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JP2004362944 |
To provide a relay driving circuit capable of holding and switching the contact connection of an electromagnetic relay by setting an input terminal at a prescribed logical level.In this relay driving circuit 101, if the logical level of ...
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JP3630032 |
To provide a low-cost relay driving device having a relay contact less liable to deterioration. This relay driving device drives a relay coil 4 so that the relay contact 3 is opened or closed when an AC power supply 1 is at or near zero ...
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JP2004362992 |
To prevent contact bounce from occurring when bringing a reed relay into an on state.This driving circuit for the reed relay 30 is composed of a reed switch 10 having a pair of contact pieces and an exciting coil 20. When performing a co...
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JP3631662 |
To ensure fixation of the contact output of a latching relay at power- off. This latching relay driving circuit comprises a tristate type logic circuit 1 for outputting a set pulse 101 for driving the latching relay 2 and a reset pulse 1...
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JP2004355249 |
To provide an actuator driving apparatus which performs an accurate detection of wobbling, drives keeping stability with most suitable driving frequency, and can synchronize the wobbling of the movable portion of the actuator with the ot...
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JP2004335436 |
To provide a DC relay having a simple structure and small size and capable of blocking out DC in a short time.This relay is provided with three contact pairs of first, second and third. The first contact pair A, B switches a circuit conn...
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JP2004334191 |
To prevent undue wear on a micro electromechanical system (MEMS) device when the MEMS device is updated with the same data.A micro electromechanical system (30) has an electrostatically-controlled micro electromechanical system (MEMS) de...
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JP2004320904 |
To provide a battery system capable of contributing to arc reductions during shutting down an electric power to a load without using a relay with a complicated structure.This battery system 1 is provided with a battery capable of electri...
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JP2004311390 |
To provide a DC relay capable of blocking DC high voltage in a short period of time while compacted with a simple structure.The DC relay is equipped with an input contact 1, an output contact 2 and an intermediate member for enabling bot...
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JP2004311132 |
To provide a detector for automatically detecting the welding of contacts of an electromagnetic contactor formed in a drive circuit for a driving motor of a hoist crane or the like or other loads, and failure of a push-button switch for ...
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JP2004312334 |
To eliminate a restoration defect which is a problem in a conventional timer by arranging restoration voltages of a time limit circuit, an output relay and a thyristor for drive at the same levels.In a DC rated timer composed of the outp...
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JP2004306159 |
To provide a control device for an industrial robot of high safety, which impresses brake releasing voltage at a plurality of serially connected contact points, and has at least one of the contact points set as a normally opened relay co...
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JP2004303691 |
To provide a melting adhesion determining device and a melting adhesion determining method wherein melting adhesion of a plurality of relays connected with a circuit of a positive electrode side of a secondary battery can be identified a...
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JP2004297866 |
To check the ON/OFF of a switch and keep safety without providing a protective device with a protective circuit separately.This protective device is provided in one part of the path for parts that electromagnetic type switches 1 and 2 co...
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JP2004288502 |
To prevent an operation circuit of an electromagnetic switching device from such a trouble that an induction current flowing in a reversed direction against the direction of a current flowing through a coil at an exciting side is generat...
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JP2004289964 |
To provide an automatic power supply multiplexing apparatus which changes a plurality of power supplies and automatically connects them to a load, wherein the power supply connected to a load can be automatically recognized.To connect a ...
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JP2004279421 |
To provide a detecting device for ensuring that inductive loads, such as solenoid is properly connected and operating, without inviting labor time or high cost.In this device, pulse width modulated (PWM) signal 62 is applied to a [H] vol...
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JP2004281348 |
To enable high density packaging of a circuit board having relays, in which connection to a plurality of loads is exclusively controlled by using a plurality of relays.The electromagnetic relay device comprises a first electromagnetic bl...
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JP2004253281 |
To provide an alternating current operation type electromagnetic relay provided with a noise control function.A capacitor 14 is connected between coil power supply input terminals 2, 3 of the electromagnetic relay 1 and a diode bridge re...
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JP2004234207 |
To provide a relay control circuit, a relay circuit using it and a relay control program for preventing welding of switch contacts by preventing chattering generation in a relay, and for preventing the generation of excessive arch discha...
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JP2004221985 |
To latch a relay without using a latching relay.A relay latching circuit by this invention is composed of a photocoupler (1) to which a relay drive control signal (2) is inputted, transistors (Q1, Q2) provided between the photocoupler (1...
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JP2004190606 |
To provide a vehicle starter device capable of positively driving a starter motor to start an engine even if a 42V battery is used.This vehicle starter device for rotating the starter motor installed on a vehicle and driving a pinion gea...
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JP3570212 |
To provide a relay drive device which opens and closes relay contacts in the neighborhood of the zero potential of AC mains, wherein the time from the contacts being closed or opened till the position with zero potential can be approache...
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JP2004186052 |
To surely detect attraction state of a moving iron-core without using a position sensor or a timer, and enable to carry out switching from closed way control to suspended control.In a pulse generating circuit 18, the on/off signal for th...
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JP3569830 |
PURPOSE: To perform an easy sensing of a melt adhesion of a relay switch or an open trouble and a broken line of a relay coil or the like and prevent any inconvenient state caused by its abnormal state from being expanded when the abnorm...
