Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Energy conservation circuit and method for use with multi-phase motors used to power a variable load Image Number 6 for United States Patent #6091218. An energy conserving apparatus and method are disclosed. The apparatus is used for conserving power supplied to a multi-phase motor used to power a compressor having a high pressure output line. The motor has a plurality of voltage input lines for connection to receive a multi-phase input voltage. The apparatus includes a monitor for connection to monitor a parameter of the high pressure output line. A plurality of voltage limiting circuits in respective ones of the voltage input lines limit a voltage on the input lines to below selectable voltage levels in response to a control signal. A control circuit is connected to the monitor. The control circuit has a plurality of discrete programmed output levels to provide the control signal to the voltage limiting circuits. Each output level corresponds to a range of the parameter values of the high pressure output line, whereby the voltage limiting circuits limit the input voltage in discrete increments in relation to the parameter values in said high pressure output line. The monitored parameter in the case of a gas/fluid compressor may be a pressure or a temperature in the high pressure output line. The control circuit controls the timing for transitions between discrete voltage levels.       Recently Added Patents Memory apparatus Magnetic sensors having perpendicular anisotropy free layer Method of selectively inhibiting the activity of ACAT1 in the treatment of Alzheimer's disease Oligomer conjugates of heteropentacyclic nucleosides Image reading device Devices, systems, and methods for material fixation Hydraulic excavator   Randomly Featured Patents Organic electro luminescence device incorporating a power supplying part for selectively supplying a power source and method for fabricating thereof Thermostable DNA polymerase thermus thermophilus and a method of producing the same Drug delivery devices and process of manufacture Direct chip attachment (DCA) with electrically conductive adhesives Wind power energy generating system Floating point computing device for simplifying procedures accompanying addition or subtraction by detecting whether all of the bits of the digits of the mantissa are 0 or 1 Providing an announcement about transactions of a target merchant to a consumer Clamp for connecting a wire to a rail Sodium-sulfur battery and method of making a double carbon mat-composite sulfur electrode for use in sodium-sulfur cells Portable performance test stand for scaled radio-controlled nitro cars © 2006-2008 PatentGenius. All Rights Reserved.