CN105262060A - Overload control module for FPGA chip - Google Patents
Overload control module for FPGA chip Download PDFInfo
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- CN105262060A CN105262060A CN201510705961.7A CN201510705961A CN105262060A CN 105262060 A CN105262060 A CN 105262060A CN 201510705961 A CN201510705961 A CN 201510705961A CN 105262060 A CN105262060 A CN 105262060A
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- module
- current
- sampling
- overcurrent protection
- overload control
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Abstract
The present invention discloses an overload control module for an FPGA chip. The overload control module comprises a current sampling module, a sampling current analysis module, a current adjustment module, an overcurrent detection module and an overcurrent protection module. Current flows into the current sampling module, then the current sampling module is connected to the sampling current analysis module, the current adjustment module and the overcurrent detection module respectively, the sampling current analysis module is connected to the current adjustment module, the overcurrent detection module is connected to the overcurrent protection module, the current adjustment module is connected to the overcurrent protection module, and finally the current is outputted from the overcurrent protection module. The overload control module has the advantages that with a current sampling part, a sampling current analysis part and a current adjustment part, the current can be adjusted in real time, and with an overcurrent detection part and an overcurrent protection part, a device is protected from being burned in sudden large current.
Description
Technical field
The invention belongs to fpga chip field, particularly a kind of overload control module for fpga chip.
Background technology
FPGA (Field-ProgrammableGateArray), i.e. field programmable gate array, it is the product further developed on the basis of the programming devices such as PAL, GAL, CPLD.It occurs as a kind of semi-custom circuit in application-specific integrated circuit (ASIC) (ASIC) field, has both solved the deficiency of custom circuit, overcomes again the shortcoming that original programming device gate circuit number is limited.
Because function needs increasing Sensitive Apparatus or original paper for fpga chip, these devices and original paper too sensitivity just need better overload control technique.
Summary of the invention
The present invention seeks to solve the problem, provide a kind of by sampling current, then a kind of overload control module for fpga chip of analysis result adjustment electric current.
Overload control module for fpga chip of the present invention, comprises current sampling module, sampling current analysis module, current adjusting module, over-current detection module and overcurrent protection module; Electric current inflow current sampling module; then current sampling module is connected with over-current detection module with sampling current analysis module, current adjusting module respectively; sampling current analysis module is connected with current adjusting module again; over-current detection module is connected with overcurrent protection module again; current adjusting module is connected with overcurrent protection module again, and electric current finally exports from overcurrent protection module.
Preferably, described sampling current analysis module comprises analog to digital converter and signal contrast module.
Preferably, described current adjusting module is electric current apparatus for regulating.
Preferably, described over-current detection module presets variable resistor and contrast IC.
Preferably, described overcurrent protection module is electronic switch.
Beneficial effect of the present invention: have current sampling part, sampling current analysis part and current adjustment portion, adjustment electric current that can be real-time, has over-current detection part and overcurrent protection part, protection device can not burnt when sudden big current.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the invention will be further elaborated.
As shown in Figure 1, the overload control module of GA chip.
Overload control module for fpga chip of the present invention, comprises current sampling module, sampling current analysis module, current adjusting module, over-current detection module and overcurrent protection module; Electric current inflow current sampling module; then current sampling module is connected with over-current detection module with sampling current analysis module, current adjusting module respectively; sampling current analysis module is connected with current adjusting module again; over-current detection module is connected with overcurrent protection module again; current adjusting module is connected with overcurrent protection module again, and electric current finally exports from overcurrent protection module.Described sampling current analysis module comprises analog to digital converter and signal contrast module.Described current adjusting module is electric current apparatus for regulating.Described over-current detection module presets variable resistor and contrast IC.Described overcurrent protection module is electronic switch.
