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JP2021187426A |
To provide a system which can reduce consumption of electric power of an external battery in an external relay and so on.A system comprises: an external relay which performs switching between startup impossible state and startup possible...
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JP2021185450A |
To determine a failure of a relay short circuit by suppressing the number of times the relay is switched on and off.A relay failure detection circuit comprises: a first voltage acquisition unit that acquires the AC voltage input to a pow...
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JP6974395B2 |
To prevent degradation of a relay contact due to arc discharge at the time of opening of the relay contact.A relay control device generates a relay control signal (Sc) which opens a relay contact at a predetermined delayed timing (period...
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JP6971497B2 |
Method and apparatus for a mechanical latching of at least one pole of a relay selected from SPST, SPDT, DPDT, reversing DPDT, multi pole MPST and MPDT using a mechanical latching device attached to or actuated by an armature for pulling...
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JP6973365B2 |
A relay state determination device (10) according to the present invention includes: a voltage value acquisition unit (22) that measures every moment a detected voltage detected from two ends of a shunt resistor (9); a voltage value diff...
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JP6962441B2 |
Provided are: a submarine cable system with which it is possible, with a simple configuration, to acquire the state of each of a plurality of high-voltage relays in a branching device; the branching device; and a state response method th...
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JP6958764B2 |
Provided is a vehicle mounted charging device which can prevent condensation on a relay contact and freezing of the relay due to the same. A vehicle mounted charging device 10 comprising: an AC/DC converter 16; a condenser 20 which is ...
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JP6941433B2 |
To detect a failure of a switch included in an electric path in a state in which energization of the electric path between devices is maintained.A switching system 1 includes a parallel electric path RS having two or more parallelly conn...
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JP3234113U |
To provide a chip type switching device having various switching operations. A chip-type switching device includes at least one input pad PIin (36), a plurality of control pads PVin1 to PVin4 (23, 26, 5, 8), and a plurality of output pad...
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JP2021131963A |
To provide a control device of a power supply circuit capable of determining deterioration of a relay.A power supply circuit 200 includes a first battery 10, a relay 20, a second battery 12, and a second converter 30 that boosts the powe...
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JP6933786B1 |
To provide a contact state detection method of an watt-hour meter and a switch drive circuit of a watt-hour meter capable of detecting the contact state of a switch and grasping an accurate opening / closing operation number. The amount ...
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JP6928202B2 |
To provide an OCR tester which is operated by a battery and is excellent in operation stability.An OCR tester 1A or 1B includes a battery 2 for a power supply, a test current source 3 for supplying a test current to an overcurrent relay ...
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JP6925093B1 |
Provide relays and the like that can easily prevent the occurrence of defects. The relay RS includes a fixed contact 41, a movable contact 42, a return member 42b of the movable contact 42, and a case 46 that covers the fixed contact 41,...
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JP6924751B2 |
A switching system includes a control circuit that receives On-Off signals indicative of a desired operating state of a switch. The control circuit includes an oscillator that generates a first electrical pulse responsive having a first ...
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JP6921123B2 |
An apparatus for detecting a failure of a battery pack using an independent ground unit and a method thereof are disclosed. A battery management system through a distributed operation according to the present invention includes a first b...
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JP6915942B2 |
The present invention relates to a technology that monitors a normal operation state through whether the flow of minute current is maintained in real time when a latch relay is turned on and allows the latch relay to be forcibly turned o...
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JP6917367B2 |
A switching system includes a MEMS switching circuit having a MEMS switch and a driver circuit, and an auxiliary circuit coupled in parallel with the MEMS switching circuit that comprises solid state switching circuitry. A control circui...
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JP6917394B2 |
A safety switching device for the fail-safe disconnection of an external consumer has an internal consumer and switching elements for connecting in parallel the internal consumer with the external consumer. Read-back taps are arranged be...
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JP6915410B2 |
A miniature and inexpensive relay device is provided. A relay device, i.e., a relay unit (1), includes a breakdown detection unit (41) that does not detect breakdown of an operation of a first switching element (20) and detect breakdown ...
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JP6901887B2 |
To provide a power electronics device which is capable of exchanging a switch at suitable timing.An electronics device 100 comprises a switch 102 and a deterioration estimation part 110. The switch 102 includes a contact point for mechan...
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JP6900391B2 |
An example circuit arrangement and method for actuating an electromagnetic drive system for electromechanical devices is disclosed, the example circuit arrangement including a mechanically locked end position, a control voltage source, a...
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JP6885559B2 |
To provide a control device which performs self-check of a relay capable of preventing erroneous determination of the abnormality of the relay, when performing self-check for checking welding of the relay.A control device performs self-c...
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JP2021086781A |
To provide a relay device capable of suppressing the generation of unintended current.There is provided a relay device that is applied for a vehicle in which electric power can be supplied to a winker lamp from a battery without through ...
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JP2021075136A |
To reduce power consumption by inhibiting execution of unnecessary anti-freeze control while preventing icing of a relay.In a case where a relay contact is closed due to a vehicle system start request made while there is, within the most...
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JP2021077447A |
To provide a hybrid relay which cuts off current without arc and has high insulation resistance, high withstand voltage and surge resistance characteristics.A hybrid relay includes a semiconductor switch and a mechanical switch having hi...
