CN107395037A - A kind of adjustable High Power Factor bridge synchronization rectification circuit of output voltage - Google Patents
A kind of adjustable High Power Factor bridge synchronization rectification circuit of output voltage Download PDFInfo
- Publication number
- CN107395037A CN107395037A CN201710649005.0A CN201710649005A CN107395037A CN 107395037 A CN107395037 A CN 107395037A CN 201710649005 A CN201710649005 A CN 201710649005A CN 107395037 A CN107395037 A CN 107395037A
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- Prior art keywords
- power tube
- circuit
- drain electrode
- rectification circuit
- inductance
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
-
- 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
- H02M7/2195—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 the switches being synchronously commutated at the same frequency of the AC input voltage
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The present invention relates to a kind of adjustable High Power Factor bridge synchronization rectification circuit of output voltage, including transformer, exchange lateral capacitance, PFC inductance, rectification circuit, drive control circuit and filter circuit, transformer is output to rectification circuit after carrying out one-level decompression isolation, diode is replaced by MOSFET in bridge rectifier, and the MOSFET of an Opposite direction connection is added on each bridge arm, drive control circuit gathers input voltage from the primary side of transformer, current signal, output voltage is gathered from the output end of filter circuit, current signal, so as to produce MOSFET control signal, by the Delayed conducting time for controlling two reverse MOSFET, realize the flexible modulation of output voltage；PFC is realized by exchanging lateral capacitance and PFC inductance.The present invention has the advantages of circuit structure is simple, reliability is high, power factor is high, efficiency high, the application scenario especially suitable for exchange input, low-voltage, high-current output.
Description
Technical field
The present invention relates to Power Management Design field, and in particular to a kind of adjustable High Power Factor bridge type synchronous of output voltage is whole
Current circuit.
Background technology
Common diode rectification technology is widely used, but also has the shortcomings that obvious：First, output voltage is unstable
Fixed, when civil power is in low side or high terminal voltage, corresponding rectifier output voltage often exceeds use range, after causing
Level equipment input undervoltage because that can not start or be damaged because of input overvoltage；Second, loss is big, the conduction voltage drop of diode is big,
In the case where output current is big, the cost and difficulty of product thermal design are added；Third, poor controllability, diode rectification is being sent out
In the case of raw failure（Such as input overvoltage/undervoltage, output overcurrent or short circuit）, it is impossible to control rectification circuit to close output, can cause
Device damage.The uncontrollable rectification of diode is replaced with into efficient N-channel MOS FET synchronous rectifications, utilizes MOSFET electric conductions
The advantages of low is hindered, loss can be effectively reduced and improve efficiency.In the case where industrial frequency AC inputs, MOSFET switch frequency
Rate is low, and caused switch interference is also smaller.Input voltage is reduced to conjunction by the Industrial Frequency Transformer of full-bridge synchronous rectification circuit prime
Suitable exchange input, by the ac voltage rectifier of input it is direct current output by full-bridge synchronous rectification circuit.Due to MOSFET mono-
As there is parasitic body diode, therefore in the case that MOSFET does not have drive signal, electric current still can pass through
MOSFET body diode forms loop, so output voltage is uncontrollable, and in the case where load current is big, due to body two
The through-current capability of pole pipe is limited, can damage body diode even MOSFET.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of adjustable High Power Factor bridge of output voltage
Formula circuit of synchronous rectification, can flexible modulation output voltage, realize synchronous rectification, and there is high power factor.
