CN206585467U - A kind of electric vehicle motor controller Switching Power Supply - Google Patents
A kind of electric vehicle motor controller Switching Power Supply Download PDFInfo
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- CN206585467U CN206585467U CN201720205977.6U CN201720205977U CN206585467U CN 206585467 U CN206585467 U CN 206585467U CN 201720205977 U CN201720205977 U CN 201720205977U CN 206585467 U CN206585467 U CN 206585467U
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Abstract
The utility model provides a kind of electric vehicle motor controller Switching Power Supply, including EMI filter circuit, control circuit power and drive circuit power supply, the output end of the EMI filter circuit connects the input of the control circuit power and the drive circuit power supply respectively；The control circuit power includes the first SEPIC single ended primary inductions Switching Power Supply being sequentially connected and control circuit incoming end, and the drive circuit power supply includes the 2nd SEPIC single ended primary inductions Switching Power Supply and the drive circuit incoming end being sequentially connected.The utility model layout rationally, apply in problem and shortage present on automobile by the Switching Power Supply for overcoming industrial motor controller architecture.
Description
Technical field
The utility model belongs to electric machine controller technical field, and in particular to a kind of electric vehicle motor controller switch electricity
Source.
Background technology
Electric machine controller is one of most crucial part of electric automobile, and it is like " heart " one of whole electric automobile
Sample, and the power supply of electric machine controller provides supply of electric power just as " blood " for whole controller.
Speed yet with Development of Electric Vehicles is too fast, the research and development people of most electric vehicle motor controller manufacturers
Member has mostly borrowed the Power Management Design scheme commonly used in industrial motor controller, industrial motor when controller power source is designed
Can be with normal work, in efficiency, cost, life-span and stability on automobile although the Switching Power Supply of controller architecture is used
On all there are many weak points.As shown in Fig. 2 being the conventional driving power supply Organization Chart of industrial drives device, this power supply is used
Scheme has the following disadvantages：
All voltages are all produced by same high frequency transformer, and transformer lead pin quantity is more, and difficulty of processing is big, multiple
The class of insulation between winding is relatively difficult to ensure card, the short trouble between winding and winding in transformer individual easily occurs, so transformation
The cost of the manufacturing cost of device and the maintenance in later stage after sale is all higher；Because transformer integrated level is high, pin is more, in welding
Must human assistance plug-in unit, low production efficiency, unsuitable production in enormous quantities when PCB；Power unit integrally takes
Topology layout area it is larger and height is higher, be difficult to reduce the volume of veneer and complete machine height, and then cause whole motor control
The power density of device processed is limited；Because transformer integrated level is too high, the layout of whole power unit can also be limited accordingly,
Flexible is unable in PCB design, this EMC antijamming capability that will result directly in complete machine declines, and rectification is difficult；Such as Fig. 2
The topological form of shown inverse-excitation type switch power-supply, because itself original leakage inductance is just than larger, operating efficiency is relatively low, and greatly
Leakage inductance easily produces larger counter electromotive force, and the impact of switch tube is larger；Adaptability to wide-voltage range is weak, when use exists
During using battery as input power, the operating efficiency when input supply voltage is relatively low or higher is very low；Because inverse-excitation type is opened
Powered-down source is only to provide load energy output in switching tube shut-off, so its transient control characteristic is poor, mutation is born
Carry corresponding relatively slow, current fluctuation is also larger.
Utility model content
The purpose of this utility model is to provide a kind of electric vehicle motor controller Switching Power Supply, overcomes industrial motor control
The Switching Power Supply of device framework is applied in problem and shortage present on automobile.
The utility model provides following technical scheme：
A kind of electric vehicle motor controller Switching Power Supply, including EMI filter circuit, control circuit power and drive circuit
Power supply, the output end of the EMI filter circuit connects the input of the control circuit power and the drive circuit power supply respectively
End；
The control circuit power includes the first SEPIC single ended primary inductions Switching Power Supply and control circuit incoming end, institute
The input for stating the first SEPIC single ended primary induction Switching Power Supplies connects the output end of the EMI filter circuit, described first
The output end connection control circuit incoming end of SEPIC single ended primary induction Switching Power Supplies；
The drive circuit power supply includes the 2nd SEPIC single ended primary inductions Switching Power Supply and drive circuit incoming end, institute
The input for stating the 2nd SEPIC single ended primary inductions connects the output end of the EMI filter circuit, and the 2nd SEPIC is single-ended
The output end of primary inductance connects the drive circuit incoming end.
