CN205901619U - NULL takes power factor correction's full -bridge monopole converter - Google Patents
NULL takes power factor correction's full -bridge monopole converter Download PDFInfo
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- CN205901619U CN205901619U CN201620713136.1U CN201620713136U CN205901619U CN 205901619 U CN205901619 U CN 205901619U CN 201620713136 U CN201620713136 U CN 201620713136U CN 205901619 U CN205901619 U CN 205901619U
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- 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
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Abstract
The utility model discloses a NULL takes power factor correction's full -bridge monopole converter, including the transformer, primary circuit and secondary circuit, primary circuit includes power factor inductance, current sampling resistance, positive clamp device, burden clamp device, forward full -bridge, negative sense full -bridge, former limit inductance and former limit electric capacity, accept to exchange direct input, through exchange just, the switching control of burden half cycle, can solve the problem of ordinary monopole converter input for the inefficiency of diode, during the transform of the boost of full -bridge, the mode that adopts the double bridge arm to switch on simultaneously than the ordinary monopole full -bridge half -bridge arm mode of switching on, switches on the loss to make an appointment with half thely during the boost transform, two -way configuration clamp capacitor is guaranteed when the circuit breaks down, and the high -pressure peak that is not produced by the converter punctures, the adoption moves the looks full -bridge and warp the control model, adds the distribution of the just easy complete control pulse of a little device on general integrated circuit.
Description
Technical field
The utility model is related to a kind of supply convertor, more particularly to a kind of exchange input tape PFC complete
Bridge unipolar converter.
Background technology
General supply convertor, using common diode rectification, the power factor school then boosted by boost
Just, then by full-bridge converting and rectification, thus AC power is transformed into direct current or exchange, there is control complexity, device is many,
The low problem of efficiency.
Utility model content
The purpose of this utility model is the deficiency for existing power supply converter, provides a kind of exchange input tape power factor
The full-bridge unipolar converter of correction, has control simply, efficiency high few using device, and the scope of application is wider.
For reaching described purpose, the technical solution adopted in the utility model is as follows:
Provide a kind of full-bridge unipolar converter of exchange input tape PFC, including transformer, primary circuit
With secondary circuit it is characterised in that described primary circuit includes power factor inductance, current sampling resistor, positive clamp device, bears
Clamp device, positive full-bridge, negative sense full-bridge, former limit inductance and former limit electric capacity；Described current sampling resistor rcs is connected to n end；Described
Power factor inductance comprises to input inductance lin, and input inductance lin is connected to l end；
Positive clamp device includes clamp capacitor c+ and clamping switch tube scc+, and clamp capacitor c+ mono- terminates current sampling resistor
Rcs, the drain electrode of another termination clamping switch tube scc+, clamping switch tube scc+ source electrode meets input inductance lin；
Negative clamp device includes clamp capacitor c- and clamping switch tube scc-, and clamp capacitor c- mono- terminates power factor inductance
Lin, another termination negative pole clamping switch tube scc- drain electrode, negative pole clamping switch tube scc- source electrode meets current sampling resistor rcs；
Positive full-bridge comprises switching tube sa+, switching tube sb+, switching tube sc+ and switching tube sd+, switching tube sb+ and switch
Pipe sd+ common source, and it is connected to current sampling resistor rcs together with scc- source electrode；Negative sense full-bridge comprises switching tube sa-, switching tube
Sb-, switching tube sc- and switching tube sd-, switching tube sb- and switching tube sd- common source, and it is connected to power together with scc+ source electrode
Factor inductance lin；
Positive full-bridge, one end of negative sense full-bridge two midpoint one termination transformer t former limit, another termination former limit electric capacity cb, former
Side electric capacity cb other end series connection former limit inductance lr is followed by the other end of transformer t former limit；
When exchange input l end is timing, the switching tube sa- of negative sense full-bridge, switching tube sb-, switching tube sc- and switching tube
Turn between the whole main plot of sd-, clamping switch tube scc- turns off, the switching tube sa+ of positive full-bridge, switching tube sb+, switching tube sc+
Press phase-shifting full-bridge conducting principle with switching tube sd+, clamping switch tube scc+ turns on；When doing boost conducting, the switch of positive full-bridge
Pipe simultaneously turns on, and clamping switch tube scc+ turns off, and when boost turns off, the switching tube of positive full-bridge continues to press phase-shifting full-bridge conducting
Principle, clamping switch tube scc+ turns on.
