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Class Information
Number: 307/86
Name: Electrical transmission or interconnection systems > Plural supply circuits or sources > Connecting or disconnecting > Condition responsive
Description: Subject matter in which the connection or disconnection is made automatically responsive to a condition.

Sub-classes under this class:

Class Number Class Name Patents
307/87 Attainment of voltage, frequency or phase relationship 360

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8686596 Fuse box system and method Apr. 1, 2014
8674548 Inverters Mar. 18, 2014
8667314 Power switching circuit of portable electronic device Mar. 4, 2014
8659283 Converter circuit Feb. 25, 2014
8653695 Power switching device and method thereof, and projection device using the power switching device Feb. 18, 2014
8593014 Method of operation and device for controlling an energy installation with photovoltaic modules Nov. 26, 2013
8576046 Playback control apparatus and audio system Nov. 5, 2013
8575940 Power supply device and method for detecting non-contact state of load connected to power supply device Nov. 5, 2013
8541909 System having a variable frequency power distribution bus for driving a variable speed motor Sep. 24, 2013
8531055 Safety mechanisms, wake up and shutdown methods in distributed power installations Sep. 10, 2013
8503900 Power supply unit and image forming device having the same Aug. 6, 2013
8487568 Circuit arrangement for an electric drive Jul. 16, 2013
8427001 Electrically controlled frequency-based power system architecture for aircraft Apr. 23, 2013
8420240 Method for controlling sodium-sulfur batteries Apr. 16, 2013
8390260 Power supply for negative voltage load Mar. 5, 2013
8362649 Multi-use voltage regulator Jan. 29, 2013
8354761 Transforming device, electronic apparatus, and power supply system including the same Jan. 15, 2013
8338986 System and method for employing an on-machine power supply with monitoring and control capability Dec. 25, 2012
8338988 Adaptation of an active power supply set using an event trigger Dec. 25, 2012
8334618 Method and area electric power system detecting islanding by employing controlled reactive power injection by a number of inverters Dec. 18, 2012
8319375 Power supply system and electronic instrument Nov. 27, 2012
8310097 Temperature-sensing uninterruptible power supply system and method for controlling the same Nov. 13, 2012
8295950 Intelligent power management system Oct. 23, 2012
8258705 Scotopically enhanced emergency light and control thereof Sep. 4, 2012
8253277 Electronic assembly provided with a parallel circuit for connecting electrically to two battery units Aug. 28, 2012
8242630 Multiple power supply integration apparatus, multiple power supply integration system, and multiple power supply integration program Aug. 14, 2012
8232680 Selecting a single AC source for a switching power supply Jul. 31, 2012
8232681 Hybrid wind-solar inverters Jul. 31, 2012
8228648 Compressor protection and grid fault detection device Jul. 24, 2012
8222768 Methods and apparatus for powering electric devices coupled to a patient to reduce transients in patient monitoring devices Jul. 17, 2012
8217534 Power generator distributed inverter Jul. 10, 2012
8212405 Metering assembly and customer load panel for power delivery Jul. 3, 2012
8203236 Dual voltage-source inverter system and method Jun. 19, 2012
8183715 Reverse current preventing circuit and power source switching apparatus May. 22, 2012
8129862 Scalable highest available voltage selector circuit Mar. 6, 2012
8129863 Connection apparatus for parallel running generators Mar. 6, 2012
8125105 Power supply device and construction machine Feb. 28, 2012
8084886 Uninterruptible power supply apparatus Dec. 27, 2011
8084892 Power supply device and method Dec. 27, 2011
8081497 Converter station Dec. 20, 2011
8076797 Energy transfer circuit and method Dec. 13, 2011
8049368 Load driving circuit and load driving method Nov. 1, 2011
8044539 Intelligent solar energy collection system Oct. 25, 2011
8030798 Power supply for an electronic device Oct. 4, 2011
8026637 Power supply having an auxiliary power cell Sep. 27, 2011
8018091 Power-mode selectable backup power supply Sep. 13, 2011
8014178 Converter station Sep. 6, 2011
8004109 Vehicle power supply apparatus, and vehicle Aug. 23, 2011
7999411 Electronic card connector, level-shifting device and digital television receiver Aug. 16, 2011
7989985 Method and system to stop return current from flowing into a disconnected power port of a dual battery powered device Aug. 2, 2011

1 2 3 4 5 6

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