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| Number | Title | Issue Date |
| 5672955 | Alternator regulation of unbalanced currents with temperature compensation This invention relates to regulation techniques for alternators typically permanent alternators as might be used on recreational vehicle engines. The regulation techniques previously known under some conditions produce undesirable high direct current comp... | 09/30/1997 |
| 5637985 | Alternator control system An alternator control system controls a field current passing an alternator so as to regulate a terminal voltage of a vehicle battery to a target voltage, based on a deviation of the terminal voltage from the target voltage, by feedback control. The field... | 06/10/1997 |
| 5589758 | Modular, hybrid power system A power system provides various levels of electrical power at various radio frequencies to specific input locations of a neutral particle beam accelerator system. Both the power system and the accelerator system are mounted on a space platform. The power ... | 12/31/1996 |
| 5374886 | Voltage regulator for an alternator and method of regulating voltage generated by an alternator In a voltage regulator for an alternator which charges a battery via a charging cable and supplies a vehicle mains with voltage, the output voltage is regulated as a function of the temperature of the battery. The voltage regulator has a power part and a ... | 12/20/1994 |
| 5280231 | Battery condition detecting apparatus and charge control apparatus for automobile A battery condition detecting apparatus includes a current detecting apparatus, a voltage detector and a current accumulator of a battery. The battery condition detecting apparatus detects a first battery capacity when an engine is started based on the ba... | 01/18/1994 |
| 5278488 | Process for improving the charge state of a battery arrangement in a motor vehicle A process for improving the charge state of a motor vehicle battery arrangement having at least one battery and a generator driven by an internal combustion engine. Output power of the generator being at least partially utilized in order to charge the bat... | 01/11/1994 |
| 5266882 | Control device for an alternating current generator of a vehicle A control device for an alternating current generator of a vehicle, having a storage battery which is charged by a rectified output of the generator, a field current detecting resistance (304) having a positive temperature coefficient, a voltage divider (... | 11/30/1993 |
| 5241261 | Thermally dependent self-modifying voltage source A thermally dependent self-modifying voltage source (115) is constructed with a first reference circuit (301) having a control input (311), a primary output (117) dependent on the control input, and a thermally dependent secondary output (303). The therma... | 08/31/1993 |
| 5198744 | Apparatus and method for controlling the output power of a generator to maintain generator temperature below an allowed limiting value A generator having an exciting winding and a standard load associated with a standard exciting current in the exciting winding can be controlled by a voltage regulator which adjusts an exciting current in the exciting winding and a temperature measurement... | 03/30/1993 |
| 5175486 | Dual-level-output circuit for charging generator In a circuit (20) for use in controlling a battery-charging process and producing an output (S) which has one of two distinct levels (S1, S2), these levels are independently adjustable by adjusting variable resistors (R1, R2). Switching between the two le... | 12/29/1992 |
| 5160881 | Alternator for a motor vehicle having a ventilator and device for monitoring and a controlling the ventilator Fresh air from an area located outside of the engine compartment is supplied to an alternator in a motor vehicle by ventilator. The ventilator is supplied with voltage from the alternator power supply system, and since a failure of the ventilator could le... | 11/03/1992 |
| 5122723 | Charging control apparatus for vehicles A charging control apparatus for a vehicle has a charging control unit. A voltage detecting terminal receives a control voltage that controls the output of a battery charging generator. This unit can use a Type I system, which directly detects the battery... | 06/16/1992 |
| 4992722 | Charging control unit and method for motor vehicle A charging control unit comprises a voltage detecting means including a first and a second resistor connected in series to an output of the armature coil, a third resistor parallelly connected to the second resistor and a temperature detecting element hav... | 02/12/1991 |
| 4945299 | Control apparatus for an a.c. generator for automobile A reference voltage circuit for a voltage regulator control includes three parallel voltage dividers cross-coupled by oppositely poled diodes, one of the dividers having a negative voltage-temperature characteristic tied to the battery electrolyte tempera... | 07/31/1990 |
| 4937514 | AC generator control apparatus for vehicles A control apparatus of an AC generator for use in vehicles is disclosed which includes an AC generator having a field coil, a storage battery to be charged by a rectified output of the AC generator, a voltage regulator for regulating the output voltage of... | 06/26/1990 |
| 4760323 | Voltage regulator for generator A voltage regulator for a generator wherein a switching device connected in series to the field coil of the generator is adapted to be controlled in accordance with an output voltage of the generator and the ambient temperature at the voltage regulator so... | 07/26/1988 |
| 4739243 | Startup period control device for vehicle generator The output current and drive torque characteristics of a vehicle generator during cold, startup periods are approximated to those of a warmed up generator by sensing the field winding current, and interrupting it for a time period prolonged by a feedback/... | 04/19/1988 |