When exchange input n end is timing, the switching tube sa+ of positive full-bridge, switching tube sb+, switching tube sc+ and switching tube sd
+ all turn between main plots, clamping switch tube scc+ turns off, the switching tube sa- of negative sense full-bridge, switching tube sb-, switching tube sc- and
Switching tube sd- presses phase-shifting full-bridge conducting principle, and clamping switch tube scc- turns on；When doing boost conducting, the switching tube of negative sense full-bridge
Simultaneously turn on, clamping switch tube scc- turns off, when boost turns off, the switching tube of negative sense full-bridge continue press phase-shifting full-bridge turn on former
Then, clamping switch tube scc- conducting.
In an embodiment of technique scheme, described power factor inductance also comprises to input inductance nin, input
Inductance nin mono- end is connected to n end, another termination current sampling resistor rcs.
In an embodiment of technique scheme, input inductance lin is substituted as power factor electricity using common mode inductance
Sense, common mode inductance is connected between exchange input l end and n end.
In an embodiment of technique scheme, described secondary circuit includes outputting inductance, commutation diode and filter
Ripple electric capacity；One termination commutation diode d+ positive pole of transformer t secondary, another termination commutation diode d- positive pole, in transformer
Heart tap connects filter capacitor cf one end, makees output negative pole；Commutation diode d+ negative pole and commutation diode d- negative pole after connecing, connect
In outputting inductance lf, the other end of outputting inductance lf another termination filter capacitor cf, make output cathode.
In an embodiment of technique scheme, described secondary circuit is including outputting inductance, synchronous rectifier
And filter capacitor；Synchronous rectifier sy+ drain electrode is connected to transformer secondary one end, source electrode and synchronous rectifier sy- source electrode and filtering
Electric capacity one end simultaneously connects and makees output negative pole, and synchronous rectifier sy- drain electrode is connected to the transformer secondary other end, and transformer center tap connects
Filter inductance lf, outputting inductance lf another termination filter capacitor other end, does output cathode.
In an embodiment of technique scheme, after described current sampling resistor is connected to power factor inductance, also
N end can be connected to, before clamping switch tube scc-.
In an embodiment of technique scheme, described clamp capacitor c+ is parallel with discharge resistance r+, described clamper
Electric capacity c- is parallel with discharge resistance r-.
The technical solution of the utility model has the beneficial effects that:
Using double clamp capacitor patterns it is ensured that input l, n end is just or in the case of negative voltage, by fault,
When accessory power supply fault, inductance just turn on or switching tube all off and when causing peak voltage, can be filled by positive clamper respectively
Put, negative clamp device absorbs；Positive and negative voltage turn-on when pressing input respectively using positive full-bridge, negative sense full-bridge, when doing
When boost and full-bridge, another full-bridge has the synchronous rectification of input, reduces input pressure drop, improves input efficiency, when
When converter turns on for boost, all pipes of full-bridge turn on together, the ratio mode of common full-bridge single armed pipe pipe conducting, fall
Low 1/2nd conduction loss is hence it is evident that improve the efficiency of full-bridge conversion section.
Brief description
Fig. 1 is the circuit theory diagrams of the converter of the utility model embodiment one.
Fig. 2 is each switching tube drive waveforms figure one of the converter of the utility model embodiment one.
Fig. 3 is each switching tube drive waveforms figure two of the converter of the utility model embodiment one.
Fig. 4 is the circuit theory diagrams of the converter of the utility model embodiment two.
Fig. 5 is each switching tube drive waveforms figure one of the converter of the utility model embodiment two.
Fig. 6 is each switching tube drive waveforms figure two of the converter of the utility model embodiment two.
Specific embodiment
Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), except non-specifically is chatted
State, all can be replaced by other alternative features equivalent or that there is similar purpose.I.e., unless specifically stated otherwise, each feature
It is a series of equivalent or one of similar characteristics example.New to this practicality with specific embodiment explanation below in conjunction with accompanying drawing
The technical scheme of type further illustrates.
