CN105958827A - DC/DC converter topology circuit for high voltage switching power supply - Google Patents
DC/DC converter topology circuit for high voltage switching power supply Download PDFInfo
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- CN105958827A CN105958827A CN201610270417.9A CN201610270417A CN105958827A CN 105958827 A CN105958827 A CN 105958827A CN 201610270417 A CN201610270417 A CN 201610270417A CN 105958827 A CN105958827 A CN 105958827A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33592—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a DC/DC converter topology circuit for high voltage switching power supply. The circuit comprises two forward-conversion circuits with an identical circuit structure; and the primary sides of the two forward conversion circuits are connected in parallel while the secondary sides are connected in parallel. With such a design, both the current outputting capacity and the outputted power are doubled, and at the same time, as the primary sides of the forward conversion circuits share the same switch tube, the circuit becomes suitable for high-voltage inputting. With a smaller number of devices, the circuit of the invention has a simple topology structure and can be manufactured at a low cost. Consuming less, the circuit achieves higher efficiency. Free of circuit magnetic polarization and straight-through problems, the devices are not easy to damage, making the circuit especially suitable for high voltage applications.
Description
Technical field
The present invention relates to a kind of DC/DC transformation topology circuit, particularly relate to a kind of high-voltage switch power supply
DC/DC transformation topology circuit.
Background technology
In switch power technology, normally used DC/DC translation circuit has following several: flyback, just
Swash, half-bridge, full-bridge, recommend, derive the most again the conversion electricity of multiple switching power supply
Road, such as double tube positive exciting translation circuit etc..Owing to the voltage stress of bridge conversion circuit breaker in middle pipe is only input
The half of voltage, the most current high-voltage switch power supply many employings bridge conversion circuit.Bridge conversion circuit has
There is transformator bi-directional excitation, easily reach powerful advantage, but bridge conversion circuit needs soft opening simultaneously
Dynamic, and there is straight-through problem, reliability is low.
Forward conversion circuit is also common isolated variable circuit, and it is simple that it has circuit, and it is excellent that reliability is high etc.
Point, but forward conversion circuit transformer individual event is excitatory, and utilization rate is low, so being only applicable to the electricity of middle low power
Source.Subsequent occurrences of double tube positive exciting translation circuit reduces the voltage stress of each switching tube, for the high electricity of development
Pressure input forward converter creates condition, but owing to forward conversion circuit needs multiple magnetic, so dutycycle
It is limited in less than 0.5.Occur in that again by multiple two-transistor forward converters in parallel or series for this problem
The combination double tube positive exciting translation circuit of composition, makes the equivalent dutycycle of changer can be higher than 0.5, but these becomes
The combination changing circuit makes the quantity of switching tube be multiplied, and improves the loss of power, increases control difficulty.
Summary of the invention
The problem existed for prior art, the present invention proposes the DC/DC conversion of a kind of high-voltage switch power supply
Topological circuit, is characterized in that former limit shares a switching tube.The present invention is by arranging two-way forward conversion electricity
Road so that it is former limit secondary is the most in parallel, shares a switching tube to reduce switching tube quantity, fall on former limit simultaneously
Low electric energy loss, and the voltage stress of each switching tube is the half of input voltage, is therefore applicable to high electricity
Pressure input.
The technical solution adopted for the present invention to solve the technical problems is:
The present invention includes the forward conversion circuit that two-way circuit structure is identical, the former limit of two-way forward conversion circuit
Being in parallel, the secondary of two-way forward conversion circuit is in parallel so that output current capacity and output improve
One times, the former limit of two-way forward conversion circuit shares a switching tube simultaneously, it is adaptable to high input voltage.
