CN206099765U - Adjustable constant voltage power supply's line loss compensating circuit and power adapter - Google Patents
Adjustable constant voltage power supply's line loss compensating circuit and power adapter Download PDFInfo
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- CN206099765U CN206099765U CN201620665586.8U CN201620665586U CN206099765U CN 206099765 U CN206099765 U CN 206099765U CN 201620665586 U CN201620665586 U CN 201620665586U CN 206099765 U CN206099765 U CN 206099765U
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Abstract
The utility model provides an adjustable constant voltage power supply's line loss compensating circuit and power adapter relates to circuit technical field. The utility model provides an adjustable constant voltage power supply's line loss compensating circuit connects between adjustable constant voltage power supply and load circuit, and line loss compensating circuit includes: comparing element, filtering unit and line loss compensation unit, comparing element to adjustable constant voltage power supply's output voltage with load circuit's input voltage carries out the comparison to enlarge voltage signal to filtering unit output difference according to the comparative result, the filtering unit enlargies voltage signal to the difference and carries out the post -filter and generate reference signal and erupt simultaneously and give line loss compensation unit, and line loss compensation unit is according to the feedback end output offset current of reference signal to adjustable constant voltage power supply, in order to realize the line loss compensation to adjustable constant voltage power supply. Realized the line loss compensation of adjustable constant voltage power supply pressure and the relevance between the load.
Description
Technical field
This utility model belongs to field of circuit technology, more particularly to a kind of line loss compensation circuit and electricity of adjustable stabilized voltage supply
Source adapter.
Background technology
Adjustable stabilized voltage supply is to utilize modern power electronics technology, by controlling switch break-over of device and the time ratio for turning off
Rate is maintaining a kind of power supply of output voltage stabilization.Nowadays with the development and application of extensive and super large-scale integration,
The current margin of adjustable stabilized voltage supply is increasing.And it is ever-increasing same in the load powered by adjustable stabilized voltage supply
When, in order to ensure that output voltage is constant, prior art is to provide linear benefit for adjustable stabilized voltage supply by fixed voltage penalty method
Repay.But, the method that this pair of adjustable stabilized voltage supply carries out line loss compensation is by the feedback end input one to adjustable stabilized voltage supply
Fixed offset voltage carries out line loss compensation, it is impossible to provide corresponding offset voltage according to the change of load.
In sum, the line loss compensation circuit of existing adjustable stabilized voltage supply cannot be adjustable according to the practical situation of load
The power supply of regulated power supply provides effective line loss compensation.
Utility model content
The purpose of this utility model embodiment is to provide a kind of line loss compensation circuit of adjustable stabilized voltage supply, it is intended to solved
The line loss compensation circuit of existing adjustable stabilized voltage supply cannot be carried according to the power supply that the practical situation of load is adjustable stabilized voltage supply
For effective line loss compensation.
This utility model embodiment is achieved in that a kind of line loss compensation circuit of adjustable stabilized voltage supply, and being connected to can
Adjust between regulated power supply and load circuit, the line loss compensation circuit includes：Comparing unit, filter unit and line loss compensation list
Unit；
First signal input part of the comparing unit is connected with the voltage output end of the adjustable stabilized voltage supply, the ratio
It is connected with the voltage input end of the load circuit compared with the secondary signal input of unit, the voltage input end of the filter unit
It is connected with the signal output part of the comparing unit, the letter of the voltage output end of the filter unit and the line loss compensation unit
Number input is connected, and the signal output part of the line loss compensation unit is connected with the feedback end of the adjustable stabilized voltage supply；
The comparing unit is carried out with the input voltage of the load circuit to the output voltage of the adjustable stabilized voltage supply
Relatively, and according to comparative result amplify voltage signal to the filter unit output difference, the filter unit is to the difference
Amplify and reference signal is generated after voltage signal is filtered and the line loss compensation unit is sent to, the line loss compensation unit root
Electric current is compensated to the feedback end output of the adjustable stabilized voltage supply according to the reference signal, to realize to the adjustable stabilized voltage supply
Line loss compensation.