Embodiment one
As shown in figure 1, embodiment one provides a kind of full-bridge unipolar converter of exchange input tape PFC,
Using single inductance input and commutation diode, including transformer t, primary circuit and secondary circuit, primary circuit include power because
Number inductance, current sampling resistor rcs, positive clamp device, negative clamp device, positive full-bridge, negative sense full-bridge, former limit inductance lr and former
Side electric capacity cb；
Current sampling resistor rcs is connected to n end；Power factor inductance is input inductance lin, and input inductance lin is connected to exchange
Input l end；
Positive clamp device includes clamp capacitor c+ and clamping switch tube scc+, and clamp capacitor c+ mono- terminates current sampling resistor
Rcs, the drain electrode of another termination clamping switch tube scc+, clamping switch tube scc+ source electrode meets input inductance lin；Negative clamp device
Including clamp capacitor c- and clamping switch tube scc-, clamp capacitor c- mono- terminates power factor inductance lin, another termination negative pole pincers
Bit switch pipe scc- drains, and negative pole clamping switch tube scc- source electrode meets current sampling resistor rcs；
Positive full-bridge comprises switching tube sa+, switching tube sb+, switching tube sc+ and switching tube sd+, switching tube sb+ and switch
Pipe sd+ common source, and it is connected to current sampling resistor rcs together with scc- source electrode；Negative sense full-bridge comprises switching tube sa-, switching tube
Sb-, switching tube sc- and switching tube sd-, switching tube sb- and switching tube sd- common source, and it is connected to power together with scc+ source electrode
Factor inductance lin；
Positive full-bridge, one end of negative sense full-bridge two midpoint one termination transformer t former limit, another termination former limit electric capacity cb, former
Side electric capacity cb other end series connection former limit inductance lr is followed by the other end of transformer t former limit；
Secondary circuit includes outputting inductance lf, commutation diode d+, commutation diode d- and filter capacitor cf；Transformer t
One termination commutation diode d+ positive pole of secondary, another termination commutation diode d- positive pole, transformer center tap connects filtered electrical
Hold cf one end, make output negative pole；Commutation diode d+ negative pole and commutation diode d- negative pole after connecing, are connected to outputting inductance lf,
The other end of outputting inductance lf another termination filter capacitor cf, makees output cathode.
As shown in Figure 2,3, when l end inputs as exchanging positive half cycle: full-bridge switch pipe sa-, sb-, sc-, sd- are whole for negative sense
Conducting, negative pole clamping switch tube scc- turns off.Phase-shifting full-bridge pulsed drive a+, is with reference to phase-shifting full-bridge pulse c with reference to phase shift
The common turning part of full-bridge pulse d (with relation) is further added by with reference to phase-shifting full-bridge pulse a turning part (or relation)；Phase-shifting full-bridge
Pulsed drive b+, is with reference to phase-shifting full-bridge pulse c and to be further added by joining with reference to the common turning part of phase-shifting full-bridge pulse d (with relation)
Examine phase-shifting full-bridge pulse b turning part (or relation)；Phase-shifting full-bridge pulsed drive c+, is with reference to phase-shifting full-bridge pulse a and reference
The common turning part of phase-shifting full-bridge pulse b (with relation) is further added by with reference to phase-shifting full-bridge pulse c turning part (or relation)；Phase shift
Full-bridge pulsed drive d+, is increase with reference to phase-shifting full-bridge pulse a and with reference to the common turning part of phase-shifting full-bridge pulse b (with relation) again
Plus with reference to phase-shifting full-bridge pulse d turning part (or relation)；When driving b+, driving c+ conducting, electric current is come in from l end, is passed through
Lin, sd-, sc+, then pass through transformer t former limit, lr, cb, flow through sa-, sb+, again pass through rcs, return to n end；When driving b+, drive
Dynamic c+ conducting, transformer secondary commutation diode d+ turns on, and flows to filter capacitor cf and load by filter inductance lf, by filtering
Electric capacity cf and the load other end return to transformer center.When driving a+, driving d+ conducting, electric current comes in from l end, by lin,
Sb-, sa+, then pass through cb, lr, transformer t former limit, flow through sc-, sd+, again pass through rcs, return to n end；As driving a+, drive d+
Conducting, transformer secondary commutation diode d- turns on, and flows to filter capacitor cf and load by filter inductance lf, by filter capacitor
Cf and the load other end return to transformer center.During making boost conducting, that is, phase-shifting full-bridge pulse a, phase-shifting full-bridge pulse b are common
Same turning part (with relation) and phase-shifting full-bridge pulse c, the common turning part of phase-shifting full-bridge pulse d (with relation), electric current is from l end
Come in, by lin, sb-, sa+, sa-, sb+ and sd-, sc+, sc-, sd+ two branch circuit parallel connection, again pass through rcs, return to n end.Just
Pole clamping switch tube scc+, during boost turns on, turns off, and stops electric capacity from being switched on and off tube short circuit, when boost conducting terminates, just
Pole clamping switch tube scc+ turns on, and releases energy to converter；When dead band and circuit drives are abnormal, the energy on inductance passes through
Positive pole clamping switch tube scc+ body diode, is absorbed by positive pole clamp capacitor c+.