To achieve these goals, the present invention provides a kind of output voltage adjustable High Power Factor bridge synchronization rectification electricity
Road, including for being depressured transformer T, electric capacity C0, inductance L1, rectification circuit 1, drive control circuit and the filter circuit of isolation
2, the filtered circuit 2 of the output end of rectification circuit 1 with load be connected, rectification circuit 1 including power tube Q1, Q2, Q3, Q4, Q5,
Q6, the source electrode of the power tube Q1 are connected with power tube Q3 drain electrode, and power tube Q3 source electrode is connected with power tube Q5 source electrode,
The source electrode of the power tube Q2 is connected with power tube Q4 drain electrode, and power tube Q4 source electrode is connected with power tube Q6 source electrode, institute
The drain electrode for stating power tube Q1 is connected with power tube Q2 drain electrode, and the drain electrode of the power tube Q5 is connected with power tube Q6 drain electrode,
Power tube Q2 and Q6 drain electrode are respectively the output plus terminal and output negative terminal of rectification circuit 1；One end of transformer T primary side winding
The L lines of connection exchange input, the N lines of its other end connection exchange input, one end of vice-side winding is connected to power tube Q1 and Q3
Between node, its other end is connected to the node between power tube Q2 and Q4；The drive control circuit is used to gather transformation
Device T primary side and the voltage and current signal of the output end of filter circuit 2, power tube is controlled by mutually isolated drive signal
Q1, Q2, Q3, Q4, Q5, Q6 conducting and shut-off, make power tube Q1 consistent with power tube Q4 drive signal, power tube Q2 and work(
Rate pipe Q3 drive signal is consistent, and power tube Q1 and power tube Q3 drive signal is complementary, power tube Q2 and power tube Q4 drive
Dynamic signal is complementary, and power tube Q5 drive signal postpones in power tube Q2, Q3 drive signal, power tube Q6 drive signal
Postpone in power tube Q1, Q4 drive signal；The electric capacity C0 is connected between the L lines and N lines of exchange input, the inductance L1
One end be connected with power tube Q1 and Q2 drain electrode, its other end connect filter circuit 2 input.
Specifically, the filter circuit 2 is made up of inductance L2 and electric capacity C1, C2, inductance L2 one end connection inductance L1,
The connection load of its other end；Node between electric capacity C1 one end connection inductance L2 and L1, its other end connect Q5 and Q6 drain electrode,
Electric capacity C2 one end connects the node between inductance L2 and load, and its other end connects Q5 and Q6 drain electrode.
Specifically, described power tube Q1, Q2, Q3, Q4, Q5, Q6 are N-channel MOS FET.
From above technical scheme, the present invention provides a kind of bridge type synchronous of the adjustable High Power Factor of output voltage
Rectification circuit, Industrial Frequency Transformer is devised in exchange input side, the isolation and one-level pressure regulation of former secondary is realized, facilitates rear class
MOSFET type selecting；The diode in traditional bridge synchronization rectification circuit is substituted using MOSFET, and on each bridge arm
Add the MOSFET of an Opposite direction connection, the Delayed conducting that drive control circuit passes through the MOSFET of two Opposite direction connections of control
Time, realize the flexible modulation of output voltage；Rectification circuit can realize synchronous rectification, reduce interference；By in the defeated of AC
The PFC inductance L1 for entering electric capacity C0 and DC side realizes PFC.All power tubes are N-channel MOS FET, cost
It is cheap.The present invention has the advantages of circuit structure is simple, reliability is high, power factor is high, efficiency high, defeated especially suitable for exchanging
Enter, the application scenario of low-voltage, high-current output.
Brief description of the drawings
Fig. 1 is the circuit block diagram of the present invention.
Fig. 2 is the MOSFET of circuit of the present invention drive waveforms figure.
Fig. 3 is the circuit block diagram that the present invention is applied to three-phase input.
Embodiment
Circuit diagram of the invention as shown in Figure 1, a kind of adjustable High Power Factor bridge of output voltage provided by the invention
Formula circuit of synchronous rectification, including for being depressured the transformer T isolated, electric capacity C0, PFC inductance L1, rectification circuit 1, drive control
Circuit and filter circuit 2.The filtered circuit 2 of the output end of rectification circuit 1 with load be connected, rectification circuit 1 including power tube Q1,
Q2, Q3, Q4, Q5, Q6, all power tubes are the small N-channel MOS FET of conduction loss.Two backward powers pipe Q5, Q6, can be with
Current flow paths are blocked in the case of no drive signal, the parasitic body diode of power tube is avoided passing through and produces electric current time
Road.
