Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 12,226

Document Document Title
WO/2019/202030A1
The invention relates to a battery management system (1), in particular for a rail vehicle, which comprises an system battery (12), a bus bar arrangement (14), a battery protection switch (10) for the controllable connection of the syste...  
WO/2019/196523A1
An auxiliary power supply circuit and a contactor applying same. The auxiliary power supply circuit comprises a contactor coil, a transformer, a fly-wheel diode on the primary side of the transformer, and a switching circuit on the secon...  
WO/2019/182688A1
An industrial process field device (100) includes an active component (111), a latching relay (120), a controller (110), a relay drive (122), and a reset circuit (140). The active component may be a sensor configured to sense a process p...  
WO/2019/181531A1
This relay circuit (10A) is provided with: a relay (11) having a coil (11A) and a contact portion (11B) for turning on/off the supply of power to a load (LD) operating by receiving the supply of power from a DC power supply (B) by the en...  
WO/2019/181547A1
A relay drive circuit 10 is provided between an upstream relay RL1 and a downstream relay RL2 driven in accordance with the driving of the upstream relay RL1, and drives the downstream relay RL2. The relay drive circuit 10 comprises: a s...  
WO/2019/163716A1
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...  
WO/2019/159233A1
This electromagnetic relay diagnosis device (100) comprises: an operation detection unit (1A) provided with a first light-emitting unit for emitting light when a current flows through a wiring (52) leading to a coil (51) in an electromag...  
WO/2019/155620A1
An air conditioner comprising an inrush current prevention circuit that prevents an inrush current from an AC power supply to a power conversion circuit, wherein the inrush current prevention circuit (202) comprises: a coil (28); a relay...  
WO/2019/153834A1
A contactor energy saving test circuit. A rectifier bridge (DB1) and a main power circuit form a contactor energy saving circuit, and a rectifier circuit (DB2), a sampling circuit, and a threshold comparison circuit are further added the...  
WO/2019/148633A1
Disclosed in the present application are a relay driving circuit and an air conditioner; the relay driving circuit comprises a first driving power source, a second driving power source, a switch circuit, and a control circuit; the switch...  
WO/2019/148632A1
Disclosed by the present application are a relay driving circuit and an air conditioner. The relay driving circuit comprises a control circuit, a power supply terminal, and a power supply regulating circuit. The power supply terminal and...  
WO/2019/145848A1
The present invention relates to a method for monitoring a health condition of a trip circuitry using a trip circuit supervision (TCS) relay. A circuit breaker operates to interrupt a current flowing in an electrical line by opening main...  
WO/2019/141461A1
The invention relates to a circuit assembly (100) for applying an electric signal to an electric load (101), comprising a signal connection (102), to which the electric signal can be applied, and a first signal branch (103), in which a s...  
WO/2019/135092A1
A relay protection device is disclosed for use with a magnetic latching relay, the relay having two stable states. The relay comprises an electromagnetic device which under the effect of a switching impulse current, causes the relay to s...  
WO/2019/131432A1
An electromagnetic relay for detecting a mismatch between the contact (or separation) timing of a movable contact point on one side with a fixed contact point on said one side, and the contact (or separation) timing of a movable contact ...  
WO/2019/106488A1
The invention is based on a domestic appliance device (10), in particular a cooking appliance device, comprising at least one electromechanical switching unit (12), which has at least one control coil (14), and at least one evaluation un...  
WO/2019/092555A1
A safety switch for controlling the access to industrial machines or plants comprises a switching device (2) adapted to be associated with a fixed part (F) of the access (B) to be controlled and having switching means operably connectabl...  
WO/2019/087062A1
A method of regulating the operation of an electrical system (200). The electrical system includes, a load (208), at least one sensor coupled to the load configured to measure at least one characteristic of the load, a solenoid having at...  
WO/2019/076091A1
Provided is a contactor power saver, comprising a main power circuit, a current sampling circuit, an error amplification circuit, and a PWM control circuit, wherein the current sampling circuit samples a voltage signal of the main power ...  
WO/2018/009747A3
In accordance with aspects of the present invention, a power control circuit includes a MAIN window comparator circuit providing a MAIN signal; an AUX window comparator circuit providing an AUX signal; a state machine receiving the MAIN ...  
WO/2019/072516A1
An electromagnetic switch and a starter comprising the electromagnetic switch, wherein the electromagnetic switch comprises a housing (11); a fixed core (13), fixed to the housing; a movable core (14), mounted to the housing so as to be ...  
WO/2019/063440A1
The invention relates to a medium voltage circuit breaker or recloser equipped with an electromagnetic drive and with means for monitoring the travel curves of the closing and opening operation, according to the preamble of claim 1. In o...  
WO/2019/058738A1
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 ...  
WO/2019/057026A1
The present invention provides a relay for a high voltage circuit. A switch of the relay is driven by a low voltage source. The relay comprises a main coil and a first armature cooperating with the main coil, wherein a coil current of th...  
WO/2019/055422A1
Provided herein is an improved bi-stable relay operable with a relay control circuit including a boost converter and an energy storage device, which is used to switch the bi-stable relay. In some embodiments, the bi-stable relay includes...  
