초록 ▼

A method and system for providing computer system for use in a network having a plurality of computer systems linked in a chain is disclosed. The method and system include providing a power supply, at least one input and at least one output for the computer system. The at least one input is for rece

A method and system for providing computer system for use in a network having a plurality of computer systems linked in a chain is disclosed. The method and system include providing a power supply, at least one input and at least one output for the computer system. The at least one input is for receiving power from a first portion of the plurality of computer systems and for providing power from the power supply to the first portion of the plurality of computer systems. The at least one output is for providing power from the power supply to a second portion of the plurality of computer systems and for receiving power from the second portion of the plurality of computer systems. In one aspect, the first portion of the plurality computer systems includes an upstream computer system and the second portion of the plurality computer systems includes a downstream computer system. In this aspect, the method and system also includes providing an input power control circuit and reverse current protection circuits for the computer system. The input power control circuit is coupled with the at least one input and is for controlling power provided to the computer system such that power is input to the computer system when the power supply does not function.

대표청구항 ▼

1. A computer system for use in a network having a plurality of computer systems linked in a chain, the computer system comprising:a power supply;at least one input for receiving power from a first portion of the plurality of computer systems and providing power from the power supply to the first po

1. A computer system for use in a network having a plurality of computer systems linked in a chain, the computer system comprising:a power supply;at least one input for receiving power from a first portion of the plurality of computer systems and providing power from the power supply to the first portion of the plurality of computer systems;at least one output for providing power from the power supply to a second portion of the plurality of computer systems and for receiving power from the second portion of the plurality of computer systems; anda first noise control circuit coupled with the at least one input or the at least one output, the first noise control circuit for controlling noise from an upstream computer system or a downstream computer system and including a first inductor coupled in parallel with a first capacitor. 2. The computer system of claim 1 wherein the at least one input is capable of receiving power from the upstream computer system and providing power to the upstream computer system and wherein the at least one output is capable of providing power to a downstream computer system and receiving power from the downstream computer system. 3. The computer system of claim 1 further comprising:an input power control circuit coupled with the at least one input and with the at least one output for controlling power provided to the computer system. 4. The computer system of claim 3 wherein the computer system is coupled to an upstream computer system and to a downstream computer system and wherein the input power control circuit further includes:a second noise control circuit coupled with the at least one output, the second noise control circuit for controlling noise from the downstream computer system andwherein the first noise control circuit is coupled with the at least one input and is for controlling noise from the upstream computer system only. 5. The computer system of claim 3 wherein the input power control circuit further includes a first diode coupled with the upstream computer system, a second diode coupled with the downstream computer system, a third diode coupled with the power supply and an OR having a plurality of inputs, the plurality of inputs to the OR being coupled with the first diode, the second diode and the third diode. 6. A computer system for use in a network having a plurality of computer systems linked in a chain, the computer system comprising:a power supply;at least one input for receiving power from a first portion of the plurality of computer systems and providing power from the power supply to the first portion of the plurality of computer systems;at least one output for providing power from the power supply to a second portion of the plurality of computer systems and for receiving power from the second portion of the plurality of computer systems; andan input power control circuit coupled with the at least one input and with the at least one output for controlling power provided to the computer system, wherein the input power control circuit further includes a first noise control circuit coupled with the at least one input and a second noise control circuit coupled with the at least one input, the first noise control circuit for controlling noise from an upstream computer system connected with the computer system and the second noise control circuit for controlling noise from a downstream computer system connected with the computer system;wherein the first noise control circuit further includes a first inductor coupled in parallel with a first capacitor wherein the second noise control circuit includes a second inductor coupled in parallel with a second capacitor. 7. The computer system of claim 6, further including a first reverse current protection circuit coupled with the at least one input and the power supply; and a second reverse current protection circuit coupled with the at least one output and the power supply. 8. The computer system of claim 7, wherein the first reverse c urrent protection circuit further includes a first pi filter for filtering noise from the at least one input and a first thermistor for protecting against damage due to an overcurrent and wherein the second reverse current protection circuit further includes a second pi filter for filtering noise from the at least one output and a second thermistor for protecting against damage due to an overcurrent. 