Further, the comparing unit includes comparator, and the first input end of the comparator is the comparing unit
The first signal input part, the second input of the comparator is the secondary signal input of the comparing unit, the ratio
Compared with device outfan be the comparing unit outfan.
Further, the filter unit includes resistance R101 and electric capacity C101；
The first end of the resistance R101 is the voltage input end of the filter unit, second end of the resistance R101 with
The first end of the electric capacity C101 is connected, and the first end of the electric capacity C101 is the voltage output end of the filter unit, described
The second end ground connection of electric capacity C101.
Further, the filter unit includes：Resistance R201, resistance R202, resistance R203, resistance R204, electric capacity
C201, electric capacity C202 and the first amplifier；
The first end of the resistance R201 is the voltage input end of the filter unit, and second end of the resistance R201 is altogether
The first end of the resistance R202 and the first end of the electric capacity C201 are connect, second end of the electric capacity C201 is put with described first
The outfan of big device is connected, and second end of the resistance R202 connects the first end and first amplifier of the electric capacity C202 altogether
Forward signal input, the first end of the resistance R203 connects the negative input and the resistance of first amplifier altogether
The first end of R204, the second end ground connection of the resistance R203, second end of the resistance R204 and first amplifier
Outfan is connected, and the outfan of first amplifier is the voltage output end of the filter unit.
Further, the filter unit includes：Resistance R301, resistance R302, resistance R303, resistance R304, resistance
R305, resistance R306, resistance R307, electric capacity C301, electric capacity C302, electric capacity C303, the second amplifier and the 3rd amplifier；
The first end of the resistance R301 is the voltage input end of the filter unit, and second end of the resistance R301 is altogether
The first end of the resistance R302 and the first end of the electric capacity C301 are connect, second end of the electric capacity C301 is put with described second
The outfan of big device is connected, and second end of the resistance R302 connects the first end and second amplifier of the electric capacity C302 altogether
Forward signal input, the first end of the resistance R303 connects the negative input and the resistance of second amplifier altogether
The first end of R304, the second end ground connection of the resistance R303, second end of the resistance R304 connects second amplifier altogether
Outfan and the resistance R305 first end, second end of the resistance R305 connect altogether the first end of the electric capacity C303 with
The forward signal input of the 3rd amplifier, the second end ground connection of the electric capacity C303, the first end of the resistance R306
The negative-going signal input of the 3rd amplifier and the first end of the resistance R307, second end of the resistance R306 are connect altogether
Ground connection, second end of the resistance R307 are connected with the outfan of the 3rd amplifier, the outfan of the 3rd amplifier
For the voltage output end of the filter unit.
Further, the compensating unit includes the 4th amplifier, switching tube and resistance R401
The forward signal input of the amplifier is the signal input part of the compensating unit, the negative of the amplifier
Signal input part meets the cold end of the resistance R401 first ends and the switching tube, the outfan of the amplifier and institute altogether
The controlled end for stating switching tube is connected, and the hot end of the switching tube is the signal output part of the compensating unit.
Further, the switching tube is metal-oxide-semiconductor, IGBT pipes or the pipes of the IGBT with body diode.
Another object of the present utility model is to provide a kind of power supply adaptor, and the power supply adaptor includes as mentioned above
Adjustable stabilized voltage supply line loss compensation circuit.
