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7612978 |
Three wire drive/sense for dual solenoid
A dual-acting solenoid, consisting of one armature moving between two latching positions against two yokes with two drive windings, is interconnected to bring out three wire terminations: a center...
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7595971 |
Sensing armature motion in high-speed solenoids
The invention relates to a technique for discerning a status of an armature of a high-speed solenoid at any time during its operational cycle. In high speed solenoids, motion of an armature does...
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7580236 |
Electronic device for controlling actuators
A device ( 1 ) for controlling inductive loads ( 111, 112 ), includes:
several control stages ( 321, 322 ) having a bonding pad ( 331, 332 ) for an inductive load ( 321, 322 ), a receive...
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7576647 |
Self-powered long-life occupancy sensors and sensor circuits
Occupancy sensors are provided that do not require an external power source in order to operate. The sensors operate with a low voltage non-rechargeable battery and are fully functional for at...
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7546479 |
Robust power sequencing management solution for notebook computers
For sequencing of power rails, a plurality of switches, which operate independently of each other, are operable to control delivery of power from an input power rail to an output power rail. The...
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7423555 |
Human-machine interface apparatus with expanded function
A human machine interface with expanded function includes a panel and a printed circuit board. A first key apparatus electrically coupled to the printed circuit board is mounted on the panel. The...
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7388735 |
Current inductive timer socket
A current inductive timer socket comprises: a principle relay circuit including an output relay and a voltage input terminal, a reed relay circuit including a capacitor, a plurality of diodes, a...
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7336470 |
Solenoid drive apparatus and drive method
A solenoid ( 30 ) has one end connected to the ground G and the other end connected to an N-MOS transistor ( 33 ) which applies current from a battery ( 31 ) to the solenoid ( 30 ). On the other...
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7330344 |
Method for driving actuators
A method for driving a plurality of actuators having an output stage having multiple channels, by way of whose channels boost currents are conveyed to the actuators. In this method, a check is made...
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7248453 |
Circuit and method for controlling current flow through a solenoid
A solenoid control circuit that includes two switching networks that are selectively opened and closed in a current limit cycle to control the magnitude of the current flowing through the solenoid....
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7075769 |
Next connect electrical receptacle assembly
An electrical assembly including a plurality of electrical modules, each of the plurality of electrical modules being sequentially electrically connected to at least one other of the plurality of...
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7067940 |
Submarine branching unit having asymmetrical architecture
A branching unit for use in submarine systems that includes a ground termination; first, second, and third cable terminations each coupled to a power feed line of a respective submarine cable; a...
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7023683 |
Electric relay control circuit
A circuit and method for controlling two or more electric relays, wherein at least one of the relays are rated to handle a higher voltage level while at least one of the relays are rated to handle...
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6967549 |
Method and apparatus to control modular asynchronous contactors
A modular asynchronous contactor assembly includes a contactor for each phase or pole of an electrical device. The contactor assembly is applicable as both a switching device and an isolation or...
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6961856 |
Personal computer protection device
A personal computer protection device for disconnecting a computer system from a communications channel during power down periods. The personal computer protection device includes a power sensor...
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6917506 |
Control apparatus for master/slave outlets
A control apparatus for master/slave outlets having a current sensor, a driver, a large current switch component and a direct-bucking type power supply such that the working power source required...
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6741442 |
Intelligent power distribution system
An intelligent power distribution system including one or more intelligent power strips. The power strips can each include an elongated housing that may be adapted for mounting in an equipment...
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6738250 |
Latchable relay
A solenoid-actuated latchable relay is controlled by a microprocessor that turns on at least one triac to selectively energize a solenoid coil with a desired polarity energization signal. The triac...
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6735069 |
Solenoid driver circuit
A solenoid driver circuit includes an idling control portion for applying a very low voltage less than an activation threshold value to a solenoid from a switching circuit; a computing portion for...
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6724606 |
Single-winding dual-latching valve actuation solenoid
A solenoid with two magnetically separate yoke regions, providing two distinct armature latching positions, is driven by a single effective winding. In one embodiment, the yoke regions consist of...
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6687112 |
Control system for an electrostatically-driven microelectromechanical device
The present invention relates to a control system for an electrostatically-driven microelectromechanical device, which uses multiple electrodes to control the microelectromechanical device, i.e....
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6611416 |
Safety relay circuit for large power contactors
An apparatus and method for monitoring main contacts and auxiliary contacts of a power contactor is disclosed. The apparatus includes four circuits, the first of which has an on state in which a...
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6559614 |
Electrical circuit arrangement for controlling an electromotor in a motor vehicle
An electrical circuit arrangement for controlling a unit, such as an adjustment system for windows or a sliding sunroof, that is driven by a motor and is situated in a motor vehicle. The...
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6509658 |
Device for the automatic shut-off of equipment's stand-by power
The present invention relates to a device for the automatic shut-off of equipment's stand-by power which can switch on or off the power for a set of electric and electronic appliances and can...
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6507472 |
Transmission control circuit
A transmission control circuit 10 which is adapted for use with an electronically controlled transmission having several transmission control solenoids 12, 14 and 16 and a selectively...