The present invention specifically include input capacitance C1, the 3rd switching tube M3, first via forward conversion circuit,
Second road forward conversion circuit, sustained diode 6, output inductor L1, output filter capacitor C2 and
3rd magnetic reset diode D3, input capacitance C1 is connected between the two ends of civil power, first via forward conversion
Circuit, the one end on former limit of the second road forward conversion circuit are connected to one end of civil power, first via forward conversion
Circuit, the other end on former limit of the second road forward conversion circuit are all connected to city through the 3rd magnetic reset diode D3
One end of electricity, first via forward conversion circuit, the second road forward conversion circuit the other end on former limit all through the
Three switching tube M3 are connected to the other end of civil power, the 3rd switching tube M3 as described shared switching tube,
One road forward conversion circuit, the secondary of the second road forward conversion circuit are in parallel, and through sustained diode 6,
Export after the filtering charging circuit that output inductor L1 and output filter capacitor C2 is formed.
Described first via forward conversion circuit include the first switching tube M1, the first magnetic reset diode D1,
First commutation diode D4 and the first transformator T1, the Same Name of Ends on the first former limit of transformator T1 and non-same polarity
The positive pole of input capacitance C1 it is connected to respectively through the first switching tube M1 and described 3rd magnetic reset diode D3,
The Same Name of Ends on the first former limit of transformator T1 and non-same polarity are respectively through the first magnetic reset diode D1 and described
Three switching tube M3 are connected to the negative pole of input capacitance C1, and the first transformator T1 secondary Same Name of Ends is whole through second
Stream diode D5 is connected between sustained diode 6 and output inductor L1, and the first transformator T1 is secondary
Limit non-same polarity is connected between sustained diode 6 and output filter capacitor C2.
The second described road forward conversion circuit include second switch pipe M2, the second magnetic reset diode D2,
Second commutation diode D5 and the second transformator T2, the Same Name of Ends on the second former limit of transformator T2 and non-same polarity
The positive pole of input capacitance C1 it is connected to respectively through second switch pipe M2 and described 3rd magnetic reset diode D3,
The Same Name of Ends on the second former limit of transformator T2 and non-same polarity are respectively through the second magnetic reset diode D2 and described
Three switching tube M3 are connected to the negative pole of input capacitance C1, and the second transformator T2 secondary Same Name of Ends is whole through second
Stream diode D5 is connected between sustained diode 6 and output inductor L1, and the second transformator T2 is secondary
Limit non-same polarity is connected between sustained diode 6 and output filter capacitor C2.
Described output filter capacitor C2 two ends output direct current power source voltage.
The invention has the beneficial effects as follows:
(1) two-way normal shock shares one of them switching tube, use device count reduces, topological structure is succinct,
Low cost；
(2) major part transformer excitation energy feedback power input, be lost little, efficiency is high；
(3) switch tube voltage stress is only the half of input voltage, is more suitable for high input voltage occasion；
(4) there is not circuit magnetic biasing and straight-through problem, reliability is high, and components and parts are hardly damaged；
(5) two-way normal shock output-parallel, output current capacity is twice than single forward converter, the most defeated
Go out power also to increase and be twice.
Accompanying drawing explanation
Fig. 1 is the main circuit topological structure of the present invention.
Fig. 2 is each switching tube driving voltage sequential chart in embodiment.
Fig. 3 is the reference configuration figure that the present invention is applied to high-voltage switch power supply.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
As shown in Figure 1, described DC/DC translation circuit is electric by the forward conversion that two-way former limit secondary is all in parallel
Road forms, and shares one of them switching tube on former limit.Translation circuit is by input capacitance C1, the first switching tube
M1, second switch pipe M2, the 3rd switching tube M3, the first magnetic reset diode D1, the second magnetic reset two
Pole pipe D2, the 3rd magnetic reset diode D3, the first commutation diode D4, the second commutation diode D5, continuous
Stream diode D6, the first transformator T1, the second transformator T2, output inductor L1, output filtered electrical
Hold C2 to constitute.Wherein the first transformator T1 is by the first primary side winding Np1 and the first vice-side winding Ns1 structure
Becoming, the second transformator T2 is made up of the second primary side winding Np2 and the second vice-side winding Ns2.
