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Class Information
Number: 320/142
Name: Electricity: battery or capacitor charging or discharging > Battery or cell charging > Pulsed > Pulse modulation > Phase controlled
Description: Subject matter including means for switching the pulses on and off based upon the phase of an alternating current source utilized to supply energy for the pulses (e.g., using silicon controlled rectifiers, etc.).

Sub-classes under this class:

Class Number Class Name Patents
320/143 With voltage compensation 26

Patents under this class:

Patent Number Title Of Patent Date Issued
8450981 Power conversion apparatus May. 28, 2013
8378638 Battery status detecting method and battery status detecting apparatus Feb. 19, 2013
8299758 Charging controller Oct. 30, 2012
8283980 Amplifier circuit Oct. 9, 2012
8264207 Method and system for pulse charging an automotive battery Sep. 11, 2012
8237412 Battery charger and method utilizing alternating DC charging current Aug. 7, 2012
8004236 Contactless charging device and contactless charging method Aug. 23, 2011
7994754 Battery charging apparatus, battery pack, battery charging system, and battery charging method Aug. 9, 2011
7898218 Power supply topologies with PWM frequency control Mar. 1, 2011
7564222 Method for fast-charging a battery and device for carrying out said method Jul. 21, 2009
7504803 Charging method for rechargeable batteries and device therefor Mar. 17, 2009
7339354 Rechargeable battery charging method and apparatus Mar. 4, 2008
6768286 Battery charger system and method for providing detailed battery status and charging method information about multiple batteries Jul. 27, 2004
5694022 Variable pulse recharging battery pack Dec. 2, 1997
5686817 Battery charger having microcomputer for adjusting charging current Nov. 11, 1997
5248928 Timed battery charger Sep. 28, 1993
5247238 Battery charger automatic cut-off circuit Sep. 21, 1993
4843299 Universal battery charging system and a method Jun. 27, 1989
4616171 Battery charger including thermistor Oct. 7, 1986
4311920 Emergency power source Jan. 19, 1982
4258304 Battery charger for electrical vehicle Mar. 24, 1981
4207513 Automatic battery charger Jun. 10, 1980
4031451 Charging circuit with SCR's triggered by pedestal and cosine modified ramp unijunction circuit having means for current limiting by controlling pedestal level Jun. 21, 1977
4019111 Battery charger with automatic change from current to voltage mode control Apr. 19, 1977

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