CN216437048U - Integrated IGBT drive board with temperature detection function - Google Patents
Integrated IGBT drive board with temperature detection function Download PDFInfo
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- CN216437048U CN216437048U CN202122600359.0U CN202122600359U CN216437048U CN 216437048 U CN216437048 U CN 216437048U CN 202122600359 U CN202122600359 U CN 202122600359U CN 216437048 U CN216437048 U CN 216437048U
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Abstract
The application discloses IGBT drive plate integrates with temperature detection function includes: the temperature detection circuit comprises a drive board body, and an input port, a first drive circuit, a second drive circuit and a temperature detection circuit which are arranged on the drive board body; the input port respectively with first drive circuit the second drive circuit with temperature detection circuit connects, first drive circuit with the second drive circuit symmetry sets up on the drive plate body, first drive circuit second drive circuit and temperature detection circuit are used for connecting external component, can monitor device running state more conveniently through temperature detection circuit, and the IGBT drive plate adopts the symmetrical arrangement design, conveniently optimizes circuit layout and converter module wiring.
Description
Technical Field
The application relates to the technical field of IGBT driving, in particular to an integrated IGBT driving board with a temperature detection function.
Background
The IGBT is widely applied to the field of converters, and the IGBT driver is an interface between a control circuit and a main circuit of a power electronic device, plays a vital role in the working performance of the IGBT and influences the reliability of the whole system. In the high-power application occasions of 1700V and above, the interface of the IGBT driver in the related art adopts an asymmetric design and uses an upper plate and a lower plate, which is not beneficial to realizing the miniaturization and the compactness of the converter module and simultaneously increases the assembly cost of the module.
SUMMERY OF THE UTILITY MODEL
The application provides an integrate IGBT drive plate with temperature detection function, IGBT drive plate overall arrangement symmetry conveniently optimizes the circuit layout, can effectively improve interference immunity, realizes IGBT drive control high-efficiently, and sets up the running state that temperature detection circuit can monitor the device more conveniently.
The utility model discloses a following technical scheme realizes:
an integrated IGBT drive board with temperature detection function, comprising: the temperature detection circuit comprises a driving board body, and an input port, a first driving circuit, a second driving circuit and a temperature detection circuit which are arranged on the driving board body; the input port is respectively connected with the first drive circuit, the second drive circuit and the temperature detection circuit, the first drive circuit and the second drive circuit are symmetrically arranged on the drive plate body, and the first drive circuit, the second drive circuit and the temperature detection circuit are used for being connected with an external component.
In some embodiments, the first driving circuit includes a first isolation transformer, an upper bridge arm driving unit, and a first driving output port, which are connected in sequence; the second driving circuit comprises a second isolation transformer, a lower bridge arm driving unit and a second driving output port which are connected in sequence.
In some embodiments, the temperature detection circuit includes a third isolation transformer and a temperature detection port connected in series.
In some embodiments, the symmetrical arrangement comprises: the first isolation transformer and the second isolation transformer are symmetrically arranged, the upper bridge arm driving unit and the lower bridge arm driving unit are symmetrically arranged, and the first driving output port and the second driving output port are symmetrically arranged.
In some embodiments, the first and second drive output ports are disposed at one end of the drive plate body, the temperature detection port and the third isolation transformer are disposed at the other end of the drive plate body, and the input port is disposed between the temperature detection port and the third isolation transformer and the first and second isolation transformers, the one end of the drive plate body being opposite to the other end of the drive plate body.
In some embodiments, the input port, the first drive output port, the second drive output port, and the temperature detection port are in-line rectangular receptacles.
In some embodiments, the input port comprises: the power supply circuit comprises a positive power supply input pin, a negative power supply input pin, a total fault output grounding pin, a total fault signal output pin, a temperature sampling output grounding pin, a temperature sampling output pin, a second driving output port fault output grounding pin, a second driving output port fault output pin, a first driving output port fault output grounding pin, a first driving output port fault output pin, a second driving output port signal negative input pin, a second driving output port signal positive input pin, a first driving output port signal negative input pin and a first driving output port signal positive input pin.
In some embodiments, the first drive output port comprises: the first driving output port negative voltage interface pin, the first driving output port positive voltage interface pin, the first driving output port output ground pin, the first driving output port gate opening output pin, the first driving output port gate closing output pin, the first driving output port reserved output ground pin, the first driving output port state monitoring first interface pin and the first driving output port state monitoring second interface pin.
In some embodiments, the second drive output port comprises: the second driving output port negative voltage interface pin, the second driving output port positive voltage interface pin, the second driving output port output ground pin, the second driving output port gate opening output pin, the second driving output port gate closing output pin, the second driving output port reserved output ground pin, the second driving output port state monitoring second interface pin and the second driving output port state monitoring second interface pin.
