CN108258894A - A kind of high pressure precharging circuit based on BOOST booster circuits - Google Patents
A kind of high pressure precharging circuit based on BOOST booster circuits Download PDFInfo
- Publication number
- CN108258894A CN108258894A CN201810096234.9A CN201810096234A CN108258894A CN 108258894 A CN108258894 A CN 108258894A CN 201810096234 A CN201810096234 A CN 201810096234A CN 108258894 A CN108258894 A CN 108258894A
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- Prior art keywords
- power supply
- high pressure
- booster circuits
- btn
- boost booster
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention relates to a kind of high pressure precharging circuits based on BOOST booster circuits, include electric machine controller load circuit, and electric machine controller load circuit is connected with BOOST booster circuits.Beneficial effects of the present invention：During boost charge compared with the high pressure precharging circuit being made of preliminary filling relay, reduce the loss of energy, and improve the safety of entire precharging circuit.
Description
Technical field
The present invention relates to charging circuit technical field, it particularly relates to which a kind of high pressure based on BOOST booster circuits is pre-
Charging circuit.
Background technology
By the high pressure precharging circuit that preliminary filling relay forms by boosting of the preliminary filling resistance completion to pre-charging capacitor, due to pre-
The resistance value of preliminary filling resistance in relay is filled, the voltage maximum at pre-charging capacitor both ends can only achieve the 90% of high input voltage, and connect
Tentaculum is closed moment, due to the pressure difference between high input voltage and pre-charging capacitor, larger current will be generated in circuit, to contactor
And other devices in circuit cause to impact, and easily damage contactor and other devices and safety is relatively low.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Invention content
For the above-mentioned technical problem in the relevant technologies, the present invention proposes that a kind of high pressure based on BOOST booster circuits is pre-
Charging circuit can solve problems of the prior art.
To realize the above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of high pressure precharging circuit based on BOOST booster circuits includes electric machine controller load circuit, the motor control
Device load circuit is connected with BOOST booster circuits, wherein,
The electric machine controller load circuit includes power supply BTn, the power supply BTn and is parallel with motor B0, the power supply BTn and electricity
Contactor S0 is connected between machine B0；
The anode that the electric machine controller load circuit includes power supply BT0, the power supply BT0 passes through inductance L1 connection field-effect tube
The drain electrode of Q0 and the anode of diode D0, the cathode of the diode D0 are connected with one end of pre-charging capacitor C0, the power supply BT0
Cathode be connected with the source electrode of the field-effect tube Q0 and the other end of the pre-charging capacitor C0, the grid of the field-effect tube Q0
It is connected with switching tube Q；
The cathode of the power supply BTn connects the cathode of the power supply BT0, and the anode of the power supply BTn connects the contactor S0
One end, the other end of the contactor S0 connects the cathode of the diode D0 and one end of motor B0.
Further, the switching tube Q is metal-oxide-semiconductor or triode.
Further, the driving voltage of the switching tube Q is pwm signal.
Further, one end ground connection of the power supply BTn and power supply BT0.
Beneficial effects of the present invention：Can by boost by pre-charging capacitor both end voltage rise to input high pressure 100%, it is whole
A process there's almost no the loss of energy, and contactor is closed moment there is no high current in circuit, safety obtain compared with
It is big to improve；The circuit can be applied to battery management system high pressure precharging circuit, replace the high pressure being made of preliminary filling relay pre-
Charging circuit.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of circuit of the high pressure precharging circuit based on BOOST booster circuits described according to embodiments of the present invention
Figure；
Fig. 2 is a kind of BOOST boostings of the high pressure precharging circuit based on BOOST booster circuits described according to embodiments of the present invention
The circuit diagram of circuit.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's all other embodiments obtained belong to what the present invention protected
Range.
As illustrated in fig. 1 and 2, a kind of high pressure precharge based on BOOST booster circuits according to embodiments of the present invention
Road includes electric machine controller load circuit, and the electric machine controller load circuit is connected with BOOST booster circuits, wherein, institute
State electric machine controller load circuit and include power supply BTn, the power supply BTn be parallel with motor B0, the power supply BTn and motor B0 it
Between be connected with contactor S0；The electric machine controller load circuit includes power supply BT0, and the anode of the power supply BT0 passes through inductance
The drain electrode of L1 connection field-effect tube Q0 and the anode of diode D0, the cathode of the diode D0 are connected with the one of pre-charging capacitor C0
End, the cathode of the power supply BT0 are connected with the source electrode of the field-effect tube Q0 and the other end of the pre-charging capacitor C0, the field
The grid of effect pipe Q0 is connected with switching tube Q；The cathode of the power supply BTn connects the cathode of the power supply BT0, the power supply
The anode of BTn connects one end of the contactor S0, the other end of the contactor S0 connect the diode D0 cathode and
One end of motor B0.
