CN104333239B - A kind of fully integrated AC DC transducer of high efficiency - Google Patents
A kind of fully integrated AC DC transducer of high efficiency Download PDFInfo
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- CN104333239B CN104333239B CN201410570678.3A CN201410570678A CN104333239B CN 104333239 B CN104333239 B CN 104333239B CN 201410570678 A CN201410570678 A CN 201410570678A CN 104333239 B CN104333239 B CN 104333239B
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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
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
Abstract
The invention discloses a kind of fully integrated AC DC transducer of high efficiency, the three grid chi structures be made up of including the first AC signal input port, the second AC signal input port, the first linear voltage regulator, the second linear voltage regulator, ground connection output port, direct current output port and the first transistor to the 6th transistor are from control rectifier.The present invention combines commutator and manostat, saves commutator bulky capacitor below, output capacitance little it is easy to integrated and output ripple is little；Including three grid chi structures from control rectifier, replace MUX with three grid chi structures from the mode controlling, the pulse wave signal producing without MUX, solve the reverse leakage flow problem of active diode structure it is ensured that the efficiency of conversion.The composite can be widely applied to technical field of integrated circuits.
Description
Technical field
The present invention relates to technical field of integrated circuits, the fully integrated AC-DC converter of especially a kind of high efficiency.
Background technology
Increasingly it is widely used in because of battery size, service life and one-tenth based on inductive coupled radio source transmission technology
The factors such as this control and lead to battery using inconvenience or the system of battery cannot be installed in, such as biologic medical implant devices, wireless
RFID tag and close range wireless communication equipment etc..This generally comprise 3 based on the energy autonomous system of inductive
Part：Reader, induction coil and transponder.The carrier signal that reader sends is obtained by transponder by induction coil, and
AC signal is converted to by DC voltage by AC-DC converter.Traditional radio source Transmission system block diagram as shown in figure 1,
Generally AC-DC converter includes rectification and two parts of voltage stabilizing, and each part is required for a larger coupled capacitor.
Commutator is used to AC signal is converted to the device of direct current signal.Most basic commutator is diode rectification
Device, no matter but be the MOSFET with commutation diode or diode-connected（Metal oxide layer-quasiconductor-field-effect transistor）
Will there is larger conduction voltage drop, limit amplitude and the voltage conversion efficiency of input signal, so the diode of routine is whole
Stream device is seldom used in an integrated system.Nearly ten years, main flow is become based on the full wave rectifier of active diode.This all-wave is whole
Stream device adopts four power transistors, by controlling their conducting consistent to realize the flow direction of electric current with cut-off.Therefore, from reason
By above saying, the difference of output-input voltage is only determined by the conducting resistance and load current of transistor, and the threshold with power transistor
Threshold voltage is unrelated, thus significantly reducing the internal power consumption of commutator, substantially increases conversion efficiency.In fact, this structure
One subject matter of lower its efficiency of impact is the stationary problem of transistor：When loading larger, transistor needs to be designed to big chi
Very little to meet the requirement of electric current density and efficiency, but the grid capacitance of large-sized transistor is larger, leads to the discharge and recharge time relatively
Long, such commutator easily forms relatively long reverse-conducting path in high frequency, have impact on the efficiency of commutator.Cause
How this, avoided the difficult point that the reverse-conducting path being formed because transistor simultaneously turns on is rectifier design to be located.
The DC voltage of commutator output is affected by factors such as the relative distance of induction coil and angles and is changed significantly, stricture of vagina
Ripple is larger, so also needing to a manostat after transponder rectification to obtain a galvanic current pressure.For wireless energy
Amount Transmission system circuit, the most basic requirement of manostat is exactly low speed paper tape reader static power disspation.Plus Cost Problems, without inductance and be easy to
Fully integrated linear voltage regulator（LDO）Become for the first-selection of this kind of application.But the quiescent current of LDO is extremely low, mapping
Weaker and power supply noise rejection ability is relatively low.Additionally, in order to improve integrated level, wireless energy transfer system circuit will subtract as far as possible
Bulky capacitor outside few piece.So no the outer output capacitance of piece, transient response be quick, the high and low quiescent dissipation of Power supply rejection ability and
Stable LDO is that the difficult point of regulator design is located.
