CN109979291A - A kind of the General experimental device and experimental method of power electronic circuit - Google Patents
A kind of the General experimental device and experimental method of power electronic circuit Download PDFInfo
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- CN109979291A CN109979291A CN201910213505.9A CN201910213505A CN109979291A CN 109979291 A CN109979291 A CN 109979291A CN 201910213505 A CN201910213505 A CN 201910213505A CN 109979291 A CN109979291 A CN 109979291A
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Abstract
A kind of General experimental device of power electronic circuit disclosed by the invention, including open-cycle controller, human-computer interaction module and drive module are provided in open-cycle controller, human-computer interaction module connects drive module, there are four export connector for drive module setting, the bnc interface of each output connector connection half-bridge motherboard and the bnc interface of H bridge motherboard, half-bridge daughter board is distinguished on grafting half-bridge motherboard and H bridge motherboard, connects suitable capacitor, inductance and constructs driving half-bridge circuit topology, full-bridge circuit topology and DAB circuit topology respectively；The invention also discloses the experimental methods of the experimental provision for constructing half-bridge circuit topology, full-bridge circuit topology and DAB circuit topology, device disclosed by the invention solves available circuit experiment and usually requires to build circuit repeatedly, the problem of causing component to expend greatly and take time and effort, the utilization rate of motherboard is effectively improved, package unit is easy to use.
Description
Technical field
The invention belongs to power electronics fields, and in particular to a kind of General experimental device of power electronic circuit, also
It is related to the experimental method of the experimental provision.
Background technique
Power electronic technique using more and more extensive, can be used for such as utility power quality control, new energy power generation grid-connection,
Special power supply, wireless charging etc. are related to the field of transformation of electrical energy and propagation.The either research and development of theoretical research or product, all need
It to be carried out based on actual power electronic circuit.
The build process of power electronic circuit is comparatively laborious, and circuit is built component therein after the completion and is difficult to again
It utilizes.Teaching for field of power electronics, the needs such as research and development of power electronic product quickly, repeatedly build the field of different circuits
It closes, the build process of debug circuit can consume a large amount of human cost, time cost and fund cost.Simultaneously as operator
The problem of wiring error caused by the factors such as member's experience deficiency may cause personnel's electric shock, experiment equipment is burnt.
Summary of the invention
The object of the present invention is to provide a kind of General experimental devices of power electronic circuit, and it is logical to solve available circuit experiment
The problem of often needing to build circuit repeatedly, component caused to expend greatly and take time and effort.
It is a further object of the present invention to provide a kind of experimental methods of the General experimental device of power electronic circuit.
The technical scheme adopted by the invention is that a kind of General experimental device of power electronic circuit, for constructing half-bridge
Circuit topology, full-bridge circuit topology and DAB circuit topology, including open-cycle controller are provided with human-computer interaction in open-cycle controller
Module and drive module, human-computer interaction module include half-bridge circuit button, the full-bridge circuit that open-cycle controller operating surface is arranged in
Button and DAB circuit button, human-computer interaction module connect drive module, and drive module setting is there are four connector is exported, each
Output connector is respectively used to driving half-bridge circuit topology, full-bridge circuit topology and DAB circuit topology；Half-bridge circuit topology is by one
Block half-bridge daughter board is plugged on one piece of half-bridge motherboard, connection capacitor composition；Full-bridge circuit topology is plugged on H by two pieces of half-bridge daughter boards
On bridge motherboard, connection capacitor, inductance composition；DAB circuit topology is plugged on two pieces of H bridge motherboards by four pieces of half-bridge daughter boards, connection
Capacitor, inductance composition；The BNC interface of half-bridge motherboard is connected with the output that the bnc interface of H bridge motherboard is directly connected to drive module
Mouthful；Every piece of half-bridge daughter board includes the first gallium nitride metal-oxide-semiconductor, the second gallium nitride metal-oxide-semiconductor and drive control circuit.
Other features of the invention also reside in,
Control and power supply interface and power interface are provided on every piece of half-bridge daughter board, control and power supply interface part include
PWM_L pin, PWM_H pin, ENABLE pin ,+5V pin, GND pin totally 6 pins.
Each half-bridge motherboard is powered using 12V DC, and port CON-II, port CON-III, end are provided on half-bridge motherboard
Mouth CON-IV, port CON-V, port CON-VI, port CON-VII and port VSW, pass through between port VSW and port CON-V
Inductance or capacitor needed for the connection of banana joint terminal, connect DC power supply, port between port CON-II and port CON-VI
Pass through the connection load of banana joint terminal between CON-IV and port CON-VII；PWM control and power supply are additionally provided on half-bridge motherboard
Interface section, PWM control and power supply interface part include the bnc interface of a pwm signal for receiving open-cycle controller, one
A external PWM signal input interface, the first gallium nitride metal-oxide-semiconductor pwm signal wire jumper select terminal, the second gallium nitride metal-oxide-semiconductor PWM
Signal wire jumper selects terminal；There are control and power supply interface and the power interface pin of corresponding every piece of half-bridge daughter board on half-bridge motherboard
Pin jack.
Every piece of H-type motherboard is powered using 12V DC, is provided with port CON-I, port CON-II, port on H-type motherboard
CON-III, port CON-IV and transformer, connect DC inductance, electricity as needed between port CON-I and port CON-II
Hold and the primary side of transformer, the secondary side of transformer connect load, connect direct current between port CON-III and port CON-IV
Source；PWM control and power supply interface part are additionally provided on H bridge motherboard, including the pwm signal for receiving open-cycle controller
Two BNC interfaces, respectively A phase pwm signal input interface and B phase pwm signal input interface, an external PWM signal input
Interface, for H bridge there are two bridge arm, two bridge arms respectively have one group of pwm signal wire jumper selection terminal, A phase the first gallium nitride metal-oxide-semiconductor PWM
Signal wire jumper selects terminal, and A phase the second gallium nitride metal-oxide-semiconductor pwm signal wire jumper selects terminal, B phase the first gallium nitride metal-oxide-semiconductor PWM
Signal wire jumper selects terminal, and B phase the second gallium nitride metal-oxide-semiconductor pwm signal wire jumper selects terminal；There are two groups of correspondences every on H bridge motherboard
The pin jack of block half-bridge 9 pins of daughter board.