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JP2004183590 |
To provide a stabilizing circuit of a magnet switch for a starter whose two contact points are opened to stop operation of a motor part, by preventing passage of current to a pull-in coil and a holding coil to surely reset a plunger to a...
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JP2004176732 |
To provide a device with an interlock circuit formed not to apply a load on contacts and capable of suppressing an inrush current when an interlock is turned on (protection of relay contacts) and a voltage variation in a power supply lin...
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JP2004178964 |
To provide an electric leakage safety device enabling a load side electric device to continue a safe operation when a leak is generated.The electric leakage safety device comprises a leak detection means 40 arranged at power supply lines...
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JP2004178967 |
To provide a relay control device for a controller of an electromotive power steering device or the like restraining self-heat generation of a relay coil, improving reliability of a relay under the circumstance of high temperature, and c...
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JP2004166357 |
To provide a controller for an automatic machine in which power is supplied, with high reliability, to the driver of the automatic machine while ensuring safety with no trouble.The controller for an automatic machine comprising a circuit...
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JP3560083 |
To automatically perform the start of a self holding circuit by turning-on a power switch, by using the signal generated by the turning-on of the power switch or a signal making use of this, as a signal for driving a switching element. A...
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JP2004146096 |
To provide a practical relay drive unit capable of easily realizing quieting down of a relay without a structural remodelling.The relay drive unit is structured of a voltage setting circuit 2 capable of impressing an on-state stipulated ...
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JP3551477 |
PURPOSE: To prevent the damage of peripheral parts by reverse surge so as to improve the reliability by lowering the voltage to be applied to a solenoid coil by the program of a controller. CONSTITUTION: A controller 1 is changed over in...
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JP2004134370 |
To provide a switch with improved signal transmission property, high response speed, low power consumption, and low driving voltage, and to provide a manufacturing method of the same.The switch comprises a movable body 2 connected to an ...
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JP3543127 |
PURPOSE: To prevent a wiper from stopping on a wiping face and to stop the wiper in the predetermined position when it is not used by stopping the wiper after continuing operation of the wiper to the predetermined stopping position even ...
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JP3543093 |
PURPOSE: To prevent a wiper from stopping on a wiping face and to stop the wiper in the predetermined position when it is not used by stopping the wiper after continuing operation of the wiper to the predetermined stopping position even ...
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JP2004111240 |
To provide a relay contact protecting circuit having little power loss, capable of preventing a spark at a relay contact from being generated for any load.An electromagnetic relay 12 has a contact 18 to connect a power source 14 to outpu...
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JP2004103342 |
To control a relay group including 2-coil type relay used for a power supply control circuit by using a more compact or simplified control circuit.A coil 260 for a plunger suction of the main relay 230, a coil 266 for the plunger suction...
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JP2004103559 |
To suppress the generation of noise as little as possible to enhance reliability.The MEMS device is equipped with a light emitting circuit 2 containing a light emitting element 2a and emitting light; a light receiving circuit 5 having a ...
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JP2004103309 |
To provide a relay driving circuit compatible with a wide range of power supply voltages and easily built into a small-size apparatus.The circuit includes a full-wave rectifier circuit 7 for full-wave-rectifying an AC voltage and a trans...
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JP3536716 |
To precisely detect the fusion of a relay with simple constitution. Discharge of the charge accumulated in a capacitor 20 is started by controlling the switching element of an inverter 12 in the condition that relays 16 and 18 are switch...
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JP2004095213 |
To provide a relay drive control device suppressing unpleasant abutting noise when a relay is driven and to prevent deterioration of a contact by preventing the occurrence of chattering due to contact bouncing.In the relay driving contro...
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JP3533490 |
To provide a motor driving device compact, low in cost and accurately actuating the motor even in the case of the occurrence of a submergence accident. A C-terminal of a contact part 3b of one relay 3 for actuating a motor 1 in a normal ...
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JP2004077251 |
To provide a performance test system of protection relays for accurately and safely implementing a performance test of the protection relays respectively built in a plurality of distribution panels in a short time.In the distribution pan...
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JP3528683 |
To reduce current capacity, suppress the heat generation, and prevent adverse effects on the peripheral components by connecting DC constant voltage circuits in series and feeding load current from the respective circuits to a control me...
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JP3527630 |
To provide a detecting device of fusion of an electromagnetic contactor and failure of a push button switch capable of reducing failure, keeping stable performance over a long period of time, and detecting fusion of the electromagnetic c...
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JP2004063267 |
To suppress inrush current without increasing power consumption or the size of an apparatus.An inductor 4 is inserted in an A.C. input line of a commercial power source 1, and the output timing of a relay drive signal VRY outputted from ...
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JP2004063181 |
To provide a relay capable of shortening the distance between contacts and miniaturizing the relay itself, and sufficiently retaining insulation even when high voltage is applied, to provide a manufacturing method of the relay, to provid...
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JP2004055497 |
To detect and release welding between a fixed contact and a movable contact.This is an electromagnetic relay for high voltage and large current that comprises a yoke 46 which is arranged on the outside of a coil bobbin 41 and to which a ...
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JP2004032903 |
To diagnose faults in the relay of a battery power supply line, without making a motor drive operate imitatively.In an electrically-propelled vehicle where a battery 14 and a motor generator 12 are connected with each other via a relay 1...
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