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WO/1990/009518 |
The invention concerns a circuit arrangement and a process for operating an electromagnetic consumer (1) on a supply voltage (4), with a switching element connected in series to the consumer (1) and an energy-supply circuit (9) which acc...
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WO/1990/007787 |
The present invention concerns a contactor (2) for the mutual connection and disconnection of plants and loads as well as a method for controlling the contactor. The contactor (2) comprises a frame (8) of the contactor; an at least two-p...
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WO/1990/006237 |
A method and apparatus for a two-pulse solenoid embossing system implementing an amplitude feedback circuit, i.e., current monitor (48), to provide precise amplitude and timing control over two current pulses (4, 5), and thereby provide ...
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WO/1990/004715 |
A driver circuit (26) for first and second coils (30a, 30c) includes first and second selector switches (36a, 36c) coupled in series between first terminals (32a, 32c) of the coils (36a, 36c) and a first common junction (38), first and s...
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WO/1990/003655 |
Electrical switching circuit comprising an electromagnetic relay (20a, 20b) and a bidirectively controlled contactless switch (21), being able to make and break capacitive, inductive or pure resistive loads (22), without forming arcs, an...
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WO/1989/007831 |
A circuit arrangement for cyclic supply of an electromagnetic consumer, with a control device actuated by a control signal equal to the difference between the instantaneous signal to the consumer and a given guiding signal, comprises a c...
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WO/1988/003286 |
A relay switch (SW) in an AC main line has a DC-powered amplifier (AMP) for applying amplifier control sensor signals to the control circuit of the relay switch. To provide DC power for the amplifier when the relay switch main controlled...
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WO/1988/002544 |
A solenoid driver control circuit in which solenoid current is sensed comparator means comprising two separate comparators (24, 25) receives the solenoid current sensed signal (45) and maximum and minimum reference threshold levels which...
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WO/1988/000406 |
Reed switches (1) are commonly used for protecting circuits from a predetermined fault. A problem occurs from the tendency of the movable contact (5) of the reed switch to hesitate or hang up between the closed and opened state when expo...
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WO/1987/007347 |
For driving the gears of motor vehicles, pressure regulators are used, the inductances of which are triggered by a changeable pulse sequence in order to obtain the desired pressure adjustment. In order to avoid interference in a sure and...
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WO/1987/005662 |
Process for controlling the excitation time of electromagnetic systems, in particular electromagnetic valves in internal combustion engines, in which the excitation current i = i(t), based on a high holding current for a specific duratio...
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WO/1987/003548 |
An adaptive switching circuit for switching electrical power to a load, such as turn indicator lamps in a motor vehicle. The switching circuit comprises load switching means (17, T3) for conducting electrical power to the load upon actua...
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WO/1987/001765 |
A solenoid driver control circuit for use with solenoids, the circuit including a current sense unit (12) for providing a current sense signal and a solenoid drive unit (13) for selectively allowing current to flow through the solenoid (...
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WO/1986/005932 |
An integrated circuit comprising a series pass transistor (20) for sourcing current from the positive side of a battery to an inductive load (18) includes integrated circuitry for providing a direct current conduction path between ground...
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WO/1986/005330 |
A circuit arrangement for connecting a plurality of users to a supply network which makes it possible to select one of the users (master) and also puts into or out of operation the others (slaves) by means of its main switch.
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WO/1986/002504 |
Vending machine power switching apparatus (20) in which a single power switching circuit (29) is associated with a plurality of load selecting relay switches (22, 23, 24) and a switching control circuit (25), in which the control circuit...
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WO/1986/001332 |
Control device for the electromagnet coil of a switching apparatus, comprising a MOS transistor switch (12) in series with the coil (B), a double alternation rectifier (11) supplying the coil, a signal regenerator having a closed-loop co...
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WO/1985/000924 |
An apparatus (10) for controllably operating at least one solenoid coil (12) in a battery operated system. The mean voltage applied to the coil (12) is controlled in response to at least the battery voltage, facilitating the use of vario...
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WO/1984/002808 |
This invention pertains to an apparatus (10) for monitoring and protecting a plurality of contactor coils (14A-E) and coil drivers (16A-E) from damage owing to short circuits, and preventing the concurrent energization of more than a pre...
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WO/1983/000771 |
A driver circuit for inductive loads is desired which is capable of delivering large amounts of average current but has only minimal power dissipation requirements, is self-protecting and suitable for being embodied in monolithic integra...
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WO/1982/002794 |
A driver circuit for inductive load devices is desired which can provide multi-level current to the load, is T2L compatible, can be provided at a reduced component cost and has on chip thermal protection. A single monolithic integrated c...
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WO/1982/002115 |
Electronic device for the energization of an electromagnetic element, particularly a troke-coil or a coil of an electromagnetic switching apparatus having a magnetic circuit with a coil, a yoke and an armature. A comparator (5) receives ...
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JP2012016091 |
To prevent locking due to a contact projection of a relay 74 and to prolong the life of the relay 74.A control portion 130 has a function for outputting a relay control signal which ON/OFF-controls a contact point of a relay 74 and a mot...
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JP2012002221 |
To enhance the degree of freedom by controlling an interval of closing a contact during starting operation.The starter includes a double contact electromagnetic contactor 10 having an electrically controllable micro actuator of the micro...
