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7522427 |
Electrical module
The invention relates to an electrical module, comprising a first electrical interface, said module being attachable to an electrical device for connecting said first electrical interface to said...
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7508645 |
Method and apparatus for operating a magnetic actuator in a power switching device
A method and apparatus for operating a magnetic actuator in a power switching device by transmitting at least two different electrical current waveforms to the actuator. Both waveforms are sent to...
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7262950 |
Relay device having holding current stabilizing and limiting circuit
A relay device includes plural relay units, each having a coil for opening/closing a contact point, a base plate made of resin and having wiring metal pieces, and a control circuit mounted on the...
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7245474 |
Circuit arrangement and method for controlling a bistable magnetic valve
A circuit arrangement and also a method for controlling a bistable magnetic valve in which a magnetic valve is to be supplied with a pulse of electrical current in order to switch over the magnetic...
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6985345 |
Method and a device for operating an electro-magnet on an intrinsically safe direct current circuit
The present invention relates to a method for operation of an electro-magnet ( 2, 3 ) connected to an intrinsically safe direct current circuit which can be switched under control between two...
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6873514 |
Integrated solenoid system
An integrated solenoid system including a single housing containing a solenoid, a controller and one or more electrical connections. The controller includes temperature compensating means and/or...
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6845300 |
Control methods for electromagnetic valve actuators
An electromagnetically operated valve assembly ( 28 ) has a first solenoid ( 58 ) and a second solenoid ( 60 ). An armature ( 56 ) having a valve stem ( 54 ) coupled thereto is positioned between...
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6775114 |
Electronic drive control apparatus
An electronic drive control apparatus for controlling a drive coil of a contactor includes a microcontroller configured for generating an inverted pulse width modulated signal, and at least one...
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6760211 |
Remote activation mechanism for equipment hold down and release
Remote activation mechanism for equipment hold down and release, composed of a fixed base ( 1 ); a disk with capacity to rotate ( 2 ); a ring ( 3 ) subdivided in independent segments; a helical...
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6678142 |
Method of controlling an actuator
An actuator has an actuating element and an actuating drive with an electromagnet with a coil. An armature, which can be coupled to the actuating element, can move between a first contact surface...
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6256185 |
Low voltage direct control universal pulse width modulation module
An electrical control module and circuit for controlling a solenoid. The control circuit provides a constant voltage to a solenoid for a predetermined time period after which a pulse width...
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6166896 |
Method of increasing the cast-off speed of the armature in an electromagnetic actuator
A method of increasing a cast-off speed of an armature from a pole of an electromagnet of an electromagnetic actuator, includes the following steps: holding the armature at the pole against a force...
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6122158 |
Wide voltage range driver circuit for a fuel injector
A driver circuit is provided for an electromagnetic fuel injector having a coil and powered by a supply voltage. The driver circuit includes a comparator to control activation current to the coil...
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6061224 |
PWM solenoid driver and method
A solenoid driver circuit includes an input terminal for receiving a solenoid actuation pulse, an output terminal for connection to a terminal of a solenoid coil, a pull-in current adjustment...
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5999396 |
Circuit for driving a contactor
The circuit on which the present invention is based has a control circuit in which a switching element and a measurement resistor are connected in series with the contactor coil. A pickup current...
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5991144 |
Circuit for tripping breaker
An apparatus for tripping a circuit breaker having a trip coil. A trip circuit is coupled at a first node to a first power supply and at a second node to the trip coil. The trip circuit comprises a...
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5889646 |
Circuit configuration and method for triggering at least one electrically triggerable magnet
In a circuit configuration and a method for triggering at least one electrically triggerable magnet with a suitably targeted triggering power, the magnet switches a switching element into a desired...
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5870270 |
Non-burnout controller for a switching coil
A non-burnout controller for a switching coil is disclosed. The controller has a pulse timer, a relay switch, and an actuation switch. After being reset and actuated, the pulse timer defines a...
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5815365 |
Control circuit for a magnetic solenoid in a modulating valve application
A solenoid control circuit is disclosed for providing the initial pull-in power to a magnetically-held solenoid and thereafter providing a release-pulse upon power loss to the circuit to release...
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5805405 |
Power supply circuit of an excitation coil of an electromagnet
A power supply circuit, using direct current or rectified alternating current sources having output and return supply lines (a, b), for a coil of an electromagnet having at least one principal...
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5793599 |
Control of the attraction of an armature of a switching magnet and a switching arrangement for performing the method
A method of energy-saving regulation of the attraction of an armature of a switching magnet, particularly an electromagnet for a control element in an internal combustion engine, wherein a medium...
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5654865 |
Power and control circuit for an electric door strike
This invention discloses a versatile power and control circuit for an electric door strike that is operable in four different modes with readily adjustable release times. In addition, the invention...
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5475561 |
Solenoid circuit
A solenoid circuit for particular use in a transmission controller measures the instantaneous current through the solenoid coil with the use of a current switch operating in an on mode to cause the...
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5467248 |
Relay control circuit
A relay control circuit in which a capacitor is used as a power source of a transistor which prohibits operation of the transistor which is operated by input by switch operation. If power is no...
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5461563 |
Non-stage transmission control system
In a non-stage transmission control system, the output current instruction signal of a microcomputer is provided as a pulse-width-modulated signal, with a result that the number of signal lines...