WO/2019/044428A1
This controller 10 performs a first welding check and a second welding check in an arbitrary order then performs a third welding check prior to the fourth welding check and a fifth welding check prior to a sixth welding check. The first ...  
WO/2019/036644A2
A method and system for monitoring a state of a relay switch. The method applies a voltage signal to a solenoid of the relay switch for actuation of the relay switch, monitors over time current flowing through the solenoid after applicat...  
WO/2019/031415A1
[Problem] To provide a fail-safe function for an operation of grounding a circuit to be grounded and for an operation of ungrounding a grounded circuit. [Solution] The present invention is provided with: a first contact in a first relay ...  
WO/2019/001841A1
A method (30) for switching a contactor (1) is provided. The method (30) is performed by a control device (20) controlling a control voltage supplied to a coil (10) of the contactor (1), wherein the coil (10) is energized and de-energize...  
WO/2018/227235A1
Remote control of circuits is enabled by a control circuit management technology (CCMT) device, system and method coupled to one or more circuit breakers. The CCMT is enabled to remotely and selectively switch off and on one or more circ...  
WO/2018/219624A1
The invention relates to an electromechanical relay (100) for determining the position of an armature. The electromechanical relay (100) comprises an excitation coil (101), which is designed to produce a magnetic field. The electromechan...  
WO/2018/220894A1
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...  
WO/2018/213908A1
The present invention comprises four basic arrangements (figures 1 to 4) in which the switching element for the electrical power is a monostable relay with reversible contacts or otherwise that is provided with one or more electrical pat...  
WO/2018/207204A1
Techniques for controlling state of an electrical device (102) are described. A system (100) for controlling the state of the electrical device (102) includes a load switch (104) connected to the electrical device (102). The load switch ...  
WO/2018/207231A1
This relay control device (100) is provided with: a coil (3); a movable iron piece (4) that is switched from an open state to a closed state when the coil (3) is excited; a switching current output circuit that allows a first current to ...  
WO/2018/198538A1
[Problem] To provide a novel and improved arc-suppressing device capable of reducing the consumption of power by a current-limiting circuit used for suppressing an arc occurring when the power is shut down, so as to reduce the consumptio...  
WO/2018/197430A1
The invention relates to a relay (1) which has a first contact (2), a second contact (3), and a movable element (4), which can be arranged in a closed position and in an open position, wherein, in the closed position, the movable element...  
WO/2018/198000A1
A circuit and method for controlling a voltage applied to a coil 102 to actuate electromechanical relays or contactors. The strength of a magnetic field operating the coil is a function of the product of the number of turns of the coil w...  
WO/2018/194538A1
A zero cross detection circuit is included in a system circuit for accurately detecting a zero cross event from an alternating current power source in the system circuit. The detecting zero cross event is monitored to accurately time a c...  
WO/2018/188025A1
A control method for a relay, a control circuit, and a processor. The control method comprises: obtaining a work state switching time for switching the work state of a relay and a power supply signal (810); determining, according to the ...  
WO/2018/180141A1
In this invention, a switch circuit (10) to which the switch circuit structure is applied, brings a switch terminal (20) and a connection terminal (24) into a connected state or a non-connected state, thereby switching a switch (12) on o...  
WO/2018/177770A1
The present invention relates to a diagnosis of the switch elements in an inverter, in particular an inverter of an electric drive system. To this end, an intermediate circuit capacitor of the inverter is charged and, selectively, either...  
WO/2018/177772A1
The invention relates to the diagnosis of the switching elements in a bidirectional DC-to-DC voltage converter. By charging a capacitor in the DC-to-DC voltage converter and then specifically actuating the switching elements and evaluati...  
WO/2018/173066A1
Disclosed is an electrical circuit protection device (100) for use in electrical circuits. The electrical circuit protection device (100) includes an electric fault detection and isolation device (104) to protect from overvoltage and an ...  
WO/2018/165653A1
Recloser apparatuses, methods and systems are disclosed. In one embodiment a recloser includes a vacuum interrupter coupled with first and second electrical terminals. A driving structure is coupled with the vacuum interrupter. An electr...  
WO/2018/157931A1
A safety circuit coupled between a first direct current (DC) circuit and a second DC circuit, wherein the first DC circuit supplies power to the second DC circuit. The safety circuit comprises a first series connection between positive p...  
WO/2018/160530A1
Wireless communication enabled circuit breakers are described. Methods associated with such wireless communication enabled circuit breakers are also described. The wireless communication enabled circuit breakers may controlled by a remot...  
WO/2018/159041A1
Provided is a control circuit for causing a movable contact point in a switch device to return at a high-speed compared to prior art. This switch device contains a first switch element having a movable contact point, and a drive coil for...  
WO/2018/146942A1
[Problem] To provide an arc-suppressing device capable of suppressing the occurrence of an arc even at shutdown time of a large current. [Solution] Provided is the arc-suppressing device comprising: a current-limiting circuit installed i...  
WO/2018/139636A1
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...  

Matches 1 - 50 out of 12,226