CN208271027U - Hardware platform is debugged suitable for the small signal of digital power - Google Patents
Hardware platform is debugged suitable for the small signal of digital power Download PDFInfo
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- CN208271027U CN208271027U CN201821062042.8U CN201821062042U CN208271027U CN 208271027 U CN208271027 U CN 208271027U CN 201821062042 U CN201821062042 U CN 201821062042U CN 208271027 U CN208271027 U CN 208271027U
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Abstract
The utility model discloses be suitable for the small signal of digital power to debug hardware platform, applied in the small signal debugging system of digital power, the small signal debugging system of the digital power includes host computer, CAN/USB translation interface and the small signal debugging hardware platform of digital power, the small signal debugging hardware platform of digital power has multiple interfaces by CAN/USB translation interface and upper mechatronics, the small signal debugging hardware platform outside of digital power.The digital power small signal described in the utility model that is suitable for debugs hardware platform, it can be with front stage joint debugging, also it can be used alone, it is at low cost, this platform uses the form of connecting-disconnecting interface, as long as this platform can be used to carry out small signal debugging using current interface definition when actual product designs, the completion of a series of activities such as hardware design, debugging without waiting product to be developed, greatly improve working efficiency, shorten the development cycle, the debugging efforts of small signal can be completed in cooperation CAN/USB communication board and host computer, have convenience.
Description
Technical field
The utility model belongs to electricity field, in particular to is suitable for the small signal of digital power and debugs hardware platform.
Background technique
With the continuous development of digital technology, digital power product is more more and more universal with its unique advantage, thereupon
Be exactly that the small signal debugging efforts of digital power are more and more, software design and debugging in digital power R & D of complex,
Development cycle is long, and has very strong dependence to hardware system, but hardware development also needs certain period, from side
Case was determined to schematic diagram drafting, the drafting of pcb board figure and PCB plate-making, welding, debugging, the time of possible time-consuming some months, if soft
Part engineer will be unable to carry out software logic verifying, will certainly extend the development cycle, bring one in use without hardware platform
Fixed adverse effect, for this purpose, it is proposed that being suitable for the small signal of digital power debugs hardware platform.
Utility model content
It, can be effective the main purpose of the utility model is to provide the small signal debugging hardware platform of digital power is suitable for
Solve the problems in background technique.
To achieve the above object, the technical solution that the utility model is taken are as follows:
Hardware platform is debugged suitable for the small signal of digital power, is applied in the small signal debugging system of digital power, the number
The small signal debugging system of word power supply includes host computer, CAN/USB translation interface and the small signal debugging hardware platform of digital power, institute
It states the small signal debugging hardware platform of digital power and passes through CAN/USB translation interface and upper mechatronics；The digital power is small
Signal, which is debugged, has multiple interfaces outside hardware platform, one of interface is to be connect with CAN/USB translation interface by CAN
CAN communication output interface, the two sides of the CAN communication output interface are fixed with dc power interface and state display lamp, and described
The lower section of CAN communication output interface has each small signal testing terminal, which is fixedly installed with respectively
PFC prefix control unit interface and DC/DC control unit interface, and exported in connecting PFC driving outside the PFC prefix control unit interface
Interface drives output interface in connecting DC/DC outside the DC/DC control unit interface；The small signal of digital power debugs hardware
Platform interior has CAN communication unit, prime PFC unit, rear class DC/DC unit, front stage LIN communication unit, temperature sampling
Unit, L/N input circuit and interface, PFC output voltage unit, rear class output voltage unit, rear class output current unit and survey
Terminal is tried, the prime PFC unit is connect by front stage LIN communication unit with the rear class DC/DC unit communication, the temperature
It spends sampling unit to sample in the prime PFC unit and the enterprising trip temperature of the rear class DC/DC unit respectively, the CAN communication
Two-way between unit and rear class DC/DC unit to be electrically connected, the temperature sampling unit, L/N input circuit and interface and PFC are exported
Voltage cell is connected on the prime PFC unit, the rear class output voltage unit, rear class output current unit and survey
Examination terminal is respectively electrically connected on rear class DC/DC unit.
