Isolation driving chip with error report function, driving device and electronic equipment

Abstract

The utility model relates to the technical field of driving, in particular to an isolation driving chip with an error report function, a driving device and electronic equipment, and the isolation driving chip with the error report function comprises an input side terminal group which comprises an error report terminal and a signal input terminal, the error report terminal is used for outputting an error report signal under the condition that the operation of the isolation driving chip with the error report has an error, and the signal input terminal is used for receiving a data signal; the output side terminal group comprises a power supply terminal and a signal output terminal, the power supply terminal is used for receiving power supply voltage, and the signal output terminal is used for outputting a driving signal to a grid electrode of a transistor to be driven; and the isolation assembly is arranged between the input side terminal group and the output side terminal group. According to the embodiment of the utility model, the error reporting function of the isolation driving chip is realized, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of drive technology, and in particular to an isolated drive chip, drive device, and electronic device with error reporting. Background Technology

[0002] Gate drivers are used to drive the gates of transistors and have a wide range of applications, especially isolated gate drivers, which have even broader application prospects due to their high noise immunity and excellent performance. However, current isolated gate drivers lack error reporting functionality. Furthermore, adding error reporting functionality would require changing the package of the isolated gate driver, which undoubtedly increases costs. Utility Model Content

[0003] According to one aspect of the present invention, an isolation driver chip with error reporting is provided, the isolation driver chip with error reporting comprising:

[0004] The input-side terminal group includes an error reporting terminal and a signal input terminal. The error reporting terminal is used to output an error reporting signal when an error occurs in the operation of the isolation driver chip with error reporting. The signal input terminal is used to receive data signals.

[0005] The output-side terminal group includes a power supply terminal and a signal output terminal, wherein the power supply terminal is used to receive a power supply voltage, and the signal output terminal is used to output a drive signal to the gate of the transistor to be driven;

[0006] An isolation component is disposed between the input-side terminal group and the output-side terminal group.

[0007] In one possible implementation,

[0008] The input-side terminal group has three terminals, including one error reporting terminal, one signal input terminal, and a grounding terminal.

[0009] The output-side terminal group has three terminals, including a first power supply terminal, a second power supply terminal, and a signal output terminal.

[0010] In one possible implementation,

[0011] The input-side terminal group has four terminals, including two error reporting terminals and two signal input terminals;

[0012] The output-side terminal group has four terminals, including a first power supply terminal, a second power supply terminal, a signal output terminal, and a detection terminal.

[0013] In one possible implementation, the isolation driver chip with error reporting is also connected to an input-side circuit, which includes a first input resistor, a second input resistor, and a first transistor, wherein...

[0014] The first terminal of the first input resistor and the first terminal of the second input resistor are used to receive the power supply voltage.

[0015] The second terminal of the first input resistor is connected to the collector of the first transistor and the signal input terminal, for outputting the data signal.

[0016] The second terminal of the second input resistor is connected to the error reporting terminal.

[0017] The base of the first transistor is used to receive the input signal, and the emitter of the first transistor is grounded.

[0018] In one possible implementation, the power supply terminals include a first power supply terminal and a second power supply terminal, wherein the first power supply terminal is used to receive power supply voltage, and the second power supply terminal is grounded.

[0019] The isolation driver chip with error reporting is also connected to the output-side circuit, which includes a first output capacitor, a first output resistor, a second output resistor, and a first output diode.

[0020] The first terminal of the first output capacitor is connected to the signal output terminal.

[0021] The second terminal of the first output capacitor is connected to the cathode of the first output diode and the first terminal of the first output resistor.

[0022] The anode of the first output diode is connected to the first terminal of the second output resistor.

[0023] The second end of the first output resistor and the second end of the second output resistor are connected to the gate of the transistor to be driven.

[0024] In one possible implementation, the output-side terminal group further includes a detection terminal, and the output-side circuit further includes a first detection capacitor, a first detection resistor, and a first detection diode, wherein...

[0025] The detection terminal is connected to the first end of the first detection capacitor and the first end of the first detection resistor.

[0026] The second end of the first detection resistor is connected to the anode of the first detection diode.

[0027] The cathode of the first detection diode is connected to the drain of the transistor to be driven.

[0028] In one possible implementation, the isolation component is used to achieve electrical isolation and signal transmission between the input side and the output side.

[0029] According to one aspect of the present invention, a driving device is provided, the driving device including the aforementioned isolated driving chip with error reporting.