Human-computer interaction module further includes the parameter setting interface of corresponding half-bridge circuit, full-bridge circuit and DAB circuit, and parameter is set
The setting that interface includes frequency, duty ratio is set, further includes " starting " button, " stopping " button and the Back button.
Another technical solution of the invention is that a kind of experimental method of the General experimental device of power electronic circuit is based on
A kind of General experimental device of power electronic circuit, when carrying out the experiment of half-bridge circuit topology, experimental method is as follows:
Step 1, half-bridge circuit button is selected in the operation interface of open-cycle controller, into parameter setting interface, according to need
The frequency and duty ratio of gate pole control signal are set；
Step 2, the bnc interface of a half-bridge motherboard is connected to an output connector of open-cycle controller drive module
On, half-bridge daughter board is plugged on half-bridge motherboard, passes through banana joint terminal connection electricity between port CON-V and port CON-VII
Hold, conducting wire connects between port CON-IV and port CON-V, one end of the first gallium nitride MOS of half-bridge daughter board and the second nitridation
One end of shunt capacitance between one end of gallium metal-oxide-semiconductor, the first gallium nitride metal-oxide-semiconductor is connected on the port CON-II of half-bridge motherboard,
The other end of first gallium nitride metal-oxide-semiconductor connects the other end of the second gallium nitride metal-oxide-semiconductor and is connected to the port of half-bridge motherboard simultaneously
On VSW, one end of the second gallium nitride metal-oxide-semiconductor is connected on the port CON-VI of half-bridge motherboard；The grid of first gallium nitride metal-oxide-semiconductor
Pole is connected with the grid of the second gallium nitride metal-oxide-semiconductor with grid drive chip, draws PWM_H pin, PWM_L pin and ENABLE and draws
Foot is plugged in the pin sockets of half-bridge motherboard, is controlled by half-bridge motherboard PWM and the control of power supply interface part, as needed
Select internal or external mode；
Step 3, by " starting " button on human-computer interaction interactive interface, the experiment of half-bridge circuit topology, " stopping " being carried out
Button stops experiment, after completing experiment, returns to initial interface by the Back button.
When carrying out full-bridge circuit experiment, experimental method is as follows:
Step 1, full-bridge circuit button is selected in the operation interface of open-cycle controller, into parameter setting interface, according to need
The frequency and duty ratio of gate pole control signal are set；
Step 2, two outputs that two bnc interfaces of H bridge motherboard are connected to open-cycle controller drive module are connected
On interface, two pieces of half-bridge daughter boards are plugged on H bridge motherboard, one end of the first gallium nitride metal-oxide-semiconductor of one of half-bridge daughter board
Connect and be mounted on the port CON-II of H bridge motherboard with one end of the second gallium nitride metal-oxide-semiconductor, the first gallium nitride metal-oxide-semiconductor it is another
The other end shunt capacitance of one end and the second gallium nitride MOS pipe is separately mounted to port CON-III and the port of H bridge motherboard
On CON-IV；One end of first gallium nitride metal-oxide-semiconductor of another piece of half-bridge daughter board connects and pacifies with one end of the second gallium nitride metal-oxide-semiconductor
On the port CON-I of H bridge motherboard, the other end of the other end of the first gallium nitride metal-oxide-semiconductor and the second gallium nitride metal-oxide-semiconductor is installed
On the port CON-III and port CON-IV of H bridge motherboard, need to lead to according to test between port CON-I and transformer primary side
It crosses banana joint terminal and is sequentially connected in series suitable inductance and capacitor；The grid and second of every piece of half-bridge daughter board the first gallium nitride metal-oxide-semiconductor
The grid of gallium nitride metal-oxide-semiconductor is connected with grid drive chip, draws PWM_H pin, PWM_L pin and ENABLE pin, respectively
It is plugged in the pin sockets of H bridge mother matrix, is controlled by H bridge motherboard PWM and the control of power supply interface part, selected as needed
Internal type is selected, selects terminal and B phase pwm signal wire jumper to select Terminal control by A phase pwm signal wire jumper, selects external mode,
By external PWM signal Input Interface Control；
Step 3, by " starting " button on human-computer interaction interactive interface, the experiment of full-bridge circuit topology, " stopping " being carried out
Button stops experiment, after completing experiment, returns to initial interface by the Back button.
When carrying out DAB Experiment of Electrical Circuits, experimental method is as follows:
Step 1, DAB circuit button is selected in the operation interface of open-cycle controller, into parameter setting interface, as needed
The frequency and duty ratio of gate pole control signal are set；
Step 2, by four bnc interfaces of two pieces of H bridge motherboards be connected to four of open-cycle controller drive module it is defeated
Out on connector, four pieces of half-bridge daughter boards are plugged on respectively on two pieces of H bridge motherboards, wherein the first nitridation of first piece of half-bridge daughter board
One end of gallium metal-oxide-semiconductor is connected and is mounted on one end of the second gallium nitride metal-oxide-semiconductor on one port CON-II of H bridge motherboard,
The other end shunt capacitance of the other end of first gallium nitride metal-oxide-semiconductor and the second gallium nitride metal-oxide-semiconductor is separately mounted to the end of H bridge motherboard
On mouth CON-III and port CON-IV；One end of first gallium nitride metal-oxide-semiconductor of second piece of half-bridge daughter board and the second gallium nitride MOS
One end of pipe connects and is mounted on the port CON- I of one piece of H bridge motherboard, the other end and the second nitrogen of the first gallium nitride metal-oxide-semiconductor
The other end for changing gallium metal-oxide-semiconductor is mounted on the port CON-III and port CON-IV of H bridge motherboard；The port of another H bridge motherboard
Load is connected between CON-III and port CON-IV, and electricity is connected between the port CON-I and port CON-II of two H bridge motherboards
The connection type and first piece of half-bridge daughter board and second piece half of sense and transformer, third block half-bridge daughter board and the 4th piece of half-bridge daughter board
The connection type of bridge daughter board is identical；The grid and second of two pieces of half-bridge daughter board the first gallium nitride metal-oxide-semiconductors on first piece of H bridge motherboard
The grid of gallium nitride metal-oxide-semiconductor is connected with grid drive chip, draws PWM_H pin, PWM_L pin and ENABLE pin and respectively inserts
It connects in the pin sockets of H bridge motherboard, is controlled by H bridge motherboard PWM and the control of power supply interface part, selected as needed
Internal type selects terminal and B phase pwm signal wire jumper to select Terminal control, selects external mode by A phase pwm signal wire jumper, by
External PWM signal Input Interface Control；The connection type phase of the inserting mode of second piece of H bridge motherboard and first piece of H bridge motherboard
Together；
Step 3, by " starting " button on human-computer interaction interactive interface, the experiment of DAB circuit topology is carried out, " stopping " being pressed
Button stops experiment, after completing experiment, returns to initial interface by the Back button.