This utility model provides a kind of line loss compensation circuit of adjustable stabilized voltage supply, is connected to adjustable stabilized voltage supply with load
Between circuit, line loss compensation circuit includes：Comparing unit, filter unit and line loss compensation unit；First letter of comparing unit
Number input is connected with the voltage output end of adjustable stabilized voltage supply, the secondary signal input of comparing unit and the electricity of load circuit
Pressure input is connected, and the voltage input end of filter unit is connected with the signal output part of comparing unit, and the voltage of filter unit is defeated
Go out end to be connected with the signal input part of line loss compensation unit, the signal output part of line loss compensation unit is anti-with adjustable stabilized voltage supply
Feedback end is connected；Comparing unit is compared with the input voltage of load circuit to the output voltage of adjustable stabilized voltage supply, and according to
Comparative result amplifies voltage signal to filter unit output difference, and filter unit is raw after being filtered to differential amplified voltage signal
Into reference signal and be sent to line loss compensation unit, line loss compensation unit according to feedback end from reference signal to adjustable stabilized voltage supply
Output compensation electric current, to realize the line loss compensation to adjustable stabilized voltage supply.Realize the line loss compensation to adjustable stabilized voltage supply pressure
Associating between load.
Description of the drawings
The structural representation of the line loss compensation circuit of the adjustable stabilized voltage supply that Fig. 1 is provided for this utility model first embodiment
Figure；
The physical circuit of the line loss compensation circuit of the adjustable stabilized voltage supply that Fig. 2 is provided for this utility model first embodiment
Figure；
Filter unit in the line loss compensation circuit of the adjustable stabilized voltage supply that Fig. 3 is provided for this utility model second embodiment
Physical circuit figure；
Filter unit tool in the line loss compensation circuit of the adjustable stabilized voltage supply that Fig. 4 is provided for this utility model 3rd embodiment
Body circuit diagram；
The structured flowchart of the power supply adaptor that Fig. 5 is provided for this utility model fourth embodiment.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit this utility model.
The purpose of this utility model embodiment is to provide a kind of chip, it is intended to solves prior art chips and does not possess
The problem of the function of self adjustment work shape body.
Fig. 1 shows the structural representation of the line loss compensation circuit of the adjustable stabilized voltage supply that the present embodiment is provided.
As shown in figure 1, a kind of line loss compensation circuit 100 of adjustable stabilized voltage supply, is connected to adjustable stabilized voltage supply 200 and bears
Carry between circuit 300, line loss compensation circuit 100 includes：Comparing unit 10, filter unit 20 and line loss compensation unit 30；
First signal input part of comparing unit 10 is connected with the voltage output end of adjustable stabilized voltage supply 200, comparing unit
10 secondary signal input is connected with the voltage input end of load circuit 300, the voltage input end of filter unit 20 with compare
The signal output part of unit 10 is connected, the voltage output end of filter unit 20 and the signal input part phase of line loss compensation unit 30
Even, the signal output part of line loss compensation unit 30 is connected with the feedback end of adjustable stabilized voltage supply 200；
Comparing unit 10 is compared with the input voltage of load circuit 300 to the output voltage of adjustable stabilized voltage supply 200,
And voltage signal Vamp is amplified to 20 output difference of filter unit according to comparative result, filter unit 20 is believed to differential amplified voltage
Number Vamp generates reference signal and is sent to line loss compensation unit 30 after being filtered, line loss compensation unit 30 is according to reference signal
To the feedback end output compensation electric current of adjustable stabilized voltage supply 200, to realize the line loss compensation to adjustable stabilized voltage supply 200.
In all embodiments of the present utility model, adjustable stabilized voltage supply 200 is existing to be led by controlling switch device
Lead to the time ratio for turning off to maintain stablizing for output voltage.It is by PFM (pulse frequency munition)
The mode of pulse frequency modulated is maintaining stablizing for output voltage.When the voltage needed for load circuit 300 is bigger, enter horizontal pulse
The dutycycle of warbled switching signal is bigger.
