CN209104884U - A kind of Vehicular charger - Google Patents
A kind of Vehicular charger Download PDFInfo
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- CN209104884U CN209104884U CN201821718628.5U CN201821718628U CN209104884U CN 209104884 U CN209104884 U CN 209104884U CN 201821718628 U CN201821718628 U CN 201821718628U CN 209104884 U CN209104884 U CN 209104884U
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- circuit
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- dsp chip
- photoelectrical coupler
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Abstract
The utility model belongs to switch power supply type charger device field, and in particular to a kind of Vehicular charger.The beneficial effect of this patent is: the utility model dsp chip is DSP56F8346 chip, the chip is 16 bit digital signal processors based on 56800E series, high reliablity, peripheral hardware is abundant, the flexible two-fold advantage of high speed and microcontroller with DSP, the FlexCAN module of chip, 12 ADC, 6 tunnels may be programmed the On-Chip peripherals such as PWM output and provide indispensable hardware resource for charger, the symmetrical output characteristics of PWM signal generation unit therein, it can phase-shift PWM signal easy to accomplish, and the control of phase shift angle is easier, it is very suitable to the control to phase whole-bridging circuit；The utility model structure is simple, small in size, and work efficiency is high and reliable performance, convenient for being widely used to promote.
Description
Technical field
The utility model belongs to switch power supply type charger device field, and in particular to a kind of Vehicular charger.
Background technique
A kind of attention of the electric car as clean new traffic tool, increasingly by country.Hybrid power electricity vapour
Vehicle has come into people's lives, and pure battery car also starts to occur.Currently, there are mainly two types of modes for electric car charging:
Off-board public electrically-charging equipment includes big charging station, charging pile etc.；Another kind is vehicle-mounted charging device, i.e. Vehicular charger.
Vehicular charger has many advantages, such as small in size, easy to use and flexible, can be realized round-the-clock charging and quick charge, is a kind of energy
Facilitate device for electric car supplement energy.
Charger is substantially a kind of intelligent switch power source being integrated on automobile, it will be appreciated that be articulated to automobile bus
On intelligent node, communicated by the bus of automobile with the battery management system on automobile, the charging of complete battery pair and
Management.User can send order to charger by the man-machine interface that vehicle complete vehicle control system provides or check charger
State.
Authorization Notice No. are as follows: the patent of 206461412 U of CN, electric automobile and vehicle-mounted charger, including sequentially connected function
Rate unit, control and protection location, auxiliary unit, further includes: communication module is connect with auxiliary unit, for single by auxiliary
Member receives Vehicular charger status signal, and connect with battery management system, for receiving the battery status signal of power battery；
Buzzer is connect with communication module, for issuing prompt tone according to battery status signal and charger status signal；Display is single
Member is connect with communication module, for showing battery status signal and charger status signal.The utility model passes through electric car
The signal being arranged in Vehicular charger is shown and sounding device, by display unit, buzzer, to user directly, it is clear and
When feedback battery failures exception and charger charged state.However Vehicular charger is integrated on automobile, and needs are
Automobile supplies big energy, and the reliability that should be minimized its volume and improve efficiency and work, above-mentioned Vehicular charger can not
It meets the requirements, needs to make improvements.
Utility model content
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a kind of Vehicular charger,
Meet the requirement of small size and high efficiency, high reliability simultaneously.
The technical solution that this patent solves above-mentioned technical problem is as follows: a kind of Vehicular charger, including sequentially connected EMI
Filter circuit, current rectifying and wave filtering circuit, ZVS phase whole-bridging circuit and rectifier filter circuit, the EMI filter circuit it is defeated
Enter end connection AC input signal, the output end of the EMI filter circuit is also connected with sample circuit, the output of the sample circuit
End connection dsp chip, the input terminal of the DSP chip are also connected with feed circuit, the output end connection of the dsp chip every
From driving circuit, the output end of the isolated drive circuit connects the input terminal of the ZVS phase whole-bridging circuit, the feedback electricity
The input terminal on road connects the output end of the rectifier filter circuit, and the output end of the rectifier filter circuit is also connected with
There is DC output signal, sequentially connected A/D conversion circuit is equipped with inside the dsp chip, two close cycles PI adjusts circuit and PWM
Signal generation unit, the two close cycles PI are adjusted and are provided with relay protective scheme circuit between circuit and PWM signal generation unit,
The A/D conversion circuit connects the feed circuit.
Further, the isolated drive circuit includes photoelectrical coupler U1, and the pin 2 of the photoelectrical coupler U1 connects
The PWM signal generation unit is connect, the pin 3 of the photoelectrical coupler U1 is grounded after connecting resistance R1, the photoelectrical coupler
The pin 5 of U1 is grounded respectively, connect capacitor C1 after be conductively connected with the pin 8 of the photoelectrical coupler U1, the photoelectric coupling
The pin 6 and pin 7 of device U1 is conductively connected, and is separately connected resistance R4 after the 7 series resistance R3 of pin of the photoelectrical coupler U1
One end and the ZVS phase whole-bridging circuit, the both ends shunt inductance C2 of the resistance R3, the pin of the photoelectrical coupler U1
8 are separately connected one end of power supply VCC and resistance R2, the other end of the resistance R2 be separately connected zener diode Z1 cathode and
The other end of the other end of the resistance R4, the resistance R4 connects the ZVS phase whole-bridging circuit, the zener diode
The plus earth of Z1, the both ends parallel resistance C3 of the zener diode Z1.