Current sampling module samples to the electric current of fpga chip loading, then sampling current exports to sampling current analysis module, current adjusting module and overcurrent monitoring module, when sampling current is transported to sampling current analysis module time, sampling current is carried out voltage transitions by sampling current analysis module, then analog-to-digital conversion is carried out, signal after conversion is analyzed, and analysis result exports to current adjusting module, and current adjusting module adjusts loading current according to analysis result by field effect transistor; When sampling current is transported to over-current detection module time; over-current detection module contrast current limliting predeterminated voltage and sampling current; when sampling current exceedes cut-off current; described over-current detection module output LOW voltage is to overcurrent protection module; when the low-voltage of overcurrent detection module is transported to overcurrent protection module time; overcurrent protection module can drag down the driving voltage of electronic switch, and electronic switch is disconnected thus protection device.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present invention, should be understood to that protection scope of the present invention is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from essence of the present invention according to these technology enlightenment disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.
Claims (5)
1. for an overload control module for fpga chip, it is characterized in that: comprise current sampling module, sampling current analysis module, current adjusting module, over-current detection module and overcurrent protection module; Electric current inflow current sampling module; then current sampling module is connected with over-current detection module with sampling current analysis module, current adjusting module respectively; sampling current analysis module is connected with current adjusting module again; over-current detection module is connected with overcurrent protection module again; current adjusting module is connected with overcurrent protection module again, and electric current finally exports from overcurrent protection module.
2., as claimed in claim 1 for the overload control module of fpga chip, it is characterized in that: described sampling current analysis module comprises analog to digital converter and signal contrast module.
3., as claimed in claim 1 for the overload control module of fpga chip, it is characterized in that: described current adjusting module is electric current apparatus for regulating.
4. as claimed in claim 1 for the overload control module of fpga chip, it is characterized in that: described over-current detection module presets variable resistor and contrast IC.
5., as claimed in claim 1 for the overload control module of fpga chip, it is characterized in that: described overcurrent protection module is electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510705961.7A CN105262060A (en) | 2015-10-26 | 2015-10-26 | Overload control module for FPGA chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510705961.7A CN105262060A (en) | 2015-10-26 | 2015-10-26 | Overload control module for FPGA chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105262060A true CN105262060A (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510705961.7A Pending CN105262060A (en) | 2015-10-26 | 2015-10-26 | Overload control module for FPGA chip |
Country Status (1)
| Country | Link |
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| CN (1) | CN105262060A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458724A (en) * | 2003-05-06 | 2003-11-26 | 张步学 | Voltage regulator with high performance overcurrent protection |
| CN202888788U (en) * | 2012-11-08 | 2013-04-17 | 北京经纬恒润科技有限公司 | Overcurrent protection circuit and switching power supply |
| US20130120891A1 (en) * | 2011-11-14 | 2013-05-16 | Texas Instruments Incorporated | Systems and Methods of Over-Load Protection with Voltage Fold-Back |
| US20140362478A1 (en) * | 2013-06-07 | 2014-12-11 | Asustek Computer Inc. | Power system and short-circuit protection circuit thereof |
| CN205039528U (en) * | 2015-10-26 | 2016-02-17 | 成都辰来科技有限公司 | A overload control module for FPGA chip |
-
2015
- 2015-10-26 CN CN201510705961.7A patent/CN105262060A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458724A (en) * | 2003-05-06 | 2003-11-26 | 张步学 | Voltage regulator with high performance overcurrent protection |
| US20130120891A1 (en) * | 2011-11-14 | 2013-05-16 | Texas Instruments Incorporated | Systems and Methods of Over-Load Protection with Voltage Fold-Back |
| CN202888788U (en) * | 2012-11-08 | 2013-04-17 | 北京经纬恒润科技有限公司 | Overcurrent protection circuit and switching power supply |
| US20140362478A1 (en) * | 2013-06-07 | 2014-12-11 | Asustek Computer Inc. | Power system and short-circuit protection circuit thereof |
| CN205039528U (en) * | 2015-10-26 | 2016-02-17 | 成都辰来科技有限公司 | A overload control module for FPGA chip |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160120 |