When l end inputs as exchange negative half period: positive full-bridge switch pipe sa+, sb+, sc+, sd+ all turn on, and negative pole clamps
Bit switch pipe scc+ turns off.Phase-shifting full-bridge pulsed drive a-, is jointly lead with reference to phase-shifting full-bridge pulse c and with reference to full-bridge pulse d
Logical part (with relation) is further added by with reference to phase-shifting full-bridge pulse a turning part (or relation)；Phase-shifting full-bridge pulsed drive b-, for ginseng
Examine phase-shifting full-bridge pulse c and be further added by leading with reference to phase-shifting full-bridge pulse b with reference to the common turning part of phase full-bridge pulse d (with relation)
Logical part (or relation)；Phase-shifting full-bridge pulsed drive c-, is common with reference to phase-shifting full-bridge pulse a and reference phase-shifting full-bridge pulse b
Turning part (with relation) is further added by with reference to phase-shifting full-bridge pulse c turning part (or relation)；Phase-shifting full-bridge pulsed drive d-, be
It is further added by with reference to phase-shifting full-bridge arteries and veins with reference to phase-shifting full-bridge pulse a with reference to the common turning part of phase-shifting full-bridge pulse b (with relation)
Rush d turning part (or relation)；When driving b-, driving c- conducting, electric current is come in from n end, by rcs, sd+, sc-, then passes through
Transformer t former limit, lr, cb, flow through sa+, sb-, again pass through lin, return to l end；As driving b-, drive c- conducting, transformer pair
Side commutation diode d+ turns on, and flows to filter capacitor cf and load by filter inductance lf, another by filter capacitor cf and load
End returns to transformer center.When drive a-, drive d- conducting, electric current is come in from n end, by rcs, sb+, sa-, then by cb,
Lr, transformer t former limit, flow through sc+, sd-, again pass through lin, return to l end；When driving a-, driving d- conducting, transformer secondary is whole
Stream diode d- conducting, flows to filter capacitor cf and load by filter inductance lf, is returned by filter capacitor cf and the load other end
To transformer center.Negative pole clamping switch tube scc-, during making boost conducting, that is, with reference to phase-shifting full-bridge pulse a, reference phase shift
The common turning part of full-bridge pulse b (with relation) and reference phase-shifting full-bridge pulse c, the reference common conducting portion of phase-shifting full-bridge pulse d
Divide (with relation), turn off, stop electric capacity from being switched on and off tube short circuit, when boost conducting terminates, negative pole clamping switch tube scc- turns on,
Release energy to converter；When dead band and circuit drives are abnormal, the energy on inductance passes through negative pole clamping switch tube scc- body
Diode, is absorbed by negative pole clamp capacitor c+.
Embodiment two
As shown in figure 4, embodiment two provides a kind of full-bridge unipolar converter of exchange input tape PFC,
Using the input synchronous rectification output of double inductance.
Compared with embodiment, difference is, power factor inductance includes two independent input inductance lin and input
Inductance nin, is connected to input l end and n end respectively；Clamp capacitor c+ is parallel with discharge resistance r+, clamp capacitor c- is parallel with electric discharge
Resistance r-；Using synchronous rectification mode, commutation diode d+ and whole is substituted using synchronous rectifier sy+ and synchronous rectifier sy-
Stream diode d-, synchronous rectifier sy+ drain electrode is connected to transformer t secondary one end, source electrode and synchronous rectifier sy- source electrode and output
Filter capacitor one end simultaneously connects and makees output negative pole, and synchronous rectifier sy- drain electrode is connected to the transformer secondary other end, and transformer center is taken out
Head meets output inductor lf, output inductor lf another termination output filter capacitor other end, does output cathode.
