CN109713901A - A kind of end Boost coupling inductance formula buck translation circuit and control method - Google Patents
A kind of end Boost coupling inductance formula buck translation circuit and control method Download PDFInfo
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- CN109713901A CN109713901A CN201910024141.XA CN201910024141A CN109713901A CN 109713901 A CN109713901 A CN 109713901A CN 201910024141 A CN201910024141 A CN 201910024141A CN 109713901 A CN109713901 A CN 109713901A
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Abstract
The invention discloses a kind of end Boost coupling inductance formula buck translation circuits, belong to the non-isolated converter technique of direct current, can be realized output voltage stabilization in wide input voltage range；It when input voltage is higher than output voltage, is controlled by the duty ratio to three power switch tubes, the present invention can realize buck functionality automatically, guarantee output voltage stabilization；When the input voltage is lower than the output voltage, it is controlled by the duty ratio to three power switch tubes, the present invention can realize boost function automatically, guarantee output voltage stabilization；The present invention can be realized two, the end Boost power switch tube zero current turning-on/zero voltage turn-off and two, the end Boost freewheeling diode zero-current switching, eliminates the end Boost diode reverse recovery problem, improves the efficiency of translation circuit；Two electric currents do not need sharing control in the present invention, even if two, the end Boost power switch tube duty ratio is slightly different, still are able to realize that two inductance flow in coupling；The present invention is suitable for the occasions such as the new energy system of wide input.
Description
Technical field
The present invention relates to the non-isolated converting means of direct current in a kind of electrical energy changer, more specifically, it relates to one
The converter of kind direct current stepping functions.
Background technique
Fuel cell-powered, photovoltaic power generation, wind-power electricity generation, new-energy automobile etc. are greatly developed.However, at these
Occasion have the characteristics that one it is common: with the variation of external natural conditions and use environment, output voltage fluctuation range is larger.
Accordingly, it would be desirable to be able to the stable buck-boost type power inverter of output voltage is realized in wide input voltage variation range, thus
High quality electric energy can be provided to rear class electrical equipment.
In buck-boost type power inverter, isolated form flyback converter and non-isolation type Buck-Boost common are
Converter, Cuk, Zeta, SEPIC converter and two-tube One Buck-Boost converter body etc. are several.Buck-Boost,Cuk,Zeta
Voltage stress with switching tube and diode in SEPIC converter is the sum of input, output voltage；And two-tube Buck-
The switching tube of Boost and the voltage stress of diode are respectively equal to input voltage and output voltage, than Buck-Boost,
The device voltage stress of Cuk, Zeta and SEPIC converter is low.It is opened again due to two-tube One Buck-Boost converter body there are two power
Guan Guan, control freedom degree is big, and control strategy is more, so two-tube One Buck-Boost converter body research and application are very extensive.But
Under existing topological structure and control strategy, two-tube One Buck-Boost converter body power switch tube is usually operated at hard switching shape
State is unfavorable for further increasing efficiency and reduces EMI.