Compared with the prior art, one or more embodiments in the above scheme can have the following advantages or beneficial effects:
in the application, the first driving circuit and the second driving circuit which are installed on the driving plate body are symmetrically arranged, and the symmetrical design is adopted, so that the driving plate body is more compact in structure, strong in universality and convenient to arrange, the anti-interference performance can be effectively improved, and the driving plate body is provided with the operating state which can conveniently monitor devices on the driving plate body.
Drawings
The present application will be described in more detail below on the basis of embodiments and with reference to the accompanying drawings.
Fig. 1 illustrates an integrated IGBT driver board with a temperature detection function according to an embodiment of the present application;
fig. 2 is a schematic diagram illustrating a connection relationship between an integrated IGBT driver board with a temperature detection function and an external component according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below in a clear and complete manner with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a diagram illustrating an integrated IGBT driver board with a temperature detection function according to an example of the present application, including:
a drive plate body; an input port X1 mounted on the drive board body, a first drive circuit and a second drive circuit.
The input port X1 is used for being connected with a power supply module, and after the power supply module is connected, direct-current voltage is provided for the drive board through the input port X1, and the direct-current voltage is respectively connected with the first drive circuit, the second drive circuit and the temperature detection circuit through the input port X1, so that the drive power supply is guaranteed.
The first driving circuit and the second driving circuit are symmetrically arranged on the driving plate body, so that the interface layout of the whole device is symmetrical, and the modular design of the converter is facilitated.
The first drive circuit, the second drive circuit and the temperature detection circuit are respectively connected with an external component.
In this embodiment, the first drive circuit and the second drive circuit on the drive plate body are symmetrically arranged, so that the circuit layout is convenient to optimize, the anti-interference performance can be effectively improved, the IGBT drive control is efficiently realized, and the temperature detection circuit is arranged to monitor the running state of the device.
For example, referring to a schematic connection relationship between an integrated IGBT driving board with a temperature detection function and an external device shown in fig. 2, the external device may include: the power supply module comprises a first detection plate corresponding to a first driving circuit, a second detection plate corresponding to a second driving circuit, an upper layer controller, a first optical coupling isolation unit corresponding to the first driving circuit, a second optical coupling isolation unit corresponding to the second driving circuit, a power supply module, a first IGBT corresponding to an upper bridge arm, a second IGBT corresponding to a lower bridge arm and an NTC.
In order to ensure that the driving power supply is sufficient, the first driving circuit and the second driving circuit are further limited.
Referring to fig. 2, a schematic diagram of a connection relationship between an integrated IGBT driver board with a temperature detection function and an external component is shown, where the first driver circuit includes a first isolation transformer T1, an upper bridge arm driver unit, and a first drive output port X2, which are connected in sequence, an input port X1 connects a dc voltage to the upper bridge arm driver unit through a first isolation transformer T1 and supplies power to the upper bridge arm driver unit, and a first drive output port X2 connects a first IGBT corresponding to the upper bridge arm through a first detection board and provides a drive signal to the first IGBT. The second driving circuit comprises a second isolation transformer T2, a lower bridge arm driving unit and a second driving output port X3 which are sequentially connected, the input port X1 connects direct-current voltage to the lower bridge arm driving unit through the second isolation transformer T2 and supplies power to the lower bridge arm driving unit, and the second driving output port X3 is connected with a second IGBT corresponding to the upper bridge arm through a second detection plate and supplies driving signals to the second IGBT.
In order to ensure the stable operation of the temperature detection circuit, the temperature detection circuit is further limited. Referring to fig. 1, the integrated IGBT driver board with a temperature detection function includes a third isolation transformer T3 and a temperature detection port X4, which are connected in sequence, where the input port X1 connects a dc voltage to the temperature detection port X4 through the second isolation transformer T3, and exemplarily, the temperature detection port X4 is an NTC detection interface, which can collect NTC values at positions of the input port X1, the first drive output port X2, the second drive output port X3, and the temperature detection port X4, and report a maximum temperature therein, so as to conveniently monitor states of the ports.
In order to further improve the anti-interference performance of the IGBT driver board, and make the structure of the driver board stable and compact, the structure of the IGBT driver board is further configured, please refer to the integrated IGBT driver board with the temperature detection function provided in fig. 1, and the symmetric configuration may include: the first isolation transformer T1 and the second isolation transformer T2 are symmetrically arranged, the upper bridge arm driving unit and the lower bridge arm driving unit are symmetrically arranged, and the first driving output port and the second driving output port are symmetrically arranged.
