CN109039074A - A kind of rectification of no bridge three Boost power circuit - Google Patents
A kind of rectification of no bridge three Boost power circuit Download PDFInfo
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- CN109039074A CN109039074A CN201811068544.6A CN201811068544A CN109039074A CN 109039074 A CN109039074 A CN 109039074A CN 201811068544 A CN201811068544 A CN 201811068544A CN 109039074 A CN109039074 A CN 109039074A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
-
- 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
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
-
- 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
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
- H02M3/1586—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel switched with a phase shift, i.e. interleaved
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The invention discloses a kind of no bridges three to rectify Boost power circuit, include three rectification circuits, two Boost capacitors, storage capacitor, double Boost conversion circuits and feedback control driving unit, three rectification circuits charge respectively to two Boost capacitors to storage capacitor rectification charging, and in the positive and negative polarity chron of input voltage.Double Boost conversion circuits are overlapped in the positive and negative polarity chron of input voltage by the voltage on respective Boost inductance and Boost capacitor, are alternately charged to storage capacitor, realize Boost boost conversion function.To one diode of the charge circuit approach of Boost capacitor in three rectification circuits, non-bridge PFC is thus achieved the effect that.Reasonable arrangement inputs the link position of surge restraint circuit, makes its zero loss.Since the present invention continues to use the input structure of traditional BoostPFC, there is EMI effect more better than traditional non-bridge PFC circuits.
Description
Technical field
The present invention relates to one kind to have many advantages, such as that high efficiency, highly reliable, EMI low noise, anti-interference and Surge handling capability are strong
Switching power circuit, the input power factor correction to alternating current may be implemented, and the function for output of boosting.
Background technique
Electrical equipment is connected to the AC-DC power supply of AC network, need to meet IEC61000-3-2 to the strong of current harmonics
System requires.For different equipment and application, IEC61000-3-2 proposes Class A, Class B, Class C, Class D
Current harmonics limitation standard.
Current switch-type stabilized power technology, the realization to Single-phase PFC mainly use the scheme of Boost circuit (Fig. 1)
To cope with.
To realize high efficiency, non-bridge PFC and totem (TotemPole) pfc circuit also begin to use, and core is still
It is Boost circuit, since in the input circuit of traditional Boost PFC, two diodes of approach rectifier bridge improve as only way
One diode of diameter, therefore reduce the rectifier bridge loss of half, greatly increase efficiency.But it is expensive, and control is complicated,
Especially EMC performance is poor.
Traditional boost pfc circuit, such as Fig. 1, by full-wave rectification element D1 to input full-wave rectification.Boost circuit
Principle is that 1) Q1 conducting, inductance L1 are rectified to the voltage excitation energy storage of C2 by AC input.Two diodes of current pathway and one
Switch element.2) Q1 ends, and the induced potential and AC input on L1 are rectified to the voltage superposition on capacitor C2, fills to capacitor C1
Electricity.In this way, the voltage on capacitor C1 is greater than ac input voltage, therefore Boost is Boost topology.Three diodes of current pathway.Q1
Duty ratio controlled by feedback control driving unit, to reach voltage output (generally 380~400V) stable on capacitor C1.
Traditional boost pfc circuit, due to two diodes of input current approach rectifier bridge D1, therefore its loss is P=2*Vf*
Iavg, wherein Vf is the forward conduction voltage drop of a diode, and Iavg is the average current for flowing through diode.
The principle of efficient non-bridge PFC circuits, such as Fig. 2, non-bridge PFC is: when input voltage be positive polarity chron Q2 conducting,
Simultaneously: 1) Q1 is connected, and Boost inductance L1 and L2 is by ac input voltage excitation energy storage.Electric current is by way of two switch elements 2 of Q1, Q2)
Q1 ends, and the voltage superposition on induced potential and AC input Boost capacitor C2 on Boost inductance L1 and L2 fills capacitor C1
Electricity.In this way, the voltage on capacitor C1 is greater than ac input voltage, Boost Boost topology is completed.Electric current is by way of diode D2 and switch
Element Q2.D1 is the current bypass diode for preventing power initiation surge damage Q1, Q2, while also having anti-lightning, anti-pulse
It is loss-free in normal operating conditions Deng the effect for improving EMS.
In this way, non-bridge PFC circuits are than one diode of traditional Boost circuit saving or one diode of saving and use is opened
It closes element and replaces another diode.The diode saved can reduce the loss of P=Vf*Iavg.Further, using opening
It closes element and replaces another diode, since relatively low conducting resistance Rds (on) can be shown in middle low power power supply
Lower loss, and in powerful power supply, since the loss Vf*Iavg of diode is than switch element loss Irms2*Rds
(on) low, advantage is had more using diode.
Other than non-bridge PFC circuits control is complicated, in practical application, the maximum challenge of non-bridge PFC circuits is that EMI noise is asked
Topic, compared with traditional Boost circuit, this is to be floated caused by ground as AC input lines by the switch element of high-frequency work.
Summary of the invention
In view of the deficiencies of the prior art, goal of the invention of the invention is to provide a kind of with high efficiency, highly reliable, EMI
Low noise, it is anti-interference, Surge handling capability is strong the advantages that without bridge three rectify Boost power circuit, may be implemented to alternating current
Input power factor correction, and the function for output of boosting.