Under half-bridge circuit mode, frequency is adjustable all the way, positive pulse width is adjustable for the drive module output of open-cycle controller
Square-wave signal；Under full-bridge circuit mode, the drive module output two-way frequency of open-cycle controller is adjustable, the adjustable square wave of phase shifting angle
Signal；Under DAB circuit-mode, four tunnel frequencies of open-cycle controller output are adjustable, the adjustable square-wave signal of phase shifting angle.
The invention has the advantages that the General experimental device and experimental method of a kind of power electronic circuit, pass through difference
Half-bridge daughter board, half-bridge motherboard and H bridge motherboard, when carrying out different Experiments of Electrical Circuits, it is only necessary to be plugged on half-bridge daughter board respectively
In the interface reserved on motherboard, the set-up time is dramatically saved, improves conventional efficient.Meanwhile the mother of the application design
Hardened structure can construct different power electronic circuit, it is only necessary to the daughter board that replacement is connected on interface, the opened loop control of design
System has man-machine display module and drive module, effectively improves the utilization rate of motherboard, significantly saves experiment cost, whole
Covering device is easy to use, has good use value in the research and development of teaching, experiment and product.
Detailed description of the invention
Fig. 1 is a kind of working interface signal of the open-cycle controller of the General experimental device of power electronic circuit of the invention
Figure；
Fig. 2 is a kind of half-bridge circuit mode ginseng of the General experimental device open-cycle controller of power electronic circuit of the invention
Number set interface schematic diagram；
Fig. 3 is a kind of half-bridge daughter board structural schematic diagram of the General experimental device of power electronic circuit of the invention；
Fig. 4 is a kind of circuit of the BUCK test circuit of the realization of the General experimental device of power electronic circuit of the invention
Figure；
Fig. 5 is a kind of full-bridge LLC test circuit of the realization of the General experimental device of power electronic circuit of the invention
Circuit diagram；
Fig. 6 is a kind of phase-shifting full-bridge test circuit of the realization of the General experimental device of power electronic circuit of the invention
Circuit diagram；
Fig. 7 is a kind of full-bridge inverting test circuit of the realization of the General experimental device of power electronic circuit of the invention
Circuit diagram；
Fig. 8 is a kind of circuit of the DAB test circuit of the realization of the General experimental device of power electronic circuit of the invention
Figure.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The General experimental device of a kind of power electronic circuit of the invention, for constructing half-bridge circuit topology, full-bridge circuit
Topology and DAB circuit topology, including open-cycle controller, as shown in Figure 1, being provided with human-computer interaction module and drive in open-cycle controller
Dynamic model block, human-computer interaction module include the half-bridge circuit button that open-cycle controller operation interface is set, full-bridge circuit button and
DAB circuit button, human-computer interaction module connect drive module, and drive module setting connects there are four connector, each output is exported
Interface is respectively used to driving half-bridge circuit topology, full-bridge circuit topology and DAB circuit topology；Half-bridge circuit topology is by one piece of half-bridge
Daughter board is plugged on one piece of half-bridge motherboard, connection capacitor, inductance composition；Full-bridge circuit topology is plugged on H by two pieces of half-bridge daughter boards
On bridge motherboard, connection capacitor, inductance composition；DAB circuit topology is plugged on two pieces of H bridge motherboards by four pieces of half-bridge daughter boards, connection
Capacitor, inductance composition；The BNC interface of half-bridge motherboard is connected with the output that the bnc interface of H bridge motherboard is directly connected to drive module
Mouthful.
As shown in Fig. 2, human-computer interaction module further includes the parameter setting of corresponding half-bridge circuit, full-bridge circuit and DAB circuit
Interface, parameter setting interface include the setting of frequency, duty ratio, further include that " starting " button, " stopping " button and " return " are pressed
Button.
As shown in figure 3, every piece of half-bridge daughter board includes the first gallium nitride metal-oxide-semiconductor, the second gallium nitride metal-oxide-semiconductor and driving control
Circuit processed, drive control circuit include the drive circuit module of isolation, grid drive chip and radiator.On every piece of half-bridge daughter board
It is provided with control and power supply interface and power interface, control and power supply interface part include PWM_L pin, PWM_H pin,
ENABLE pin ,+5V pin, GND pin totally 6 pins；Power interface part includes VSW pin, VDC- pin, and VDC+ draws
Foot totally 3 pins；PWM_H pin and PWM_L pin are respectively by the gate driving of the first gallium nitride metal-oxide-semiconductor of half-bridge daughter board and
The gate driving of nitride gallium metal-oxide-semiconductor is drawn；ENABLE pin is enable end, is defaulted as internal type pull-up and enables, outside side
Formula low level blocks grid output, by the gate driving of half-bridge daughter board the first gallium nitride metal-oxide-semiconductor and the grid of the second gallium nitride metal-oxide-semiconductor
Pole driving is drawn；+ 5V pin is used to power to isolated power supply module and grid drive chip, by the first gallium nitride of half-bridge daughter board
The driving power module of metal-oxide-semiconductor and the driving power module of the second gallium nitride metal-oxide-semiconductor are drawn；GND pin is control and power supply
Ground；VDC- pin is the ground terminal of DC bus, is drawn by the source electrode of the second gallium nitride metal-oxide-semiconductor；VDC+ pin is DC bus
Positive voltage terminal, by the first gallium nitride metal-oxide-semiconductor drain electrode draw；VSW pin is output switching terminal, the first gallium nitride metal-oxide-semiconductor
The drain electrode of source electrode and the second gallium nitride metal-oxide-semiconductor is drawn.