[0030] According to one aspect of the present invention, an electronic device is provided, the electronic device including the aforementioned driving device.

[0031] In one possible implementation, the electronic device includes a power supply device and an electric drive device.

[0032] The isolated driver chip with error reporting in this embodiment uses one or more terminals in the input-side terminal group as error reporting terminals. On the one hand, it can output an error reporting signal when an error occurs during the operation of the isolated driver chip with error reporting, thereby realizing the error reporting function of the isolated driver chip. On the other hand, it can modify the existing terminal functions in the existing package into error reporting terminals without changing the package, thus achieving high compatibility with existing products and reducing costs.

[0033] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the present invention. Other features and aspects of the present invention will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the specification, serve to explain the technical solutions of the present invention.

[0035] Figure 1 A schematic diagram of an isolated driver chip with error reporting according to an embodiment of the present invention is shown.

[0036] Figure 2 A schematic diagram of an isolated driver chip with error reporting according to an embodiment of the present invention is shown.

[0037] Figure 3 A schematic diagram of an isolated driver chip with error reporting according to an embodiment of the present invention is shown.

[0038] Figure 4 A schematic diagram of the input-side circuit according to an embodiment of the present invention is shown.

[0039] Figure 5 A schematic diagram of the output-side circuit according to an embodiment of the present invention is shown. Detailed Implementation

[0040] Various exemplary embodiments, features, and aspects of the present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0041] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0045] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0046] Furthermore, to better illustrate this utility model, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this utility model can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this utility model.

[0047] Please see Figure 1 , Figure 1 A schematic diagram of an isolated driver chip with error reporting according to an embodiment of the present invention is shown.

[0048] like Figure 1 As shown, the isolation driver chip with error reporting includes:

[0049] The input-side terminal group 10 includes an error reporting terminal 110 and a signal input terminal 120. The error reporting terminal 110 is used to output an error reporting signal when an error occurs in the operation of the isolation driver chip with error reporting. The signal input terminal 120 is used to receive data signals.

[0050] The output-side terminal group 20 includes a power supply terminal 210 and a signal output terminal 220, wherein the power supply terminal 210 is used to receive power supply voltage, and the signal output terminal 220 is used to output a drive signal to the gate of the transistor to be driven.

[0051] An isolation component 30 is disposed between the input-side terminal group 10 and the output-side terminal group 20.

[0052] The isolated driver chip with error reporting in this embodiment of the utility model uses one or more terminals in the input-side terminal group 10 as error reporting terminals 110. On the one hand, it can output an error reporting signal when an error occurs in the operation of the isolated driver chip with error reporting, thereby realizing the error reporting function of the isolated driver chip and improving safety and reliability. On the other hand, it can modify the existing terminal functions in the existing package into error reporting terminals 110 without changing the package, achieving high compatibility with existing products and reducing costs.

[0053] This embodiment of the invention does not limit the specific form, generation method, or specific error type of the error reporting signal output by the error reporting terminal 110. Those skilled in the art can set it according to actual conditions and needs, and implement it using relevant technologies. For example, error reporting types may include undervoltage (UV), short circuit / saturation (SC / Saturation), overtemperature (OT), overvoltage (OV), etc.

[0054] This embodiment of the invention does not limit the specific number of terminals in the input-side terminal group 10 and the output-side terminal group 20. The input-side terminal group 10 includes at least one error reporting terminal 110 and one signal input terminal 120. The input side does not require power, that is, the input-side terminal group 10 does not include a power terminal, but the error reporting terminal 110 and the signal input terminal 120 can be used to support signal input and fault reporting. The output-side terminal group 20 includes at least one power terminal 210 and one signal output terminal 220. Of course, the number of error reporting terminals 110, signal input terminals 120, power terminals 210, and signal output terminals 220 can be configured according to actual conditions and needs. In addition, other terminals can also be included, as long as they match the number of pins in the existing package.

[0055] This utility model embodiment does not limit the specific implementation of the isolation component 30. Those skilled in the art can select a suitable isolation scheme to implement the isolation component 30 according to the actual situation and needs. For example, in one possible implementation, the isolation component 30 is used to realize electrical isolation and signal transmission between the input side and the output side. The isolation component 30 includes any one of optocoupler isolators, capacitor isolators, electromagnetic isolators, etc.

[0056] Of course, the isolation driver chip may also include other circuits that implement the driving function, and this embodiment of the present invention does not limit this.

[0057] The following provides an example of the possible package types for isolated driver chips.

