CN107800313A - A kind of primary side feedback control method and device for cable pressure drop - Google Patents
A kind of primary side feedback control method and device for cable pressure drop Download PDFInfo
- Publication number
- CN107800313A CN107800313A CN201711120720.1A CN201711120720A CN107800313A CN 107800313 A CN107800313 A CN 107800313A CN 201711120720 A CN201711120720 A CN 201711120720A CN 107800313 A CN107800313 A CN 107800313A
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- Prior art keywords
- primary side
- voltage
- cable
- feedback control
- feedback
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- 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
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal 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
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal 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
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal 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 in a bridge configuration
-
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
-
- 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
- H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—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 with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of primary side feedback control method and device for cable pressure drop, including：The penalty coefficient of feedback control is determined according to cable；Thermal compensation signal is generated according to penalty coefficient；Use thermal compensation signal Compensation Feedback voltage；By the primary side of the feedback voltage input closed-loop control network after compensation.Primary side feedback control method proposed by the present invention for cable pressure drop can be directed to different converters from device or different types of converter carries out the primary side feedback control of cable pressure drop, compensate the voltage drop of cable impedance and maintain load voltage relatively stable, while also compensates for voltage drop caused by non-cable impedance reason (such as winding leakage inductance).
Description
Technical field
The present invention relates to electronic circuit field, more specifically, particularly relating to a kind of primary side feedback for cable pressure drop
Control method and device.
Background technology
Inverse excitation type converter because have the advantages that low cost with control it is simple, and be widely used in power supply adaptor and from
In the design of wire type battery charger.In primary side feedback controls (PSR, Primary Side Regulation), primary side
Load voltage is to carry out indirect detection by primary side assists winding, and the detection signal passes through accurate pulse width modulation again
(Pulse Width Modulation, PWM) circuit can obtain good voltage stabilizing output.
Because adapter or battery charger generally can all be set by a longer output cord with battery or electricity consumption
Standby connection, and cable impedance can form voltage drop (IR Drop), this can cause load voltage accordingly to reduce.Further, since transformation
The influence of device winding leakage inductance, auxiliary winding voltage typically can also raise with the increase of load current, and this will also result in feedback electricity
The inaccuracy of pressure.2 points of the above can all reduce load terminal voltage, and this is likely to result in load terminal voltage and falls short of specifications or lead
Cause the extension of battery charge time.
The problem of for the voltage drop of cable impedance in the prior art load voltage being reduced, there has been no effective at present
Solution.
The content of the invention
In view of this, the purpose of the embodiment of the present invention is to propose a kind of primary side feedback controlling party for cable pressure drop
Method and device, can be directed to different converters or different types of converter carries out the primary side feedback control of cable pressure drop, mend
Repay the voltage drop of cable impedance and maintain load voltage relatively stable.
Based on above-mentioned purpose, the one side of the embodiment of the present invention provides a kind of primary side feedback control for cable pressure drop
Method processed, comprises the following steps：
The penalty coefficient of feedback control is determined according to cable；
Thermal compensation signal is generated according to penalty coefficient；
Use thermal compensation signal Compensation Feedback voltage；
By the primary side of the feedback voltage input closed-loop control network after compensation.
In some embodiments, the penalty coefficient for determining feedback control according to cable includes：
Reference voltage and rated output voltage are obtained, and determines the voltage ratio of reference voltage and rated output voltage；
The impedance of cable is determined, and penalty coefficient is determined according to voltage ratio and the product of impedance.
In some embodiments, generating thermal compensation signal according to penalty coefficient includes：
Gathered in primary side and obtain load current；
The DC current gain of coefficient multiple is compensated to the load current collected and generates thermal compensation signal.
In some embodiments, it is equal to using thermal compensation signal Compensation Feedback voltage to obtain feedback voltage for compensating
The voltage drop of signal numerical value.
In some embodiments, the primary side of closed-loop control network is connected to error amplifier；It is anti-after compensation
Feedthrough voltage error originated from input operational amplifier end of oppisite phase.