Every piece of half-bridge motherboard is powered using 12V DC, and port CON-II, port CON-III, end are provided on half-bridge motherboard
Mouth CON-IV, port CON-V, port CON-VI, port CON-VII and port VSW, basis between port VSW and port CON-V
It is required that connecting inductance or capacitor by banana joint terminal, DC power supply is connected between port CON-II and port CON-VI, is held
By the connection load of banana joint terminal between mouthful CON-IV and port CON-VII, be additionally provided on half-bridge motherboard PWM control and
Power supply interface part, the bnc interface including an internal pwm signal, i.e., for receiving the pwm signal of open-cycle controller, one
External PWM signal input interface, the first gallium nitride MOS pipe pwm signal wire jumper select terminal, the second gallium nitride metal-oxide-semiconductor PWM letter
Number wire jumper selects terminal.There is the pin jack of corresponding 9 pins of every piece of half-bridge daughter board on half-bridge motherboard, half-bridge motherboard is transmitted to half
The gate pole of first gallium nitride metal-oxide-semiconductor of bridge daughter board and the second gallium nitride metal-oxide-semiconductor control signal is there are two types of mode, internal type and outer
Portion's mode when selecting internal type, is transmitted to internal pwm signal by open-cycle controller and inputted by two jumper terminal independent controls
Interface gate pole controls signal, when selecting external mode, controls signal by external PWM signal input interface input gate pole, wherein open
The gate pole control signal that ring controller is transmitted to pwm signal input interface inside half-bridge motherboard is not no dead zone, by half-bridge mother
Intralamellar part digital circuit generates dead zone after generating, and dead time, which can according to need, to be adjusted, and default dead time is
100ns。
Every piece of H bridge motherboard is powered using 12V DC, is provided with port CON-I, port CON-II, port on H bridge motherboard
CON-III, port CON-IV and transformer, connect DC inductance, electricity as needed between port CON-I and port CON-II
The secondary side of the perhaps primary side of transformer, transformer connects load, connects direct current between port CON-III and port CON-IV
Source；PWM control and power supply interface part are additionally provided on H bridge motherboard, including the pwm signal for receiving open-cycle controller
Two BNC interfaces (A phase pwm signal input interface, B phase pwm signal input interface), an external PWM signal input interface,
For H bridge there are two bridge arm, two-phase bridge arm respectively has one group of pwm signal wire jumper selection terminal, and A phase the first gallium nitride metal-oxide-semiconductor pwm signal is jumped
Line options terminal, A phase the second gallium nitride MOS pipe pwm signal wire jumper select terminal, and B phase the first gallium nitride metal-oxide-semiconductor pwm signal is jumped
Line options terminal, B phase the second gallium nitride metal-oxide-semiconductor pwm signal wire jumper select terminal.There is every piece of half-bridge of two groups of correspondences on H bridge motherboard
The pin jack of 9 pins of daughter board, H bridge motherboard are transmitted to the first gallium nitride metal-oxide-semiconductor and second of each phase bridge arm half-bridge daughter board
There are two types of modes for the gate pole control signal of gallium nitride metal-oxide-semiconductor, are internal type and external mode respectively, utilize two jumper terminals
Independent control when selecting internal type, is transmitted to internal pwm signal input interface two-way gate pole by open-cycle controller and controls signal,
First gallium nitride metal-oxide-semiconductor of same bridge arm and the gate pole control signal of the second gallium nitride metal-oxide-semiconductor are complementary；When selecting external mode,
Signal, same bridge arm the first gallium nitride metal-oxide-semiconductor and the second gallium nitride MOS are controlled by external PWM signal input interface input gate pole
The gate pole control signal of pipe is mutually indepedent, wherein open-cycle controller is transmitted to the gate pole control signal of internal pwm signal input interface
It is not no dead zone, generates dead zone after generating by H bridge motherboard internal digital circuit, dead time can according to need progress
It adjusts, default dead time is 100ns.
Under half-bridge circuit mode, frequency is adjustable all the way, positive pulse width is adjustable for the drive module output of open-cycle controller
Square-wave signal；Under full-bridge circuit mode, the drive module output two-way frequency of open-cycle controller is adjustable, the adjustable square wave of phase shifting angle
Signal；Under DAB circuit-mode, four tunnel frequencies of open-cycle controller output are adjustable, the adjustable square-wave signal of phase shifting angle.
A kind of General experimental device of power electronic circuit of the invention, under half-bridge circuit mode, open-cycle controller is only
There is the first output port output pwm signal, other three output ports export low level, the door of first output port output
Pole signal frequency is adjustable, and range is 1kHz~999kHz, and duty ratio is adjustable, and range is 10%~90%, first output port
Connect the bnc interface of half-bridge motherboard；Under full-bridge circuit mode, the first output port and third output port output pwm signal,
Second output terminal mouth and the 4th output port export low level, and the gate signal frequency of the first output port output is adjustable, range
For 1kHz~999kHz, duty ratio 50%；The gate signal frequency and the output of the first output port of third output port output
Gate signal frequency it is identical, duty ratio 50%；The gate signal and the output of third output port of first output port output
Gate signal phase angle it is adjustable, for realizing phase shifting control, the first output port connects H bridge motherboard with third output port
Two bnc interfaces；Under DAB circuit-mode, four output ports have output, the gate pole letter of the first output port output
Number frequency is adjustable, and range is 1kHz~999kHz, duty ratio 50%；The gate signal frequency and the of second output terminal mouth output
The gate signal frequency of one output port output is identical, duty ratio 50%, and the first output port of delayed phase exports gate pole letter
Numbers 180 °, the gate signal frequency that the gate signal frequency of third output port output and the first output port export is identical, accounts for
For sky than being 50%, the phase angle of the gate signal of the gate signal and the first output port output of third output port output can
It adjusts, for realizing phase shifting control, the gate signal frequency of the 4th output port output and the gate pole letter of third output port output
Number frequency is identical, duty ratio 50%, and the first output port of delayed phase exports 180 ° of gate signal, the first output port and the
Two output ports connect two bnc interfaces of first H bridge motherboard；Third output port and the 4th output port output connection the
Two bnc interfaces of two H bridge motherboards；It can according to need selection " starting ", " stopping " or " return after parameter setting
Return " return operating mode selection interface reselect.