Power tube Q1 source electrode is connected with power tube Q3 drain electrode, and power tube Q3 source electrode connects with Q5 source electrode；Power
Pipe Q2 source electrode is connected with power tube Q4 drain electrode, and power tube Q4 source electrode connects with Q6 source electrode；Power tube Q1 drain electrode and
Q2 drain electrode connection, power tube Q5 drain electrode connect with Q6 drain electrode, and power tube Q2 and Q6 drain electrode are respectively rectification circuit 1
Output plus terminal and output negative terminal；Industrial Frequency Transformer T isolates former secondary, and the power frequency ac voltage of input is reduced by the turn ratio
For the alternating voltage of proportional low-voltage, one-level pressure regulation is realized, is also convenient for the MOSFET of rear class type selecting；Industrial Frequency Transformer
The L lines of one end connection exchange input of T primary side windings, the N lines of its other end connection exchange input；One end connection of vice-side winding
Node between power tube Q1 and Q3, its other end are connected to the node between power tube Q2 and Q4；Electric capacity C0 is connected to friendship
Between the L lines and N lines that flow input, PFC inductance L1 one end connection power tube Q1 and Q2 drain electrode, its other end connection filter circuit
2 input, the input capacitance C0 of AC and the PFC inductance L1 of DC side are arranged at, the power factor of circuit can be improved.
Drive control circuit gathers input voltage and current signal from Industrial Frequency Transformer T primary side, from the defeated of filter circuit 2
Go out end collection output voltage and current signal, produce bridge synchronization rectification MOSFET and a pair of reverse MOSFET drive control letter
Number, driving control signal by after light-coupled isolation again by driving chip drive corresponding to MOSFET, the power supply of 6 groups of driving chips
Mutually isolated, corresponding 6 groups of driving control signal are mutually isolated.Wherein, power tube Q1 and power tube Q4 driving control signal
Unanimously, power tube Q2 is consistent with Q3 driving control signal, and power tube Q1 and Q3 driving control signal is complementary, power tube Q2 and
Q4 driving control signal is complementary, and middle interval time is dead time, power tube Q5 driving control signal postpone in
Power tube Q2 and Q3 driving control signal, power tube Q6 driving control signal postpone in power tube Q1 and Q4 drive control
Signal, by adjusting regulation of power tube Q5, power tube Q6 driving control signal the time delay realization to output voltage, such as scheme
Shown in 2.Drive control circuit is also added into inputting overvoltage/undervoltage, output overcurrent, short-circuit protection function, can be fast when breaking down
Speed response, close power supply output.Specifically, input voltage is gathered input overvoltage/undervoltage protection, and collection input current can
Judged with carrying out zero crossing and peak value, form feedback from the output end collection output voltage of filter circuit 2, control two reversely connects
The MOSFET connect the Delayed conducting time, output voltage is adjusted, output over-voltage protection function is realized, by being carried out to output current
Collection, it is possible to achieve output overcurrent and short-circuit protection function.
The π type filter circuits that filter circuit 2 is preferably made up of inductance L2 and electric capacity C1, C2, inductance L2 one end connection inductance
L1, the connection load of its other end；Node between electric capacity C1 one end connection inductance L2 and L1, its other end connect Q5 and Q6 leakage
Pole, the node between electric capacity C2 one end connection inductance L2 and load, its other end connect Q5 and Q6 drain electrode.π type filter circuits
The ripple of output voltage can be effectively reduced, the power supply of proof load is steady.