As shown in Figure 5,6, when l end inputs as exchanging positive half cycle: full-bridge switch pipe sa-, sb-, sc-, sd- are whole for negative sense
Conducting, negative pole clamping switch tube scc- turns off.Phase-shifting full-bridge pulsed drive a+, is with reference to phase-shifting full-bridge pulse c with reference to phase shift
The common turning part of full-bridge pulse d (with relation) is further added by with reference to phase-shifting full-bridge pulse a turning part (or relation)；Phase-shifting full-bridge
Pulsed drive b+, is with reference to phase-shifting full-bridge pulse c and to be further added by joining with reference to the common turning part of phase-shifting full-bridge pulse d (with relation)
Examine phase-shifting full-bridge pulse b turning part (or relation)；Phase-shifting full-bridge pulsed drive c+, is with reference to phase-shifting full-bridge pulse a and reference
The common turning part of phase-shifting full-bridge pulse b (with relation) is further added by with reference to phase-shifting full-bridge pulse c turning part (or relation)；Phase shift
Full-bridge pulsed drive d+, is increase with reference to phase-shifting full-bridge pulse a and with reference to the common turning part of phase-shifting full-bridge pulse b (with relation) again
Plus with reference to phase-shifting full-bridge pulse d turning part (or relation)；When driving b+, driving c+ conducting, electric current is come in from l end, is passed through
Lin, sd-, sc+, then pass through transformer t former limit, lr, cb, flow through sa-, sb+, again pass through rcs, nin, return to n end；
When driving b+, driving c+ conducting, transformer secondary synchronous rectification switch pipe sy+ turns on, and secondary is centrally through filtering
Inductance lf flows to filter capacitor cf and load, by filter capacitor cf and the load other end through sy+, returns to transformer one end.When
Drive a+, drive d+ conducting, power supply is come in from l end, by lin, sb-, sa+, then pass through cb, lr, transformer t former limit, flow through
Sc-, sd+, again pass through rcs, nin, return to n end；As driving a+, drive d+ conducting, transformer secondary synchronous rectification switch pipe sy-
Conducting, secondary flows to filter capacitor cf and load centrally through filter inductance lf, is passed through by filter capacitor cf and the load other end
Sy-, returns to transformer one end.During making boost conducting, power supply is come in from l end, by lin, sb-, sa+, sa-, sb+ and
Sd-, sc+, sc-, sd+ two branch circuit parallel connection, again passes through rcs, nin, returns to n end.Positive pole clamping switch tube scc+, leads in boost
During logical, i.e. phase-shifting full-bridge pulse a, the common turning part of phase-shifting full-bridge pulse b (with relation) and phase-shifting full-bridge pulse c, phase shift
The common turning part of full-bridge pulse d (with relation), turns off, and stops electric capacity from being switched on and off tube short circuit, when boost conducting terminates, positive pole
Clamping switch tube scc+ turns on, and releases energy to converter；When dead band and circuit drives are abnormal, the energy on inductance just passes through
Pole clamping switch tube scc+ body diode, is absorbed by positive pole clamp capacitor c+.