Goal of the invention of the invention is achieved through the following technical solutions:
A kind of no bridge three rectifies Boost power circuit, comprising storage capacitor, three rectification circuits, double Boost conversion circuits and
Feedback control driving unit；
Double Boost conversion circuits include the first Boost circuit and the second Boost circuit；
First Boost circuit includes the first Boost capacitor, the first Boost inductance, the first Boost switch element, first
Boost rectifier cell, when the first Boost switching elements conductive, the first Boost inductance, the first Boost switch element and first
Boost capacitor forms the voltage on the first Boost capacitor to the first circuit Boost of the first Boost induction charging；When first
When Boost switch element ends, the first Boost inductance, the first Boost rectifier cell and the first Boost capacitor, storage capacitor shape
It is right by the first Boost rectifier cell after the voltage superposition on the voltage and the first Boost capacitor on the first Boost inductance
2nd circuit Boost of storage capacitor charging；
Second Boost circuit includes the 2nd Boost capacitor, the 2nd Boost inductance, the 2nd Boost switch element, second
Boost rectifier cell, when the 2nd Boost switching elements conductive, the 2nd Boost inductance, the 2nd Boost switch element and second
Boost capacitor forms the voltage on the 2nd Boost capacitor to the 3rd circuit Boost of the 2nd Boost induction charging；When second
When Boost switch element ends, the 2nd Boost inductance, the 2nd Boost rectifier cell and the 2nd Boost capacitor, storage capacitor shape
It is right by the 2nd Boost rectifier cell after the voltage superposition on the voltage and the 2nd Boost capacitor on the 2nd Boost inductance
4th circuit Boost of storage capacitor charging；
Three rectification circuits include the first input rectification circuit for being rectified to input voltage, the first input rectifying electricity
Road and storage capacitor form the first commutating circuit to storage capacitor charging；When the polarity of input voltage is timing, the first input
The second commutating circuit to the first Boost capacitor charging that rectification circuit and the first Boost capacitor are formed；When the pole of input voltage
When property is negative, the first input rectification circuit and the 2nd Boost capacitor are formed and are rectified back to the third of the 2nd Boost capacitor charging
Road；Wherein, storage capacitor, the first Boost capacitor, the 2nd Boost capacitor one end and the first input rectification circuit rectification it is defeated
It is connected out with end；The other end of first Boost capacitor and the 2nd Boost capacitor is coupled respectively to corresponding input pole；
Storage capacitor supplies energy to load；
The feedback control driving unit is used to switch member according to certain frequency and the first Boost of the Chopper driving of duty ratio
The on and off of part and the 2nd Boost switch element, and the polarity for working as input voltage is timing, makes the second Boost circuit
Cut-off ends the first Boost circuit when the polarity of input voltage is negative.
The beneficial effects of the present invention are:
The rectification of no bridge three Boost power circuit provided by the invention is high-efficient, and low noise, EMC does very well, and can reach boosting
Reconvert output, can be realized active power factor correction.
Of the invention rectifies Boost power circuit without bridge three, includes storage capacitor, three rectification circuits, double Boost conversion electricity
Road and feedback control driving unit.Three rectification circuits are to storage capacitor rectification charging, and to two in double Boost conversion circuits
Boost capacitor does not charge in the input voltage positive and negative polarity time-division.Double Boost conversion circuits in the positive and negative polarity chron of input voltage,
It is overlapped by the voltage on respective Boost inductance and Boost capacitor, alternately charges to storage capacitor, realize Boost liter
Press function.The public rectifying device of three commutating circuits in three rectification circuits, to the charge circuit approach of Boost capacitor
Thus one diode has achieved the effect that without bridge (bridgeless) PFC.To the suppression circuit of input surge, it is arranged in three
The rational position of rectification circuit keeps it only effective in power initiation, and lossless in normal work, rectifies this without bridge three
Boost power circuit has more the advantage in efficiency and cost than traditional Boost circuit and non-bridge PFC circuits.Since no bridge three is whole
Stream Boost power circuit continues to use the input structure of traditional Boost PFC, has EMI more better than traditional non-bridge PFC circuits effect
Fruit.
The present invention has many advantages, such as that high efficiency, highly reliable, low EMI noise, anti-interference and Surge handling capability are strong.
Detailed description of the invention
Fig. 1 is traditional switching power circuit with Boost circuit.
Fig. 2 is the switching power circuit of traditional bridgeless Boost pfc circuit.
Fig. 3 is the embodiment that the three rectification anodes for rectifying Boost power circuit without bridge three described in embodiment one connect altogether
Structural schematic diagram.
Fig. 4 is the embodiment that the three rectification negative terminals for rectifying Boost power circuit without bridge three described in embodiment one connect altogether
Structural schematic diagram.
Fig. 5 is the reality that the three rectification positive and negative terminals for rectifying Boost power circuit without bridge three described in embodiment one connect altogether respectively
Apply a structural schematic diagram.
Fig. 6 a is the three commutating circuit schematic diagrames for rectifying Boost power circuit described in embodiment one without bridge three.
Fig. 6 b is the current loop figure for rectifying Boost power circuit in running order 1 described in embodiment one without bridge three.
Fig. 6 c is the current loop figure for rectifying Boost power circuit in running order 2 described in embodiment one without bridge three.
Fig. 6 d is the current loop figure for rectifying Boost power circuit in running order 3 described in embodiment one without bridge three.
Fig. 6 e is the current loop figure for rectifying Boost power circuit in running order 4 described in embodiment one without bridge three.
Fig. 7 is the waveform diagram for rectifying the working condition 1,2 of Boost power circuit described in embodiment one without bridge three.