It is an object of the invention to solve switching tube and diode in the Boost circuit in two-tube One Buck-Boost converter body
Hard switching problem, invent a kind of end Boost coupling inductance formula buck translation circuit and control method.The converter is suitable for
The occasions such as the new energies system such as electric car, fuel cell, direct-current micro-grid, photovoltaic power generation and wind-power electricity generation.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of end Boost coupling inductance formula lifting
Translation circuit is pressed, the present invention provides the following technical scheme that
A kind of end Boost coupling inductance formula buck translation circuit, including input direct-current voltage source, reduction voltage circuit, coupling
Inductance, booster circuit and output end filter capacitor, the input direct-current voltage source include input direct-current voltage source Uin, and input is straight
The anode of galvanic electricity potential source Uin is connected with the drain electrode of the first power switch tube S 1, the cathode and first of input direct-current voltage source Uin
The anode of sustained diode 1 is connected；The reduction voltage circuit includes the first power switch tube S 1, the first sustained diode 1, the
The source electrode of one power switch tube S 1 is connected with the cathode of the first sustained diode 1, and the two joint is respectively and in coupling inductance
The Same Name of Ends of inductance L1, L2 are connected, the source electrode and third of the anode of the first sustained diode 1 and the second power switch tube S 2
The source electrode junction of power switch tube S 3 is connected；The coupling inductance includes inductance L1, inductance L2, inductance L1 in coupling inductance
The other end connect the drain electrode of the second power switch tube S 2, the other end of inductance L2 connects third power switch tube in coupling inductance
The drain electrode of S3；The booster circuit include the second power switch tube S 2, the second sustained diode 2, third power switch tube S 3,
Third sustained diode 3, the anode of drain electrode the second sustained diode 2 of connection of the second power switch tube S 2, third power are opened
Close the anode of the drain electrode connection third sustained diode 3 of pipe S3, the cathode and third freewheeling diode of the second sustained diode 2
The cathode of D3 is connected, and the two joint is connected with the anode of output filter capacitor C；The output end filter capacitor includes defeated
Filter capacitor C out, the source of the source electrode and third power switch tube S 3 of the cathode of output filter capacitor C and the second power switch tube S 2
Pole junction is connected.
It further, further include voltage ring controller, current loop controller and PWM generator.
Further, output end filter capacitor C-terminal output voltage Uout is that control object is controlled, its step are as follows institute
It states:
S1: output filter capacitor C-terminal output voltage Uout reference signal Uoutref and output filter capacitor C-terminal is exported
The difference of voltage Uout obtains control signal Ue1 through the voltage regulator in voltage ring controller；
S2: the control signal Ue1 reference value as the coupling inductance electric current in the current regulator in current loop controller
It is obtained with the difference of the sum of electric current iL1, iL2 of inductance L1, L2 in coupling inductance through the current regulator in current loop controller
Control signal Ue2；
S3: the PWM generator 1 in signal Ue2 feeding PWM generator will be controlled, generates the second power with carrier signal Tr1
Switching tube S2 driving signal Ugs2；
S4: the PWM generator 2 in signal Ue2 feeding PWM generator will be controlled, carrier signal Tr2 is (with Tr1 phase difference
180 degree) generate 3 driving signal Ugs3 of third power switch tube S；
Second power switch tube S, 2 driving signal Ugs2 and 3 driving signal of third power switch tube S in S5:PWM generator
Ugs3 passes through or arithmetic unit, generates 1 driving signal Ugs1 of the first power switch tube S.
In conclusion the invention has the following advantages: a kind of end Boost coupling inductance formula buck translation circuit and
Control method not only realizes switch tube zero in two crisscross parallel Boost circuits at the end Boost due to using coupling inductance
Voltage/Zero Current Switch, diode zero-current switching, and two inductance flow in coupling inductance.A kind of end Boost coupling electricity
Sense formula buck translation circuit and control method can be used common pwm chip (such as UC3525 etc.), control program letter
List is easily achieved.