It is preferred that, the control circuit incoming end includes+12V DC power supply terminals ,+5V power ends and+3.3V power ends, institute
The output end that+12V DC power supply terminals connect the first SEPIC single ended primary induction Switching Power Supplies is stated, the first SEPIC is mono-
The voltage of the relatively wide-voltage range of input is processed into+12V direct currents stable all the way by end primary inductance Switching Power Supply.
It is preferred that, the control circuit power also includes step-down switching power supply and LDO linear voltage regulators, the step-down switching
The input of power supply connects the output end of the first SEPIC single ended primary induction Switching Power Supplies, the step-down switching power supply
Output end connects the input of+5V power ends and the LDO linear voltage regulators respectively, the LDO linear voltage regulators it is defeated
Go out the end connection+3.3V power ends ,+12V voltages are reduced to the logics of+5V to electric machine controller by the step-down switching power supply
Circuit is powered, and+5V voltages can be also exported all the way to the LDO linear voltage regulators simultaneously, and the LDO linear voltage regulators are steady by+5V
The fixed MCU to+3.3V supply controllers is used.
It is preferred that, the drive circuit incoming end includes+12V power ends and IGBT drive ends, and+12V the power ends connect
Connect the output end of the 2nd SEPIC single ended primary inductions, the 2nd SEPIC single ended primary inductions Switching Power Supply is by input
Voltage compared with wide-voltage range is processed into+12V direct currents stable all the way.
It is preferred that, the drive circuit power supply also includes three half-bridge switch power sources, the input of the half-bridge switch power source
The output end of end connection the 2nd SEPIC single ended primary inductions, the output end of the half-bridge switch power source connects the IGBT
Drive end, the mutually isolated 24V power supplys needed for six road IGBT drivings are become by+12V voltages.
The beneficial effects of the utility model are：Topology layout area and highly small, whole motor control that power unit takes
The power density of device processed increases；Power generation configuration is flexibly reasonable, and the EMC performances of complete machine are good, strong antijamming capability, and rectification side
Just；Control circuit power and drive circuit power supply all use same SEPIC single ended primary induction Switching Power Supplies as front end, subtract
Lack material variety, reduce purchase cost and later maintenance cost；The operating efficiency of power module is high, switch pipe
Stress it is small, the working life of reliability and complete machine increases；Electric power source pair of module voltage range it is adaptable, even in
Also can there are higher operating efficiency and higher stability in the range of wider input supply voltage；And power module voltage x current
Transient response ability it is strong, be adapted to further types of mutation load.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and constitutes a part for specification, with this practicality
New embodiment is used to explain the utility model together, does not constitute to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the utility model structural representation；
Fig. 2 is the conventional driving power supply Organization Chart of industrial drives device；
Marked in figure：1.EMI filter circuits；2. control circuit power；3. drive circuit power supply；4.SEPIC is single-ended just
Level inductance switch power supply；5. half-bridge switch power source；6. step-down switching power supply；7.LDO linear voltage regulators；8.IGBT drive ends；9.
Control circuit incoming end.
Embodiment
As shown in figure 1, a kind of electric vehicle motor controller Switching Power Supply, the dc source of input first passes through EMI filtering
Circuit 1 is filtered, and is then divided into two-way respectively to control circuit power 2 and drive circuit power supply 3.Control circuit power 2 be first by
The voltage of the relatively wide-voltage range of input is processed into+12V direct currents stable all the way by SEPIC single ended primary inductions Switching Power Supply 4
Electricity, while give Buck step-down switching power supplys 6 is reduced to+5V to power logic circuitry by+12V voltages ,+5V voltages can also simultaneously
LDO linear voltage regulators 7 are given in output all the way, and+5V is stabilized to+3.3V supplies MCU and used by LDO linear voltage regulators 7.Drive circuit electricity
Source 3 is also first to be processed into the voltage of the relatively wide-voltage range of input by SEPIC single ended primary inductions Switching Power Supply 4 all the way to stablize
+ 12V direct currents, while give Half Bridge half-bridge switch power sources 7 by+12V voltages become 6 road IGBT driving needed for
Mutually isolated 24V power supplys.