Fig. 8 is the circuit diagram for rectifying Boost power circuit described in embodiment two without bridge three.
Fig. 9 is the circuit diagram for rectifying Boost power circuit described in embodiment three without bridge three.
Figure 10 is the circuit diagram for rectifying Boost power circuit described in example IV without bridge three.
Figure 11 is the circuit diagram for rectifying Boost power circuit described in embodiment five without bridge three.
Figure 12 is the circuit diagram for rectifying Boost power circuit described in embodiment six without bridge three.
Figure 13 is the circuit diagram for rectifying Boost power circuit described in embodiment seven without bridge three.
Figure 14 is the circuit diagram for rectifying Boost power circuit described in embodiment eight without bridge three.
Figure 15 is the circuit diagram for rectifying Boost power circuit described in embodiment nine without bridge three.
Figure 16 is the circuit diagram for rectifying Boost power circuit described in embodiment ten without bridge three.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
<embodiment one>
A kind of no rectification of bridge three Boost power circuit, shown in Figure 3 shown in the present embodiment, includes three rectification circuits
100, double Boost conversion circuits 200, feedback control driving unit 300, storage capacitor C1.
Double Boost conversion circuits include the first Boost circuit and the second Boost circuit.
First Boost circuit include the first Boost capacitor C2, the first Boost inductance L1, the first Boost switch element Q1,
First Boost rectifier cell (selects diode D2), when the first Boost switch element Q1 conducting, the first Boost inductance L1,
First Boost switch element Q1 and the first Boost capacitor C2 forms the voltage on the first Boost capacitor C2 to the first Boost electricity
Feel the first circuit Boost of L1 charging；When the cut-off of the first Boost switch element, the first Boost inductance L1, the first Boost are whole
Fluid element and the first Boost capacitor, storage capacitor C1 are formed on voltage and the first Boost capacitor on the first Boost inductance L1
Voltage superposition after, by the first Boost rectifier cell, to the 2nd circuit Boost of storage capacitor C1 charging.
Second Boost circuit include the 2nd Boost capacitor C3, the 2nd Boost inductance L2, the 2nd Boost switch element Q2,
2nd Boost rectifier cell (selects diode D3)；When the 2nd Boost switching elements conductive, the 2nd Boost inductance L2,
Two Boost switch elements and the 2nd Boost capacitor C3 form the voltage on the 2nd Boost capacitor C3 to the 2nd Boost inductance L2
3rd circuit Boost of charging；When the cut-off of the 2nd Boost switch element, the 2nd Boost inductance L2, the 2nd Boost rectification member
Part and the 2nd Boost capacitor C3, storage capacitor C1 are formed on voltage and the 2nd Boost capacitor C3 on the 2nd Boost inductance L2
Voltage superposition after, by the 2nd Boost rectifier cell, to the 4th circuit Boost of storage capacitor C1 charging.
Three rectification circuits include the first input rectification circuit D1 for being rectified to input voltage, the first input rectifying
Circuit and storage capacitor C1 form the first commutating circuit to storage capacitor C1 charging, the first input rectification circuit D1 and first
The second commutating circuit to the first Boost capacitor C2 charging that Boost capacitor C2 is formed, the first input rectification circuit D1 and second
Boost capacitor C3 forms the third commutating circuit to the 2nd Boost capacitor C3 charging；Wherein, storage capacitor C1, the first Boost
The rectification output of one end and the first input rectification circuit of capacitor C2, the 2nd Boost capacitor C3 is connected with end；First Boost
The other end of capacitor C2 and the 2nd Boost capacitor C3 are coupled respectively to corresponding input pole.Fig. 3 is storage capacitor C1, the first Boost
The example that capacitor C2, the 2nd Boost capacitor C3 are connected with the first input rectification circuit D1 anode.Storage capacitor C1, first
Boost capacitor C2, the 2nd Boost capacitor C3 can also be connected with the first input rectification circuit D1 with negative terminal, such as Fig. 4；It can also be with
One anode is connected, and a negative terminal is connected to form, such as Fig. 5.
The storage capacitor C1 supplies energy to load.
The feedback control driving unit is used to switch member according to certain frequency and the first Boost of the Chopper driving of duty ratio
The on and off of part and the 2nd Boost switch element, and the first Boost circuit and the second Boost circuit are controlled, make its basis
The positive-negative polarity of input voltage works alternatively respectively and ends.
For purposes of illustration only, in the present embodiment the first input rectification circuit select as an example the most common bridge rectifier and
Diode composition, it is other can reach can replace bridge rectifier with the electronic component of bridge rectifier and diode equivalent effect
And diode.
Boost power circuit is rectified according to above-mentioned no bridge three, it includes in three parts that no bridge three, which rectifies Boost power circuit,
Hold.
First part, three rectification circuits 100: referring to 1. shown in part, first be made of bridge rectifier is defeated in Fig. 6 a
Enter rectification circuit D1 and full-wave rectification is carried out to single-phase ac input voltage, energy storage is in storage capacitor C1, as the first Boost
After circuit, the work of the second Boost circuit, the energy that the first Boost circuit, the second Boost circuit export makes on storage capacitor C1
Voltage be greater than AC input crest voltage, ac input voltage no longer to first capacitor C1 charge；When the first Boost circuit, second
The energy output of Boost circuit is not enough to make voltage on first capacitor C1 to be greater than AC input crest voltage, and AC input can continue
It charges to first capacitor C1.Referring in Fig. 6 a 2. shown in part, the first input rectification circuit D1 to the first Boost capacitor C2 half
Wave rectification, charges to the first Boost capacitor C2.Referring to 3. shown in part, the first input rectification circuit D1 is in Fig. 6 a
The halfwave rectifier of two Boost capacitor C3, charges to the 2nd Boost capacitor C3.Due to the first Boost capacitor C2, second
The capacity of Boost capacitor C3 is small, voltage thereon, substantially close to the waveform after the halfwave rectifier of ac input voltage.In active PFC
In Boost circuit, the first Boost capacitor C2, the 2nd Boost capacitor C3 main function be to filter out HF switch noise, to subtract
Small EMI interference.