[0058] Please see Figure 2 , Figure 2 A schematic diagram of an isolated driver chip with error reporting according to an embodiment of the present invention is shown.

[0059] In one possible implementation, such as Figure 2 As shown,

[0060] The input-side terminal group 10 has three terminals, including an error reporting terminal 110, a signal input terminal 120, and a ground terminal 130.

[0061] The output-side terminal group 20 has three terminals, including a first power supply terminal 210, a second power supply terminal 211, and a signal output terminal 220. For example, the first power supply terminal 210 is used to connect to the power supply voltage VCC, and the second power supply terminal 211 can be used for grounding.

[0062] Please see Figure 3 , Figure 3A schematic diagram of an isolated driver chip with error reporting according to an embodiment of the present invention is shown.

[0063] In one possible implementation, such as Figure 3 As shown,

[0064] The input-side terminal group 10 has four terminals, including two error reporting terminals 110 and two signal input terminals 120.

[0065] The output-side terminal group 20 has four terminals, including a first power supply terminal 210, a second power supply terminal 211, a signal output terminal 220, and a detection terminal 230. For example, the first power supply terminal 210 is used to connect to the power supply voltage VCC, and the second power supply terminal 211 can be used for grounding.

[0066] Please see Figure 4 , Figure 4 A schematic diagram of the input-side circuit according to an embodiment of the present invention is shown.

[0067] In one possible implementation, the isolation driver chip with error reporting is also connected to the input-side circuitry.

[0068] For example, such as Figure 4 As shown, the input-side circuit may include a first input resistor Ri1, a second input resistor Ri2, and a first transistor Q1, wherein,

[0069] The first terminal of the first input resistor Ri1 and the first terminal of the second input resistor Ri2 are used to receive the power supply voltage VCC.

[0070] The second end of the first input resistor Ri1 is connected to the collector of the first transistor Q1 and the signal input terminal 120, and is used to output the data signal (high level or low level).

[0071] The second terminal of the second input resistor Ri2 is connected to the error reporting terminal 110.

[0072] The base of the first transistor Q1 is used to receive the input signal, and the emitter of the first transistor Q1 is grounded.

[0073] For example, the input is the turn-on control signal of the first transistor Q1.

[0074] For example, such as Figure 4As shown, if the first transistor Q1 is turned on, the level of signal input terminal 120 is pulled low, and no current flows into signal input terminal 120. In this case, the output side (signal output terminal 220) is logic low. If the first transistor Q1 is turned off, the level of signal input terminal 120 is pulled high, current flows into signal input terminal 120, and is transmitted to the output side through isolation component 30 (such as optocoupler isolator). In this case, the output side (signal output terminal 220) is logic high.

[0075] For example, such as Figure 4 As shown, error reporting terminal 110 is an open-drain output connected to an external pull-up resistor. Under normal operation, error reporting terminal 110 is high impedance, meaning it is at a high level. When an error occurs, the level of error reporting terminal 110 is pulled low. Of course, error reporting terminal 110 can also be designed as a normal logic output signal; this embodiment of the invention does not limit this design.

[0076] In one possible implementation, such as Figure 3 As shown, the power terminal 210 may include a first power terminal 210 and a second power terminal 211. The first power terminal 210 is used to receive the power supply voltage VCC, and the second power terminal 211 is grounded.

[0077] In one possible implementation, the isolation driver chip with error reporting is also connected to the output-side circuit.

[0078] Please see Figure 5 , Figure 5 A schematic diagram of the output-side circuit according to an embodiment of the present invention is shown.

[0079] For example, such as Figure 5 As shown, the output-side circuit may include a first output capacitor CN, a first output resistor Ro1, a second output resistor Ro2, and a first output diode D1, wherein,

[0080] The first terminal of the first output capacitor CN is connected to the signal output terminal 220.

[0081] The second terminal of the first output capacitor CN is connected to the cathode of the first output diode D1 and the first terminal of the first output resistor Ro1.

[0082] The anode of the first output diode D1 is connected to the first terminal of the second output resistor Ro2.

[0083] The second end of the first output resistor Ro1 and the second end of the second output resistor Ro2 are connected to the gate of the transistor Q to be driven.

[0084] For example, such as Figure 5As shown, the second power supply terminal 211 can also be connected to the source of the transistor Q to be driven.

[0085] In one possible implementation, such as Figure 3 As shown, the output-side terminal group 20 may further include a detection terminal 230.

