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Class Information
Number: 307/56
Name: Electrical transmission or interconnection systems > Plural supply circuits or sources > Load current control > Load current division > Fixed or predetermined ratio > Diverse-or unlike-type sources
Description: Subject matter in which the plural sources are of diverse or unlike types.

Patents under this class:

Patent Number Title Of Patent Date Issued
8564249 Charging unit with two power source inputs Oct. 22, 2013
8527106 System stabilization device Sep. 3, 2013
8473250 Monitoring of distributed power harvesting systems using DC power sources Jun. 25, 2013
8456036 Input and output power modules configured to provide selective power to an uninterruptible power supply Jun. 4, 2013
8283804 Semiconductor IC device having power-sharing and method of power-sharing thereof Oct. 9, 2012
7859240 Circuit and method for preventing reverse current flow into a voltage regulator from an output thereof Dec. 28, 2010
7843171 Method and apparatus for battery charging based on battery capacity and charging source constraints Nov. 30, 2010
7781914 Input and output power modules configured to provide selective power to an uninterruptible power supply Aug. 24, 2010
7732944 Central current share coordinator, method of current sharing and battery plant employing the same Jun. 8, 2010
7688029 Portable battery powered appliance and method of operation Mar. 30, 2010
7342326 Circuit arrangement for momentarily maintaining an internal operating direct current voltage in the event of an interruption in the vehicle electrical system power supply voltage Mar. 11, 2008
6870282 Method for the transmission of signals in a bus system, superposed on a direct supply voltage Mar. 22, 2005
6294404 Semiconductor integrated circuit having function of reducing a power consumption and semiconductor integrated circuit system comprising this semiconductor integrated circuit Sep. 25, 2001
5717303 DC motor drive assembly including integrated charger/controller/regenerator circuit Feb. 10, 1998
5182463 3-Phase converter apparatus Jan. 26, 1993
5087872 Circulating load apparatus Feb. 11, 1992
4731690 Real load unbalance protection system for parallel variable speed constant frequency electrical power systems Mar. 15, 1988
4651019 Dual fueled thermoelectric generator Mar. 17, 1987
4529973 School cafeteria sound level monitor Jul. 16, 1985
4449057 Solar cell power supply device May. 15, 1984
4444905 Hydrotreating catalyst preparation and process Apr. 24, 1984
4398143 Remote supply circuit for analog two-wire connection Aug. 9, 1983
4160941 Multi-purpose battery charger Jul. 10, 1979
4156150 Circuit for regulating a DC voltage on which a large AC voltage is superimposed May. 22, 1979
4048513 Rectifier controlled circuit Sep. 13, 1977

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