Detailed description of the invention
Fig. 1 is a kind of end Boost coupling inductance formula buck translation circuit figure of the present invention；
Fig. 2 is a kind of end Boost coupling inductance formula buck translation circuit control method schematic diagram of the present invention；
Fig. 3 is a kind of end Boost coupling inductance formula buck translation circuit of the present invention and each switch mode of control method
Equivalent waveform diagram；
Fig. 4 is a kind of end Boost coupling inductance formula buck translation circuit of the present invention and each switch mode of control method
Equivalent circuit diagram；
Fig. 4 (a) is a kind of end Boost coupling inductance formula buck translation circuit of the present invention and control method operation mode 1
Schematic diagram；
Fig. 4 (b) is a kind of end Boost coupling inductance formula buck translation circuit of the present invention and control method operation mode 2
Schematic diagram；
Fig. 4 (c) is a kind of end Boost coupling inductance formula buck translation circuit of the present invention and control method operation mode 3
Schematic diagram；
Fig. 4 (d) is a kind of end Boost coupling inductance formula buck translation circuit of the present invention and control method operation mode 4
Schematic diagram；
Fig. 4 (e) is a kind of end Boost coupling inductance formula buck translation circuit of the present invention and control method operation mode 5
Schematic diagram；
Fig. 4 (f) is a kind of end Boost coupling inductance formula buck translation circuit of the present invention and control method operation mode 6
Schematic diagram；
Fig. 5 is a kind of end Boost coupling inductance formula buck translation circuit of the present invention and control method input direct-current voltage
Source voltage Uin is in 20V to input direct-current voltage source voltage Uin when changing between 80V and output voltage Uout simulation waveform；
A kind of end Boost coupling inductance formula buck translation circuit of Fig. 6 present invention and control method input direct-current voltage source
Driving signal (Ugs1, Ugs2 and Ugs3), inductive current (iL1 and iL2), the second sustained diode 2 when voltage Uin is equal to 20V
3 electric current iD3 waveform expanded view of electric current iD2 and third sustained diode；
A kind of end Boost coupling inductance formula buck translation circuit of Fig. 7 present invention and control method input direct-current voltage source
Driving signal (Ugs1, Ugs2 and Ugs3), inductive current (iL1 and iL2), the second sustained diode 2 when voltage Uin is equal to 80V
3 electric current iD3 waveform expanded view of electric current iD2 and third sustained diode；
A kind of end Boost coupling inductance formula buck translation circuit of Fig. 8 present invention and control method input direct-current voltage source
Input direct-current source voltage Uin and output voltage Uout simulation waveform when voltage Uin is equal to 42V；
A kind of end Boost coupling inductance formula buck translation circuit of Fig. 9 present invention and control method input direct-current voltage source
Voltage Uin is equal to 42V constantly driving signal (Ugs1, Ugs2 and Ugs3), inductive current (iL1 and iL2), the second freewheeling diode
3 electric current iD3 waveform expanded view of D2 electric current iD2 and third sustained diode.
In figure: 1, input direct-current voltage source；2, reduction voltage circuit；3, coupling inductance；4, booster circuit；5 output end filtered electricals
Hold；6, voltage ring controller；61, voltage regulator；7, current loop controller；71, current regulator；8, PWM generator；81,
PWM generator one；82, PWM generator two；83 or arithmetic unit.
Specific embodiment
The explanation of all kinds of voltages, signal: Uin input direct-current voltage source voltage；Uout output voltage；The control of ue1 Voltage loop
Device output signal；Ue2 current loop controller output signal；Tr1 sawtooth carrier wave signal 1；Tr2 sawtooth carrier wave signal 2 is (with Tr1 phase
Potential difference 180 degree)；1 driving signal of the first power switch tube S of Ugs1；2 driving signal of the second power switch tube S of Ugs2；Ugs3 third
3 driving signal of power switch tube S；The electric current of inductance L1 in iL1 coupling inductance；The electric current of inductance L2 in iL2 coupling inductance；LM is
It is inductance L2 in coupling inductance that mutual inductance, L1-LM in coupling inductance, which are the equivalent leakage inductance of inductance L1 in coupling inductance, L2-LM,
Equivalent leakage inductance；2 electric current of the second sustained diode of iD2；3 electric current of iD3 third sustained diode.
Embodiment:
Below in conjunction with attached drawing 1-7, invention is further described in detail.