When l end inputs as exchange negative half period: positive full-bridge switch pipe sa+, sb+, sc+, sd+ all turn on, and positive pole clamps
Bit switch pipe scc+ turns off.Phase-shifting full-bridge pulsed drive a-, is jointly lead with reference to phase-shifting full-bridge pulse c and with reference to full-bridge pulse d
Logical part (with relation) is further added by with reference to phase-shifting full-bridge pulse a turning part (or relation)；Phase-shifting full-bridge pulsed drive b-, for ginseng
Examine phase-shifting full-bridge pulse c and be further added by leading with reference to phase-shifting full-bridge pulse b with reference to the common turning part of phase full-bridge pulse d (with relation)
Logical part (or relation)；Phase-shifting full-bridge pulsed drive c-, is common with reference to phase-shifting full-bridge pulse a and reference phase-shifting full-bridge pulse b
Turning part (with relation) is further added by with reference to phase-shifting full-bridge pulse c turning part (or relation)；Phase-shifting full-bridge pulsed drive d-, be
It is further added by with reference to phase-shifting full-bridge arteries and veins with reference to phase-shifting full-bridge pulse a with reference to the common turning part of phase-shifting full-bridge pulse b (with relation)
Rush d turning part (or relation)；When driving b-, driving c- conducting, power supply is come in from n end, by nin, rcs, sd+, sc-, then
By transformer t former limit, lr, cb, flow through sa+, sb-, again pass through lin, return to power supply l end；
When driving b-, driving c- conducting, transformer secondary synchronous rectification switch pipe sy+ turns on, and secondary is centrally through filtering
Inductance lf flows to filter capacitor cf and load, by filter capacitor cf and the load other end through sy+, returns to transformer one end.When
Drive a-, drive d- conducting, power supply is come in from n end, by nin, rcs, sb+, sa-, then pass through cb, lr, transformer t former limit,
Flow through sc+, sd-, again pass through lin, return to power supply l end；As driving a-, drive d- conducting, transformer secondary synchronous rectification switch
Pipe sy- turns on, and secondary flows to filter capacitor cf and load centrally through filter inductance lf, by filter capacitor cf and the load other end
Through sy-, return to the transformer other end.Negative pole clamping switch tube scc-, during boost turns on, that is, with reference to phase-shifting full-bridge arteries and veins
Rush a, the reference common turning part of phase-shifting full-bridge pulse b (with relation) and reference phase-shifting full-bridge pulse c, reference phase-shifting full-bridge pulse
The common turning part of d (with relation), turns off, and stops electric capacity from being switched on and off tube short circuit, when boost conducting terminates, negative pole clamp switch
Pipe scc- turns on, and releases energy to converter；When dead band and circuit drives are abnormal, the energy on inductance passes through negative pole clamper
Switching tube scc- body diode, is absorbed by negative pole clamp capacitor c+.
The utility model is not limited to described embodiment, such as the analog switched power supply with digital control function, with number
Digital switch power supply of word control function etc., every using analog structure of the present utility model and its similar change, all should list in
Protection domain of the present utility model.
Claims (7)
1. a kind of full-bridge unipolar converter of exchange input tape PFC, including transformer, primary circuit and secondary are electric
Road is it is characterised in that described primary circuit includes power factor inductance, current sampling resistor, positive clamp device, negative clamper dress
Put, positive full-bridge, negative sense full-bridge, former limit inductance and former limit electric capacity；Described current sampling resistor rcs is connected to n end；Described power because
Number inductance comprises to input inductance lin, and input inductance lin is connected to l end；
Positive clamp device includes clamp capacitor c+ and clamping switch tube scc+, and clamp capacitor c+ mono- terminates current sampling resistor rcs,
The drain electrode of another termination clamping switch tube scc+, clamping switch tube scc+ source electrode meets input inductance lin；
Negative clamp device includes clamp capacitor c- and clamping switch tube scc-, and clamp capacitor c- mono- terminates power factor inductance lin,
Another termination negative pole clamping switch tube scc- drain electrode, negative pole clamping switch tube scc- source electrode meets current sampling resistor rcs；
Positive full-bridge comprises switching tube sa+, switching tube sb+, switching tube sc+ and switching tube sd+, switching tube sb+ and switching tube sd+
Common source, and it is connected to current sampling resistor rcs together with scc- source electrode；Negative sense full-bridge comprises switching tube sa-, switching tube sb-, opens
Close pipe sc- and switching tube sd-, switching tube sb- and switching tube sd- common source, and be connected to power factor electricity together with scc+ source electrode
Sense lin；
Positive full-bridge, negative sense full-bridge two midpoint one terminate one end of transformer t former limit, another termination former limit electric capacity cb, former limit electricity
Hold cb other end series connection former limit inductance lr to be followed by the other end of transformer t former limit.
2. the full-bridge unipolar converter of a kind of exchange input tape PFC according to claim 1, its feature exists
In described power factor inductance also comprises to input inductance nin, and input inductance nin mono- end is connected to n end, another termination current sampling
Resistance rcs.
3. the full-bridge unipolar converter of a kind of exchange input tape PFC according to claim 1, its feature exists
In, using common mode inductance substitute input inductance lin as power factor inductance, common mode inductance be connected to exchange input l end and n end it
Between.
4. the full-bridge unipolar converter of a kind of exchange input tape PFC according to claim 1, its feature exists
In after described current sampling resistor is connected to power factor inductance, n end can also be connected to, before clamping switch tube scc-.