[0086] For example, such as Figure 5 As shown, the output-side circuit may further include a first detection capacitor Cblk, a first detection resistor Ro3, and a first detection diode D2, wherein,

[0087] The detection terminal 230 is connected to the first terminal of the first detection capacitor Cblk and the first terminal of the first detection resistor Ro3, and the second terminal of the first detection capacitor Cblk is grounded.

[0088] The second end of the first detection resistor Ro3 is connected to the anode of the first detection diode D2.

[0089] The cathode of the first detection diode D2 is connected to the drain of the transistor Q to be driven.

[0090] According to one aspect of the present invention, a driving device is provided, the driving device including the aforementioned isolated driving chip with error reporting.

[0091] According to one aspect of the present invention, an electronic device is provided, the electronic device including the aforementioned driving device.

[0092] In one possible implementation, the electronic device includes a power supply device and an electric drive device. This embodiment of the present invention does not limit the specific types of power supply devices and electric drive devices. Those skilled in the art can set them according to actual conditions and needs. For example, power supply devices and electric drive devices may include vehicle chargers, inverters, uninterruptible power supplies (UPS), AC / DC and DC / DC converters, etc.

[0093] Of course, the electronic device can also be other types, and this embodiment of the present invention does not limit the specific type of device.

[0094] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An isolated driver chip with error reporting, characterized in that, The isolation driver chip with error reporting includes: The input-side terminal group includes an error reporting terminal and a signal input terminal. The error reporting terminal is used to output an error reporting signal when an error occurs in the operation of the isolation driver chip with error reporting. The signal input terminal is used to receive data signals. The output-side terminal group includes a power supply terminal and a signal output terminal, wherein the power supply terminal is used to receive a power supply voltage, and the signal output terminal is used to output a drive signal to the gate of the transistor to be driven; An isolation component is disposed between the input-side terminal group and the output-side terminal group.

2. The isolated driver chip with error reporting according to claim 1, characterized in that, The input-side terminal group has three terminals, including one error reporting terminal, one signal input terminal, and a grounding terminal. The output-side terminal group has three terminals, including a first power supply terminal, a second power supply terminal, and a signal output terminal.

3. The isolated driver chip with error reporting according to claim 1, characterized in that, The input-side terminal group has four terminals, including two error reporting terminals and two signal input terminals; The output-side terminal group has four terminals, including a first power supply terminal, a second power supply terminal, a signal output terminal, and a detection terminal.

4. The isolated driver chip with error reporting according to any one of claims 1 to 3, characterized in that, The isolation driver chip with error reporting is also connected to the input-side circuit, which includes a first input resistor, a second input resistor, and a first transistor. The first terminal of the first input resistor and the first terminal of the second input resistor are used to receive the power supply voltage. The second end of the first input resistor is connected to the collector of the first transistor and the signal input terminal, for outputting the data signal. The second terminal of the second input resistor is connected to the error reporting terminal. The base of the first transistor is used to receive the input signal, and the emitter of the first transistor is grounded.

5. The isolated driver chip with error reporting according to claim 1, characterized in that, The power supply terminals include a first power supply terminal and a second power supply terminal. The first power supply terminal is used to receive power supply voltage, and the second power supply terminal is grounded. The isolation driver chip with error reporting is also connected to the output-side circuit, which includes a first output capacitor, a first output resistor, a second output resistor, and a first output diode. The first terminal of the first output capacitor is connected to the signal output terminal. The second terminal of the first output capacitor is connected to the cathode of the first output diode and the first terminal of the first output resistor. The anode of the first output diode is connected to the first terminal of the second output resistor. The second end of the first output resistor and the second end of the second output resistor are connected to the gate of the transistor to be driven.

6. The isolated driver chip with error reporting according to claim 5, characterized in that, The output-side terminal group further includes detection terminals, and the output-side circuit further includes a first detection capacitor, a first detection resistor, and a first detection diode, wherein... The detection terminal is connected to the first end of the first detection capacitor and the first end of the first detection resistor. The second end of the first detection resistor is connected to the anode of the first detection diode. The cathode of the first detection diode is connected to the drain of the transistor to be driven.

7. The isolated driver chip with error reporting according to claim 1, characterized in that, The isolation component is used to achieve electrical isolation and signal transmission between the input side and the output side.

8. A driving device, characterized in that, The driving device includes an isolated driving chip with error reporting as described in any one of claims 1-7.

9. An electronic device, characterized in that, The electronic device includes the driving device as described in claim 8.

10. The electronic device according to claim 9, characterized in that, The electronic device includes a power supply device and an electric drive device.

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