 can be electromagnetic interface filter.
After the power module 2031 of integrated control chip 203 obtains high voltage direct current, control module 2036 enters Working mould
Formula, second switch module 2032 produces switching after the signal for receiving the entrance mode of operation of control module 2036, by becoming
The voltage conversion of depressor control power supply primary side 201 controls synchronous rectification module 2033 pairs to be transformed into power supply secondary side 202
The voltage of power supply secondary side synchronizes rectification.Wherein, power module 2031 can be VCC reference power supplies, control module 2036
Can be PWM controller, after VCC reference power supplies obtain the burning voltage of high voltage direct current, PWM controller can be driven to enter work
Pattern.
Second rectifier 2022 of power supply secondary side 202 is synchronous by synchronous rectification module in integrated control chip 203 2033
Direct voltage output is given integrated control chip 203 by the voltage commutation after rectification into DC voltage.
DC voltage is first converted to 5V by the VRM Voltage Regulator Module 2034 in integrated control chip 203, in voltage-stablizer 2037
Portion produces work partial pressure, power supply secondary side 202 is carried out inner working.Control module 2036 in integrated control chip 203 is led to
Cross communication module 2035 and receive voltage signal needed for external system, control voltage adjustment module 2034 is based on required for external system
Supply voltage (such as 5V/9V/15V/20V) control voltage adjustment module 2034 output voltage, so as to by the voltage after adjustment
It is supplied to external system.
Specifically, when needing to be powered external system, the first switch module 2023 of power supply secondary side 202 is controlled
Breaker level pin open, with cause adapter enter working condition, in working order under, integrated control chip 203 pass through second
The opening of the control power pin of switch module 2032 and shut-off frequency, to cause the voltage output of power supply primary side secondary to power supply
Side, when transformer secondary output has voltage, the opening and shut-off frequency of control synchronous rectification lock level pin, with by synchronous rectification
Module 2033 synchronizes rectification to the power supply that transformer secondary is exported, based on voltage needed for external system to VRM Voltage Regulator Module
2034 output voltage is adjusted and controls pin to export by feedback, to cause first switch module 2023 by the electricity after adjustment
Pressure is exported to external system by supply lines.
In addition, integrated control chip 203 can also include with the feedback overcurrent protection module 2038 that is connected of control pin and with
The connected overvoltage protective module 2039 of feedback control pin.There is swinging load when integrated control chip receives external system
During signal, control module 2036 judges to carry out overcurrent protection or overvoltage protection to adapter, through judging, if necessary to adaptation
Device carries out overcurrent protection, then carry out overcurrent protection to adapter using overcurrent protection module 2038, if necessary to enter to adapter
Row overvoltage protection, then carry out overvoltage protection using overvoltage protective module 2039 to adapter.
Preferably, integrated control chip 203 can also include linear compensation module.Specifically, integrated control chip 203 sets
Linear compensation pin is equipped with, linear compensation pin is connected with linear compensation module, and linear compensation pin is connected to wave filter 2011 and
Between one rectifier 2012.Wherein, linear compensation module is used for the stabilized input voltage of the first rectifier in pre-set interval model
In enclosing.
Preferably, integrated control chip 203 can also include temperature protection module.Specifically, integrated control chip 203 sets
Protection pin is equipped with, protection pin is connected with temperature protection module, and protection pin is connected to the first rectifier 2012 and transformer primary side
Between 2013.Wherein, temperature protection module is used to carry out temperature protection to adapter.
In adapter provided in an embodiment of the present invention, the AC-input voltage of power supply is processed into straightening high by power supply primary side
Stream electricity, and high voltage direct current is supplied to integrated control chip, integrated control chip is after high voltage direct current is obtained, and control is electric
The voltage conversion of source primary side controls internal synchronous rectification module to being transformed into the electricity of power supply secondary side to power supply secondary side
Pressure carries out synchronous rectification, and the voltage after integrated control chip synchronous rectification is processed into DC voltage by power supply secondary side, and will be straight
Supply voltage adjustment power supply required for stream voltage output is based on external system to integrated control chip, integrated control chip is secondary
The DC voltage of side output.The embodiment of the present invention simplifies the component of power supply primary side and power supply secondary side, and will be to power supply one
The control of secondary side and power supply secondary side is incorporated into inside integrated control chip, and this causes that the component count of adapter is reduced, knot
Structure is simplified, and reduces the area of circuit board.