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5394291 |
Relay energizing circuit
A method of energizing a relay comprising the steps of applying an energization signal to the relay having a voltage in excess of a rated voltage of the relay and then allowing the energization...
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5379178 |
Method and device for triggering an electromagnetic consumer
In the case of a method and a device for triggering an electromagnetic consumer (1), which is connected in series to a switching means (2), the voltage applied to the switching means (2) is fed to...
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5363270 |
Rapid response dual coil electromagnetic actuator with capacitor
An electromagnetic actuator having an integral capacitor and secondary coil for reducing opening and closing response times without the need for switching circuits. The secondary coil produces a...
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5341032 |
Inductive load drive circuit, particularly for fuel injections
A circuit comprising a switch series connected to a load; a first and second current recirculating branch alternately connectable parallel to the load, for reducing the current in the same; and a...
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5335136 |
Electronic circuit arrangement for triggering solenoid valves
The invention relates to an electronic circuit arrangement for triggering excitation windings of electromagnetic components, provided with supplementary circuit elements, in particular free-running...
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5251091 |
Solenoid driving circuit for automatic transmission
A solenoid driving circuit for an automatic transmission in which a potential difference compensating device, such as a Darlington-connected transistor circuit, switching transistor, and/or diode,...
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5245501 |
Process and apparatus for controlling and measuring the movement of an armature of an electromagnetic switching member
A process for controlling and measuring the movement of an armature of an electromagnetic switching member with an excitation coil is proposed, which has the following steps: a current (i) or a...
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5235490 |
Trigger circuit for an electromagnetic device
A trigger circuit for an electromagnetic device, in particular a solenoid valve of an injection system for an internal-combustion engine, has a control element for causing excitation of the...
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5107391 |
Circuit for driving one or more electromagnetic relays which uses minimum power and results in minimum temperature in the relays
A circuit arrangement for driving at least one electromagnetic relay provides that all of the excitation circuits can be connected to a constant voltage source in parallel relative to each other...
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5105329 |
Apparatus for driving the armature of an electric stapler
Solid state control circuitry for driving an electromagnetic armature of a battery operated electric stapler. The armature is activated by a trigger signal generated by a trigger switch which...
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5093756 |
Sequential-delayed power supplying circuit
The invention provides a sequential delayed power supplying circuit having the steps of driving the relay RY1 through a relay-driving part after delaying by the time-delay circuit the output of a...
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5012606 |
Shotgun gunlock
A solenoid current regulating circuit for use with shotgun gunlocks wherein the circuit provides a high activation current to flow momentarily to the coil so that the bolt of the solenoid...
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4998177 |
Electromagnetic solenoid drive apparatus in a vehicle
An electromagnetic solenoid drive apparatus for use in a vehicle for turning on an electromagnetic solenoid from a battery every time when a command switch is turned on comprises first and second...
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4981347 |
Electrically driving system for foldable outer rearview mirrors of motor vehicle
An electrically driving system for the outer rearview mirror erects or folds the mirror body by the operation switch for rotating the incorporated motor normally or reversively. The system...
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4918566 |
Electronic control of solenoid operated circuit breakers
An electronic controller, connected to a digital communication network, is responsive to commands from a master controller to control solenoid operated circuit breakers. The electronic controller...
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4908731 |
Electromagnetic valve actuator
A bistable electromechanical transducer is disclosed having an armature reciprocable between first and second positions, a permanent magnet latching arrangement for maintaining the armature in the...
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4903294 |
Low voltage operated coin relay
A coin relay adapted for use with an associated coin hopper mechanism particularly adapted for use in a microcomputer based deregulated paystation. The relay requires only minimum voltages to...
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4890188 |
Solenoid driver system
A solenoid driver system drives a solenoid, such as a solenoid in a glue applicator or any like apparatus incorporating a solenoid, and which requires control of the solenoid in response to a...
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4883025 |
Potential-magnetic energy driven valve mechanism
A bistable electronically controlled transducer having an armature reciprocable between first and second positions is disclosed including either a stressed spring or compressed air within a closed...
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4812945 |
Method and apparatus for providing autoranging for an AC/DC power management circuit for DC solenoid actuators
A method for providing a power management for a DC solenoid actuator includes the steps of initially supplying a first number of DC current pulses to the actuator and after a first time interval...
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4787008 |
Electronic latch circuitry
A relay coil associated with a pair of contacts connects an electrical source to a load. Actuation of a coil sensing element by a trigger input signal supplies current to the coil. In response to...
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4777556 |
Solenoid activation circuitry using high voltage
Solenoid activation circuitry utilizing a high voltage for energizing a low voltage solenoid from a low voltage source of power comprising a capacitor having first and second terminals with the...
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4758918 |
Advanced latching circuit
An advanced latching circuit (14) is used for latching a compressor (16) to a power source (18). The circuit includes the solenoid (32) of a compressor relay. A first set of contacts (28) of the...
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4745516 |
Safety floor and sweep with line power
A mobile storage system includes movable carriages that are stoppable by solenoid operated mechanical safety brakes. The solenoids are controlled by an electrical circuit that includes a safety...
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4731728 |
Postage meter with means for preventing unauthorized postage printing
An electronic postage meter which has a computer and apparatus for printing a postage value, wherein the computer includes instrumentalities for authorizing printing the postage value, and has...
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