9. A computer system for use in a network having a plurality of computer systems linked in a chain, the computer system comprising:a power supply;at least one input coupled with the power supply, the at least one input for receiving power from an upstream computer system of the plurality of computer systems upstream in the chain and for providing power to the upstream computer system;at least one output coupled with the power supply, the at least one output for providing power to a downstream computer system of the plurality of computer systems upstream in the chain and for providing power to the downstream computer system of the plurality of computer systems;an input power control circuit coupled with the at least one input and with the at least one output, the input power control circuit for controlling power provided to the computer system such that power is input to the computer system when the power supply does not function;a first reverse current control circuit coupled with the at least one input; a second reverse current control circuit coupled with the at least one output; anda first noise control circuit coupled with the at least one input or the at least one output, the first noise control circuit for controlling noise from an upstream computer system or a downstream computer system and including a first inductor coupled in parallel with a first capacitor. 10. A network comprising:a plurality of computer systems chained together, each of the plurality of computer systems including a power supply, at least one input and at least one output, the at least one input for receiving power from a first portion of the plurality of computer systems and providing power from the power supply to the first portion of the plurality of computer systems and the at least one output for providing power from the power supply to a second portion of the plurality of computer systems and for receiving power from the second portion of the plurality of computer systems;wherein each of the plurality of computer systems further includes a first noise control circuit coupled with the at least one input or the at least one output, the first noise control circuit for controlling noise from an upstream computer system or a downstream computer system and including a first inductor coupled in parallel with a first capacitor. 11. A method for providing power to a computer system for use in a network having a plurality of computer systems linked in a chain, the computer system including a power supply, at least one input and at least one output, the method comprising the steps of:(a) receiving power from a first portion of the plurality of computer systems through the input and receiving power from a second portion of the plurality of computer systems through the output if the power supply of the computer system does not provide power to the computer system;(b) providing power from the power supply to the first portion of the plurality of computer systems through the input if the first portion of the plurality of computer systems does not have power; and(c) providing power for the power supply to a second portion of the plurality of computer systems through the output if the second portion of the plurality of computer systems does not have power;wherein the computer system further includes a first noise control circuit coupled with the at least one input or the at least one output, the first noise control circuit for controlling noise from an upstream computer system or a downstream computer system and including a first inductor coupled in parallel with a first capacitor. 12. The method of claim 11 wherein the first portion of the plurality of computer systems includes the upstream computer system and wherein the second portion of the plurality of computer systems includes a downstream computer system. 13. The method of claim 11 wherein the power receiving step (a) further includes the step of receiving power through an input power control circuit coupled with the at least one input and with the at least one output, the input power control circuit for controlling power provided to the computer system. 14. The method of claim 13 wherein the input power control circuit further includes:a second noise control circuit coupled with the at least one input, the second noise control circuit for controlling noise from the downstream computer system; andwherein the first noise control circuit is coupled with the at least one input and is for controlling noise from the upstream computer system only. 15. A method for providing power to a computer system for use in a network having a plurality of computer systems linked in a chain, the computer system including a power supply, at least one input and at least one output, the method comprising the steps of:(a) receiving power from a first portion of the plurality of computer systems through the input and receiving power from a second portion of the plurality of computer systems through the output if the power supply of the computer system does not provide power to the computer system, wherein the power receiving step (a) further includes the step of receiving power through an input power control circuit coupled with the at least one input and with the at least one output, the input power control circuit for controlling power provided to the computer system;(b) providing power from the power supply to the first portion of the plurality of computer systems through the input if the first portion of the plurality of computer systems does not have power; and(c) providing power for the power supply to a second portion of the plurality of computer systems through the output if the second portion of the plurality of computer systems does not have power;wherein the computer system further includes a second noise control circuit coupled with the at least one input, the second noise control circuit for controlling noise from the downstream computer system;wherein the first noise control circuit further includes a first capacitor coupled in parallel with a first inductor; andwherein the second noise control circuit includes a second capacitor coupled in parallel with a second inductor. 16. The method of claim 15 wherein upstream power providing step (b) further includes the step of:(b1) providing power to the upstream computer system through a first reverse current protector coupled with the first noise control circuit and the power supply. 17. The method of claim 16 wherein the downstream power providing step (c) further includes the step of:(c1) providing power to the downstream computer system through a second reverse current protector coupled with the second noise control circuit and the power supply. 18. The system of claim 17 wherein the first reverse current protection circuit further includes a first pi filter for filtering noise from the at least one input and a first thermistor for protecting against damage due to an overcurrent and wherein the second reverse current protection circuit further includes a second pi filter for filtering noise from the at least one output and a second thermistor for protecting against damage due to an overcurrent. 19. The method of claim 15 wherein the input power control circuit further includes a first diode coupled with the upstream computer system, a second diode coupled with the downstream computer system, a third diode coupled with the power supply and an OR having a plurality of inputs, the plurality of inputs to the OR being coupled with the first diode, the second diode and the third diode.