| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 361195000 | Time delay | 7 |
| 20080198529 | Method For Operating A Solenoid Valve For Quantity Control - A method for controlling a solenoid valve, particularly in a motor vehicle. The inventive method is characterized by applying a first voltage (U | 08-21-2008 |
| 20120206851 | METHOD FOR CONTROLLING THE OPENING OR CLOSING OF AN ELECTRIC CIRCUIT IN AN ELECTRIC METER - A method of controlling the opening or the closing of an AC electric circuit in an electricity meter by means of a relay is provided. The method times relay activation commands so as to take account of the inertial delay (di) of the relay, in such a manner that the actual activation command applied to the relay causes the relay actually to take action on the electric circuit when an electrical parameter of said circuit reaches a zero value, in order to limit the formation of electric arcs in the relay. | 08-16-2012 |
| 20130286528 | ELECTRICAL RELAY CONTROL ARRANGEMENT FOR SWITCHING AN ELECTRICAL RELAY AT ZERO CROSSING OF AN AC MAINS SUPPLY - An electrical relay contact arrangement for switching an electrical relay ‘on’ or ‘off’ at zero crossings of an AC mains supply, wherein the arrangement rather than immediately sending a control signal from a microprocessor to the input of the electrical relay to close or open the mechanical electrode contacts when switching is required, relies upon a time interval made up two delays, firstly when the microprocessor first recognizes switching is required there is a waiting period until the next zero crossing, and then a further delay which is the time difference between the lag times of the mechanical contact electrodes physically opening or closing and that of the next zero crossing. | 10-31-2013 |
| 20140133061 | Systems and Methods for Delaying Actuation of a Relay - A system includes a relay, an actuation circuit, and an actuation delay circuit. The relay is coupled to a source of an input voltage or current waveform. The relay includes an actuation coil. The actuation circuit detects a peak or valley of a rectified voltage ripple waveform. The rectified voltage ripple waveform is generated from the input voltage or current waveform. The actuation circuit also causes an actuation voltage to be provided to the actuation coil. The actuation delay circuit delays the actuation circuit from providing the actuation voltage. The actuation delay circuit is configured based on the peak or valley of the rectified voltage ripple waveform. The actuation delay generated by the actuation delay circuit causes the relay to begin allowing current to flow to a load device at a time coincident with a zero-crossing time value of the input voltage or current waveform. | 05-15-2014 |
| 20140268474 | METHOD OF CLOSING A RELAY SWITCH AND APPARTUS THEREOF - A load control device for controlling an amount of power delivered from an alternating current (AC) power source to an electrical load includes a relay operable to be coupled in series electrical connection between the AC power source and the electrical load. The relay has one or more relay contacts. The load control device includes a zero-cross detector operable to detect zero crosses of the alternating current and to generate zero cross signals, and a controller operatively coupled to a control input of the relay and the zero-cross detector for rendering the controllably conductive device conductive and non-conductive. The controller determines a relay actuation adjustment such that the contact reliably completes bouncing just prior to a zero cross and may initiate an actuation of the relay based on the actuation adjustment and the zero cross signal. | 09-18-2014 |
| 20150055272 | METHOD AND SYSTEM FOR SOFT SWITCHING OF A RELAY - Provided is a system for soft switching of an electromechanical relay in a lighting control system using a sensor to detect a specified non-zero position in the electrical input waveform. Following this non-zero position, an adaptive time delay is applied before activation of the relay coil. An error detection circuit measures a time error between relay operation and the zero electrical input condition. This error signal is used to update the adaptive time delay for future relay operations. Using such a procedure has been shown to limit electrical stress on the relay, and therefore lengthen its life. | 02-26-2015 |
| 361196000 | Including semiconductor device connected to timing element | 1 |
| 20140071578 | BRAKING SYSTEM CONTACTOR CONTROL AND/OR MONITORING SYSTEM AND METHOD - A braking system can include a monitor circuit and/or a contactor control circuit. The braking system utilizes a number of contactors coupled between a power bus. The contactors selectively provide power to resistive elements. The monitor circuit is configured to determine the number of closed contactors of the contactors using current transformers. The contactor control circuit is configured to open and close the contactors. The control circuit includes a solid state timer circuit for each coil associated with the contactors. The solid state timer circuit bypasses a resistive element in series with the coil for a period of time. | 03-13-2014 |
