Electricity: single generator systems inventions 05/08

20080122408 - Electronic controller matching engine power to alternator power and maintaining engine frequency for a free-piston stirling engine driving a linear alternator: A switching mode rectifier connects the alternator winding to an energy storage capacitor or battery. A negative feedback, alternator current control loop has an output connected to the pulse width modulator of the switching mode rectifier and has a feedback circuit comprising a current sensor for sensing instantaneous alternator current.... Agent: Kremblas, Foster, Phillips & Pollick

20080122409 - Motor vehicle comprising a recuperation generator: Disclosed is a motor vehicle comprising a generator and at least one capacitor in which recuperation power generated in a thrust phase by the generator that can be operated as a recuperator can be stored. The excitation current (IErr) that limits the power of the generator (3) can be varied... Agent: Novak Druce & Quigg LLP

20080116857 - Control method of generator: When drive control of a generator is performed, PWM control of a switching circuit comprising an FET and a diode connected to the opposite ends of a winding is performed. In the vicinity of a moment in time Lmax where the winding has a maximum inductance L, an alternating mode... Agent: Wenderoth, Lind & Ponack, L.l.p.

20080116858 - Concept for providing a regulated, limited generator excitation current to a generator: A device for providing a regulated, limited generator excitation current to a generator to acquire a regulated output voltage of the generator, the device including a combiner for weighted combining a first system deviation on the basis of a setpoint voltage and of the regulated output voltage, and a second... Agent: Eschweiler & Associates Llc

20080116856 - Electromechanical generator for, and method of, converting mechanical vibrational energy into electrical energy: An electromechanical generator comprising an electromechanical device for converting mechanical vibrational energy into electrical energy, the electromechanical device having a vibratable mass adapted to resonate with an oscillation amplitude at a frequency and a regulator for regulating the oscillation amplitude to a value not greater than a maximum threshold.... Agent: Carstens & Cahoon, LLP

20080106240 - Controller for vehicle ac generator: A controller for a vehicle AC generator that allows the aging test time of a CMOS logic circuit to be reduced is provided. The controller includes a specified signal detecting circuit connected to a third external terminal to detect a specified signal, a voltage selector circuit that generates a voltage... Agent: Sughrue Mion, PLLC

20080100269 - Controller of ac generator for vehicle: A controller of a generator for a vehicle in the invention includes a battery voltage detecting circuit and an output terminal voltage detecting circuit of an AC generator. A value of a detected voltage of the output terminal voltage of the AC generator is set to be higher than a... Agent: Sughrue Mion, PLLC