Comparing unit 10 is according to the output voltage of adjustable stabilized voltage supply 200 and the input voltage of load circuit 300 to filtering
20 output difference of unit amplifies voltage Vamp.Due to carrying out pulse frequency modulated when the input voltage of load circuit 300 is bigger
The dutycycle of switching signal is bigger, i.e. differential amplified voltage Vamp is one and the duty of load circuit 300 and switching signal
Than relevant voltage signal.I.e. when the output voltage needed for load circuit 300 is bigger, the switch letter of pulse frequency modulated is carried out
Number dutycycle it is bigger, the dutycycle of the differential amplified voltage Vamp that comparing unit 10 is exported to filter unit 20 is also more
Greatly.
Filter unit 20 according to differential amplified voltage Vamp generate reference signal, the reference signal be one with dutycycle into
The direct current signal of direct ratio.By the reference signal is sent to line loss compensation unit 30, line loss compensation unit 30 is according to the reference
Feedback end output compensation electric current of the signal to adjustable stabilized voltage supply 200.The compensation that adjustable stabilized voltage supply 200 is input into according to feedback end
Electric current adjusts voltage of the output to load circuit 300, realize the line loss compensation of adjustable stabilized voltage supply 200 and load circuit 300 it
Between association.
Fig. 2 shows the physical circuit schematic diagram of the line loss compensation circuit of the adjustable stabilized voltage supply that the present embodiment is provided, such as
Shown in Fig. 2, comparing unit 10 includes comparator U1, and the first input end of comparator U1 is the first signal input of comparing unit 10
End, second input of comparator U1 are the secondary signal input of comparing unit 10, and the outfan of comparator U1 is relatively more single
The outfan of unit 10.
In the present embodiment, output voltage and load of the comparing unit 10 by comparator U1 to adjustable stabilized voltage supply 200
The input voltage of circuit 300 is compared, and then output difference amplifies voltage Vamp.The duty of differential amplified voltage Vamp with
Load circuit 300 is relevant.As the voltage needed for load circuit 300 is bigger, adjustable stabilized voltage supply 200 carries out pulse frequency modulated
Switching signal dutycycle it is bigger, differential amplified voltage Vamp dutycycles increase with the increase needed for load circuit 300
Greatly.
As shown in Fig. 2 based on above-described embodiment, used as this utility model first embodiment, filter unit 20 includes
Resistance R101 and electric capacity C101；
Voltage input end of the first end of resistance R101 for filter unit 20, second end of resistance R101 is with electric capacity C101's
First end is connected, and the first end of electric capacity C101 is the voltage output end of filter unit 20, and second end of electric capacity C101 is grounded.
As shown in Fig. 2 compensating unit 30 includes the 4th amplifier M4, switching tube Q1 and resistance R401
Signal input part of the forward signal input of the 4th amplifier M4 for compensating unit 30, the 4th amplifier M4's are negative
The cold end of the common connecting resistance R401 first ends of phase signals input and switching tube Q1, outfan and the switch of the 4th amplifier M4
The controlled end of pipe Q1 is connected, and the hot end of the 4th amplifier M4 is the signal output part of compensating unit 30.
Used as an embodiment of the present utility model, first switch pipe Q1 can be metal-oxide-semiconductor or IGBT pipes or band body diode
IGBT pipe, can also be that other have the audion of switching function.
In the present embodiment, filter unit 20 is first-order low-pass wave circuit, by putting to the difference that comparator U1 is exported
Big voltage Vamp obtains reference signal after being filtered and is sent to compensating unit 30, and the reference signal is current signal Ii.Mend
In repaying unit 30, resistance R401 is sampling resistor, by the negative-going signal input input sample electric current I of the 4th amplifier M4r,
Sample rate current IrFor the current value that differential amplified voltage Vamp is obtained divided by resistance R401.The outfan root of the 4th amplifier M4
According to current signal IiWith sample rate current IrTo the controlled end output compensation electric current of switching tube Q1, as adjustable stabilized voltage supply 200 is just
A sampled signal can be sent to its feedback end when often working, therefore the hot end of switching tube Q1 is receiving the sampled signal
Meanwhile, switching tube Q1 conductings after its controlled end input offset current, compensation electric current flow into adjustable stabilized voltage supply by switching tube Q1
200 feedback end.Adjustable stabilized voltage supply 200 is reconciled its output voltage according to the compensation electric current and then realizes line loss compensation.