Further, the photoelectrical coupler U1 is TLP250 photoelectrical coupler.
Further, the sample circuit includes voltage sampling circuit and current sampling circuit, respectively by output voltage and
Current signal is adjusted to the signal of suitable dsp chip ADC sampling, and the voltage sampling circuit is using optocoupler HCNR201 to letter
Number carry out Phototube Coupling, the current sampling circuit use Hall sensor CHF-300E.
Further, the output end of the dsp chip is also connected with CAN transceiver, the CAN transceiver and the DSP
Chip is connected with each other.
Further, the dsp chip is DSP56F8346 chip.
The beneficial effect of this patent is:
1, the utility model dsp chip is DSP56F8346 chip, which is 16 bit digitals based on 56800E series
Signal processor, high reliablity, peripheral hardware is abundant, high speed and the flexible two-fold advantage of microcontroller with DSP, chip
FlexCAN module, 12 ADC, 6 tunnels may be programmed the On-Chip peripherals such as PWM output and provide indispensable hardware resource for charger,
The symmetrical output characteristics of PWM signal generation unit therein, can phase-shift PWM signal easy to accomplish, and the control to phase shift angle
It is easier, is very suitable to the control to phase whole-bridging circuit；
2, the utility model structure is simple, small in size, and work efficiency is high and reliable performance, convenient for being widely used to promote.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural block diagram of Vehicular charger described in the utility model specific embodiment；
Fig. 2 is the schematic internal view of dsp chip in Fig. 1；
Fig. 3 is the circuit connection diagram of isolated drive circuit in Fig. 1.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and it is originally practical to cannot be used as a limitation limitation
Novel protection scope.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this reality
The ordinary meaning understood with novel one of ordinary skill in the art.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment
As shown in Figure 1-3, a kind of Vehicular charger provided by the utility model, including sequentially connected EMI filtering
Circuit, current rectifying and wave filtering circuit, ZVS phase whole-bridging circuit and rectifier filter circuit, the input terminal of the EMI filter circuit
AC input signal is connected, the output end of the EMI filter circuit is also connected with sample circuit, and the output end of the sample circuit connects
Dsp chip is connect, the input terminal of the dsp chip is also connected with feed circuit, and the output end of the dsp chip connects isolation drive
Circuit, the output end of the isolated drive circuit connect the input terminal of the ZVS phase whole-bridging circuit, the feed circuit it is defeated
Enter the output end that end connects the rectifier filter circuit, it is defeated that the output end of the rectifier filter circuit is also connected with DC
Signal out, the dsp chip inside is equipped with sequentially connected A/D conversion circuit, two close cycles PI adjusts circuit and pwm signal produces
Raw unit, the two close cycles PI are adjusted and are provided with relay protective scheme circuit, the A/ between circuit and PWM signal generation unit
D conversion circuit connects the feed circuit, and the ADC converting unit of the dsp chip connects the sample circuit.
Further, the isolated drive circuit includes photoelectrical coupler U1, and the pin 2 of the photoelectrical coupler U1 connects
The PWM signal generation unit is connect, the pin 3 of the photoelectrical coupler U1 is grounded after connecting resistance R1, the photoelectrical coupler
The pin 5 of U1 is grounded respectively, connect capacitor C1 after be conductively connected with the pin 8 of the photoelectrical coupler U1, the photoelectric coupling
The pin 6 and pin 7 of device U1 is conductively connected, and is separately connected resistance R4 after the 7 series resistance R3 of pin of the photoelectrical coupler U1
One end and the ZVS phase whole-bridging circuit, the both ends shunt inductance C2 of the resistance R3, the pin of the photoelectrical coupler U1
8 are separately connected one end of power supply VCC and resistance R2, the other end of the resistance R2 be separately connected zener diode Z1 cathode and
The other end of the other end of the resistance R4, the resistance R4 connects the ZVS phase whole-bridging circuit, the zener diode
The plus earth of Z1, the both ends parallel resistance C3 of the zener diode Z1.
Further, the photoelectrical coupler U1 is TLP250 photoelectrical coupler, and maximum can provide the driving electricity of 1.5 A
Stream, MOSFET can be directly driven by being not required to any additional amplifying circuit, and circuit structure is simple, while realize input, output every
From.
Further, the sample circuit includes voltage sampling circuit and current sampling circuit, respectively by output voltage and
Current signal is adjusted to the signal of suitable dsp chip ADC sampling, and the voltage sampling circuit is using optocoupler HCNR201 to letter
Number carry out Phototube Coupling, the current sampling circuit use Hall sensor CHF-300E.
Further, the output end of the dsp chip is also connected with CAN transceiver, the CAN transceiver and the DSP
Chip is connected with each other, and the FlexCAN module of the dsp chip is correspondingly connected with the CAN transceiver.
