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Class 322/26 - Light or photosensitive control circuits


Subclass of Class 322 - Electricity: single generator systems
Definition: Subject matter wherein the automatic control means is responsive
No. of patents: 18
Last issue date: 03/25/2008


NumberTitleIssue Date
7348702Apparatus and method for flywheel based cooling
In accordance with exemplary embodiments, the present invention provides a transient power source that includes a flywheel that stores kinetic energy. In the event of a loss of main or operating power, the kinetic energy stored in the flywheel is converted into elec...
03/25/2008
7292008Electric generation control apparatus for vehicle alternator
An electric generation control apparatus for a vehicle alternator receives an electric generation control signal transferred from an ECU placed apart from the control apparatus through a data transfer line. The control apparatus has a voltage comparator, a communica...
11/06/2007
7285937Electric generation control apparatus for vehicle alternator
An electric generation control apparatus for a vehicle alternator receives an electric generation control signal transferred from an ECU placed apart from the control apparatus through a data transfer line. The control apparatus has a voltage comparator, a communica...
10/23/2007
7038428Control apparatus for automotive generator
A DF signal averaging circuit includes a counter for counting a clock signal fed from a clock signal generator, an OR circuit which causes the counter to perform count-up operation only when a transistor is in an ON state with the clock signal and a potential signal...
05/02/2006
6850042Control unit of a vehicle generator
A control unit of a vehicle generator is provided which is capable of instantaneously stopping power generation in a safe manner with an inexpensive system configuration without the need of interrupting a large current when a key switch is turned off. The control un...
02/01/2005
6734653Voltage regulator for alternator and method of controlling power generation of alternator
In an alternator, failure in a power supply line connected to an output terminal of a rectifier is detected. Upon detection of a failure in this power supply line, power generation is suppressed for a predetermined period that is longer than the time constant of a f...
05/11/2004
6717385Voltage regulator of vehicle AC generator
A voltage regulator is comprised of a semiconductor element for controlling current supplied to a field coil, a flywheel element, a generation voltage regulation circuit for controlling the semiconductor element, and a switching capacity control circuit for controll...
04/06/2004
6696820Alternating current generator field regulation control
A circuit configuration for controlling the field current of an alternating current generator in a vehicle electrical generator system includes a digital to analog converter for converting a digital command signal to an analog voltage. A first comparator ...
02/24/2004
6614207Vehicular power generator control apparatus having maximum conduction rate limiting function
A vehicular power generator control apparatus includes a switching transistor, a voltage control circuit, a high rotation speed detecting circuit, a leakage detecting circuit and a maximum conduction rate restricting circuit. The leakage detecting circuit...
09/02/2003
6528973Voltage-limiting regulator for use with an AC generator having DC-excited fields
The present invention features a voltage-limiting regulator for use with an AC generator having DC-excited fields. The AC output voltage from the generator is sensed and compared to a fixed reference representative of the sensed difference is amplified an...
03/04/2003
5488287Method of producing electrical energy by means of generators and use of the method in vehicles with anti-skid systems
A method of producing electrical energy from rotary motion of an axle of a vehicle utilizes a generator assembly including a generator coupled to the axle. The method includes determining the rate of rotation of the axle, carrying out the electrical energ...
01/30/1996
4948997Starter and power generator and associated motor
Disclosed are a starter and power generator which starts an engine and which is subsequently driven by the engine to generate power, and a motor used in the starter, in particular, a self-controlled commutatorless motor in which a rotating magnetic field ...
08/14/1990
4723106Brushless generator exciter using hybrid rectifier
A brushless generator exciter employs a hybrid full-wave rectifier in which at least some of the rectifying diodes are controllable according to an external signal for adjusting the total exciter power fed to the generator rotor. An optical transmission t...
02/02/1988
4719698Electric shaver with a drive control
An electric shaver comprising a shaver housing comprising a generally rectangular box-like casing and a head casing removably mounted on one end of the box-like casing; a finely perforated stationary shear foil replaceably mounted on the head casing; a re...
01/19/1988
4516066Dual-voltage battery charging system
A battery charging system for a dual-voltage motor vehicle electrical system that has a pair of series-connected batteries that can energize an electric cranking motor. One of the batteries is charged from a diode-rectified alternating current generator. ...
05/07/1985
4492912Dual voltage motor vehicle electrical system
A dual voltage motor vehicle electrical system comprising series connected cranking and accessory batteries that are used to energize an electric vehicle engine cranking motor. The accessory battery is charged by a vehicle engine driven generator and the ...
01/08/1985
4224562Voltage regulator with electrically isolated output stage
The voltage regulator includes a voltage regulation electric circuit stage, an output electric circuit stage and an optic coupler connecting but electrically isolating said stages. The input of the voltage regulation stage is connected to a battery and/or...
09/23/1980
3984754Device for automatic excitation of brushless electrical machines
A device for automatic excitation of brushless electrical machines, comprising: an A.C. exciter feeding a power converter built around controlled rectifiers disposed on a machine shaft; a converter control circuit employing optoelectronic elements with li...
10/05/1976
 
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