CN212620857U - Intelligent driving chip - Google Patents
Intelligent driving chip Download PDFInfo
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- CN212620857U CN212620857U CN202021247519.7U CN202021247519U CN212620857U CN 212620857 U CN212620857 U CN 212620857U CN 202021247519 U CN202021247519 U CN 202021247519U CN 212620857 U CN212620857 U CN 212620857U
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Abstract
The utility model relates to an integrated circuit technical field discloses an intelligent drive chip, include: the device comprises a signal input module, a logic processing module, a temperature detection module, a driving module and a current detection module; the first end of the signal input module receives an input signal, the second end of the signal input module is connected with the first end of the logic processing module, the second end of the logic processing module is connected with the first end of the driving module, the third end of the logic processing module is connected with the first end of the temperature detection module, the second end of the driving module is connected with an external load, the third end of the driving module is connected with the first end of the current detection module, the second end of the current detection module is connected with an external circuit, and the second end of the temperature detection module is connected with the external circuit.
Description
Technical Field
The utility model relates to an integrated circuit technical field, concretely relates to intelligence driver chip.
Background
At present, a high-power driving scheme mainly adopts an external power tube, only has a power driving function and does not have a power tube temperature detection function, and power driving current detection needs to be realized through a series power resistor, so that the cost is high, the efficiency is reduced, and the function is completed by adding a peripheral circuit in the aspect of control.
This results in low integration, occupies a large space and volume, and is expensive to manufacture.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model discloses an intelligence driver chip aims at improving the integrated level, reduce cost.
The utility model discloses a following technical scheme realizes:
the utility model discloses an intelligence driver chip, include:
the device comprises a signal input module, a logic processing module, a temperature detection module, a driving module and a current detection module;
the first end of the signal input module receives an input signal, the second end of the signal input module is connected with the first end of the logic processing module, the second end of the logic processing module is connected with the first end of the driving module, the third end of the logic processing module is connected with the first end of the temperature detection module, the second end of the driving module is connected with an external load, the third end of the driving module is connected with the first end of the current detection module, the fourth end of the driving module is connected with the second end of the temperature detection module, the second end of the current detection module is connected with an external circuit, and the third end of the temperature detection module is connected with the external circuit.
Optionally, for the intelligent driving chip, the current detection module includes a current mirror.
Optionally, for the intelligent driving chip, the current detection module includes a first transistor M1, gates of second transistors M2, M1 and M2 are all connected to a core voltage, drains are connected to each other, a source of M1 is grounded, a source of M2 is grounded through a resistor, and a detection voltage is output from a source of M2.
Optionally, for the intelligent driving chip, the second terminal of the current detection module and the third terminal of the temperature detection module are connected to different external circuits.
Optionally, for the intelligent driving chip, the second end of the current detection module and the third end of the temperature detection module are connected to different input ends of the same external circuit.
The beneficial effects of the utility model include at least:
the temperature detection module, the driving module and the current detection module are integrated, and the temperature feedback and the current feedback are realized, so that the circuit control capability can be enhanced, and the manufacturing cost is reduced; the temperature of the power tube of the power driving circuit can be detected more accurately, and the efficiency is improved.
In addition, the current mirror image technology is adopted to detect the current of the driving module, so that the power consumption can be greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic block diagram of an intelligent driver chip according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the current detection module according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
The embodiment discloses an intelligent driving chip as shown in fig. 1, which includes the following contents:
the device comprises a signal input module, a logic processing module, a temperature detection module, a driving module and a current detection module;
the first end of the signal input module receives an input signal, the second end of the signal input module is connected with the first end of the logic processing module, the second end of the logic processing module is connected with the first end of the driving module, the third end of the logic processing module is connected with the first end of the temperature detection module, the second end of the driving module is connected with an external load, the third end of the driving module is connected with the first end of the current detection module, the fourth end of the driving module is connected with the second end of the temperature detection module, the second end of the current detection module is connected with an external circuit, and the third end of the temperature detection module is connected with the external circuit.
The intelligent driving chip of the embodiment is a power driving device and can be used for driving a direct current motor, a three-phase direct current motor, an LED and the like.
The intelligent driving chip of the embodiment has two paths of input signals, one path of driving output, one path of temperature voltage signal output and one path of driving current signal output. Correspondingly, two input signals are input to two receiving positions at the first end of the signal input module. The driving output is a signal output by the driving module, the temperature voltage signal output is a signal output by the temperature detection module, and the driving current signal output is an output signal of the current detection module.