Referring to fig. 1, an integrated IGBT driver board with a temperature detection function is provided, a first drive output port X2 and a second drive output port X3 are disposed at one end of a driver board body, a temperature detection port X4 and a third isolation transformer T3 are disposed at the other end of the driver board body, an input port X1 is disposed between the temperature detection port X4 and the third isolation transformer T3 and the first isolation transformer T1 and the second isolation transformer T2, one end of the driver board body is opposite to the other end of the driver board body, and the relative position of the driver board body is perpendicular to the symmetric arrangement of the driver board, so that the driver board body is symmetrically arranged, and a modular design is facilitated.
In the embodiment of the present application, the input port X1, the first drive output port X2, the second drive output port X3 and the temperature detection port X4 are rectangular sockets of a straight-insertion type, illustratively, the input port X1 is a rectangular socket of 14 cores, and the first drive output port X2, the second drive output port X3 and the temperature detection port X4 are rectangular sockets of 8 cores, which are convenient to mount on the drive board body.
In the embodiment of the application, the input port X1, the first drive output port X2, the second drive output port X3 and the temperature detection port X4 are all provided with screws, and the screws are used for fixing the socket connected with the corresponding port.
In the embodiment of the present application, the input port X1 includes: the power supply circuit comprises a positive power supply input pin, a negative power supply input pin, a total fault output grounding pin, a total fault signal output pin, a temperature sampling output grounding pin, a temperature sampling output pin, a second driving output port fault output grounding pin, a second driving output port fault output pin, a first driving output port fault output grounding pin, a first driving output port fault output pin, a second driving output port signal negative input pin, a second driving output port signal positive input pin, a first driving output port signal negative input pin and a first driving output port signal positive input pin.
In the embodiment of the present application, the first drive output port X2 includes: the first driving output port negative voltage interface pin, the first driving output port positive voltage interface pin, the first driving output port output ground pin, the first driving output port gate opening output pin, the first driving output port gate closing output pin, the first driving output port reserved output ground pin, the first driving output port state monitoring first interface pin and the first driving output port state monitoring second interface pin.
In the embodiment of the present application, the second drive output port X3 includes: the second driving output port negative voltage interface pin, the second driving output port positive voltage interface pin, the second driving output port output ground pin, the second driving output port gate opening output pin, the second driving output port gate closing output pin, the second driving output port reserved output ground pin, the second driving output port state monitoring second interface pin and the second driving output port state monitoring second interface pin.
In the embodiment of the present application, the temperature detection port X4 includes: the temperature detection device comprises an input port temperature detection input pin, an input port temperature detection input grounding pin, a first drive output port temperature detection input grounding pin, a second drive output port temperature detection input grounding pin, a temperature detection port temperature input pin and a temperature detection port temperature input grounding pin.
Referring to table 1, table 1 specifically describes the pin definitions of the sockets in the present application.
TABLE 1
It should be noted that the total fault in table 1 refers to that the controller obtains the outputs of the a-path fault and the B-path fault collected by the input port X1, and outputs the total fault after performing and logic on the outputs of the a-path fault and the B-path fault, which may be used to determine the fault conditions of the first IGBT and the second IGBT. Referring to fig. 2, OUTA and OUTB collected by the input port X1 are obtained by the upper controller. The a-path fault represents a first IGBT corresponding to the first drive output port X2, the B-path fault represents a second IGBT corresponding to the second drive output port X3, the input port X1 further obtains a temperature monitoring signal of each port through the temperature detection port X4, and further obtains and reports the maximum temperature of the temperature monitoring signal to an upper controller, that is, the NTC-OUT output in fig. 2, 1 path may represent the first IGBT corresponding to the output port X2, and 2 paths may represent the second IGBT corresponding to the output port X3. When the voltage module provides +15.7V direct-current voltage for the input port X1 of the driving board, the input port X1 also receives PWM control signals of the upper and lower bridge arm IGBTs and feeds the PWM control signals back to the upper and lower bridge arm driving units.
In the external component, a power supply module is connected to a positive power supply input pin and a negative power supply input pin of an input port X1, an NTC is connected to a pin of a temperature detection port X4, and an upper controller is connected to a total fault signal output pin, a temperature sampling output pin, a first drive output port fault output pin and a second drive output port fault output pin of an input port X1 to acquire fault information.
The first detection plate is connected with the first drive output port gate opening output pin and the first drive output port gate opening output pin, and the second detection plate is connected with the second drive output port gate opening output pin and the second drive output port gate opening output pin to obtain the switching rate of the corresponding IGBT element.
It can be understood that the PWM control signal and the feedback signal are isolated by the arrangement of the first and second optical coupling isolation units, so that the interference immunity of the signal can be improved.
