Search
Now showing items 1-8 of 8
Electrically peaking hybrid system and method
(United States. Patent and Trademark Office, 1996-12-24)
A series hybrid electric-combustion system is provided which includes an engine (16) operable to generate mechanical energy and translate it to a drive shaft (21). A battery (24) is included that is operable to store ...
Indirect rotor position sensor for a sinusoidal synchronous reluctance machine
(United States. Patent and Trademark Office, 1995-09-05)
A discrete position sensor elimination technique for a sinusoidally wound synchronous reluctance motor drive uses induced voltage, phase currents, and excitation frequency to estimate rotor position at all speeds, including ...
Method and apparatus for sensing the rotor position of a switched reluctance motor
(United States. Patent and Trademark Office, 1995-04-25)
Apparatus and method for detecting rotor (12) position in a switched reluctance motor (18) having multiple stator phases (A-A', B-B', and C-C'). A multiplexer (48) intermittently connects a known resistor (54) to a ...
Power conversion using zero current soft switching
(United States. Patent and Trademark Office, 1994-02-15)
A zero current soft switching power converter (10) is provided in which a link capacitor (20) is coupled between a source switch S1 and a source switch S2. The reversal of voltage polarity across link capacitor (20) allows ...
Capactive power circuit
(United States. Patent and Trademark Office, 1998-12-22)
A circuit for controlling power to a capacitive load includes a DC power source coupled in series with an inductor and the capacitive load. The inductor provides for resonant charging of the capacitive load from the DC ...
Inverse dual converter for high-power applications
(United States. Patent and Trademark Office, 1993-05-04)
An inverse dual converter circuit (20) provides continuous voltage step-up or step-down control over a wide range and without the need of a transformer. The converter comprises an input DC voltage source (22) for generating ...
Position sensor elimination technique for the switched reluctance motor drive
(United States. Patent and Trademark Office, 1991-12-10)
Rotor position information for a switched reluctance (SR) motor drive is obtained indirectly in response to the motor phase inductance. An oscillator generates a signal having a time period that is a function of the ...
Method and apparatus for sensing the rotor position of a switched reluctance motor without a shaft position sensor
(United States. Patent and Trademark Office, 1994-03-01)
Apparatus and method for detecting rotor (12) position in a switched reluctance motor (18) having multiple stator phases (A--A', B--B', and C--C'). A multiplexer (48) intermittently connects a known resistor (54) to a ...