The embodiment of the present invention additionally provides a kind of method of supplying power to, and the method can be applied to the suitable of any of the above-described embodiment offer
Orchestration, the adapter can include power supply primary side, power supply secondary side and integrated control chip, and the method for supplying power to can include：
Step S401：The AC-input voltage of power supply is processed into high voltage direct current by power supply primary side, and by HVDC
Electricity is supplied to integrated control chip.
Wherein, the AC-input voltage of power supply is processed into high voltage direct current by power supply primary side, including：Power supply primary side pair
The AC-input voltage of power supply is filtered, and filters the noise in AC-input voltage；The input electricity of the exchange after noise will be filtered
Repoussage stream is high voltage direct current.
Step S402：Integrated control chip controls the voltage conversion of power supply primary side to arrive after high voltage direct current is obtained
Power supply secondary side, and control the synchronous rectification module of inside to synchronize rectification to the voltage for being transformed into power supply secondary side.
Step S403：Voltage after integrated control chip synchronous rectification is processed into DC voltage by power supply secondary side, and will
Direct voltage output gives integrated control chip.
Step S404：Supply voltage required for integrated control chip is based on external system adjusts the output of power supply secondary side
DC voltage.
Preferably, method of supplying power to provided in an embodiment of the present invention can also include：Described in being received when integrated control chip
When external system has the signal of swinging load, overcurrent protection or overvoltage protection are carried out to the adapter.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (10)
1. a kind of adapter, it is characterised in that including：Power supply primary side, power supply secondary side and integrated control chip；
The power supply primary side, for the AC-input voltage of power supply to be processed into high voltage direct current, and by the HVDC
Electricity is supplied to the integrated control chip；
The integrated control chip, the voltage for after the high voltage direct current is obtained, controlling the power supply primary side turns
Change to the power supply secondary side, and control the synchronous rectification module of inside to carry out together the voltage for being transformed into the power supply secondary side
Step rectification；
The power supply secondary side, for the voltage after the integrated control chip synchronous rectification to be processed into DC voltage, and will
The direct voltage output gives the integrated control chip；
The integrated control chip, is additionally operable to adjust the power supply secondary side output based on the supply voltage required for external system
The DC voltage.
2. adapter according to claim 1, it is characterised in that the power supply primary side includes：Friendship to the power supply
Stream input voltage filters the wave filter of noise；It is connected with the wave filter, the AC-input voltage rectification after noise will be filtered and is
First rectifier of high voltage direct current；And, the transformer primary side being connected with first rectifier；
The power supply secondary side includes：Transformer secondary；It is connected with the transformer secondary, will be same through the integrated control chip
Step it is whole after voltage commutation into the DC voltage the second rectifier；And, first be connected with second rectifier opens
Close module.
3. adapter according to claim 2, it is characterised in that the integrated control chip is provided with synchronous rectification lock level
Pin, the synchronous rectification module is connected with synchronous rectification lock level pin, and the synchronous rectification lock level pin is connected to the transformation
Between device secondary and second rectifier；Wherein, the synchronous rectification module is used for by synchronous rectification lock level pin pair
The voltage of the transformer secondary output synchronizes rectification；
The integrated control chip is provided with breaker level pin, and the breaker level pin is connected with the first switch module；Its
In, whether the first switch module is used for entering working condition by adapter described in breaker level foot control system；
The integrated control chip also includes：It is power module, second switch module, synchronous rectification module, VRM Voltage Regulator Module, logical
News module and control module；
The integrated control chip is provided with power input pin, and the power input pin is connected with the power module, the electricity
Source input pin is connected between first rectifier and the transformer primary side；Wherein, after first rectifier rectification
Voltage can supply the power module by the power input pin, to cause that the power module is the integrated control core
Piece provides supply voltage and enters mode of operation；
The integrated control chip is provided with power pin, and the power pin is connected with the second switch module, the power pin
It is connected between first rectifier and the transformer primary side；Wherein, the second switch module is used for by controlling
The opening of power pin is stated with shut-off frequency so that the voltage output of the power supply primary side is to the power supply secondary side；
The integrated control chip is provided with feedback control pin, and the feedback control pin is connected with the VRM Voltage Regulator Module, institute
Feedback control pin is stated to be connected between second rectifier and the first switch module；Wherein, the VRM Voltage Regulator Module
For being exported to the output voltage of external system by first switch module described in feedback control foot control system；
The integrated control chip is provided with communication pin, and the communication pin is connected with the communication module；Wherein, the communication mould
Block is communicated by the communication pin with external system, needed at least for obtaining the external system being connected with the adapter
The supply voltage wanted；
The control module, the working condition for controlling modules in the integrated control chip.