Wherein, the positive pole of input capacitance C1 is respectively connected to drain electrode and the 3rd magnetic reset two of the first switching tube M1
The negative electrode of pole pipe D3, the source class of the first switching tube M1 be respectively connected to the first primary side winding Np1 Same Name of Ends and
The negative electrode of the first magnetic reset diode D1, the non-same polarity of the first primary side winding Np1 is respectively connected to the 3rd magnetic
The anode of reset diode D3 and the drain electrode of the 3rd switching tube M3, the source class of the 3rd switching tube is respectively connected to
The anode of one magnetic reset diode D1 and the negative pole of input capacitance C1.So constitute first via forward conversion
The primary circuit of circuit.
The positive pole of input capacitance C1 is respectively connected to drain electrode and the 3rd magnetic reset diode of second switch pipe M2
The negative electrode of D3, the source class of second switch pipe M2 is respectively connected to the Same Name of Ends and second of the second primary side winding Np2
The negative electrode of magnetic reset diode D2, the non-same polarity of the second primary side winding Np2 is respectively connected to the 3rd magnetic reset
The anode of diode D3 and the drain electrode of the 3rd switching tube M3, the source class of the 3rd switching tube is respectively connected to the second magnetic
The anode of reset diode D2 and the negative pole of input capacitance C1.So constitute the second road forward conversion circuit
Primary circuit, and be in parallel with the primary circuit of first via forward conversion circuit, and share the 3rd switching tube
M3。
The Same Name of Ends of the first vice-side winding Ns1 is connected in the anode of the first commutation diode D4, the first rectification two pole
The negative electrode of pipe D4 is connected in the negative electrode of the second commutation diode D5, the negative electrode of sustained diode 6 and output filter
One end of ripple inductance L1, the other end of output inductor L1 is connected in the positive pole of output filter capacitor C2, the
The non-same polarity of one vice-side winding Ns1 be connected in the anode of sustained diode 6, output filter capacitor C2 negative
Pole and the non-same polarity of the second vice-side winding Ns2, the Same Name of Ends of the second vice-side winding Ns2 is connected in the second rectification
The anode of diode D5, so constitutes the secondary circuit of the two-way forward conversion circuit of parallel connection.
Fig. 2 show the driving voltage schematic diagram of three switching tubes M1, M2, M3, and M1, M2 are staggered to be led
Logical, M1, M2 individually turn on period M3 and are both turned on, and M1, M2 simultaneously turn off period M3 and turn off.Often
In individual switch periods Ts, M1, M2 respectively turn on once, and M3 turns on twice, in two-way forward conversion circuit
Two transformator T1 and the second transformator T2 alternately transmit energy to secondary.
Below in conjunction with Fig. 2 to DC/DC translation circuit in switch periods Ts ([t0, the t4] period) time
Operation principle illustrate:
[t0, the t1] period: t0 moment, switching tube M1, M3 conducting, M2 is held off；First transformator
T1 termination of the same name input capacitance C1 positive pole, non-same polarity connects input capacitance C1 negative pole, T1 primary side winding Np1
Exciting curent flow to non-same polarity from Same Name of Ends, the Same Name of Ends voltage of vice-side winding Ns1 is higher than non-of the same name
End, the first commutation diode D4 conducting, input voltage transmits energy by T1 to secondary, is converted into inductance
Electromagnetic energy on L1, and charge to electric capacity C2.
The termination input capacitance C1 negative pole of the same name of the second transformator T2 primary side winding Np2, non-same polarity connects defeated
Entering electric capacity C1 positive pole, the second transformator T2 carries out magnetic reset: the exciting curent warp of the second transformator T2
The afterflow of C1-D2-Np2-D3-C1 loop, in T2 primary side winding Np2, exciting curent is flowed to non-by Same Name of Ends
Same Name of Ends, the excitatory energy of the second transformator T2 is to the feedback of input capacitance C1.