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JP2012003954 |
To provide an electromagnetic relay capable of reducing noise and vibration during its turning-off without affecting the operating characteristics of its turning-on and turning-off.A electromagnetic relay 1 includes a magnetic repulsive ...
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JP2011253738 |
To solve such a problem that it is difficult to discriminate whether or not the respective relays are in a fused state under a configuration in which a plurality of the relays (movable contact) are integrally driven.A fusion detection de...
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JP2011249212 |
To provide a relay drive circuit capable of greatly reducing current consumption according to a usage method by accelerating a starting speed without being accompanied with largeness and an increase in cost.A current/voltage control elem...
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JP2011250515 |
To enable to detect all of adhesion in a positive electrode side switch, adhesion in a negative electrode side switch, electric leakage in a positive electrode side of a power storage device, and electric leakage in a negative electrode ...
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JP2011238423 |
To provide a signal switching circuit and a control method of signal switching capable of surely removing non-conducting membrane on a relay contact in the signal switching circuit kept in an immobile state for a long time.In the signal ...
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JP2011228110 |
To enhance the reliability and safety while reducing power consumption of an output relay.In a contact output device, the power saving of an output relay 2 is performed by supplying a rating current to a coil RY of the output relay 2 and...
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JP2011228274 |
To provide a relay drive circuit which can provide stable operation.The power supplied to the primary winding of a transformer 1 from a DC power supply connected thereto is modulated based on a continuous pulse supplied from a microcompu...
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JP2011229099 |
To detect the presence of a state in which a D.C. voltage is to be supplied and place a main power supply circuit in a continuously turned-off state.When a positive D.C. voltage is supplied, a transistor Q1 is placed in a turned-on state...
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JP2011222235 |
To reduce a circuit size of a power supply controller that performs on/off control of a main power supply circuit by performing on/off control of a plurality of relay switches.A power supply controller 1 comprises: a coil 2a, one end of ...
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JP2011216229 |
To avoid noise generation while reducing self-heat generation with a coil current in a relay driving circuit.A relay (4) has such current characteristics that a coil current flowing in a relay coil (7) when turning-on from an off-state i...
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JP2011215131 |
To provide a relay failure detection device which can detect a relay failure without wasting electric power, and a power device, an image forming apparatus, a relay failure detection method, and a relay failure detection program.The rela...
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JP2011210385 |
To provide a relay control device, capable of preventing a conduction failure of an electromagnetic relay, by ice particles due to dew condensation occurring in a relay contact point inside the electromagnetic relay.In this relay control...
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JP2011210687 |
To achieve a fail-safe slow release relay circuit stable in a slow release time.The slow release relay circuit includes: a switch circuit 30 which is series-connected to a coil R of a relay 50 and carries out conduction/cut-off switching...
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JP2011210546 |
To provide a relay end-of-service-life forecasting device that can accurately forecast the end-of-service-life of an electromagnetic relay.By diagnosing the life of a relay 10 based on the time from when the application of power to the r...
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JP2011204555 |
To implement low power consumption with a mechanical contact switch installed on a power feeding path to a load being of a latching type.On the power feeding path to the load 3 from a power supply 2, one series circuit and the other seri...
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JP2011192614 |
To reduce the number of parts for a power supply system for a hybrid vehicle.When the system is started, a surge current at a system start is suppressed first by energizing an electrical circuit for the power supply system through a resi...
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JP2011182530 |
To detect the connected state and the non-contact state of a vehicle side load while connecting the vehicle side load directly without using a connection detecting plug or connector in the connector for connecting the vehicle side load.A...
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JP2011160654 |
To provide a switch mode power converter which is small, inexpensive, and efficient.An applied voltage to a load is controlled by a relay K1 connected between a plug J1 of a line voltage terminal of an alternating-current power supply ha...
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JP2011129516 |
To provide a switch module regarding a micro-electric mechanical switch structural body.The device has an electric mechanical switch structural body 102 that is constituted to move between an opening constitution and a completely closed ...
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JP2011129268 |
To review components of a magnetic contactor, such as an operation power supply, an exciting coil, and a control system, to reduce power consumption, facilitate miniaturization and cost cut, increase reliability, and achieve the same eff...
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JP2011129479 |
To provide a heat generation control circuit of a relay circuit that can reduce a heat value of an exciting coil when the relay circuit is operated.A resistance R1 is provided between the exciting coil Xc and ground, and a diode D1 is pr...
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JP2011119228 |
To provide a hybrid relay capable of preventing a semiconductor switch from getting highly heated.The hybrid relay is provided with a mechanical contact switch 12 with its contact switched by a driving unit, and a semiconductor switch 13...
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JP2011113781 |
To prevent circuit-break of a relay from occurring due to a falling of the voltage applied to a relay coil to below the open-circuit voltage when causing a power source voltage drop at the time of a power-on of driving power source of an...
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JP2011113864 |
To provide a fail safe relay driver circuit which maintains fail safe characteristics, does not use a feedback loop to control the driving voltage of a relay, and can obtain the output of a stable driving voltage.In the circuit where a c...
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JP2011096540 |
To provide a remote controllable switch driving device reducing power consumption for actuating the switch driving device and capable of a reliable bidirectional operation in opening and closing directions.In the remote controllable swit...
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JP2011091440 |
To provide a safety switching device capable of flexibly connecting each switching device without further wiring it.This safety switching device includes: input modules (18) for processing a signal from a safety transmitter (20) and for ...
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