As shown in figure 3, the adjustable High Power Factor bridge synchronization rectification circuit of output voltage provided by the invention, can also
Expand the occasion for promoting the use of three-phase input.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (3)
- A kind of 1. adjustable High Power Factor bridge synchronization rectification circuit of output voltage, it is characterised in that：Including for be depressured every From transformer T, electric capacity C0, inductance L1, rectification circuit（1）, drive control circuit and filter circuit（2）, the rectified current Road（1）The filtered circuit of output end（2）It is connected with load, rectification circuit（1）Including power tube Q1, Q2, Q3, Q4, Q5, Q6, institute The source electrode for stating power tube Q1 is connected with power tube Q3 drain electrode, and power tube Q3 source electrode is connected with power tube Q5 source electrode, described Power tube Q2 source electrode is connected with power tube Q4 drain electrode, and power tube Q4 source electrode is connected with power tube Q6 source electrode, the work( Rate pipe Q1 drain electrode is connected with power tube Q2 drain electrode, and the drain electrode of the power tube Q5 is connected with power tube Q6 drain electrode, power Pipe Q2 and Q6 drain electrode are respectively rectification circuit（1）Output plus terminal and output negative terminal；One end of transformer T primary side winding connects Connect the L lines of exchange input, the N lines of its other end connection exchange input, one end of vice-side winding be connected to power tube Q1 and Q3 it Between node, its other end is connected to the node between power tube Q2 and Q4；The drive control circuit is used to gather transformer T Primary side and filter circuit（2）The voltage and current signal of output end, by mutually isolated drive signal control power tube Q1, Q2, Q3, Q4, Q5, Q6 conducting and shut-off, make power tube Q1 consistent with power tube Q4 drive signal, power tube Q2 and power Pipe Q3 drive signal is consistent, and power tube Q1 and power tube Q3 drive signal is complementary, power tube Q2 and power tube Q4 driving Signal is complementary, and power tube Q5 drive signal postpones to prolong in power tube Q2, Q3 drive signal, power tube Q6 drive signal It is later than power tube Q1, Q4 drive signal；The electric capacity C0 is connected between the L lines and N lines of exchange input, the inductance L1's One end is connected with power tube Q1 and Q2 drain electrode, its other end connection filter circuit（2）Input.
- 2. the adjustable High Power Factor bridge synchronization rectification circuit of a kind of output voltage according to claim 1, its feature It is：The filter circuit（2）It is made up of inductance L2 and electric capacity C1, C2, inductance L2 one end connection inductance L1, its other end connects Connect load；Node between electric capacity C1 one end connection inductance L2 and L1, its other end connect Q5 and Q6 drain electrode, electric capacity C2 one end The node between inductance L2 and load is connected, its other end connects Q5 and Q6 drain electrode.
- 3. the adjustable High Power Factor bridge synchronization rectification circuit of a kind of output voltage according to claim 1, its feature It is：Described power tube Q1, Q2, Q3, Q4, Q5, Q6 are N-channel MOS FET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649005.0A CN107395037B (en) | 2017-08-01 | 2017-08-01 | High-power factor bridge type synchronous rectification circuit with adjustable output voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649005.0A CN107395037B (en) | 2017-08-01 | 2017-08-01 | High-power factor bridge type synchronous rectification circuit with adjustable output voltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107395037A true CN107395037A (en) | 2017-11-24 |
| CN107395037B CN107395037B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710649005.0A Active CN107395037B (en) | 2017-08-01 | 2017-08-01 | High-power factor bridge type synchronous rectification circuit with adjustable output voltage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074719A (en) * | 2017-11-28 | 2018-05-25 | 合肥华耀电子工业有限公司 | A kind of 18 pulse transformers |
| CN111245260A (en) * | 2020-03-10 | 2020-06-05 | 广州金升阳科技有限公司 | Bridgeless PFC switching power supply circuit |
| GB2601750A (en) * | 2020-12-08 | 2022-06-15 | Dyson Technology Ltd | Buck-boost converter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074719A (en) * | 2017-11-28 | 2018-05-25 | 合肥华耀电子工业有限公司 | A kind of 18 pulse transformers |
| CN108074719B (en) * | 2017-11-28 | 2023-11-21 | 合肥华耀电子工业有限公司 | 18 pulse transformer |
| CN111245260A (en) * | 2020-03-10 | 2020-06-05 | 广州金升阳科技有限公司 | Bridgeless PFC switching power supply circuit |
| GB2601750A (en) * | 2020-12-08 | 2022-06-15 | Dyson Technology Ltd | Buck-boost converter |
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| Publication number | Publication date |
|---|---|
| CN107395037B (en) | 2023-09-08 |
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