In some embodiments, closed-loop control network is the closed-loop control network of compensation inverse excitation type converter.
In some embodiments, cable is arranged at the primary side of closed-loop control network.
In some embodiments, primary side feedback control method is used to the load voltage of primary side being maintained at stable
Value.
The another aspect of the embodiment of the present invention, a kind of primary side feedback control device for cable pressure drop is additionally provided,
Including：
Dc amplifier, for amplifying load current according to penalty coefficient；
Subtracter, dc amplifier is connected to, for Compensation Feedback voltage；
Error amplifier, subtracter is connected to, for compensating load voltage according to the feedback voltage after compensation；
Wherein, primary side feedback control device uses above-mentioned primary side feedback control method.
In some embodiments, primary side feedback control device is used to load voltage being maintained at stationary value.
The present invention has following advantageous effects：Primary side feedback provided in an embodiment of the present invention for cable pressure drop
Control method and device, by determining the penalty coefficient of feedback control according to cable, generation thermal compensation signal, Compensation Feedback voltage are simultaneously
The technical scheme of primary side is inputted, different converters can be directed to or different types of converter carries out the primary side of cable pressure drop
Feedback control, compensate the voltage drop of cable impedance and maintain load voltage relatively stable, while it is former to also compensates for non-cable impedance
The voltage drop caused by (such as winding leakage inductance).
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
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow of one embodiment of the primary side feedback control method provided by the invention for cable pressure drop
Figure；
Fig. 2 is the circuit of second embodiment of the primary side feedback control method provided by the invention for cable pressure drop
Figure；
Fig. 3 is the circuit of one embodiment of the primary side feedback control device provided by the invention for cable pressure drop
Figure.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, and reference
Accompanying drawing, the embodiment of the present invention is further described.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of individual same names or non-equal parameter, it is seen that " first " " second " should not only for the convenience of statement
The restriction to the embodiment of the present invention is interpreted as, subsequent embodiment no longer illustrates one by one to this.
Based on above-mentioned purpose, the embodiment of the present invention the on one side, it is proposed that one kind can be directed to different converters or
Different types of converter carries out one embodiment of the primary side feedback control method of cable pressure drop.Fig. 1 is illustrated that this
The schematic flow sheet of one embodiment of the primary side feedback control method for cable pressure drop provided is provided.
The primary side feedback control method for cable pressure drop, alternatively, comprise the following steps：
Step S101, the penalty coefficient of feedback control is determined according to cable；
Step S103, thermal compensation signal is generated according to penalty coefficient；
Step S105, use thermal compensation signal Compensation Feedback voltage；
Step S107, the feedback voltage after compensation is inputted to the primary side of closed-loop control network.
Wherein, alternatively, output voltage with the change of load current linear change, compensate cable voltage drop, so as to
Maintain load terminal voltage constant, to meet electrical equipment voltage request.
In some embodiments, the penalty coefficient for determining feedback control according to cable includes：
Reference voltage and rated output voltage are obtained, and determines the voltage ratio of reference voltage and rated output voltage；
The impedance of cable is determined, and penalty coefficient is determined according to voltage ratio and the product of impedance.
Wherein, alternatively, the voltage ratio of reference voltage and rated output voltage is the voltage drop that should be compensated, and cable hinders
It is anti-then be the consumer dropped by offset voltage, the step for be intended to push away compensation by the way that the voltage drop of cable is counter.
In some embodiments, generating thermal compensation signal according to penalty coefficient includes：
Gathered in primary side and obtain load current；
The DC current gain of coefficient multiple is compensated to the load current collected and generates thermal compensation signal.
Wherein, alternatively, transmitted in the form of electric current from primary side to primary side electric energy, therefore thermal compensation signal is formed
On electric current.
In some embodiments, it is equal to using thermal compensation signal Compensation Feedback voltage to obtain feedback voltage for compensating
The voltage drop of signal numerical value.
Wherein, alternatively, the voltage drop will be loaded on cable.
In some embodiments, the primary side of closed-loop control network is connected to error amplifier；It is anti-after compensation
Feedthrough voltage error originated from input operational amplifier end of oppisite phase.