Second part, double Boost conversion circuit parts 200:
In the present embodiment, the first Boost inductance L1 and the 2nd Boost inductance L2 can work in discontinuous current mould
Formula (discontinuous current mode:DCM), can also work in continuous current mode (continuous
Current mode:CCM), it is illustrated by taking CCM as an example below.
Working principle:
1) working condition 1: when input voltage is positive voltage, the first Boost switch element Q1 conducting, as shown in Figure 6 b.
It is the voltage of energy storage on storage capacitor C1, is also supplied with the output voltage of load.Reflect on first Boost capacitor C2
Be rectification after AC transient voltage.
Voltage on the first Boost capacitor C2 of reflection ac input voltage variation, by the first Boost switch element
Q1 flows into the first Boost inductance L1, and circuit and direction are as shown by solid arrows, and the energy storage of Boost type boost conversion is
In one Boost inductance L1.This is the first circuit Boost.
Working condition 2: when input voltage is positive voltage, the first Boost switch element Q1 cut-off, as fig. 6 c..
First Boost switch element Q1 cut-off, the energy being stored in the first Boost inductance L1 are switched in the first Boost
Moment after element Q1 cut-off, after generating the voltage superposition on induced potential, with the first Boost capacitor C2, by the first Boost
Rectifier cell (diode D2) charges to storage capacitor C1, completes the boost conversion (such as solid arrow) of the first Boost circuit.
This is the 2nd circuit Boost.
When the energy of the first Boost inductance L1 enter be circulated back to working condition 1 next time when, the first Boost inductance
The energy of L1 does not discharge, and is continuous mode.Before the energy of inductance L1 is entering and is circulated back to working condition 1 next time, the
The energy of one Boost inductance L1 has discharged, then is discontinuous mode.
So from working condition 1 to working condition 2, circulation is repeatedly.
2) working condition 3: when input voltage is negative voltage, the first Boost switch element Q2 conducting, as shown in fig 6d.
Energy on the 2nd Boost capacitor C3 of reflection ac input voltage variation, by the 2nd Boost switch element
Q2 flows into the 2nd Boost inductance L2, and circuit and direction are as shown by solid arrows, and the energy storage of Boost type boost conversion is
In two Boost inductance L2.This is the 3rd circuit Boost.
Working condition 4: when input voltage is negative voltage, second switch element Q2 cut-off, as shown in fig 6e..
Second switch element Q2 cut-off, the energy being stored in the 2nd Boost inductance L2 end in second switch element Q2
Moment afterwards, after generating the voltage superposition on induced potential, with the 2nd Boost capacitor C3, by the 2nd Boost rectifier cell
(diode D3) charges to storage capacitor C1, completes the boost conversion (such as solid arrow) of the second Boost circuit.This is the 4th
The circuit Boost.
So from working condition 3 to working condition 4, circulation is repeatedly.
First Boost circuit, the second Boost circuit pass through the first Boost inductance L1, the 2nd Boost inductance L2, first
Boost capacitor C2, the 2nd Boost capacitor C3 are respectively in the on and off of the first Boost switch element Q1, the 2nd BoostQ2
Period absorbs energy from AC input according to the voltage and phase change of AC, makes AC input current synchronization and AC input electricity
Pressure, realizes the function of PFC in a manner of Boost.
Fig. 7 is when inputting positive voltage, and the first Boost circuit is from working condition 1 to the working waveform figure of working condition 2.
It when inputting negative voltage, is worked by the second Boost circuit, waveform is consistent with the first Boost circuit.
Part III, feedback control driving unit 300: it controls the first Boost switch element and the 2nd Boost switch member
The on and off of part also controls the first Boost circuit and the second Boost circuit in the positive negative of input voltage, respectively corresponds
It works alternatively or ends.Boost feedback control driving unit can be by hardware realization: being made of sample circuit, operational amplifier
Automatic control circuit, comparator and triangular-wave generator composition, obtain PWM or PFM Chopper driving output.Boost feedback control
MCU also can be used in driving unit processed, and DSP etc. carries out automatically controlling PWM or PFM with software；The duty ratio of PWM and the frequency of PFM
Rate is the controlling element for controlling output power, and output power refers to the voltage, electric current and their product of output, that is, provide how much
Watt power, practical application also divides constant current output, constant voltage output, constant power output, to the electric current, voltage and power of concern
It is controlled
<embodiment two>
The present embodiment and the difference of embodiment one are: the first Boost rectifier cell and the selection of the 2nd Boost rectifier cell are opened
Close element, respectively switch element Q3 and switch element Q4, referring to Fig. 8, the conducting of switch element Q3 and switch element Q4 with cut
Only controlled by feedback control driving unit.
The conduction loss of switch element is Irms2* Rds (on), the conduction loss of rectifier cell are Vf*Iavg.