4. adapter according to claim 3, it is characterised in that the integrated control chip also includes：
The over-voltage protection module being connected with feedback control pin；Wherein, the over-voltage protection module is used for described suitable
Orchestration carries out overvoltage protection.
5. adapter according to claim 3, it is characterised in that the integrated control chip also includes：
The overcurrent protection module being connected with feedback control pin；Wherein, the overcurrent protection module is used for described suitable
Orchestration carries out overcurrent protection.
6. adapter according to claim 3, it is characterised in that the integrated control chip also includes：Linear compensation mould
Block；
The integrated control chip is provided with linear compensation pin, and the linear compensation pin is connected with the linear compensation module, and
The linear compensation pin is connected between the wave filter and first rectifier；Wherein, the linear compensation module is used for
By the stabilized input voltage of first rectifier in the range of pre-set interval.
7. adapter according to claim 3, it is characterised in that the integrated control chip also includes：Temperature protection mould
Block；
The integrated control chip is provided with protection pin, and the protection pin is connected with the temperature protection module, and the protection
Pin is connected between first rectifier and the transformer primary side；Wherein, the temperature protection module is used for described suitable
Orchestration carries out temperature protection.
8. a kind of method of supplying power to, it is characterised in that be applied to adapter, the adapter includes that power supply primary side, power supply are secondary
Side and integrated control chip, methods described include：
The AC-input voltage of power supply is processed into high voltage direct current by the power supply primary side, and the high voltage direct current is provided
To the integrated control chip；
The integrated control chip controls the voltage conversion of the power supply primary side to institute after the high voltage direct current is obtained
Power supply secondary side is stated, and it is whole to control internal synchronous rectification module to synchronize the voltage for being transformed into the power supply secondary side
Stream；
Voltage after the integrated control chip synchronous rectification is processed into DC voltage by the power supply secondary side, and will be described straight
Stream voltage output gives the integrated control chip；
Supply voltage required for the integrated control chip is based on external system adjusts the described of the power supply secondary side output
DC voltage.
9. method of supplying power to according to claim 8, it is characterised in that the exchange of power supply is input into electricity by the power supply primary side
Pressure is processed into high voltage direct current, including：
The power supply primary side is filtered to the AC-input voltage of the power supply, filters making an uproar in the AC-input voltage
Sound；
The AC-input voltage rectification after noise will be filtered for high voltage direct current.
10. method of supplying power to according to claim 8 or claim 9, it is characterised in that the method for supplying power to also includes：
When the integrated control chip receives the external system there is the signal of swinging load, the adapter is entered
Row overcurrent protection or overvoltage protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710064372.4A CN106685008A (en) | 2017-02-04 | 2017-02-04 | Adapter and power supply method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710064372.4A CN106685008A (en) | 2017-02-04 | 2017-02-04 | Adapter and power supply method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106685008A true CN106685008A (en) | 2017-05-17 |
Family
ID=58860347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710064372.4A Pending CN106685008A (en) | 2017-02-04 | 2017-02-04 | Adapter and power supply method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106685008A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000078841A (en) * | 1998-08-28 | 2000-03-14 | Nec Corp | Rectifier circuit of dc/dc converter |
| CN102457188A (en) * | 2010-10-15 | 2012-05-16 | 华晶科技股份有限公司 | Digital flash lamp charging circuit |
| CN103811454A (en) * | 2012-11-14 | 2014-05-21 | 电力集成公司 | Magnetically coupled galvanically isolated communication using lead frame |
| CN106411136A (en) * | 2016-08-25 | 2017-02-15 | 浙江大学 | High-voltage capacitance coupling based control chip of isolated type power converter |
-
2017
- 2017-02-04 CN CN201710064372.4A patent/CN106685008A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000078841A (en) * | 1998-08-28 | 2000-03-14 | Nec Corp | Rectifier circuit of dc/dc converter |
| CN102457188A (en) * | 2010-10-15 | 2012-05-16 | 华晶科技股份有限公司 | Digital flash lamp charging circuit |
| CN103811454A (en) * | 2012-11-14 | 2014-05-21 | 电力集成公司 | Magnetically coupled galvanically isolated communication using lead frame |
| CN106411136A (en) * | 2016-08-25 | 2017-02-15 | 浙江大学 | High-voltage capacitance coupling based control chip of isolated type power converter |
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