Simultaneously as the termination input capacitance C1 negative pole of the same name of the second transformator T2 primary side winding Np2, non-
Termination input capacitance C1 positive pole of the same name, therefore the Same Name of Ends voltage of the second transformator T2 vice-side winding Ns2 is low
In non-same polarity, the second commutation diode D5 cut-off, the electric current of output inductor L1 is through fly-wheel diode
D6 afterflow, the electromagnetic energy that L1 stores is that electric energy charges to output capacitance C2.
Whole [t0, the t1] period, input voltage Ui transmits energy by the first transformator T1 to secondary, and to
Electric capacity C2 charges；There is provided magnetic reset voltage for the second transformator T2 simultaneously, absorb its excitatory energy, it is achieved
The magnetic reset of transformator T2.
[t1, the t2] period: t1 moment, switching tube M1, M3 shutoff, M2 is held off, for Dead Time；
Now the first transformator T1 carries out magnetic reset: the exciting curent warp of the first transformator T1
The afterflow of C1-D1-Np1-D3-C1 loop, in T1 primary side winding Np1, exciting curent is flowed to non-by Same Name of Ends
Same Name of Ends, the excitatory energy of the first transformator T1 is to the feedback of input capacitance C1.
Meanwhile, secondary the first commutation diode D4 and the second commutation diode D5 cut-off, sustained diode 6
Conducting, the electric current of output inductor L1 continues on through sustained diode 6 afterflow, and the electromagnetic energy that L1 stores turns
Turn to electric energy charge to output capacitance C2.
[t2, the t3] period: t2 moment, switching tube M2, M3 conducting, M1 is held off, the second transformator T2
Termination input capacitance C1 positive pole of the same name, the non-input capacitance C1 negative pole that connects of the same name, swashing of T2 primary side winding Np2
Magnetoelectricity stream flows to non-same polarity from Same Name of Ends, and the Same Name of Ends voltage of vice-side winding Ns2 is higher than non-same polarity, the
Two commutation diode D5 conductings, input voltage transmits energy by T2 to secondary, is converted on inductance L1
Electromagnetic energy, and give electric capacity C2 charge.
The termination input capacitance C1 negative pole of the same name of the first transformator T1 primary side winding Np1, non-same polarity connects defeated
Entering electric capacity C1 positive pole, transformator T1 proceeds magnetic reset: the exciting curent warp of the first transformator T1
The afterflow of C1-D1-Np1-D3-C1 loop, in T1 primary side winding Np1, exciting curent is flowed to non-by Same Name of Ends
Same Name of Ends, the excitatory energy of transformator T1 is to the feedback of input capacitance C1.
Simultaneously as the Same Name of Ends voltage of the first transformator T1 primary side winding Np1 is less than non-same polarity, therefore
The voltage of the first transformator T1 vice-side winding Ns1 is that Same Name of Ends is just bearing non-same polarity, the first commutation diode
D4 ends, and the electric current of output inductor L1 turns through sustained diode 6 afterflow, the electromagnetic energy that L1 stores
Turn to electric energy charge to output capacitance C2.
Whole [t2, the t3] period, input voltage Ui transmits energy by the first transformator T2 to secondary, and to
Electric capacity C2 charges；There is provided magnetic reset voltage for the first transformator T1 simultaneously, absorb its excitatory energy, it is achieved
The magnetic reset of the first transformator T1.
[t3, the t4] period: t3 moment, switching tube M2, M3 shutoff, M1 is held off, for Dead Time；
Now the second transformator T2 carries out magnetic reset: the exciting curent warp of the second transformator T2
The afterflow of C1-D2-Np2-D3-C1 loop, in T2 primary side winding Np2, exciting curent is flowed to non-by Same Name of Ends
Same Name of Ends, the excitatory energy of the second transformator T2 is to the feedback of input capacitance C1.
Meanwhile, secondary the first commutation diode D4 and the second commutation diode D5 cut-off, sustained diode 6
Conducting, the electric current of output inductor L1 continues on through sustained diode 6 afterflow, and the electromagnetic energy that L1 stores turns
Turn to electric energy charge to output capacitance C2.
