Apparatus and methods for reducing unintended transport of data from power distribution systems using layered power filters
地域：
VA
VA Virginia Beach
摘要
In some embodiments, a method includes receiving, at a circuit board, a power from a power supply. The method further includes filtering, at the circuit board and via a power filter having at least three choke filters, the power to produce a filtered power. The method further includes dividing, at a first portion of a circuit on the circuit board, a power associated with the filtered power into a first power and a second power, a characteristic of the first power differing from a characteristic of the second power by a factor of at least 1.5 or at most one half.
說明書
This application claims priority to and the benefit of U.S. Patent Application No. 62/942,432, filed Dec. 2, 2019 and entitled “Power Distribution System,” which is incorporated herein by reference in its entirety.
The present disclosure relates to the field power distribution systems, and in particular to methods and apparatus related to a circuit board having layered power filters in which the power filters can preclude or reduce unintended and/or intended transport of data from incoming or outgoing power.
Some known electronic circuitry, compute devices, or communication devices can include power distribution systems that are intended to solely distribute power. In some instances, however, electronic components of the electronic circuitry around the power distribution systems can induce data/information in the form of an electric or electromagnetic signal into the power distribution systems. Known power distribution systems do not effectively filter an incoming power to reduce/mitigate such information/data being induced into the power distribution system and out of the electronic circuitry, compute devices or communication devices. Thus, a need exists for power distribution systems with layered power supply filters as described herein, that improve information security and/or operation reliability of the electronic circuitry or digital processing systems.
權(quán)利要求
What is claimed is:1. An apparatus, comprising:a circuit board configured to be coupled to a power supply via a port of the circuit board; a circuit disposed on the circuit board, the circuit including a power bus and a first circuit portion; and a power filter disposed on the circuit board and between the port and the power bus, the power filter having at least three choke filters, the power bus being operatively coupled to the power filter and the first circuit portion, the first circuit portion configured to receive a first power from the power bus at a first point within the first circuit portion and a second power from the power bus at a second point within the first circuit portion, a characteristic of the first power differing from a characteristic of the second power by a factor of at least 1.5 or at most one half. 2. The apparatus of claim 1 , wherein the characteristic of the first power is frequency and the characteristic of the second power is frequency, the frequency of the first power being at least twice the frequency of the second power. 3. The apparatus of claim 1 , wherein the characteristic of the first power is voltage and the characteristic of the second power is voltage, the voltage of the first power being at least twice the voltage of the second power. 4. The apparatus of claim 1 , wherein the characteristic of the first power includes frequency and voltage, the characteristic of the second power includes frequency and voltage, one of the voltage or the frequency of the first power being at least twice the voltage or the frequency, respectively, of the second power. 5. The apparatus of claim 1 , wherein the characteristic of the first power includes frequency and voltage, the characteristic of the second power includes frequency and voltage, the voltage and the frequency of the first power being at least twice the voltage and the frequency, respectively, of the second power. 6. The apparatus of claim 1 , wherein:the circuit includes a second circuit portion mutually exclusive from the first circuit portion, the first circuit portion is operatively coupled between the power bus and the second circuit portion, the second circuit portion configured to receive power from the first circuit portion at a third point and convert the power from the first circuit portion to a third power and a fourth power at a fourth point, a characteristic of the third power differing from a characteristics of the fourth power by a factor of at least 1.5 or at most one half. 7. The apparatus of claim 1 wherein:the first circuit portion includes a first sub-portion and a second sub-portion, the first sub-portion of the first circuit portion including the first point and configured to receive the first power, the second sub-portion of the first circuit portion including the second point and configured to receive the second power, the second circuit portion includes a first sub-portion and a second sub-portion, the first sub-portion of the second circuit including the third point and configured to receive the third power, the second sub-portion of the second circuit including the fourth point and configured to receive the fourth power. 