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JP2019146339A |
To provide an electric leakage safety device capable of preventing chattering even when an external power source and a power supply device of an apparatus are reversely connected with a simple structure, and a hot water supply device hav...
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JP6565566B2 |
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JP6538525B2 |
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JP6539354B2 |
The purpose of the present invention is to safely use a relay without causing a contact failure in an inrush prevention circuit of a power conversion device, said relay switching between a voltage at contact time and a voltage at hold ti...
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JP2019514337A |
It provides an improved relay protection system capable of detecting a short circuit to ground at the output of a relay. The relay protection system can bias the output of the relay. The output of the relay can be monitored to determine ...
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JP6523333B2 |
Provided are switch deterioration detection device and method. More particularly, the switch deterioration detection device includes: a resistor serially connected with a battery in which charge and discharge are controlled through a swi...
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JP2019077276A |
To provide a connection diagnostic system which detects an electric current between a switch gear and a power supply device, and controls erroneous judgement while performing connection diagnosis of the switch gear.A connection diagnosti...
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JP6512192B2 |
The present invention is intended to provide constant drive conditions of a relay switch. A relay drive circuit includes a current mirror circuit, a current suppression circuit 26, and a transistor Q3. The current mirror circuit includes...
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JP6504312B2 |
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JP6504311B2 |
There is provided an operation coil drive device of an electromagnetic contactor that ensures reliably detecting an attracted state of a movable iron core without a use of a position sensor and a timer. The operation coil drive device of...
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JP6488114B2 |
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JPWO2017199665A1 |
To provide a switching device capable of suppressing the occurrence of arc discharge in a small-scale configuration when power is cut without lowering the power efficiency at the time of power supply. A first switch for switching connect...
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JP2019033014A |
To achieve a power saving in deposition inspection of a contact point of a relay.A deposition inspection method of inspecting deposition of a contact point of a relay, comprises: a step of setting a voltage on a relay circuit side of a f...
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JP6460642B2 |
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JP6460215B2 |
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JP6459573B2 |
Provided is a relay unit that is inexpensive and has a long life, and a method for controlling a relay circuit. A series circuit of mechanical switches is connected in series to a load and a load power supply, and a control unit selects ...
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JP6458586B2 |
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JP6444749B2 |
Provided are a switch device, and a method for determining a short-circuit in a switch, in which it is possible to individually and non-destructively determine whether or not a short-circuit has occurred in a pair of switches even when a...
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JP6445699B2 |
Provided is a technique for performing failure diagnoses more frequently even in a case where the failure diagnoses are performed while a relay is cut off. An in-vehicle control device according to the present invention cuts off a relay ...
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JP6442013B2 |
The present invention relates to a relay (1), having a first terminal (2), a second terminal (3), a contact (4) which in a closed state brings about an electrical connection between the first and second terminals (2, 3) and which in an o...
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JP6435891B2 |
The reliability of testing a normally closed contact in a relay unit may involve the following. Sending a first test signal to the first normally closed contact and detecting a return state of the first test signal sent, sending a second...
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JP6428323B2 |
The reliability of testing a normally closed contact in a relay unit may involve the following. While the load is de-energized, sending a test signal to a normally closed contact (bl, b2) and detecting the state of the returning test sig...
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JP6424784B2 |
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JP2018181643A |
To provide an electric power unit capable of identifying relays that have become bad condition, in a constitution where relays are provided at both poles of a commercial power supply.A fixation device 300 includes a first relay 1 provide...
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JP2018170248A |
To provide a relay drive circuit capable of suppressing the influence of surge at the normal stop and avoiding welding of a relay contact at the abnormal stop.A relay drive circuit that controls the state of a relay that opens and closes...
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JP6403607B2 |
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JP2018156859A |
To provide a contactor welding determination device capable of avoiding excessive fail-safe in a case of light welding.A contactor welding determination device 10 that determines the presence or absence of welding of a contact point in a...
