CN104953822B - Vehicle Controller voltage stabilizing power supplying circuit and Vehicle Controller voltage stabilizing supply electric installation - Google Patents
Vehicle Controller voltage stabilizing power supplying circuit and Vehicle Controller voltage stabilizing supply electric installation Download PDFInfo
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- CN104953822B CN104953822B CN201510401873.8A CN201510401873A CN104953822B CN 104953822 B CN104953822 B CN 104953822B CN 201510401873 A CN201510401873 A CN 201510401873A CN 104953822 B CN104953822 B CN 104953822B
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Abstract
The invention discloses a kind of Vehicle Controller voltage stabilizing power supplying circuits and Vehicle Controller voltage stabilizing to supply electric installation, the Vehicle Controller voltage stabilizing power supplying circuit includes power supply, voltage-stabilizing power supply system and Vehicle Controller 5V power modules, the power supply is powered by the voltage-stabilizing power supply system to the Vehicle Controller 5V power modules, it is characterized in that, the voltage-stabilizing power supply system includes DC/DC power modules and DC/DC switching frequency selecting modules, the DC/DC power modules are connected respectively with the power supply and the Vehicle Controller 5V power modules, the DC/DC switching frequencies selecting module is connected to adjust DC/DC switching frequencies with the DC/DC power modules.It can be in the case where power supply voltage quickly falls, it is ensured that the output of Vehicle Controller 5V power modules reaches 5V voltages, meets requirement of the Vehicle Controller to 5V power module voltages.
Description
Technical field
This application involves the voltage stabilizing power supply technique that a kind of low voltage starting supply voltage quickly falls, more particularly to automobile work
The Vehicle Controller voltage stabilizing power supplying circuit in industry field and Vehicle Controller voltage stabilizing supply electric installation.
Background technology
The majorities such as the controller of onboard system, actuator, sensor are 5V power source supplying voltages, and their power supply
Be directly from on-vehicle battery, but low temperature environment, battery supply feed, lubricating oil viscosity be too high or traffic congestion under, cell voltage
Cell voltage can be caused quick low to 4.5V or so, can not ensure 5V power supplys because of the factors such as start and stop and vehicle-mounted overload
Normal output, Vehicle Controller can occur to reset (Reset), so as to can not obtain the core components such as engine and gearbox
Key parameter thus needs to restart, and the consumption of the energy will be increased or even automobile occur because repeatedly starting by repeatedly starting
Ashtray phenomenon and can not start.
For this purpose, a kind of solution of common low voltage starting disclosed in the prior art, as shown in Figure 1, in 5V power supplys
Input terminal increase level-one DC/DC (Switching Power Supply) export, to ensure the normal working voltage of Vehicle Controller 5V power modules,
But so DC/DC (Switching Power Supply) DC/DC switching frequencies are fixed, it is suitable for low startup cell voltage and falls at a slow speed and vehicle-mounted control
Device light load condition processed, and cell voltage is a kind of quick falling process during for its actual condition, i.e. low voltage starting, and control
Load when device works is generally large, and there are two deficiencies for the program：One, which is in response to speed, does not catch up with, and can still cause vehicle-mounted control
Device 5V power modules input terminal processed is less than the situation of 5V；Second is that the program is integrated into Vehicle Controller, it is necessary to change existing
Vehicle Controller power supply circuit construction is unfavorable for being widely popularized, thus according to not well solving this low voltage starting problem.
The content of the invention
It is contemplated that it solves at least some of the technical problems in related technologies.For this purpose, the present invention
One purpose is to propose a kind of Vehicle Controller voltage stabilizing power supplying circuit and Vehicle Controller voltage stabilizing for electric installation, in power supply
In the case that voltage quickly falls, it can be ensured that the output of Vehicle Controller 5V power modules reaches 5V voltages.
It is another object of the present invention to propose that a kind of and Vehicle Controller voltage stabilizing, can be original without changing for electric installation
In the case of Vehicle Controller power supply circuit construction, situation about quickly falling in power supply voltage is realized by complementary module
Under, it is ensured that the output of Vehicle Controller 5V power modules reaches 5V voltages.