A kind of experimental method of the General experimental device of power electronic circuit of the invention carries out the experiment of half-bridge circuit topology
When, experimental method is as follows:
Step 1, half-bridge circuit button is selected in the operation interface of open-cycle controller, into parameter setting interface, according to need
The frequency and duty ratio of gate pole control signal are set；
Step 2, the bnc interface of a half-bridge motherboard is connected to an output connector of open-cycle controller drive module
On, half-bridge daughter board is plugged on half-bridge motherboard, passes through banana joint terminal connection electricity between port CON-V and port CON-VII
Hold, conducting wire connects between port CON-IV and port CON-V, one end of the first gallium nitride MOS of half-bridge daughter board and the second nitridation
One end of shunt capacitance between one end of gallium metal-oxide-semiconductor, the first gallium nitride metal-oxide-semiconductor is connected on the port CON-II of half-bridge motherboard,
The other end of first gallium nitride metal-oxide-semiconductor connects the other end of the second gallium nitride metal-oxide-semiconductor and is connected to the port of half-bridge motherboard simultaneously
On VSW, one end of the second gallium nitride metal-oxide-semiconductor is connected on the port CON-VI of half-bridge motherboard；The grid of first gallium nitride metal-oxide-semiconductor
Pole is connected with the grid of the second gallium nitride metal-oxide-semiconductor with grid drive chip, draws PWM_H pin, PWM_L pin and ENABLE and draws
Foot is plugged in the pin sockets of half-bridge motherboard, is controlled by half-bridge motherboard PWM and the control of power supply interface part, as needed
Select internal or external mode；
Step 3, by " starting " button on human-computer interaction interactive interface, the experiment of half-bridge circuit topology, " stopping " being carried out
Button stops experiment, after completing experiment, returns to initial interface by the Back button.
When carrying out full-bridge circuit experiment, experimental method is as follows:
Step 1, full-bridge circuit button is selected in the operation interface of open-cycle controller, into parameter setting interface, according to need
The frequency and duty ratio of gate pole control signal are set；
Step 2, two outputs that two bnc interfaces of H bridge motherboard are connected to open-cycle controller drive module are connected
On interface, two pieces of half-bridge daughter boards are plugged on H bridge motherboard, one end of the first gallium nitride metal-oxide-semiconductor of one of half-bridge daughter board
Connect and be mounted on the port CON-II of H bridge motherboard with one end of the second gallium nitride metal-oxide-semiconductor, the first gallium nitride metal-oxide-semiconductor it is another
The other end shunt capacitance of one end and the second gallium nitride MOS pipe is separately mounted to port CON-III and the port of H bridge motherboard
On CON-IV；One end of first gallium nitride metal-oxide-semiconductor of another piece of half-bridge daughter board connects and pacifies with one end of the second gallium nitride metal-oxide-semiconductor
On the port CON-I of H bridge motherboard, the other end of the other end of the first gallium nitride metal-oxide-semiconductor and the second gallium nitride metal-oxide-semiconductor is installed
On the port CON-III and port CON-IV of H bridge motherboard, need to lead to according to test between port CON-I and transformer primary side
It crosses banana joint terminal and is sequentially connected in series suitable inductance and capacitor；The grid and second of every piece of half-bridge daughter board the first gallium nitride metal-oxide-semiconductor
The grid of gallium nitride metal-oxide-semiconductor is connected with grid drive chip, draws PWM_H pin, PWM_L pin and ENABLE pin, respectively
It is plugged in the pin sockets of H bridge mother matrix, is controlled by H bridge motherboard PWM and the control of power supply interface part, selected as needed
Internal type is selected, selects terminal and B phase pwm signal wire jumper to select terminal by A phase pwm signal wire jumper, external mode is selected, by outer
The control of portion's PWM signal input interface；
Step 3, by " starting " button on human-computer interaction interactive interface, the experiment of full-bridge circuit topology, " stopping " being carried out
Button stops experiment, after completing experiment, returns to initial interface by the Back button.
When carrying out DAB Experiment of Electrical Circuits, experimental method is as follows:
Step 1, DAB circuit button is selected in the operation interface of open-cycle controller, into parameter setting interface, as needed
The frequency and duty ratio of gate pole control signal are set；
Step 2, by four bnc interfaces of two pieces of H bridge motherboards be connected to four of open-cycle controller drive module it is defeated
Out on connector, four pieces of half-bridge daughter boards are plugged on respectively on two pieces of H bridge motherboards, wherein the first nitridation of first piece of half-bridge daughter board
One end of gallium metal-oxide-semiconductor is connected and is mounted on one end of the second gallium nitride metal-oxide-semiconductor on one port CON-II of H bridge motherboard,
The other end shunt capacitance of the other end of first gallium nitride metal-oxide-semiconductor and the second gallium nitride metal-oxide-semiconductor is separately mounted to the end of H bridge motherboard
On mouth CON-III and port CON-IV；One end of first gallium nitride metal-oxide-semiconductor of second piece of half-bridge daughter board and the second gallium nitride MOS
One end of pipe connects and is mounted on the port CON- I of one piece of H bridge motherboard, the other end and the second nitrogen of the first gallium nitride metal-oxide-semiconductor
The other end for changing gallium metal-oxide-semiconductor is mounted on the port CON-III and port CON-IV of H bridge motherboard；The port of another H bridge motherboard
Load is connected between CON-III and port CON-IV, and electricity is connected between the port CON-I and port CON-II of two H bridge motherboards
The connection type and first piece of half-bridge daughter board and second piece half of sense and transformer, third block half-bridge daughter board and the 4th piece of half-bridge daughter board
The connection type of bridge daughter board is identical；The grid and second of two pieces of half-bridge daughter board the first gallium nitride metal-oxide-semiconductors on first piece of H bridge motherboard
The grid of gallium nitride metal-oxide-semiconductor is connected with grid drive chip, draws PWM_H pin, PWM_L pin and ENABLE pin and respectively inserts
It connects in the pin sockets of H bridge motherboard, is controlled by H bridge motherboard PWM and the control of power supply interface part, selected as needed
Internal type selects terminal and B phase pwm signal wire jumper to select terminal, external mode is selected, by outside by A phase pwm signal wire jumper
Pwm signal Input Interface Control；The inserting mode of second piece of H bridge motherboard is identical as the connection type of first piece of H bridge motherboard；
Step 3, by " starting " button on human-computer interaction interactive interface, the experiment of DAB circuit topology is carried out, " stopping " being pressed
Button stops experiment, after completing experiment, returns to initial interface by the Back button.