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JP2018152212A |
To protect a load in a circuit of an on-vehicle electrical component or the like by suppressing surge noise generated from an electromagnetic coil during off of a battery relay.A circuit for suppressing surge noise of a battery circuit i...
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JP6391899B1 |
The electromagnetic relay diagnostic device (100) includes an operation detection unit (1A) having a first light emitting unit that emits light when a current flows through the wiring (52) leading to the coil (51) of the electromagnetic ...
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JP6390454B2 |
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JP6391493B2 |
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JP6387886B2 |
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JP6388678B2 |
The invention provides a starter which can start an engine through a simple structure on the condition of no starter size increase, no starter output reduction and no instant shortcircuit of electrical equipment and electronic equipment....
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JP6387872B2 |
A relay control device is provided configured to reduce the amount of power supplied to a coil in an electromagnetic relay. The relay control device includes a control unit for generating and outputting a PFM signal to control the voltag...
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JP6385530B1 |
To provide a switch diagnostic device and a switch diagnostic method capable of determining a switch state with a relatively simple circuit configuration. A switch diagnostic device 1 is connected in series with a first switch 21 connect...
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JP6382473B1 |
The pulse control device 10 receives a switch output unit 100 that generates a pulse output voltage Vo from a DC input voltage Vi and supplies it to a load (for example, a relay coil 21 of a mechanical relay 20) and a feedback voltage of...
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JP6383848B1 |
To reduce the possibility of failure of individual relays. A relay unit 10 has a plurality of relays 19 and a controller 22. Multiple relays are connected in series with each other. The controller 22 can execute switching control between...
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JP6379070B2 |
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JP6369407B2 |
A fault detection system is provided which includes power lines connecting between a DC power supply and electric equipment, switches respectively provided to the power lines, a capacitor connected to the power lines at a position where ...
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JP6366737B2 |
Embodiments of the present invention provide a monitoring circuit and an electronic device, which relate to the circuit field and are used to improve configurability of a system. The monitoring circuit includes: a configuration interface...
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JP6362832B2 |
A contactor unit includes an input lead 12 connectable to a first lead of an energy output device 20, an output lead 14 connectable to a first lead of a voltage bus, a contactor 100 that connects and disconnects the input lead 12 from th...
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JP6360168B2 |
A diode contact protection combination switch and a specific implementation method. The combination switch comprises a primary contact protection circuit formed by a primary switch contact of a primary relay, diodes parallel connected at...
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JP2018109405A |
To provide an engine start system which is small and which has high reliability.This invention is regarding a system capable of starting an engine safely. The system includes a cranking relay for starting an engine by actuation, a non-co...
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JP6356325B1 |
To realize a technique capable of further enhancing the safety of a relay control device used for railway signaling equipment and the like. A relay control device 1 has a two-system control unit 20 (control unit) having the same configur...
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JP2018107046A |
To control deceleration of a speed of a movable contact by a simple configuration.A drive circuit 4 is a drive circuit of a contact unit 2, and includes a control unit 42. The control unit 42 controls an electromagnetic device 3 by contr...
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JP6353094B2 |
A switch device includes first and second switch units that are coupled respectively to first and second output terminals. Each of the first and second switch units includes a plurality of diodes and at least one semiconductor-controlled...
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JP6349203B2 |
In an electromagnetic contactor in the open path state, the electromagnet gap is wide and the magnetic resistance is high, so a large amount of magnetomotive force is needed at the start of path-closing. In the closed path state, the gap...
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JP6342684B2 |
To minimize reduction of output due to shadow at a low cost, without using a computer.A current dependent on the sunshine state of one of a plurality of solar cell panel groups flows through a relay coil 11, and currents dependent on the...
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JP2018073766A |
To provide a pump operation switch device for an atomic power plant with high safety property, which is continuously operated by a pump when switching control due to disaster and the like.In a switch device for operating a pump, a normal...
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JP6320826B2 |
A relay fault detection and correction system includes a signal detector structured to measure primary and secondary signals, and generates a fault output signal if the signals appear to be unterminated due to a relay not connecting the ...
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