In some embodiments, closed-loop control network is the closed-loop control network of compensation inverse excitation type converter.
Wherein, alternatively, opened loop control network can also be applied to after changing the algorithm of penalty coefficient.
In some embodiments, cable is arranged at the primary side of closed-loop control network.
In some embodiments, primary side feedback control method is used to the load voltage of primary side being maintained at stable
Value.
From above-described embodiment as can be seen that the primary side feedback controlling party provided in an embodiment of the present invention for cable pressure drop
Method, by determining the penalty coefficient of feedback control according to cable, generation thermal compensation signal, Compensation Feedback voltage simultaneously input primary side
Technical scheme, can be directed to different converters or different types of converter carries out the primary side feedback control of cable pressure drop, mend
Repay the voltage drop of cable impedance and maintain load voltage relatively stable, while also compensates for non-cable impedance reason (such as winding
Leakage inductance) caused by voltage drop.
The embodiment of the present invention, which also proposed one kind, can be directed to different converters or different types of converter progress cable
Second embodiment of the primary side feedback control method of pressure drop.Fig. 2 is illustrated that provided by the invention for cable pressure drop
The circuit diagram of second embodiment of primary side feedback control method, for the PSR inverse-excitation type battery chargers compensated with subtraction
Circuit.
As shown in Fig. 2 load current detection is by primary side current IPAnd Precision measurement resistance RS, loaded indirectly
Current signal VCS.Load current detection signal VCSIt is K via a DC current gainCCAmplifier and a low pass filter, production
Raw thermal compensation signal VCC.Voltage feedback signal VFBSubtract thermal compensation signal VCC, you can the feedback signal V after being compensatedFB_CC。VFB_CC
Error originated from input amplifier end of oppisite phase, output voltage is adjusted, you can obtains with load current increase and elevated output electricity
Press VO, so as to compensate due to pressure drop caused by cable impedance.
Especially, KCCAmplifier and low pass filter need small-signal model and frequency response based on feedback control network
Characteristic is calculated and designed, to obtain accurate, stable compensation network.If the DC current gain or low pass filter of amplifier
Cut-off frequency do not make appropriately designed, output voltage might have overcompensation or undercompensation and occur, in some instances it may even be possible to can produce vibration
Cause circuit job insecurity.
From above-described embodiment as can be seen that the primary side feedback controlling party provided in an embodiment of the present invention for cable pressure drop
Method, by determining the penalty coefficient of feedback control according to cable, generation thermal compensation signal, Compensation Feedback voltage simultaneously input primary side
Technical scheme, can be directed to different converters or different types of converter carries out the primary side feedback control of cable pressure drop, mend
Repay the voltage drop of cable impedance and maintain load voltage relatively stable, while also compensates for non-cable impedance reason (such as winding
Leakage inductance) caused by voltage drop.
It is important to note that in each embodiment of the above-mentioned primary side feedback control method for cable pressure drop
Each step can be intersected, replaces, increases, deleted, and therefore, these rational permutation and combination become alternatively in for cable
The primary side feedback control method of pressure drop should also be as belonging to protection scope of the present invention, and should not be by protection scope of the present invention
It is confined on the embodiment.
Based on above-mentioned purpose, second aspect of the embodiment of the present invention, it is proposed that one kind can be directed to different converters or
Different types of converter carries out one embodiment of the primary side feedback control device of cable pressure drop.Fig. 3 is illustrated that this
The schematic flow sheet of one embodiment of the primary side feedback control device for cable pressure drop provided is provided.
The primary side feedback control device for cable pressure drop, alternatively, including：
Dc amplifier, for amplifying load current according to penalty coefficient；
Subtracter, dc amplifier is connected to, for Compensation Feedback voltage；
Error amplifier, subtracter is connected to, for compensating load voltage according to the feedback voltage after compensation；
The primary side feedback control device for cable pressure drop has used the above-mentioned primary side for cable pressure drop
Feedback.