5. the full-bridge unipolar converter of a kind of exchange input tape PFC according to claim 1, its feature exists
In described clamp capacitor c+ is parallel with discharge resistance r+, and described clamp capacitor c- is parallel with discharge resistance r-.
6. the full-bridge unipolar converter of a kind of exchange input tape PFC according to claim 1, its feature exists
In described secondary circuit includes outputting inductance, commutation diode and filter capacitor；
One termination commutation diode d+ positive pole of transformer t secondary, another termination commutation diode d- positive pole, transformer center is taken out
Head connects filter capacitor cf one end, makees output negative pole；Commutation diode d+ negative pole and commutation diode d- negative pole after connecing, are connected to defeated
Go out inductance lf, the other end of outputting inductance lf another termination filter capacitor cf, make output cathode.
7. the full-bridge unipolar converter of a kind of exchange input tape PFC according to claim 1, its feature exists
In described secondary circuit is including outputting inductance, synchronous rectifier and filter capacitor；
Synchronous rectifier sy+ drain electrode is connected to transformer secondary one end, source electrode and synchronous rectifier sy- source electrode and filter capacitor one end
And connect and make output negative pole, synchronous rectifier sy- drain electrode is connected to the transformer secondary other end, and transformer center tap connects filter inductance
Lf, outputting inductance lf another termination filter capacitor other end, does output cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620713136.1U CN205901619U (en) | 2016-07-06 | 2016-07-06 | NULL takes power factor correction's full -bridge monopole converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620713136.1U CN205901619U (en) | 2016-07-06 | 2016-07-06 | NULL takes power factor correction's full -bridge monopole converter |
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Cited By (6)
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| CN105939125A (en) * | 2016-07-06 | 2016-09-14 | 内江市凌辉电子科技有限公司 | Alternating current input full-bridge monopole converter with power factor correction function |
| CN107395037A (en) * | 2017-08-01 | 2017-11-24 | 合肥华耀电子工业有限公司 | A kind of adjustable High Power Factor bridge synchronization rectification circuit of output voltage |
| CN107482920A (en) * | 2017-06-27 | 2017-12-15 | 中国科学院电工研究所 | A kind of control method based on Boost full-bridge isolated converters |
| CN110268617A (en) * | 2017-02-10 | 2019-09-20 | 西门子股份公司 | DC/DC converter with full-bridge control |
| US10971998B2 (en) * | 2018-04-04 | 2021-04-06 | Hyundai Motor Company | Charging apparatus for electric vehicle |
| CN113346725A (en) * | 2020-02-18 | 2021-09-03 | 维谛技术有限公司 | Peak voltage absorption circuit |
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2016
- 2016-07-06 CN CN201620713136.1U patent/CN205901619U/en not_active Expired - Fee Related
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| CN105939125A (en) * | 2016-07-06 | 2016-09-14 | 内江市凌辉电子科技有限公司 | Alternating current input full-bridge monopole converter with power factor correction function |
| CN105939125B (en) * | 2016-07-06 | 2019-09-17 | 内江市凌辉电子科技有限公司 | A kind of full-bridge unipolar converter exchanging input tape PFC |
| CN110268617A (en) * | 2017-02-10 | 2019-09-20 | 西门子股份公司 | DC/DC converter with full-bridge control |
| CN107482920A (en) * | 2017-06-27 | 2017-12-15 | 中国科学院电工研究所 | A kind of control method based on Boost full-bridge isolated converters |
| CN107482920B (en) * | 2017-06-27 | 2020-05-15 | 中国科学院电工研究所 | Control method based on Boost full-bridge isolated converter |
| CN107395037A (en) * | 2017-08-01 | 2017-11-24 | 合肥华耀电子工业有限公司 | A kind of adjustable High Power Factor bridge synchronization rectification circuit of output voltage |
| CN107395037B (en) * | 2017-08-01 | 2023-09-08 | 合肥华耀电子工业有限公司 | High-power factor bridge type synchronous rectification circuit with adjustable output voltage |
| US10971998B2 (en) * | 2018-04-04 | 2021-04-06 | Hyundai Motor Company | Charging apparatus for electric vehicle |
| CN113346725A (en) * | 2020-02-18 | 2021-09-03 | 维谛技术有限公司 | Peak voltage absorption circuit |
| CN113346725B (en) * | 2020-02-18 | 2023-09-01 | 维谛新能源有限公司 | Peak voltage absorbing circuit |
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