Embodiment 1
It realizes BUCK chopper circuit, as shown in figure 4, one piece of half-bridge daughter board cooperation builds circuit in one piece of half-bridge motherboard, opens
Ring controller is set as half-bridge circuit operating mode, and the frequency and duty ratio of gate pole control signal, open loop control is set as needed
The bnc interface of the first output port connection half-bridge motherboard of device processed, port CON-II connection DC power anode, port CON-VI
DC power cathode is connected, inductance is connected between port VSW and port CON-V, between port CON-IV and port CON-VII
Connection load, one end of the first gallium nitride metal-oxide-semiconductor of half-bridge daughter board is connected on the CON-II of port, the second gallium nitride metal-oxide-semiconductor
One end be connected on the CON-VI of port, and shunt capacitance between the ends, the other end and second of the first gallium nitride metal-oxide-semiconductor
The other end of gallium nitride metal-oxide-semiconductor connects, and is connected on the VSW of port；The circuit can only do BUCK circuit, can also be with port
CON-IV connection DC power anode, CON-VII connection DC power cathode, load are connected to input port CON-II and port
Between CON-VI, changing circuit is BOOST mode；
Embodiment 2
Realize that full-bridge LLC tests circuit, as shown in figure 5, two pieces of half-bridge daughter boards, which are matched, builds circuit on unification block H bridge motherboard,
Open-cycle controller selects full-bridge circuit operating mode, and the frequency and duty ratio of gate pole control signal, open loop control is set as needed
First output end of device processed connects two bnc interfaces of H bridge motherboard, port CON-III connection power supply with third output port
Anode, port CON-IV connection power cathode, connects inductance, capacitor, the original of transformer between port CON-I and port CON-II
Side, the secondary side of transformer, which connects, to be loaded, on one end connectivity port CON-III of the first gallium nitride metal-oxide-semiconductor of a half-bridge daughter board,
The other end connects one end of the second gallium nitride metal-oxide-semiconductor and is connected on the CON-II of port, the other end of the second gallium nitride metal-oxide-semiconductor
It is connected on the CON-IV of port, one end connectivity port CON-III of the first gallium nitride metal-oxide-semiconductor of another half-bridge daughter board is another
One end of the second gallium nitride MOS pipe of end connection is simultaneously connected on the CON-I of port, the other end connecting pin of the second gallium nitride metal-oxide-semiconductor
On mouth CON-IV.
Embodiment 3
Realize that phase-shifting full-bridge tests circuit, as shown in fig. 6, open-cycle controller selects full-bridge circuit operating mode, according to need
The frequency and duty ratio of gate pole control signal are set, and the first output port of open-cycle controller connects H with third output port
Two bnc interfaces of bridge motherboard, port CON-III connection positive pole, port CON-IV connection power cathode, port CON-I
Inductance is connected between the CON-II of port, the primary side of transformer, the secondary side of transformer, which connects, to be loaded, and the first of a half-bridge daughter board
On one end connectivity port CON-III of gallium nitride metal-oxide-semiconductor, the other end connects one end of the second gallium nitride metal-oxide-semiconductor and is connected to end
On mouth CON-II, the other end of the second gallium nitride metal-oxide-semiconductor is connected on the CON-IV of port, the first nitrogen of another half-bridge daughter board
Change one end connectivity port CON-III of gallium metal-oxide-semiconductor, the other end connects one end of the second gallium nitride metal-oxide-semiconductor and is connected to port
On CON-I, on the other end connectivity port CON-IV of the second gallium nitride MOS pipe.
Embodiment 4
Realize that full-bridge inverting tests circuit, as shown in fig. 7, open-cycle controller selects full-bridge circuit operating mode, according to need
The frequency and duty ratio of gate pole control signal are set, and the first output port of open-cycle controller connects H with third output port
Two bnc interfaces of bridge motherboard, port CON-III connection positive pole, port CON4 connection power cathode, port CON-I and
Inductance, capacitor and load, one end connectivity port of the first gallium nitride metal-oxide-semiconductor of a half-bridge daughter board are connected between the CON-II of port
On CON-III, the other end connects one end of the second gallium nitride metal-oxide-semiconductor and is connected on the CON-II of port, the second gallium nitride MOS
The other end of pipe is connected on the CON-IV of port, one end connectivity port of the first gallium nitride metal-oxide-semiconductor of another half-bridge daughter board
CON-III, the other end connect one end of the second gallium nitride metal-oxide-semiconductor and are connected on the CON-I of port, the second gallium nitride metal-oxide-semiconductor
On the CON-IV of other end connectivity port.
Embodiment 5
Realize that DAB tests circuit, four pieces of half-bridge daughter boards cooperate two pieces of H bridge motherboards to build circuit, double as double active full-bridges
To DC/DC converter, as shown in figure 8, one end of the first gallium nitride metal-oxide-semiconductor of a half-bridge daughter board and the second gallium nitride in wherein
One end of metal-oxide-semiconductor is connected and is mounted on one port CON-II of H bridge motherboard, the other end of the first gallium nitride metal-oxide-semiconductor and
The other end shunt capacitance of second gallium nitride MOS pipe is separately mounted on the port CON-III and port CON-IV of H bridge motherboard；
One end of first gallium nitride metal-oxide-semiconductor of another half-bridge daughter board connects with one end of the second gallium nitride metal-oxide-semiconductor and is mounted on a H
On the port CON1 of bridge motherboard, the other end of the other end of the first gallium nitride metal-oxide-semiconductor and the second gallium nitride metal-oxide-semiconductor is mounted on H bridge
On the port CON-III and port CON-IV of motherboard；Connect between the port CON-III and port CON-IV of another H bridge motherboard
Load is connect, inductance and transformer are connected between the port CON-I and port CON-II of two H bridge motherboards, in addition two pieces of half-bridge
The connection type of plate and same as described above.