In one particular embodiment of the present invention, the switching tube Q is metal-oxide-semiconductor or triode.
In one particular embodiment of the present invention, the driving voltage of the switching tube Q is pwm signal.
In one particular embodiment of the present invention, one end ground connection of the power supply BTn and power supply BT0.
In order to facilitate understand the present invention above-mentioned technical proposal, below by way of in specifically used mode to the present invention it is above-mentioned
Technical solution is described in detail.
BOOST booster circuits as shown in Figure 2 are a kind of common switch DC booster circuits, it can make output voltage remote
Far above input voltage, which is the energy transfer process of inductance L1, and inductance L1 absorbs energy during charging, allows switching tube
The make and break process of Q constantly repeats, and can obtain the voltage higher than power supply BT0 at pre-charging capacitor C0 both ends, switching tube Q for metal-oxide-semiconductor or
Person is triode, and the driving voltage of switching tube Q is generally pwm signal, and switch tube Q is realized by the frequency for adjusting pwm signal
Break-make repeatedly control so as to fulfill the charging to pre-charging capacitor C0, whole process energy loss is few, and by preliminary filling relay
The high pressure precharging circuit of composition is compared, and reduces the loss of energy.
After being boosted by BOOST booster circuits, pressure difference is minimum between pre-charging capacitor both end voltage and input high pressure, such as schemes
Shown in 2, in contactor S0 closure moments, the electric current in circuit loop is minimum, without to the device in contactor S0 and circuit
It causes to impact, improves the safety of entire precharging circuit.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (4)
1. a kind of high pressure precharging circuit based on BOOST booster circuits, includes electric machine controller load circuit, feature exists
In, the electric machine controller load circuit is connected with BOOST booster circuits, wherein,
The electric machine controller load circuit includes power supply BTn, the power supply BTn and is parallel with motor B0, the power supply BTn and electricity
Contactor S0 is connected between machine B0；
The anode that the electric machine controller load circuit includes power supply BT0, the power supply BT0 passes through inductance L1 connection field-effect tube
The drain electrode of Q0 and the anode of diode D0, the cathode of the diode D0 are connected with one end of pre-charging capacitor C0, the power supply BT0
Cathode be connected with the source electrode of the field-effect tube Q0 and the other end of the pre-charging capacitor C0, the grid of the field-effect tube Q0
It is connected with switching tube Q；
The cathode of the power supply BTn connects the cathode of the power supply BT0, and the anode of the power supply BTn connects the contactor S0
One end, the other end of the contactor S0 connects the cathode of the diode D0 and one end of motor B0.
2. a kind of high pressure precharging circuit based on BOOST booster circuits according to claim 1, which is characterized in that described
Switching tube Q is metal-oxide-semiconductor or triode.
3. a kind of high pressure precharging circuit based on BOOST booster circuits according to claim 2, which is characterized in that described
The driving voltage of switching tube Q is pwm signal.
4. a kind of high pressure precharging circuit based on BOOST booster circuits according to claim 1, which is characterized in that described
One end of power supply BTn and power supply BT0 are grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810096234.9A CN108258894A (en) | 2018-01-31 | 2018-01-31 | A kind of high pressure precharging circuit based on BOOST booster circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810096234.9A CN108258894A (en) | 2018-01-31 | 2018-01-31 | A kind of high pressure precharging circuit based on BOOST booster circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108258894A true CN108258894A (en) | 2018-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810096234.9A Pending CN108258894A (en) | 2018-01-31 | 2018-01-31 | A kind of high pressure precharging circuit based on BOOST booster circuits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108258894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022073450A1 (en) * | 2020-10-10 | 2022-04-14 | 长城汽车股份有限公司 | Direct current converter, control method, vehicle, device, program, and medium |
-
2018
- 2018-01-31 CN CN201810096234.9A patent/CN108258894A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022073450A1 (en) * | 2020-10-10 | 2022-04-14 | 长城汽车股份有限公司 | Direct current converter, control method, vehicle, device, program, and medium |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180706 |