For needing fully integrated and inexpensive biologic medical implant devices, improve the performance of AC-DC converter with
Saving area is two key issues needing to consider.Weighing the good and bad index of AC-DC converter performance is to convert AC signal
Ability for DC signal and the ability providing voltage and current, specifically it is simply that power conversion efficiency（PCE）Turn with voltage
Change the ripple of efficiency and output.Current commutator typically can only achieve 82% power below conversion efficiency, the power of LDO
Conversion efficiency can reach 95% about, so the PCE of whole AC-DC converter is.
Voltage conversion efficiency（VCR）Relevant with the size of output impedance and the pressure drop of each element of signal transmission loop, whole AC-DC turns
The pressure drop of parallel operation includes rectification pressure drop and this two parts of voltage stabilizing pressure drop.And output ripple is then relevant with output capacitance, commutator one
As have a big storage capacitance, manostat is also required to a big electric capacity of voltage regulation, and this two output capacitances are typically in μ
F magnitude, takies too big chip area, is unfavorable for integrated.If reduction output capacitance, again need consider stability problem and
The method of Ripple Suppression.
For output capacitance this problem big, T.J Sun proposes a kind of new circuit structure rectifying pressurizer
（rectigulator）, commutator and manostat are combined, directly AC signal are converted into stable direct current signal defeated
Go out, thus saving commutator bulky capacitor below, but it remains a need for the electric capacity of a μ F level, as shown in Figure 2.Fig. 3 gives T.J
The physical circuit schematic diagram of the rectigulator that Sun is proposed.This circuit is made up of following four parts：Four transistors, two
Individual operational amplifier, two alternative MUX and a DC voltage bleeder circuit.Wherein, four transistors（M1、
M2, M3 and M4）It is the main path of AC-DC converter, the grid of transistor M1 and M2 is driven by operational amplifier, alternate conduction,
By the signal from ac input end to DC output end；Transistor M3 and M4 is that grid intersects（cross-gate）Structure, hands over
For conducting, by the direct current signal by ground to ac input end.This structure can be regarded as being driven by general operational amplifier
Active diode commutator and LDO have shared a pair of transistor, carry out voltage stabilizing while rectification.And, this structure defeated
Go out end and only need to an electric capacity, the electric capacity of voltage regulation of the storage capacitance simultaneously as commutator for this electric capacity and manostat.But, at this
In individual structure, the input end signal of operational amplifier is the pulse wave signal being produced by MUX, and this signal is analogous to
The drive signal of dc-dc switching tube, therefore output have larger noise.Secondly, on this structural nature, still computing is put
The active diode that big device drives, when the higher luck of frequency is left with offset（Skew）, lead to the formation of leakage current, further
Reduce conversion efficiency.
Content of the invention
In order to solve above-mentioned technical problem, the purpose of the present invention is：One kind is easily integrated, output ripple is little and does not deposit for offer
In reverse leakage current, the fully integrated AC-DC converter of high efficiency.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of fully integrated AC-DC converter of high efficiency, defeated including the first AC signal input port, the second AC signal
Inbound port, the first linear voltage regulator, the second linear voltage regulator, ground connection output port, direct current output port and by the first transistor
To the 6th transistor composition three grid chi structures from control rectifier, described first AC signal input port is respectively with first
The source electrode of transistor, the grid of the grid of transistor seconds, the drain electrode of third transistor and the 4th transistor connect, and the described 3rd
The source electrode of transistor is connected with the source electrode of the 4th transistor, the drain electrode of the grid of described third transistor and the 4th transistor all with
Direct current output port connects, and described first linear voltage regulator is connected in parallel between the source electrode of the 4th transistor and drain electrode；Described
Second AC signal input port respectively with the grid of the first transistor, the source electrode of transistor seconds, the 5th transistor drain electrode
Connect with the grid of the 6th transistor, the source electrode of described 5th transistor is connected with the source electrode of the 6th transistor, the described 5th is brilliant
The drain electrode of the grid of body pipe and the 6th transistor is all connected with direct current output port, and described second linear voltage regulator is connected in parallel to
Between the source electrode of the 6th transistor and drain electrode；The drain electrode of the drain electrode of described the first transistor and transistor seconds is all exported with ground connection
Port connects.