As shown in figure 3, load current IOThermal compensation signal K*I is formed by a DC current gainO, feedback voltage VFBSubtract this
After thermal compensation signal, then input to the end of oppisite phase of error amplifier.Penalty coefficient K is calculated by following formula：
Wherein, VREFFor reference voltage, RCABLEFor cable impedance, VO_RATEFor rated output voltage.Due to feedback voltage VFB
Reduce with load increase, converter end output voltage can increase as load increases, so as to maintain load terminal voltage basic
It is constant, meet rated voltage demand.Primary side feedback control device is used to load voltage being maintained at stationary value.
From above-described embodiment as can be seen that the primary side feedback provided in an embodiment of the present invention for cable pressure drop controls dress
Put, by determining the penalty coefficient of feedback control according to cable, generation thermal compensation signal, Compensation Feedback voltage simultaneously input primary side
Technical scheme, can be directed to different converters or different types of converter carries out the primary side feedback control of cable pressure drop, mend
Repay the voltage drop of cable impedance and maintain load voltage relatively stable, while also compensates for non-cable impedance reason (such as winding
Leakage inductance) caused by voltage drop.
It is important to note that the embodiment of the above-mentioned primary side feedback control device for cable pressure drop employs institute
The embodiment for the primary side feedback control method of cable pressure drop is stated to illustrate the course of work of each module, this area skill
Art personnel can be it is readily conceivable that these module applications to be directed to its of the primary side feedback control method of cable pressure drop described in
In his embodiment.Certainly, because each step in the primary side feedback control method embodiment for cable pressure drop is equal
It can intersect, replace, increase, delete, therefore, these rational permutation and combination become alternatively in described for cable pressure drop
Primary side feedback control device should also be as belonging to protection scope of the present invention, and should not be confined to protection scope of the present invention
On the embodiment.
Above is exemplary embodiment disclosed by the invention, it should be noted that in the sheet limited without departing substantially from claim
On the premise of inventive embodiments scope of disclosure, it may be many modifications and change.According to open embodiment described herein
The function of claim to a method, step and/or action be not required to perform with any particular order.In addition, although the present invention is implemented
Element disclosed in example can be described or required in the form of individual, but be odd number unless explicitly limited, it is understood that be multiple.
It should be appreciated that it is used in the present context, unless context clearly supports exception, singulative " one
It is individual " (" a ", " an ", " the ") be intended to also include plural form.It is to be further understood that "and/or" used herein is
Referring to includes any of one or more than one project listed in association and is possible to combine.
Those of ordinary skills in the art should understand that：The discussion of any of the above embodiment is exemplary only, not
It is intended to imply that scope of disclosure of the embodiment of the present invention (including claim) is limited to these examples；In the think of of the embodiment of the present invention
It under road, can also be combined, and exist as described above between the technical characteristic in above example or different embodiments
Many other changes of the different aspect of the embodiment of the present invention, for simplicity, they are not provided in details.Therefore, it is all at this
Spiritual and any omission within principle, made, modification, equivalent substitution, improvement of inventive embodiments etc., should be included in this hair
Within the protection domain of bright embodiment.
Claims (10)
1. a kind of primary side feedback control method for cable pressure drop, it is characterised in that comprise the following steps：
The penalty coefficient of feedback control is determined according to the cable；
Thermal compensation signal is generated according to the penalty coefficient；
Use the thermal compensation signal Compensation Feedback voltage；
By the primary side of the feedback voltage input closed-loop control network after compensation.
2. according to the method for claim 1, it is characterised in that the compensation system of feedback control is determined according to the cable
Number includes：
Reference voltage and rated output voltage are obtained, and determines the voltage ratio of the reference voltage and the rated output voltage；
The impedance of the cable is determined, and the penalty coefficient is determined according to the voltage ratio and the product of the impedance.
3. according to the method for claim 1, it is characterised in that the thermal compensation signal bag is generated according to the penalty coefficient
Include：
Gathered in primary side and obtain load current；
The DC current gain of the penalty coefficient multiple is carried out to the load current collected and generates the thermal compensation signal.
