CN206908527U - One kind is without bridge liftable die mould DC power supply circuit - Google Patents
One kind is without bridge liftable die mould DC power supply circuit Download PDFInfo
- Publication number
- CN206908527U CN206908527U CN201720614241.4U CN201720614241U CN206908527U CN 206908527 U CN206908527 U CN 206908527U CN 201720614241 U CN201720614241 U CN 201720614241U CN 206908527 U CN206908527 U CN 206908527U
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- power supply
- power
- supply circuit
- die mould
- igbt
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Abstract
The utility model discloses one kind without bridge liftable die mould DC power supply circuit, including：Filter inductance, boost inductance, power IGBT, electrochemical capacitor, fly-wheel diode, divider resistance.By controlling three power IGBT driving pulse break-makes, filter inductance is filtered the utility model for AC, and continuous current circuit is formed by continuous diode, realizes no bridge liftable die mould DC power supply circuit design.The circuit switch device is few, cost-effective, and control principle is clear, control signal occurs simply.
Description
Technical field
The utility model patent single-phase power factor correcting device field, more particularly, to one kind without bridge liftable die mould direct current
Power circuit.
Background technology
The converters of uncontrollable rectifier bridge and electrochemical capacitor as front stage circuits in single-phase power network, no matter rear class
The load of which kind of impedance property is connected, belongs to nonlinear load, harmonic current pollution is produced to power network, it is impossible to meet
Harmonic Current Limits specified in IEC61000-3-2 and IEC61000-3-1, and net side power factor is relatively low, is that this is necessary
Using measure of power factor correction.
The content of the invention
For the topology of current BUCK circuits or BOOST circuits, the purpose of this utility model is to propose that one kind can rise without bridge
Step-down type dc power circuit, a kind of good selection scheme is provided for wireless charging device or automobile charging pile equipment.
The technical solution of the utility model is：One kind without bridge liftable die mould DC power supply circuit, including:Filter inductance,
Boost inductance, power IGBT, electrochemical capacitor, power diode, shunt resistance；By controlling three power IGBT driving pulses to lead to
Disconnected, power diode provides discharge loop, and filter inductance filters for AC, realizes circuit lifting press function, the circuit control
System is simple, and switching device is few, cost-effective, and can realize buck-boost type dc source purpose.
It is described a kind of without bridge liftable die mould DC power supply circuit, including：First inductance, the second inductance, the first electric capacity,
One diode, the second diode, the 3rd diode, the 4th fast recovery diode, the first power IGBT, the second power IGBT,
Three power IGBT, the first DC filter capacitor, first resistor, second resistance, 3rd resistor, the 4th resistance.Wherein：First inductance
One end is connected with power firestreak, and the first inductance other end, first electric capacity one end, the first diode cathode and the first power IGBT are sent out
Emitter-base bandgap grading is connected, and the first electric capacity other end, the second diode cathode, the second power IGBT emitter stages are connected with zero-power line, and first
Diode cathode, the second diode cathode, the 3rd diode cathode are connected with second inductance one end, the first power IGBT current collections
Pole, the second power IGBT colelctor electrodes are connected with first resistor one end, the first resistor other end, the 3rd diode cathode, the 3rd work(
Rate IGBT emitter stages, the first DC filter capacitor negative electrode and the 4th resistance one end form negative output terminal, the second inductance other end, the
Three power IGBT colelctor electrodes are connected with the 4th fast recovery diode negative pole, the 4th fast recovery diode positive pole, the first DC filtering
Capacitor anode, second resistance a little form positive output end, and the second resistance other end is connected with 3rd resistor one end, and 3rd resistor is another
One end forms DC voltage sampling end with the 4th resistance other end.
The advantages of the utility model：
1st, drive signal control is simple needed for three road power IGBT, it is easy to accomplish.
2nd, circuit realiration output direct current stepping functions, it can obtain wide-range voltage regulation.
3rd, circuit is less using component, reduces cost and volume.
4th, circuit realiration efficiency high, ripple are small.
Brief description of the drawings
Fig. 1 be shown as the embodiment of the utility model one without bridge liftable die mould DC power supply circuit structural representation.
Realization, functional characteristics and the advantage of the utility model purpose further illustrate with reference to the accompanying drawings.
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that in the case where not conflicting, following examples and implementation
Feature in example can be mutually combined.
