CN211698880U

CN211698880U - FPGA series power supply scheme

Info

Publication number: CN211698880U
Application number: CN201922024317.XU
Authority: CN
Inventors: 王川; 王少凡
Original assignee: Shanghai Sugarcane Entropy Microelectronics Co ltd
Current assignee: Shanghai Sugarcane Entropy Microelectronics Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-10-16
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a FPGA series connection power supply scheme, include but not only be limited to the FPGA device, include main supply circuit, shunt circuit and wait to supply power electronic components, be series structure between shunt circuit and the main supply circuit. The utility model discloses a main method adopts a set of shunt module with wait to supply power electronic components parallelly connected to realize voltage control's function, it is parallelly connected with shunt circuit to wait to supply power electronic components, module series connection after parallelly connected plays to insert main supply circuit, the stability of voltage after establishing ties by main supply circuit control these electronic components, heavy current electronic components includes but not only is limited to FPGA, this kind of power supply method includes main supply circuit, shunt circuit and wait to supply power electronic components, connecting circuit respectively with main supply circuit, shunt circuit with wait to supply power the circuit and be connected, this power supply method main device is that it can establish ties to wait to supply power circuit, thereby reduce circuit board area, improve circuit power supply efficiency, reduce the power supply system cost.

Description

FPGA series power supply scheme

Technical Field

The utility model belongs to the technical field of electron electricity and specifically relates to FPGA series connection power supply scheme, specifically speaking are FPGA series connection power supply circuit.

Background

The field of electronic communication and calculation, the traditional 12V power supply system needs to be converted into low voltage to be used by a chip, generally 5V-1V voltage, and when the system needs a plurality of FPGA or other heavy current chips, the parallel connection is generally adopted, the system power supply cost can be obviously increased, if a general series power supply method is adopted, a linear voltage stabilizer is needed to stabilize the voltage at two ends of the chip to be supplied with power, the traditional linear voltage stabilizer needs to be connected with an electronic component to be supplied with power in series, so that the purpose of adjusting the power supply voltage of the electronic component to be supplied with power is realized, and the linear voltage stabilizer needs to bear larger current, so the cost of the traditional series power supply scheme.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not enough of existence among the prior art, provide and be used for FPGA to establish ties power supply scheme, its simple structure, reasonable in design.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

FPGA series connection power supply scheme, including main power supply circuit (1), treat power supply electronic components (3), treat that power supply electronic components (3) include FPGA (5), treat to be the series structure between power supply electronic components (3) and main power supply circuit (1), a plurality of equidistant series connection of power supply electronic components (3), the both sides of treating power supply electronic components (3) are parallelly connected to have shunt circuit (2), shunt circuit (2) are for treating power supply electronic components (3) for split structure, the inside of shunt circuit (2) comprises MOSFET (4) and operational amplifier (6), the one end of FPGA (5) is provided with control signal, the one end of MOSFET (4) and FPGA (5) is connected with operational amplifier (6).

Furthermore, a plurality of the electronic components (3) to be powered are connected in series and powered by one power supply, and the number of the electronic components (3) to be powered is any value between two and one hundred.

Further, the gate of the MOSFET (4) is controlled by the output of an operational amplifier (6), the output of the operational amplifier (6) controlling the gate of the MOSFET (4).

Compared with the prior art, the utility model, have following advantage:

1) the utility model discloses a main method adopts a set of shunt module with wait to supply power electronic components parallelly connected to realize voltage control's function, its main advantage lies in waiting to supply power electronic components and parts parallelly connected with shunt circuit, module series connection after parallelly connected plays to insert main supply circuit, the stability of voltage after establishing ties by these electronic components of main supply circuit control, heavy current electronic components includes but not only is limited to FPGA, this kind of power supply method includes main supply circuit, shunt circuit and wait to supply power electronic components, connecting circuit respectively with main supply circuit, shunt circuit and wait that supply circuit is connected, this power supply method main device is that it can establish ties to wait to supply power circuit, thereby reduce circuit board area, improve circuit power supply efficiency, reduce the power supply system cost.

2) The utility model discloses use FPGA power supply system as an example, traditional FPGA circuit board design is shown in fig. 2, and in traditional FPGA design, a power supply circuit, one set of power supply unit of many FPGA sharing, sharing low level between the FPGA, parallelly connected topological structure expands easily, easy to maintain, and when FPGA increases in quantity, power supply cost linear increase adopts the utility model discloses a power supply method, one set of power supply system can hold 12 FPGA or other heavy current chips at least to show reduce cost.