As shown in figure 1, EMI filter circuit 1, which is mainly, filters out the high-frequency interferencing signal that input conduction is come in, hinder simultaneously
The high-frequency interferencing signal that the Switching Power Supply of rear end itself is produced is transmitted to front end, improves the antijamming capability of overall power supply.
As shown in figure 1, the effect of control circuit power 2 is to produce that signals of rotating transformer processing electricity can be supplied to
The burning voltage that road, logic circuit, and MCU are used.Due to control circuit power 2 input power supply more come from battery,
The scope range of the fluctuation of voltage of input power is very big, so control circuit power 2 is first by SEPIC single ended primary inductions Switching Power Supply 4
The voltage of the relatively wide-voltage range of input is processed into+12V direct currents stable all the way, signals of rotating transformer process circuit is given
Use, give Buck step-down switching power supplys 6 all the way with the time-division and+12V voltages are reduced to+5V to power logic circuitry, simultaneously+5V
Voltage can be also exported all the way to LDO linear voltage regulators 7, and+5V is stabilized to+3.3V supplies MCU and used by LDO linear voltage regulators 7.
As shown in figure 1, the input power supply of drive circuit power supply 3 is also to come from battery, the voltage pulsation of input power
Scope is very big, so drive circuit power supply 3 is also first by SEPIC single ended primary inductions Switching Power Supply 4 by the relatively Width funtion of input
The voltage of scope is processed into+12V direct currents stable all the way, and+12V voltages divide while power supply is provided to driving optocoupler primary side
+ 12V voltage drops are become mutually isolated needed for 6 road IGBT drive by Cheng Sanlu to Half Bridge half-bridge switch power sources 7
24V power supplys, the mutually isolated 24V power supplys needed for 6 road IGBT drivings you can well imagine confession per+16V and the components of -8V two is all divided into all the way
Used when turning on and off IGBT to IGBT.
As shown in figure 1, SEPIC single ended primary inductions Switching Power Supply 4 is core of the present utility model, its effect is
The larger voltage of fluctuation will be inputted and be processed into+12V voltages reliable and stable all the way, the circuit works for voltage and current double closed-loop,
While abandoning, price, volume are big, area is big, weight is heavy and highly high plug-in type transformer is as energy stores and exchange
Power source design, change into and carry out energy stores and exchange using chip inductor, so not only greatly reduce the circuit board of occupancy
Area and weight, while convenient use mechanization high-volume processing circuit board greatly improved operating efficiency and also enter one
The artificial degree of participation for reducing complete machine vehicle reduces operation cost.Control circuit power 2 and drive circuit power supply 3 are all used
Same SEPIC single ended primary inductions Switching Power Supply 4 decreases material variety as front end, increases the use of similar material
Quantity can also reduce purchase cost and later maintenance cost.
As shown in figure 1, the effect of Half Bridge half-bridge switch power sources 5 is that+12V voltages are become into 6 road IGBT drivings institute
The mutually isolated 24V power supplys needed.Because Half Bridge half-bridge switch power sources 5 have SEPIC single ended primary induction Switching Power Supplies
4 as front end, so its acquisition is a highly stable reliable+12V power supply, no matter the electricity of the battery on electric automobile
How pressure fluctuates, and has the shield of front end, and it is all without there is any impact.So Half Bridge half-bridge switch power sources 5 are works
Make the state in complete open loop, so also cleverly eliminate complex and expensive while the power quality needed for ensure that driving
Isolation voltage feedback circuit, finally make whole power-supply system more it is succinct efficiently.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, although ginseng
The utility model is described in detail according to previous embodiment, for those skilled in the art, it still can be with
Technical scheme described in foregoing embodiments is modified, or equivalent substitution is carried out to which part technical characteristic.It is all
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvements made etc. should be included in this practicality
Within new protection domain.
