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Patent Searching and Data


Matches 1 - 50 out of 12,029

Document Document Title
WO/2018/006487A1
A contactor coil control circuit comprising a switch control circuit, a drive circuit, a quick shut-off circuit, a diode D1, a first MOS transistor TR1 and a contactor coil. The quick shut-off circuit at least comprises an MOS transistor...  
WO/2018/008360A1
Provided is a relay device which is applicable to a system that may supply power to a load through at least two power storage units, and which, if an anomaly such as an open failure occurs in the path of either of the power storage units...  
WO/2017/217360A1
Provided is a relay device wherein a defect, due to the occurrence of a reverse flow of an electric current in any path, may be prevented. A control unit (12) provided in the relay device (10) functions as a switching control unit, maint...  
WO/2017/209915A1
Apparatus and method for latching one pole contact of at least one springy pole in a relay or hybrid switch for maintaining an engaging or disengaging state of at least one first contact with said pole contact by a mechanical latching de...  
WO/2017/205897A1
A method for operating a fail-safe programmable solid-state relay, the method comprising the steps of performing a set of self-tests at an initial start-up and cyclically during the powered state of the solid-state relay, wherein a self-...  
WO/2017/206365A1
A single coil magnetic latching relay control circuit and a method, the circuit comprising: a first control circuit (21) and a first single coil magnetic latching relay coil (22), the first control circuit (21) comprising: a first triode...  
WO/2017/207403A1
The invention relates to a safety switching device (10) for fail-safe disconnection of an external load (34) having a first pole (28) and a second pole (32). The safety switching device (10) comprises a first terminal (26) for receiving ...  
WO/2017/204038A1
In a power supply control device (10), if semiconductor switches (20a, 20b) of a switch circuit (2) are on, and a relay contact point (30) is off, a control unit (58) determines whether a switch current value (Is) detected by a current s...  
WO/2017/200539A1
A system (100) and method is provided that facilitates functional safety monitoring of relay contacts. The system may include a contactless sensor circuit (108) that includes: an output signal antenna (110) positioned in the contactless ...  
WO/2017/199947A1
In this power supply control device (10), the supply of power is controlled through a switch circuit (2) and a relay contact (30). In case where semiconductor switches (20a, 20b) are ON and a relay contact (30) is OFF, if the switch temp...  
WO/2017/200747A1
Multiple relays are connected in parallel by including one or more semiconductor devices connected across the relay contacts. The semiconductor devices are triggered to conduct and shunt transient currents during the opening and closing ...  
WO/2017/194295A1
The invention relates to a method and a device for determining the movement profile of a solenoid plunger in a solenoid.  
WO/2017/194546A1
The invention relates to a monitoring arrangement (10, 100) for monitoring a security device (11, 111) comprising a) a first electric supply source (15) which is connected to an input terminal (12) for connecting an input of the security...  
WO/2017/184418A1
Provided herein are improved relay protection systems that can detect a short to ground condition on an output of a relay. A relay protection system can bias an output of the relay. The output of the relay can be monitored to determine i...  
WO/2017/178325A1
The invention relates to a switch test device (10) for testing a switch (2), which comprises an energy store (32) and an electromechanical drive (34) fed by at least the energy store (32) when the switch is actuated. The switch test devi...  
WO/2017/174994A1
The present invention provides a fault monitoring system for detecting connectivity faults in a device control centre. The fault monitoring system comprising for the or each control section, at least a first pair of temperature sensors, ...  
WO/2017/162396A1
The invention relates to a device (10) for measuring a condition of an electric switch (1), the device (10) being designed to tap a voltage at main contacts (2a, 2b) of the electric switch (1). The invention also relates to an electric s...  
WO/2017/159307A1
The present invention ensures the supply of power to a load even in the event of a short circuit or open circuit failure in one of two power supplies that provide redundancy for supplying power to the load. This power supply box is equip...  
WO/2017/159069A1
Provided is an operation coil drive device for an electromagnetic contactor capable of reliably detecting the adsorption state of a movable iron core without using a position sensor or a timer. The present invention comprises: a current ...  
WO/2017/159070A1
Provided is an operation coil drive device for an electromagnetic contactor, capable of confirming the operation resistance value for an operation coil and capable of obtaining a suitable operation coil current for operation conditions. ...  
WO/2017/140350A1
The invention relates to a safety switching device (10) comprising a control side (40) with at least one single-error tolerance, having a first and second control unit (12, 14), each formed on an actuation side (50) for emitting a switch...  
WO/2017/137279A1
The invention relates to a modular safety switching apparatus (100) for controlling a plurality of electrical devices. The modular safety switching apparatus (100) comprises a first safety switching module (101) having a first switching ...  
WO/2017/126486A1
The present invention provides a transformer for a breaker circuit with which it is possible to actuate a breaker instantly to break a circuit in the event of an overcurrent such as with a short. The transformer for a breaker circuit (4)...  
WO/2017/118558A1
The invention relates to a control device for an electromagnetic drive of a switchgear, comprising a plurality of network parts (101, 102), each of which is configured to provide an electrical power sufficient for operating the electroma...  
WO/2017/113843A1