Further, described the first transistor meets to the relation of the 6th transistor：If the first AC signal input port
Voltage is more than the voltage of direct current output port, then transistor seconds and third transistor are both turned on, the first transistor, the 4th crystal
Pipe and the 5th transistor are turned off；If the voltage of the first AC signal input port is less than the voltage of direct current output port, the
Two-transistor and third transistor are turned off, and the first transistor and the 4th transistor are both turned on；If the second AC signal input
Mouthful voltage be more than the voltage of direct current output port, then the first transistor and the 5th transistor are both turned on, transistor seconds, the 3rd
Transistor and the 6th transistor are turned off；If the voltage of the second AC signal input port is less than the voltage of direct current output port,
Then the first transistor and the 5th transistor are turned off, and transistor seconds and the 6th transistor are both turned on.
Further, described first linear voltage regulator or the second linear voltage regulator includes first order amplifying circuit, the second level is put
Big circuit, third level amplifying circuit, feedforward diode, high pass filter and miller compensation electric capacity, described first order amplifying circuit
Including bias current mirror, Differential input circuit and current mirror load, described second level amplifying circuit includes common source amplifying transistor
With Current amplifier current mirror, described third level amplifying circuit includes the 7th transistor and load, the source electrode of described 7th transistor
It is connected with one end of the negative electrode, Current amplifier current mirror and bias current mirror of feedforward diode respectively, described bias current mirror
The other end is connected with Differential input circuit, and an input of described Differential input circuit is connected with load, described Differential Input electricity
Another input termination reference voltage on road, described Differential input circuit is also connected with current mirror load, and described current mirror load is also
It is connected with miller compensation electric capacity and common source amplifying transistor respectively, described miller compensation electric capacity is connected with direct current output port；Institute
The grid stating the 7th transistor is connected with anode, Current amplifier current mirror and the high pass filter of the diode that feedovers respectively, described
Current mirror load, common source amplifying transistor and high pass filter are all connected with ground connection output port, described Current amplifier current mirror
Also all connect input voltage with high pass filter；The drain electrode of described 7th transistor is connected with load and direct current output port respectively.
Further, described bias current mirror is PMOS current mirror, and described current mirror load is NMOS current mirror, described difference
Input circuit is PMOS differential pair pipe input circuit.
Further, described the first transistor and transistor seconds are NMOS tube, described third transistor, the 4th crystal
Pipe, the 5th transistor, the 6th transistor and the 7th transistor are PMOS.
The invention has the beneficial effects as follows：Commutator and manostat are combined, saves commutator bulky capacitor below, defeated
Go out electric capacity little it is easy to integrated and output ripple is little；Including three grid chi structures from control rectifier, with three grid chi structures
Replace MUX from the mode controlling, the pulse wave signal producing without MUX, solve active diode knot
The reverse leakage flow problem of structure is it is ensured that the efficiency of conversion.Further, linear voltage regulator includes Differential Input amplifier stage, Gao Zeng
Beneficial level, high pass filter, feedforward diode, miller compensation electric capacity and the 7th transistor, by high pass filter with diode even
The method of the feedforward Power supply rejection ability to improve linear voltage regulator worked in coordination with by the transistor connecing, and further reduces output stricture of vagina
Ripple.
Brief description
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the theory diagram of conventional wireless power delivery system；
Fig. 2 is the theory diagram of the radio source Transmission system based on rectigulator structure；
Fig. 3 is the circuit theory diagrams of rectigulator structure；
Fig. 4 is a kind of circuit theory diagrams of the fully integrated AC-DC converter of high efficiency of the present invention；
Fig. 5 is the present invention first linear voltage regulator or the circuit theory diagrams of the second linear voltage regulator.
