Abstract: A universal circuit design environment that designs universal circuits that can be applied to a variety of applications is disclosed. The system cross-references attribute requirements of each contemplated application against components to select application set components that are used to populate the universal design circuit environment for use in a universal circuit design. The set components are capable of satisfying every resolvable attribute requirement of the variety of applications, and the universal circuit may be designed with specialized inputs to set some attributes of the universal circuit. Preferably, the footprint of each set component and universal circuit is preserved between versions to allow for optimized updating between component versions.

Abstract: A universal circuit design environment that designs universal circuits that can be applied to a variety of applications is disclosed. The system cross-references attribute requirements of each contemplated application against components to select application set components that are used to populate the universal design circuit environment for use in a universal circuit design. The set components are capable of satisfying every resolvable attribute requirement of the variety of applications, and the universal circuit may be designed with specialized inputs to set some attributes of the universal circuit. Preferably, the footprint of each set component and universal circuit is preserved between versions to allow for optimized updating between component versions.

Abstract: An information handling system having a modular DC-DC standby power converter with programmable sequencing. The modular DC-DC standby power converter comprises a plurality of DC inputs and a plurality of DC outputs. The modular DC-DC standby power converter may also be bypassed and/or put into an off-state such that a voltage(s) of at least one output of the converter may then be the same voltage(s) of at least one input. When the modular DC-DC standby power converter is bypassed and/or in the off-state, its outputs may be at a high impedance. The output voltage(s) may be adjusted for specific system requirements. Turn-on and turn-off sequencing of the output voltage(s) may be programmed. The modular DC-DC standby power converter may have short circuit protection.

Abstract: An information handling system having a modular DC-DC standby power converter with programmable sequencing. The modular DC-DC standby power converter comprises a plurality of DC inputs and a plurality of DC outputs. The modular DC-DC standby power converter may also be bypassed and/or put into an off-state such that a voltage(s) of at least one output of the converter may then be the same voltage(s) of at least one input. When the modular DC-DC standby power converter is bypassed and/or in the off-state, its outputs may be at a high impedance. The output voltage(s) may be adjusted for specific system requirements. Turn-on and turn-off sequencing of the output voltage(s) may be programmed. The modular DC-DC standby power converter may have short circuit protection.

Abstract: An information handling system power supply system has a plurality of power supply units (PSUs) with outputs connected in parallel and a current balancing circuit for equalizing current from these outputs. A pseudo output current value may be added to the actual output current value for each PSU so that the parallel load sharing current balance system thinks all of the PSUs are sharing the load equally. This allows simple and inexpensive paralleling of differently rated PSUs without complex load sharing circuitry. Also, PSU stress factors may be easily compensated. For each PSU there may be a first voltage, VS1, generated that is proportional to the output current of the respective PSU. A pseudo current bias voltage, VIbais, is added to the first voltage, VS1, to produce a biased second voltage, VS2, (VS2=VS1+VIbais). The biased second voltage, VS2, now represents the apparent current output of the respective PSU when current load balancing each PSU of the power supply system.

Abstract: An information handling system having a power supply with automatic adjustment of over current protection for both normal and degraded modes of standby operation. A first over current protection shutdown value is used when the power supply cooling fan is operational and a second over current protection shutdown value is used when the power supply cooling fan is not operational. A fan fault detector selects between the first and second over current protection shutdown values.

Abstract: An information handling system has a printed circuit board power supply using a linear regulator and a very low ESR output capacitor. At least one printed circuit board conductive land having a desired resistance and coupled between the output capacitor and linear regulator output terminal may be used to stabilize operation of the linear regulator.

Abstract: An information handling system power supply system has a plurality of power supply units (PSUs) with outputs connected in parallel and a current balancing circuit for equalizing current from these outputs. A pseudo output current value may be added to the actual output current value for each PSU so that the parallel load sharing current balance system thinks all of the PSUs are sharing the load equally. This allows simple and inexpensive paralleling of differently rated PSUs without complex load sharing circuitry. Also, PSU stress factors may be easily compensated. For each PSU there may be a first voltage, VS1, generated that is proportional to the output current of the respective PSU. A pseudo current bias voltage, VIbais, is added to the first voltage, VS1, to produce a biased second voltage, VS2, (VS2=VS1+VIbais). The biased second voltage, VS2, now represents the apparent current output of the respective PSU when current load balancing each PSU of the power supply system.

Abstract: An information handling system having a power supply with automatic adjustment of over current protection for both normal and degraded modes of standby operation. A first over current protection shutdown value is used when the power supply cooling fan is operational and a second over current protection shutdown value is used when the power supply cooling fan is not operational. A fan fault detector selects between the first and second over current protection shutdown values.

Abstract: An information handling system having a modular DC-DC standby power converter with programmable sequencing. The modular DC-DC standby power converter comprises a plurality of DC inputs and a plurality of DC outputs. The modular DC-DC standby power converter may also be bypassed and/or put into an off-state such that a voltage(s) of at least one output of the converter may then be the same voltage(s) of at least one input. When the modular DC-DC standby power converter is bypassed and/or in the off-state, its outputs may be at a high impedance. The output voltage(s) may be adjusted for specific system requirements. Turn-on and turn-off sequencing of the output voltage(s) may be programmed. The modular DC-DC standby power converter may have short circuit protection.