Based on first embodiment, second embodiment is proposed.The adjustable stabilized voltage supply that Fig. 3 is provided for second embodiment
Filter unit physical circuit figure in line loss compensation circuit, as shown in figure 3, from unlike first embodiment, in the present embodiment
Filter unit 20 includes：Resistance R201, resistance R202, resistance R203, resistance R204, electric capacity C201, electric capacity C202 and first
Amplifier M1；
Voltage input end of the first end of resistance R201 for filter unit 20, the common connecting resistance R202 in the second end of resistance R201
First end and electric capacity C201 first end, second end of electric capacity C201 is connected with the outfan of the first amplifier M1, resistance
Second end of R202 connects the forward signal input of the first end of electric capacity C202 and the first amplifier M1 altogether, and the first of resistance R203
End connects the negative input of the first amplifier M1 and the first end of resistance R204, the second end ground connection of resistance R203, resistance altogether
Second end of R204 is connected with the outfan of the first amplifier M1, and the outfan of the first amplifier M1 is the voltage of filter unit 20
Outfan.
In the present embodiment, filter unit 20 is second-order low-pass filter circuit, and differential amplified voltage Vamp is low in the second order
Obtained by feedback and circulation with stable reference signal, i.e. current signal I in bandpass filter circuiti, its filter effect is better than upper
State the first-order low-pass wave circuit in embodiment.
The physical circuit of filter unit in the line loss compensation circuit of the adjustable stabilized voltage supply that Fig. 4 is provided for 3rd embodiment
Figure.As shown in figure 4,
Filter unit 20 includes：Resistance R301, resistance R302, resistance R303, resistance R304, resistance R305, resistance R306,
Resistance R307, electric capacity C301, electric capacity C302, electric capacity C303, the second amplifier M2 and the 3rd amplifier M3；
Voltage input end of the first end of resistance R301 for filter unit 20, the common connecting resistance R302 in the second end of resistance R301
First end and electric capacity C301 first end, second end of electric capacity C301 is connected with the outfan of the second amplifier M2, resistance
Second end of R302 connects the forward signal input of the first end of electric capacity C302 and the second amplifier M2 altogether, and the first of resistance R303
End connects the negative input of the second amplifier M2 and the first end of resistance R304, the second end ground connection of resistance R303, resistance altogether
Second end of R304 connects the outfan of the second amplifier M2 and the first end of resistance R305 altogether, and second end of resistance R305 connects electricity altogether
Hold the first end of C303 and the forward signal input of the 3rd amplifier M3, second end of electric capacity C303 is grounded, resistance R306's
First end connects the negative-going signal input of the 3rd amplifier M3 and the first end of resistance R307, second termination of resistance R306 altogether
Ground, second end of resistance R307 are connected with the outfan of the 3rd amplifier M3, and the outfan of the 3rd amplifier M3 is filter unit
20 voltage output end.
In the present embodiment, filter unit 20 is multistage active filter circuit, and differential amplified voltage Vamp multistage has at this
Obtained by feedback and circulation with stable reference signal, i.e. current signal I in power filteri。
Based on above-described embodiment, another embodiment is proposed, it is therefore intended that provide a kind of power supply adaptor 400.Fig. 5 is
The structured flowchart of the power supply adaptor that the present embodiment is provided.As shown in figure 5, power supply adaptor 400 can in including above-described embodiment
Adjust the line loss compensation circuit 100 of regulated power supply.
Due to the present embodiment improvement related to this utility model content and implementation in the above-described embodiments and
Describe in detail, therefore here is omitted.