An energy-saving circuit for a contactor, comprising a coil driver circuit, a rectifier and filter circuit, a PFC circuit, an auxiliary power supply circuit, and a square wave generation circuit. The square wave generation circuit output...  
WO/2017/116847A1
A notification system including an electrical receptacle and a notification control unit. The electrical receptacle includes an outlet configured to receive an electrical device and a switch. The switch is configured to determine when th...  
WO/2017/102025A1
For providing a very simple and reliable monitoring of the functionality of contacts together with a high flexibility of selection of the contacts a method for monitoring the functionality of redundantly interconnected contacts is provid...  
WO/2017/102403A1
The invention relates to a starting device for an internal combustion engine, comprising a resistor unit with an NTC resistor element in the circuit, said NTC resistor element being located on a contact portion which is adjoined by a the...  
WO/2017/099341A1
The present invention relates to a smart temperature measuring device wherein temperatures (T) measured with regard to terminals of respective phases (R, S, T) of a circuit breaker are displayed through first, second, and third display u...  
WO/2017/093552A1
The present invention relates to a circuit arrangement for actuating an electromagnetic drive system for electromechanical devices, in particular comprising a mechanically locked end position, at least one control voltage source (UB), at...  
WO/2017/089548A1
The invention relates to a switching apparatus (100) for actuating at least one switching device (210, 221, 222, 310, 321, 322) comprising a control unit (110) which is designed to actuate the at least one switching device (210, 221, 222...  
WO/2017/085798A1
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...  
WO/2017/080963A1
The invention relates to a method for controlling an electromagnetic drive of a switching device by means of a program, wherein a processor configured by the program carries out the following steps: measuring a control voltage applied to...  
WO/2017/068764A1
An electromagnetic relay has a contact device, an electromagnet device, a power supply unit, a switch unit, and a control unit. The contact device has a movable contact and a fixed contact. The electromagnet device has a coil and a movab...  
WO/2017/063933A1
The invention relates to a control device for an electromagnetic drive of a switching apparatus, comprising a power supply unit (10) for generating a starting direct voltage and a holding direct voltage for the electromagnetic drive (12)...  
WO/2017/055031A1
The invention relates to a household appliance (7) having at least one mechanical relay (1) and a switch detection device (8) for detecting a switch of at least one relay (1). The switch detection device (8) has at least one measuring de...  
WO/2017/043202A1
According to the present invention, whether an execution condition for a first welding detection is satisfied or not is determined at S401. If the execution condition for the first welding detection is satisfied, the first welding detect...  
WO/2017/034900A1
An electro-mechanical relay with at least one pair of switchable electrical contacts includes a wireless communications control function. The wireless communications control function may be a receiver or a transceiver and may be within a...  
WO/2017/031527A1
A programmable solid-state relay comprising a base module; a configuration module; a control voltage module comprising an energy storage device; a controller module having at least two microcontrollers, each comprising an internal EEPROM...  
WO/2017/025044A1
A magnetic resistance relay (1) comprises a substrate (2), a magnetic field excitation coil (3), a magnetic resistance sensor (4) and an integrated circuit switch (5) which are disposed on the substrate, an excitation signal input electr...  
WO/2017/022009A1
In order to reduce the occurrence of condensation at fixed contacts of a power supply relay during an interruption operation of the power supply relay, a steering angle main control module (8) is provided inside a housing (34), the steer...  
WO/2017/018147A1
[Problem] To provide a switching device that achieves cutoff of high-voltage DC power while suppressing generation of an arc discharge with a small-sized configuration at a time of cutting off the high-voltage DC power. [Solution] Provid...  
WO/2017/013934A1
Provided is a feature allowing more fault diagnoses to be performed even when a relay is to be shut-off to perform fault diagnosis thereof. Once the relay is shut-off during an energizing period with an electromagnetic load, this in-vehi...  
WO/2017/004681A1
An electromechanical relay switching system for reducing electromagnetic or radio interference. The system includes an electromechanical relay with an energizeable coil and a microcontroller configured to synchronize energizing the coil ...  
WO/2016/207713A1
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...  
WO/2016/194584A1
[Problem] To provide a DC circuit capable of ensuring safety even if a short circuit should occur due to the deterioration time of a semiconductor switch when using said semiconductor switch to suppress arcing. [Solution] Provided is a D...  
WO/2016/173619A1
It is shown a switch circuit 5. The switch circuit 5 comprises at least a first and a second switch element 10, 15 connected in series and a switch control 20 configured for providing control signals 25a, b for switching the first and th...  
WO/2016/170699A1
Provided is a switching device allowing power to be stably supplied and interrupted, and limits the effects of chattering due to a mechanical relay when the mechanical relay is combined with a solid state relay, and when the supply and i...  
WO/2016/156652A1
The invention relates to a relay controlled by a method that prevents the wear of a set of one or a number of contacts, included in a relay, during their connection and disconnection. In particular, this relay permits the connection or d...  
WO/2016/161186A1
A load control device (e.g., a switching device) for controlling power delivered from an AC power source to an electrical device (e.g., a lighting load) may be configured to detect that a relay is stuck closed and attempt to fix the rela...  

Matches 1 - 50 out of 12,029