In the present application, the first detection board and the second detection board are mounted on the first IGBT surface and the second IGBT surface to adjust the switching rate of the IGBT element, so as to meet the requirements of different projects.
The ports of the integrated IGBT drive board provided by the above embodiment are symmetrically arranged, and are isolated by two different isolation transformers T1/T2, and each transformer can supply power for one bridge arm drive unit.
It can be understood that the similar symmetrical layout of the integrated IGBT driving board with the temperature detection function can be realized by replacing the electrical interface of the external signal with the optical fiber interface.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. An integrate IGBT drive plate with temperature detect function which characterized in that includes: the temperature detection circuit comprises a drive board body, and an input port, a first drive circuit, a second drive circuit and a temperature detection circuit which are arranged on the drive board body; the input port is respectively connected with the first drive circuit, the second drive circuit and the temperature detection circuit, the first drive circuit and the second drive circuit are symmetrically arranged on the drive plate body, and the first drive circuit, the second drive circuit and the temperature detection circuit are used for being connected with an external component.
2. The integrated IGBT drive board with the temperature detection function according to claim 1, wherein the first drive circuit comprises a first isolation transformer, an upper bridge arm drive unit and a first drive output port which are connected in sequence; the second driving circuit comprises a second isolation transformer, a lower bridge arm driving unit and a second driving output port which are connected in sequence.
3. The integrated IGBT drive board with the temperature detection function according to claim 2, wherein the temperature detection circuit comprises a third isolation transformer and a temperature detection port which are connected in sequence.
4. The integrated IGBT driver board with temperature detection function according to claim 2, wherein the symmetrical arrangement includes: the first isolation transformer and the second isolation transformer are symmetrically arranged, the upper bridge arm driving unit and the lower bridge arm driving unit are symmetrically arranged, and the first driving output port and the second driving output port are symmetrically arranged.
5. The integrated IGBT drive board with temperature detection function of claim 4, wherein the first and second drive output ports are disposed at one end of the drive board body, the temperature detection port and a third isolation transformer are disposed at the other end of the drive board body, the input port is disposed between the temperature detection port and the third isolation transformer and the first and second isolation transformers, and the one end of the drive board body is opposite to the other end of the drive board body.
6. The integrated IGBT driver board with temperature detection function of claim 3, wherein the input port, the first drive output port, the second drive output port and the temperature detection port are straight-through type rectangular sockets.
7. The integrated IGBT driver board with temperature detection function according to claim 3, wherein the input port includes: the power supply circuit comprises a positive power supply input pin, a negative power supply input pin, a total fault output grounding pin, a total fault signal output pin, a temperature sampling output grounding pin, a temperature sampling output pin, a second driving output port fault output grounding pin, a second driving output port fault output pin, a first driving output port fault output grounding pin, a first driving output port fault output pin, a second driving output port signal negative input pin, a second driving output port signal positive input pin, a first driving output port signal negative input pin and a first driving output port signal positive input pin.
8. The integrated IGBT drive board with temperature detection function of claim 3, wherein the first drive output port comprises: the first driving output port negative voltage interface pin, the first driving output port positive voltage interface pin, the first driving output port output ground pin, the first driving output port gate opening output pin, the first driving output port gate closing output pin, the first driving output port reserved output ground pin, the first driving output port state monitoring first interface pin and the first driving output port state monitoring second interface pin.
9. The integrated IGBT drive board with temperature detection function of claim 3, wherein the second drive output port comprises: the second driving output port negative voltage interface pin, the second driving output port positive voltage interface pin, the second driving output port output ground pin, the second driving output port gate opening output pin, the second driving output port gate closing output pin, the second driving output port reserved output ground pin, the second driving output port state monitoring second interface pin and the second driving output port state monitoring second interface pin.
10. The integrated IGBT driver board with temperature detection function according to claim 3, wherein the temperature detection port includes: the temperature detection device comprises an input port temperature detection input pin, an input port temperature detection input grounding pin, a first drive output port temperature detection input grounding pin, a second drive output port temperature detection input grounding pin, a temperature detection port temperature input pin and a temperature detection port temperature input grounding pin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122600359.0U CN216437048U (en) | 2021-10-27 | 2021-10-27 | Integrated IGBT drive board with temperature detection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122600359.0U CN216437048U (en) | 2021-10-27 | 2021-10-27 | Integrated IGBT drive board with temperature detection function |
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| CN216437048U true CN216437048U (en) | 2022-05-03 |
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| CN202122600359.0U Active CN216437048U (en) | 2021-10-27 | 2021-10-27 | Integrated IGBT drive board with temperature detection function |
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