From the t4 moment, this DC/DC translation circuit starts the work of next cycle.
Just because of this topological structure so that this DC/DC translation circuit breaker in middle tube voltage stress is less,
It is applicable to high input voltage occasion；Use device count is few, topological structure succinct, low cost；Major part transformation
Device excitatory energy feedback power input, be lost little, efficiency is high；No matter switching tube M1, M2, M3 are open-minded
Or shutoff, primary side winding Np1 of the first transformator T1 and primary side winding Np2 of the second transformator T2
Exciting curent clock flows to non-same polarity from Same Name of Ends, the first transformator T1 and the magnetic core of the second transformator T2
It is unidirectional magnetiztion, it is to avoid double flux effects；Circuit symmetry is good, there is not circuit magnetic biasing and leads directly to
Problem, reliability is high, and components and parts are hardly damaged；Two-way normal shock output-parallel, output current capacity ratio is single
Individual forward converter is twice, and corresponding output also increases and is twice.
Referring to the drawings 3, can apply the present invention to high-voltage switch power supply, circuit construction of electric power mainly includes
Bridge rectifier filter circuit, the DC/DC translation circuit of the present invention, voltage doubling rectifing circuit, feedback control circuit
And load.Wherein.By feedback control circuit, circuit output is carried out sampling to compare, change switching tube
The dutycycle of M1, M2, M3 realizes the purpose of voltage stabilizing output.It addition, by changing dutycycle, it is also possible to
Obtain the voltage output of one group of relative broad range.
Claims (5)
1. a DC/DC transformation topology circuit for high-voltage switch power supply, is characterized in that: include two-way circuit
The forward conversion circuit that structure is identical, the former limit of two-way forward conversion circuit is in parallel, two-way forward conversion electricity
The secondary on road is in parallel so that output current capacity and output double, two-way forward conversion simultaneously
The former limit of circuit shares a switching tube, it is adaptable to high input voltage.
The DC/DC transformation topology circuit of a kind of high-voltage switch power supply the most according to claim 1, its
Feature is: just including input capacitance C1, the 3rd switching tube M3, first via forward conversion circuit, the second tunnel
Excitation converting circuit, sustained diode 6, output inductor L1, output filter capacitor C2 and the 3rd magnetic are multiple
Position diode D3, first via forward conversion circuit, the one end on former limit of the second road forward conversion circuit are connected to
One end of input capacitance C1, first via forward conversion circuit, another of former limit of the second road forward conversion circuit
End is all connected to one end of input capacitance C1 through the 3rd magnetic reset diode D3, first via forward conversion circuit,
The other end on the former limit of the second road forward conversion circuit is all connected to input capacitance C1 through the 3rd switching tube M3
The other end, the 3rd switching tube M3 is as described shared switching tube, first via forward conversion circuit, the second tunnel
The secondary of forward conversion circuit is in parallel, and through sustained diode 6, output inductor L1 and output filter
Export after the filtering charging circuit that ripple electric capacity C2 is formed.
The DC/DC transformation topology circuit of a kind of high-voltage switch power supply the most according to claim 2, its
Feature is: described first via forward conversion circuit includes the first switching tube M1, the first magnetic reset diode
D1, the first commutation diode D4 and the first transformator T1, the Same Name of Ends on the first former limit of transformator T1 and non-with
Name end is connected to input capacitance C1 through the first switching tube M1 and described 3rd magnetic reset diode D3 respectively
Positive pole, the Same Name of Ends on the first former limit of transformator T1 and non-same polarity respectively through the first magnetic reset diode D1 and
Described 3rd switching tube M3 is connected to the negative pole of input capacitance C1, the first transformator T1 secondary Same Name of Ends warp
Second commutation diode D5 is connected between sustained diode 6 and output inductor L1, the first transformation
Device T1 secondary non-same polarity is connected between sustained diode 6 and output filter capacitor C2.