In order to achieve the above objectives, one aspect of the present invention embodiment proposes a kind of Vehicle Controller voltage stabilizing power supplying circuit, institute
Vehicle Controller voltage stabilizing power supplying circuit is stated, it is described including power supply, voltage-stabilizing power supply system and Vehicle Controller 5V power modules
Power supply is powered by the voltage-stabilizing power supply system to the Vehicle Controller 5V power modules, wherein voltage stabilizing power supply system
System includes DC/DC power modules and DC/DC switching frequency selecting modules, and the DC/DC power modules are electric with the power supply respectively
Source is connected with the Vehicle Controller 5V power module input terminals, the DC/DC switching frequencies selecting module and DC/DC electricity
Source module is adjusted frequency interface and is connected to adjust DC/DC switching frequencies.
The Vehicle Controller voltage stabilizing power supplying circuit proposed according to embodiments of the present invention can be by setting suitable DC/DC voltages
Value when supply voltage quickly falls with Vehicle Controller heavy duty, can ensure that the 5V power inputs that DC/DC outputs meet are normal
Operating voltage requirement is realized the selection of DC/DC switch of the power supply module frequencies by DC/DC switching frequencies selecting module, powered
When power supply is quickly fallen with Vehicle Controller heavy duty, all 5V power modules that the output of DC/DC power modules meets can be ensured
Normal working voltage requirement.
According to a further embodiment of the invention, a kind of Vehicle Controller voltage stabilizing power supplying circuit is provided, including power supply, surely
Electric power system, 5V power modules, the first counnter attack module and the second counnter attack module are pressed, the voltage-stabilizing power supply system includes DC/DC electricity
Source module and DC/DC switching frequency selecting modules, the DC/DC power modules input terminal is connected with the power supply, described
DC/DC power module outlets are connected by the first counnter attack module with the 5V power modules input terminal, and the DC/DC is opened
Frequency-selecting module is closed to be connected to adjust DC/DC switching frequencies, institute with the adjustable frequency interface of the DC/DC power modules
Power supply is stated also to be connected with the input terminal of the 5V power modules 51 by the second counnter attack module.
Another specific embodiment of the present invention, under normal circumstances, power supply is by the second counnter attack module directly to 5V
Power module is powered, and when power supply input is quickly fallen with Vehicle Controller heavy duty, voltage-stabilizing power supply system passes through first
Counnter attack module is powered with the pattern of bypass to 5V power modules 51, can be by setting suitable DC/DC voltage values, in power supply electricity
When pressure is quickly fallen with Vehicle Controller heavy duty, it can ensure that the 5V power inputs normal working voltage that DC/DC outputs meet will
It asks, the selection of DC/DC switch of the power supply module frequencies is realized by DC/DC switching frequencies selecting module, it is vehicle-mounted can so to meet this
The voltage stability requirements of 5V power modules on controller, and do not change the power supply circuit knot of its Vehicle Controller 5V power modules
Structure.
Materialization according to another embodiment of the invention, the first counnter attack module and the second counnter attack module are equal
For diode, the anode of the first counnter attack module is connected with the output terminal of the DC/DC power modules, the first anti-reverse
The cathode of block is connected with the input terminal of the 5V power modules, and anode and the power supply of the second counnter attack module connect
It connects, the cathode of the second counnter attack module is connected with the input terminal of the 5V power modules.
Further specific embodiment according to the present invention, the corresponding switch of the DC/DC switching frequencies selecting module
Frequency selection purposes scope is 100kHz~2MHz.
Further, a specific embodiment of the invention, the corresponding switch of the DC/DC switching frequencies selecting module
Frequency is 500kHz.
A specific embodiment according to the present invention, the DC/DC power modules include DC/DC controls chip, DC/DC is opened up
Structure, partial pressure network and resonant earthed system are flutterred, wherein the break-make of DC/DC control chip controls topological structures, the partial pressure net
Road connects the output terminal of the topological structure for setting DC/DC electric power output voltages, the potential-divider network also with the DC/DC
Chip connection is controlled for sampling DC/DC electric power output voltages, the resonant earthed system and the DC/DC chip is controlled to be connected with
For the stability of entire DC/DC power modules.