4. according to the method for claim 1, it is characterised in that compensate the feedback voltage using the thermal compensation signal to make
The feedback voltage obtains the voltage drop being equal to for the thermal compensation signal numerical value.
5. according to the method for claim 4, it is characterised in that the primary side of the closed-loop control network is connected to error fortune
Calculate amplifier；The feedback voltage after compensation inputs the error amplifier end of oppisite phase.
6. according to the method described in any one in claim 1-5, it is characterised in that the closed-loop control network is anti-for compensation
The closed-loop control network of excitation type converter.
7. according to the method described in any one in claim 1-5, it is characterised in that the cable is arranged at the closed loop control
The primary side of network processed.
8. according to the method described in any one in claim 1-5, it is characterised in that the primary side feedback control method is used
In the load voltage of primary side is maintained at into stationary value.
A kind of 9. primary side feedback control device for cable pressure drop, it is characterised in that including：
Dc amplifier, for amplifying load current according to penalty coefficient；
Subtracter, the dc amplifier is connected to, for Compensation Feedback voltage；
Error amplifier, the subtracter is connected to, for compensating load voltage according to the feedback voltage after compensation；
Wherein, primary side feedback control device uses the primary side feedback control method as described in claim 1-8 any one.
10. device according to claim 9, it is characterised in that the primary side feedback control device is used for will be described negative
Carry voltage and be maintained at stationary value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120720.1A CN107800313A (en) | 2017-11-14 | 2017-11-14 | A kind of primary side feedback control method and device for cable pressure drop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120720.1A CN107800313A (en) | 2017-11-14 | 2017-11-14 | A kind of primary side feedback control method and device for cable pressure drop |
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| Publication Number | Publication Date |
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| CN107800313A true CN107800313A (en) | 2018-03-13 |
Family
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| CN201711120720.1A Pending CN107800313A (en) | 2017-11-14 | 2017-11-14 | A kind of primary side feedback control method and device for cable pressure drop |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106608A (en) * | 2020-01-14 | 2020-05-05 | 四川航电微能源有限公司 | Control method for voltage drop compensation of aircraft ground power supply cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801300A (en) * | 2012-08-30 | 2012-11-28 | 佛山市南海赛威科技技术有限公司 | Primary-side feedback controlled switching power line loss compensating system and method |
| CN104682727A (en) * | 2015-03-15 | 2015-06-03 | 西安电子科技大学 | Primary-side constant-voltage feedback AC/DC (alternating current/direct current) converter provided with current compensation circuit |
| CN107210677A (en) * | 2014-11-14 | 2017-09-26 | 电力集成公司 | Power converter controller with stabiloity compensation |
| CN107231096A (en) * | 2017-07-14 | 2017-10-03 | 无锡硅动力微电子股份有限公司 | The multistage loop control circuit of primary side feedback Switching Power Supply |
-
2017
- 2017-11-14 CN CN201711120720.1A patent/CN107800313A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801300A (en) * | 2012-08-30 | 2012-11-28 | 佛山市南海赛威科技技术有限公司 | Primary-side feedback controlled switching power line loss compensating system and method |
| CN107210677A (en) * | 2014-11-14 | 2017-09-26 | 电力集成公司 | Power converter controller with stabiloity compensation |
| CN104682727A (en) * | 2015-03-15 | 2015-06-03 | 西安电子科技大学 | Primary-side constant-voltage feedback AC/DC (alternating current/direct current) converter provided with current compensation circuit |
| CN107231096A (en) * | 2017-07-14 | 2017-10-03 | 无锡硅动力微电子股份有限公司 | The multistage loop control circuit of primary side feedback Switching Power Supply |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106608A (en) * | 2020-01-14 | 2020-05-05 | 四川航电微能源有限公司 | Control method for voltage drop compensation of aircraft ground power supply cable |
| CN111106608B (en) * | 2020-01-14 | 2021-07-30 | 四川航电微能源有限公司 | Control method for voltage drop compensation of aircraft ground power supply cable |
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