Claims (5)
1. a kind of electric vehicle motor controller Switching Power Supply, it is characterised in that including EMI filter circuit, control circuit power
With drive circuit power supply, the output end of the EMI filter circuit connects the control circuit power and the drive circuit respectively
The input of power supply；
The control circuit power includes the first SEPIC single ended primary inductions Switching Power Supply and control circuit incoming end, described the
The input of one SEPIC single ended primary induction Switching Power Supplies connects the output end of the EMI filter circuit, the first SEPIC
The output end connection control circuit incoming end of single ended primary induction Switching Power Supply；
The drive circuit power supply includes the 2nd SEPIC single ended primary inductions Switching Power Supply and drive circuit incoming end, described the
The input of two SEPIC single ended primary inductions connects the output end of the EMI filter circuit, the 2nd SEPIC single-ended primaries
The output end of inductance connects the drive circuit incoming end.
2. a kind of electric vehicle motor controller Switching Power Supply according to claim 1, it is characterised in that the control electricity
Road incoming end includes+12V DC power supply terminals ,+5V power ends and+3.3V power ends, and+12V DC power supply terminals the connection is described
The output end of first SEPIC single ended primary induction Switching Power Supplies, the first SEPIC single ended primary inductions Switching Power Supply will be inputted
The voltage of relatively wide-voltage range be processed into all the way stable+12V direct currents.
3. a kind of electric vehicle motor controller Switching Power Supply according to claim 2, it is characterised in that the control electricity
Road power supply also includes step-down switching power supply and LDO linear voltage regulators, the input connection described first of the step-down switching power supply
The output end of SEPIC single ended primary induction Switching Power Supplies, the output end of the step-down switching power supply connects the+5V power supplys respectively
End and the input of the LDO linear voltage regulators, the output end connection+3.3V power ends of the LDO linear voltage regulators.
4. a kind of electric vehicle motor controller Switching Power Supply according to claim 1, it is characterised in that the driving electricity
Road incoming end includes+12V power ends and IGBT drive ends, and+12V the power ends connect the 2nd SEPIC single-ended primaries electricity
The voltage of the relatively wide-voltage range of input is processed into by the output end of sense, the 2nd SEPIC single ended primary inductions Switching Power Supply
+ 12V the direct currents stablized all the way.
5. a kind of electric vehicle motor controller Switching Power Supply according to claim 4, it is characterised in that the driving electricity
Road power supply also includes three half-bridge switch power sources, and input connection the 2nd SEPIC of the half-bridge switch power source is single-ended just
The output end of level inductance, the output end of the half-bridge switch power source connects the IGBT drive ends, and+12V voltages are become into six tunnels
Mutually isolated 24V power supplys needed for IGBT drivings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720205977.6U CN206585467U (en) | 2017-03-03 | 2017-03-03 | A kind of electric vehicle motor controller Switching Power Supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720205977.6U CN206585467U (en) | 2017-03-03 | 2017-03-03 | A kind of electric vehicle motor controller Switching Power Supply |
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| CN206585467U true CN206585467U (en) | 2017-10-24 |
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| CN201720205977.6U Active CN206585467U (en) | 2017-03-03 | 2017-03-03 | A kind of electric vehicle motor controller Switching Power Supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834823A (en) * | 2017-11-09 | 2018-03-23 | 天津英捷利汽车技术有限责任公司 | A kind of three-phase metal-oxide-semiconductor driving power for electric motor car AC machine controller |
-
2017
- 2017-03-03 CN CN201720205977.6U patent/CN206585467U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834823A (en) * | 2017-11-09 | 2018-03-23 | 天津英捷利汽车技术有限责任公司 | A kind of three-phase metal-oxide-semiconductor driving power for electric motor car AC machine controller |
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Address after: 215000 No. 60 Tongan Road, Wujiang District, Suzhou, Jiangsu Patentee after: Stamina stamina Power Technology (Suzhou) Co., Ltd. Address before: 215000 No. 60 Tongan Road, Wujiang District, Suzhou, Jiangsu Patentee before: Suzhou Simo pass Power Technology Co. Ltd. |