Specific embodiment
With reference to Fig. 4, a kind of fully integrated AC-DC converter of high efficiency, including the first AC signal input port AC1, the
Two AC signal input port AC2, the first linear voltage regulator LLDO, the second linear voltage regulator RLDO, ground connection output port, direct current
Output port DC Output and three grid chi structure automatic control rectifications being made up of the first transistor to the 6th transistor M1～M6
Device, described first AC signal input port AC1 respectively with the source electrode of the first transistor M1, the grid of transistor seconds M2,
Grid connection, the source electrode of described third transistor M3 and the 4th transistor M4 of the drain electrode of three transistor M3 and the 4th transistor M4
Source electrode connect, the drain electrode of the grid of described third transistor M3 and the 4th transistor M4 all with direct current output port DC
Output connects, and described first linear voltage regulator LLDO is connected in parallel between the source electrode of the 4th transistor M4 and drain electrode；Described
Second AC signal input port AC2 respectively with the grid of the first transistor M1, the source electrode of transistor seconds M2, the 5th transistor
The grid of the drain electrode of M5 and the 6th transistor M6 connects, and the source electrode of the source electrode of described 5th transistor M5 and the 6th transistor M6 is even
Connect, the described grid of the 5th transistor M5 and the drain electrode of the 6th transistor M6 are all connected with direct current output port DC Output, institute
State the second linear voltage regulator RLDO to be connected in parallel between the source electrode of the 6th transistor M6 and drain electrode；Described the first transistor M1's
The drain electrode of drain electrode and transistor seconds M2 is all connected with ground connection output port.
It is further used as preferred embodiment, the relation of described the first transistor M1 to the 6th transistor M6 meets：If
The voltage of the first AC signal input port AC1 be more than direct current output port DC Output voltage, then transistor seconds M2 and
Third transistor M3 is both turned on, and the first transistor M1, the 4th transistor M4 and the 5th transistor M5 are turned off；If the first exchange letter
The voltage of number input port AC1 is less than the voltage of direct current output port DC Output, then transistor seconds M2 and third transistor
M3 is turned off, and the first transistor M1 and the 4th transistor M4 are both turned on；If the voltage of the second AC signal input port AC2 is more than
The voltage of direct current output port DC Output, then the first transistor M1 and the 5th transistor M5 be both turned on, transistor seconds M2,
Third transistor M3 and the 6th transistor M6 are turned off；If the voltage of the second AC signal input port AC2 is less than direct current output
The voltage of port DC Output, then the first transistor M1 and the 5th transistor M5 be turned off, transistor seconds M2 and the 6th crystal
Pipe M6 is both turned on.
With reference to Fig. 5, it is further used as preferred embodiment, described first linear voltage regulator or the second linear voltage regulator bag
Include first order amplifying circuit 1, second level amplifying circuit 2, third level amplifying circuit 3, feedforward diode 4, high pass filter 5 and close
Strangle compensating electric capacity Cm, described first order amplifying circuit 1 includes bias current mirror 11, Differential input circuit 12 and current mirror load
13, described second level amplifying circuit includes common source amplifying transistor 21 and Current amplifier current mirror 22, and the described third level amplifies electricity
Road includes the 7th transistor M7 and load load, source electrode negative electrode, the electricity with feedforward diode 4 respectively of described 7th transistor M7
Banish one end connection, the other end of described bias current mirror 11 and the Differential input circuit of high current mirror 22 and bias current mirror 11
12 connection, an input of described Differential input circuit 12 with load load be connected, described Differential input circuit 12 another defeated
Enter to terminate reference voltage V ref, described Differential input circuit 12 is also connected with current mirror load 13, described current mirror load 13 is also
It is connected with miller compensation electric capacity Cm and common source amplifying transistor 21 respectively, described miller compensation electric capacity Cm and direct current output port DC
Output connects；The grid of described 7th transistor M7 anode, Current amplifier current mirror 22 and the height with the diode 4 that feedovers respectively
Bandpass filter 5 connects, described current mirror load 13, common source amplifying transistor 21 and high pass filter 5 all with ground connection output port
Connect, described common-battery banishes high current mirror 22 and high pass filter 5 also all connects input voltage VIN；Described 7th transistor M7's
Drain electrode is connected with load load and direct current output port DC Output respectively.