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6426858 |
Voltage conditioner and switching device
The present invention is a voltage conditioner and switching device applied to alternating current relays. An electronic circuit and direct current (DC) relay to overcome material, mechanical,...
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6414833 |
Multiple actuator control circuit
An energy efficient multiple actuator control circuit is disclosed comprising a timing-slicing circuit for arranging and processing a pulsed select signal into a plurality of staggered pulse...
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6388860 |
Dual switch control system
A quick stop circuit for a spring applied quick stop mechanism coupled to an electrically operated actuator includes a dual quick stop switch which includes a simultaneously operated normally open...
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6366434 |
Apparatus for safely disconnecting an electrical load from an electrical DC voltage supply
An apparatus for disconnecting an electrical load from an input DC voltage includes first and second lines which carry the input DC voltage to the electrical load. A fuse is connected in series in...
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6347030 |
Battery supply control unit
A disclosed battery supply control unit comprises a large current relay in which an excitation current continuously flows when it is in its connecting state and a small current relay in which a...
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6324046 |
Actuator circuit for dual-solenoid gas valve
An arrangement for driving a pair of actuator solenoids or coils of a gas valve having two or more solenoids employs a microprocessor or similar controller and an driver circuit. An output terminal...
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6301091 |
Relay configuration
A safety relay configuration for linking a power source to a device to be powered via at least one output wherein output contacts all have to be closed to provide power to the device, the...
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6266225 |
Method of programming relay based connectors
A method of programming one or more relay based electrical devices comprises the steps of selecting an electrical device to program, switching the relay from a first state to a second state, and...
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6249420 |
Method of arranging several relay functions and a multiple relay arrangement configured in accordance with the method
A multiple relay arrangement comprises a common fixed part having permanent magnets, a common movable part having permanent magnets, and fixed coils having magnetically actuable movable cores...
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6246564 |
Activating device
An actuating device for a motor used in a power window of an automobile which can drive the motor reliably to open the window even when the automobile is submerged in water. This device has a...
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6111326 |
Control circuit for opening/closing device in a vehicle
There is provided a control circuit which can perform a control of opening and closing an opening/closing device, a sun roof in a vehicle, or the like. Usually, an I UP direction current is...
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6104583 |
Overcurrent protection systems
An overcurrent protection system containing (1) a current sensing means; (2) a first switch coupled to the current sensing means; (3) a voltage sensing means; (4) a PTC device; and (5) a second...
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6075690 |
Relay multiplexer system and method for improved debounce of relays
A system and method for controlling relays. The method may comprise receiving one or more input commands for a plurality of relays, with the plurality of relays including a first relay, and a last...
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5999395 |
Monitoring circuit for a constant monitoring of a plurality of signal inputs
A monitoring circuit which allows for the complete monitoring, at short intervals, of several signal inputs and consequently of signal outputs without having to take into account external...
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5941106 |
Electronic remote controlled lock
An electrical circuit that includes a ferrous plunger operated by electrical coils and pulses current. One end of the plunger extends and retracts into contact with an adjustable latch such that...
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5923103 |
Switched-output controller apparatus with repeater function and method for constructing same
An electronic switched-output controller apparatus comprises a plurality of relays for providing a plurality of controlled switched outputs, the relays being selected from the group consisting of...
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5889645 |
Energy preservation and transfer mechanism
An arrangement for driving actuator coils for two or more driven devices employs a microprocessor or similar controller and an actuator driver circuit. The actuator driver circuit controls two or...
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5831803 |
Overcurrent protection circuit
A circuit protection system employing arrangements of PTC devices and mechanical switches. The PTC device is not involved in the circuit until a fault is sensed. A current sensing relay senses an...
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5831345 |
Priority relay circuit with timer
A priority control system is disclosed for controlling multiple secondary load devices, and one priority load device. The secondary load devices can be randomly controlled at any time, except when...
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5825102 |
Fail-safe circuit
A fail-safe circuit (10) comprises a storage battery (11) for electrical charges as well as a first charge path (12) which optionally connects the storage battery (11) to a first potential (UL). A...
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5811892 |
Power supply system including mechanical output switches for use with a plurality of display tubes
A low voltage power inverter utilizes reed switches to control a number of display tubes. The reed switches are controlled by magnetic coils or permanent magnets. The magnetic coils receive a...
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5771146 |
Safety circuit
Safety circuits with an actuating device for electrical appliances, where the actuating device is capable of being operated by means of two key buttons or switch stacks are of use in many different...
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5691873 |
Apparatus to generate magnetism
The present invention is to provide means to attain an improved current efficiency and a stabilized operation even when used to generate high-power magnetic pulses at shortened pulse intervals. The...
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5689398 |
Redundant control relay circuits
Improved redundant relay control circuits are set forth which prevent a load from being energized when any relay coil or contact or stop or start switch contact fails. A first circuit embodiment...
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5687052 |
Flexible variable pole-count relay output circuit for controlling multiple relays
A controller for controlling equipment in response to control signals received by the controller. The controller includes control line inputs, a switching arrangement, control outputs and binary...
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