In a certain embodiment, the type selecting and parameter of each device are：
AC-input voltage wide scope, 220V ± 15%, power frequency 50Hz or 60Hz, rated output direct current average voltage
390V, input power 6kW；
Boost inductance：2.2mH, 40A；
Bidirectional switch module, IGBT chopping frequencies：40kHz；
Electrochemical capacitor E1：450V, 0.47uF；
Electrochemical capacitor E2：450V, 680 μ F, four parallel connections；
Sampling resistor R1：3M Ω, 5W；
Sampling resistor R2：16.8k Ω, 5W；
Diode D1-D4：600V, 40A/100 DEG C；
Fast recovery diode FRD5；
The key principle of the present invention is：
(1) without bridge liftable die mould DC power supply circuit, as shown in figure 1, the positive half cycle of input power, the first power IGBT is protected
Off state is held, the second power IGBT and the 3rd power IGBT break-make is consistent, when the second power IGBT and the 3rd power
When IGBT is opened, power supply charges to boost inductance, and when the second power IGBT and the 3rd power IGBT is turned off, input power can not
Powered for DC side, boost inductance forms discharge loop by the 3rd diode continuousing flow.Realize buck functionality.
(2) input power negative half period, the second power IGBT are held off, the first power IGBT and the 3rd power IGBT
Break-make be consistent, when the first power IGBT and the 3rd power IGBT is opened, power supply to boost inductance charge, when the first work(
When rate IGBT and the 3rd power IGBT is turned off, input power can not be that DC side is powered, and boost inductance is continued by the 3rd diode
Stream forms discharge loop.Realize buck functionality.
(3) when the first power IGBT and the second power IGBT keeps normal open state, only the 3rd power IGBT copped waves, tradition
BOOST circuits, realize boost function.
The present invention is described using new specific embodiment above.It is to be appreciated that not office of the invention
It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims,
This has no effect on the substantive content of the present invention.
Claims (5)
1. one kind is without bridge liftable die mould DC power supply circuit, it is characterised in that：Filter inductance, boost inductance, power IGBT, electricity
Solve electric capacity, fly-wheel diode, shunt resistance；By controlling three power IGBT driving pulse break-makes, power supply is controlled to DC side
Power supply；Filter inductance filters for AC；DC capacitor filters for DC side；Continuous diode provides for boost inductance to discharge back
Road；DC voltage and inductive current are sampled by shunt resistance.
2. according to one kind described in claim 1 without bridge liftable die mould DC power supply circuit, it is characterised in that：Three power
IGBT break-makes, power IGBT is using winged million quick igbt chips.
3. according to one kind described in claim 1 without bridge liftable die mould DC power supply circuit, it is characterised in that：It is fast to recover two poles
Pipe is using winged million company's fast recovery diodes.
4. according to one kind described in claim 1 without bridge liftable die mould DC power supply circuit, it is characterised in that：Inductive current is adopted
Shunt resistance very little needed for sample (<5m Ω), using high-precision cement or metallic resistance.
5. according to one kind described in claim 1 without bridge liftable die mould DC power supply circuit, it is characterised in that：Boost inductance makes
With Tian Cun companies 2.2mH inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614241.4U CN206908527U (en) | 2017-05-27 | 2017-05-27 | One kind is without bridge liftable die mould DC power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614241.4U CN206908527U (en) | 2017-05-27 | 2017-05-27 | One kind is without bridge liftable die mould DC power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206908527U true CN206908527U (en) | 2018-01-19 |
Family
ID=61286516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720614241.4U Expired - Fee Related CN206908527U (en) | 2017-05-27 | 2017-05-27 | One kind is without bridge liftable die mould DC power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206908527U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964450A (en) * | 2018-06-01 | 2018-12-07 | 上海交通大学 | A kind of DC power supply accesses compound circuit and its application of AC power source |
| CN109167524A (en) * | 2018-11-06 | 2019-01-08 | 深圳市高益智能电气有限公司 | A kind of three-phase alternating current-direct current buck translation circuit and its control method |
-
2017
- 2017-05-27 CN CN201720614241.4U patent/CN206908527U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964450A (en) * | 2018-06-01 | 2018-12-07 | 上海交通大学 | A kind of DC power supply accesses compound circuit and its application of AC power source |
| CN109167524A (en) * | 2018-11-06 | 2019-01-08 | 深圳市高益智能电气有限公司 | A kind of three-phase alternating current-direct current buck translation circuit and its control method |
| CN109167524B (en) * | 2018-11-06 | 2024-06-07 | 南京熊猫电子股份有限公司 | Three-phase alternating-current/direct-current buck-boost conversion circuit and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20180527 |