Embodiment 1
Referring to Fig.1-2, a kind of end Boost coupling inductance formula buck translation circuit and control method, it includes that input is straight
Galvanic electricity potential source 1, reduction voltage circuit 2, coupling inductance 3, booster circuit 4, output end filter capacitor 5, voltage ring controller 6, electric current loop
Controller 7 and PWM generator 8, it is characterised in that: input direct-current voltage source 1 includes input direct-current voltage source Uin, input direct-current
The anode of voltage source Uin is connected with the drain electrode of the first power switch tube S 1, and the cathode of input direct-current voltage source Uin and first continues
The anode of stream diode D1 is connected；Reduction voltage circuit 2 includes the first power switch tube S 1, the first sustained diode 1, the first function
The source electrode of rate switching tube S1 is connected with the cathode of the first sustained diode 1, the two joint respectively with inductance in coupling inductance
The Same Name of Ends of L1, L2 are connected, the source electrode and third power of the anode of the first sustained diode 1 and the second power switch tube S 2
The source electrode junction of switching tube S3 is connected；Coupling inductance 3 includes inductance L1, inductance L2, and inductance L1's is another in coupling inductance
End connects the drain electrode of the second power switch tube S 2, the leakage of the other end connection third power switch tube S 3 of inductance L2 in coupling inductance
Pole；Booster circuit 4 includes the second power switch tube S 2, the second sustained diode 2, third power switch tube S 3, third afterflow two
Pole pipe D3, the anode of drain electrode the second sustained diode 2 of connection of the second power switch tube S 2, the leakage of third power switch tube S 3
Pole connects the anode of third sustained diode 3, the cathode and the cathode phase of third sustained diode 3 of the second sustained diode 2
Connection, the two joint is connected with the anode of output filter capacitor C；Output end filter capacitor 5 includes output filter capacitor C,
The cathode of output filter capacitor C is connected with the source electrode junction of the source electrode of the second power switch tube S 2 and third power switch tube S 3
It connects；Voltage ring controller 6 includes voltage regulator 61, the reference signal Uoutref of output filter capacitor C-terminal output voltage Uout
Control letter is obtained through the voltage regulator 61 in voltage ring controller 6 with the difference of output filter capacitor C-terminal output voltage Uout
Number Ue1；Current loop controller 7 includes current regulator 71, controls signal Ue1 as the current regulation in current loop controller 7
The difference of the sum of electric current iL1, iL2 of inductance L1, L2 are through electricity in the reference value and coupling inductance of coupling inductance electric current in device 71
Current regulator 71 in stream ring controller 7 obtains control signal Ue2；PWM generator 8 includes PWM generator 1, PWM hair
Raw device 2 82, carrier signal Tr1, carrier signal Tr2 or arithmetic unit, control signal Ue2 are sent into the PWM hair in PWM generator 8
Raw device 1 generates 2 driving signal Ugs2 of the second power switch tube S with carrier signal Tr1, and control signal Ue2 is sent into PWM
PWM generator 2 82 in device 8 generates third power switch tube S 3 with carrier signal Tr2 (with Tr1 phase difference 180 degree) and drives
Signal Ugs3,2 driving signal Ugs2 of the second power switch tube S and 3 driving signal of third power switch tube S in PWM generator 8
Ugs3 passes through or arithmetic unit, generates 1 driving signal Ugs1 of the first power switch tube S.
Embodiment 2
Referring to Fig. 3-4, a kind of end Boost coupling inductance formula buck translation circuit described in embodiment 1 and control method
Working principle, be summarized as follows:
1. operation mode (1) (t1-t2 period)
As shown in Fig. 3 and Fig. 4 (a).In t1Moment opens the first power switch tube S 1 and the second power switch tube S 2, defeated
Out under voltage Uout effect, electric current (being equal to electric current in inductance L1) iL1 is linear in the leakage inductance L1-LM of inductance L1 in coupling inductance
Rise, electric current (being equal to electric current in inductance L2) iL2 linear decline in the leakage inductance L2-LM of inductance L2 in coupling inductance, until t2
Moment electric current iL2 is equal to zero, completes two inductive current changes of current.Due to the effect of the leakage inductance L1-LM of inductance L1 in coupling inductance,
Second power switch tube S, 2 zero current turning-on；In t2Moment, since electric current iL2 is in inductance L2 leakage inductance L2-LM in coupling inductance
Zero, so 3 zero-current switching of third sustained diode, no Reverse recovery.Output energy is provided by output filter capacitor C.
2. operation mode (2) (t2-t3 period)
As shown in Fig. 3 and Fig. 4 (b).Since electric current iL2 is zero in inductance L2 leakage inductance L2-LM in coupling inductance, so direct current
Under voltage source voltage Uin effect, electric current iL1 linear rise in the leakage inductance L1-LM of inductance L1 in coupling inductance, until arriving t3Moment
Until first power switch tube S 1 and the second power switch tube S 2 turn off.
