Fault detection on a dual supply system for a universal serial b

Details Fault detection on a dual supply system for a universal serial b Fault detection on a dual supply system for a universal serial b

1997-08-25

1999-12-07

Heckler, Thomas M.

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

713340, G06F 1122

Patent

active

060000422

ABSTRACT:
A method and apparatus for a dual power supply on a universal serial bus system using an overcurrent detect circuit. Dual power supplies in the universal serial bus system allows for greater flexibility of operation and is based on two separate power systems. The first power system is achieved using the power line on the bus connecting to the universal serial bus controller. The second power system is a separate power supply to power the downstream ports. Moreover, the universal serial bus system has an overcurrent and thermal error detect circuit based on the power system in order to achieve an efficient and cost effective method and apparatus in which to notify the universal serial bus controller of any error in the power system.

REFERENCES:
patent: 5675813 (1997-10-01), Holmdahl
patent: 5884086 (1999-03-01), Amoni et al.
"Micrel MIC2525 USB High-Side Power Switch Advance Information" (4 sheets).
"Micrel MIC2526 Dual USB High-Side Power Switch Advance Information" (6 sheets).
Solectron Texas Logic Diagram TUSBK7HUB (5 sheets).
Solectron Texas Logic Diagram TUSBK4HUB (4 sheets).
Solectron Texas Blueprint 9806020-001 C (2 sheets).
Solectron Texas Logic Diagram (5 sheets); Jul. 17, 1997.
Texas Instruments Manual entitled "SN75240 Dual Universal Serial Bus Port Transient Suppressor;" pp. 1-4; Feb. 1997.
Texas Instruments Manual entitled "TPS7101Q, TPS7133Q, TPS7148Q, TPS7150Q, TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y Low-Droput Voltage Regulators;" pp. 1-14, 18-32; Jan. 1997.
Texas Instruments Manual entitled "TPS2010, TPS2011, TPS2012, TPS2013, TPS2010Y Power-Distribution Switches;" pp. 6-1 through 6-18; Aug. 1995.
Solectron Texas Blueprints (9 sheets); 1996-1997.
Texas Instruments Manual entitled "TUSB2140 Data Manual--4-Port Hub With an Embedded Function for the Universal Serial Bus;" pp. iii through B-2 (63 sheets); Nov. 1997.
Texas Instruments Manual entitled "TUSB2040 4-Port Hub for the Universal Serial Bus;" pp. 1-13; Aug. 1997.
Texas Instruments Manual entitled "TUSB2070 7-Port Hub for the Universal Serial Bus;" pp. 1-12; Aug. 1997.
Intel brochure regarding USB Family Evaluation Board (2 sheets); 1998.
Intel Manual entitled "8x931HA USB Customer Hub Preliminary Datasheet;" pp. 1-12; Nov. 1997.
Intel Manual entitled "Advance Information--8x930Hx Universal Serial Bus Hub Peripheral Controller;" pp. iii-33; May 1997.
Cherry Electrical Products brochure regarding G80-3000HXMUS Keyboard; Aug. 29, 1997.
Belkin brochure regarding Express Bus.TM. Hub; undated.
CATC brochure regarding Andromeda.TM. USB Hub and Orion.TM. self-powered USB Hub; (2 sheets); undated.
National Semiconductor Manual entitled "USBN9602 (Universal Serial Bus) Full Speed Function Controller With DMA Support;" pp. 1-43; Nov. 1997.
Manual entitled "Universal Serial Bus Specification" Revision 1.0; pp. 1-10, 217-268; Jan. 15, 1996.
Texas Instruments Manual entitled "TPS2014, TPS2015 Power Distribution Switches;" pp. 1-21; Aug. 1997.
Solectron Texas Blueprints (9 sheets); 1996-1997.
Texas Instruments Manual entitled "(EVM) Evaluation Module Documentation--TUSBEM 2140 (USB 4-Port Hub & I.sup.2 C Interface)" (11 sheets); Aug. 1, 1997.
Logic Diagram for TUSB2040 (4 sheets).
Logic Diagram for TUSB2070 (5 sheets).

Affiliated with

Also associated with

Rating

Fault detection on a dual supply system for a universal serial b does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fault detection on a dual supply system for a universal serial b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fault detection on a dual supply system for a universal serial b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-836797