Motorola Corporation

Kevin M Andrews

Roy E Hunninghaus

David J Anderson

Anthony R Schooler

Yun H Kim

Gary L Christopher

William John Rinderknecht

Brian D Chapman

Joseph P Tomase

Jeffrey P Kotowski

Peter W Murphy

A method for performing timing synchronization between digital input data and a system clock in a communication device includes providing a system clock rate that is higher than a data clock rate and sampling the input data at intervals in the system clock periods within the data clock period. The method includes adjusting the timing between the digital input data and the system clock by either shortening the number of system clock periods and sampling intervals, or lengthening the number of system clock periods and sampling the input data at normal intervals and providing data insertion to fill one of the extra system clock periods, such that more data samples are provided in the data clock period.

Timing synchronization in a communication device

An electronic control module (10) includes a circuit substrate (12) containing a plurality of thermal vias (36) and a heat-generating electronic device (26) attached to the thermal vias (36). The circuit substrate (12) is attached to a mounting plate (18) by a plurality of electrically-isolated, thermal attachment pads (20) located at selected positions on an electrically insulating layer (16) overlying a metal baseplate (14). A solder layer (22) functions to both mechanically attach the plurality of thermal vias (36) to the plurality of thermal attachment pads (20), and to provide a thermal dissipation pathway for heat generated by the electronic devices (26). The heat is transferred from the circuit substrate (12) through the plurality of thermal attachment pads (20) to the metal baseplate (14).

Solder bonded electronic module

A knock detection method and apparatus integrates a knock sensor signal (107) over a first period and provides a first integrated knock sensor signal (119), and integrates the knock sensor signal (107) over a second period and provides a second integrated knock sensor signal (139). A knock indication (131) is provided dependent on an amplitude of the first integrated knock sensor signal (119) and an amplitude of the second integrated knock sensor signal (139) and independent of the influence of the variations of the knock sensor (101) potential sensor to sensor gain variation.

Knock detection method and apparatus with dual integration windows

A method and apparatus is disclosed for measuring and/or controlling the level of current in a Sense FET which includes a power transistor (M1) and a sense transistor (M2). The transistors (M1) and (M2) are both biased to operate in a linear mode, and the Vds of the sense transistor (M2) is compared to a predetermined fraction of the Vds of the power transistor (M1). A control signal is generated that is representative of the results of the comparison, and, in one embodiment, that control signal is used in a feedback arrangement to drive the Vds of the sense transistor (M2) to the predetermined fraction of the Vds of the power transistor (M1). Consequently, the level of current carried by the sense transistor (M2) is caused to be equal to the same predetermined fraction of the current carried by the power transistor (M1).

Current monitoring and/or regulation for sense FET's

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Kenosha, WI, United States of America

Kevin M Andrews