30results about How to "Reduce power impact" patented technology

Information handling system power management in standby and hibernate states is adapted to reduce transition times for end user requests to resume to an operational state. During fast resume time periods, transitions to the hibernate state are limited so that recovery to an operational states has the reduced resume time associated with the standby state. The fast resume time periods are set by user preference or automatically set by monitoring end user interactions with the information handling system to predict fast resume times appropriate for the end user. In one embodiment, a power manager automatically transitions the information handling system from the hibernate state to a standby state a predetermined time period before a fast resume period begins.

The invention relates to a zinc oxide arrester DC characteristic testing device and a zinc oxide arrester DC characteristic testing method. The zinc oxide arrester DC characteristic testing device comprises a microprocessor control module, a power supply module and an A / D converter, and further comprises a high-voltage power supply, a voltage sampling module, a current sampling module and a D / A converter, wherein the high-voltage power supply of the device integrates a constant-voltage and constant-current control circuit, a voltage-doubling rectifying circuit and a protective circuit; and the D / A converter controls output signals of the high-voltage power supply and controls the high-voltage power supply to output constant-current and constant-voltage signals. The method for testing the DC characteristics of a zinc oxide arrester by adopting the device comprises that: the high-voltage power supply outputs 1mA current signals in a constant-current way; a voltage collection circuit collects a voltage value of the tested zinc oxide arrester; the microprocessor control module calculates a value which is 0.75 time the voltage value; the high-voltage power supply outputs the voltage with the voltage value which is 0.75 time the collected voltage value in a constant-voltage way; the current signals are collected; and the electric property of the zinc oxide arrester is judged. All test items are automatically finished, which realizes the disassembly-free test and uninterrupted operation of the arrester and reduces the complexity of the test work.