Preferably, pass through LIN telecommunication circuit between the PFC prefix control unit interface and the DC/DC control unit interface
Connection.
Preferably, the dc power interface connection 12V level turns 5V and turns 3.3V power circuit.
Preferably, be provided on the digital power small signal debugging hardware platform outer surface PFC grade with DC/DC grades, it is preceding
Communications status indicator light between rear class.
Preferably, the PFC unit is mounted on platform in the form of card i/f, and interface is defined as 12V input, 3.3V
Power interface, front stage LIN communication interface, L/N voltage sampling circuit and interface, PFC voltage sampling circuit and interface, PFC temperature
Spend sample circuit and interface, the output of four road PWMA, PWMB, PWMC, PWMD driving signals.
Preferably, the rear class DC/DC is led to by 12V power supply interface, 3.3V power interface, CAN communication interface, LIN
Believe interface, output voltage sampling circuit and interface, output current sample and interface, temperature sampling circuit and interface, PWMA ~ PWMF
Totally 6 tunnels driving output composition.
Compared with prior art, the utility model has the following beneficial effects: the small signal debugging of digital power should be suitable for
Hardware platform, this platform it is applied widely, cover the required sampling of OBC currently popular and DC/DC topology, defeated substantially
Out, the demands such as communication, it can front stage joint debugging also can be used alone, at low cost；This platform uses the shape of connecting-disconnecting interface
Formula, as long as this platform can be used to carry out small signal debugging using current interface definition when actual product designs, without waiting
The completion of a series of activities such as hardware design, the debugging of product to be developed greatly improves working efficiency, shortens exploitation week
Phase cooperates CAN/USB communication board and host computer that the debugging efforts of small signal can be completed, and has great convenience.
Detailed description of the invention
Fig. 1 is that the utility model is suitable for the small signal debugging hardware platform system of digital power with figure；
Fig. 2 is that the utility model is suitable for the small signal debugging hardware platform schematic block circuit diagram of digital power.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
As shown in Figs. 1-2, it is suitable for the small signal of digital power and debugs hardware platform, is applied to the small signal debugging of digital power
In system, the small signal debugging system of the digital power includes that host computer, CAN/USB translation interface and the small signal of digital power are debugged
Hardware platform, the small signal debugging hardware platform of digital power pass through CAN/USB translation interface and upper mechatronics；
There are multiple interfaces, one of interface is and CAN/ outside the small signal debugging hardware platform of the digital power
For USB translation interface by the CAN communication output interface of CAN connection, the two sides of the CAN communication output interface are fixed with DC power supply
Interface and state display lamp, and the lower section of the CAN communication output interface has each small signal testing terminal, the small signal testing
Terminal two sides are fixedly installed with PFC prefix control unit interface and DC/DC control unit interface respectively, and control in the PFC prefix
PFC is connected outside device interface and drives output interface, drives output interface in connecting DC/DC outside the DC/DC control unit interface；It is described
There is CAN communication unit, prime PFC unit, rear class DC/DC unit, front and back inside the small signal debugging hardware platform of digital power
Grade LIN communication unit, temperature sampling unit, L/N input circuit and interface, PFC output voltage unit, rear class output voltage list
Member, rear class output current unit and calibrating terminal, the prime PFC unit pass through front stage LIN communication unit and the rear class
The connection of DC/DC unit communication, the temperature sampling unit is respectively on the prime PFC unit and the rear class DC/DC unit
Carry out temperature sampling, two-way between the CAN communication unit and rear class DC/DC unit to be electrically connected, the temperature sampling unit, L/
N input circuit and interface and PFC output voltage unit are connected on the prime PFC unit, the rear class output voltage
Unit, rear class output current unit and calibrating terminal are respectively electrically connected on rear class DC/DC unit.