8. The apparatus of claim 1 wherein:the first circuit portion includes a first sub-portion and a second sub-portion, the first sub-portion of the first circuit portion including the first point and configured to receive the first power, the second sub-portion of the first circuit portion including the second point and configured to receive the second power, the second circuit portion includes a first sub-portion and a second sub-portion, the first sub-portion of the second circuit including the third point and configured to receive the third power from the first sub-portion of the first circuit portion, the second sub-portion of the second circuit including the fourth point and configured to receive the fourth power from the first sub-portion of the first circuit portion. 9. The apparatus of claim 7 , wherein:the characteristic of the first power is frequency and the characteristic of the second power is frequency, the frequency of the first power being at least twice the frequency of the second power, the characteristic of the third power is frequency and the characteristic of the fourth power is frequency, the frequency of the third power is at least twice the frequency of the fourth power, the frequency of the fourth power being at least twice the frequency of the second power. 10. A method, comprising:receiving, at a circuit board and via a power filter having at least three choke filters, a power from a power supply; and filtering, at the circuit board, the power to produce a filtered power; dividing, at a first portion of a circuit on the circuit board, a power associated with the filtered power into a first power and a second power, a characteristic of the first power differing from a characteristic of the second power by a factor of at least 1.5 or at most one half. 11. The method of claim 10 , wherein the characteristic of the first power is frequency and the characteristic of the second power is frequency, the frequency of the first power being at least twice the frequency of the second power. 12. The method of claim 10 , wherein the characteristic of the first power is voltage and the characteristic of the second power is voltage, the voltage of the first power being at least twice the voltage of the second power. 13. The method of claim 10 , wherein the characteristic of the first power includes frequency and voltage, the characteristic of the second power includes frequency and voltage, one of the voltage or the frequency of the first power being at least twice the voltage or the frequency, respectively, of the second power. 14. The method of claim 10 , wherein the characteristic of the first power includes frequency and voltage, the characteristic of the second power includes frequency and voltage, the voltage and the frequency of the first power being at least twice the voltage and the frequency, respectively, of the second power. 15. The method of claim 10 , further comprising:dividing, at a second portion of the circuit, a power associated with the second power into a third power and a fourth power, a characteristic of the third power differing from a characteristics of the fourth power by a factor of at least 1.5 or at most one half. 16. An apparatus, comprising:a circuit including an input point and a first circuit portion, the input point configured to receive power that has been filtered by a power filter that (1) received power from a power source and (2) has at least three choke filters, the first circuit portion configured to receive a first power from the input point at a first point within the first circuit portion and a second power from the input point at a second point within the first circuit portion, a characteristic of the first power differing from a characteristic of the second power by a factor of at least 1.5 or at most one half. 17. The apparatus of claim 16 , further comprising:a circuit board including a port, the circuit being disposed with the circuit board, the port of the circuit board operatively coupled to the input point of the circuit and configured to receive the power from the power source. 18. The apparatus of claim 16 , further comprising:a power filter; and a power bus disposed between and operatively coupled to the power filter and the input point of the circuit. 19. The apparatus of claim 16 , wherein the characteristic of the first power is frequency and the characteristic of the second power is frequency, the frequency of the first power being at least twice the frequency of the second power. 20. The apparatus of claim 16 , wherein the characteristic of the first power is voltage and the characteristic of the second power is voltage, the voltage of the first power being at least twice the voltage of the second power. 21. The apparatus of claim 16 , wherein the characteristic of the first power includes frequency and voltage, the characteristic of the second power includes frequency and voltage, one of the voltage or the frequency of the first power being at least twice the voltage or the frequency, respectively, of the second power. 22. The apparatus of claim 16 , wherein the characteristic of the first power includes frequency and voltage, the characteristic of the second power includes frequency and voltage, the voltage and the frequency of the first power being at least twice the voltage and the frequency, respectively, of the second power. 23. The apparatus of claim 16 , wherein:the circuit includes a second circuit portion mutually exclusive from the first circuit portion, the first circuit portion is operatively coupled between the input point and the second circuit portion, the second circuit portion configured to receive power from the first circuit portion at a third point and convert the power from the first circuit portion to a third power and a fourth power at a fourth point, a characteristic of the third power differing from a characteristics of the fourth power by a factor of at least 1.5 or at most one half.
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