Current device technology, since the Rds (on) of switch element FET etc. becomes small, therefore in middle low power application,
It is low due to being lost, it be used to substitute rectifier cell to improve efficiency, the disadvantage is that price, needs additional drive control electricity
Road.And in high-power applications, since the Vf value of rectifier cell does not have too many variation with the increase of electric current, therefore in high current
In, loss is lower, more efficient.
If designing the work of Boost inductance under discontinuous current mode, after its electric current zero, storage capacitor is utilized
Voltage by Boost rectifier cell (switch element) to the resonance current of Boost capacitor and Boost induction charging, and control
The cut-off of Boost rectifier cell makes Boost switch element close to zero electricity after the parasitic capacitance discharge of Boost switch element
Press off logical, i.e. realization Sofe Switch ZVS.
<embodiment three>
The present embodiment is to increase the first BUCK inductance Ls1, the 2nd BUCK inductance Ls2 and filter on the basis of example 1
Wave capacitor Cs1, the first Boost switch element Q1 and the first Boost rectifier cell (selecting diode D2) the first BUCK bridge of composition
Arm, the first BUCK bridge arm and the first BUCK inductance Ls1 and filter capacitor Cs1 constitute the first BUCK converter, the first BUCK conversion
Device is used to carry out the voltage on storage capacitor BUCK conversion output；2nd Boost switch element Q2 and the 2nd Boost rectification member
Part (selecting diode D3) the 2nd BUCK bridge arm of composition, the 2nd BUCK bridge arm and the 2nd BUCK inductance and filter capacitor Cs1 are constituted
2nd BUCK converter, the 2nd BUCK converter are used to carry out the voltage on storage capacitor BUCK conversion output, see Fig. 9 institute
Show.
<example IV>
The present embodiment is to increase the first BUCK inductance Ls1, the 2nd BUCK inductance Ls2 and filter on the basis of example 2
Wave capacitor Cs1, the first Boost switch element Q1 and the first BUCK of the first Boost rectifier cell (selecting switch element Q3) composition
Bridge arm, the first BUCK bridge arm and the first BUCK inductance Ls1 and filter capacitor Cs1 constitute the first BUCK converter, and the first BUCK turns
Parallel operation is used to carry out the voltage on storage capacitor BUCK conversion output；2nd Boost switch element Q2 and the 2nd Boost rectification
Element (selecting switch element Q4) the 2nd BUCK bridge arm of composition, the 2nd BUCK bridge arm and the 2nd BUCK inductance and filter capacitor Cs1
The 2nd BUCK converter is constituted, the 2nd BUCK converter is used to carry out the voltage on storage capacitor BUCK conversion output, sees figure
Shown in 10.
<embodiment five>
The present embodiment is on the basis of example 2 also comprising main transformer, output rectification circuit and filter circuit.The
One Boost switch element Q1 and the first Boost rectifier cell (selecting switch element Q3) first half-bridge bridge arm of composition, the first half-bridge
The circuit of bridge arm and main transformer, output rectification circuit and filter circuit constitutes the first half-bridge DC-DC converter, the first half-bridge
DC-DC converter is used to carry out the voltage on storage capacitor DC-DC conversion output；2nd Boost switch element Q2 and second
Boost rectifier cell (selecting switch element Q4) second half-bridge bridge arm of composition, the second half-bridge bridge arm and main transformer, output rectify
The circuit of circuit and filter circuit constitutes the second half-bridge DC-DC converter, and the second half-bridge DC-DC converter is used for storage capacitor
On voltage carry out DC-DC conversion output.Wherein the first half-bridge DC-DC circuit and the second half-bridge DC-DC circuit can drive respectively
Dynamic a main transformer T1, main transformer T2, can also by main transformer T1, main transformer T2 are synthesized a transformer,
First half-bridge bridge arm, the second half-bridge bridge arm respectively drive two groups of primary coils of transformer.Main transformer can be by more than one
Transformer form in series and parallel, to increase the power of DC-DC.Ds1~Ds3, Ls1 and Cs1 constitute output rectifier and filter.
Lr1, Cr1 are the resonant network of the first half-bridge DC-DC converter, and Lr2, Cr2 are the Resonance Neural Network of the second half-bridge DC-DC converter
Network.Referring to Figure 11.
