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Bench Talk for Design Engineers

Bench Talk

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Bench Talk for Design Engineers | The Official Blog of Mouser Electronics


Bill Schweber is a contributing writer for Mouser Electronics and an electronics engineer who has written three textbooks on electronic communications systems, as well as hundreds of technical articles, opinion columns, and product features. In past roles, he worked as a technical web-site manager for multiple topic-specific sites for EE Times, as well as both the Executive Editor and Analog Editor at EDN.

At Analog Devices, Inc. (a leading vendor of analog and mixed-signal ICs), Bill was in marketing communications (public relations); as a result, he has been on both sides of the technical PR function, presenting company products, stories, and messages to the media and also as the recipient of these.

Prior to the MarCom role at Analog, Bill was associate editor of their respected technical journal, and also worked in their product marketing and applications engineering groups. Before those roles, Bill was at Instron Corp., doing hands-on analog- and power-circuit design and systems integration for materials-testing machine controls.

He has an MSEE (Univ. of Mass) and BSEE (Columbia Univ.), is a Registered Professional Engineer, and holds an Advanced Class amateur radio license. Bill has also planned, written, and presented on-line courses on a variety of engineering topics, including MOSFET basics, ADC selection, and driving LEDs.


The Mystery and Magic of Motor Genealogy Bill Schweber
For most electronic engineers, nearly all software engineers, and even many mechanical engineers, the world of electric motors and their many variations is a blend of mystery, magic, and fear. There's no minimizing the fact that there are so many sub-types and sub-sub-types, and each one has its own idiosyncrasies, attributes, virtues, and weaknesses.

Digital Power and Power Sequencing: Mostly Good News with some Cautions Bill Schweber
In most multi-rail systems, sequencing and relative timing of power-up or power-down for each supply rail is done by a specialized sequencer function, which can be implemented as part of a PMIC (power management IC) or a dedicated sequencer IC. Either way, the DC regulator that provides those rails and the sequencing functions are generally separate entities. Even if they are part of the same IC—which they often are in high-volume applications—they operate independently of each other.

How to Choose a Controller for Motor Applications Bill Schweber
Choosing the type of control to use for various motor applications is a strategic choice that should be made before selecting a specific vendor or model. This is because there are many trade-offs when deciding to use a general-purpose processor that is well-suited for motor control, a computation-friendly FPGA, or a dedicated control IC (the latter is most often from a specialized motion-control vendor).

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