3. operation mode (3) (t3-t4 period)
As shown in Fig. 3 and Fig. 4 (c).From t3Moment starts in the case where output voltage Uout is acted on inductance L1 in coupling inductance
Electric current iL1 linear decline in leakage inductance L1-LM, until t4Until moment.
4. operation mode (4) (t4-t5 period)
As shown in Fig. 3 and Fig. 4 (d).In t4Moment opens the first power switch tube S 1 and third power switch tube S 3, defeated
Out under voltage Uout effect, electric current iL1 linear decline in the leakage inductance L1-LM of inductance L1 in coupling inductance, inductance in coupling inductance
Electric current iL2 linear rise in the leakage inductance L2-LM of L2, until arriving t5Electric current in the leakage inductance L1-LM of inductance L1 in moment coupling inductance
IL1 is equal to zero, completes two inductive current changes of current.Due to the effect of the leakage inductance L2-LM of inductance L2 in coupling inductance, third power
Switching tube S3 zero current turning-on；In t5Moment, since electric current iL1 is zero in the leakage inductance L1-LM of inductance L1 in coupling inductance, so
Second sustained diode, 2 zero-current switching, no Reverse recovery.
5. operation mode (5) (t5-t6 period)
As shown in Fig. 3 and Fig. 4 (e).Since electric current iL1 is zero in the leakage inductance L1-LM of inductance L1 in coupling inductance, so defeated
Enter under DC voltage source voltage Uin effect, electric current iL2 linear rise in the leakage inductance L2-LM of inductance L2 in coupling inductance, until arriving
t6The first power switch tube S of moment1It is turned off with third power switch tube S 3.
6. operation mode (6) (t6-t7 period)
As shown in Fig. 3 and Fig. 4 (f), from t6Moment starts in the case where output voltage Uout is acted on inductance L2 in coupling inductance
Electric current iL2 linear decline in leakage inductance L2-LM, until t7Moment opens the first power switch tube S 1 and the second power switch tube S 2 is
Only.From t7Moment initially enters next cycle.
Embodiment 3
Referring to Fig. 5-9.With embodiment 1, a kind of end Boost coupling inductance formula buck translation circuit as described in example 2
And the main emulation experiment that control method is done.
By taking 42V Vehicular direct-current converter as an example, if input direct-current voltage source voltage Uin is in 20V -80V, output voltage
Uout is controlled in 42V.Simulation parameter is as follows: the second power switch tube S 2 and 3 switching frequency of third power switch tube S are
50kHz, the first power switch tube S 1 are 100kHz, and inductance L1, inductance L2 inductance are respectively 40 μ H, coupled systemes in coupling inductance
Number is 0.9, and output filter capacitor C is 560 μ F, and output voltage Uout control is 3 Ω resistive loads in 42V, load R.
Fig. 5 give when input direct-current voltage source voltage Uin changes between 20V -80V input direct-current source voltage Uin and
Output voltage Uout simulation waveform.As it can be seen that output voltage Uout can stablize in input direct-current source voltage Uin variation
42V.In input direct-current source voltage Uin variation, output voltage Uout has overshoot, this mainly has the control system response time to cause
's.Overshoot can be reduced by the optimization of control parameter and feed forward control techniques.
Fig. 6 is given in coupling inductance of the input direct-current source voltage Uin equal to 20V when electric current in inductance L1 leakage inductance L1-LM
Electric current iL2,1 driving signal Ugs1 of the first power switch tube S, the second power in inductance L2 leakage inductance L2-LM in iL1, coupling inductance
3 driving signal Ugs3 of switching tube S2 driving signal Ugs2 and third power switch tube S, 2 electric current iD2 of the second sustained diode and
3 electric current iD3 of third sustained diode.
Fig. 7 is given in coupling inductance of the input direct-current source voltage Uin equal to 80V when electric current in inductance L1 leakage inductance L1-LM
Electric current iL2,1 driving signal Ugs1 of the first power switch tube S, the second power in inductance L2 leakage inductance L2-LM in iL1, coupling inductance
3 driving signal Ugs3 of switching tube S2 driving signal Ugs2 and third power switch tube S, 2 electric current iD2 of the second sustained diode and
3 electric current iD3 of third sustained diode.