<embodiment six>
The present embodiment is on the basis of example 2 also comprising main transformer, and the first Boost circuit also includes third
Boost switch element Q5, the 3rd Boost rectifier cell Q7 and the 3rd Boost inductance L3, the second Boost circuit also include the 4th
Boost switch element Q6, the 4th Boost rectifier cell Q8 and the 4th Boost inductance L4.First Boost switch element Q1 and
One Boost rectifier cell (selecting switch element Q3) first full-bridge bridge arm of composition, the first full-bridge bridge arm drive the first Boost electricity
Feel L1；3rd Boost switch element Q5 and the 3rd Boost rectifier cell (selecting switch element Q7) second full-bridge bridge arm of composition,
The second full-bridge bridge arm drives the 3rd Boost inductance L3, the 3rd Boost switch element Q5, the 3rd Boost rectifier cell Q7 and the
The working principle of three Boost inductance L3 is the same as the first Boost circuit.2nd Boost switch element Q2 and the 2nd Boost rectifier cell
(selecting switch element Q4) composition third full-bridge bridge arm, the third full-bridge bridge arm drive the 2nd Boost inductance L2；4th Boost
Switch element Q6 and the 4th Boost rectifier cell (selecting switch element Q8) the 4th full-bridge bridge arm of composition, the 4th full-bridge bridge arm
Drive the 4th Boost inductance L4, the work of the 4th Boost switch element Q6, the 4th Boost rectifier cell and the 4th Boost inductance
Make principle with the second Boost circuit.First full-bridge bridge arm, the second full-bridge bridge arm and main transformer form the first full-bridge DC-DC electricity
Road, the first full-bridge DC-DC circuit are used to carry out the voltage on storage capacitor DC-DC conversion output；Third full-bridge bridge arm, the 4th
Full-bridge bridge arm and main transformer form the second full-bridge DC-DC circuit, and the second full-bridge DC-DC circuit is used for the electricity on storage capacitor
Pressure carries out DC-DC conversion output；Wherein the first full-bridge DC-DC circuit and the second full-bridge DC-DC circuit can respectively drive one
Main transformer T1 and main transformer T2, main transformer T1 and main transformer T2 can also synthesize a transformer, complete by first
Bridge DC-DC circuit, the second full-bridge DC-DC circuit respectively drive two groups of primary coils of transformer.Main transformer can be by one
Above transformer forms in series and parallel, to increase the power of DC-DC.Ds1~Ds3, Ls1 and Cs1 constitute output rectification filter electricity
Road.First full-bridge DC-DC circuit and the second full-bridge DC-DC circuit staggeredly drive respective two-way Boost inductance L1 and L3, and
L2 and L4 constitutes alternating expression Boost circuit.3rd Boost switch element Q5, the 3rd Boost rectifier cell (select switch element
Q7), the on and off of the 4th Boost switch element Q6, the 4th Boost rectifier cell (selecting switch element Q8) is by feedback control
Driving unit control processed.Referring to Figure 12.
<embodiment seven>
The present embodiment is in the difference of embodiment one, and series connection prevents the defeated of inrush current on the first commutating circuit
Enter surge limiting circuit Z1, the moment surge current inputted when inhibiting power initiation is shown in Figure 13.With reference to Fig. 6 a~
6e, it is seen that surge limiting circuit Z1 is not or not the second commutating circuit, third commutating circuit and first to fourth circuit Boost for input
In, it is zero loss when being worked normally after starting so only thering is electric current to flow through in power initiation.Surge limitation electricity is inputted simultaneously
Road Z1 can only use the resistance that can generally resist surge, at low cost, and the resistance of big resistance value is selected to can reduce starting surge electricity
Stream is lost without increasing, and there is no the design compromises of starting surge current and efficiency and power initiation ability, improves power supply
Characteristic.The source of this more rectification input structure, with the thermistor of loss high in traditional Boost type AC-DC or valuableness
Relay circuit is compared, and efficiency is improved, and reduces temperature, and reduce cost.This difference is suitable for every other embodiment.
The working principle of the present embodiment is consistent with embodiment one.
<embodiment eight>
The present embodiment and the difference of embodiment one are: when being applied to three-phase input, including three groups of double Boost conversion electricity
Road, the first input rectification circuit are to commutating circuit, the Yi Ji of contained three groups of Boost capacitors in described three groups double Boost circuits
One input rectification circuit is to the commutating circuit of storage capacitor, three groups of double Boost conversion circuits and to three groups of Boost capacitors
Commutating circuit is respectively used to make Boost boost conversion to a single-phase input in three-phase input.In this way, three groups of Boost conversions
Circuit is respectively to each single-phase power factor correction of three-phase input, to reach the function of three-phase PFC.In addition, with the 7th
Embodiment is the same, and the position of the input surge limiting circuit Z1 of reasonable arrangement keeps it lossless in power work.
The double Boost units of each of the present embodiment and three rectification circuit working principles are consistent with embodiment one.
<embodiment nine>
The present embodiment and the difference of embodiment one are: also comprising the first impedance circuit Z2 and the second impedance circuit Z3, first
Impedance circuit Z2 is located in the circuit branch of the first Boost capacitor and input line, and with the first commutating circuit not overlapping；Second
Impedance circuit Z3 is located in the circuit branch of each 2nd Boost capacitor and input line, and with the first commutating circuit not overlapping.The
One impedance circuit, the second impedance circuit can be inductance or be common mode inductance part.The resistance of first impedance circuit Z2 and second
Reactive circuit Z3 forces input nonlinearities signal to switch to the first commutating circuit of relatively low impedance, is absorbed by storage capacitor.So protect
Double Boost conversion circuits and its load have been protected, the EMS ability and reliability of power supply are improved.Referring to Figure 15.This difference is suitable for
Every other embodiment.
<embodiment ten>
The present embodiment and the difference of embodiment one are: also including and the first Boost inductance, the 2nd Boost inductance, first
The concatenated more than one current detection circuit of one or more of Boost switch element and the 2nd Boost switch element
CS1, Cs2, CS3, CS4, to obtain, the current parameters of Boost conversion circuit feed back to feedback control and driving unit 300. is practical
Using can be the current sampling selected to Boost switch element, it is also possible to Boost inductive current sampling, or both
Together.Current sampling device can be resistance, be also possible to current transformer.Referring to Figure 16.
More than, using drawings and embodiments, the present invention is described.But the present invention is not limited to above state
Bright embodiment.Those skilled in the art correspond to and need, can make various in the objective and range of essence of the invention
The combination and deformation of various kinds.These deformations or application also belong to technical scope of the invention.For example, being mentioned in the present invention
Boost capacitor, Boost inductance can be one, be also possible to multiple series-parallel combinations, and mentioned circuit can be discrete component
Composition is also possible to multiple element composition.