It is connected between PFC prefix control unit interface and the DC/DC control unit interface by LIN telecommunication circuit；Direct current
Source interface connection 12V level turns 5V and turns 3.3V power circuit；Digital power small signal debugging is arranged on hardware platform outer surface
There is communications status indicator light between PFC grades and DC/DC grades, front stage；PFC unit is mounted on platform in the form of card i/f,
Interface is defined as 12V input, 3.3V power interface, front stage LIN communication interface, L/N voltage sampling circuit and interface, PFC electricity
Press sample circuit and interface, PFC temperature sampling circuit and interface, the output of four road PWMA, PWMB, PWMC, PWMD driving signals；Afterwards
Grade DC/DC samples electricity by 12V power supply interface, 3.3V power interface, CAN communication interface, LIN communication interface, output voltage
Simultaneously the driving of totally 6 tunnels exports composition by interface, output current sample and interface, temperature sampling circuit and interface, PWMA ~ PWMF on road.
It should be noted that the utility model is that hardware platform is debugged suitable for the small signal of digital power, as shown in Figure 1
The small signal debugging system of digital power, mainly consists of three parts, and respectively host computer, CAN/USB translation interface and is suitable for
The small signal of digital power debugs platform.
Turn 5V The platform provides DC supply input interface, 12V level and turns 3.3V power circuit, the input of PFC alternating current
Interface and detection circuit, the CAN communication circuit being connected with DC/DC control unit interface and CAN communication interface, CAN communication state
Indicator light, PFC and DC/DC status indicator lamp, LIN telecommunication circuit, each small signal testing terminal between PFC and DC/DC etc..
Access 12V DC power supply is first had to when use.PFC or DC/DC control can be independently accessed according to specific debugging demand
Device only needs the interface of controller consistent with current debugging each terminal definition of platform.Because controller generallys use contact pin interface
Form, therefore, this platform using pedestal interface form, if controller pin definitions with debugging platform it is consistent, can
Directly to plug, it is not necessarily to external converting interface.If pin definitions are inconsistent, it can be transferred by outside, be fixed in the form of contact pin
In this debugging platform, tested.
For the topology of the front and back stages such as charger, two-stage joint debugging can be carried out, uses auto communication mark between two-stage
It is quasi- --- LIN communication mode.New energy power supply product usually requires CAN communication and is communicated with vehicle or BMS, therefore, this tune
Platform configuration CAN communication module is tried, is connect with rear class DC/DC controller, complies fully with the actual use of the products such as charger
Environment.It is communicated by external USB/CAN translation interface and host computer.
PFC input voltage measurement is to select divider resistance appropriate by the way that alternating current L, N line is accessed this platform, be sent into and survey
Platform PFC alternating voltage Sampling Interface is tried, is sampled for controller.PFC output voltage, PFC output electric current, PFC temperature are adopted
The defeated entry/exit voltage of sample, DC/DC, DC/DC output electric current, DC/DC temperature sampling are all with 3.3V power supply string fixed resistance and adjustable
Resistance is constituted, and is changed defeated to simulate corresponding input, output voltage/electric current sampling by adjusting the resistance value of potentiometer
Enter, output state, carries out the protection such as small Signal Regulation and overvoltage/undervoltage, overcurrent, excess temperature.
In addition to power supply indicator, this platform is additionally provided with communications status indicator light between PFC grades and DC/DC grades, front stage, leads to
The control for crossing controller exports different flashing states, to indicate the working condition of controller.
For the state convenient for detecting each small signal when debugging using oscillograph, test is equipped on each key point
Terminal.
