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.

A device being a power receiver or power transmitter of a wireless power transfer system transfer powers via a power transfer signal: The device comprises power transfer coil (103, 107) for receiving or generating the power transfer signal and a communication antenna (207, 307) for communicating with the power receiver (105) or the power transmitter (101) via a communication signal. The communication antenna (207, 307) overlaps the power transfer coil (103, 107). A magnetic shielding element (503, 505) is positioned between the power transfer coil (103, 107) and the communication antenna (207, 307). A controller (201, 301) controls the device to perform power transfer during power transfer intervals and communication during communication time intervals, the power transfer intervals and communication time intervals being disjoint. The magnetic shielding element (503, 505) comprises a magnetic shield material arranged to operate in a saturated mode during power transfer intervals and in a non-saturated mode during communication time intervals.

The invention relates to design of ground testing apparatuses directed at airplane air source systems, and in particular to a multi-air source system flow balance controlling apparatus. The controlling apparatus is intended for controlling the air-entraining flow of each path air source in the multi-air-entraining system. The controlling apparatus includes: air source pressure-regulating valves each of which is arranged in each path air-entraining pipeline; precoolers each of which is arranged in each path air-entraining pipeline and is arranged upstream of the air source pressure-regulating valve; first pressure transducers and second pressure transducers each pair of which are separately arranged upstream and downstream of the precooler of each path air-entraining pipeline; and a flow balance controller. According to the invention, the flow balance controller can regulate the air source pressure-regulating valve of a corresponding path air source on the basis of the comparison result between real time flow and object flow so as to automatically regulate the flow of the multi-air-entraining system, and the apparatus allows relative balance of the air-entraining amount of each engine and eliminates the phenomenon of excessive air entraining of a single engine, so that the method reduces influence on engine power, increases safe flying of the airplane, and reduces rate of error alarm report of the air-entraining valve.

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.

The present invention discloses a power transmission control method and device for a crane and the crane. The method includes: setting the maximum working displacement of a secondary element corresponding to each gear of the crane; determining the current gear state and specific gear of the crane; determining the working mode of the secondary element from the gear state, and setting the maximum allowable displacement of the secondary element as the maximum working displacement corresponding to the specific gear.

A power supply system includes an input stage converting circuit, a first energy storage component, and an output stage converting circuit. The first energy storage component is electrically coupled to the input stage converting circuit, and the output stage converting circuit is electrically coupled to the first energy storage component. The input stage converting circuit is configured to charge the first energy storage component, and the first energy storage component stores charging electricity. The output stage converting circuit is configured to convert the charging electricity into output electricity and provide the output electricity to a load. The input stage converting circuit has a first electric power, and the output stage converting circuit has a second electric power greater than the first electric power. A method for converting power of the power converter is also disclosed herein.

The invention discloses a power control device for a low-power laser device and a control method of the power control device for the low-power laser device and belongs to the field of laser devices. The power control device for the low-power laser device comprises a laser device control lens. A laser guide device is fixedly connected to the back end of the laser device control lens. The outer endof the laser guide device is fixedly connected with a laser emitter. In the prior art, through cooperation of a convex lens and a concave lens in a beam expander, the diameter of a laser is changed, the manner only can change the output power of the laser of a unit area and cannot change the total power acting on an object, and the direction of the laser beam can be changed. Compared with the prior art, the power control device for the low-power laser device keeps the output power of the laser of the unit area constant, changes the diameter of the laser and influences the total power of the laser acting on the object at the same time, and adjustment of the power of the laser acting on the object is achieved.