Further, a specific embodiment of the invention, the DC/DC controls chip have frequency-adjustable section interface,
The frequency-adjustable section interface connects DC/DC switching frequency selecting modules.
Further, the DC/DC topological structures are Boost topological structures.
Further, the output voltage of the DC/DC power modules setting is not less than the 5V power modules output voltage
1.6 times of value.
In order to achieve the above objectives, another aspect of the present invention embodiment proposes a kind of Vehicle Controller voltage stabilizing and supplies electric installation,
The Vehicle Controller voltage stabilizing includes Vehicle Controller voltage stabilizing power supplying circuit as described above for electric installation.
Further specific technical solution and technique effect will be showed by specific examples below.
Description of the drawings
Fig. 1 is existing Vehicle Controller voltage stabilizing power supplying circuit module diagram；
The first Vehicle Controller voltage stabilizing power supplying circuit of Fig. 2 present invention and Vehicle Controller voltage stabilizing are illustrated for electric installation
Figure；
Second of Vehicle Controller voltage stabilizing power supplying circuit of Fig. 3 present invention and Vehicle Controller voltage stabilizing are illustrated for electric installation
Figure；
The voltage pattern that the power supply of Fig. 4 Vehicle Controller voltage stabilizing power supplying circuit embodiments of the present invention falls；
In Vehicle Controller minimum load, (vehicle-mounted control 5V power supplys disappear Fig. 5 Vehicle Controller voltage stabilizing power supplying circuits of the present invention
Power consumption stream is 20mA) under the conditions of, the design sketch of 2 output voltage of voltage-stabilizing power supply system；
Fig. 6 Vehicle Controller voltage stabilizing power supplying circuits of the present invention are in Vehicle Controller maximum load (Vehicle Controller 5V power supplys
Consumption electric current is 1A) under the conditions of, the design sketch of 2 output voltage of voltage-stabilizing power supply system.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the Vehicle Controller voltage stabilizing power supplying circuit module and vehicle-mounted of proposition of the embodiment of the present invention described
Controller voltage stabilizing supplies electric installation.
As shown in Fig. 2, Vehicle Controller voltage stabilizing power supplying circuit, including power supply 1, voltage-stabilizing power supply system 2 and vehicle-mounted control
Device 5V power modules 5 processed, the power supply 1 is by the voltage-stabilizing power supply system 2 to the Vehicle Controller 5V power modules 5
Power supply, wherein the voltage-stabilizing power supply system 2 includes DC/DC power modules 4 and DC/DC switching frequencies selecting module 3, the DC/
4 input terminal of DC power module is connected with the power supply 1,4 output terminal of DC/DC power modules and the Vehicle Controller
5 input terminal of 5V power modules connects, the DC/DC switching frequencies selecting module and the adjustable frequency of the DC/DC power modules
Rate interface is connected to adjust DC/DC switching frequencies.
The Vehicle Controller voltage-stabilizing power supply system 2 proposed according to embodiments of the present invention can be by setting suitable DC/DC voltages
Value when power supply 1 (Vehicular accumulator cell) quickly falls with Vehicle Controller heavy duty, can ensure that DC/DC outputs meet 5V
The requirement of power input normal working voltage realizes 4 switching frequency of DC/DC power modules by DC/DC switching frequencies selecting module 3
Selection, when power supply 1 inputs quick fall with Vehicle Controller heavy duty, can ensure that the output of DC/DC power modules 4 is full
Sufficient 5 normal working voltage of Vehicle Controller 5V power modules requirement.
