| Patent application number | Description | Published |
|---|
| 20080200128 | Twisted Pair Communication System, Apparatus and Method Thereof - A communication system comprises a twisted pair communication link operably coupled to at least two driver stages for providing at least two independent input signals on the twisted pair communication link. The at least two independent input signals on the twisted pair communication link are summed and input to a comparator arranged to compare the summed signal to a reference value. The output of the comparator is input to the at least two driver stages. The outputs from the at least two driver stages are summed and fed back and summed with one or more of the independent input signals. | 08-21-2008 |
| 20080221759 | DRIVE ARRANGEMENT FOR ACTIVATING A CAR SAFETY DEVICE ACTIVATION ELEMENT - A drive arrangement for activating a car safety device activation element, such as an air bag, comprises a drive circuit, which is coupled to the car safety device activation element. The drive circuit generates an activation signal which activates the car safety device. The arrangement includes a power supply transistor which is coupled in series with a power supply input of the drive circuit and an energy reservoir such as a capacitor. The arrangement further comprises control means which controls the supply voltage to the drive circuit by controlling the power supply transistor to operate in an active region to provide a voltage drop during activation of the car safety device activation element. Hence, a significant voltage drop and thus energy dissipation may be moved from the drive circuit to the power supply transistor. The drive circuit may therefore be reduced in size and the power supply transistor may be implemented in a cheap technology suitable for energy dissipation. | 09-11-2008 |
| 20080259515 | Power Switching Apparatus With Open-Load Detection - Power switching apparatus comprising switch means having a control terminal and output terminals for connection in series between a power supply and a load. The switch means is responsive to a control signal applied to the control terminal to switch between an ON-state in which it supplies power supply current from the power supply through the output terminals to the load and an OFF-state in which it interrupts the supply of power through the output terminals to the load. The apparatus includes detection means for detecting an open-load condition of the load at least during the ON-state of the switch means, comprising detection control means operable in the ON-state of the switch means for modifying the control signal so as to start switching the switch means to the OFF-state during a lapse of time substantially less than the time required for the switch means to reach the OFF-state and for restoring the control signal to a value corresponding to the ON-state at or before the end of the lapse of time, and comparator means responsive to variation of voltage at the output terminals during the lapse of time. The duration of the variation of voltage during the open-load detection is too short and its magnitude too small for the variation of load current to be perceptible, notably in the case where the load is a lamp. | 10-23-2008 |
| 20090115489 | SWITCH ARRANGEMENT, INTEGRATED CIRCUIT, ACTIVATION SYSTEM - A switch arrangement for providing a drive signal at an output comprises a drive switch coupled to the output of the switch arrangement and a regulating element coupled in series between the drive switch and a power supply input of the switch arrangement. The drive switch is operable to provide the drive signal at the output. The switch arrangement is characterised in that the regulating element is coupled in a cascode arrangement with the drive switch such that in operation the regulating element limits the voltage drop across the drive switch to a predetermined level. | 05-07-2009 |
| 20100109623 | CIRCUIT, INTEGRATED CIRCUIT AND METHOD FOR DISSIPATING HEAT FROM AN INDUCTIVE LOAD - A circuit comprises an inductive load. The circuit further comprises an energy-absorbing component operably coupled to the inductive load and arranged to absorb energy generated by the inductive load. | 05-06-2010 |
| 20100128402 | INTEGRATED CIRCUIT, ELECTRONIC DEVICE AND ESD PROTECTION THEREFOR - An integrated circuit comprises electro-static discharge (ESD) protection circuitry arranged to provide ESD protection to one or more external connector(s) of the integrated circuit. The ESD protection circuitry comprises at least one ESD protection component coupled to the one or more external connectors for providing ESD protection thereto. The ESD protection circuitry further comprises an ESD connector, coupled to the one or more external connector(s), arranged to couple supplementary ESD protection to the one or more external connector(s). | 05-27-2010 |
| 20100165538 | DIGITAL SQUIB DRIVER CIRCUIT - A driving circuit for generating a required firing current for a safety device comprising an arrangement of a first transistor (M | 07-01-2010 |
| 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 |
