Patent application number | Description | Published |
20090102400 | METHOD FOR DRIVING A PTC ELECTRICAL LOAD ELEMENT - A method is intended to make it possible to drive a PTC electrical load element with a switching unit with the highest possible operational reliability. For this purpose, the electric current is switched off if a predetermined current threshold value is exceeded, the magnitude of the current threshold value being determined from the operating parameters of the load element. | 04-23-2009 |
20100244714 | SYSTEM AND METHOD TO IMPROVE SWITCHING IN POWER SWITCHING APPLICATIONS - A circuit for improving the control of a change in state of a signal in an electronic device between a first state and a second state, wherein a first change in state occurs when the state changes from the second state to the first state and a second change in state occurs when the state changes from the first state to the second state and wherein the first and second changes in state have associated therewith a first and a second time delay over which the or each change in state occurs, characterized in that said circuit comprises a determining unit for measuring the first time delay and a calculator for calculating a common delay to replace one or more of the first and second delays to thereby improve the control of the change in state of the signal | 09-30-2010 |
20110001486 | APPARATUS AND A METHOD FOR DETECTING FAULTS IN THE DELIVERY OF ELECTRICAL POWER TO ELECTRICAL LOADS - Apparatus for detecting faults in the delivery of electrical power to electrical loads, includes a plurality of load electrical connections arranged to deliver electrical power from an electrical power source to each of a plurality of electrical loads, a plurality of electrical switches, each connected to an associated one of the load connections, and a diagnostic device operable to detect a short circuit fault in the apparatus, wherein the diagnostic device is operable to apply a diagnostic procedure to detect a short circuit connection between at least two of the load electrical connections and includes a control logic unit operable to apply to each of the electrical switches in turn a test control signal causing operation of the switch to apply a test electrical signal to each of the load electrical connections in turn; and detector means connected to the load electrical connections and operable, whilst the test electrical signal is applied in turn to each load electrical connection, to detect whether a corresponding electrical output is produced in response on any of the other load electrical connections. Also described is a method of operation in the apparatus. | 01-06-2011 |
20120119678 | METHOD FOR DRIVING A PTC ELECTRICAL LOAD ELEMENT - A method is intended to make it possible to drive a PTC electrical load element with a switching unit with the highest possible operational reliability. For this purpose, the electric current is switched off if a predetermined current threshold value is exceeded, the magnitude of the current threshold value being determined from the operating parameters of the load element. | 05-17-2012 |
20130106467 | HIGH SIDE DRIVER CIRCUIT | 05-02-2013 |
20140084940 | APPARATUS AND A METHOD FOR DETECTING FAULTS IN THE DELIVERY OF ELECTRICAL POWER TO ELECTRICAL LOADS - A method of and apparatus for fault detection utilizing a diagnostic procedure by a diagnostic device to detect a short circuit between at least two of a plurality of load electrical connections, the diagnostic procedure comprising applying a test electrical signal to each of the load electrical connections in turn and whilst applying the test electrical signal to a first one of the load electrical connections, detecting whether an electrical output is present, in response, on any other of the load electrical connections, wherein the detecting by the diagnostic device includes applying the test electrical signal to the first one of the load electrical connections in an operational mode of the apparatus when an electrically controlled switch connected to the first one of the load electrical connections is in an off state. | 03-27-2014 |
20150227663 | METHOD OF OPTIMIZING THE DESIGN OF AN ELECTRONIC DEVICE WITH RESPECT TO ELECTROMAGNETIC EMISSIONS BASED ON FREQUENCY SPREADING INTRODUCED BY DATA POST-PROCESSING, COMPUTER PROGRAM PRODUCT FOR CARRYING OUT THE METHOD AND ASSOCIATED ARTICLE OF MANUFACTURE - There is described a method of optimizing the design of an electronic device with respect to electromagnetic emissions based on frequency spreading. With the method, a designer can, for example, perform a transient simulation on the device only once, and then process the obtained signal data to add frequency spreading with specific parameters by post-processing. The resulting data can be filtered by various methods and the resulting spectrum observed. The designer can thus evaluate the reduction in electromagnetic emission level, and repeat this process by iteratively applying frequency spreading each time with specific parameters but without having to modify the schematic of the device and to perform another simulation of the device. The post-processing according to this innovation is extremely rapid as it is not a simulation process such as SPICE™, ADS™, etc. Only data is manipulated. | 08-13-2015 |
20150227664 | METHOD OF OPTIMIZING THE DESIGN OF AN ELECTRONIC DEVICE WITH RESPECT TO ELECTROMAGNETIC EMISSIONS BASED ON FREQUENCY SPREADING INTRODUCED BY SOFTWARE, COMPUTER PROGRAM PRODUCT FOR CARRYING OUT THE METHOD AND ASSOCIATED ARTICLE OF MANUFACTURE - There is described a method of optimizing the design of an electronic device with respect to electromagnetic emissions based on frequency spreading. With the method, a designer can, for example, perform a transient simulation on the device only once, and then add frequency spreading with specific parameters by simulation. The resulting frequency spread signal can be observed. The designer can thus evaluate the reduction in electromagnetic emission level, and repeat this process by iteratively applying frequency spreading each time with specific parameters but without having to modify the schematic of the device and to perform another simulation of the device. The method according to this innovation is extremely rapid as the simulation of the design does not need to be repeated at each run of the frequency spreading simulation. | 08-13-2015 |
20150227665 | METHOD OF OPTIMIZING THE DESIGN OF AN ELECTRONIC DEVICE WITH RESPECT TO ELECTROMAGNETIC EMISSIONS BASED ON FREQUENCY SPREADING INTRODUCED BY HARDWARE, COMPUTER PROGRAM PRODUCT FOR CARRYING OUT THE METHOD AND ASSOCIATED ARTICLE OF MANUFACTURE - There is described a method of optimizing the design of an electronic device with respect to electromagnetic emissions based on frequency spreading. With the method, a designer can add frequency spreading with specific parameters by hardware. The resulting frequency spread signal can be observed. The designer can thus evaluate the reduction in electromagnetic emission level, and repeat this process by iteratively applying frequency spreading each time with specific parameters but without having to modify the design of the device and to generate another prototype of the device. | 08-13-2015 |