Implementation illustration shown in Fig. 2 is a kind of independent working mode, can be all 5V power modules of Vehicle Controller
Or the 5V power modules of certain several Vehicle Controller provide burning voltage simultaneously, it can in addition contain provide a kind of bypass operating mode
Embodiment, stable voltage requirements can be provided individual 5V power modules, as shown in figure 3, a kind of Vehicle Controller is steady
Power supply circuit is pressed, including power supply 1, voltage-stabilizing power supply system 2,5V power modules 51, the first counnter attack module 6 and the second anti-reverse
Block 7, the voltage-stabilizing power supply system 2 include DC/DC power modules 4 and DC/DC switching frequencies selecting module 3, the DC/DC power supplys
4 input terminal of module is connected with the power supply 1, and 4 output terminal of DC/DC power modules passes through the first counnter attack module 6
It is connected with 51 input terminal of 5V power modules, the DC/DC switching frequencies selecting module 3 and the DC/DC power modules 4
Adjustable frequency interface is connected to adjust DC/DC switching frequencies, and the power supply 1 also passes through the second counnter attack module 7
It is connected with the input terminal of the 5V power modules 51.Under such bypass operating mode, power supply output terminal is all the way through DC/DC electricity
4 output voltage of source module is connected to the first counnter attack module 6, and another way is that power supply 1 is directly connected to the second counnter attack module 7, finally,
Counnter attack module 6 and 7 output-parallel of counnter attack module are connected to the input terminal of 5V power modules 51.Utilize the first counnter attack module 6 and second
The parallel connectivity of counnter attack module 7, can allow the regulator circuit work bypass mode, neither increase additional hardware development into
This, and can ensure the normal output of 5V power supplys.
Two kinds of embodiments of the present invention, on the basis of existing vehicle-mounted power supply circuit construction is not changed, the voltage-stabilizing power supply system 2
It can be powered with independent working mode or bypass operating mode to Vehicle Controller 5V power modules 5, ensure that subsequent 5V power supplys are defeated
Go out normal.
As shown in figure 3, the first counnter attack module 6 and the second counnter attack module 7 are diode, first counnter attack
The anode of module 6 is connected with the output terminal of the DC/DC power modules 4, cathode and the 5V electricity of the first counnter attack module 6
The input terminal connection of source module 51, the anode of the first counnter attack module 7 are connected with the power supply 1, second counnter attack
The cathode of module 7 is connected with the input terminal of the 5V power modules 51.Needing explanation is all, the first counnter attack module 6 and second is anti-
Reverse block 7 is in the present embodiment diode, but for extending to triode, MOSFET (metal oxide semiconductor field-effects
Transistor) counnter attack module is equally may be constructed, the same technique effect is played, they should be included in the protection domain of the application
Within, it is contemplated that it needs as counnter attack module, using active counnter attack, so not only to cause circuit knot using triode and MOSFET
Structure is relative complex, occupies more PCB space, can also increase device cost, so the preferred diode composition of the present embodiment is anti-
Reverse block.
The switching frequency of DC/DC is adjusted in DC/DC switching frequencies selecting module 3, is directly connected to DC/DC power modules 4,
The corresponding switching frequency selection range of DC/DC switching frequencies selecting module 3 is 100kHz~2MHz, preferred DC/DC switches
Frequency is 500kHz.
Further, the DC/DC power modules 4 include DC/DC controls chip, DC/DC topological structures, partial pressure network and benefit
Network is repaid, wherein the break-make of topological structure described in DC/DC control chip controls, the partial pressure network connection topology knot
The output terminal of structure for setting DC/DC electric power output voltages, the potential-divider network be also connected with DC/DC control chips with
In sampling DC/DC electric power output voltages, the resonant earthed system is connected with DC/DC control chips for entire DC/DC electricity
The stability of source module.Wherein preferred DC/DC controls chip has frequency-adjustable section interface, and frequency-adjustable section interface is used
In the control chip of connection DC/DC switching frequencies selecting module 3.Wherein Boost topological structures can be selected in DC/DC topological structures,
SEPIC topological structures or Buck-Boost topological structures, the present embodiment are preferably Boost topological structures.
The partial pressure network is for setting DC/DC electric power output voltages, in addition, the potential-divider network is as DC/DC closed loops
The backfeed loop of control, for sampling DC/DC electric power output voltages, it is contemplated that DC/DC output voltages can generally increase counnter attack electricity
The factors such as road and DC/DC response speeds, DC/DC output voltages should be set as 1.6 times or more of 5V power module output voltages, excellent
Choosing is 1.8 times.
In the present embodiment, the resonant earthed system is used to compensate the phase margin of close loop control circuit and DC/DC is rung
Speed etc. is answered, to ensure DC/DC the operation is stable quick responses, specific preferential network phase nargin is 50 °.