3) The utility model discloses the structure is shown in fig. 1, treat after power supply electronic components adds shunt circuit, it connects main supply circuit equipment to establish ties, compare with parallelly connected power supply mode, shunt circuit can release owing to treat the different electric current that leads to of power supply electronic components consumption different, thereby make and treat that power supply electronic components both ends voltage satisfies the power supply requirement of its work, the influence that the fluctuation of filtering power brought, thereby realize the purpose of steady voltage, the parallelly connected power supply mode of relative tradition, save the overcurrent ability requirement to main supply circuit by a wide margin, thereby reduce system cost.

Compare with general series connection power supply mode, equally need voltage stabilizing circuit to stabilize and treat power supply electronic components both ends voltage, traditional series connection power supply need with linear voltage regulator with treat power supply electronic components equipment and establish ties, and it is higher to linear voltage regulator overcurrent ability requirement, the utility model discloses a this problem has been solved to the method of earial drainage to the lower circuit of use cost realizes stabilizing the purpose of power supply equipment both ends voltage, has reduced the use of extra device, thereby the cost is reduced.

4) The utility model discloses a MOSFET device calculates the difference of waiting to supply power electronic components both ends voltage and target voltage, feeds back to bleeder device FPGA to make shunt circuit both ends electric current produce the change, visible this utility model, the function is practical, is fit for being extensively promoted.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of a conventional FPGA circuit board design structure.

Fig. 3 is a schematic diagram of the internal structure of the shunt circuit of the present invention.

Fig. 4 is the circuit connection structure diagram of the shunt circuit and the FPGA waiting for power supply of the present invention.

In the figure: 1. a main power supply circuit; 2. a shunt circuit; 3. an electronic component to be powered; 4. a MOSFET; 5. An FPGA; 6. an operational amplifier.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 4, the FPGA serial power supply scheme includes a main power supply circuit 1, an electronic component 3 to be powered, and an FPGA5, where the FPGA5 is a specific implementation manner of the electronic component 3 to be powered, but the electronic component 3 to be powered is not limited to the FPGA5, and is characterized in that: treat to supply power between electronic components 3 and the main power supply circuit 1 for series structure, a plurality of electronic components 3 equidistant series connection of waiting to supply power, the both sides of waiting to supply power electronic components 3 are parallelly connected to have shunt circuit 2, shunt circuit 2 is for waiting to supply power electronic components 3 for split structure, shunt circuit 2's inside comprises MOSFET4 and operational amplifier 6, FPGA 5's one end is provided with control signal, MOSFET4 and FPGA 5's one end is connected with operational amplifier 6.

As shown in fig. 1, a plurality of electronic components 3 to be powered are connected in series and powered by one power supply, and the number of the plurality of electronic components 3 to be powered is any value between two and one hundred.

As shown in fig. 4, wherein the gate of the MOSFET4 is controlled by the output of the operational amplifier 6, the output of the operational amplifier 6 controls the gate of the MOSFET 4.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

FPGA series power supply scheme, including main supply circuit (1), treat power supply electronic components (3), treat that power supply electronic components (3) include FPGA (5), its characterized in that: treat for series connection structure between power supply electronic components (3) and main power supply circuit (1), a plurality of equidistant series connection of power supply electronic components (3) of treating, the both sides of treating power supply electronic components (3) are parallelly connected to have shunt circuit (2), shunt circuit (2) are removable structure for treating power supply electronic components (3), the inside of shunt circuit (2) comprises MOSFET (4) and operational amplifier (6), the one end of FPGA (5) is provided with control signal, the one end of MOSFET (4) and FPGA (5) is connected with operational amplifier (6).
2. The FPGA series power supply scheme of claim 1, wherein: a plurality of wait to supply power and establish ties and adopt a power supply between the electronic components (3), it is a plurality of wait to supply power the quantity of electronic components (3) and be two to the arbitrary numerical value between the hundred.
3. The FPGA series power supply scheme of claim 2, wherein: the gate of the MOSFET (4) is controlled by the output of an operational amplifier (6), the output of the operational amplifier (6) controlling the gate of the MOSFET (4).