Further, the dsp chip is DSP56F8346 chip, which has unique asymmetrical PWM output work
Can, it can realize that phase-shift PWM, PWM module have the following characteristics that (1) module is exported with 6 road PWM, share one using the function
A PWM counter is changed by modification PWM modulus value register (PWM counter modulus) and counts modulus value；(2) every road PWM
Output has a comparand register (PWM Value Register), when count value is equal with comparand register, output reversion.
Change the duty ratio of PWM by setting PWM comparand register；(3) output waveform can be by setting PWM control register configuration
Center alignment or edge alignment.When configuring output center alignment, counter carries out plus/minus counting, and counter is since 0 plus counts
Number reaches after counting modulus value, automatically begins to subtract counting；When being configured to edge alignment waveform output, counter is carried out plus is counted, and is arrived
It is zeroed after counting modulus value；(4) 6 road PWM can be exported independently, also may be set to 3 pairs of complementary outputs, and 6 road PWM are divided into fixed 3 groups
Complementary pair, upper and lower two-way anti-phase output.Under complementary output mode, module is that each pair of output addition of two-way up and down is programmable automatically
Dead zone.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (6)
1. a kind of Vehicular charger, it is characterised in that: moved including sequentially connected EMI filter circuit, current rectifying and wave filtering circuit, ZVS
The input terminal of phase full-bridge circuit and rectifier filter circuit, the EMI filter circuit connects AC input signal, the EMI
The output end of filter circuit is also connected with sample circuit, and the output end of the sample circuit connects dsp chip, the dsp chip
Input terminal be also connected with feed circuit, the output end of the dsp chip connects isolated drive circuit, the isolated drive circuit
Output end connect the input terminal of the ZVS phase whole-bridging circuit, the input terminal of the feed circuit connects the high-frequency rectification
The output end of filter circuit, the output end of the rectifier filter circuit are also connected with DC output signal, in the dsp chip
Portion is equipped with sequentially connected A/D conversion circuit, two close cycles PI adjusts circuit and PWM signal generation unit, the two close cycles PI
It adjusts and is provided with relay protective scheme circuit between circuit and PWM signal generation unit, the A/D conversion circuit connection is described anti-
Current feed circuit.
2. a kind of Vehicular charger according to claim 1, it is characterised in that: the isolated drive circuit includes photoelectricity coupling
Clutch U1, the pin 2 of the photoelectrical coupler U1 connect the PWM signal generation unit, the pin 3 of the photoelectrical coupler U1
Be grounded after connection resistance R1, the pin 5 of the photoelectrical coupler U1 is grounded respectively, connect capacitor C1 after with the photoelectrical coupler
The pin 8 of U1 is conductively connected, and the pin 6 and pin 7 of the photoelectrical coupler U1 is conductively connected, and the photoelectrical coupler U1's draws
One end and the ZVS phase whole-bridging circuit, the both ends of the resistance R3 that resistance R4 is separately connected after 7 series resistance R3 of foot are in parallel
The pin 8 of inductance C2, the photoelectrical coupler U1 are separately connected one end of power supply VCC and resistance R2, and the resistance R2's is another
End be separately connected zener diode Z1 cathode and the resistance R4 the other end, the resistance R4 the other end connection described in
ZVS phase whole-bridging circuit, the plus earth of the zener diode Z1, the both ends parallel resistance C3 of the zener diode Z1.
3. a kind of Vehicular charger according to claim 2, it is characterised in that: the photoelectrical coupler U1 is TLP250 light
Electric coupler.
4. according to a kind of described in any item Vehicular chargers of Claims 2 or 3, it is characterised in that: the sample circuit includes
Output voltage and current signal are adjusted to suitable dsp chip ADC respectively and sampled by voltage sampling circuit and current sampling circuit
Signal, the voltage sampling circuit carries out Phototube Coupling to signal using optocoupler HCNR201, and the current sampling circuit uses
Hall sensor CHF-300E.
5. a kind of Vehicular charger according to claim 4, it is characterised in that: the output end of the dsp chip is also connected with
There is CAN transceiver, the CAN transceiver and the dsp chip are connected with each other.
6. a kind of Vehicular charger according to claim 5, it is characterised in that: the dsp chip is DSP56F8346 core
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821718628.5U CN209104884U (en) | 2018-10-23 | 2018-10-23 | A kind of Vehicular charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821718628.5U CN209104884U (en) | 2018-10-23 | 2018-10-23 | A kind of Vehicular charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209104884U true CN209104884U (en) | 2019-07-12 |
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ID=67156152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821718628.5U Active CN209104884U (en) | 2018-10-23 | 2018-10-23 | A kind of Vehicular charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209104884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217444A (en) * | 2018-10-23 | 2019-01-15 | 安布雷拉扬州新能源科技有限公司 | A kind of Vehicular charger |
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2018
- 2018-10-23 CN CN201821718628.5U patent/CN209104884U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217444A (en) * | 2018-10-23 | 2019-01-15 | 安布雷拉扬州新能源科技有限公司 | A kind of Vehicular charger |
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