Claims (12)
1. a kind of no bridge three rectifies Boost power circuit, include storage capacitor, three rectification circuits, double Boost conversion circuits and anti-
Feedback control driving unit, it is characterised in that:
Double Boost conversion circuits include the first Boost circuit and the second Boost circuit；
First Boost circuit includes the first Boost capacitor, the first Boost inductance, the first Boost switch element, first
Boost rectifier cell, when the first Boost switching elements conductive, the first Boost inductance, the first Boost switch element and first
Boost capacitor forms the voltage on the first Boost capacitor to the first circuit Boost of the first Boost induction charging；When first
When Boost switch element ends, the first Boost inductance, the first Boost rectifier cell and the first Boost capacitor, storage capacitor shape
It is right by the first Boost rectifier cell after the voltage superposition on the voltage and the first Boost capacitor on the first Boost inductance
2nd circuit Boost of storage capacitor charging；
Second Boost circuit includes the 2nd Boost capacitor, the 2nd Boost inductance, the 2nd Boost switch element, second
Boost rectifier cell, when the 2nd Boost switching elements conductive, the 2nd Boost inductance, the 2nd Boost switch element and second
Boost capacitor forms the voltage on the 2nd Boost capacitor to the 3rd circuit Boost of the 2nd Boost induction charging；When second
When Boost switch element ends, the 2nd Boost inductance, the 2nd Boost rectifier cell and the 2nd Boost capacitor, storage capacitor shape
It is right by the 2nd Boost rectifier cell after the voltage superposition on the voltage and the 2nd Boost capacitor on the 2nd Boost inductance
4th circuit Boost of storage capacitor charging；
Three rectification circuit includes the first input rectification circuit for being rectified to input voltage, the first input rectifying electricity
Road and storage capacitor form the first commutating circuit to storage capacitor charging；When the polarity of input voltage is timing, the first input
The second commutating circuit to the first Boost capacitor charging that rectification circuit and the first Boost capacitor are formed；When the pole of input voltage
When property is negative, the first input rectification circuit and the 2nd Boost capacitor are formed and are rectified back to the third of the 2nd Boost capacitor charging
Road；Wherein, storage capacitor, the first Boost capacitor, the 2nd Boost capacitor one end and the first input rectification circuit rectification it is defeated
It is connected out with end；The other end of first Boost capacitor and the 2nd Boost capacitor is coupled respectively to corresponding input pole；
The storage capacitor supplies energy to load；
The feedback control driving unit be used for according to certain frequency and the first Boost switch element of the Chopper driving of duty ratio and
The on and off of 2nd Boost switch element, and the polarity for working as input voltage is timing, ends the second Boost circuit,
When the polarity of input voltage is negative, end the first Boost circuit.
2. a kind of no bridge three according to claim 1 rectifies Boost power circuit, it is characterised in that the first Boost
Rectifier cell and the 2nd Boost rectifier cell select switch element, and are driven by the feedback control driving unit.
3. a kind of no bridge three according to claim 1 rectifies Boost power circuit, it is characterised in that also include the first BUCK
Inductance, the 2nd BUCK inductance and filter capacitor, the first Boost switch element and the first Boost rectifier cell composition first
BUCK bridge arm, the first BUCK bridge arm and the first BUCK inductance and filter capacitor constitute the first BUCK converter, the first BUCK conversion
Device is used to carry out the voltage on storage capacitor BUCK conversion output；The 2nd Boost switch element and the 2nd Boost rectification
Element forms the 2nd BUCK bridge arm, the 2nd BUCK bridge arm and the 2nd BUCK inductance and filter capacitor constitutes the 2nd BUCK converter,
2nd BUCK converter is used to carry out the voltage on storage capacitor BUCK conversion output.
4. a kind of no bridge three according to claim 2 rectifies Boost power circuit, it is characterised in that also include the first BUCK
Inductance, the 2nd BUCK inductance and filter capacitor, the first Boost switch element and the first Boost rectifier cell composition first
BUCK bridge arm, the first BUCK bridge arm and the first BUCK inductance and filter capacitor constitute the first BUCK converter, the first BUCK conversion
Device is used to carry out the voltage on storage capacitor BUCK conversion output；The 2nd Boost switch element and the 2nd Boost rectification
Element forms the 2nd BUCK bridge arm, the 2nd BUCK bridge arm and the 2nd BUCK inductance and filter capacitor constitutes the 2nd BUCK converter,
2nd BUCK converter is used to carry out the voltage on storage capacitor BUCK conversion output.
5. a kind of no bridge three according to claim 2 rectifies Boost power circuit, it is characterised in that also include main transformer pressure
Device, output rectification circuit and filter circuit, the first Boost switch element and the first Boost rectifier cell composition the first half
The circuit of bridge bridge arm, the first half-bridge bridge arm and main transformer, output rectification circuit and filter circuit constitutes the first half-bridge DC-DC and turns
Parallel operation, the first half-bridge DC-DC converter are used to carry out the voltage on storage capacitor DC-DC conversion output；2nd Boost
Switch element and the 2nd Boost rectifier cell form the second half-bridge bridge arm, the second half-bridge bridge arm and main transformer, output rectified current
The circuit of road and filter circuit constitutes the second half-bridge DC-DC converter, and the second half-bridge DC-DC converter is used for storage capacitor
Voltage carry out DC-DC conversion output, wherein the first half-bridge DC-DC circuit and the second half-bridge DC-DC circuit driven are same
A main transformer respectively drives at least one main transformer.