Input direct-current source voltage Uin and output voltage when Fig. 8 gives input direct-current voltage source voltage Uin equal to 42V
Uout simulation waveform.As it can be seen that output voltage Uout can also stablize in 42V when input direct-current source voltage Uin is equal to 42V.
Fig. 9 is given in coupling inductance of the input direct-current source voltage Uin equal to 42V when electric current in inductance L1 leakage inductance L1-LM
Electric current iL2,1 driving signal Ugs1 of the first power switch tube S, the second power in inductance L2 leakage inductance L2-LM in iL1, coupling inductance
Switching tube S2 driving signal Ugs2,3 driving signal Ugs3 of third power switch tube S, 2 electric current iD2 of the second sustained diode and
Three sustained diodes, 3 electric current iD3.
From Fig. 6, Fig. 7, Fig. 9 it can be seen that due to inductance L2 in the electric current iL1 of inductance L1 in coupling inductance, coupling inductance
Electric current iL2 is interrupted in leakage inductance L2-LM, so the second power switch tube S 2 and third power switch tube S 3 realize zero current and open
Logical, the second sustained diode 2 and third sustained diode 3 also achieve zero-current switching, and even if the second power switch
Pipe S2 and 3 driving signal of third power switch tube S have slight difference, will not influence in coupling inductance inductance L1 electric current iL1 and
The stream of inductance L2 electric current iL2 in coupling inductance.First power switch tube S 1, the second power switch tube S 2 and third power switch
Pipe S3 uses MOSFET power tube, and due to the effect of junction capacity, they can be realized zero voltage turn-off.
Simulation result shows: a kind of end Boost coupling inductance formula buck translation circuit of the present invention and control method are in width
When input voltage, output voltage stabilization can either be realized well, also can be realized the end Boost power switch tube no-voltage pass
Disconnected/zero current turning-on and freewheeling diode zero-current switching, to improve efficiency.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (3)
1. a kind of end Boost coupling inductance formula buck translation circuit, including input direct-current voltage source (1), reduction voltage circuit (2),
Coupling inductance (3), booster circuit (4) and output end filter capacitor (5), it is characterised in that: input direct-current voltage source (1) packet
Input direct-current voltage source Uin is included, the anode of input direct-current voltage source Uin is connected with the drain electrode of the first power switch tube S 1, defeated
The cathode for entering DC voltage source Uin is connected with the anode of the first sustained diode 1；
The reduction voltage circuit (2) includes the first power switch tube S 1, the first sustained diode 1, the source of the first power switch tube S 1
Pole is connected with the cathode of the first sustained diode 1, the two joint Same Name of Ends with inductance L1, L2 in coupling inductance respectively
It is connected, the source electrode of the source electrode and third power switch tube S 3 of the anode of the first sustained diode 1 and the second power switch tube S 2
Junction is connected；
The coupling inductance (3) includes inductance L1, inductance L2, and the other end of inductance L1 connects the second power switch in coupling inductance
The drain electrode of pipe S2, the drain electrode of the other end connection third power switch tube S 3 of inductance L2 in coupling inductance；
The booster circuit (4) includes the second power switch tube S 2, the second sustained diode 2, third power switch tube S 3, the
Three sustained diodes 3, the anode of drain electrode the second sustained diode 2 of connection of the second power switch tube S 2, third power switch
The anode of the drain electrode connection third sustained diode 3 of pipe S3, the cathode and third sustained diode 3 of the second sustained diode 2
Cathode be connected, the two joint is connected with the anode of output filter capacitor C；
The output end filter capacitor (5) includes output filter capacitor C, the cathode of output filter capacitor C and the second power switch
The source electrode of pipe S2 is connected with the source electrode junction of third power switch tube S 3.
2. a kind of end Boost coupling inductance formula buck translation circuit according to claim 1, it is characterised in that: also wrap
Include voltage ring controller (6), current loop controller (7) and PWM generator (8).