A kind of General experimental device of power electronic circuit of the invention, half-bridge daughter board are made using the MOSFET of gallium nitride
For power device, gallium nitride MOSFET is smaller than the loss of the silicon switch mosfet of ad eundem, and power density is higher, required printing
Board area will be lacked；Half-bridge daughter board is directly plugged on half-bridge motherboard and H bridge motherboard.Capacitor, inductance, transformer on motherboard
Between connected by banana joint terminal, be attached between motherboard and open-cycle controller by BNC route, significantly save experiment
Human cost；Using half-bridge daughter board and different motherboards, then it is equipped with necessary capacitor, inductance, transformer, can built often
The electric circuit electronics technical circuit topology seen, and module can also realize recycling, significantly save the fund cost of experiment；Open loop
Controller is operated using touch screen interface, and the frequency of gate pole control signal, duty ratio, phase shifting angle, realization pair can be set
The above-mentioned power electronic circuit built carries out opened loop control；Package unit is easy to use, dramatically saves field of power electronics
Teaching, experiment and research and development of products in human cost when building circuit, time cost and fund cost.
Claims (9)
1. a kind of General experimental device of power electronic circuit, which is characterized in that for constructing half-bridge circuit topology, full-bridge circuit
Topology and DAB circuit topology, including open-cycle controller are provided with human-computer interaction module and driving mould in the open-cycle controller
Block, the human-computer interaction module include the half-bridge circuit button, full-bridge circuit button and DAB that open-cycle controller operating surface is arranged in
Circuit button, the human-computer interaction module connect drive module, and there are four export connector, Mei Gesuo for the drive module setting
Output connector is stated to be respectively used to drive the half-bridge circuit topology, full-bridge circuit topology and DAB circuit topology；The half-bridge electricity
Road topology is plugged on one piece of half-bridge motherboard by one piece of half-bridge daughter board, connection capacitor, inductance composition；The full-bridge circuit topology by
Two pieces of half-bridge daughter boards are plugged on H bridge motherboard, connection capacitor, inductance composition；The DAB circuit topology is inserted by four pieces of half-bridge daughter boards
It connects on two pieces of H bridge motherboards, connection capacitor, inductance composition；The BNC of the bnc interface of the half-bridge motherboard and the H bridge motherboard connects
Mouth is directly connected to the output connector of the drive module；Every piece of half-bridge daughter board includes the first gallium nitride metal-oxide-semiconductor, second
Gallium nitride metal-oxide-semiconductor and drive control circuit.
2. a kind of General experimental device of power electronic circuit as described in claim 1, which is characterized in that every piece of half-bridge
Control and power supply interface and power interface are provided on daughter board, the control and power supply interface part include PWM_L pin, PWM_
H pin, ENABLE pin ,+5V pin, GND pin totally 6 pins.
3. a kind of General experimental device of power electronic circuit as claimed in claim 2, which is characterized in that each half-bridge
Motherboard is powered using 12V DC, and port CON-II, port CON-III, port CON-IV, end are provided on the half-bridge motherboard
Mouth CON-V, port CON-VI, port CON-VII and port VSW, pass through banana head between the port VSW and port CON-V
Inductance or capacitor needed for terminal connection, connect DC power supply between the port CON-II and the port CON-VI, described
Pass through the connection load of banana joint terminal between port CON-IV and port CON-VII；Be additionally provided on half-bridge motherboard PWM control and
Power supply interface part, the PWM control and power supply interface part include one for receiving the pwm signal of open-cycle controller
Bnc interface, an external PWM signal input interface, the first gallium nitride metal-oxide-semiconductor pwm signal wire jumper select terminal, the second gallium nitride
Metal-oxide-semiconductor pwm signal wire jumper selects terminal；There are the control for corresponding to every piece of half-bridge daughter board and power supply interface and power to connect on half-bridge motherboard
The pin jack of mouth pin.
4. a kind of General experimental device of power electronic circuit as claimed in claim 3, which is characterized in that every piece of H-type
Motherboard is powered using 12V DC, is provided with port CON-I, port CON-II, port CON-III, port on the H-type motherboard
CON-IV and transformer connect DC inductance, capacitor and transformer between the port CON-I and port CON-II as needed
Primary side, the secondary side of the transformer connects load, connects DC power supply between the port CON-III and port CON-IV；
PWM control and power supply interface part are additionally provided on the H bridge motherboard, including the pwm signal for receiving open-cycle controller
Two bnc interfaces, respectively A phase pwm signal input interface and B phase pwm signal input interface, an external PWM signal input
Interface, for H bridge there are two bridge arm, two bridge arms respectively have one group of pwm signal wire jumper selection terminal, A phase the first gallium nitride metal-oxide-semiconductor PWM
Signal wire jumper selects terminal, and A phase the second gallium nitride metal-oxide-semiconductor pwm signal wire jumper selects terminal, B phase the first gallium nitride metal-oxide-semiconductor PWM
Signal wire jumper selects terminal, and B phase the second gallium nitride metal-oxide-semiconductor pwm signal wire jumper selects terminal；There are two groups of correspondences every on H bridge motherboard
The pin jack of block half-bridge 9 pins of daughter board.
5. a kind of General experimental device of power electronic circuit as claimed in claim 4, which is characterized in that the human-computer interaction
Module further includes the parameter setting interface of the corresponding half-bridge circuit, the full-bridge circuit and the DAB circuit, and the parameter is set
The setting that interface includes frequency, duty ratio is set, further includes " starting " button, " stopping " button and the Back button.
6. a kind of experimental method of the General experimental device of power electronic circuit, which is characterized in that based on as claimed in claim 5
A kind of power electronic circuit General experimental device, carry out half-bridge circuit topology experiment when, experimental method is as follows:
Step 1, it is set as needed in the operation interface selection half-bridge circuit button of open-cycle controller into parameter setting interface
Set the frequency and duty ratio of gate pole control signal；
Step 2, the bnc interface of a half-bridge motherboard is connected on an output connector of open-cycle controller drive module,
Half-bridge daughter board is plugged on half-bridge motherboard, connects capacitor, end by banana joint terminal between port CON-V and port CON-VII
Conducting wire connection, one end of the first gallium nitride MOS of half-bridge daughter board and the second gallium nitride MOS between mouth CON-IV and port CON-V
One end of shunt capacitance between one end of pipe, the first gallium nitride metal-oxide-semiconductor is connected on the port CON-II of half-bridge motherboard, the first nitrogen
The other end for changing gallium metal-oxide-semiconductor connects the other end of the second gallium nitride metal-oxide-semiconductor and is connected on the port VSW of half-bridge motherboard simultaneously,
One end of second gallium nitride metal-oxide-semiconductor is connected on the port CON-VI of half-bridge motherboard；The grid and second of first gallium nitride metal-oxide-semiconductor
The grid of gallium nitride metal-oxide-semiconductor is connected with grid drive chip, draws PWM_H pin, PWM_L pin and ENABLE pin and is plugged on
In the pin sockets of half-bridge motherboard, is controlled by half-bridge motherboard PWM and the control of power supply interface part, selection as needed are internal
Or external mode；
Step 3, by " starting " button on human-computer interaction interactive interface, the experiment of half-bridge circuit topology, " stopping " button are carried out
Stop experiment, after completing experiment, initial interface is returned to by the Back button.