This utility model provides a kind of line loss compensation circuit of adjustable stabilized voltage supply, is connected to adjustable stabilized voltage supply with load
Between circuit, line loss compensation circuit includes：Comparing unit, filter unit and line loss compensation unit；First letter of comparing unit
Number input is connected with the voltage output end of adjustable stabilized voltage supply, the secondary signal input of comparing unit and the electricity of load circuit
Pressure input is connected, and the voltage input end of filter unit is connected with the signal output part of comparing unit, and the voltage of filter unit is defeated
Go out end to be connected with the signal input part of line loss compensation unit, the signal output part of line loss compensation unit is anti-with adjustable stabilized voltage supply
Feedback end is connected；Comparing unit is compared with the input voltage of load circuit to the output voltage of adjustable stabilized voltage supply, and according to
Comparative result amplifies voltage signal to filter unit output difference, and filter unit is raw after being filtered to differential amplified voltage signal
Into reference signal and be sent to line loss compensation unit, line loss compensation unit according to feedback end from reference signal to adjustable stabilized voltage supply
Output compensation electric current, to realize the line loss compensation to adjustable stabilized voltage supply.Realize the line loss compensation to adjustable stabilized voltage supply pressure
Associating between load.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (8)
1. a kind of line loss compensation circuit of adjustable stabilized voltage supply, is connected between adjustable stabilized voltage supply and load circuit, its feature
It is that the line loss compensation circuit includes：Comparing unit, filter unit and line loss compensation unit；
First signal input part of the comparing unit is connected with the voltage output end of the adjustable stabilized voltage supply, described relatively more single
The secondary signal input of unit is connected with the voltage input end of the load circuit, the voltage input end of the filter unit and institute
The signal output part for stating comparing unit is connected, and the voltage output end of the filter unit is defeated with the signal of the line loss compensation unit
Enter end to be connected, the signal output part of the line loss compensation unit is connected with the feedback end of the adjustable stabilized voltage supply；
The comparing unit is compared with the input voltage of the load circuit to the output voltage of the adjustable stabilized voltage supply,
And voltage signal is amplified to the filter unit output difference according to comparative result, the filter unit is to differential amplification electricity
Pressure signal generates reference signal and is sent to the line loss compensation unit after being filtered, the line loss compensation unit is according to described
Feedback end output compensation electric current of the reference signal to the adjustable stabilized voltage supply, to realize the line loss to the adjustable stabilized voltage supply
Compensation.
2. the line loss compensation circuit of adjustable stabilized voltage supply as claimed in claim 1, it is characterised in that the comparing unit includes
Comparator, the first input end of the comparator is the first signal input part of the comparing unit, the second of the comparator
Input is the secondary signal input of the comparing unit, and the outfan of the comparator is the output of the comparing unit
End.
3. the line loss compensation circuit of adjustable stabilized voltage supply as claimed in claim 1, it is characterised in that the filter unit includes
Resistance R101 and electric capacity C101；
The first end of the resistance R101 is the voltage input end of the filter unit, second end of the resistance R101 with it is described
The first end of electric capacity C101 is connected, and the first end of the electric capacity C101 is the voltage output end of the filter unit, the electric capacity
The second end ground connection of C101.
4. the line loss compensation circuit of adjustable stabilized voltage supply as claimed in claim 1, it is characterised in that the filter unit bag
Include：Resistance R201, resistance R202, resistance R203, resistance R204, electric capacity C201, electric capacity C202 and the first amplifier；
The first end of the resistance R201 is the voltage input end of the filter unit, and second end of the resistance R201 meets institute altogether
State the first end of resistance R202 and the first end of the electric capacity C201, second end of the electric capacity C201 and first amplifier
Outfan be connected, second end of the resistance R202 is just connecing the first end and first amplifier of the electric capacity C202 altogether
To signal input part, the first end of the resistance R203 connects the negative input and the resistance R204 of first amplifier altogether
First end, the second end ground connection of the resistance R203, the output of second end of the resistance R204 and first amplifier
End is connected, and the outfan of first amplifier is the voltage output end of the filter unit.