This platform provides comprehensive debugging function with extremely low cost, in multiple power source and new energy power supply product
In debugging, there is extensive versatility.Prime PFC has the driving output of four tunnels, is suitable for most level Four topology in parallel；Rear class tool
There is the output of 6 tunnels, the application of half-bridge and the topology such as full-bridge LLC and synchronous rectification, full-bridge phase shifting can be met；Number as shown in Figure 2
The small signal of power supply debugs hardware platform, this platform is by 12V power input interface, CAN communication unit, prime PFC unit, rear class
DC/DC unit, front stage LIN communication unit, temperature sampling unit, L/N input circuit and interface, PFC output voltage unit, after
Grade output voltage unit, rear class output current unit, PFC drive output interface, rear class output driving interface communication state instruction
The composition such as lamp, front stage status indicator lamp, calibrating terminal.
For 12V DC power supply outside needing when use, 12V built in platform turns 5V power adapter, provides for CAN communication required
Power supply；Meanwhile 5V level conversion is 3.3V, provides necessary level for digital signal.
Vehicle power supply product usually will carry out necessary communication with vehicle, and therefore, CAN communication unit is essential.?
Inside, CAN communication unit receive rear class control, and the communication of complete machine and vehicle is realized by the unit.
PFC unit is mounted on platform in the form of card i/f, and interface is defined as 12V input, 3.3V power interface, preceding
Rear class LIN communication interface, L/N voltage sampling circuit and interface, PFC voltage sampling circuit and interface, PFC temperature sampling circuit are simultaneously
Interface, the output of four road PWMA, PWMB, PWMC, PWMD driving signals.Wherein 12V is provided necessary for PFC grades of controller to be debugged
Power supply；3.3V provides necessary power supply for the MCU and peripheral hardware of external pfc controller；Controller LIN communication interface is through isolation module
It is communicated with rear class, transmits the information such as required state, failure, data, controlled for internal coordination；L/N voltage sampling circuit
It is that the ac commercial power voltage of input is directly supplied to interface after necessary partial pressure, so that external pfc controller is sampled,
It monitors in real time and realizes that overvoltage/undervoltage is protected；PFC voltage sampling circuit passes through 3.3V power supply series connection fixed resistance and adjustable resistance point
Pressure measures the voltage of adjustable resistance to simulate practical PFC output voltage, provides necessary signal to be sampled to controller, realize
Voltage monitoring and overvoltage/undervoltage protection；PFC temperature sampling circuit is made of 3.3V power supply string fixed resistance and adjustable resistance, passes through tune
Voltage analog actual temperature sampling on whole adjustable resistance, may be implemented real time temperature monitoring, carries out prime overheat protector；Four tunnels
PWMA ~ PWMD driving output substantially meets the demand of common PFC topology or crisscross parallel.
Rear class DC/DC is by 12V power supply interface, 3.3V power interface, CAN communication interface, LIN communication interface, output
Simultaneously the driving of totally 6 tunnels is defeated by interface, output current sample and interface, temperature sampling circuit and interface, PWM1 ~ PWM6 for voltage sampling circuit
It forms out.Wherein 12V power supply provides necessary power supply for external rear class controller；3.3V is the MCU of external pfc controller and outer
If providing necessary power supply；CAN communication interface realizes that power supply is communicated with host computer, imitates vehicle/BMS controller with host computer；
LIN communication interface is the bridge of front stage communication, the information exchanges such as state, failure, data necessary to front stage is realized, for inside
Coordinated control；Output voltage sampling and output current sample are respectively by 3.3V power supply string fixed resistance and adjustable resistance circuit group
At by the voltage realization on sampling adjustable resistance to the simulation of output voltage, electric current and overvoltage/undervoltage, the protection for crossing undercurrent.Afterwards
Grade temperature sampling circuit is made of 3.3V power supply string fixed resistance and adjustable resistance, by adjusting the voltage analog on adjustable resistance
Actual temperature sampling, may be implemented real time temperature monitoring, carry out rear class overheat protector；Driving output in totally 6 tunnels is basic by PWMA ~ PWMF