Wherein, the first amplifying circuit and the second amplifying circuit constitute two-stage calculation amplifier, for loading to outfan
Feedback signal be amplified.And miller compensation electric capacity Cm, then it is used for ensureing the stability of whole linear voltage regulator loop.
It is further used as preferred embodiment, described bias current mirror 11 is PMOS current mirror, described current mirror load
13 is NMOS current mirror, and described Differential input circuit 12 is PMOS differential pair pipe input circuit.
It is further used as preferred embodiment, described the first transistor M1 and transistor seconds M2 are NMOS tube, institute
State third transistor M3, the 4th transistor M4, the 5th transistor M5, the 6th transistor M6 and the 7th transistor M7 are PMOS
Pipe.
With reference to Figure of description and specific embodiment, the present invention is further described in detail.
Embodiment one
With reference to Fig. 4, the first embodiment of the present invention：
The AC-DC converter of the present invention is a simple two-port network, and wherein, AC1 and AC2 is input port, DC
Output and GND ground connection output port is output port.Whole AC-DC converter includes two major parts：By three grids
The linear voltage regulator from control commutator and high power supply voltage rejection ratio of chi structure composition.This two parts shares an output
Electric capacity, size only needs to 4nF it is easy to integrated on piece.
Wherein, the core of commutator is three grid chi structures.Transistor M3 and M5 be AC signal from input to
The primary path of outfan, and the direct current signal primary path on transistor M1 and M2 to be input arrive ground.Transistor M4 and M6 be for
Realize from control switch, with avoid as rectigulator structure with MUX generation external pulse signal Lai
Control the operating path of commutator.
The work process of the whole circuit of the present invention is as follows：
Within a half period, when the output voltage that the voltage of input AC1 is higher than direct current output port, M3 opens,
Electric current reaches DC output end from M3 through LLDO, and M2 also opens the electric current by ground to AC1 simultaneously, and M5 then turns off to avoid
DC output end is to the reverse leakage current on ground.Now, M4 turns off, and M1 is also switched off, the dotted line in its signal primary path such as Fig. 4 and arrow
Head shown in, transducer mainly using LLDO come voltage stabilizing.This state down-converter output DC voltage be,
Wherein, voltage on the basis of Vref, R1 and R2 is the divider resistance of transducer.And when AC1 is less than the signal of outfan, M3 closes
Disconnected, main signal path turns off, and now, LLDO does not work, and M2 is also switched off.Due to LLDO transient response quickly, so its shutoff
Time is very short to pass through it is possible to be effectively prevented from reverse leakage current.Now, M4 opens, and voltage stabilizing is stored by DC output end
The discharge and recharge of electric capacity is realizing；M1 also opens, thus realizing the circuit alternation of the right and left.And the work of input AC2
Process is similar with input AC1 work process.
In order to further provide for the conversion efficiency of transducer, the present invention also needs to that output capacitance is little, transient response is high, power supply
The strong LDO of Ripple Suppression ability.Fig. 5 is the physical circuit schematic diagram of LDO of the present invention.The present invention adopts a PMOS difference defeated
Enter, N manages the two-stage calculation amplifier of active amplification（First order amplifying circuit and second level amplifying circuit）To amplify the anti-of load
Feedback signal.Wherein, first order amplifying circuit is used for the common source amplification of Differential Input pipe, and load current mirror 13 loads as it；The
Second amplifying circuit（High-gain stage）It is the main circuit improving gain, the wherein output of 22 second level of Current amplifier current mirror
Electric current improves 10 times, thus improve mutual conductance, reducing output impedance, increased bandwidth, and such output stage can also carry
The amplitude of oscillation of high output voltage.Present invention feedforward diode and high pass filter form feedforward path, altogether before power supply ripple
It is fed to the grid of transistor M7.The PMOSFET that diode connects is mainly used in the low-frequency ripple that feedovers, and high pass filter is mainly used in
Feedforward medium-high frequency ripple, this two signals are superimposed at the grid of transistor M7.This feedforward path, improves the power supply of Mid Frequency
Noise inhibiting ability, reduces output ripple.Additionally, the present invention additionally uses the miller compensation electric capacity Cm of a 1pF to ensure
The stability of whole loop.