6. a kind of no bridge three according to claim 2 rectifies Boost power circuit, it is characterised in that also include main transformer pressure
Device, first Boost circuit also include the 3rd Boost switch element, the 3rd Boost rectifier cell and the 3rd Boost inductance,
Second Boost circuit also includes the 4th Boost switch element, the 4th Boost rectifier cell and the 4th Boost inductance, and
Three Boost rectifier cells and the 4th Boost rectifier cell all select switch element, the first Boost switch element and the first Boost
Rectifier cell forms the first full-bridge bridge arm, which drives the first Boost inductance；3rd Boost switch element and
3rd Boost rectifier cell forms the second full-bridge bridge arm, which drives the 3rd Boost inductance；2nd Boost is opened
It closes element and the 2nd Boost rectifier cell forms third full-bridge bridge arm, which drives the 2nd Boost inductance；The
Four Boost switch elements and the 4th Boost rectifier cell form the 4th full-bridge bridge arm, the 4th full-bridge bridge arm driving the 4th
Boost inductance；First full-bridge bridge arm, the second full-bridge bridge arm and main transformer form the first full-bridge DC-DC circuit, the first full-bridge
DC-DC circuit is used to carry out the voltage on storage capacitor DC-DC conversion output；Third full-bridge bridge arm, the 4th full-bridge bridge arm and
Main transformer forms the second full-bridge DC-DC circuit, and the second full-bridge DC-DC circuit is used to carry out DC- to the voltage on storage capacitor
DC conversion output；Wherein the first full-bridge DC-DC circuit and the same main transformer of the second full-bridge DC-DC circuit driven or
Respectively drive at least one main transformer.
7. a kind of no bridge three according to claim 1 rectifies Boost power circuit, it is characterised in that be applied to three-phase input
When, comprising three groups of double Boost conversion circuits, the first input rectification circuit to three groups contained in described three groups double Boost circuits
The commutating circuit of the commutating circuit of Boost capacitor and the first input rectification circuit to storage capacitor, described three groups double Boost
Conversion circuit and to the commutating circuit of three groups of Boost capacitors be respectively used to in three-phase input a single-phase input make
Boost boost conversion.
8. a kind of no bridge three according to claims 1 to 7 rectifies Boost power circuit, it is characterised in that also comprising input
Surge limiting circuit is located in the first commutating circuit, and returns with all second commutating circuits, third commutating circuit, the first Boost
Road, the 2nd circuit Boost, the 3rd circuit Boost, the 4th circuit Boost not overlapping.
9. a kind of no bridge three according to claims 1 to 7 rectifies Boost power circuit, it is characterised in that also include first
Impedance circuit and the second impedance circuit, the first impedance circuit are located in the circuit branch of each first Boost capacitor and input line, and
With the first commutating circuit not overlapping；Second impedance circuit is located in the circuit branch of each 2nd Boost capacitor and input line, and
With the first commutating circuit not overlapping.
10. a kind of no bridge three according to claim 9 rectifies Boost power circuit, it is characterised in that first impedance
Circuit, the second impedance circuit be inductance or be common mode inductance part.
11. a kind of no bridge three according to claims 1 to 7 rectifies Boost power circuit, it is characterised in that also comprising difference
With one in the first Boost inductance, the 2nd Boost inductance, the first Boost switch element and the 2nd Boost switch element
A or multiple concatenated more than one current detection circuits, current detection circuit provide current feedback and drive list to feedback control
Member.
12. a kind of no bridge three according to claim 11 rectifies Boost power circuit, it is characterised in that the current detecting
Circuit is impedance or is current transformer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811068544.6A CN109039074A (en) | 2018-09-13 | 2018-09-13 | A kind of rectification of no bridge three Boost power circuit |
| PCT/CN2019/105552 WO2020052617A1 (en) | 2018-09-13 | 2019-09-12 | Bridgeless triple-rectifier boost power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811068544.6A CN109039074A (en) | 2018-09-13 | 2018-09-13 | A kind of rectification of no bridge three Boost power circuit |
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| CN109039074A true CN109039074A (en) | 2018-12-18 |
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|---|---|---|---|
| CN201811068544.6A Pending CN109039074A (en) | 2018-09-13 | 2018-09-13 | A kind of rectification of no bridge three Boost power circuit |
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| WO (1) | WO2020052617A1 (en) |
Cited By (4)
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| WO2020052617A1 (en) * | 2018-09-13 | 2020-03-19 | 上海推拓科技有限公司 | Bridgeless triple-rectifier boost power supply circuit |
| CN111181379A (en) * | 2020-01-23 | 2020-05-19 | 福州大学 | Reverse winding design method for common-mode EMI suppression of Boost circuit |
| CN113691119A (en) * | 2021-10-25 | 2021-11-23 | 苏州明纬科技有限公司 | Three-phase power factor correcting device |
| CN114994395A (en) * | 2022-08-05 | 2022-09-02 | 成都国佳电气工程有限公司 | Passive railway high-voltage cable related current detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI783536B (en) * | 2021-06-21 | 2022-11-11 | 群光電能科技股份有限公司 | Power supply with lightning protection |
| EP4123893A1 (en) * | 2021-07-23 | 2023-01-25 | Infineon Technologies Austria AG | Active rectifier in switched-mode power supply |
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| WO2020052617A1 (en) | 2020-03-19 |
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