The DC/DC transformation topology circuit of a kind of high-voltage switch power supply the most according to claim 2, its
Feature is: the second described road forward conversion circuit includes second switch pipe M2, the second magnetic reset diode
D2, the second commutation diode D5 and the second transformator T2, the Same Name of Ends on the second former limit of transformator T2 and non-with
Name end is connected to input capacitance C1 through second switch pipe M2 and described 3rd magnetic reset diode D3 respectively
Positive pole, the Same Name of Ends on the second former limit of transformator T2 and non-same polarity respectively through the second magnetic reset diode D2 and
Described 3rd switching tube M3 is connected to the negative pole of input capacitance C1, the second transformator T2 secondary Same Name of Ends warp
Second commutation diode D5 is connected between sustained diode 6 and output inductor L1, the second transformation
Device T2 secondary non-same polarity is connected between sustained diode 6 and output filter capacitor C2.
5. according to the DC/DC transformation topology electricity of the arbitrary described a kind of high-voltage switch power supply of claim 2～4
Road, is characterized in that: described input capacitance C1 is connected between the two ends of civil power, described output filtered electrical
Hold C2 two ends output direct current power source voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270417.9A CN105958827A (en) | 2016-04-27 | 2016-04-27 | DC/DC converter topology circuit for high voltage switching power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270417.9A CN105958827A (en) | 2016-04-27 | 2016-04-27 | DC/DC converter topology circuit for high voltage switching power supply |
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| CN105958827A true CN105958827A (en) | 2016-09-21 |
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| CN201610270417.9A Pending CN105958827A (en) | 2016-04-27 | 2016-04-27 | DC/DC converter topology circuit for high voltage switching power supply |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877701A (en) * | 2016-12-29 | 2017-06-20 | 上海嘉洲环保机电设备有限责任公司 | A kind of marine single-phase 220V is input into High Power Factor high-voltage power apparatus |
| CN112290803A (en) * | 2020-11-10 | 2021-01-29 | 格力博(江苏)股份有限公司 | Switch power supply capacity expansion circuit |
| CN112910270A (en) * | 2021-04-09 | 2021-06-04 | 重庆星座汽车科技有限公司 | Double forward converter circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002084754A (en) * | 2000-09-05 | 2002-03-22 | Mitsubishi Electric Corp | Dc-dc converter unit |
| CN101399499A (en) * | 2007-09-26 | 2009-04-01 | 力博特公司 | Power source module with wide input voltage range |
| CN104661405A (en) * | 2015-01-16 | 2015-05-27 | 南京航空航天大学 | Centralized power supply system for LED illumination in large area and driving method of centralized power supply system |
-
2016
- 2016-04-27 CN CN201610270417.9A patent/CN105958827A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002084754A (en) * | 2000-09-05 | 2002-03-22 | Mitsubishi Electric Corp | Dc-dc converter unit |
| CN101399499A (en) * | 2007-09-26 | 2009-04-01 | 力博特公司 | Power source module with wide input voltage range |
| CN104661405A (en) * | 2015-01-16 | 2015-05-27 | 南京航空航天大学 | Centralized power supply system for LED illumination in large area and driving method of centralized power supply system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877701A (en) * | 2016-12-29 | 2017-06-20 | 上海嘉洲环保机电设备有限责任公司 | A kind of marine single-phase 220V is input into High Power Factor high-voltage power apparatus |
| CN106877701B (en) * | 2016-12-29 | 2019-08-09 | 中国船舶重工集团公司第七〇四研究所 | A kind of marine single-phase 220V input High Power Factor high-voltage power apparatus |
| CN112290803A (en) * | 2020-11-10 | 2021-01-29 | 格力博(江苏)股份有限公司 | Switch power supply capacity expansion circuit |
| CN112910270A (en) * | 2021-04-09 | 2021-06-04 | 重庆星座汽车科技有限公司 | Double forward converter circuit |
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Application publication date: 20160921 |
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