5. the line loss compensation circuit of adjustable stabilized voltage supply as claimed in claim 1, it is characterised in that the filter unit bag
Include：Resistance R301, resistance R302, resistance R303, resistance R304, resistance R305, resistance R306, resistance R307, electric capacity C301, electricity
Hold C302, electric capacity C303, the second amplifier and the 3rd amplifier；
The first end of the resistance R301 is the voltage input end of the filter unit, and second end of the resistance R301 meets institute altogether
State the first end of resistance R302 and the first end of the electric capacity C301, second end of the electric capacity C301 and second amplifier
Outfan be connected, second end of the resistance R302 is just connecing the first end and second amplifier of the electric capacity C302 altogether
To signal input part, the first end of the resistance R303 connects the negative input and the resistance R304 of second amplifier altogether
First end, the resistance R303 the second end ground connection, second end of the resistance R304 connects the defeated of second amplifier altogether
Go out the first end of end and the resistance R305, second end of the resistance R305 connect altogether the first end of the electric capacity C303 with it is described
The forward signal input of the 3rd amplifier, the second end ground connection of the electric capacity C303, the first end of the resistance R306 are connect altogether
The negative-going signal input of the 3rd amplifier and the first end of the resistance R307, second termination of the resistance R306
Ground, second end of the resistance R307 are connected with the outfan of the 3rd amplifier, and the outfan of the 3rd amplifier is
The voltage output end of the filter unit.
6. the line loss compensation circuit of adjustable stabilized voltage supply as claimed in claim 1, it is characterised in that the compensating unit includes
4th amplifier, switching tube and resistance R401
The forward signal input of the amplifier is the signal input part of the compensating unit, the negative signal of the amplifier
Input connects the cold end of the resistance R401 first ends and the switching tube altogether, and the outfan of the amplifier is opened with described
The controlled end for closing pipe is connected, and the hot end of the switching tube is the signal output part of the compensating unit.
7. the line loss compensation circuit of adjustable stabilized voltage supply as claimed in claim 6, it is characterised in that the switching tube is MOS
Pipe, IGBT pipes or the pipes of the IGBT with body diode.
8. a kind of power supply adaptor, it is characterised in that the power supply adaptor is included as described in claim 1-7 any one
The line loss compensation circuit of adjustable stabilized voltage supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620665586.8U CN206099765U (en) | 2016-06-29 | 2016-06-29 | Adjustable constant voltage power supply's line loss compensating circuit and power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620665586.8U CN206099765U (en) | 2016-06-29 | 2016-06-29 | Adjustable constant voltage power supply's line loss compensating circuit and power adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099765U true CN206099765U (en) | 2017-04-12 |
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ID=59975150
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| CN201620665586.8U Active CN206099765U (en) | 2016-06-29 | 2016-06-29 | Adjustable constant voltage power supply's line loss compensating circuit and power adapter |
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| CN (1) | CN206099765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947537A (en) * | 2017-12-25 | 2018-04-20 | 上海贝岭股份有限公司 | The line loss compensation circuit of Switching Power Supply |
-
2016
- 2016-06-29 CN CN201620665586.8U patent/CN206099765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947537A (en) * | 2017-12-25 | 2018-04-20 | 上海贝岭股份有限公司 | The line loss compensation circuit of Switching Power Supply |
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Address after: 518000 1701, building 1, Shenzhen new generation industrial park, 136 Zhongkang Road, Meidu community, Meilin street, Futian District, Shenzhen City, Guangdong Province Patentee after: Fuman microelectronics Group Co.,Ltd. Address before: Unit b7-b8, 9 / F, Yanxiang science and technology building, 31 Gaoxin Zhongsi Road, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN FUMAN ELECTRONIC GROUP Co.,Ltd. |
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