3. a kind of control method of the end Boost coupling inductance formula buck translation circuit, it is characterised in that: output end filter capacitor
C-terminal output voltage Uout is that control object is controlled, and it is described that its step are as follows:
S1: output filter capacitor C-terminal output voltage Uout reference signal Uoutref and output filter capacitor C-terminal output voltage
The difference of Uout obtains control signal Ue1 through the voltage regulator (61) in voltage ring controller (6)；
S2: the control signal Ue1 reference as the coupling inductance electric current in the current regulator (71) in current loop controller (7)
The difference of the sum of electric current iL1, iL2 of inductance L1, L2 are through the current regulator in current loop controller (7) in value and coupling inductance
(71) control signal Ue2 is obtained；
S3: will control the PWM generator one (81) in signal Ue2 feeding PWM generator (8), generate second with carrier signal Tr1
2 driving signal Ugs2 of power switch tube S；
S4: the PWM generator two (82) in signal Ue2 feeding PWM generator (8) will be controlled, with carrier signal Tr2 (with Tr1 phase
Potential difference 180 degree) generate 3 driving signal Ugs3 of third power switch tube S；
Second power switch tube S, 2 driving signal Ugs2 and 3 driving signal of third power switch tube S in S5:PWM generator (8)
Ugs3 passes through or arithmetic unit (83), generates 1 driving signal Ugs1 of the first power switch tube S.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110912407A (en) * | 2019-11-19 | 2020-03-24 | 中国船舶重工集团公司第七一九研究所 | Novel wide-range high-frequency direct current conversion device |
| CN110912406A (en) * | 2019-11-19 | 2020-03-24 | 中国船舶重工集团公司第七一九研究所 | Control method of wide-range high-frequency direct current conversion device |
| CN112994451A (en) * | 2021-03-04 | 2021-06-18 | 西安微电子技术研究所 | Pre-stabilized voltage output circuit capable of realizing boosting, maintaining and reducing voltage and control method |
| CN113489338A (en) * | 2021-07-28 | 2021-10-08 | 重庆星座汽车科技有限公司 | Double-forward TC buck-boost circuit |
| CN113839557A (en) * | 2021-08-24 | 2021-12-24 | 深圳航天科技创新研究院 | Wide voltage range boost conversion topology |
| CN116073652A (en) * | 2023-02-15 | 2023-05-05 | 青岛鼎信通讯科技有限公司 | Magnetic integrated inductance BOOST circuit applied to photovoltaic controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110912407A (en) * | 2019-11-19 | 2020-03-24 | 中国船舶重工集团公司第七一九研究所 | Novel wide-range high-frequency direct current conversion device |
| CN110912406A (en) * | 2019-11-19 | 2020-03-24 | 中国船舶重工集团公司第七一九研究所 | Control method of wide-range high-frequency direct current conversion device |
| CN110912407B (en) * | 2019-11-19 | 2022-11-04 | 中国船舶重工集团公司第七一九研究所 | Wide-range high-frequency direct current conversion device |
| CN110912406B (en) * | 2019-11-19 | 2023-01-17 | 中国船舶重工集团公司第七一九研究所 | Control method of wide-range high-frequency direct current conversion device |
| CN112994451A (en) * | 2021-03-04 | 2021-06-18 | 西安微电子技术研究所 | Pre-stabilized voltage output circuit capable of realizing boosting, maintaining and reducing voltage and control method |
| CN113489338A (en) * | 2021-07-28 | 2021-10-08 | 重庆星座汽车科技有限公司 | Double-forward TC buck-boost circuit |
| CN113839557A (en) * | 2021-08-24 | 2021-12-24 | 深圳航天科技创新研究院 | Wide voltage range boost conversion topology |
| CN113839557B (en) * | 2021-08-24 | 2024-04-09 | 深圳航天科技创新研究院 | Boost conversion topology with wide voltage range |
| CN116073652A (en) * | 2023-02-15 | 2023-05-05 | 青岛鼎信通讯科技有限公司 | Magnetic integrated inductance BOOST circuit applied to photovoltaic controller |
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