7. a kind of experimental method of the General experimental device of power electronic circuit as claimed in claim 6, which is characterized in that into
When row full-bridge circuit is tested, experimental method is as follows:
Step 1, it is set as needed in the operation interface selection full-bridge circuit button of open-cycle controller into parameter setting interface
Set the frequency and duty ratio of gate pole control signal；
Step 2, two bnc interfaces of H bridge motherboard are connected to two output connectors of open-cycle controller drive module
On, two pieces of half-bridge daughter boards are plugged on H bridge motherboard, one end of the first gallium nitride metal-oxide-semiconductor of one of half-bridge daughter board and
One end of nitride gallium metal-oxide-semiconductor connects and is mounted on the port CON-II of H bridge motherboard, the other end of the first gallium nitride metal-oxide-semiconductor
The port CON-III and port CON-IV of H bridge motherboard are separately mounted to the other end shunt capacitance of the second gallium nitride metal-oxide-semiconductor
On；One end of first gallium nitride metal-oxide-semiconductor of another piece of half-bridge daughter board connects with one end of the second gallium nitride metal-oxide-semiconductor and is mounted on H
On the port CON-I of bridge motherboard, the other end of the other end of the first gallium nitride metal-oxide-semiconductor and the second gallium nitride metal-oxide-semiconductor is mounted on H bridge
On the port CON-III and port CON-IV of motherboard, needed to pass through banana according to test between port CON-I and transformer primary side
Joint terminal is sequentially connected in series suitable inductance and capacitor；The grid and the second gallium nitride of every piece of half-bridge daughter board the first gallium nitride metal-oxide-semiconductor
The grid of metal-oxide-semiconductor is connected with grid drive chip, draws PWM_H pin, PWM_L pin and ENABLE pin, is respectively plugged on H
It in the pin sockets of bridge mother matrix, is controlled by H bridge motherboard PWM and the control of power supply interface part, selects inside side as needed
Formula selects terminal and B phase pwm signal wire jumper to select terminal, selects external mode, believed by external PWM by A phase pwm signal wire jumper
Number Input Interface Control；
Step 3, by " starting " button on human-computer interaction interactive interface, the experiment of full-bridge circuit topology, " stopping " button are carried out
Stop experiment, after completing experiment, initial interface is returned to by the Back button.
8. a kind of experimental method of the General experimental device of power electronic circuit as claimed in claim 6, which is characterized in that into
When row DAB Experiment of Electrical Circuits, experimental method is as follows:
Step 1, it is set as needed in the operation interface selection DAB circuit button of open-cycle controller into parameter setting interface
The frequency and duty ratio of gate pole control signal；
Step 2, four outputs that four bnc interfaces of two pieces of H bridge motherboards are connected to open-cycle controller drive module are connected
On interface, four pieces of half-bridge daughter boards are plugged on respectively on two pieces of H bridge motherboards, wherein the first gallium nitride of first piece of half-bridge daughter board
One end of metal-oxide-semiconductor is connected and is mounted on one end of the second gallium nitride metal-oxide-semiconductor on one port CON-II of H bridge motherboard, the
The other end shunt capacitance of the other end of one gallium nitride metal-oxide-semiconductor and the second gallium nitride metal-oxide-semiconductor is separately mounted to the port of H bridge motherboard
On CON-III and port CON-IV；One end of first gallium nitride metal-oxide-semiconductor of second piece of half-bridge daughter board and the second gallium nitride metal-oxide-semiconductor
One end connect and be mounted on the port CON- I of one piece of H bridge motherboard, the other end of the first gallium nitride metal-oxide-semiconductor and second nitridation
The other end of gallium metal-oxide-semiconductor is mounted on the port CON-III and port CON-IV of H bridge motherboard；The port of another H bridge motherboard
Load is connected between CON-III and port CON-IV, and electricity is connected between the port CON-I and port CON-II of two H bridge motherboards
The connection type and first piece of half-bridge daughter board and second piece half of sense and transformer, third block half-bridge daughter board and the 4th piece of half-bridge daughter board
The connection type of bridge daughter board is identical；The grid and second of two pieces of half-bridge daughter board the first gallium nitride metal-oxide-semiconductors on first piece of H bridge motherboard
The grid of gallium nitride metal-oxide-semiconductor is connected with grid drive chip, draws PWM_H pin, PWM_L pin and ENABLE pin and respectively inserts
It connects in the pin sockets of H bridge motherboard, is controlled by H bridge motherboard PWM and the control of power supply interface part, as needed in selection
Portion's mode selects terminal and B phase pwm signal wire jumper to select terminal, external mode is selected, by outside by A phase pwm signal wire jumper
Pwm signal Input Interface Control；The inserting mode of second piece of H bridge motherboard is identical as the connection type of first piece of H bridge motherboard；
Step 3, by " starting " button on human-computer interaction interactive interface, the experiment of DAB circuit topology is carried out, " stopping " button stops
It only tests, after completing experiment, initial interface is returned to by the Back button.
9. a kind of experimental method of the General experimental device of power electronic circuit as claimed in claim 6, which is characterized in that half
Under bridge circuit mode, frequency is adjustable all the way for the output of the drive module of the open-cycle controller, the adjustable square wave letter of positive pulse width
Number；Under full-bridge circuit mode, the drive module output two-way frequency of the open-cycle controller is adjustable, the adjustable square wave letter of phase shifting angle
Number；Under DAB circuit-mode, four tunnel frequencies of the open-cycle controller output are adjustable, the adjustable square-wave signal of phase shifting angle.
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