The present invention proposes a kind of new AC-DC converting circuit structure, with rectigulator structure thought similarly, is all
Commutator and manostat are combined, to save the bulky capacitor after commutator.But it is different from rectigulator structure
It is to present invention employs three grids and intersect（cross-gate）The mode of Structural Self-Control avoids using MUX, solution
The reverse leakage flow problem of active diode structure of having determined, is worked in coordination with by the metal-oxide-semiconductor that high pass filter is connected with diode simultaneously
The Power supply rejection ability to improve LDO for the method for feedforward, reduces output ripple.The AC-DC converter of the present invention, is suitable for
In inexpensive radio source Transmission system, simple and practical it is easy to integrated and performance is higher, be particularly suitable for and biologic medical implantation
Device uses.
It is more than that the preferable enforcement to the present invention is illustrated, but the invention is not limited to described enforcement
Example, those of ordinary skill in the art also can make a variety of equivalent variations without prejudice on the premise of present invention spirit or replace
Change, these equivalent deformation or replacement are all contained in the application claim limited range.
Claims (4)
1. a kind of fully integrated AC-DC converter of high efficiency it is characterised in that：Including the first AC signal input port（AC1）、
Second AC signal input port（AC2）, the first linear voltage regulator（LLDO）, the second linear voltage regulator（RLDO）, ground connection output
Port, direct current output port（DC Output）With by the first transistor to the 6th transistor（M1～M6）Three grids of composition are handed over
Fork Structural Self-Control commutator, described first AC signal input port（AC1）Respectively with the first transistor（M1）Source electrode, second
Transistor（M2）Grid, third transistor（M3）Drain electrode and the 4th transistor（M4）Grid connect, described 3rd crystal
Pipe（M3）Source electrode and the 4th transistor（M4）Source electrode connect, described third transistor（M3）Grid and the 4th transistor
（M4）Drain electrode all with direct current output port（DC Output）Connect, described first linear voltage regulator（LLDO）It is connected in parallel to
4th transistor（M4）Source electrode and drain electrode between；Described second AC signal input port（AC2）Respectively with the first transistor
（M1）Grid, transistor seconds（M2）Source electrode, the 5th transistor（M5）Drain electrode and the 6th transistor（M6）Grid even
Connect, described 5th transistor（M5）Source electrode and the 6th transistor（M6）Source electrode connect, described 5th transistor（M5）Grid
Pole and the 6th transistor（M6）Drain electrode all with direct current output port（DC Output）Connect, described second linear voltage regulator
（RLDO）It is connected in parallel to the 6th transistor（M6）Source electrode and drain electrode between；Described the first transistor（M1）Drain electrode and second
Transistor（M2）Drain electrode all with ground connection output port be connected;
Described the first transistor（M1）To the 6th transistor（M6）Relation meet：If the first AC signal input port（AC1）
Voltage be more than direct current output port（DC Output）Voltage, then transistor seconds（M2）And third transistor（M3）All lead
Logical, the first transistor（M1）, the 4th transistor（M4）With the 5th transistor（M5）It is turned off；If the first AC signal input port
（AC1）Voltage be less than direct current output port（DC Output）Voltage, then transistor seconds（M2）And third transistor（M3）
It is turned off, the first transistor（M1）With the 4th transistor（M4）It is both turned on；If the second AC signal input port（AC2）Voltage
More than direct current output port（DC Output）Voltage, then the first transistor（M1）With the 5th transistor（M5）It is both turned on, second
Transistor（M2）, third transistor（M3）With the 6th transistor（M6）It is turned off；If the second AC signal input port（AC2）'s
Voltage is less than direct current output port（DC Output）Voltage, then the first transistor（M1）With the 5th transistor（M5）It is turned off,
Transistor seconds（M2）With the 6th transistor（M6）It is both turned on.