The logic processing module enables the driving module to operate according to the received input signal, such as dc motor driving, three-phase dc motor driving, LED driving, etc., and the driving module is well known to those skilled in the art and will not be described in detail herein.
The temperature detection module can detect the temperature of a power tube of a power driving circuit in the driving module in real time, feed the temperature back to the logic processing module and output a temperature voltage signal to the outside.
The current detection module may detect a current condition of the driving module in real time to enhance a control capability of the driving module, for example, the driving module may output a driving current signal to the outside, so that an external input signal may be adjusted accordingly to change an input signal received by the signal input module.
In the embodiment, the temperature detection module, the driving module and the current detection module are integrated, and the temperature feedback and the current feedback are provided, so that the circuit control capability can be enhanced, and the manufacturing cost can be reduced; the temperature of the power tube of the power driving circuit in the driving module can be detected more accurately, and the efficiency is improved.
Example 2
The present embodiment can be further implemented on the basis of embodiment 1, and specifically, referring to fig. 2, the current detection module includes a current mirror.
Specifically, the first transistor M1, the second transistor M2, the gates of M1 and M2 are all connected to a core voltage (pre _ driver), the drains are connected to each other, the source of M1 is grounded, the source of M2 is grounded through a resistor Rsen, and the source of M2 outputs a sensing voltage (Vsen).
Example 3
The present embodiment may be further improved on the basis of embodiment 1 or embodiment 2, and the present embodiment mainly includes:
and the second end of the current detection module and the third end of the temperature detection module are connected with different external circuits.
For example, according to actual requirements, the driving circuit and the temperature feedback circuit connected to the outside may be used, and different external circuits may be adapted to respectively realize driving mirror current signal output and temperature voltage signal output.
Example 4
The present embodiment may be further improved on the basis of embodiment 1 or embodiment 2, and the present embodiment mainly includes:
and the second end of the current detection module and the third end of the temperature detection module are connected with different input ends of the same external circuit.
For example, according to actual requirements, the current signal input end and the temperature signal input end can be connected to the same external circuit respectively.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled 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 depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. An intelligent driving chip, comprising:
the device comprises a signal input module, a logic processing module, a temperature detection module, a driving module and a current detection module;
the first end of the signal input module receives an input signal, the second end of the signal input module is connected with the first end of the logic processing module, the second end of the logic processing module is connected with the first end of the driving module, the third end of the logic processing module is connected with the first end of the temperature detection module, the second end of the driving module is connected with an external load, the third end of the driving module is connected with the first end of the current detection module, the fourth end of the driving module is connected with the second end of the temperature detection module, the second end of the current detection module is connected with an external circuit, and the third end of the temperature detection module is connected with the external circuit.
2. The smart driver chip of claim 1, wherein the current detection module comprises a current mirror.
3. The smart driver chip of claim 2, wherein the current detection module comprises a first transistor M1, a second transistor M2, M1 and M2 having their gates connected to a core voltage, their drains connected to each other, their M1 sources connected to ground, their M2 sources connected to ground through a resistor, and their M2 sources outputting the detection voltage.
4. The intelligent driving chip according to claim 1, wherein the second terminal of the current detection module and the third terminal of the temperature detection module are connected to different external circuits.
5. The intelligent driving chip according to claim 1, wherein the second terminal of the current detection module and the third terminal of the temperature detection module are connected to different input terminals of the same external circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021247519.7U CN212620857U (en) | 2020-06-30 | 2020-06-30 | Intelligent driving chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021247519.7U CN212620857U (en) | 2020-06-30 | 2020-06-30 | Intelligent driving chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212620857U true CN212620857U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021247519.7U Active CN212620857U (en) | 2020-06-30 | 2020-06-30 | Intelligent driving chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212620857U (en) |
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2020
- 2020-06-30 CN CN202021247519.7U patent/CN212620857U/en active Active
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Denomination of utility model: An Intelligent Driver Chip Effective date of registration: 20230329 Granted publication date: 20210226 Pledgee: Bank of Communications Ltd. Wuxi branch Pledgor: NST TECHNOLOGY LIMITED Co.,Ltd. Registration number: Y2023980036794 |