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JP6869257B2 |
A device for measuring a condition of an electric switch, an electric switch and a method for measuring a condition of an electric switch are disclosed. In an embodiment an apparatus for measuring a state of an electrical switch is confi...
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JP2021067847A |
To prevent a deterioration of a relay, and appropriately estimate the time to replace the relay.An image forming apparatus comprises: a fixing device that fixes a toner image on recording paper; a triac 44 and a relay 43 that are inserte...
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JP6866446B2 |
A coil control device of an electronic magnetic contactor, comprises: an input power processing unit configured to convert and output an input power into a direct current power; an input voltage detecting unit configured to detect a volt...
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JP2021061774A |
To provide a cold salt water treatment device that can detect welding of a contact of a relay at low cost.A cold salt water treatment device 100 comprises: a treatment tank 1 for storing cold salt water; a cooling device 5 for cooling th...
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JP6859210B2 |
To reduce possibility of sticking of contacts of multiple relays, when changing over to cut-off state.A relay unit 10 has multiple relays 19, 20 and a controller 24. The multiple relays 19, 20 include a first relay 19. The multiple relay...
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JP2021057981A |
To provide a sticking detector and a sticking detection method capable of accurately detecting a stuck-open of a secondary relay.A sticking detector comprises a detection section and a determination section. The detection section detects...
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JP6852460B2 |
To more surely materialize an interlock technique with more simple structure.Each housing of electronic equipment having a plurality of housings, includes: a power source; a detection mechanism; a relay; a first power supply line; and a ...
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JP6851932B2 |
An object of the present invention is to prevent erroneous connection between an electric circuit device and a specific electronic component or element. A route selection system according to the present embodiment includes: a selection u...
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JP2021044102A |
To solve such a problem that a relay contact is deteriorated due to discharge generated when the relay contact is opened.In electric equipment, a zero-cross signal Sp becomes active during a period when an AC power supply voltage Pw is a...
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JP6844101B2 |
An apparatus for diagnosing a relay driving circuit includes a sensing unit configured to measure a first measured voltage, a second measured voltage and a third measured voltage respectively applied to one end of the first switch, one e...
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JP6834008B2 |
The objective of the present invention is to provide a relay-welding detection device and method, the device and method capable of determining, whether a relay is welded, by using an analog-digital converter (ADC). Another relay-welding ...
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JP6821676B2 |
A switching system includes a MEMS switching circuit having a MEMS switch and a driver circuit. An auxiliary circuit is coupled in parallel with the MEMS switching circuit, the auxiliary circuit comprising first and second connections th...
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JP6805810B2 |
A load driver includes a microcomputer controlling an ON-OFF switching of a first relay and a second relay. The load driver also includes a fourth switching element performing an ON-OFF drive of the first relay based on a drive signal fr...
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JP6800451B2 |
Provided are a circuit containing a relay switch (hereinafter referred to as RS) and a constitution and a method for achieving a reduction in the influence from a thermoelectromotive force in the operation of the RS. This control method ...
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JP2020187875A |
To solve a problem in which, in a case in which a relay failure is limited to a conduction failure, when the relay fails, an electrical device can be operated by driving a relay that has not failed, however, when an open failure occurs i...
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JP6783930B2 |
This microcomputer input switch exhibits little contact point electrical corrosion even when exposed to water and can detect an OFF state of a switch with certainty. The microcomputer input switch has a one-side contact point (6) and ano...
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JP6779239B2 |
A step-by-step electric relay structure of a bistable type, comprising a mechanical part and an electric part, the mechanical part comprising push-button means to be operated by a user and the electric part comprising coil means, capacit...
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JP6778122B2 |
PURPOSE: To provide a semiconductor device, a testing system, and a method of driving a relay capable of driving a plurality of relays without causing increase in device scale.CONSTITUTION: A semiconductor device comprises: a control ter...
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JP6776652B2 |
To prevent generation of failures in a relay when the relay in an open state is closed.A relay 40 is connected between an AC power supply 10 and a load 20. When a thyristor 80 is made conductive by a control circuit 100, the relay 40 is ...
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JP6772172B2 |
A safety switching device for fail-safely disconnecting an electrical load has an input part for receiving a safety-relevant input signal, a logic part for processing the at least one safety-relevant input signal, and an output part. The...
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JP6772011B2 |
To provide a technique enabling a power supply system to be simplified.In a power supply system 1, a resistor R1 is connected between one end of a power source 10 and one end of a capacitor C1 that is connected in parallel to a load 50. ...
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JP6773230B2 |
[Problem] To provide a fail-safe function for an operation of grounding a circuit to be grounded and for an operation of ungrounding a circuit to be grounded.[Solution] The present invention is provided with: a first contact in a first r...
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JP2020171187A |
To provide an overload protective relay for cutting off a load current with higher accuracy when an overload is detected in a load current of a motor.An overload protective relay 30 includes a current sensor 36 for measuring a load curre...
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JP6764539B2 |
Disclosed are an intelligent safety relay and a circuit applied thereby. The intelligent safety relay includes: a first processing chip MCU A, a second processing chip MCU B, first and second input driving circuits, first to third input ...
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JP6761836B2 |
A pulse control device 10 comprises: a switch output unit 100 which generates a pulse output voltage Vo from a direct-current input voltage Vi and supplies the pulse output voltage Vo to a load (such as a relay coil 21 of a mechanical re...
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