Meet the conventional demand of half-bridge and full-bridge LLC, full-bridge phase shifting containing synchronous rectification.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. being suitable for the small signal of digital power debugs hardware platform, it is applied in the small signal debugging system of digital power, the number
The small signal debugging system of power supply includes that host computer, CAN/USB translation interface and the small signal of digital power debug hardware platform, described
The small signal debugging hardware platform of digital power passes through CAN/USB translation interface and upper mechatronics, it is characterised in that:
There are multiple interfaces outside the small signal debugging hardware platform of digital power, one of interface is to turn with CAN/USB
For alias by the CAN communication output interface of CAN connection, the two sides of the CAN communication output interface are fixed with dc power interface
With state display lamp, and the lower section of the CAN communication output interface have each small signal testing terminal, the small signal testing terminal
Two sides are fixedly installed with PFC prefix control unit interface and DC/DC control unit interface respectively, and connect in the PFC prefix controller
Connection PFC drives output interface outside mouthful, connects DC/DC driving output interface outside in the DC/DC control unit interface；The number
There is CAN communication unit, prime PFC unit, rear class DC/DC unit, front stage LIN inside the small signal debugging hardware platform of power supply
Communication unit, temperature sampling unit, L/N input circuit and interface, PFC output voltage unit, rear class output voltage unit, rear class
Current unit and calibrating terminal are exported, the prime PFC unit is mono- by front stage LIN communication unit and the rear class DC/DC
Member communication connection, the temperature sampling unit is respectively in the prime PFC unit and the enterprising trip temperature of rear class DC/DC unit
Sampling, two-way between the CAN communication unit and rear class DC/DC unit to be electrically connected, the temperature sampling unit, L/N input electricity
Road and interface and PFC output voltage unit are connected on the prime PFC unit, the rear class output voltage unit, after
Grade output current unit and calibrating terminal are respectively electrically connected on rear class DC/DC unit.
2. the digital power small signal according to claim 1 that is suitable for debugs hardware platform, it is characterised in that: the PFC
It is connected between prefix control unit interface and the DC/DC control unit interface by LIN telecommunication circuit.
3. the digital power small signal according to claim 1 that is suitable for debugs hardware platform, it is characterised in that: the direct current
Power interface connection 12V level turns 5V and turns 3.3V power circuit.
4. the digital power small signal according to claim 1 that is suitable for debugs hardware platform, it is characterised in that: the number
Power supply small signal debugging is provided with communications status indicator light between PFC grades and DC/DC grades, front stage on hardware platform outer surface.
5. the digital power small signal according to claim 1 that is suitable for debugs hardware platform, it is characterised in that: the PFC
Unit is mounted on platform in the form of card i/f, and interface is defined as 12V input, 3.3V power interface, front stage LIN communication
Interface, L/N voltage sampling circuit and interface, PFC voltage sampling circuit and interface, PFC temperature sampling circuit and interface, four tunnels
The output of PWMA, PWMB, PWMC, PWMD driving signal.
6. the digital power small signal according to claim 1 that is suitable for debugs hardware platform, it is characterised in that: the rear class
DC/DC is by 12V power supply interface, 3.3V power interface, CAN communication interface, LIN communication interface, output voltage sampling circuit
And the driving of totally 6 tunnels exports composition by interface, output current sample and interface, temperature sampling circuit and interface, PWMA ~ PWMF.
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| CN201821062042.8U CN208271027U (en) | 2018-07-05 | 2018-07-05 | Hardware platform is debugged suitable for the small signal of digital power |
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| CN201821062042.8U CN208271027U (en) | 2018-07-05 | 2018-07-05 | Hardware platform is debugged suitable for the small signal of digital power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023082108A1 (en) * | 2021-11-10 | 2023-05-19 | 宁德时代新能源科技股份有限公司 | Electrical system and electrical device |
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2018
- 2018-07-05 CN CN201821062042.8U patent/CN208271027U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023082108A1 (en) * | 2021-11-10 | 2023-05-19 | 宁德时代新能源科技股份有限公司 | Electrical system and electrical device |
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