Below by specific embodiment come illustrate the present invention effect, the voltage pattern that power supply as shown in Figure 4 falls,
The parameter that the supply voltage falls is derived from the ISO-16756-2 standards of automobile industry execution, it is that power supply is quick in actual condition
The standard parameter of drop-off voltage, without cell voltage U when fallingB=12V, quick drop-out time tr=1ms, and battery drops to Us
=4.5V, meanwhile, according to the requirement of vehicle-mounted actual work temperature scope, Vehicle Controller 5V electrical source consumption current ranges I=
20mA~1A, DC/DC output voltage are set as 1.8 times of 5V, i.e. 9V outputs；Fig. 5 Vehicle Controller voltage stabilizing power supply electricity of the present invention
Under the conditions of Vehicle Controller minimum load (vehicle-mounted control 5V electrical source consumptions electric current is 20mA), voltage-stabilizing power supply system 2 exports on road
The design sketch of voltage；Fig. 6 Vehicle Controller voltage stabilizing power supplying circuits of the present invention are in Vehicle Controller maximum load (Vehicle Controller 5V
Electrical source consumption electric current is 1A) under the conditions of, the design sketch of 2 output voltage of voltage-stabilizing power supply system；By design sketch, it is known that upper
It states under two kinds of most severe conditions, DC/DC output voltages are far longer than 5V, input and are provided more than abundance for follow-up 5V supply voltages
Amount, can solve the problems, such as that low voltage starting supply voltage voltage quickly falls very well.
In addition, as shown in Figures 2 and 3, it is described vehicle-mounted the present invention also provides a kind of Vehicle Controller voltage stabilizing for electric installation
Controller voltage stabilizing includes Vehicle Controller voltage stabilizing power supplying circuit as described above for electric installation.
In the description of the present invention, it is to be understood that term " first ", " second " are only used for description purpose, and cannot
It is interpreted as indicating or implies relative importance or imply the quantity of the technical characteristic indicated by indicating.Define as a result, " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
It connects or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It is combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the different embodiments described in this specification or example and different embodiments or exemplary feature
It closes and combines.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of Vehicle Controller voltage stabilizing power supplying circuit, including power supply, voltage-stabilizing power supply system and Vehicle Controller 5V power supplys
Module, the power supply are powered by the voltage-stabilizing power supply system to the Vehicle Controller 5V power modules, and feature exists
In the voltage-stabilizing power supply system includes DC/DC power modules and DC/DC switching frequency selecting modules, the DC/DC power modules
Be connected respectively with the power supply and the Vehicle Controller 5V power modules, the DC/DC switching frequencies selecting module with
The DC/DC power modules are adjusted frequency interface and are connected to adjust DC/DC switching frequencies, and power supply input is quickly fallen
During with Vehicle Controller heavy duty, it can ensure that the output of DC/DC power modules meets Vehicle Controller 5V power modules normal work
Voltage request.
2. a kind of Vehicle Controller voltage stabilizing power supplying circuit is prevented including power supply, voltage-stabilizing power supply system, 5V power modules, first
Reverse block and the second counnter attack module, the voltage-stabilizing power supply system include DC/DC power modules and DC/DC switching frequencies selection mould
Block, the DC/DC power modules input terminal are connected with the power supply, described in the DC/DC power module outlets process
First counnter attack module is connected with the 5V power modules input terminal, the DC/DC switching frequencies selecting module and DC/DC electricity
The adjustable frequency interface of source module is connected to adjust DC/DC switching frequencies, and the power supply is also anti-by described second
Reverse block is connected with the input terminal of the 5V power modules, can when supply voltage quickly falls with Vehicle Controller heavy duty
Ensure the 5V power inputs normal working voltage requirement that DC/DC outputs meet.
3. Vehicle Controller voltage stabilizing power supplying circuit as claimed in claim 2, it is characterised in that the first counnter attack module and institute
It is diode to state the second counnter attack module, and the anode of the first counnter attack module and the output terminal of the DC/DC power modules connect
It connects, the cathode of the first counnter attack module is connected with the input terminal of the 5V power modules, the anode of the second counnter attack module
It is connected with the power supply, the cathode of the second counnter attack module is connected with the input terminal of the 5V power modules.