2. a kind of fully integrated AC-DC converter of high efficiency according to claim 1 it is characterised in that：Described First Line
Property manostat（LLDO）Or second linear voltage regulator（RLDO）Including first order amplifying circuit（1）, second level amplifying circuit（2）、
Third level amplifying circuit（3）, feedforward diode（4）, high pass filter（5）With miller compensation electric capacity（Cm）, the described first order puts
Big circuit（1）Including bias current mirror（11）, Differential input circuit（12）And current mirror load（13）, electricity is amplified in the described second level
Road includes common source and amplifies NMOSFET（21）With amplification current mirror（22）, described third level amplifying circuit includes the 7th transistor
（M7）And load（load）, described 7th transistor（M7）Source electrode respectively with feedforward diode（4）Negative electrode, common source amplify
NMOSFET（21）With bias current mirror（11）One end connect, described bias current mirror（11）The other end and Differential Input electricity
Road（12）Connect, described Differential input circuit（12）An input and load（load）Connect, described Differential input circuit
（12）Another input termination reference voltage, described Differential input circuit（12）Also with current mirror load（13）Connect, described electricity
Stream mirror load（13）Also respectively with miller compensation electric capacity（Cm）With amplification current mirror（22）Connect, described miller compensation electric capacity（Cm）
With direct current output port（DC Output）Connect；Described 7th transistor（M7）Grid respectively with feedforward diode（4）Sun
Pole, common source amplify NMOSFET（21）And high pass filter（5）Connect, described current mirror load（13）, amplify current mirror（22）With
High pass filter（5）All it is connected with ground connection output port, described common source amplifies NMOSFET（21）And high pass filter（5）Also equal
Connect input voltage VIN；Described 7th transistor（M7）Drain electrode respectively with load（load）With direct current output port（DC
Output）Connect.
3. a kind of fully integrated AC-DC converter of high efficiency according to claim 2 it is characterised in that：Described biased electrical
Stream mirror（11）For PMOS current mirror, described current mirror load（13）For NMOS current mirror, described Differential input circuit（12）For
PMOS differential pair pipe input circuit.
4. a kind of fully integrated AC-DC converter of high efficiency according to claim 3 it is characterised in that：Described first is brilliant
Body pipe（M1）And transistor seconds（M2）It is NMOS tube, described third transistor（M3）, the 4th transistor（M4）, the 5th crystal
Pipe（M5）, the 6th transistor（M6）With the 7th transistor（M7）It is PMOS.
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| CN201410570678.3A CN104333239B (en) | 2014-10-23 | 2014-10-23 | A kind of fully integrated AC DC transducer of high efficiency |
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| CN201410570678.3A CN104333239B (en) | 2014-10-23 | 2014-10-23 | A kind of fully integrated AC DC transducer of high efficiency |
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| CN104333239B true CN104333239B (en) | 2017-03-01 |
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| CN107623493A (en) * | 2017-09-13 | 2018-01-23 | 东南大学 | A kind of high efficiency high fidelity envelop modulator |
| CN110995026B (en) * | 2019-12-30 | 2021-10-19 | 南方科技大学 | Active rectifier |
| CN111211623B (en) * | 2020-01-23 | 2023-08-11 | 中山大学 | Transmitting circuit applied to wireless energy transmission system and control method |
| CN111181442B (en) * | 2020-01-23 | 2022-12-13 | 中山大学 | Self-adaptive piezoelectric energy collection interface circuit |
| WO2021208132A1 (en) * | 2020-04-14 | 2021-10-21 | 深圳技术大学 | Shared gate cross-coupling-based cmos rectification circuit |
| CN114236422A (en) * | 2021-12-16 | 2022-03-25 | 成都思瑞浦微电子科技有限公司 | Electric leakage detection circuit |
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