| 4686446 | Power generation control apparatus for alternating current generator A control apparatus for a vehicle alternating current generator comprising a switching device operable in response to the detection of an operating state temperature to control the field current of the generator independently of another switching device p... | 08/11/1987 |
| 4680530 | Voltage regulator for generator used in automobile In a generator charging a battery on an automobile with output voltage thereof, a voltage regulator has a constant voltage source; first and second voltage dividers dividing the voltage of the constant voltage source; a series circuit consisting of a ther... | 07/14/1987 |
| 4659977 | Microcomputer controlled electronic alternator for vehicles A microprocessor-based electronic voltage regulation system for controlling the charging of the battery in a vehicle. The conventional voltage regulator is eliminated and the intelligence of the microprocessor already present on the vehicle for controllin... | 04/21/1987 |
| 4629967 | Generator voltage regulator A voltage regulating system for a diode-rectified alternating current generator that supplies the electrical loads on a motor vehicle including charging the storage battery. The voltage regulator has a reference voltage developing circuit that can operate... | 12/16/1986 |
| 4595965 | Apparatus and method for detecting a rotating rectifier fault A microcomputer implemented apparatus and method for detecting the occurrence of a shorted diode in the rotating rectifier of a brushless alternator. The alternator current, voltage and power output and the alternator temperature are measured. The anticip... | 06/17/1986 |
| 4594631 | Temperature protective circuit for a charging generator A charging generator system including a protective circuit which prevents the generator system from overheating when the ambient temperature is extraordinarily high. A protective shorting circuit is coupled between a rectifier output terminal supplying th... | 06/10/1986 |
| 4590415 | Control apparatus for charging generator A control apparatus for controlling the power supply to the field coil of a charging generator in which a smoothing capacitor of a low capacitance value is provided to prevent maloperation in the control circuit due to ripples in the output of the generat... | 05/20/1986 |
| 4584516 | Charge display circuit A charge display circuit for indicating the charging state of an automotive electrical system in which the brightness of the charge display lamp is increased while reducing the average power consumption of the circuit. A rectifier circuit having first and... | 04/22/1986 |
| 4563631 | Voltage regulator for charging generator A voltage regulator for a charging generator comprising an a.c. generator, a rectifier for converting the a.c. output of the a.c. generator to a d.c., a battery connected to the output of the rectifier, comparison means for comparing the battery voltage w... | 01/07/1986 |
| 4470003 | Voltage regulator with temperature responsive circuitry for reducing alternator output current A conventional voltage regulator is modified to reduce the power output from an associated alternator type generator by lowering the field current duty cycle when the ambient temperature at the voltage regulator exceeds a predetermined critical value, to ... | 09/04/1984 |
| 4435676 | Regulator for controlling output from generator having ambient temperature override The disclosed device for controlling an output from an AC generator to a predetermined magnitude comprises two transistors put in a Darlington configuration and connected across a rectified electric source due to the AC generator through a field coil of t... | 03/06/1984 |
| 4421967 | Windmill driven eddy current heater A windmill electric heater converts wind energy to heat energy. A windmill drives a rotor of an eddy current heater. Magnetic fields are provided at an air gap between the rotor and a stator of the eddy current heater. Rotation of the rotor with respect t... | 12/20/1983 |
| 4415849 | Alternator protection system The protection system includes an over-temperature warning lamp in addition to the usual charge indicator lamp. Both lamps light at ignition as a test, then both go out. If the alternator should fail, both lamps again light. If the alternator overheats, o... | 11/15/1983 |
| 4385270 | Temperature limited voltage regulator circuit Field coil current of an alternator is controlled in response to temperature as well as to battery voltage, thus allowing maximum safe output power at any ambient temperature. A monostable circuit is utilized for reducing the maximum duty cycle of the fie... | 05/24/1983 |
| 4380725 | Generator-battery DC power supply system A generator-battery DC power supply system comprises a plurality of sub-systems each including a battery and a temperature sensor sensing the temperature of the battery and controlling the generator regulating means to decrease the generator output voltag... | 04/19/1983 |
| 4237412 | Voltage regulator for a generator A voltage regulator intended for a car generator in order to give an appropriate charging voltage which can be compensated for variations in ambient temperature or the like. An advantage of the present regulator is that it may be used with or without an e... | 12/02/1980 |
| 4222000 | Battery heating system A battery heating system comprises a number of storage batteries and an alternator driven by a variable speed prime mover connected to supply AC heating current to the batteries. The system is arranged so that the AC current is substantially constant over... | 09/09/1980 |
| 4220908 | Automotive battery charging system An automotive battery charging system includes a novel temperature compensation arrangement. The conventional input potential divider has a further resistor and a temperature compensation output transistor in series across one leg of the divider. The volt... | 09/02/1980 |
| 3964444 | Control circuit for an electromotor A pair of relay contacts directly connect the electromotor to a battery when closed. One side of the relay coil controlling the contacts is connected to a battery when a thermostat responsive to engine temperature closes. The other side of the relay coil ... | 06/22/1976 |