4. the Vehicle Controller voltage stabilizing power supplying circuit as described in claims 1 to 3 is any, it is characterised in that the DC/DC switches
The corresponding switching frequency selection range of frequency-selecting module 3 is 100kHz ~ 2MHz.
5. Vehicle Controller voltage stabilizing power supplying circuit as claimed in claim 4, it is characterised in that the DC/DC switching frequencies selection
The corresponding switching frequency of module is 500kHz.
6. the Vehicle Controller voltage stabilizing power supplying circuit as described in claims 1 to 3 is any, it is characterised in that the DC/DC power supplys
Module includes DC/DC controls chip, DC/DC topological structures, partial pressure network and resonant earthed system, wherein the DC/DC controls chip
The break-make of topological structure is controlled, the partial pressure network connects the output terminal of the topological structure for setting the output of DC/DC power supplys
Voltage, the partial pressure network also are connected to sample DC/DC electric power output voltages, the benefit with DC/DC control chips
Network is repaid to be connected for the stability of entire DC/DC power modules with DC/DC control chips.
7. Vehicle Controller voltage stabilizing power supplying circuit as claimed in claim 6, it is characterised in that the DC/DC controls chip has
Frequency-adjustable section interface, frequency-adjustable section interface connection DC/DC switching frequency selecting modules.
8. Vehicle Controller voltage stabilizing power supplying circuit as claimed in claim 6, it is characterised in that the DC/DC topological structures are
Boost topological structures.
9. the Vehicle Controller voltage stabilizing power supplying circuit as described in claim 2 and 3 is any, it is characterised in that the DC/DC power supplys
The output voltage of module setting is not less than 1.6 times of the 5V power modules output voltage values.
10. a kind of Vehicle Controller voltage stabilizing supplies electric installation, it is characterised in that including the vehicle-mounted control as described in claim 1-9 is any
Device voltage stabilizing power supplying circuit processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510401873.8A CN104953822B (en) | 2015-07-10 | 2015-07-10 | Vehicle Controller voltage stabilizing power supplying circuit and Vehicle Controller voltage stabilizing supply electric installation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401873.8A CN104953822B (en) | 2015-07-10 | 2015-07-10 | Vehicle Controller voltage stabilizing power supplying circuit and Vehicle Controller voltage stabilizing supply electric installation |
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| CN104953822B true CN104953822B (en) | 2018-05-29 |
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| CN111769751A (en) * | 2020-05-15 | 2020-10-13 | 海信（山东）空调有限公司 | Direct current power supply circuit and air conditioner |
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| CN102403891A (en) * | 2010-09-10 | 2012-04-04 | 欧姆龙汽车电子株式会社 | Dc-dc converter |
| CN203104012U (en) * | 2012-12-28 | 2013-07-31 | 昌辉汽车电气系统（安徽）有限公司 | Intelligent switch on/off power supply module for automobile |
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| JP4719567B2 (en) * | 2005-12-21 | 2011-07-06 | 日立オートモティブシステムズ株式会社 | Bidirectional DC-DC converter and control method thereof |
| EP2805408B1 (en) * | 2012-01-20 | 2019-12-11 | NXP USA, Inc. | Dc/dc converter with step-down step-up cascade and method for operating it |
| CN203103993U (en) * | 2012-12-05 | 2013-07-31 | 大连信开数码软件有限公司 | Vehicle power supply management system |
| CN203086228U (en) * | 2012-12-21 | 2013-07-24 | 上海大郡动力控制技术有限公司 | Auxiliary power supply system of power supply management module of electric equipment |
| CN203166892U (en) * | 2013-04-27 | 2013-08-28 | 惠州市德赛西威汽车电子有限公司 | Wireless audio reception apparatus used for vehicle system |
| CN204794687U (en) * | 2015-07-10 | 2015-11-18 | 广西师范大学 | Carbone controller steady voltage supply circuit and carbone controller steady voltage power supply unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403891A (en) * | 2010-09-10 | 2012-04-04 | 欧姆龙汽车电子株式会社 | Dc-dc converter |
| CN203104012U (en) * | 2012-12-28 | 2013-07-31 | 昌辉汽车电气系统（安徽）有限公司 | Intelligent switch on/off power supply module for automobile |
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